What's New?

As the Michigan state trunkline system is constantly evolving and new (or "new" historical) information is discovered or passed along, new and updated information is added to this site. Below is a list of those changes, with the latest ones listed first.

September 12, 2024		Corrected a typo on the June 4, 1962 historical item on the I-75 route listing. (Thanks, Jim!)
August 30, 2024		Today's website updates include: Updated the December 1–4, 1961 historical item on the Historic US-27 route listing. Updated the June 4, 1962 historical item on the I-75 route listing.
August 29, 2024		What's updated on the website: Updated the August 20, 1960 historical item on the Historic US-27 route listing. Updated the July 2, 1968 and November 1, 1973 historical items and added new September 1, 1961, November 1–15, 1968, and October 22, 1970 historical items to the M-33 route listing.
August 28, 2024		Here's what's new or changed today: Added new September 1956 and May 23–July 3, 1957 historical items and updated the August 21, 1957 historical item on the Historic US-27 route listing. Added a new June 24, 1957 historical item to the M-39 route listing.
August 20, 2024		Today's website updates include: Added a link to an excellent in-depth historical essay on the Davison Expressway and the City of Highland Park to the M-8 route listing. Also added a new note to the Notes section of the M-8 route listing.
August 19, 2024		What's updated on the website: Added an M-1 route map for the M-1 route listing. Added an M-3 route map for the M-3 route listing. Added an M-97 route map for the M-97 route listing. Added a BUS US-24 (Pontiac) route map for the BUS US-24 (Pontiac) route listing. Added a BL I-75 (Pontiac) route map for the BL I-75 (Pontiac) route listing.
August 18, 2024		Here's what's new or changed today: Added an M-5 route map for the M-5 route listing. Added an M-10 route map for the M-10 route listing.
August 17, 2024		Today's website updates include: Added an M-8 route map for the M-8 route listing. Added an M-150 route map for the M-150 route listing. Corrected some typos on the M-142 route listing, M-143 route listing, and the Iron Mountain Bypass (1978–1999) page.
June 14, 2024		What's updated on the website: Updated the November 2, 1932 historical item on the M-121 route listing. Updated the September 18, 1940–1942 historical item on the M-134 route listing.
June 9, 2024		Here's what's new or changed today: Added a "new style" route listing for Former M-146 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section and two historic route maps. Added a "new style" route listing for M-150 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section. Added a "new style" route listing for M-152 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section and two new route maps. Added two new historic route maps to the Former M-151 route listing. Added a new historic route map to the Former M-208 route listing.
June 3, 2024		Added a "new style" route listing for Former M-145 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section and two historic route maps.
June 1, 2024		Today's website updates include: Added a "new style" route listing for Former M-144 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section and an historic route map. Added a map to the November 12, 1940 historical item on the M-72 route listing. Added two new historical route maps to the Former M-76 route listing.
May 29, 2024		What's updated on the website: Completely overhauled the history section of the M-50 route listing (and other additions and improvements), adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in four times the amount of information!) Completely overhauled the history section of the M-51 route listing (and other additions and improvements), adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! Updated the October 22, 1935 and July 13, 1939 historical items on the Former M-9 route listing. Updated the Mid-September–December 1, 1968 historical item on the M-13 route listing. Added new June 30,1930 and October 29, 1932, August 30–September 27, 1937 historical items and updated the Aug 15, 1935 historical item on the Historic US-16 route listing. Updated the October 11–November 1, 1967, December 15, 1967 and June 28, 1968 historical items on the Historic US-27 route listing. Added new 1963, March 30, 1967 and mid-May 1969 historical items to the M-49 route listing. Updated the July 29–August 1, 1958 historical item on the M-60 route listing. Updated the October 11–November 1, 1967, December 15, 1967 and June 28, 1968 historical items on the I-69 route listing. Updated the August 28, 1940 historical item on the M-99 route listing. Updated the May 20, 1929, December 18–30, 1957, September 1958 and November 6–29, 1959 historical items and added a new October 31, 1958 historical item to the US-127 route listing. Added a new October 29, 1932 historical item to the Former M-130 route listing. Updated the September 9, 1964, November 14, 1966, November 30, 1967, November 1, 1968, and November 2–3, 1969 historical items and added new March 4, 1967 and July 28, 1967 historical items to the BL I-94 (Jackson) route listing. Updated the September 9, 1964, November 14, 1966, November 30, 1967, November 1, 1968, and November 2–3, 1969 historical items and added new March 4, 1967 and July 28, 1967 historical items to the BUS US-127 (Jackson) route listing.
May 19, 2024		Here's what's new or changed today: Added new April 26–July 19-September 17, 1958 and May 21-mid November, 1961 historical items to both the M-66 route listing and M-78 route listing. Added the Green Arrow Route marker to the "Other Route Markers—Current and Historic" section of the Michigan's Route Markers page. Added a brand new Mackinaw Scenic Shortway (1939–1942) page to Other Routes. Added a brand new Mackinaw Scenic Shortway (1939–1942) map to the Maps section.
May 9, 2024		Today's website updates include: Added a new August 23, 1960 historical item and updated the August 30, 1961, November 21, 1961 and December 22, 1961 historical items on the Historic US-16 route listing. Added a new August 23, 1960 historical item and updated the August 30, 1961 and November 21, 1961 historical items on the I-96 route listing. Updated the November 21, 1961 historical item on the I-196 route listing.
April 30, 2024		What's updated on the website: Added a "new style" route listing for M-142 and made the necessary changes to the Routes 140–159 page. This listing features completely expanded Notes and History sections as well as a brand-new route map! Added a "new style" route listing for M-143 and made the necessary changes to the Routes 140–159 page. This listing features completely expanded Notes and History sections as well as a brand-new route map! Added a new note on State Highway Dept proposals for the route of M-131 from 1960 to the Former M-131 route listing.
April 24, 2024		Here's what's new or changed today: Added a "new style" route listing for US-141 and made the necessary changes to the Routes 140–159 page. This listing features completely expanded Notes and History sections. Added an article on the Iron Mountain Bypass (1978-1999) project to the In Depth section, including a page with two related maps to the Maps section. Added a link to Adam Prince's article about university logos vs. highway signs to the Additional Information section of the Michigan's Route Markers page. Added new 1981 and 1978–1999 hsitorical items and a link to the new Iron Mountain Bypass page to the Notes section of the US-2 route listing. Added a new October 1, 1961 historical item to the M-28 route loilk Updated the October 1–November 15, 1961 historical item on the M-64 route listing. Fixed a random spattering of broken internal site links.
April 22, 2024		Today's website updates include: To correct some factual errors going around social media, a clarification was included above what was the first known Michigan Highways photo to go "semi-viral" online on the US-2 Is Not A Freeway, 2006 photo page. Added a link to a marvelous video by Alexis Dahl on the Houghton Hancock Bridge to the US-41 route listing and the M-26 route listing. Also added a link to the "Michigan's Bridges & Ferries" section of the Related Links page. Added a "new style" route listing for M-140 and made the necessary changes to the Routes 140–159 page. This listing features completely expanded Notes and History sections.
April 20, 2024		What's updated on the website: Added a "new style" route listing for M-139 and made the necessary changes to the Routes 120–139 page. This listing features completely expanded Notes and History sections. Added new information about a potential BUS US-12 route in downtown St Joseph from the 1950s to the Master List 1913–Present. Added a Waukonda-Klock Expressway, 1953 map to the Maps section. Also added links to it on the M-63 route listing and on the Klock Road Interchange animation page. Added a new December 24, 1953 historical item and updated the October 27–December 24, 1948 and January 25, 1954 historical item on the US-31 route listing. Added a lengthy new note to the M-72 route listing regarding history of the Acme–Kalkaska segment and it's tenure as a signed state route under county jurisdiction int he 1940s and 50s, as well as updating the June 15, 1947, September 16–Mid November 1958, Mid-June 1959, October 27, 1961–May 1, 1962, and Mid-November–December 13, 1966 historical items on that listing. Added new June 30, 1930 and October 29, 1932 historical items and updated the Fall 1933 historical item on the M-123 route listing. Updated the October 29, 1932 and Fall 1933 historical items and added a new June 30, 1930 historical item to the Former M-126 route listing. Added a new note to the Notes section on the M-185 route listing. Updated the Notes section and the August/September 1988 historical item on the M-222 route listing.
April 5, 2024		Here's what's new or changed today: Added a "new style" route listing for M-148 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section and an actual route map of M-148, too! Updated the October 29, 1932 historical item and added a new Mid-1933 historical item to the M-20 route listing (based on the new M-148 information added to the site.) Updated the quite large 1930-33 historical item on the US-31 route listing.
April 1, 2024		Unfortunately NOT an April Fool's Joke, the Capitol Loop through downtown Lansing was cancelled as a state trunkline route and turned back to municipal control on March 26 with related website updates including: Updated the Capitol Loop route listing to become the Former Capitol Loop route listing. Updated the applicable portions of the I-496 route listing. Updated the Master List 1913–Present as necessary. Related to the above, the route of M-143 also changes, necessitating updating the M-143 route listing. Updated the M-99 route listing to show its northern terminus no longer coincides with the western terminus of the new-former Capitol Loop. Also added a Will Carleton-related link to the Weblinks section.
March 22, 2024		Added a "new style" route listing for M-138 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and an actual route map of M-138, too!
March 21, 2024		Added a "new style" route listing for M-136 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and an actual route map of M-136, too!
March 20, 2024		Today's website updates include: Added a "new style" route listing for Former M-132 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and an historic route map. Added a "new style" route listing for Former M-135 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and two historic route maps. Fixed quite a few internal links pointing to the old location of the M-10 route listing. Added a new October 1–November 25, 1959 historical item to the Historic US-27 route listing. Updated the October 1–November 25, 1959 historical item on the US-31 route listing. Updated the October 1–November 25, 1959 historical item on the I-75 route listing. Updated the December 1, 1957 and November 22, 1960 historical items and added a new August 2, 1960 historical item to the Former M-98 route listing. Updated the January 30, 1967 historical item on the new Former M-131 route listing.
March 19, 2024		What's updated on the website: Added a "new style" route listing for Former M-131 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and an historic route map. Previously, the history for Former M-131 was intertwined with the History section on the US-131 route listing. Any M-131 historical items that occurred along the present-day route of US-131 have been retained in the US-131 route listing History section, while the new Former M-131 route listing History section includes occurrences from any portion of the historical route of M-131. Added a "new style" route listing for Former M-137 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and an historic route map. Added new May 1941, Late 1943 and 1944 historic items and updated the June 26, 1945 historic item on the Historic US-27 route listing. Updated the 1941–1945 historical item group on the M-93 route listing. Added a new April 21, 1943 historical item to the new Former M-131 route listing. Added a new February 18, 1986 historical item to the C-77 route listing. Updated the Early/Mid-1970s historical item on the C-81 route listing. Added new June 1971 historical items to the D-19 route listing and D-32 route listing.
March 18, 2024		Here's what's new or changed today: Added a new mid-April/June, 1939 historical item to the US-31 route listing. Addded new November 14, 1991 historical items to the M-37 route listing and M-44 route listing. Added a new late-August 1927 historical item and updated the 1931–33 historical item on the M-55 route listing. Added a new May 12, 1937 historical item to the M-88 route listing. Updated the December 1, 1938 and mid-April 1939 historical items on the M-113 route listing. Updated the December 1, 1938 and mid-April/June 1939 historical items on the US-131 route listing.
March 11–14, 2024		Today's website updates include: Completely overhauled the history section of the M-21 route listing (and other additions and improvements), adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in four-and-a-half times the amount of information! This "overhaul" has been ongoing for nearly a year with information being periodically added to the listing.) Added a "new style" route listing for Former M-210 and made the necessary changes to the Routes 200–229 page. This listing features a complete and expanded history section and an historic route map. Added new December 16, 1977 and November 21–December 20, 1979 historical items to the M-37 route listing and the M-44 route listing. Added a new December 14, 1977 historical item to the M-45 route listing. Added a information to the Notes section of the M-57 route listing on the long-proposed M-57-to-M-90 connection. Added a information to the Notes section of the M-90 route listing on the long-proposed M-57-to-M-90 connection. Added new July 5–November 10, 1977 historical item to the US-131 route listing.
March 4–10, 2024		What's updated on the website: Added a new detailed In-Depth article on M-24: Thumb Extension Saga (1962–1997) along with an accompanying map. Added a new August 23, 1979 historical item to the US-2 route listing. Completely overhauled the history section of the US-10 route listing (and other additions and improvements), adding copious amounts of "new" historical information on that route, including tons of new info going back to 1926! (Copious amounts... as in three times the amount of information! This "overhaul" has been ongoing for nearly a year with information being periodically added to the listing.) Updated the October 8, 1980 historical item on the M-21 route listing. Updated the January 13, 1971 and October 6, 1997 historical items and added new July–August 1989 and October 27, 1990 historical items to the M-24 route listing. Updated the October 16-21/November 6, 1980 historical item on the US-31 route listing. Updated a note in the Notes section and added a new 1960 historical item to the M-83 route listing. Updated a note in the Notes section and updated the c.1963, November 12, 1975 and November 26, 1975 historical items on the M-115 route listing. Added a new June 25, 1974 historical item to the BUS US-10 (Clare) route listing. Updated the September 29, 1978 and November 6, 1980 historical items on the BUS US-31 (Pentwater) route listing. Updated and expanded some of the text and information on the US-31 Freeway in Berrien County in-depth article. Updated the October 8, 1980 historical item on the I-69 route listing.
March 3, 2024		Here's what's new or changed today:   Finished the update on the "New!" or "Updated" graphics, sitewide. (See "February 29, 2024" below.) Verified ALL links on the Related Links page, updating a few which had changed. Added a historic route map to the Former M-98 route listing. Added a historic route map to the Historic US-102 route listing. Added a historic route map to the Former M-111 route listing. Updated the notes section of the BUS US-2 (Ironwood) route listing. Updated the July 1–August 15, 1960 historical item on the BL I-94 (Albion) route listing. As noted below, many broken or changed weblinks have been corrected across the entire website.
February 29, 2024		Today's website updates include:   Finally implemented a way to truly only mark those items on the site which are "New!" or "Updated" using the respective graphics. From now on, all items marked as "New!" or "Updated" will be those added or changed at some point in the past year. Older "New!" and "Updated" graphics have been removed from many pages on the site with the remainder being removed in the coming days. The process of removing all old "New!" and "Updated" graphics (see above) is resulting in the correction and updating of many weblinks throughout the site, both to external website as well as other pages in this site. Completely overhauled the history section of the M-27 route listing (and other additions and improvements), adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in four times the amount of information!) Finally fixed the image comparison slider function on the M-95: Republic Mine Reroute (1958) map page! Added a historic route map to the Former M-101 route listing. Added a historic route map to the Former M-107 route listing. Added a historic route map to the Former M-108 route listing. Added a historic route map to the Former M-110 route listing. Added a new 2006–07 historical item to the M-136 route listing.
February 23, 2024		What's updated on the website: Added a new October 26–November 29, 2022 historical item to the M-1 route listing. Updated some broken weblinks on the US-2 route listing. Updated several broken/changed external weblinks on the US-31 route listing. Removed the U.P. Hidden Coast Recreational Heritage Route listing from the US-41 route listing. Updated the southern terminus and length of the U.P. Hidden Coast Recreational Heritage Route on the Recreational Byways & Heritage Routes page.
February 21, 2024		Here's what's new or changed today: Updated the weblinks and added a few new ones to the Historic US-16 route listing. Updated the October 1–November 2, 1998 and November 2, 1998 historical items , added new January 25, 1963 and November 14, 2000 historical items, and added a map to the August 22, 1961 historical item on the M-20 route listing. Since so many updates were being made to it... Completely overhauled the history section of the M-20 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in 1.6 times the amount of information!) Also updated the weblinks section and added new links. Updated the May 2, 1927 historical item on the M-29 route listing. Added a new May 1, 1995 historical item to the M-37 route listing. Added new January 25, 1963 historical item and added a map to the August 22, 1961 historical item on the M-46 route listing. Added a new September 15, 1971 historical item to the M-120 route listing. Added a map to the August 22, 1961 historical item on the BUS US-31 (Muskegon) route listing.
February 14, 2024		Today's website updates include: Updated the mileages on the National Highway System page to the latest available numbers and fixed some external weblinks. Added a new April-May 1983 historical item to the M-32 route listing. Since so many updates were being made to it... Completely overhauled the history section of the M-32 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in nearly four times the amount of information!) Added a new April 22, 1963 historical item and updated the 1983 historical item on the M-68 route listing regarding the 1963–1983 extension of the route along US-31 to Petoskey. Added a note to the Notes section and a July 30, 1975 historical item to the I-96 route listing regarding a theory (one of hundreds) that Jimmy Hoffa was buried somewhere under that freeway.
February 13, 2024		Added a great deal of new and updated information to the Notes section, added new February 11, 1965 and 1964–65 historical items and revised the newly-added 1967–68 historical item on the M-32 route listing.
February 12, 2024		What's updated on the website: Added some new state trunkline route designations to the Master List 1913–Present: CONN M-59 – the segment of trunkline along Hall Rd/Wm P Rosso Hwy in Macomb Co between Gratiot Ave and I-94 from c.1968 to c.1998 (now part of mainline M-59) CONN I-94 – the former route of M-29 along Snover Rd in Harrison and Chesterfield Twps, Macomb Co, from 1971 to c.1998 (now obliterated) TO I-196 – connected completed segments of I-196 in Allegan and Ottawa Cos. Ran along US-31 and M-21 from 1967 to 1974. Added a new note regarding the potential M-14 freeway through the City of Detroit from the late-1960s and early-1970s to the M-14 route listing. Updated the note on a long-proposed realignment of M-32 and added a new 1967-68 historical item and updated the November 16, 1973 historical item on the M-32 route listing, including a corridor map showing plans for modernizing and realigning M-32 in Otsego and Montmorency Cos. Added a new Late Fall 1985 historical item to the M-37 route listing. Updated the December 23, 1985 historical item and corrected the date of the November 12, 1996 historical item on the M-46 route listing. Updated the text and corrected the date on the June 28, 1996 historical item on the M-50 route listing. Corrected the dates on the September 28, 1973 and June 30, 1994 historical items and added a new January 29, 1982 historical item to the M-66 route listing. Added new Late Fall 1985, December 23, 1985 and March 1, 1994 historical items to the M-82 route listing.
February 1, 2024		Here's what's new or changed today: Added new March 17, 1941 and November 1964 historical items to the M-8 route listing. Added a new Summer 1974 historical item to the US-10 route listing. Added a new Summer 1974 historical item to the I-94 route listing.
January 24, 2024		Today's website updates include: Added a new October 8, 1980 historical item to the M-21 route listing. Added a new October 8, 1980 historical item to the I-69 route listing.
January 23, 2024		What's updated on the website: Added a new Mid-2006 historical item to the US-2 route listing. Updated the text on the Historic US-27 overview listing with new information on MDOT's 1991 proposal for the route. Updated/overhauled the August 7–November 12, 1991 historical item on the Historic US-27 history listing with additional background information and a new US-27 "Gap Signing" Proposal Map.
January 22, 2024		Here's what's new or changed today: Added a new September 18, 1980 historical item to the Historic US-27 route listing. Updated the 1940 historical item and added a new 1941 historical item to the M-37 route listing. Completely overhauled the history section of the M-42 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in nearly three times the amount of information!) Updated the December 4, 2003 historical item on the M-55 route listing with the exact date of transfer. Added a new September 18, 1980 historical item to the I-69 route listing. Added a new August 5, 2015 historical item and updated the June 21, 2018 historical item on the US-131 route listing. Updated the August 5, 2015 and June 21, 2018 historical items on the unsigned OLD US-131 (Wexford) route listing.
January 21, 2024		Today's website updates include: Added a page on Act 51 of 1951, the primary funding and classification mechanism for Michigan's public highways, roads and streets. Added a picture to the 1977 historical item on the US-31 route listing. Completely overhauled the history section of the M-40 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in nearly five times the amount of information!) Updated the March 6, 1975 historical item and added an accompanying picture to the M-99 route listing. Added a new June 1, 1999 historical item to the BUS US-131 (Cadillac) route listing. Made quite a few updates, corrections and additions to the Belle Isle Roads route listing: Updated the route map Added a new note to the Notes section Updated the eastern terminus and length of Unsigned M-709 (Oakway Tr) Updated an existing note and added a new note to Unsigned M-709 (Oakway Tr) Separated the termini of Unsigned M-710 (Woodside Dr) into an Eastern Section and a Western Section as well as added route lengths for each section as well as an updated total route length Added thee new notes to Unsigned M-710 (Woodside Dr) Added new September 2012, Fall 2020 and June–July 2022 historical items Updated the November 12, 2013 historical item Corrected/updated many broken links in the Weblinks section
January 18, 2024		What's updated on the website: Updated the May 10, 1977 and March 15, 2001 historical items and added a new Jue 25, 1981 historical item to the M-1 route listing. Added a new note to the Notes section and updated the November 1977 historical item on the M-5 route listing. Added a new October 1, 1995 historical item to the M-8 route listing. Updated the March 15, 2001 historical item on the US-12 route listing. Added a photo of a remnant BS I-96 route marker still standing more than three decades after the route had been decommissioned to the Former BS I-96 (Detroit) route listing. Added a couple new notes to the Notes section, added new 1978-79 and September 24, 1992 historical items and updated the April 1, 2004 historical item on the unsigned OLD BS I-96 route listing.
January 17, 2024		Here's what's new or changed today: Added a "new style" route listing for Former BS I-96 (Detroit) and made the necessary changes to the Business Connections 96-496 page. This listing features a complete and expanded history section and an historic route map. Updated the August 15, 1990 historical item on the M-3 route listing. Updated the December 1, 1985 historical item on the BUS US-12 (Ypsilanti) route listing. Updated the April 1, 1996 historical item on the BL I-196 (South Haven) route listing. Updated the April 1, 1996 historical item on the A-2 route listing.
January 16, 2024		Today's website updates include: Updated the February 15–September 21, 1988 historical item on the US-2 route listing. Updated the February 9, 2004 historical item on the M-21 route listing. Updated the April 20, 1990 historical item on the M-24 route listing. Added a new August 15, 2018 historical item to the M-55 route listing. Updated the October 31, 1986 historical item on the Former M-76 route listing. Added new June 5, 1992 and February 21, 2007 historical items to the I-69 route listing.
January 12, 2024		What's updated on the website: Updated the 1930–31 and October 14, 1931 historical items on the US-31 route listing. Updated the November 7, 1931 historical item and added a new July 1, 1932 historical item to the M-60 route listing. Added new June 15, 1933 and September 19, 1935 historical items to the Historic US-112 route listing.
January 10, 2024		Here's what's new or changed today: Added a a new note to the Notes section and a new June 30, 1927 historical item to the US-12 route listing. Added a new 1924 historical item to the M-17 route listing. Updated the August 19, 1929 historical item and added a new September 10, 1930 historical item to the US-31 route listing. Added a new note to the Notes section of the M-51 route listing. Updated the December 2, 1930 historical item on the M-89 route listing. Added new September 30, 1930, Late November, 1930, and May 6, 1931 historical items to the Historic US-112 route listing.
December 28, 2023		Updated the June 30, 1994 historical item on the M-40 route listing.
December 26, 2023		Today's website updates include: Updated the November 9–17, 2000 historical items on the US-31 route listing and the OLD US-31 (Oceana) route listing. Updated the October 11, 2006 and October 17, 2007 historical items on the M-64 route listing. Updated the April 15, 1986 historical item on the I-75 route listing and BL I-75 (Gaylord) route listing. Added a new September 24, 1992 historical item on the US-131 route listing. Updated a note in the Notes section and updated the April 15, 1986 historical item on the BL I-75 (Gaylord) route listing.
December 25, 2023		MERRY CHRISTMAS! What's updated on the website: Updated the December 14, 1976 historical item on the BUS US-31 (Hart) route listing.
December 21, 2023		Here's what's new or changed today: Updated one of the notes in the Notes section and added a new October 8, 1990 historical item to the US-24 route listing. Updated the January 10, 1992 historical item with the correct date of transfer on the M-54 route listing. Added a new May 21, 2018 historical item to the M-59 route listing. Updated the January 15, 1965 historical item on the I-94 route listing. Added a new August 17, 1990 historical item to the M-102 route listing. Added a new January 25, 1990 historical item to the I-696 route listing.
December 17, 2023		Today's website updates include: Added a December 14, 1978 historical item to the M-1 route listing. Added an August 15, 1990 historical item to the M-3 route listing. Updated the November 1964, November 12, 1965, and November 21, 1977 historical items and added new March 31–June 30, 1965, Mid-1960s, and October 1, 1985 historical items to the M-14 route listing. Updated the November 2, 1965 historical item on the US-23 route listing. Updated broken weblinks on the I-75 route listing. Updated broken weblinks on the I-94 route listing. Added a Mid-1960s historical item to the Former M-114 route listing. Updated broken weblinks on the I-296 route listing. Added a new note and updated the November 2, 1962, November 1964, November 12, 1965 historical items on the BUS US-23 (Ann Arbor) route listing. Added a new note and updated the c.1960–61, November 2, 1962, November 12, 1965 historical items on the BL I-94 (Ann Arbor) route listing.
December 14, 2023		What's updated on the website: Added a new August 1, 1980 historical item to the US-10 route listing. Updated the October 31, 1979 historical item and added a new March 3, 1989 historical item to the M-14 route listing. Added a new 1957 historical item to the M-58 route listing. Added a new September 21, 1988 historical item to the I-96 route listing. Added new November 16, 1981 and April 4, 1983 historical items to the M-150 route listing. Added a new January 15, 1985 historical item to the M-153 route listing. Updated the January 4–July 31, 1979 historical item on the I-696 route listing. Updated the October 31, 1979 historical item and added a new March 3, 1989 historical item to the OLD M-14 route listing on the Unsigned Trunklines page.
December 11, 2023		Here's what's new or changed today: Completely overhauled the history section of the M-36 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1915! (Copious amounts... as in nearly five times the amount of information!) Updated the October 1, 1998 historical item and added November 2, 1998, July 8, 1999 and March 23, 1992 historical items to the M-20 route listing. Updated the February 18–23/April 3, 1980 historical item on the M-28 route listing. Added a new Fall 2023 historical item to the BUS US-31 (Pentwater) route listing.
December 8, 2023		Today's website updates include: Updated the February 4, 1998 historical item on the US-10 route listing. Added a new June 28, 1996 historical item and updated the September 9, 1999 historical item on the BUS M-28 route listing. Updated the December 1991, March 20, 1997 and August 5, 2003 historical items and added a new January 10, 1992 historical item to the US-31 route listing. Updated the April 17–November 1, 1995 historical item on the M-116 route listing.
December 7, 2023		What's updated on the website: Updated the December 19, 2002 historical item on the M-53 route listing. Updated the October 1, 1998 historical item on the M-94 route listing. Added a new 1953 historical item and updated the November 5, 1991 historical item on the M-97 route listing. Added a new June 28, 1996 historical item to the Former M-110 route listing. Added a new March 20, 1997 historical item to the Former M-114 route listing.
December 4, 2023		Here's what's new or changed today: Added a December 7, 1981 historical item to the Historic US-27 route listing. Updated the September 26, 1991 historical item with the correct date of establishment on the M-53 route listing. Added a new April–November 1979 historical item and updated the June 24, 1957 and June 18, 1980 historical items, as well as updated a lengthy note on the proposed-but-never-completed westerly extension, on the M-62 route listing. Updated the June 24, 1957 historical item on the M-140 route listing.
December 3, 2023		Today's website updates include: Updated the January 2 or February 2, 1989 historical item with the conflicting date of discontinued maintenance on the M-13 route listing. Updated the March 30–June 27, 1973 historical item with the correct date of transfer on both the M-37 route listing and the M-43 route listing. Updated the June 21, 1984 historical items on both the M-37 route listing and the BL I-94 (Battle Creek) route listing. Updated the December 16, 1969 historical item with the correct date of transfer on the M-83 route listing. Added a new November 1971 historical item to the A-2 route listing.
November 28, 2023		What's updated on the website: Added a new November 19, 1926 historical item to the M-13 route listing. Updated the June 28–September 17, 1996 historical item on the M-66 route listing. Updated the June 28–September 17, 1996 historical item on the M-72 route listing.
November 27, 2023		Here's what's new or changed today: Updated the January 9, 1989, June 30, 1993 and February 1, 1995 historical items and added a new February 2, 2000 historical item to the M-21 route listing. Updated the December 1, 1961 historical item on the Historic US-27 route listing with new information on the "TO I-75" vs US-27 designation of the Waters–Indian River segment. Updated the November 5, 1953 historical item on the M-60 route listing. Updated the June 30, 1994 historical item with the correct date of relinquishment on the I-75 route listing. Updated the June 30, 1995 historical item with the correct date of transfer on the M-109 route listing. Updated the June 30, 1995 historical item with the correct date of transfer and updated the final route length on the Former M-209 route listing. Added a new note to the Notes section and a snippet of a historical State Highway Dept map to the BL I-69 (Coldwater) route listing. Updated the January 3, 1996 historical item with the correct date of transfer on the BUS US-223 route listing.
November 23, 2023		Happy Thanksgiving 2023! Today's website updates include: Added a "new style" route listing for Former M-147 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section and an historic route map. Updated the November 19, 1973 and April 29, 1991 historical items on the M-43 route listing. Updated the M-50 route listing with a new February 6–March 26, 2018 historical item. Updated the BL I-94 (Jackson) route listing with a new February 6–March 26, 2018 historical item. Updated the BUS US-127 (Jackson) route listing with a new February 6–March 26, 2018 historical item. Added a new Sprinkle Rd route listing to the Unsigned Trunklines page.
November 21, 2023		What's updated on the website: Updated the 1998 and December 19, 2000 historical items on the US-2 route listing. Added a new October 15, 1959 historical item to the US-31 route listing. Added a new December 19, 1978 historical item to the M-54 route listing. Added a new November 1972–October 24, 1973 historical item to the M-84 route listing. Added a new note to the Notes section of the M-149 route listing about the history of Palms Book State Park, the primary reason for the existence of the route. Added new 2013 and October 19, 2019 historical items to the M-189 route listing. After initially appearing along newly-designated M-553 in the late-1990s, "wide" state highway ("M-numbered route") markers have begun to be slowly rolled out on other three-digit routes twenty-plus years later. The following have been updated with additional notes in their Notes sections and with the with representations of the wider route markers that are now posted along the routes in the field: M-124 route listing M-186 route listing M-189 route listing M-199 route listing Added or updated notes on some of Michigan's "directionally challenged" routes: Updated the Notes section of the M-25 route listing. Updated the Notes section of the M-62 route listing. Updated the Notes section of the M-64 route listing. Updated the Notes section of the M-75 route listing. Updated the Notes section of the M-94 route listing. Added a new note to the Notes section of the M-123 route listing.
November 19, 2023		Here's what's new or changed today: Updated the December 9, 1983 historical item and added a February 1, 1988 historical item to the M-20 route listing. Updated the December 6, 1954 historical item and added new March 30, 1970, October 18, 1971 and June 28, 1996 historical items to the M-21 route listing. Added new April 3, 1980 and November 17, 2023 historical items to the US-31 route listing Added a new December 23, 1985 historical item to the M-46 route listing. Updated the December 6, 1954 and October 18, 1971 historical items on the Former BUS US-31 (Holland) route listing. Added a new November 17, 2023 historical item to the Former OLD US-31 (Berrien) route listing. Added a new April 3, 1980 historical item to the OLD US-31 (Oceana) route listing.
November 17, 2023		Today's website updates include: Added new December 21, 1978 and 1981–1984 historical items and updated the November 1, 1968 historical item on the M-57 route listing. Updated the northern terminus, updated the notes in the Notes section, and updated the weblinks and added two new weblinks to the BUS M-32 Route Listing. Also added a snazzy new BUS M-32 route map to the listing as well.
November 16, 2023		What's updated on the website: Updated the 1979–1982 and 1988–1990 historical items and updated and combined the September 2006 and October 4, 2006 historical items on the M-26 route listing. Also added a new weblink to a historical progression of photos for one portion of the route. Updated the recently-added June 30–July 14, 1993 historical item on the US-41 route listing. Added a March 6–October 28, 1970 historical item to the M-44 route listing. Added a new September 24, 1992 historical item and updated the 1994 historical item on the M-45 route listing. Updated the May 8–June 17, 1975 and December 23, 1986 historical items and added a new July 15, 1964 historical item as well as revised a note in the Notes section of the M-91 route listing. Updated the September 30, 1981 and December 21, 1984 historical items on the US-131 route listing. Made a few minor adjustments and updated several broken weblinks on the M-143 route listing.
November 15, 2023		Here's what's new or changed today: Updated the September 18, 2000 historical item on the Historic US-27 route listing. Updated the November 16, 1973 historical item and added a new July 29, 1982 historical item to the M-32 route listing. Added a new Early 1967/June–August 22, 1969 historical item to the M-44 route listing. Corrected the date on the October 18, 1971 historical item on the Former M-76 route listing. Added new December 21, 1984 and December 23, 1985 historical items to the M-91 route listing. Added a new December 16, 2002 historical item to the US-127 route listing. Updated the November 1, 1968 and October 29, 1969 historical items on the US-131 route listing. Corrected the date on the June 29, 2020 historical item on the Former M-137 route listing. Added a December 21, 1984 historical item and a new note in the Notes section to the CONN M-44 route listing. Corrected the date on the September 10, 2004 historical item on the BUS US-127 (Alma) route listing. Added a new December 1954 historical item to the Former BUS US-131 (Grand Rapids) route listing.
November 13, 2023		Today's website updates include: Completely overhauled the history section of the M-22 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1919! (Copious amounts... as in doubled the amount of information!) Also updated the Notes section, verified/corrected all weblinks, and added a few new weblinks to that section. Added a new August 23, 1949 and November 11, 1952 historical items and updated the November 10, 1949 and November 6, 1953 historical items on the US-31 route listing. Added a new September 28, 1979 historical item to the M-32 route listing. Added a new August 23, 1949, November 11, 1952 and November 6, 1952 historical items and updated the November 10, 1949 historical item on the M-37 route listing. Added a new November 11, 1952 historical item and updated the November 6, 1952 historical item on the M-72 route listing. Updated the October 15–22, 1970 historical items on the I-75 route listing and the Former M-76 route listing. Updated the July 1, 1970 historical item on the M-204 route listing.
November 9, 2023		What's updated on the website: In October, a new "M-55 Recreational Scenic Byway" is proposed to encompass the entirety of M-55, with the corresponding updates made: Updated the Notes section, added an October 2023 historical item and added a Pure Michigan Byways section to the M-55 route listing. Added the proposed route to the Pure Michigan Byways page. Added the proposed route to the Scenic Byways page and the Recreational Byways page. Added a new October/November 1957 historical item to the US-131 route listing. Added a "new style" route listing for Former M-196 and made the necessary changes to the Routes 180–199 page. This listing features a complete and expanded history section and an historic route map. Finally(!) found the date of commissioning for the M-201 route designation through Northport and updated the Notes section and all of the historical items on the M-201 route listing.
November 7, 2023		Here's what's new or changed today: Added new December 21, 1957, June 30–July 3, 1958, August 18–September 16,1958 and July 8, 1959 historical items to the US-23 route listing. Added new late-July 1956 and June 17, 1958 historical items to the M-44 route listing. Added a new November 10, 1952 historical item to the M-66 route listing. Added a new November 10, 1952 historical item to the M-88 route listing. Added new late-July 1956, November 21, 1956, July 29, 1957, June 30, 1958, and July 3–7, 1958 historical items and updated the November 10, 1952, mid-June 1957, and September 8–15, 1966 historical items on the US-131 route listing. Added a new note to both the US-131 route listing and the Unsigned I-296 route listing regarding an initial designation for part of the route in Grand Rapids. Updated the (assumedly-) never-used M-133 entry on the Master List 1913–Present with new information on the potentiality that it once existed along Wilson Ave in Grandville. Updated the former M-196 entry on the Master List 1913–Present with new information its existence and possible cancellation timeframe.
November 1, 2023		Today's website updates include: Updated the November 1, 1984 and February 15–September 21, 1988 historical items on the US-2 route listing. Updated the October 31, 1985 historical item on the Former M-76 route listing. Updated the November 1, 1984 historical item on the M-94 route listing. Updated the October 23, 1986 and June 30, 1993 historical items on the US-131 route listing. Updated the October 31, 1985 historical item on the OLD-76 route listing.
October 31, 2023		What's updated on the website: Added a new February 15–September 21, 1988 historical item to, and updated the external weblinks on the US-2 route listing. Added new July 18, 1975 and February 18–April 3, 1981 historical items to the M-28 route listing. Added a new 1985–1986 historical item and updated the May 25, 1989 historical item on the M-35 route listing. Updated several weblinks on the M-64 route listing.
October 23, 2023		Here's what's new or changed today: Updated the October 27, 1967, 1978–1982 and October 8, 1990 historical items and added a new December 15, 1971 historical item (with links to historic images) to the M-26 route listing. Added new December 2, 1929, December 15, 1971 (with links to historic images), July 29, 1976 and June 30, 1993 historical item to the US-41 route listing. Updated external weblinks on both the M-26 route listing and the US-41 route listing. Added a new former route designation, albeit likely only an internal one, for SPUR US-41 to the Master List 1913–Present.
October 20, 2023		Today's website updates include: Updated the August 30, 1977 historical item and added a new January 4, 1993 historical item to the M-18 route listing. Added new June 22, 1989 and August 15, 1990 historical items and updated the June 1–14, 1988, June 30, 1993, June 30, 1995, June 28, 1996 and June 26, 2002 historical items on the M-54 route listing. Added a new February 6, 2004 historical item to the Former M-56 route listing. Added a new June 28, 1996 historical item to the M-78 route listing. Updated the October 1999, June 30, 2000, and October 1, 2003 historical items on the M-121 route listing.
October 19, 2023		What's updated on the website: Updated the November 3, 1987 and June 28, 1996 historical items on the Historic US-27 route listing. Added a new February 1, 1995 historical item and fixed some broken weblinks on the M-35 route listing. Added a new November 23, 1987 historical item to the M-43 route listing. Updated the June 30, 1993 historical item on the M-61 route listing. Added a new July 1, 1988 historical item and updated the November 23, 1987 historical item on the I-69 route listing. Updated the October 1, 1991 historical item and fixed some broken weblinks on the M-69 route listing. Updated the October 1, 1991 historical item and fixed some broken weblinks on the M-95 route listing. Updated the January 12, 1993 historical item on the M-100 route listing. Corrected the date on the January 17, 1988 historical item on the M-121 route listing. Updated the February 19, 1985 historical item on the M-183 route listing. Added a new July 1, 1988 historical item and updated the November 23, 1987 historical item on the BL I-69 (Lansing) route listing. Updated the June 28, 1996 historical item on the BUS US-127 (St Johns) route listing. Added new August 2, 1994 historical items to the BUS US-127 (Clare) route listing and the BUS US-10 (Clare) route listing.
October 18, 2023		Here's what's new or changed today: Updated the November 12, 1960 historical item on the US-2 route listing. Added new November 16, 1961, October 31–November 5, 1962 December 5, 1962, and July 23, 1963 historical items to the US-2 route listing. Added a July 23, 1963 historical item to the I-75 route listing. Updated the June 30, 1995 historical item on the M-80 route listing. Added two new notes to the Notes section, updated the July 19–September 22, 1988 historical item, added a new March 3, 1989 historical item, and updated broken weblinks on the M-134 route listing. Updated broken weblinks and some verbiage on the BS I-75 (Sault Ste Marie) route listing.
October 17, 2023		Today's website updates include: Added a new August 15, 1987 historical item and updated the January 3, 1994 and April 1998 historical items on the US-12 route listing. Added new 1982–1985 and June 30, 1993 historical items and updated the August 10, 1979, January 24, 1980, and August 16, 1987 historical items on the US-31 route listing. Also separated the August 10, 1979 and January 24, 1980 historical items as well as the August 5, 2003 and August 27, 2003 historical items on the US-31 route listing. Updated the introductory paragraph and updated the September 30, 1963 and April 1998 historical items on the Historic US-33 route listing. Updated the May 5, 1998 and May 4, 2005 historical items on the M-37 route listing. Added a new August 17, 1990 historical item to the M-60 route listing. Added new May 15, 1987 and March 28, 1988 historical items to the M-63 route listing. Updated the May 4, 2005 historical item on the M-96 route listing. Upated the Notes section of the M-140 route listing to reflect its proposed-but-never-implemented extension into downtown Niles in the mid-1980s. Revamped most of the Notes section and added new July 1986, August 1987, January 5, 1990 and January 3, 1994 historical items to the Former BUS US-12 (Niles) route listing. Revamped much of the Notes section and updated ALL of the historical items on the Former BUS US-31 (Niles) route listing. Updated and augmented the Notes section, updated the August 7, 1981 historical item and added a new November 16, 1983 historical item on the BS I-75 (Sault Ste Marie) route listing. Added a May 5, 1998 historical item and updated the May 4, 2005 historical item on the BL I-94 (Battle Creek) route listing. Updated the Late 1928 historical item on the Historic US-102 route listing.
October 13, 2023		What's updated on the website: Added a December 1, 1995 historical item and updated the August 1987 historical item with a more precise timeframe on the US-31 route listing. Added a new September 1, 1987 historical item to the M-37 route listing. Updated the July 15, 1931 and November 16, 1987 historical items on the Former M-168 route listing. Updated the Notes section and the July 15, 1931, November 16, 1987 and June–October 2010 historical items and added new April 1982 and December 18, 1985 historical items to the Former M-168 route listing. Also verified and updated all links—basically, nearly a complete overhaul of the listing. Corrected the date on the October 1, 1998 historical item on the M-179 route listing. Updated the date on the September 9, 2004 historical item on the Former BUS US-31 (Holland) route listing. Updated the August 1987 historical item with a more precise timeframe on the Former BUS US-31 (Niles) route listing. Added June 16, 1976, November 30, 1976–March 31, 1977, and April 1, 1986 historical items to the BL I-94 (Benton Harbor–St Joseph) route listing. Updated the September 14, 1977 and June 8, 1978 historical items on the BL I-94 (Benton Harbor–St Joseph) route listing.
October 11, 2023		Here's what's new or changed today: Based on new historical information received from MDOT and via contemporary news accounts of the I-96/I-196 "route swap" in 1963–64, the following site changes were made: Added August 31, 1960, September 30, 1961, and January 6–10, 1964 historical items to the US-31 route listing. Updated the October 21, 1963, December 16, 1963, and July 31, 1964 historical items on the US-31 route listing. Added new December 16, 1964, August 30, 1968, and December 4, 1971 historical items to the M-43 route listing. Updated the December 16, 1963 historical item on the M-89 route listing. Updated the September 30, 1963, and October 21, 1963 historical items on the I-96 route listing. Added new December 16, 1963, and January 6–10, 1964 historical items to the I-96 route listing. Added new August 30, 1963, December 16, 1963, January 6–10, 1964, and December 4, 1971 historical items and updated the December 15, 1972 historical item on the M-140 route listing. Updated the 1958–59, September 30, 1963, October 21, 1963, December 16, 1963 and July 31, 1964 historical items on the I-196 route listing. Added new August 31, 1960, December 12, 1962, August 30, 1963, September 30, 1963, and January 6–10, 1964 historical items to the I-196 route listing. Updated the Notes section and added new August 30, 1963, October 21, 1963, January 6–10, 1964, August 30, 1968, 1970–71, and December 4, 1971 historical items to the BL I-196 (South Haven) route listing. Updated the December 16, 1963, August 30, 1968, December 15, 1972, and March 5–April 1, 1996 historical items on the BL I-196 (South Haven) route listing. Updated the December 4, 1971 and March 5–April 1, 1996 historical items on the A-2 route listing. Harmonized the shared historical items between the I-96 route listing and the Historic US-16 route listing, including: Updated the November 10–28, 1962 historical item on the Historic US-16 route listing. Added September 16, 1958 and May 2, 1960 historical items to the Historic US-16 route listing. Added a September 18, 1961 historical item to the I-96 route listing.
October 6, 2023		Updated the January 28–September 5, 1942 historical item on the US-31 route listing.
October 3, 2023		Today's website updates include: Updated the December 1991, October 23–November 20, 1992 historical items on the US-31 route listing. Updated the November 20, 1992, October 23, 2007 and March 10, 2010 historical items, the length of the former route, and information in the "Notes" on the Former BUS US-31 (Niles) route listing.
October 2, 2023		What's updated on the website: Added a new 1957 historical item to the M-20 route listing. Updated the December 16, 1959 and December 8, 1960 historical items on the I-94 route listing and the US-12 route listing. Added new November 28, 1960 and January 3, 1961 historical items to the I-94 route listing. Updated the January 8, 1998 historical item on the M-116 route listing. Added new May–June 1935, 1957 and Fall 1959 historical items to the BUS US-10 (Midland) route listing. Updated the November 15, 1960 historical item on the BUS US-10 (Midland) route listing.
September 29, 2023		Here's what's new or changed today: Added a listing for a never-used "M-22A" route designation to the Master List 1913–Present based on a 1950s Leelanau Co tourist map. There has never been an "M-22A"-designated highway in Michigan and the map is in error. Updated the 1948 historical item on the Former M-209 route listing. Rejiggered the OLD US-131 (Mecosta) and Former OLD US-131 (Osceola) route listings: OLD US-131 (Mecosta) is now a two-segment listing for both portions of OLD US-131 in Mecosta Co. OLD US-131 (Mecosta–Osceola) is now just Former OLD US-131 (Osceola) due to it being jurisdictionally transferred back to the County. Added notes to each of the above listings to explain the changes. Updated the December 9, 1983 historical item on the BUS US-131 (Big Rapids) Route listing.
September 25, 2023		Updated the Fall 1968, December 9, 1983 and October 23, 1986 historical items on the US-131 route listing.
September 24, 2023		Today's website updates include: Added new July 12–August 3, 1955, Fall 1959, July 29, 1960, November 15, 1960, July 1, 1963 and 1988–89 historical items to the M-20 route listing. Updated the 1958 historical item to the M-20 route listing. Updated the April/May 1940 and July 13–August 28, 1940 historical items on the M-50 route listing. Updated the July 13–August 28, 1940 historical item on the M-99 route listing. Updated the 1988–89 historical item to the BUS US-10 (Midland) route listing.
September 6, 2023		Added a second route map to the Former M-122 route listing.
September 3, 2023		What's updated on the website: Updated the M-30 route listing to show it is now signed all the way to its new southern terminus at M-46. Added a route map to the M-201 route listing. Added a route map to the M-204 route listing.
August 30, 2023		Here's what's new or changed today: Added a route map to the M-109 route listing. Added a route map to the Former M-209 route listing.
August 20, 2023		Today's website updates include: Added a links to historic photographs to the M-56 route listing. Added a link to a photograph to the Former M-76 route listing. Added a link to an historic photograph to the Former M-130 route listing. Added a link to an historic photograph to the BS I-75 (Bay City) route listing. Added links to photographs to the OLD-76 route listing.
August 8, 2023		Here's what's updated on the website: Updated the August 23, 1944 historical items on the M-17 route listing, the Historic US-112 route listing and the Early I-94 listing. Updated the March 14, 1941 historical items on the M-24 route listing and M-85 route listing. Added new April 18, 1942 historical items to the M-24 route listing and M-85 route listing. Updated the April 18, 1942 historical items on the M-15 route listing and M-38 route listing.
August 3, 2023		Updated the October 29, 1958 and December 5, 1960 historical items on the M-20 route listing.
August 2, 2023		Updated the December 5–8, 1960 historical item and added a new February 15, 1961 historical item to the M-81 route listing.
August 1, 2023		Here's what's new or changed today: Added Late October 1957 and February 2, 1989 historical items to the M-13 route listing. Updated the July 24, 1953–January 4 1954 and the November 17–25, 1961 historical items and added a new October 27, 1961 hitorical item to the US-23 route listing. Added a new October 27, 1961 historical item and updated the November 17–25, 1961 historical item on the I-75 route listing.
July 27, 2023		HHTPS has arrived! Michigan Highways is now served out using the HTTPS encrypted protocol. If you link to the site, feel free to change links to https://www.michiganhighways.org, although it's not necessary as the site will be automatically forwarding HTTP requests to HTTPS.
July 26, 2023		Today's website updates include: Added a new November 4, 1949 historical item and updated the Late 1953/January 4, 1954 historical item on the US-23 route listing. Fixed a broken link in the Weblinks section of the Former M-112 route listing. Fixed a broken link to the Mackinac Island Tourism Bureau on the M-185 route listing. Fixed a broken link to the M-72 listing in the Leelanau Scenic Heritage Route section of the Scenic Byways page. Added additional information regarding the Proposed-But-Never-Implemented BUS US-10 route through Saginaw to the Master List 1913–Present. Fixed a broken link to the M-17 listing on the Early I-94 page. Fixed a several broken links to various listings on the Unsigned Trunklines page.
July 8, 2023		Updated the c.1930 historical item and added a new November 22, 1966 historical item to the M-47 route listing.
July 7, 2023		Here's what's updated on the website: Updated the December 5, 1960/January 3, 1961 historical item on the US-23 route listing. Updated the December 5–8, 1960 historical item on the M-47 route listing. Updated the December 5, 1960/January 3, 1961 historical item on the I-75 route listing. Updated the December 5–8, 1960 historical item on the M-247 route listing.
June 28, 2023		Here's what's new or changed today: Updated the May 1935 historical items on the M-15 route listing and M-24 route listing. Added a May 1935 historical item to the M-25 route listing. Added a new Note to the BUS US-31 (Hart) route listing Notes section. Updated several notes in the Notes section and added a May 24, 2023 historical item to the Former BUS US-31 (Pentwater) route listing. Made several updates to the notes in the Notes section of the BS I-196 (Wyoming) route listing and added a set of two historic MDOT maps showing the route as a Business Spur. Added a snippet from the c.1995 Kent County General Highway Map published by MDOT to the I-296 maps page. Updated the notes in the Notes section and added a May 18, 2023 historical item to the OLD US-31BR (Pentwater) route listing.
June 27, 2023		Today's website updates include: Added a new historical state highway tidbit in a "Highway Tanget" callout box on page 3 of The History of Roads in Michigan. Added a new November 16–21, 1936 historical item and updated the August 30, 1937 historical item on the Historic US-27 route listing.
June 9, 2023		Added a September 7, 1928 historical item to the M-50 route listing.
May 15–18, 2023		Here's what's updated on the website: Updated the mid-May 1933 historical item and added new February 24, 1933, October 27, 1933, and late-February 1934 historical items the M-29 route listing. Updated the November 23, 1948 historical item on the M-65 route listing. Added a new July 2, 1948 historical item to the M-90 route listing.
May 8, 2023		Updated many route maps, including: Added the M-30 extension to these route maps: US-23, M-47, M-52, M-61, I-75, and US-127. Removed BUS US-31 (Pentwater) from these route maps: M-82, M-116, M-120, B-15, B-23, B-31, B-35, and B-86. Updated the completed US-31 freeway on these route maps: M-60, M-62, M-139, M-140, and I-196. Added the newly-verified "Ogemaw County Routes" to these route maps: M-33, M-55, M-61, M-65, M-72, I-75 and US-127. Also added a 2023 map to the The Ogemaw Routes Maps as well as to the bottom of the main The Ogemaw Routes page.
May 4, 2023		May the Fourth be With You... and here's what's new or changed today: Due to the jurisdictional transfer of BUS US-31 through Pentwater, the following pages were updated: Former BUS US-31 (Pentwater) route listing – converted to a former state trunkline route listing US-31 route listing OLD US-31BR (Pentwater) route listing –  new listing created Lake Michigan Circle Tour – route at Pentwater updated West Michigan Pike Historic Byway – route at Pentwater updated B-15 route listing – as the route now ends at OLD US-31BR And removed BUS US-31 (Pentwater) from the route maps for: US-10, M-20, US-31 Also, updated the status of Napier Ave as an unsigned trunkline route on the following: US-31 route listing US-31 Freeway in Berrien County in-depth article OLD US-31 (Berrien) route listing – new listing created Additionally updated the M-30 route map with the M-30 extension as well as maps for: US-10, M-18, M-20, M-46
April 27, 2023		Today's website updates include: Updated the M-60A listing on the Master List 1913–Present. Added a July 10, 1933 historical item to the M-154 route listing.
April 26, 2023		Made the following updates based on the jurisdictional transfer of 0.396 mile of M-3 in downtown Detroit today: Updated the southern terminus and route length as well as added a new April 26, 2023 historical item to the M-3 route listing. Also updated the Winter 1974 historical item on the M-3 route listing. Updated the southern terminus on the M-10 route listing. Updated the western terminus on the BS I-375 route listing. Updated the BS I-375 route map. Uploaded a new revision of the Downtown Detroit Trunklines map showing the above changes.
April 24, 2023		Here's what's updated on the website: Added a new rendition of the handmade, wooden M-185 route marker and updated the Notes section regarding the markers to the M-185 route listing. Updated the same M-185 wooden route marker image on the Route Markers page as well. Updated the BS I-196 (Wyoming) route listing to show that some staffers within MDOT chose to sign it as a Business Loop at some point in the early 2000s. Updated the Michigan Intercounty Highway Zone System map on the Intercounty Highways page.
April 21, 2023		Here's what's new or changed today: Updated the ferry rates for Champion's Auto Ferry on the M-154 route listing. Updated the total proposed cost of the I-375 "Modernization" Project and added a new MDOT project website link to the I-375 route listing. Added a route map to the BS I-375 route listing.
April 16, 2023		Today's website updates include: Added a note regarding a 1982–83 proposed route truncation to the M-20 route listing. Update the Historical Overview section regarding the 1982–83 proposed route truncation and added an October 1982–March 1983 historical item to the Historic US-33 route listing. Added a note regarding a 1982–83 proposed route truncation of concurrent M-20 to the BUS US-10 (Midland) route listing. Added a note regarding a 1982–83 proposed route decommissioning to the BUS US-31 (Holland) route listing.
April 15, 2023		Here's what's updated on the website: Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-27 route listing. Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-33 route listing. Added a note regarding a 1982–83 proposed route truncation to the M-43 route listing. Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-46 route listing. Added a note regarding a 1982–83 proposed route truncation of concurrent M-43 to the M-52 route listing. Added a note regarding a 1982–83 proposed route truncation to the M-54 route listing. Added a note regarding a 1982–83 proposed route truncation of concurrent M-54 to the M-83 route listing.
April 14, 2023		Here's what's new or changed today: Moved some items from the Notes section to create new September 3 1949, March 9, 1950, and September 18, 1952 historical items on the US-2 route listing. Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the US-2 route listing. Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the US-10 route listing. Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-28 route listing. Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item and updated the 1974 historical item on the M-32 route listing. Updated the 1974 historical item and added a new 1982–83 historical item to the M-66 route listing. Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-68 route listing. Added a new note regarding a 1982–83 proposed route elimination and an October 1982–March 1983 historical item to the BUS US-127 (Jackson) route listing.
March 21–27, 2023		Website updates during this timeframe include: Updated the August 20, 1930, December 2, 1930, November 12, 1933, November 7, 1949, November 3–30, 1950, July 19, 1951, July 12–August 3, 1955, and November 18, 1955 historical items and added new July 10, 1931 and December 6, 1954 historical items to the US-31 route listing. Added a May 19, 1931 historical item detailing the Act 131 of 1931 (Dykstra Act) additions to US-31 to the US-31 route listing. Added a handy reference map to the November 18, 1955 historical item on the US-31 route listing. Updated the August 3, 1955 historical item and added new October 24, 1955 and August 15, 1959 historical items to the Former BUS US-31 (Holland) route listing. Updated the July 12–August 3, 1955 historical item on the BUS US-31 (Pentwater) route listing.
March 20, 2023		Here's what's updated on the website: Updated several external links/URLs on the Forest Highways page. Updated external links/URLs and added a few new weblinks on the Forest Highways route listings page. Updated several external links/URLs on the Great Lakes Circle Tours page.
March 17, 2023		Here's what's new or changed today: Added a route map to the US-8 route listing. Updated the notes for the "H-16" route listing. Updated the notes for the FFH-16 route listing. Biggest of all, though, is over the past couple weeks, route maps have been added for the rest of the Intercounty Highways which needed them (which was nearly all of them). An asterisk (*) indicates a newly regenerated map replacing an older map for that route. A-2 map* A-37 map A-42 map A-45 map B-15 map B-23 map B-31 map B-35 map B-72 map B-86 map B-96 map C-38 map C-42 map C-48 map C-56 map C-58 map C-64 map C-65 map C-66 map C-71 map C-73 map C-77 map C-81 map D-19 map D-32 map F-01 map F-05 map F-18 map F-19 map F-21 map F-26 map F-28 map F-30 map F-32 map F-38 map F-41 map F-42 map F-44 map F-97 map G-08 map G-12 map G-18 map Fmr. G-38 map Fmr. G-67 map G-69 map H-01(S) map H-01(N) map H-03 map H-05 map Uns. H-09 map H-11 map H-15 map H-33 map H-42 map H-44(W) map H-44(E) map H-52 map H-57 map H-58 map Uns. H-60 map
March 8, 2023		Today's website updates include: Updated the August 15, 1928, October 30–December 18, 1928 and August 28, 1930 historical items on the M-21 route listing. Added new May 2, 1928, June 6, 1929, November 29, 1929, October 8, 1958 and Late 1977 historical items to the M-21 route listing. Updated the description of "M-21 STUB" in the Master List 1913–Present to more accurately represent the situation with the route.
February 25, 2023		Here's what's updated on the website: Updated external links on the M-93 route listing. Added two brand new "Related Route" listings to the Intercounty Highways listings: OLD-27 route listing (includes route map) OLD-76 route listing (includes route map) Updated the Master List 1913–Present with entries for the above two routes. Added an OLD-27 Photos page to both the Photos section and the OLD-27 route listing.
February 23, 2023		Updated the route mileages on every single route listing on the three Intercounty Highway route pages (to the thousandth of a mile, matching the route lengths on the state trunkline route listings) as well as made a few other adjustments on the pages as necessary: Intercounty Highway Routes A-2 – C-81 Intercounty Highway Routes D-19 – H-15 Intercounty Highway Routes H-16 – H-63
February 22, 2023		Here's what's new or changed today: Added a new Intercounty Highways: The Ogemaw Routes page, inclduing a corresponding The Ogemaw Routes Maps page. Added a short paragraph referencing the above "Ogemaw Routes" to the Intercounty Highways page. Updated the entries for the various "Ogemaw Co Routes" in the Intercounty Routes section of the Master List 1913–Present based on new field research.. Added a note to the "Notes" section of the D-19 route listing. Updated the weblinks and added new links to the D-32 route listing. Completely overhauled the F-18 route listing including new termini, length, notes, history, counties and weblinks. Added a brand new F-19 route listing based on recent fieldchecking (see "Ogemaw Routes") Added a brand new F-26 route listing based on recent fieldchecking (see "Ogemaw Routes") Completely overhauled the F-28 route listing including new termini, length, notes, history, counties and weblinks. Updated the western terminus on the G-12 route listing.
February 11, 2023		Added a new June 28, 1960 historical item to the US-12 route listing.
February 9, 2023		Added a new Projected 1980 Michigan Freeway System, 1961 map to the Maps section.
February 7, 2023		Today's website updates include: Added a new December 18, 1928 historical item to the US-31 route listing. Added a new June 25, 1935 historical item to the Historic US-33 route listing. Updated the June 9, 1986 and August 25, 1986 historical items on the Historic US-33 route listing. Updated the November 12, 1928 historical item and added a new Late 1928 historical item to the Historic US-102 route listing. Updated the November 28, 1958 historical item on the US-131 route listing.
February 4–6, 2023		Here's what's updated on the website: Added a new July 13, 1936 historical item to the US-23 route listing. Updated the May 24–26, 1933 historical item and added a new external link to the "Additional Information" section of the Historic US-112 route listing. Updated the US-112S item in the Master List 1913–Present with some new historical info.
January 28, 2023		Updated the October 1937 historical item on the Historic US-27 route listing adding the month.
January 27, 2023		Added brand new! route maps for 11 additional highway routes: M-15 map US-24 map US-31 map M-42 map M-45 map M-47 map M-71 map M-78 map M-138 map I-196 map A-2 map
January 26, 2023		Here's what's new or changed today: Added a new Fall 1999 historical item to the M-37 route listing. Added new June 27, 1926 and December 1, 1926 historical items to the M-54 route listing.
January 25, 2023		Today's website updates include: Added a "new style" route listing for Former M-41 and made the necessary changes to the Routes 40–49 page. This listing features a complete and expanded history section and an historic route map. Completely overhauled the early history of the M-54 route listing, adding 13 new historical items and updating the May 15, 1927 historical item. Updated the September 9, 1925 historical item, added new Late 1926 and May 15, 1927 historical items, and added a new Note to the M-82 route listing. Also added a brand-new M-82 route map to the M-82 route listing.
January 23, 2023		Here's what's updated on the website: Updated the October 29, 1932 historical item and added a new August 1933 historical item to the US-131 route listing. Added a new note to the Notes section of the US-131 route listing. Added the proposed-but-never-used BUS US-10 designation at Flint for what eventually became I-475 through the city to the Master List 1913–Present. Added the proposed-but-never-used BUS US-10 designation at Saginaw for what eventually became I-675 through the city to the Master List 1913–Present. Added the proposed-but-never-used BUS US-16 designation at Howell for what eventually became BL I-96 through the city to the Master List 1913–Present.
January 20, 2023		Here's what's new or changed today: Updated the December 8, 1930 and October 22, 1935 historical items on the M-106 route listing. Added a note to the M-111 route listing about it being the initially-proposed route designation for the "Ann Arbor Cut-off" bypass. Added new October 1929 and April 11, 1930 historical items to the M-152 route listing.
January 13, 2023		Added a brand-new route listing for Former M-130 and made the necessary changes to the Routes 120–139 page. This listing features a complete and comprehensive history section and includes a historical map of the route of Former M-130, too!
January 12, 2023		Added a newly-discovered historic state trunkline designation—M-21 STUB in Lyons (existing 1929–1934?)—to the Master List 1913–Present.
January 8, 2023		Today's website updates include: Added a brand-new Who Maintains the Highways? page describing Direct Maintenance and Contract Maintenance of the trunkline system. Added a Trunkline Maintenance map to the above newly-added page and the Maps page.
January 7, 2023		Updated the I-96/I-69/I-496/US-27 Interchange map (as proposed in 1976 west of Lansing byt never constructed) utilizing a more precise map from MDOT.
January 2, 2023		HAPPY NEW YEAR! As this website enters its 26th year, the copyright statement in the page footers has been updated to the current year and a few other behind-the-scenes changes have been made.
December 23–31, 2022		Here's what's updated on the website: Updated some new and updated notes as well as a March 29, 2021 historical item and added a new February 2020 historical item to the I-375 route listing. Added a Former M-178 route map to the Former M-178 route listing. Added a Former M-206 route map to the Former M-206 route listing. Added an I-375 route map to the I-375 route listing. Added a Future I-375 route map to the I-375 route listing.
December 19, 2022		Here's what's new or changed today: Updated the January 7–14, 2019 historical items on the following: M-43 route listing Former M-331 route listing M-343 route listing BS I-94 (Kalamazoo) route listing BUS US-131 (Kalamazoo) route listing Eliminated the February 10, 2022 and the 2023 historical items and replaced them with a new September 27–October 12, 2022 historical item on the M-30 route listing.
December 14, 2022		Updated the internal cross-links on scores of pages that, for some reason, still pointed to the old route listings on the multi-listing pages instead of the single route listing. The listings for US-2, M-6, M-100, M-119 and M-120 were most affected. Also fixed links on the M-55 route listing that were, oddly, pointing to Internet Archive versions of pages of this website for some reason! In addition, did a lot of back-end HTML clean-up that should be invisible to site visitors, but would've kept this site's webmaster up at night if he hadn't done it...
December 13, 2022		Today's website updates include: Added a "new style" route listing for M-129 and made the necessary changes to the Routes 120–139 page. This listing features a completly overhauled and expanded history section. Added a newly-discovered historic state trunkline designation—US-2 STUB in Pickford (existing 1928–1937)—to the Master List 1913–Present. Added a brand-new route listing for Former M-206 and made the necessary changes to the Routes 200-229 page. This listing features a complete history section. Updated/fixed several broken weblinks and added several new links to historic bridges to the US-2 route listing. Updated the Summer 1935 and November 12, 1940 historical items on the M-26 route listing. Updated/fixed several broken weblinks and added several new links to historic bridges to the M-28 route listing. Added a June 1934 historical item to the US-45 route listing. Added a 1928 and October–December 1928 historical items as well as updated the Fall 1929 and the 1929–1931 historical item with a new July 1, 1931 sub-item and updated the August–September 1931 sub-item on the M-64 route listing. Added new December 2, 1930, July 1, 1931, and October 13, 1934 historical items to the M-129 route listing. Updated the Aug–Sept, 1931, July 12, 1933, Summer 1935, December 1939 and OCtober 27, 1967 historical items on the M-129 route listing.
December 7, 2022		Added a "new style" route listing for US-127 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and including an actual map of the route of US-127, too!
December 6, 2022		Added new January 17, 1914, June 23, 1914, April 27, 1916, July 6, 1917, July 1, 1919, March 6, 1956, January 3, 1961, February 10, 2022 historical items and added a new November 10–15, 1952 historical item to the M-30 route listing. (With these updates, the history section of the M-30 listing has essentially been completely overhauled over the past two days.)
December 5, 2022		Here's what's updated on the website: Completely overhauled the history section of the M-43 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1919! (I mean a serious amount... as in septupled or octupled the amount of information!) And the listing now also features an M-43 route map as well! Updated the December1, 1961 and June 30, 1962 historical items, added a pair of new November 8, 1961 historical items and new July 7, 1958 and 2023 items, added a Future Southern Terminus and an additional (future) length figure as well as updated the Notes section of the M-30 route listing to reflect its impending extension. Updated the December 12, 1962 and November 7, 1969 historical items on the M-47 route listing. Updated the November 7, 1969 historical item on the M-52 route listing.
November 28, 2022		Here's what's new or changed today: Added a US-31 Freeway in Berrien County Progress Map to the US-31 Freeway in Berrien County in-depth article. Updated some of the weblinks on the US-31 route listing.
November 27, 2022		Some additional updates due to the US-31/St Joseph Valley Pkwy freeway completion (and related projects) in Berrien Co: Updated the eastern terminus and route length and added two new notes to the "Notes" section on the BL I-94 (Benton Harbor–St Joseph) route listing. Added new Late 2010 and combined 2020–2022 historical items to the BL I-94 (Benton Harbor–St Joseph) route listing. Also added a brand new route map to the BL I-94 (Benton Harbor–St Joseph) route listing. Uploaded a brand new route map for the M-63 route listing as well.
November 14, 2022		Due to the completion of the US-31/St Joseph Valley Pkwy freeway in Berrien Co, here are some related updates: Added Late 1980s, 2004 and November 9, 2022 historical items to the US-31 route listing. Updated various other sections of the US-31 route listing to show the completion of the Berrien Co freeway segment, including the overall length of the route, the freeway and expressway segments and various other updated. (US-31 is 1.75 miles shorter now.) Major updates and additions to the US-31: Berrien County Freeway in-depth article, including text updates, new maps and photos, etc. Also included is a new overview US-31: Berrien County Freeway Map.
November 6, 2022		Today's website updates include: Added a "new style" route listing for Former M-31 and made the necessary changes to the Routes 30–39 page. This listing features a complete and expanded history section and two historic route maps. (And, no, this had nothing to do with any major change ocurring to any other "31-numbered" route in the state in the near future...) Updated the September 9, 1925 historical item and added a new May 15, 1927 historical item to the M-83 route listing. Updated the September 9, 1925 historical item and added a new May 15, 1927 historical item to the M-84 route listing.
November 3, 2022		Here's what's updated on the website: Added a new December 7, 1959 historical item on the Historic US-16 route listing. Updated the December 14–21, 1963, December 29, 1972 and December 8, 1974 historical items and added new Early 1973, June–July 1974, August 31–October 20, 1982 and December 1, 1985 historical items to the M-21 route listing. Added new October 31, 1957 and November 3–December 7, 1957 historical items and updated the December 7 1959 historical items to the Historic US-27 route listing.
October 16–25, 2022		A cadre of website updates over the past ten days: A new, albeit very short-lived iteration of M-13 has been discovered! As such, new December 31, 1930 and Mid-May 1931 historical items have been added and the August 12, 1931 historical item has been updated on the M-13 route listing. Updated the Late October 1930, August 30, 1937 and November 1, 1956 historical items and added Mid-May 1931 and January 7, 1935 historical items to the M-14 route listing. Updated the Fall 1952–August 24, 1953 historical item and added new November 16, 1955 and July 17, 1957 historical items to the Historic US-27 route listing. Found a brand new potential state trunkline route designation—BYPASS M-29 at Mount Clemens in c.1948. Added it to the Master List 1913–Present. Found a brand new potential state trunkline route designation—M-35A from downtown Negaunee through downtown Ishpeming in c.1948. Added it to the Master List 1913–Present. Added a new December 6, 1938 and updated the June 10, 1939 historical items on the M-37 route listing. Updated the March 5, 1931 historical item and added a new mid-November, 1931 historical item on the M-60 route listing. Updated the Fall 1952–August 24, 1953 and July 17, 1957 historical items and added a new November 16, 1955 historical item to the M-78 route listing. Updated the Late October 1930 historical item on the US-127 route listing. Updated the July 12, 1933 and August 30, 1937 historical items on the US-131 route listing with M-131 information. Added a new May 26, 1930 historical item and updated the Late October 1930 historical item on the US-223 route listing. Added a M-13 SPUR (1931) and a second M-14 SPUR (1931) entry to the Master List 1913–Present and made a few other minor updates to the listings. Updated the Master List 1913–Present to reflect that BS I-496, which had formerly been classified as a "Proposed/Never Used" route, is now classified as a "Former" route based on internal State Highway Dept maps. It was likely an unsigned designation, however.
October 12, 2022		Here's what's new or changed today: Added a Site History page in honor of the website's 25th year of existence. Added new renditions of the Central Michigan Pike, Cloverland Trail, Custer Trail (alternate version), Tecumseh Trail, Theodore Roosevelt International Highway, and West Michigan Pike auto trail markers and secondary versions of the Central Michigan Pike and Mackinaw Trail auto trail markers image to those trails listings on the Historic Auto Trails listings page. Added a listing for the International Pavedway auto trail to the Historic Auto Trails listings page. Also made a few other minor updates and external link updates to the Historic Auto Trails listings page.
October 11, 2022		Added a new "sub-banner" to the website header noting the Michigan Highways website has now been "Online for a Quarter Century: 1997–2022!" Hard to believe... Also added brand new! route maps for 22 additional state trunkline routes.: M-19 map M-24 map M-25 map M-29 map M-34 map M-36 map M-40 map M-49 map M-51 map M-52 map M-53 map M-54 map M-62 map I-75 maps M-79 map M-81 map M-83 map M-106 map M-139 map M-140 map M-156 map US-223 map
October 10, 2022		Added brand new! route maps for 24 additional state trunkline routes. An asterisk (*) indicates a newly regenerated map replacing an older map for that route. US-10 map M-13 map M-18 map M-20 map M-21 map M-22 map US-23 map M-30 map M-33 map M-37 map M-43 map M-46 map M-50 map M-55 map M-57 map M-60 map M-61 map M-65 map M-66 map I-69 maps M-72 map* M-89 map* I-96 maps US-131 map
October 1, 2022		Today's website updates include: Updated the Summer 1983 and July 18, 1985 historical items on the Historic US-27 route listing. Updated the Summer 1983 and July 18, 1985 historical items on the I-69 route listing.
September 26, 2022		Updated the December 23, 1969 historical item and added a new June 18, 1970 historical item to the US-127 route listing.
September 23, 2022		Here's what's updated on the website: Updated the February 1974 historical item on the Historic US-27 route listing. Updated the February 1974 historical item on the I-69 route listing. Updated the December 18, 1970 and February 1974 historical items on the M-78 route listing. Updated the August 27, 1974 historical item on the US-127 route listing.
September 19–20, 2022		Added brand new! route maps for 23 Upper Peninsula and Northern Lower Peninsula trunkline, Intercounty and Forest Highway routes. An asterisk (*) indicates a newly regenerated map replacing an older map for that route. US-2 maps M-26 map M-27 map M-28 map M-32 map M-38 map US-45 map M-64 map M-68 map M-69 map M-72 map M-73 map M-75 map M-94 map* M-134 map* M-189 map M-203 map H-13 map H-37 map H-40 map H-63 map FFH-13 map FFH-16 map
September 9, 2022		Added a new September 6, 1977 historical item to the Historic US-27 route listing.
September 7, 2022		Here's what's new or changed today: Added new June 27–November 29, 1958, May 1–June 11, 1959, August 20–October 2, 1965 and December 3, 1973 historical items to the US-127 route listing. Updated the November 16, 1956 and July 18, 1985 historical items on the US-127 route listing. Updated the December 12–14, 1962 historical item on the M-143 route listing.
August 26, 2022		Added brand new! route maps for eleven Upper Peninsula trunkline routes: M-35 map US-41 map M-48 map M-67 map M-77 map M-80 map M-129 map M-134 map US-141 map M-183 map M-553 map
August 24, 2022		Today's website updates include: Added a new May 26, 1930 historical item to the US-127 route listing. Updated the November 1930 historical item on the US-127 route listing.
August 19, 2022		Here's what's updated on the website: Added a brand-new route listing for Former M-126 and made the necessary changes to the Routes 120–139 page. This listing features a complete and comprehensive history section and includes a historical map of the route of Former M-126, too! Added new July 1, 1938 and April 9, 1940 historical items to the Historic US-16 route listing. Also updated the July 1, 1940 and c.1940-1942 historical items on the Historic US-16 route listing. Updated the July 1, 1940 and c.1940-1942 historical items on the M-104 route listing.
August 17, 2022		Here's what's new or changed today: Added a new 1966 historical item to the newly-overhauled M-123 route listing. Updated the 1934 and January 7, 1935 historical items on the M-123 route listing. Added a new listing to the Notes section, a completely new "History" section and updated/added links to the Website section of the FFH-42/Whitefish Bay National Scenic Byway listing on the Forest Highways listings page.
August 16, 2022		Today's website updates include: Added a route listing for Former M-23 and made the necessary changes to the Routes 20–29 page. This listing features a completly overhauled and expanded history section and including an actual map of the route of Former M-23, too! Added a "new style" route listing for M-123 and made the necessary changes to the Routes 120–139 page. This listing features a completly overhauled and expanded history section and including an actual map of the route of M-123, too! Added a "new style" route listing for M-124 and made the necessary changes to the Routes 120–139 page. This listing features a completly overhauled and expanded history section and including an actual map of the route of M-124, too! Added a "new style" route listing for M-125 and made the necessary changes to the Routes 120–139 page. This listing features a completly overhauled and expanded history section and including an actual map of the route of M-125, too!
August 15, 2022		Added a "new style" route listing for M-149 and made the necessary changes to the Routes 140–159 page. This listing features a completly overhauled and expanded history section and including an actual map of the route of M-149, too!
August 12, 2022		Here's what's updated on the website: Added a new January 13, 1971 historical item to the M-24 route listing. Updated the c.1978–80 historical item on the M-68 route listing. Added a new Summer 1969 historical item to the M-183 route listing.
August 11, 2022		Here's what's new or changed today: Updated the Early July/December 9, 1936 historical item on the US-2 route listing. Added new October 28, 1935 and August 30, 1937 historical items to the US-2 route listing. Added a new June 22, 1931 historical item to the M-86 route listing.
August 4, 2022		Today's website updates include: Updated the December 21, 1956, October 12, 1959 and Winter 1974 historical items and added the May 22, 1959 historical item to the US-24 route listing. Added new Late 1953/January 1–September 15, 1954, June 24–September 11, 1956, November 15, 1970 and September 28, 1971 historical items to the Historic US-25 route listing. Updated the October 30, 1956 and November 12, 1958 historical items on the Historic US-25 route listing.
July 27, 2022		Here's what's updated on the website: Added November 1, 1926, June 30, 1930, October 3, 1930, June 14, 1931, August 31, 1932, October 29, 1932, late-February, 1934, August 2, 1934, October 29, 1934, January 7, 1935, August 30-September 27, 1937 and June 24, 2957 historical items to the Historic US-25 route listing. Updated the September 7, 1929, February 4, 1931, Mid-May, 1933 and June/December 29, 1937 historical items on the Historic US-25 route listing. Updated the mid-May 1933 and late-Feb 1934 historical items on the M-25 route listing.
July 26, 2022		Gave the Related Links page a much-needed complete updating and overhaul. Sorry for how stale many of the links had gotten!
July 10, 2022		Here's what's new or changed today: Updated the 1926 and May 2, 1927 historical items on the Historic US-25 route listing. Added a new December 17-29, 1937 historical item and updated the Late 1938 and 1943 historical items on the M-33 route listing.
July 2, 2022		Today's website updates include: Updated the November 1, 1957 and November 15, 1957 historical items on the US-2 route listing. Updated the September 10, 1962 historical items on the US-2 route listing and the US-41 route listing. Updated the November 27, 1963, Oct 14-15, 1964 and October 16, 1972 historical items and added new May 1–June 11, 1959, December 28, 1963, September 30, 1964, October 19, 1966, February 2-3, 1967, June 20, 1967, and September 26, 1973 historical items to the Historic US-25 route listing. Added a new September 26, 1973 historical item to the I-75 route listing. Updated the 1954 and May 15, 1954 historical item on the M-123 route listing. Added a new September 26, 1973 historical item to the M-125 route listing.
June 30, 2022		Added new 1962, 1998 and November 9, 2007 historical items to the M-123 route listing.
June 29, 2022		Here's what's updated on the website: Updarted the December 14, 1959 historical item on the US-23 route listing. Added March 24, 1954 historical items to the US-24 route listing, the Historic US-25 route listing and the US-31 route listing. Added a mid-March 1996 historical item to the M-125 route listing.
June 25, 2022		Added a brand-new route listing for Former M-122 and made the necessary changes to the Routes 120–139 page. This listing features a complete history section and includes an actual map of the route of Former M-122, too!
June 14, 2022		Updated the August 30/December 29, 1937 historical items on the US-2 route listing and the US-31 route listing.
June 9, 2022		Added a brand-new route listing for Former M-56. This listing features a complete and expanded history section. Also added links from elsewhere on the site to the new Former M-56 route listing, where applicable.
June 3, 2022		Here's what's new or changed today: Added new January 9, 1989, June 1, 1993, October 19, 1994, and March 5, 1996 historical item to the M-21 route listing. Added a sizeable note/discussion on the naming and its related issues of the I-475 freeway as well as updated the September 7, 1981 historical item, added a new 2018–2020 historical item, and added new weblinks to the I-475 route listing.
June 2, 2022		Today's website updates include: Added a new October 25, 1962 and November 26–28, 1962 historical items and updated the November 5–15, 1962 historical item on the US-10 route listing. Updated the December 14, 1984 historical item on the M-21 route listing. Updated the December 10–12, 1962 and the Late August/September 29/November 15, 1962 historical items on the US-31 route listing. Updated the October 25, 1962, July 25, 1975, November 21, 1978, and June 26, 1987 historical items on the M-54 route listing. Added new 1974, August 1, 1980, January 12, 1983, December 22, 1986, June 14, 1988, January 28, 1991, January 7, 1992, July 6, 1993, July 5, 1995, and February 6, 1996 historical items to the M-54 route listing. Updated the November 5, 1962 (11 am), November 5–15, 1962 and December 14, 1962 historical items on the I-75 route listing. Added a new October 25, 1962 historical item to the I-75 route listing. Updated the November 8, 1973, April 1980 and September 7, 1981 historical items and add a new September 26, 1974 historical item to the I-475 route listing.
May 25, 2022		Updated the July 31, 1964 historical item on the I-196 route listing.
May 23, 2022		Here's what's updated on the website: DISCOVERED A PREVIOUSLY UNDOCUMENTED ROUTE DESIGNATION! Added the US-2A designation in Escanaba to the Master List 1913–Present. Added a "new style" route listing for M-121 and made the necessary changes to the Routes 120–139 page. This listing features a completly overhauled and expanded history section and including an actual map of the route of M-121, too! Added new March 10, 1967, Fall 1969 and November 10–12, 1971 historical items to the M-21 route listing and the M-78 route listing. Updated the August 16, 1971, December 21, 1971 and February 1974 historical items on the M-21 route listing. Updated the December 1–6, 1972 historical item on the M-59 route listing. Added new November 4, 1968 historical items to the M-78 route listing and I-475 route listing. Updated the June 28–September 25, 1968, September 2, 1970, December 17, 1971, and December 21, 1971 historical items on the M-78 route listing. Updated the March 12, 1972 historical item and added new September 26, 1974 and December 8, 1974 historical items to the I-196 route listing.
May 19, 2022		Here's what's new or changed today: Added the Allan M. Williams, 1892–1979 page to the In Depth section. Updated the links for Allan M. Williams on the Route Markers page. Added the 2021 mileage figures for state trunkline highway, county road, municipal street, and total road mileage in the state on the Introduction page. Added a weblink to a WDIV-TV news story on the history of the Zilwaukee Bridge. Added a link to the Allan M. Williams page to the Historic US-16 route listing and the I-96 route listing. Added new weblinks to a news story to the I-296 route listing and US-131 route listing. General updates to the Sources & Credits page. Updated all of the links to MDOT's maps on the Maps page.
May 17, 2022		Added the following new listings to the Memorial Highways sections of the following route listings: "Senator Tom Casperson Memorial Bridge"– US-2, US-41 and M-35 "Darryl M. Rantanen Memorial Highway" – US-2 and US-41 "Staff Sergeant Duane J. Dreasky Memorial Highway" – M-5 "Aretha L. Franklin Memorial Highway," "Sergeant Collin Rose Memorial Highway" and "Violet T. Lewis Memorial Highway" – M-10 "Trooper Rodger M. Adams Memorial Highway" – US-12 "PFC Alan Robert Blohm Memorial Hwy" and "Sergeant Kristopher J. Gould Memorial Bridge" – M-13 "Deputy Eric Overall Memorial Highway," "Purple Heart Trail" and "Army Sergeant First Class Michael Cathcart Memorial Highway" – M-15 "Peter C. Lemon Highway" – US-23 "Julie Plawecki Memorial Highway" – US-24 "Officer Scott Flahive Memorial Highway" and "PFC Brett Witteveen Memorial Highway" – US-31 "Patrolman Bobby Lynn Williams Memorial Highway" – M-34 "Ben Lauren and Don Riling Memorial Highway" – M-35 "Samuel R. Costello Memorial Highway" – US-41 "Michigan State Trooper Timothy O'Neill Memorial Highway" – M-44 "Marine Sergeant Michael P. Hodshire Memorial Highway" – M-49 "Ensign Francis Flaherty Memorial Highway" – M-50 "Trooper Byron J. Erickson Memorial Highway" and "Michigan Desert Storm Veterans Memorial Highway" – M-52 "SOC Jason R. Freiwald Memorial Highway" and "Det. Sgt. Christopher M. Wouters Memorial Highway" – M-53 "Sergeant Matthew R. Soper Memorial Highway" – M-60 "Bataan and Corregidor Veterans Memorial Highway" – I-69 "SPC Holly McGeogh Memorial Highway" and "PFC Kenneth Coates Memorial Interchange" – I-75 "Staff Sergeant Eugene H. E. Alex Memorial Highway" – M-81 "Kevin D. White Memorial Highway," "Corrections Officers Jack Budd and Josephine McCallum Memorial Highway," "Deputy Gate Keeper George W. Haight Memorial Highway" and "Firefighter Coleman A. Tate Memorial Highway" – I-94 "Deputy Ernest W. Heikkila Memorial Highway" – M-120 Also made the following updates and changes: Updated the "Pulaski Highway" and "Iron Brigade Memorial Highway" listings on the Memorial Highways section of the US-12 route listing. Updated the "Blue Star Memorial Highway" and "Pere Marquette Highway" listings on the Memorial Highway section of the US-31 route listing. Added a Memorial Highways section to the I-196 route listing. Added a Memorial Highways section to the US-127 route listing.
May 15, 2022		Today's website updates include: Added a "new style" route listing for M-120 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and including an actual map of the route of M-120, too! Added new May 23, 1936, March 28, 1969 and February 3, 1970 historical items to the M-20 route listing. Updated the July 1, 1970 and April 16–December 23, 1975 historical items on the M-20 route listing. Added a new map link to the M-20 route listing and the M-82 route listing and added a new weblink to the M-20 route listing and the M-82 route listing. Updated the October 19–November 19, 1963 and the Late October–November 30, 1964 historical items on the M-82 route listing. Added the M-20/M-120/M-82 Maps (1969–1971) page to the Maps section and links to it to the M-20 route listing, M-82 route listing and the M-120 route listing.
May 11, 2022		Here's what's updated on the website: Added new October 5, 1967 and March 11, 1968 historical items to the US-10 route listing, the US-23 route listing and the I-75 route listing. Updated the Early December 1960/January 3, 1961 historical item on the US-23 route listing.
May 10, 2022		Here's what's new or changed today: Updated the May 25–26, 1940 historical item on the M-86 route listing. Updated the June 1939 historical item on the US-131 route listing. Updated and expanded the notes section, added a new March 29, 2021 historical item, and added new related links to the I-375 route listing.
May 6, 2022		Today's website updates include: Added a new Early February 1951, a second February 14, 1952, and October 12, 1961 and a second June 24, 1957 historical item to the US-31 route listing. Updated the February 20, 1950 historical item on the US-31 route listing. Added a new September 27, 1961 historical item and updated the December 4, 1961 historical item on the US-131 route listing. Updated the Early February 1951 historical item on the BUS US-31 (Muskegon) route listing.
May 1, 2022		Here's what's updated on the website: Updated the April–June 1930, July 14-17, 1931 and June 1940 historical items on the US-31 route listing. Added new July 13, 1931, October 25-29, 1932 and November 1, 1932 historical items to the US-31 route listing. Updated the October 25-29, 1932 and June 1940 historical items on the BUS US-31 (Muskegon) route listing.
April 27, 2022		Here's what's new or changed today: Added a new June 9, 1965 historical item to the M-20 route listing. Updated the June 30, 1964 and June 9-25, 1965 historical items on the US-31 route listing Added new July 14, 1931, September 1961, October 30, 1964 and January 20, 1965 historical items to the US-31 route listing. Updated the June 30, 1964, October 30, 1964, January 20, 1965 and June 9–25, 1965 historical items on the BUS US-31 (Muskegon) route listing.
April 26, 2022		Today's website updates include: Updated the August 22, 1961, December 12, 1962, October 1964 and December 3, 1964 historical items on the M-20 route listing. Added a new August 22, 1961 historical item to the M-46 route listing. Updated the November 25–December 14, 1964 historical items on the M-45 route listing and the M-50 route listing. Added new October 1964, December 3, 1964 and January 26, 1965 historical items to the BUS US-31 (Muskegon) route listing. Updated the October 22–November 9, 1959, 1961 and August 22, 1961 historical items on the BUS US-31 (Muskegon) route listing.
April 25, 2022		Here's what's updated on the website: Updated the 1960 historical item on the US-31 route listing. Updated the October 22–November 9, 1959, September 27, 1960, September 21, 1973 and 1984 historical items on the M-46 route listing. Added several new historical items to the M-46 route listing: October 31, 1950 November 6, 1952 January 18, 1954 March 5, 1957 November 8, 1962 January 25, 1963 April 1, 1986 Added a September 6, 1956 historical item to the BUS US-31 (Muskegon) route listing.
April 17, 2022		Here's what's new or changed today: Added a December 10, 1962 historical item to the Historic US-16 route listing. Added Summer 1957 and October 9, 1957 historical items to the Historic US-27 route listing. Updated the December 17–29, 1937 historical item on the M-46 route listing. Updated the December 17–29, 1937 historical item on the M-59 route listing. Updated the December 17–29, 1937 historical item on the M-61 route listing. Added a June 15,1939 historical item to the M-120 route listing. Added a December 18, 1937 historical item and updated the January 28, 1942 historical item on the M-131 route listing.
April 16, 2022		Updated these memorial highway designations on the following route listings: "United Spanish War Veterans' Memorial Highway," "Kenneth J. Moraska Memorial Highway," "AmVets Memorial Drive" and "Heath Michael Robinson Cut River Memorial Bridge" – US-2 "Ronald W. Reagan Memorial Highway" – M-3 "Keith Deacon Memorial Highway" –  M-5 "Paul B. Henry Freeway" and "David John Warsen Memorial Highway" – M-6 "Charles J. Rogers Interchange" – M-8 "Adler Memorial Highway" and "Holocaust Memorial Highway" – M-10 "Iron Brigade Memorial Highway," "Pulaski Memorial Highway," "Tpr. Steven B. Devries Memorial Highway," and "James Bondsteel Memorial Highway" – US-12 "Specialist 5 Michael May and Corporal Chris Esckelson Memorial Highway" – M-15 "Veteran's Memorial Highway" – M-18 "PFC Harold R. Cooley WWII Marine Corps League Memorial Highway" and "Mark V. Ingram II Freeway" – M-21 "Carl Oleson, Jr. Bridge" – M-22 "United Spanish War Veterans' Memorial Highway," "Sergeant Joe Johnson Memorial Highway," "Roberts-Linton Highway and Veterans of World War I Memorial Highway," "Trooper Larry Forreider Memorial Highway," "Peter A. Pettalia Memorial Highway," and "Major Andrew Becker USAF Memorial Hwy" – US-23 "Fallen Soldiers of Iraqi Freedom Memorial Highway," "Matt Urban Memorial Bridge," "Clara Barton Memorial Highway," "10th Mountain Division Highway," and "Corporal Matthew Edwards Memorial Highway" – US-24 "William Davidson Memorial Highway" – M-24 "Veterans Memorial Highway," "Earl DeMarse Memorial Highway," and "Jacobetti Highway" – M-28 "Staff Sergeant Ergin V. Osman Memorial Highway" – M-29 "Blue Star Memorial Highway," "St. Joseph Valley Parkway," "Medal of Honor Recipients Highway," "Veterans Memorial Bridge," "Pere Marquette Memorial Highway," and "Green Arrow Route-Mackinac Trail" – US-31 "Veterans' Memorial Highway" – M-32 "Veterans' Memorial Drive" – M-33 "United Spanish War Veterans' Memorial Highway" and "AmVets Memorial Drive" – M-35 "Brian Derks Memorial Highway" and "World War II Veterans Memorial Highway" – M-37 "United Spanish War Veterans' Memorial Highway," "AmVets Memorial Drive" and "Earl DeMarse Memorial Highway" – US-41 "Frank D. Fitzgerald Memorial Highway" — M-43 "AMVETS Memorial Scenic Drive" – M-46 "Officer James Bonneau Memorial Bridge" – M-50 and BUS US-127 (Jackson) "Trooper Calvin R. Jones Memorial Highway" and "Deputy Grant Whitaker Memorial Highway" – M-52 "Earle Memorial Highway," "Christopher Columbus Freeway" and "POW/MIA Memorial Freeway" – M-53 "Marine Corps League Memorial Highway" and "UAW Sitdown Strike Memorial Highway" – M-54 "Gold Star Mothers Memorial Highway" – M-55 "Joseph Prentler Memorial Highway" and the "Bernie Borden Memorial Overpass" – M-57 "Vietnam Veterans Memorial Highway," "Candice Dunn Memorial Highway" and "Veterans Memorial Freeway" – M-59 "Veteran's Memorial Highway" – M-62 "Harry Gast Parkway" – M-63 "Ontonagon County Veterans Memorial Bridge" – M-64 "Sojourner Truth Memorial Highway," "Green Arrow Route," "Veterans Highway" – M-66 "Purple Heart Trail," "Purple Heart Highway," "Pearl Harbor Memorial Highway," "Chevrolet-Buick Freeway," "Louis Chevrolet Freeway," "Veterans Memorial Highway," and "DeWayne T. Williams Memorial Highway" – I-69 "United Spanish War Veterans' Memorial Highway" and "Oscar G. Johnson Memorial Highway" – M-69 "PFC Shane Cantu Veterans Memorial Highway" and "Graham Barlow Jr., WWII Memorial Highway" – M-71 "Hazen Shirley 'Kiki' Cuyler Memorial Highway" – M-72 "American Legion Memorial Highway," "Tuskegee Airmen Memorial Highway," "Walter P. Chrysler Freeway," "Charles J. Rogers Interchange," "Officer Martin 'Marty' Chivas Memorial Highway," "John Wayne 'Dusty' Marcum Memorial Highway," "Bernie Borden Memorial Overpass," "Roberts-Linton Highway and Veterans of World War I Memorial Highway," "G. Mennen Williams Highway" and "Prentiss M. Brown Memorial Highway" – I-75 "Veterans of Foreign Wars Memorial Highway" – M-81 "Korean War Veterans Memorial Highway" – M-82 "Matt McNeely Boulevard" – M-85 "Trooper Rick L. Johnson Memorial Freeway," "Officer Eric Zapata Memorial Highway," "Chief Ed Switalski Memorial Highway," "94th Combat Infantry Division Memorial Highway," "Underground Railroad Memorial Highway," "Auxiliary Lieutenant Dan Kromer Memorial Highway," and "James G. O'Hara Freeway" – I-94 "AmVets Memorial Highway," "Officer Trevor Slot Memorial Highway," "Mitchel A. Kiefer Foundation for Distracted Driver Awareness Highway," "Officer Mason Samborski Memorial Highway," "Disabled American Veterans Memorial Highway," "Philip A. Hart Memorial Highway," and "Rosa Parks Memorial Highway" – I-96 "Green Arrow Route-Mackinac Trail," "Sydney Ouwinga Memorial Bypass," "Underground Railroad Memorial Highway," "Specialist 4th Class Eric Burri Memorial Highway," "Corporal Ross A. Smith Memorial Highway" and "Private First Class Nicholas H. Blodgett Memorial Highway" – US-131 "Sgt. Henry E. Plant Memorial Grand River Bridge Non-Motorized Trai" –  M-231 "Moses J. Jones Parkway" – BUS US-31 (Muskegon)
April 15, 2022		Today's website updates include: Added a "new style" route listing for M-119 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section and including an actual map of the route of M-119, too! Added route maps for the following: M-116 route map M-117 route map M-120 route map Updated various links on the Lake Erie Circle Tour, Lake Huron Circle Tour, Lake Michigan Circle Tour and Lake Superior Circle Tour pages, mostly to reflect the Great Lakes Commission seemingly completely abandoning the Great Lakes Circle Tours coordination effort altogether!
April 14, 2022		Here's what's new or changed today: Updated the August 15/September 15, 1960 historical item on the US-12 route listing. Updated the August 15/September 15, 1960 historical item on the M-40 route listing. Updated the August 15/September 15, 1960 historical item on the I-94 route listing. Added new February/March 1956, December 7, 1959, Summer/December 1990, October 1999 and June 28, 2003 historical items and updated the May 18/July 9, 1954, February 10, 1960 and August 15, 1960 listings on the M-119 route listing. Added new December 1964 and Summer 1972 historical items to the US-131/M-131 route listing. Several updates to the M-119 Tunnel of Trees Scenic Heritage Route listing on the Scenic Byways & Heritage Routes page, including major updates to the weblinks on the listing.
April 5, 2022		Here's what's updated on the website: Added a "new style" route listing for M-185 and made the necessary changes to the Routes 180–199 page. This listing features a completely expanded history section, too! Updated the November 1, 1963 historical item on the US-2 route listing and the I-75 route listing.
March 31, 2022		Today's website updates include: Added Mid-July 1959 historical items to the M-66 route listing and the M-78 route listing. Updated the October 5, 1979 historical item and added a Mid-July 1959 historical item to the US-131/M-131 route listing. Updated the October 5, 1979 historical item on the M-119 route listing. Added complete history sections to the C-77 route listing, the C-81 [North] route listing and the C-81 [South] route listing. Added a new note and updated another note on the C-77 route listing. Added a new note to the C-81 [South] route listing.
March 30, 2022		Here's what's new or changed today: Added a new September 18, 1969 historical item and updated the 1979 historical item on the US-131/M-131 route listing. Updated the 1979 historical item on the M-119 route listing.
January 26, 2022		Here's what's updated on the website: Updated the "Route Mileage by Signed System" table on the Route Systems page to use current (January 2022) length values. Updated the September 17, 1968, January 10, 1969 and September 17, 1970 historical items and added new September 19, 1968, August 5, 1969 and September 15, 1969 historical items to the I-75 route listing. Updated the National Highway System (NHS) status on the following route listings: BUS US-10 (Midland) route listing. Former BUS US-12 (Niles) route listing. BUS US-12 (Ypsilanti) route listing. CONN M-13 route listing. BUS US-24 (Pontiac) route listing. Former BUS US-31 (Holland) route listing. BUS US-31 (Muskegon) route listing. BUS US-31 (Whitehall-Montague) route listing. CONN M-44 route listing. BL I-69 (Coldwater) route listing. BL I-69 (Charlotte) route listing. BL I-75 (Pontiac) route listing. BL I-75 (Grayling) route listing. BL I-75 (Gaylord) route listing. BL I-94 (Marshall) route listing. BL I-94 (Albion) route listing. BL I-96 (Lansing) route listing. BL I-96 (Howell) route listing. Former BUS US-127 (Lansing) route listing. BUS US-127 (St Johns) route listing. BUS US-127 (Alma) route listing. BUS US-127 (St Louis) route listing. BUS US-127 (Mount Pleasant) route listing. BUS US-131 (Big Rapids) route listing. BUS US-131 (Cadillac) route listing. BL I-196 (South Haven) route listing. BL I-196 (Holland-Zeeland) route listing. BS I-196 (Wyoming) route listing. Capitol Loop route listing.
January 22, 2022		Today's website updates include: Updated the US-223 route listing to show the route "officially" terminates at US-127 instead of the US-12 & US-127 junction according to MDOT mapping data. Updated the OLD US-131 (Wexford) route listing on the Unsigned Routes page to reflect that the entirety of the route was not transferred to local control in 2018—a short, 0.256-mile long segment remains in the City of Manton. Also added a 2015–16 historical item and updated the July 2, 2018 item on the listing. Updated the OLD M-42 route listing on the Unsigned Routes page to reflect that it was transferred to city control sometime in 2018 and is no longer an unsigned trunkline. Added a new Fall 2018 historical item to the M-42 route listing related to the above changes. Updated the OLD M-59 route listing on the Unsigned Routes page to reflect a portion of the route was transferred to local control in 2018. Updated the OLD M-153 route listing on the Unsigned Routes page to reflect a portion of the route was transferred to local control in c.2015-17.
January 21, 2022		Added a "new style" route listing for the unsigned Belle Isle Roads (M-700 –  M-712) and made the necessary changes to the Unsigned Trunklines page. This listing features information for all thirteen unsigned trunkline routes on Belle Isle (M-700 –  M-712) and a completely expanded history section, too!
January 19, 2022		Here's what's new or changed today: Added listings for M-700 through M-712—the unsigned state trunkline designations for the "Belle Isle Roads" added in 2014—to the Master List 1913–Present. Updated the August 30, 1937 and December 29, 1937 historical items and added a August 3, 1938 historical item to the M-60 route listing.
January 17, 2022		Here's what's updated on the website: Added a new November 11, 1938 historical item and updated the August 17, 1942 item on the Former M-70 route listing. Added a November 1, 1931 historical item to the M-125 route listing.
January 14, 2022		Today's website updates include: Added a "new style" route listing for M-117 and made the necessary changes to the Routes 100–119 page. This listing features a completely expanded history section, too! Updated the October 1940 historical item and added another new November 12, 1940 historical item to the US-2 route listing. Added November 7, 1949 and November 10, 1952 historical items and updated the October, 1940 and November 10, 1949 historical items on the M-48 route listing. Added August 1954 and February 8, 1961 historical items and updated the May 18, 1962 historical item on the M-123 route listing.
January 13, 2022		Here's what's new or changed today: Added a "new style" route listing for M-116 and made the necessary changes to the Routes 100–119 page. This listing features a completely expanded history section, too! Added a November 1, 1931 historical item to the M-124 route listing. Updated the M-343 route listing to reflect the fact that MDOT officially considers the route to extend to M-43 north of Richland in contradiction to the MDOT-erected signage in the field. Also added a map illustrating the situation. Updated the Former BUS US-127 (Lansing) route listing to show the unsigned route has not been in existence for awhile. Updated the Master List 1913–Present as well.
January 12, 2022		Here's what's updated on the website: Completed adding the years to the "Extant" column in the Master List 1913–Present—a process which began when that column was added when the list was transitioned to the new website design in 2013(!). Every route designation now has the years it existed(s) shown, if known. It was a huge undertaking... Updated the extant dates and the description of Baraga's Former BUS US-41 on the Master List 1913–Present. Added Former BS I-69 in Port Huron to the Master List 1913–Present as it had been overlooked. (It only existed for a short period before it was redesignated as BL I-69.) Also added the proposed-but-never-used I-73 designation to the Master List 1913–Present as well. (I-73 will likely receive its own listing or feature article on the site in the future.) Completely overhauled the history section of the M-38 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! Also added new Memorial Highway information to the route listing as well. Updated the January 1969 historical items on the M-26 route listing, the M-28 route listing, the M-35 route listing, and on the US-41 route listing. Corrected the June 25, 1945 historical item on the Historic US-112 route listing thanks to a heads-up by site visitor Dyche Anderson. Thanks Dyche!
January 7, 2022		HAPPY NEW YEAR! Today's website updates include: Completely overhauled the history section of the M-17 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (I mean a serious amount...) Updated the Early 1938 and Spring 1939 historical items on the M-39 route listing. Updated the Early 1938 historical item on the M-43 route listing.
December 28, 2021		Here's what's new or changed today: Updated one of the general notes and added July–September 1986, May–June 1989, and November 20, 1989 historical items to the M-5 route listing. Added a route listing for Former M-9. This listing features a complete and expanded history section. Also added links from elsewhere on the site to the new Former M-9 route listing, where applicable. Updated the 1926 historical item and added new May 2, 1927 and Late 1929 historical items to the M-69 route listing. Updated one of the general notes, added a new note, and added a map illustrating the 1960 planning proposal for 1960 to the M-69 route listing. The "1939–1940 M-203 Saga" is detailed: Added new April 14, 1940 and August 1945 historical items and updated the July 12, 1933, July 12, 1939 and November 12, 1940 historical items on the M-203 route listing.
December 25, 2021		MERRY CHRISTMAS 2021! Here's what's updated on the website: Added July 26, 1939 and September 10, 1940 historical items and updated the December 5, 1960 and September 3, 1991 historical items on the M-69 route listing. Added an August 12, 1940 historical item to the M-83 route listing. Added an August 12, 1940 historical item to the M-142 route listing. Updated the July 13, 1939 historical item on the M-186 route listing.
December 22, 2021		Added a August 28, 1940 historical item to the M-99 route listing.
December 6, 2021		Today's website updates include: Added a listing for the proposed-but-never-used BS I-496 (Business Spur I-496) designation in Lansing to the Master List 1913–Present. Added a new November 22, 1930 historical item to the US-12 route listing.
November 28, 2021		Here's what's new or changed today: Updated the Historical Overview page. Overhauled "The History of Roads in Michigan" article by adding an initial Contents page which also features Other Michigan Highway History Resource links from around the website.
November 25–27, 2021		Here's what's new or changed: Added Development of Highway Systems in the Nineteenth Century and Development of Highway Legislation in the Twentieth Century , an excerpt from “Supplement to Transportation in Michigan—2000 A.D.: A Guide for Study Policy–Procedure,” prepared for John C. Mackie, State Highway Commissioner, December 1962, to the In Depth section. Added July–September, 1986, May–June, 1989 and November 20, 1989 historical items to the M-5 route listing. Added a new Early December 1956 historical item and updated the March 6, 1958 historical item on the M-21 route listing. Added a new December 5, 1955 historical item and updated the November 25, 1957 historical item on the US-31 route listing. Added new July 23, 1953 and Mid/Late 1957 historical items and updated the January 4, 1954 historical item on the US-127 route listing. Added a new December 19, 1955 historical item and updated the March 26, 1956 historical item on the US-223 route listing.
November 18, 2021		Added a May 1959 historical item on the US-23 route listing.
November 17, 2021		Updated the November 21, 1976 historical item on the I-275 route listing.
November 11–14,  2021		Here's what's updated on the website: Added a route listing for Former M-169 and made the necessary changes to the Routes 160–179 page. This listing features a complete and expanded history section. Also added links from elsewhere on the site to the new M-169 route listing, where applicable. Completely overhauled the history section of the M-18 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1914! Added a significant new July 3, 1949 historical item to the Historical US-27 route listing. Updated the May 15, 1927 and November 7–10, 1949 historical items and added a new Spring 1941 historical item on the Historical US-27 route listing. Minor tweaks to the January 7, 1935, January 28, 1942, July 3, 1949 and 1950 historical items on the M-55 route listing. Split the "1949–1950" historical item into separate July 3, 1949, Late 1949, July 20, 1950, and November 3, 1950 historical items and added a new December 4, 1961 historical item on the Former M-76 route listing.
November 3, 2021		Added the Houghton & Higgins Lakes Area Trunkline History Map, 1939–Present to the Maps section showing the evolution of the state trunkline highway system in that area of Roscommon and southern Crawford Counties over the decades through an animated map.
October 2, 2021		Added August 1, 1996 historical items to the following route listings: I-69 route listing I-75 route listing I-94 route listing I-96 route listing US-131 route listing
September 6, 2021		Added a 1940–41 historical item the US-31 route listing.
September 3, 2021		Today's website updates include: Added new a new November 1, 1957 historical item to the Historical US-27 route listing. Added information about a second (1926–1928) iteration of M-57 in Dickinson Co to the historical section of the M-57 route listing. Added two new notes of background information to the M-119 route listing. Updated the Sept 1928 and December 2, 1929 historical items on the US-141 route listing.
August 25, 2021		Here's what's new or changed today: Added information on the I-75 Modernization Project in Oakland Co to the I-75 Route Listing as well as a new 2016–2023 historical item and a link to the MDOT project website. Added additional information to the November 11 and November 12, 1960 historical items and updated the November 5 1962 historical item on the I-75 Route Listing. Added new historical information to the November 8, 1960 and December 1 1961 items on the Historical US-27 route listing. Added new August 7–15, 1961 and June 5, 1962 historical items to the Historical US-27 route listing. Separated out the various 1961 historical items on the Historical US-27 route listing into their own distinct entries. Added additional historical information to the Week of October 15 1961 item on the M-68 route listing.
July 4, 2021		Updated some links, made a few minor updates and corrected a few typos on the article M-35: The Highway Henry Ford Stopped.
June 16, 2021		Updated the February 7, 2017 historical item on the Former M-209 route listing.
June 11, 2021		Here's what's updated on the website: Added a July 2, 2018 historical item the US-131 route listing. Updated the OLD US-131 (Wexford) route listing to reflect its transfer to county control in 2018. Added new notes, updated the text and added a new Summer 2018 historical note.
June 9, 2021		Oddly enough, several M-247-related updates this go-around: Updated the northern terminus of M-247 to reflect the name change of Bay City State Recreation area back to Bay City State Park in 2017 in the M-247 route listing. Added a new note regarding the above name change to the M-247 route listing. Added a new May 21, 1984 historical item to the M-247 route listing.
June 5, 2021		Today's website updates include: Added a February 1, 1924 historical item to the Historic US-16 route listing. Updated the 1936 historical item, added a December 29, 1937 historical item, and updated the September 9/November 10, 1949 historical item on the M-22 route listing. Updated the January 28, 1942 historical item and added April 1, 1942 information to the M-28 route listing. Added a September 30, 1924 historical item to the M-124 route listing.
June 4, 2021		What's new or changed: Added a new October 31, 1921 historical item to the M-11 route listing. Added a new April 15, 1921 historical item to the M-13 route listing. Added a new April 15, 1921 historical item to the M-42 route listing.
June 3, 2021		A listing of what is new or changed on the site today: Added a listing for the proposed-but-never-used US-18 designation in Michigan from 1926 to the Master List 1913–Present. Added a listing for the proposed-but-never-used US-110 designation in Michigan from 1926 to the Master List 1913–Present.
April 3, 2021		Here's what's updated on the website: Added new 2020 and 2021 "historical" items to the M-30 route listing regarding the Edenville Dam Failure. Added new 2020 "historical" items to the US-10 route listing regarding the Edenville Dam Failure. Also added the various segments of Memorial Highways to the US-10 route listing.
November 27, 2020		Added the proposed-but-never-implemented M-275 route designation and added some information to the M-2 listings on the Master List 1913–Present.
November 2, 2020		Today's website updates include: Changed the status of the TEMP US-10 designation in the Master List 1913–Present from 1969 from a "Former" route designation to a "Proposed/Never Implemented" one. Added the proposed-but-never-approved BUS US-41 (Ishpeming/Negaunee) designation from 1966–1970 to the Master List 1913–Present. Updated the Nov 20, 1972 historical item on the Historic US-27 route listing. Added a c.1963 historical item to the M-115 route listing. Added a c.1959 historical item to the US-131 route listing.
November 1, 2020		What's new or changed: Updated the Master List 1913–Present to add the designation US-131 STUB used from 1931–1934 in Osceola Co. Updated the 1926, April 20 and May 2, 1927 historical items on the M-13 route listing. Updated the 1926, May 2, 1927, and 1930 historical items and added a July 15, 1931 historical item on the US-131 route listing. Added May 28, 1928 and July 15, 1931 and updated the mid-1934 historical items on the M-179 route listing.
October 30, 2020		Decided to add the original-but-eventually-never-used Interstate route designations from AASHO's "Official Route Numbering for the National System of Interstate and Defense Highways" map adopted on August 14, 1957 to the Master List 1913–Present. These never implemented designations included: I-67 (never built), I-77 (became part of I-94), I-92 (became part of I-94), and I-94N (became I-196, now I-96).
October 28, 2020		Added a newly "discovered" historic iteration of the M-144 route designation that was assigned but never actually constructed or posted in the field to the Master List 1913–Present.
October 25, 2020		A listing of what is new or changed on the site today: Added a section containing what could be referred to as "named-designation" routes to the Master List 1913–Present for some routes which didn't have or do not have a route number. These may not be 100% "official" and may be updated over time if more "official" information can be located. For now, they include: BELLE ISLE ROADS – A catch-all listing for the entire network of roads on Belle Isle which were jurisdictionally transferred from the City of Detroit to the State of Michigan in 2014 when the State took over Belle Isle Park as a State Park. These roads are officially classified as Unsigned State Trunklines at present and are included on that page. CAPITOL LOOP – A duplicate listing. It's long been listed under I-496 CL which has seemed to be a secret internal designation used on some internal MDOT maps to denote the Capitol Loop, as if it were a business loop off I-496, which it essentially is. NORTHWESTERN HWY – Before it was designated as BS I-696, M-4, US-10 or M-4, all or portions of Northwestern Hwy did not bear a state trunkline highway designation, so it's listed here and, in the future, a route listing page will be created for it as well. WIARD RD – For less than a year after the US-12 designation was removed from Wiard Rd at Willow Run, this roadway bore no route designation and while nowadays it may been referred to by MDOT as "OLD US-12" until it was jurisdictionally transferred, it seems that during its time as an unsigned trunkline, it was referred to as just Wiard Rd. Made many other updates to the Master List 1913–Present, especially to former routes, including the years the route existed. Updated the links to the MDOT-created brochures for the M-6/South Beltline project and added a link to the commemorative brochure to the November 2004 historical item on the M-6 route listing and also updated some of the weblinks at the bottom of the page Updated the February 1985 historical item on the M-183 route listing.
October 4, 2020		Here's what's updated on the website: Updated the Master List 1913–Present to show the original (or originally-proposed) designation for M-210 at Pewamo was M-21A. Added new June 13, 1927 historical items to the I-94 route listing and the Historic US-112 route listing as well as the Early I-94 listing.
September 30, 2020		Today's website updates include: Updated the May 2, 1927 and the 1928 historical items and added the July 1, 1927 historical item to the US-10 route listing. Updated the 1926 and 1928 historical items and added the May 2 and July 1, 1927 historical items to the M-10 route listing. Updated the Nov 1930 historical item on the M-14 route listing, the US-127 route listing and the US-223 route listing.
September 29, 2020		What's new or changed: Added a new note to the M-123 route listing. Added a new March 21, 1927 historical item to the M-123 route listing. Added a new June 13, 1927 historical item to the M-115 route listing.
September 10, 2020		Here's what's updated on the website: Added a new April 5, 1962 historical item to the US-127 route listing. Added a new February 28, 1955 historical item to the US-1341 route listing. Added new July-August 1969 and 2019–2020 historical items to the M-185 route listing.
September 8, 2020		Today's website updates include: Added a "new style" route listing for M-115 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section and including an actual map of the route of M-115, too! Transitioned the M-137 route listing into a Former M-137 route listing to reflect its transfer to county control in June, corrected the route's southern terminus, and added new Oct 19, 1928 and June 1, 2020 historical items. Also made the necessary changes to the Master List. Added a new Oct 19, 1928 historical item to the M-57 route listing. Added a new Oct 19, 1928 historical item to the M-62 route listing. Updated the M-113 route map to remove M-137 due to it being transferred to local control in 2020. Added a new Oct 19, 1928 historical item to the M-152 route listing.
August 26, 2020		Added additional historical information to the Michigan's Route Markers page regarding a suggestion to change the standard state trunkline marker in 1961.
June 23, 2020		Updated the Apr 19, 1941 historical item on the US-2 route listing.
May 29, 2020		Added the Former M-114 Route Map to the Former M-114 Route Listing showing the route of former M-114 as well as all state trunkline route designations to ever utilize any part of the historic Grand Rapids Beltline System from 1928–present.
April 30–31, 2020		Today's website changes and updates: Added a Dec 6, 1940 historical item on the US-23 route listing. Added a Feb 14, 1944 historical item on th US-127 route listing.
February 24, 2020		Updated the Dec 23, 1961 historical item on the US-131 route listing.
January 11–24, 2020		Here's what's updated on the website: Added a "new style" route listing for I-296 and made the necessary changes to the Routes 250-696 page. This listing features a complete and expanded history section and including an actual map of the route of I-296, too! Updated the Dec 15, 1961 historical item on the US-10 route listing. Updated the 1959 and 1961 and added the Oct 15 1962 historical items on the US-23 route listing. Added a new Nov 21, 1961 historical item to the I-96 route listing. Updated the Dec 5, 1962 historical item on the I-75 route listing. Updated the 1961 (Nov 11–14, Dec 4), 1962 (Mid), and 1962 (Sept) historical items on the Historic US-27 route listing.
January 6, 2020		Happy New Year 2020! This website enters the fourth decade its existed in (1990s, 2000s, 2010s and 2020s). Who knew Scott Oglesby's little challenge back in 1997 would have resulted in this? As this website nears its 23rd birthday, here's what's new: Uploaded "Michigan's Route Numbered Highways, 1990–1991 Edition," the pre-WWW, offline precursor to the Michigan Highways website created using AppleWorks on an Apple IIe computer. Corrected an error in the BS I-94 (Kalamazoo) route listing. Updated and reworked the 1962 historical items and the Oct 29, 1969 historical item on the US-131 route listing.
November 1, 2019		Added an M-343 route map to the M-343 route listing.
September 7, 2019		Updated the M-89 route map to show the addition of M-43 to the route between Richland and Plainwell.
September 4, 2019		Updated the route marker graphic on the M-343 route listing to reflect the actual marker used on the highway itself.
September 3, 2019		Here's what's updated on the website: Related to the myriad Kalamazoo changes: Updated the M-89, I-94, US-131 route listings. Added listings to the Unsigned Trunklines page for OLD M-43, OLD I-94BL/OLD US-131BR, and E MICHIGAN AVE (Kalamazoo). Updated the M-123 route listing to reflect the Tahquemenon Scenic Byway has its Scenic Heritage Route signage replaced by Michigan Byway markers. Also made several other "under-the-hood" and "behind-the-scenes" updates that most folks would never see or notice. If you do see them... you must spend a lot of time on this website...
June 6, 2019, September 1, 2019		Here's what's updated on the website related to the myriad Kalamazoo changes: Created a new M-343 route listing. Updated the M-43, M-96, M-331, BL I-94/BS I-94, and BUS US-131 (Kalamazoo) route listings. Updated the Master List with the above changes.
July 20, 2018		Here's what's new or changed: Officially rededicated the Master List: 1918–Present listing of every state trunkline designation ever used as the Master List: 1913–Present, as the additional five years' worth of data has been being added to the website for some time now. Updated the Introduction page with new highway and roadway length statistics.
July 8, 2018		Today's website updates include: Added new historical items for 1956 and 1963 to the I-696 route listing. Corrected a few typos on the Historic US-112 route listing.
July 3, 2018		Added a new July 1944 historical item to the M-37 route listing.
December 22, 2017		New and updated stuff on the website: Updated the I-69 Recreational Heritage Route listing on the Pure Michigan Byways page to show the route signage has been "converted" from Heritage Route to Byway. Updated the I-69 route listing with the same information as above.
November 23, 2017		Updated and expanded the November 1949 and November 1952 historical items on the M-37 route listing.
November 18–19, 2017		Updates on the site for this weekend include: Added a new July 1935 historical item to the US-2 route listing. Updated the December 1929 historical item and added a new 1930 item to the M-143 route listing.
November 14, 2017		Added a new August 1928 historical item to the M-50 route listing.
November 13, 2017		Today's website updates include: Added a "new style" route listing for M-113 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section and including an actual map of the route of M-113, too! Added and updated the May/June 1938, Summer 1939 and August 1941 historical items on the US-131 route listing. Updated the notes section of the M-185 route listing.
October 31, 2017		New and updated stuff on the website: Added new November 1939 historical items and updated the November 1940 items on the US-31 route listing and the US-131 route listing. Added a new September 1939 historical item to the M-43 route listing.
October 22, 2017		New and updated stuff on the website: Added new December 1943 historical items and updated July 1944 items to the I-94 route listing and the Former M-112 route listing. Added new August 1945 historical items to the I-94 route listing and the Former M-112 route listing. Added new December 1948 and March 1953 historical items and updated the November 1949 item on the Historic US-112 route listing. Added a new March 1950 historical item to the M-78 route listing. Added new April 1950 historical items to the M-86 route listing and the M-78 route listing. Added a new June 1961 historical item to the US-12 route listing.
October 19, 2017		Here's what's new today: Added a new April 1943 historical item to the Historic US-112 route listing. Corrected an errant link to the M-35 route listing on the Route Listings page. (Thanks for the heads-up Jacob!)
October 18, 2017		Today's website updates: Added a September 1939 historical item to the I-94 route listing regarding a revival of the proposed "Detroit–Chicago Superhighway." Added a new 1937 historical item to the Historic US-16 route listing. Added new Fall 1939 and October 1940 historical items to the (day-old) Historic US-112 route listing.
October 17, 2017		After many, many years in the making and three months of research, the now complete Historic US-112 page has been uploaded. It contains a complete narrative historical overview of the route as well as a complete and thorough year-by-year history section. Also added an additional note to the M-112 route listing explaining the existence of that route to its U.S. Highway brother.
October 16, 2017		Here's what's new today: Updated the June 1930–1933 historical item and added a new 1937 item to the Historic US-16 route listing regarding the one-way configuraiton on the "Farmington Cutoff." Made a minor update to the 1937 historical item in the M-47 route listing.
October 13, 2017		Added a June 1934 historical item, added information to the January 1935 items, and updated the September 1935 item on the M-151 route listing.
October 11, 2017		Today's website updates: Added a March 1956 historical item to the US-2 route listing. Added new information to the August/October 1932 historical item on the M-124 route listing.
October 10, 2017		A few historical item updates, all related to the completion of the "Niles Bypass": Added September and November 1956 and August 1957 historical items to the M-60 route listing and revised the June 1957 item. Also added a September 1960 historical item to the M-60 route listing. Added September and November 1956 historical items to the Former BUS US-12 (Niles) route listing and revised the June 1957 item. Added September and November 1956 historical items to the BUS M-60 route listing and revised the June 1957 item.
October 6–8, 2017		Several Pure Michigan Byway-related updates: Added the new M-22 Benzie Manistee Pure Michigan Byway to the Pure Michigan Byways and Scenic Byways & Heritage Routes pages. Updated the M-22 route listing to include the designation of the M-22 Benzie Manistee Pure Michigan Byway. Added the new Top-of-the-Lake Pure Michigan Byway to the Pure Michigan Byways and Scenic Byways & Heritage Routes pages. Updated the US-2 route listing and the BL I-75 (St Ignace) route listing to include the designation of the Top-of-the-Lake Pure Michigan Byway. Updated the U.P. Hidden Coast Recreational Heritage Route listing on the Recreational Byways & Heritage Routes page. Updated the US-2 route listing, M-35 route listing, and the US-41 route listing with additional and updated information on the U.P. Hidden Coast Recreational Heritage Route.
September 13, 2017		New and updated stuff on the website: Added a new November 1956 historical item (replacing an old generic 1957 item) to the US-127 route listing on the completion of the Mason–to–Leslie expressway in Ingham Co.
September 7, 2017		Today's website updates include: Added a "new style" route listing for Former M-151 and made the necessary changes to the Routes 140–159 page. This listing features a complete and expanded history section. Also added links from elsewhere on the site to the new M-151 route listing, where applicable. Added new August 1965 and September 1981 historical items to the US-223 route listing. Added links for US-24A leading to the CONN US-24 (Erie) route listing as the former is a direct predecessor to the latter.
September 4, 2017		A pair of updates for the site: Updated the US-2 route listing with new and additional information on non-freeway milemarking along the route. Added information on the new non-freeway milemarking to the M-28 route listing.
August 30, 2017		Several updates on the site related to a spate of jurisdictional transfers in Grand Rapids: Updated the BUS US-131 (Grand Rapids) and US-131 route listings to reflect the former's complete decommissioning and tranfer to city control. Updated the BS I-196 (Grand Rapids) [now re-titled as BS I-196 (Wyoming)] and I-196 route listings to reflect the former's truncation and transfer of the portion in the City of Grand Rapids to city jurisdiction. Updated the M-45 route listing to reflect the jurisdictional transfer of the entirety of OLD M-45/Fulton St in Grand Rapids to city control. Removed the OLD M-45 route listing and modified the OLD BUS US-131 route listing on the Unsigned Trunklines page. Updated the Master List with the above changes. Unrelated to the Grand Rapids jurisdictional transfers, the Former BS I-96 (Portland) route listing receives a minor update as well.
August 8, 2017		Updates on the site for today include: Added additional information to the Historic US-27 narrative on that route's extension over the Mackinac Bridge for a few years in the late 1950s and a proposal to continue the route all the way to Sault Ste Marie. Also added information on this proposal to the US-27 year-by-year history as well. Added the same information as noted above to the US-2 route listing. Also added some additional information regarding milemarkers on US-2 as well. Added to the Master List a newly discovered planned-but-never-implemented BUS US-2 designation to be co-signed along BL I-75 through St Ignace from 1958.
July 28, 2017		Here are today's site updates: Updated the M-22 route listing and the Leelanau Scenic Heritage Route listing on the Scenic Byways & Heritage Routes page to show the new Michigan Byways markers have been erected on the route as well as its apparent extension south of Empire. Updated the M-109 route listing to show the Leelanau Scenic Heritage Route is now a Pure Michigan Byway. Also corrected the Circle Tour information in the route listing to properly indicate it is a Lake Michigan Circle Tour LOOP route and not the mainline LMCT route in the area.
July 24–26, 2017		A pair of new route listings for the site: Added a "new style" route listing for Former M-111 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section. Added a "new style" route listing for Former M-112 (the Willow Run Expwy and Detroit Industrial Expwy) and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section.
July 16–17, 2017		Today's website updates include: Added a "new style" route listing for Former M-110 and made the necessary changes to the Routes 100–119 page. This listing also features an thoroughly-revised history section. Added a "new style" route listing for Former M-209 and made the necessary changes to the Routes 200–229 page. This listing also features an extensive history section. Added information to the M-109 route listing with information on the D.H. Day Highway designation, including an item in the Notes section, an historical item and an external weblink.
July 13, 2017		New and updated stuff on the website: Updated the M-22 route listing and the Leelanau Scenic Heritage Route listing to note the segment of M-22 between junctions with M-109 is not on the route. Added a May 1993 historical item to the US-31 route listing. Updated the M-109 route listing with a new 2002 historical item denoting the official designation of the Leelanau Scenic Heritage Route and added additional weblinks.
July 12, 2017		Updates on the site for today include: Added a "new style" route listing for M-109 and made the necessary changes to the Routes 100–119 page. This listing also features an overhauled and updated history section. Added new October 1978 and 1980 historical items to the US-131 route listing to signify the removal of I-296 route markers in Grand Rapids.
July 11, 2017		Added a "new style" route listing for Former M-108 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
June 26, 2017		Added May 1927 historical items noting the effective date to each of the route listings of the original 1926 US Highway routes added to Michigan in that year: US-2 route listing US-8 route listing US-10 route listing US-12 route listing Historic US-16 route listing US-23 route listing US-24 route listing Historic US-25 route listing Historic US-27 route listing US-31 route listing US-41 route listing Historic US-102 route listing Historic US-112 route listing US-127 route listing US-131 route listing
June 26, 2017		Updates on the site for today include: Found an earlier iteration of M-123 running between Nunica and Muskegon in Ottawa and Muskegon Cos (the predecessor of M-126) and added a new December 1929 historical item and updated the 1934 item in the M-123 route listing. Added a "new style" route listing for Former M-107 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
June 18, 2017		Added a "new style" route listing for M-106 and made the necessary changes to the Routes 100–119 page. This listing also features a completely verified history section.
June 16, 2017		Here are today's site updates: Added a "new style" route listing for M-104 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section. Added a "new style" route listing for Former M-105 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section. Updated the c.1940–42 historical item on the Historic US-16 route listing.
May 2, 2017		New and updated stuff on the website: Updated the route mileages on all of the listings on the Business Connections 96–496 page. Updated the route mileages on all of the listings in the Signed & Unsigned Connectors listing on the Unsigned Trunklines & Connectors page. Added a note to the BS I-196 (Grand Rapids) route listing noting the eastern end of State jurisdiction is east of the eastern terminus of the route. Added the westbound length to the Capitol Loop route listing and some explanitory text as to why. Added a section on "Connector 5" to the notes section of the M-5 route listing. Added a listing for the Belle Isle Roads to the Unsigned Trunklines & Connectors page.
May 1, 2017		Here are the latest updates: Updated the route mileages on all of the listings on the Business Connections 2–31 and Business Connections 32–94 pages. Added the westbound length to the BUS US-12 (Ypsilanti) route listing and some explanitory text as to why. Revised the northern terminus for CONN US-24 (Woodhaven) and added two additional notes and 2008 and 2012 historical items to the route listing.
April 30, 2017		Today's website updates include: Added a new May 1940 historical item to the Historic US-16 route listing. Updated the route mileages on all of the remaining listings on the Routes 100–119 , Routes 120-139, Route 140-159, Routes 160-179, Routes 180-199, Routes 200-229, Routes 230-249, and Routes 250-696 pages to the nearest one-thousandth of a mile, based on the latest official State of Michigan roadway network data. Updated the route mileage on the US-131 and M-134 route listings. Updated the current fares for Champion's Auto Ferry on the M-154 route listing. Updated the northern terminus and notes section on the M-221 route listing.
April 29, 2017		Another three updates to the website: Added a "new style" route listing for M-103 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section. Made a few minor revisions to the history section of the US-131 route listing. Added a section on "Connector 102" to the notes section of the M-102 route listing.
March 27, 2017		Added a "new style" route listing for M-102 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
March 25, 2017		A trio of updates today: Updated the October 1994 and August 1999 historical items on the M-5 route listing. Updated the Master List with additional information about two proposed uses for the M-9 designation in the 1980s and 90s. Corrected the "State Trunkline Needs, 1960–1980" item in the US-45 route listing. A site visitor pointed out that section was a duplicate of the one from the M-44 route listing. (Oops!) The US-45 information has been uploaded now. —Thanks much wstas32!
February 26, 2017		Here are today's site updates: To reflect the documentation of the second interation of M-13 along present-day M-136 from 1931–1934, new April 1927 and February 1931 historical items are added to the M-13 route listing and the April 1927 and August 1931 items are updated. Additionally, the March 1933 and Janiaru 1935 historical items are updated and expanded on the M-13 route listing. In part due to the updates above, the February 1931 and June 1962 historical items on the M-136 route listing are updated and expanded.
February 21–22, 2017		More "new style" route listings and other updates to the site: Added a "new style" route listing for M-100 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-100, too! Added a "new style" route listing for Former M-101 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section. Added a "new style" landing page for Historic US-102 and made the necessary changes to the Routes 100–119 page. Also made some minor updates to the year-by-year history section of the main Historic US-102 page.
February 18, 2017		Latest updates: Added a few newly-discovered historic route designations to the Master List: CONN US-10 and CONN US-27 –  the wbd-US-10 to nbd US-27 and sbd US-27 to ebd US-10 connector at Clare in the 1960s and early 1970s US-41A or ALT US-41 – proposed, but never implemented at Negaunee and Ishpeming BUS M-78 – proposed to run concurrently with BUS US-27 at Charlotte BUS M-83 – proposed, but never implemented in Flint BL I-196 – proposed, but never implemented at Grand Rapids Updated the Notes sections for the M-54 and M-83 route listings to reflect the original proposal to extend M-83 southerly through Flint instead of designating M-54 along the route.
February 8, 2017		Here's what's changed on the site: Added a "new style" route listing for M-99 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-99, too! Added a new January 1993 historical item to the M-100 route listing.
February 6, 2017		Updated today: After much delay, the long-neglected US-12A routing in downtown Saint Joseph from the 1930s has finally been added to the Master List. More information on this route will be added to the site in the future, but at least now it's documented on the Master List! Many thanks to Marc F. for his repeated and insistent badgering... Added a new January 1963 historical item to the Historic US-27 route listing.
February 4, 2017		Here's some more stuff that's changed or been added: Found yet another former "undiscovered" state trunkline from yesteryear! This time an earlier iteration of M-160 than previously known (1929–1935) at Springport, but never actually signed in the field. Updated the Master List with this new M-160 routing. As of this June, the Michigan Highways website will have been online 20 full years! To celebrate this achievement, I've added some new graphics to the site header image highlighting this fact. Updated the May–July 1960 historical item on the M-55 route listing.
February 3, 2017		Lots more historical item updates today: Added a new June 1931 historical items to the M-65, M-119, M-124, M-125, M-137, M-156, Former M-168, and M-212 route listings. Updated the June-July 1931 historical item on the M-63 route listing. Added a newly discovered historic state trunkline route designation to the Master List: US-41 STUB.
January 30, 2017		Updated the November 1971 historical items and added new September 1971 items to the M-40, M-51 and M-119 route listings.
January 27, 2017		Added "new style" route listings for M-97 and Former M-98 and made the necessary changes to the Routes 90–99 page. These listings also feature completely overhauled and updated history sections!
January 25, 2017		Added a "new style" route listing for M-96 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-96, too! Also added a new July 1926 historical item to the M-99 route listing.
January 23, 2017		Updated the 1961 and January 1966 historical items and added the January 1962 item on the M-37 route listing.
January 21, 2017		Updated the October 1940 historical items on the US-12 and BUS US-12/BL I-94 (Battle Creek) route listings.
January 20, 2017		A pair of updates: Updated the Mid-1939 and August 1942 historical items on the M-54 route listing to reflect the newly "discovered" US-2A designation at Ironwood. Updated the historical listing on the BUS US-2 (Ironwood) route listing.
January 19, 2017		Here's what's updated today: "Discovered" a heretofore unknown US-2A designation at Ironwood which existed from 1934–1939 and updated the Master List and various items on the US-2 route listing. Updated two 1933 historical items and added new November 1932, February 1933, and December 1933 items to the US-2 route listing. Added details of a planned-but-never-implemented upgrade to the route of BL I-94 at Battle Creek to the Notes and History sections of the BL I-94 (Battle Creek) route listing. Added missing NHS information to the M-94 and M-95 route listings.
January 18, 2017		A trio of updates today: Updated the October 1936 historical item and completely overhauled and rewrote the March/August 1937 item on the US-12 route listing. Added the history of the historic US-12A route designation in downtown Battle Creek to the beginning of the BUS US-12/BL I-94 (Battle Creek) route listing, as it was a predecessor route to the existing one. Added a newly discovered US-12A route designation at Fort Custer to the Master List.
January 17, 2017		Added new July 1927 historical items to the Historic US-25, Historic US-16, Historic US-112, US-10 and M-53 route listings.
January 16, 2017		After months of research, an entirely overhauled and expanded I-96 route listing debuts. A complete historical timeline of ALL routes which eventually became part of I-96 has been incorporated. Additionally: Added new historical information to the July 1957 and January 1958 items on the US-23 route listing. Updated all of the 1957 historical items and added new January 1958 and January 1961 items to the Historic US-16 route listing. Added a new October 1958 historical item to the US-31 route listing. Updated the October 1958 historical item and added a new October 1959 item to the M-20 route listing.
January 15, 2017		Four updates today: Updated the November 1976 historical item on the I-275 route listing. Updated the October 1966 historical item on the US-127 route listing. Added a September 1978 historical item and updated the 1982, November 1987 and July 1988 items on the I-96 route listing. Added a Fall 1990 historical item and updated the July 1991 item on the I-69 route listing.
January 11, 2017		A pair of updates today: Added an October 1967 historical item to the M-14 route listing. Updated the July 1971 and September 1974 historical items on the I-96 route listing.
January 10, 2017		Here's the new stuff: Updated the M-5 and OLD BS I-96 (unsigned trunkline) route listings to show the extension of M-5 into downtown Detroit and the resultant decommissioning of the OLD BS I-96 internal designation. Also recalculated the length of M-5 based on its newly-signed mileage. Updated the date on the October 1969 historical items on the M-37 and M-44 route listings. Added a February 1972 historical item to the M-6 route listing.
January 9, 2017		The latest website updates and additions: Added a new November 1968 historical item to the M-8 route listing. Added a new November 1968 historical item to the I-275 route listing. Added a new November 1968 historical item to the I-69 route listing. Added a new November 1968 historical item to the US-23 route listing. Added a new November 1968 historical item to the US-131 route listing. Updated the June 1965 historical item on the Historic US-27 route listing. Added a new July 1963 historical item and updated the December 1963 item on the I-696 route listing. Updated the October 1963 historical items on the I-96 and I-196 route listings and added a new October 1963 item to the US-31 route listing. Updated the December 1963 historical items on the I-196 and US-31 route listings.
January 5, 2017		Added a new April 1963 historical item to the I-96 and I-196 route listings.
January 4, 2017		Today's changes, additions and updates: Updated the notes section of the M-45 route listing. Added new November 1961 historical items to the US-131 route listing and BUS US-131 (Grand Rapids) route listing. Updated the November 1961 item and added a new August 17, 1961 historical item to the Historic US-27 route listing. Updated the August 1961 historical items on the BUS US-127 (Ithaca), BUS US-127 (Alma) and BUS US-127 (Saint Louis) route listings. Added new August 10 and November 10, 1961 historical items and updated the November 25, 1961 item on the BUS US-127 (Mount Pleasant) route listing. Updated the November 1961 historical item on the BUS US-127 (Clare) route listing. Updated the notes section on the BUS US-127 (Jackson) route listing. Major updates to the BL I-94 (Battle Creek) and M-37 route listings—length, notes, and 2005 and 2015 historical items—due to the 2015 closure and rerouting of a portion of the route at Battle Creek.
January 2–3, 2017		Here's what's changed or been added to the website today: Added new September 1961 historical items and updated the November 1961 items on the I-196 and Historic US-16 route listings. Added a new July 1960 historical item to the Historic US-27 route listing. Added a new December 1961 historical item and updated the October 1962 and December 1962 items on the US-131 route listing and BUS US-131 (Grand Rapids) route listing. Added November 21, 1961 historical items to the I-96, I-196 and Historic US-16 route listings.
January 1, 2017		Happy New Year! Today's updates and changes to the website: Updated the November-December 1962 historical item on the I-75 route listing. Added new Dec 21, 1961 and Mid 1962 items and updated the December 1962 historical item to the I-96 and Historic US-16 route listings. Updated the September and November 1962 historical items on the US-23 route listing.
December 27, 2016		The changes uploaded to the site today: Added new information to the the December 1960 and August 1961 historical items in the Historic US-27 route listing. Added new information to the November 1960 historical item on the US-23 route listing. Minor update to the last paragraph on the Historic US-16 description. Added new July 1961 historical items and updated the Late 1962 items on the US-131 route listing and BUS US-131 (Grand Rapids) route listing.
December 3–4, 2016		Here's what's changed or been added to the website today: Updated the August 1963 historical listings and added new September 1963 items to the I-96 and US-31 route listings. Updated the December 1962 historical items on the I-96 and Historic US-16 route listings. Added a new July 1963 historical item to the I-96 route listing. Updated the December 1963 historical item and added a new February 1964 item to the I-496 route listing. Added a new February 1965 historical item to the I-194 route listing.
December 2, 2016		Today's list of website updates and additions: Updated the July 1985 and November 1995 historical items in the Historic US-27 route listing. Updated the Notes section and the July 1985 and July 1991 historical items on the BUS US-127 (Lansing) route listing. Added a new June 1991 historical item to the Capitol Loop route listing.
December 1, 2016		Added new July 1986 and June 1989 historical items and updated the October 1989 item in the Capitol Loop route listing.
November 30, 2016		Another raft of updates to the website today: Added a June 1988 historical item to the I-696 route listing. Added a June 1988 historical item to the US-31 route listing. Updated November 1971 historical items on the M-40, M-51 and M-119 route listings. Updated the November 1971 historical items on the I-69 and Historic US-27 route listings. Added October 1968 historical items and updated the August 1971 and December 1971 items on the M-21 and M-78 route listings. Added December 1971 and June/September 1972 historical items to the M-21 route listing. Updated the May 1977 and September 1997 historical items on the M-1 route listing.
November 29, 2016		Today's site updates: Added new October 1978, June 1981 and June 1986 historical items to the US-31 route listing. Added a new October 1979 historical item to the I-296 route listing. Added new June 1981, October 1983 and December 1987 historical items to the I-69 route listing. Added a new 1982–83 historical item to the Historic US-27 and I-69 route listings. Added a new June 1981 historical item to the US-12 route listing. Added a new June 1981 historical item to the US-131 route listing. Added a new June 1983 historical item to the US-2 route listing. Added a new October 1985 historical item to the US-10 route listing. Added a new June 1986 historical item to the Historic US-33 route listing.
November 27, 2016		Today's updates and changes to the website: Added new June 1975 and November 1975 historical items and updated another November 1975 item on the US-10 route listing. Updated a November 1975 historical item on the M-115 route listing. Added new November 1975 and updated existing November 1975 historical items on the BUS US-10 (Clare) route listing. Added a new June 1974 historical item and updated the 1991 item on the Historic US-27 route listing. Revised a paragraph on the Historic US-27 page regarding an additional attempt to truncate the route to Fort Wayne in 1974. Added new June 1975, July 1976, and June 1978 historical items to the US-31 route listing. Added a new July 1977 historical item to the US-223 route listing.
November 26, 2016		The following changes to the website were made today: Added a new November 1970 historical item to the US-41 and BUS M-28 route listings. Added new June 1971 historical items and greatly revised the October 1971 and June 1973 items on the US-45 route listing and M-26 route listing. Added a new November 1973 historical item to the I-69 route listing. Added a new November 1973 historical item to the Historic US-27 route listing.
November 25, 2016		Today's updates and changes to the website: Added a newly "discovered" (albeit never signed) trunkline route designation to the Master List—TEMPORARY US-10. Added a new October 1969 historical item and updated the 1970 item on the US-10 route listing. Added a new October 1969 historical item and updated the 1970 item on the M-1 route listing. Added a new October 1969 historical item to the US-131 route listing. Updated and added new information to the Oct-Nov 1967 historical item and augmented the June-December 1968 historical item on the US-23 route listing. Added a new October 1969 historical item to the US-41 and BUS M-28 route listings. Added a new 1970 historical item to the M-53 route listing. Added new November 1970 historical items and updated the existing December 1970 items on the I-69 route listing and the Historic US-27 route listing. Added a new 1970 historical item to the M-8/Davison Frwy route listing. Added a new January 1970 historical item to the I-275 route listing.
November 24, 2016		Today's site updates: Added a new June 1970 historical item to the M-143 route listing. Updated the November 1969 historical item in the M-52 route listing. Added a new 1970 historical item to the M-43 route listing.
September 22, 2016		Made minor modifications and updates to the M-35: The Highway Henry Ford Stopped article.
September 21, 2016		Converted the Early US-12, Willow Run, Detroit Industrial & Edsel Ford Freeways page from separate year-by-year histories of different segments of what became I-94 into one chronological history of I-94 before I-94 existed. (Mirrors the first portion of the history section of the I-94 route listing.)
September 8, 2016		Made several updates to the M-22 route listing, inclduing adding images of the new "M-less" M-22 route markers (to deter stolen signs) and another chapter in the long-running feud between the State of Michigan and M22, LLC over the ability to copyright the design of the M-22 route marker.
July 25, 2016		Updated the following pages and listings with information on the new West Michigan Pike Historic Byway which debuted today: Pure Michigan Byways (Heritage Routes) Historic Byways & Heritage Routes US-12 route listing I-94 route listing BL I-94 (Benton Harbor-St Joseph) route listing M-63 route listing I-196 route listing US-31 route listing BL I-196 (South Haven) route listing BL I-196 (Holland) route listing BUS US-31 (Muskegon) route listing BUS US-31 (Whitehall-Montague) route listing BUS US-31 (Pentwater) route listing US-10 route listing
July 9, 2016		Added a new August 1961 historical item to the Historic US-27 route listing.
July 8, 2016		Added a new June 1958 historical item to the I-94 route listing and a new Nov 1957 historical item to the M-8/Davison route listing.
July 7, 2016		Updated the 1936 historical items in the US-23 and M-72 route listings. Also updated the M-171 information in the Master List.
June 30, 2016		Added a neat new tidbit I just discovered about the genesis of the route of M-49 through Hillsdale Co to the M-49 route listing!
June 15, 2016		Added a "new style" route listing for M-95 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-95, too! Also created the M-95: Republic Mine Reroute (1958) page with a slider function to compare the 1955 and 1977 USGS Topographic maps for the Republic area.
June 8–9, 2016		A few updates to the website dealing with M-44: Made several updates throughout the M-44 route listing to reflect its re-truncation in the Grand Rapids area. Added an actual map of the route of M-44 as well. Updated the M-21, M-37 and OLD M-21 (East G.R.) route listings to reflect the M-44 changes in the Grand Rapids area. Also recalculated the lengths for all current state trunkline routes from US-24 through M-99 to the one-thousandth mile using official State of Michigan geographic information system data.
June 4–5, 2016		Here are the updates to the site from the weekend: Almost completely overhauled and updated the history section of the M-45 route listing (in conjunction with the new M-95 route listing, currently under construction). Added a new 1934 historical item and augmented the 1935 item on the US-45 route listing. Added new information to the 1964 historical item on the M-50 route listing.
June 1, 2016		Added a "new style" route listing for M-94 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-94, too! Also added a new 1976 item and made updates to the 1983 item in the history section of the US-2 route listing.
May 30-31, 2016		The latest updates and changes to the site: Added a new Jan 30, 1959 historical item to the I-75 route listing. Added a new Oct 1, 1959 historical item to the I-75 route listing.
May 26-27, 2016		Today's website updates and changes: Added an additional 1948 historical item to the US-2 route listing. Updated and added new information in the 1941, 1949 and 1960 historical items in the M-28 route listing. Updated the 1956–57 historical item in the M-69 route listing. Added a new route listing for Former M-178 which existed 1928–1941. Added information to the 1947–48 historical item to the FH-13 route listing.
May 23–24, 2016		After months of research, an entirely overhauled and expanded I-94 route listing debuts. A complete historical timeline of ALL routes which eventually became part of I-94 has been incorporated. Also updated: Added additional historical information to the 1922 historical item in the M-15 route listing Added a 1934 historical item to the FH-13 route listing.
May 22, 2016		Today's updates and changes to the website: Updated and added several new historical items to the US-12 route listing based on similar updates and additions being prepared for an overhauled I-94 route listing. Updated the M-5 route listing to indicate the apparent extension of the signed route of M-5 along Grand River Ave into downtown Detroit. Updated the 1973 and 1974 historical items in the M-25 route listing. Updated the 1947 and 1949 historical items in the M-29 route listing.
March 27, 2016		Changes on the site today: Updated the 1984 historical item in the I-69 route listing. Updated the 1965 historical items in the M-66 and M-78 route listings.
March 26, 2016		A pair of changes on the site today: Added additional information to the 1960 and 1963 historical items on the US-131 route listing. Updated the 1964 historical item in the US-31 route listing.
March 24, 2016		Here's what's new on the site: Added new historical items from 1948 to the US-31 and Historic US-33 route listings. Added new or updated existing historical items from 1949, 1951, 1952, 1953 to the US-12 route listing.
March 19, 2016		The following changes to the website were made today: Added the exact date for the completion and opening of the Davison Expwy to the 1942 entry in the history section of the M-8 route listing. Also added a "then-and-now" set of photos showing the Davison at Brush St from 1942 and 2015 to the M-8 route listing.
March 18, 2016		Made various updates and added new historical information to the 1930, 1933 and 1934 entries of the historical section of the M-153 route listing.
March 17, 2016		Added two new proposed-but-seemingly-never-implemented route designations to the Michigan Highways Master List: a second M-114 designation and a BUS M-14 routing, both at Ann Arbor.
March 15, 2016		Added a depiction of the 1964–1974 era exit signs that were posted along I-94 as part of the State Highway Dept's first attempt at numbering and signing interchanges in the 1960s to the Other Route Markers section of the Michigan's Route Markers page.
March 14, 2016		The following changes to the website were made today: Added a new 1966 historical item to the US-127 route listing. Augmented and updated the 1965–66 historical items on the I-194 route listing. Added a new 1966 historical item to the I-696 route listing.
March 13, 2016		The following changes to the website were made today: Updated several historical items on the US-10 route listing. Made a few minor updates to some historical items on the I-75 route listing. Added additional information to the 1961, 1964 and 1965 historical items on the M-39 route listing.
February 8, 2016		Updated an existing (Aug 1, 1957) and added a new (Nov 4, 1959) historical item to the I-96 and Historic US-16 route listings.
February 7, 2016		The following changes to the website were made today: Added one new (Feb 1957) and updated an existing (June 30 1958) historical item to the I-75 route listing. Updated an historical item (June 30 1958) to the US-23 route listing. Updated an historical item (July 3–7, 1958) to the US-131 route listing. Updated an existing (Nov 25, 1957) and added a new (July 3, 1958) historical item to the US-41 and M-28 route listings.
February 4, 2016		Uploaded a refreshed header image for the site.
January 24, 2016		Updated the July 27, 1971 entry in the history section of the I-96 route listing.
January 20, 2016		Updated the Oct 5, Nov 2 1962 entry on the US-131 route listing.
January 19, 2016		The following changes to the website were made today: Added new historical items (1960, 1974 and 1975) in the history section of the I-96 route listing. Updated the Nov 1960 entries on the US-31 route listing and Historic US-33 route listing pages. Added a new historical item (1974) in the history section of the I-196 route listing.
January 14, 2016		The following changes to the website were made today: Added a new historical item (1956) in the history section of the US-31 route listing. Made additions and updates to the Historic US-33 route listing and the US-31 Freeway in Berrien County in-depth article. Added a new historical item (1957) to the history section of the M-21 route listing.
January 12, 2016		Updated and expanded an historical item (1959) in the history section of the US-127 route listing. Also added a new historical item (1966) to the M-50, BL I-94 (Jackson) and BUS US-127 (Jackson) route listings.
January 11, 2016		Added new historical item (1966) to the history sections of both US-127 and US-223 route listings.
January 10, 2016		Added a new historical item (1948) to the history of Former US-16.
December 31, 2015		Updated the Master List of all state trunkline designations in history with the designation of the Bancroft Spur from the 1930s: M-192.
November 30, 2015		Added a "new style" route listing for M-93 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-93, too!
November 26, 2015		Added a "new style" route listing for Former M-92 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section!
November 25, 2015		Completely overhauled, augmented and updated the history section of the M-49 route listing to better match the historical timelines of related routes M-36, M-92 and M-106.
November 23, 2015		Added actual route maps to the following route map pages: M-86 Route Map M-88 Route Map M-89 Route Map M-90 Route Map M-91 Route Map
November 22, 2015		Today's site updates: Added a little bit of content to the County Routes & Listings landing page and the County Route Systems page. Added a new historical note to the M-36 route listing.
November 21, 2015		Added a "new style" route listing for M-91 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section!
November 20, 2015		Today's site updates: Added the Mackinaw Scenic Shortway Route marker to the Other Routes section of the Route Markers page. Added the new Pure Michigan Byway route marker to the (similarly retitled) Pure MIchigan Byway/Heritage Route section of the Route Markers page. Added additional historic information to these pages: Historic US-16 route listing M-66 route listing I-96 route listing
November 19, 2015		More new and updated historical information added today: Added some new historical information to the Early I-94 page, which details the historical development of what is now I-94 prior to its designation as I-94. Updated the M-66 route listing and the M-14 route listing to add a more precise date for the decommissioning of M-14 and its replacement by M-66 in mid-Michigan. Added a new historical tidbit to the M-94 route listing.
November 17, 2015		Some new historical information added today: Made updates to the history in the BUS US-2 (Ironwood) route listing giving a precise date when this route was designated along what had been M-54 through the city. Also updated the M-54 route listing with the same information. Added some additional historical information to the US-31 route listing and M-140 route listing regarding the completion and opening of the South Haven bypass in 1942. Enhanced the FH-13 (Hiawatha NF) route listing with complete historical details, weblinks and other information.
November 16, 2015		A pair of updates for today: Added an interesting historical note to the M-28 route listing Notes section on a proposal to realign M-28 between Newberry and Munising, along with an accompanying map showing the proposal. Added a heretofore unknown M-148 route designation to the Master List—to have served as an access route into Muskegon State Park via North Muskegon, but was likely never signed in the field.
November 13, 2015		A pair of updates for today: Updated the Master List with an earlier incarnation of M-169 than had been previously known. This route was initially designated as "M-36 STUB," although it was highly unlikely it was ever signed as such in the field. Both the M-36 STUB and its eventual replacement, the newly-discovered first iteration of M-169, have been added to the list. Added a "new style" route listing for M-90 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section!
November 12, 2015		Added "new style" route listings for M-89 and M-134 and made the necessary changes to the Routes 80–89 and Routes 120–139 pages. These listings also feature completely overhauled and updated history sections!
November 3–8, 2015		Added "new style" route listings for M-84, M-85, M-86, Former M-87, and M-88 and made the necessary changes to the Routes 80–89 page. These listings also feature completely overhauled and updated history sections! Also added an entry for a newly-discovered M-163 designation from the early 1930s to the Michigan Highways Master List.
October 31, 2015		Made some updates to the M-231 route listing, including adding three pages of photos and a time-lapse video made from a bicycle five days prior to its opening to traffic. M-231 opened to traffic on October 30.
October 28, 2015		Added a "new style" route listing for M-83 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section! Also made a few historical corrections/updates to the M-81 and M-82 route listings and added an M-231 Route Map to that listing as well.
October 26, 2015		Added a "new style" route listing for M-82 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section! Also added additional information to the M-231 route listing regarding its dedication, non-motorized pathway and impending opening at the end of the week.
October 25, 2015		Added a "new style" route listing for M-81 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section!
October 16, 2015		Based on feedback from a site visitor, a few corrections were made to the text on the Pure Michigan Byways page. –Thanks Michael!
October 13, 2015		M-231 in Ottawa Co is scheduled to open in the next few weeks. I've updated and/or overhauled the following M-231-related pages: M-231 Route Listing – updated and expanded, now using the "new style" route listing design on its own page US-31 Freeway in Ottawa County – updated and slightly expanded Master List – changed M-231 from "FUT" (Future) to "CUR" (Current)
October 13, 2015		M-22 is selected as the No.1 Best Scenic Autumn Drive in USA Today's 2015 Reader's Choice Award Poll and the M-22 Route Listing is updated to reflect the award.
October 12, 2015		Made major updates to the Pure Michigan Byways (formerly the Heritage Routes) pages, including adding the new Pure Michigan Byways route marker, focusing: Pure Michigan Byways home Scenic Byways & Heritage Routes Historic Byways & Heritage Routes Recreational Byways & Heritage Routes Added information about the new M-134 North Huron Byway Modified the M-134 Route Listing to reflect the new byway designation
August 17, 2015		Added a "new style" route listing for M-80 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section!
August 7, 2015		Added "new style" route listings for M-78 and M-79 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections! Also made some significant alterations to the history sections for the following: M-21 route listing Historic US-27 route listing I-69 route listing I-75 route listing I-94 route listing I-96 route listing US-131 route listing I-496 route listing
August 7, 2015		Added some new historical information to the US-223 route listing.
August 2, 2015		Added a "new style" route listing for M-77 and made the necessary changes to the Routes 70–79 page. This listing also features a completely overhauled and updated history section!
August 1, 2015		Added "new style" route listings for Former M-70 and Former M-76 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections! Also made some significant alterations to the history section of the M-55 listing.
July 30, 2015		Added "new style" route listings for I-75 and M-75 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections!
July 29–30, 2015		Updated the history sections of the M-13 route listing, US-23 route listing, US-31 route listing(several new historical updates and additions), and the I-696 route listing.
July 27–28, 2015		More updates and additions to the site today, including: Updates to the history section of the US-2 route listing. An update to the history section of the M-48 route listing about the final segment of unpaved state trunkline mileage in the entire state to be hard-surfaced in 1962. Added even more updates to the history sections of the I-94 route listing, the Historic US-16 history page, and the Historic US-27 history page.
July 25–26, 2015		Updates some of the historical information on the following route listings: US-12 route listing. US-23 route listing. US-31 route listing. I-94 route listing. I-275 route listing. I-375 route listing.
July 20, 2015		Made the following changes, updates and corrections: Added links to the Intercounty Highway System Map and Suggestions for Potential Future Additions to the Intercounty Highway System map to the Intercounty Highways and Maps pages. Updated the Official Michigan Maps: Christopher Bessert Collection page. Added some new sources to the Sources & Credit page. Made a few edits to the Master List, including adding a possible BUS US-27 routing at Coldwater based on internal MDSH maps. Updated the history of the Early Willow Run, Detroit Industrial & Edsel Ford Freeways.
July 18, 2015		Made the following changes, updates and corrections: Added "new style" route listings for M-72 and M-73 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections! Added a "new style" route listing for Former M-208 featuring a complete history section. Found an older routing of M-97 in Oscoda Co from the 1920s and added it to the M-97 route listing also updating the M-33 route listing as well. Located some "official" information on the "un-signing" of I-296 in Grand Rapids and added it to the I-296 route listing.
July 10, 2015		Added a "new style" route listing for M-71 and made the necessary changes to the Routes 70–79 page. This listing also features a completely overhauled and updated history section!
July 6, 2015		Added a "new style" route listing for M-69 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
July 5, 2015		Added a "new style" route listing for I-69 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
July 4, 2015		Added a "new style" route listing for M-68 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
July 3, 2015		Added "new style" route listings for M-66 and M-67 and made the necessary changes to the Routes 60–69 page. These listings also feature completely overhauled and updated history sections! Also added new historical entries to the M-51 and M-53 route listings.
April 17, 2015		Added udpates to the following route listings, mostly with regard to jurisdictional transfers: M-24 – updated the listing with the delayed transfer of a segment of the 1997 extension in Caro from village to state control in 2001. US-27 & BUS US-127 (St Johns) – reflecting the actual transfer date of Price Rd as the temporary route for US-27 and the eventual route for BUS US-(1)27 at St Johns in 1996. US-31 – added some language regarding the "temporary" transfer of Napier Ave in Berrien Co as well as added the actual date of transfer for OLD US-31 at Scottville in 1997. M-32 – reflecting the transfer of a segment of OLD M-32 in eastern Otsego Co to local control. M-50 – added the actual transfer date for the M-50 turnback in Monroe in 1996. M-53 – reflecting the first jurisdictional transfer of a portion of OLD M-53 at Romeo in 2001. M-66 & M-72 – reflecting the jurisdictional transfer of OLD M-66/M-72 in Kalkaska in 1996. M-93 – reflecting the relocation of its southern terminus at Camp Graying in 2012. M-99 – reflecting the route change through downtown Hillsdale in 2007. US-131 – reflecting the jurisdictional transfer of a segment of OLD US-131 in Montcalm Co in 1996. M-217 – added some more information and the precise date of the jurisdictional transfer BL I-94 (Jackson) – reflecting the relocation of its eastern terminus east of Jackson in 2013. OLD US-27 (Eaton Co) – reflecting the transfer of half of the route in 2008. OLD US-131 (Mecosta-Osceola) – reflecting the transfer of the route south of Reed City.
March 13, 2015		Added a "new style" route listing for M-65 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
March 12, 2015		Updated the Tahquamenon Scenic Byway listing on the Scenic Heritage Routes page as it transitions from the old Tahquamenon Scenic Heritage Route name. Also updated the M-123 Route Listing to reflect the rebranding of the byway. Additionally checked all of the external links for each of the Heritage Route listings on the main Heritage Route, Scenic Heritage Route, Historical Heritage Route, and Recreational Heritage Route pages. Also added Heritage Route and Great Lake Circle Tours marker images to each of the individual route listings that feature mileage on those routes.
March 11, 2015		Updated the history section for the M-103 route listing with some "new" historical information.
March 9, 2015		Based on feedback from a site visitor, uploaded several minor corrections to a few newly-updated pages. —Thanks much Tom S!
March 5, 2015		Updated the Heritage Routes (Pure Michigan Byways) page to reflect passage of legislation rebranding of the program to the Pure Michigan Byways. Also added a "Pure Michigan Byways" category to each individual route listing page for all highway routes in the byways program. Additionally, made a few updates to the Lake Michigan Circle Tour and Lake Superior Circle Tour pages as well.
March 4, 2015		Added a "new style" route listing for M-64 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
March 1, 2015		Checked and updated many of the external links in the various In Depth: News & Articles section of the website.
February 28, 2015		Uploaded a new header graphic for the entire site. I figured a website on Michigan highways should at least have a graphic depiction of the State of Michigan in its header.
February 23, 2015		Added a "new style" route listing for M-63 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section! Also created a new M-63: Klock Rd Interchange Animation page with an looping animation of aerial images showing the interchange before and after its removal in 2001–02.
February 22, 2015		Added a "new style" route listing for M-62 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
February 21, 2015		Added a "new style" route listing for M-61 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section! Also added a bits of new route history to both the M-143 route listing and the M-109 route listing.
February 19, 2015		Added a "new style" route listing for M-60 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
February 17, 2015		Added a "new style" route listing for M-59 and made the necessary changes to the Routes 50–59 page. This listing also features a completely overhauled and updated history section!
January 17, 2015		Added a "new style" route listing for M-58 and made the necessary changes to the Routes 50–59 page. This listing also features a completely overhauled and updated history section!
January 15, 2015		Added a "new style" route listing for M-57 and made the necessary changes to the Routes 50–59 page. This listing features a completely overhauled and updated the history section, too!
January 14, 2015		Happy New Year! Completely overhauled and updated the history section for the M-55 route listing, easily tripling the amount of information it contained.
December 1, 2014		Added new historical information to the Historic US-27, US-31, Historic US-33, and I-69 route listings. Added a "new style" route listing for M-55 and made the necessary changes to the Routes 50–59 page.
September 30, 2014		Added "new style" route listings for M-53 and M-54 and made the necessary changes to the Routes 50–59 page.
September 17, 2014		Uploaded "new style" versions of the placeholder pages for Routes 10-19, Routes 20-29, Routes 30-39, and Routes 40-49. No new content or information added, just making these pages match the new overall site design.
August 28, 2014		Added a "new style" route listing for M-52 and made the necessary changes to the Routes 50–59 page.
August 16, 2014		Several updates across the website: Added a "new style" route listing for M-51 and made the necessary changes to the Routes 50–59 page. Added information on the 2014 "bridge slide" to the M-50 route listing. Added links to the Niles Area Trunklines Map, 2010– to the US-12, Former BUS US-12 (Niles), US-31, Former BUS US-31 (Niles), Historic US-33, M-51, M-60, BUS M-60, M-139, and M-140 route listings.
May 21, 2014		Added a "new style" route listing for M-50 and made the necessary changes to the Routes 50–59 page. Added several links to historic bridge articles to the M-28 route listing weblinks section.
May 20, 2014		Added "new style" route listings for M-47, M-48, and M-49 and made the necessary changes to the Routes 40–49 page. Also made very minor tweaks to dozens of pages sitewide, inserting the HTML values for fractions (e.g. "½" instead of "1/2") and other similar changes.
May 15, 2014		Added links to the relavent Great Lakes Circle Tour pages to the new Great Lakes Circle Tour website.
April 29, 2014		Added a "new style" route listing for M-46 and made the necessary changes to the Routes 40–49 page.
March 19, 2014		Added "new style" route listings for M-44, US-45 and M-45 and made the necessary changes to the Routes 40–49 page.
March 11, 2014		Updated the link to the official Old Mission Scenic Heritage Route website on the Scenic Heritage Routes page.
March 3, 2014		Added a "new style" route listing for M-43 and made the necessary changes to the Routes 40–49 page. Also added a new entry to the history section of the M-37 route listing.
March 2, 2014		Added "new style" route listings for US-41 and M-42 and made the necessary changes to the Routes 40–49 page. Also added updated and new historical information and other data for the US-2, M-26, M-28, and M-35 route listings.
March 1, 2014		Added a "new style" route listing for M-40 and made the necessary changes to the Routes 40–49 page.
February 27, 2014		Added "new style" route listings for M-37, M-38 and M-39 and made the necessary changes to the Routes 30–39 page.
January 13, 2014		HAPPY NEW YEAR! Added a "new style" route listing for M-36 and made the necessary changes to the Routes 30–39 page.
December 26, 2013		Added "new style" route listings for M-33, M-34 and M-35 and made the necessary changes to the Routes 30–39 page.
December 25, 2013		MERRY CHRISTMAS! Added a "new style" route listing for M-32 and made the necessary changes to the Routes 30–39 page.
December 3, 2013		Added "new style" route listings for M-30 and US-31 and made the necessary changes to the Routes 30–39 page. Also added new historical information to the US-31 route listing as well.
November 29, 2013		Added information on the proposed relocation of M-28 in the Marquette area to the M-28 route listing as well as the M-28: Possible Relocation near Marquette map to both the Maps page and the M-28 route listing. Additionally, the erroneous M-24 route listing was fixed with many thanks to Michael G. for the heads-up on that!
November 13, 2013		Added additional statistics on the numbers of Michigan Lefts in the state and left-turn crash statistics from the FHWA to the Michigan Left Turn page. Added "new style" route listings for M-28 and M-29 and made the necessary changes to the Routes 20–29 page.
November 4, 2013		Added a "new style" route listing for M-27 and made the necessary changes to the Routes 20–29 page.
November 3, 2013		Added "new style" route listings for M-26 and US-27 and made the necessary changes to the Routes 20–29 page.
November 2, 2013		Made minor updates to the Introduction page. Also added "new style" route listings for US-23, US-24, M-24, and M-25 and made the necessary changes to the Routes 20–29 page.
November 1, 2013		Created a "before and after" animated map of the US-131 Constantine Bypass and included links to it on the following pages: US-131 Route Listing BUS US-131 (Constantine) Route Listing Maps page
October 30, 2013		The US-131 bypass of Constantine opened to traffic today, which necessitated the following site updates: Updated the mainline US-131 route listing to reflect the various changes. Created a new BUS US-131 (Constantine) route listing. Added Constantine's new BUS US-131 routing to the Master List: 1918–Present.
October 28, 2013		Added "new" historical information regarding the history of the state route marker to the Michigan's Route Markers page. Also added a "new style" route listing US-23 (including adding some "new" historical information regarding State Highway Dept plans for the route of US-23 during the 1960–1980 timeframe) and made the necessary changes to the Routes 20–29 page. Additionally, revised the article "The Tug-of-War That Was the US-23 Freeway" to use the past tense to more accurately protray it in a historical light, as the project has been officially cancelled for over a decade.
October 27, 2013		Added "new style" route listings for M-21 and M-22 and made the necessary changes to the Routes 20–29 page. Also began added "new" historical information regarding State Highway Dept plans for individual trunkline routes during the 1960–1980 timeframe to the US-2, US-12, M-13, M-14, M-15, M-17, M-18, M-19, M-20, M-21, and M-22 route listings. In addition, new pieces of historical information were added to the M-1, M-8, M-10, Historic US-16, and I-96 route listings.
October 26, 2013		Overhauled the National Highway System (NHS) page in the In Depth section to include the major changes to the system implemented under the MAP-21 transportation funding legistlation enacted in 2012. Also added a "new style" route listing for M-20 and made the necessary changes to the Routes 20–29 page.
October 25, 2013		Added a "new style" route listing for M-19 and made the necessary changes to the Routes 10–19 page. Also overhauled the National Highway System (NHS) information for each route from 1 through 19, including: M-1, M-3, US-10, US-12, M-13, M-15, M-17 , and M-19. As route listings are migrated to the "new style," the NHS information (among all of the other sections) will be revised with the new additions to the NHS under MAP-21.
October 22, 2013		Added a "new style" route listing for M-18 and made the necessary changes to the Routes 10–19 page.
October 1, 2013		Modified the M-108 route listing into the Former M-108 route listing to reflect its transfer to local control in 2010. (Not sure why this one slipped through the cracks!) Thanks to Dave S for pointing out the oversight!
September 3, 2013		Added "new style" route listings for US-16 & M-16 and M-17 and made the necessary changes to the Routes 10–19 page.
August 28, 2013		Added a "new style" route listing for M-15 and made the necessary changes to the Routes 10–19 page.
August 12, 2013		Updated weblinks for two of the NWMCOG-maintained Heritage Routes: M-22: Leelanau Scenic Heritage Route and M-119: Tunnel of Trees Scenic Heritage Route. —Thanks Michelle for the heads-up! Also added a quick-reference table of the various Heritage Routes to the main Heritage Routes (Michigan's Byways) page.
July 23, 2013		In what seems to be a recurring theme, another site visitor wrote in to report a few broken links on the Intercounty Highways page, which have been corrected. —Thanks Mike G for the heads-up!
July 23, 2013		Made a few corrections to some of the history of the Willow Run Expressway on the Early Willow Run, Detroit Industrial & Edsel Ford Freeways page. —Thanks Warren for the heads-up!
July 17, 2013		Corrected a typo on the History of Michigan Roads (page 2). —Thanks Steven for the heads-up!
July 8, 2013		Added "new style" route listings for M-13 and M-14, and made the necessary changes to the Routes 10–19 page.
July 5, 2013		Added "new style" route listings for M-10, M-11, and US-12 and made the necessary changes to the Routes 10–19 page.
July 2, 2013		Added "new style" route listings for M-6, US-8, M-8, US-10, and US-131 and made the necessary changes to the Routes 1–9 Listings and Routes 10–19 pages. Also corrected a slight error and added a new historical note on the M-5 route listing. And based on several e-mails from site visitors (thanks Erik, Nathan and Rob!), I was able to update the M-143 route listing, the Master List and Unsigned Routes pages with the fact that M-143 is, once again, signed in the field!
July 1, 2013		Added the M-5 "new style" route listing to the site and made the necessary changes to the Routes 1–9 Listings page.
May 22, 2013 BIG NEWS		Added the first three "new style" route listings pages to the site. Since 1997, the Route Listings have consisted of multiple routes (sometimes more than a dozen) per listings page. For example, the Routes 120–139 page not only contains complete details on 13 different routes, but included listings for US-127 and US-131, each of which were quite lengthy in their own rights! With more information being added to many of the listings, including "new" historical data, there seem to no longer be any benefit to breaking down the listings into "ranges" as has been done for the past 16 years. As such, I have begun the long process of separating each listing out into its own page. The first three "new style" route listings to be added to the site are: M-1, US-2, and M-3. At present I am planning on also including separate pages for each former state trunkline highway route as well (e.g. Former M-4). Doing so should allow me to pare down the information on the Master List page a bit, too. Also made a few updates to the US-31 Freeway in Berrien County article (including adding sub-headings to break up the article a bit) and added the Controlled-Access Highways article to the In Depth section page.
May 21, 2013		In preparation for the "new style" route listings (one route per page), I've added the Controlled-Access Highways page to the In Depth section to help define and differentiate Freeways and Expressways (e.g. Controlled-Access highways and Limited-Access highways).
April 20, 2013		Finally brought the homepage over to the new site style including three new illustrative photos. (The old homepage images had been on there for almost a decade!) Also moved the blurb about being featured in Michigan History magazine to the About This Site page.
March 22– March 29, 2013		The majority of the website redesign/refresh work in this timeframe has been on pages in the Other Routes section, some of which have received substantial updates and improvements: Forest Highways - the former Forest Highways page was split into an overview/history page and a route listings page with much new content added. The route listings were completely updated with several new Forest Highway Designations. Great Lakes Circle Tours - the main page and pages for the Lake Erie, Lake Huron, Lake Michigan and Lake Superior Circle Tours have all been updated. Polar-Equator Trail - the page for this now-fading route has been updated as well. Heritage Routes (Michigan's Byways) - what had been one Heritage Routes page has been split into four pages: Heritage Routes overview - an introduction to the Heritage Routes program, soon to be retitled the Michigan's Byways program. Historic Heritage Routes - a listing of each of the Historic Heritage Routes Recreational Heritage Routes - a listing of each Recreational Heritage Route Scenic Heritage Routes - a listing of each of the Secnic Heritage Routes
March 15– March 21, 2013		Quite a bit more of the site has been converted over to the new design. As each page is converted, all external links are being checked and verified and in many instances new content is being added to either bring the information up-to-date or to augment what's already there. Examples of updated or expanded pages and articles include: Related LInks - All links checked, dead links removed, and several new links added. County Routes & Listings - New "index page" for all things county route-related in Michigan. Intercounty Highways - Moved to a new URL. County Routes - No content yet, but this will become an informational catch-all on the various county route systems other than the Intercounty Highway System (which has been covered on this site for many years).
March 14, 2013		Finished adding all of the current, former, and unsigned Intercounty Highway routes to the Master List: 1918–Present. Still a lot more work to go on the list, though...
March 11– March 13, 2013		Changed over more of the site to the new design. Most of the pages under the first drop-down navigation menu ("Michigan's Highways") have been converted over, including: Introduction Michigan's Route Systems - formerly "Michigan's Trunklines," now slightly refocused Michigan's Route Markers Master List: 1918–Present - now expanded to include Intercounty Highway designations and started adding the years each designation was extant. (This will take awhile to complete, however.) Historical Overview
February 28– March 11, 2013		Applied the new site design to more of the website. Instead of listing the individual pages here (that list is getting quite long), suffice it to say that many of the pages have been converted. This includes everything under the In Depth: News & Articles and About This Site headings and additional pages elsewhere. In the process of updating the design, however, some pages and articles have undergone updates or, in a few cases, complete overhauls, including: In Depth: US-31 Freeway in Ottawa County The Michigan Left The Zilwaukee Bridge
February 28, 2013		Started debuting a new overall design and style for the Michigan Highways website. (Additional and continued tweaking will likely take place over the coming weeks and months, though!) The new pages so far are: What's New? (This page.) About this Site Site Map & Search Corrections & Feedback Other Sites In Depth: News & Articles Diagonal Highways, 1935-36 Early Willow Run, Detroit Industrial & Edsel Ford Freeways
February 23, 2013		Updated additional notes in the US-10 and M-10 route listings. Also cleaned up and added new external links on the Highways 10-19 page.
February 21, 2013		Updated a note in the US-10 route listing. Also cleaned up and added new external links on most of the route listings on the Highways 1-9 page.
February 14, 2013		Updated and added new historical information to the I-69 route listing.
January 17, 2013		Took care of a little external link clean-up in the M-1, US-2 (West) and US-2 (East) listings.
January 14, 2013		Added the Diagonal Highways, 1935-36 article to the In Depth section and a larger version of the Diagonal Highways Map, 1936 to the Maps section.
January 13, 2013		Five updates or additions: Added a new Capitol Loop Route Map showing the route and termini of the Capitol Loop in downtown Lansing as well as other information. Updated the Capitol Loop route listing to include links to the new map. Overhauled the Downtown Detroit Trunklines map with minor updates. Updated the Maps page with the new and updated maps. Added a new historical photo of the US-2 interchange at the northern end of the Mackinac Bridge approach roadway (now part of I-75) to the Mackinac Straits Historical Photos page. Uploaded the first new background image for the sitewide header graphic since 2008. (This is a portion of the new historical photo added to the Mackinac Straits Historical Photos page, noted above.)
December 23, 2012		Added notes to the BUS US-223 and Capitol Loop route listings.
December 20, 2012		Updated all of the individual listings on the Heritage Routes page, and added new ones that were missing.
December 11, 2012		Here's some more good stuff: Updates (some of them pretty massive!) to the following listings to incorporate some in-depth research into the many trunkline routings in the City of Adrian over the years: M-34 route listing M-52 route listing M-80 route listing US-223 route listing BUS US-223 route listing including the jurisdictional transfers of 2010 I also updated the rest of the M-80 route listing while I was at it. Added the Downtown Adrian: Trunkline Routing History map to show ALL of the trunkline routes and the dates of their existence through the City of Adrian from 1915 to present. (Added a link to the map to each affected route listing and to the general Maps page.) Updated the BL I-196 (Holland/Zeeland) listing to reflect it being continuous again.
December 3, 2012		Three more updates: Added information on a segment of I-75 winning the "Parade Magazine Scenic Highway Award" for 1964, selected as the year's finest example of a "driver's road" for scenery, speed and safety from across the country. Updated the M-152 route listing with additional information about its longtime status as a turnback candidate. Made a minor update to the FUTURE M-231 listing.
December 2, 2012		Updated the US-131 route listing for 1956 and 1968 to reflect new historical information on the former four-lane divided segment north of Mancelona. Also updated the Michigan Official Maps: Christopher Bessert Collection listing.
November 30, 2012		Updated the M-168 listing to reflect its decommissioning and transfer to local control in April and amended the Master List accordingly.
November 22– November 25, 2012		FINALLY made some long-awaited updates to a few of the route listings on the site, including: M-30 extension in Midland County Updated the Lake Michigan Circle Tour information in the US-31 route listing. M-139 extension in Berrien County (and related updates to the US-31 and M-140 listings) Updated the M-311 listing to reflect its signed status. BUS US-12 decommissioning at Niles (and related updates to the US-12 and M-51 listings) CONN M-13 to reflect its new "internal" connector designation. CONN US-24 (Erie) to reflect its new "internal" connector designations. CONN US-24 (Woodhaven) to reflect its new "internal" connector designation. Capitol Loop to reflect its new "internal" connector designation. Removed the OLD US-23BR (Fenton) listing from the Unsigned Trunklines page. (It was turned back to local control.) Removed the OLD US-31 (Berrien) listing from the Unsigned Trunklines page. (It became part of the M-139 extension.) Updated the Master List to reflect the changes from above. Completely updated the Unsigned Connectors list on the Unsigned Trunklines page to reflect an overhaul in the "internal" connector designations. Also added a Niles Area Highways: 2010– map showing an overview of the highways in the Niles area.
November 19, 2012		Updated, corrected and augmented the information on the Great Lakes Circle Tours, Lake Michigan Circle Tour, and Lake Superior Circle Tour pages.
January 2, 2012		Corrected the "contact" e-mail address on the Corrections & Feedback page. Also added the "As featured in the 'Webwatcher' column of the January/February 2012 Michigan History magazine" blurb on the homepage.
December 6, 2011		Fixed an unfortunate gaffe with the domain name... it works again! Also updated the "contact" e-mail address in the footer at the bottom of each page. Minor modifications of the homepage text to reflect that the "recent" website redesign was actually several years ago.
November 21, 2008		Uploaded a new background image for the sitewide header graphic.
September 28, 2008		Updated the route length figures for ALL of the Intercounty (County-Desingated) Highways on all three listing pages: A-2 – C-81, D-19 – H-15, and H-16 – H-63. The mileages were calculated using State of Michigan data to one-thousandth of a mile, then rounded to the nearest one-hundredth of a mile as per the existing conventions on this site.
June 24, 2008		Updated the M-107 Route Listing to reflect its transfer to local control on June 4, as well as updating the Master List to show the change.
May 30, 2008		Added a page to the Photos section featuring new non-freeway Clearview trunkline signage in St Joseph Co.
May 5, 2008		Made several minor updates to the M-21 route listing.
April 9, 2008		Made some minor changes to the County Highways page, added some information to several listings on the County Highways A-2 - C-81 page, and some minor modifications to the county route marker descriptions on the Route Markers page.
January 1, 2008		Happy New Year! Made a few sitewide changes for the New Year, including updating the copyright in the footer at the bottom of every page.
December 17, 2007		Verified all of the links on the Related Links page. Corrected broken or misdirected links as necessary.
December 15, 2007		Updated the M-121 route listing to change it's status from "former" to "current" with the redesignation of OLD M-21 between Zeeland and Grandville as M-121. Also updated references to the new M-121 on the M-21 route listing, the US-31: Ottawa County page and the Master List section. Removed OLD M-21 (Ottawa) from the Unsigned Trunklines page.
November 3, 2007		Updated the route listings for M-38 and M-64 to reflect the jurisdictional transfer of former trunkline segments related to the new Ontonagon River Bridge. Removed OLD M-38 and OLD M-64 from the Unsigned Trunklines page.
November 2, 2007		Updated the BS I-96 (Portland), I-96 and Master List 1918-Present pages to reflect the decommissioning and jurisdictional transfer of Portland's BS I-96 to local control.
July 8, 2007		Updated the BUS US-31 (Muskegon) route listing in response to the jurisdictional transfer in downtown Muskegon as well as the M-46 route listing because of the changes to its western terminus. Also updated the M-42 route listing with more changes resulting from its truncation to Manton in June.
June 15, 2007		Added the M-37 Scenic Heritage Route to the Heritage Routes page and also updated the M-37 route listing.
June 14, 2007		Updated the information in the M-42 route listing regarding the jurisdictional transfer of the Manton-to-Mesick segment. Also added a new OLD M-42 listing to the unsigned trunklines page.
May 28, 2007		Added additional information to the M-42 route listing about the pending jurisdictional transfer of the Manton-to-Mesick segment. Also updated the BUS US-131 (Grand Rapids) listing and made a minor correction to the OLD US-131 BR listing on the unsigned trunklines page.
May 27, 2007		Updated the M-42 route listing to reflect the pending jurisdictional transfer of the part of that route from Manton westerly to Mesick.
March 15, 2007		Updated the Unsigned Trunklines page to include the new OLD M-38 and OLD M-64 listings. Also augmented the County-Designated (Intercounty) Highways page with several photographs.
February 26, 2007		Updated the OLD I-69 (OLD M-78) route listing to reflect its truncation to Perry.
February 6, 2007		Corrected a slight error in the Unsigned Connectors section of the Unsigned Trunklines page. (Thanks, Tim!) Also added new information to the OLD I-69 (OLD M-78) unsigned trunkline route listing.
January 8, 2007		Added two links to an article in Michigan Historymagazine about the dedication of the Gerald R Ford Freeway to the I-196 route listing.
January 2, 2007		Happy New Year! Made a few sitewide changes for the New Year, including updating the copyright in the footer at the bottom of every page.
December 21, 2006		Updated the US-23 and BUS US-23 (Fenton) route listings as well as the Master List to reflect the decommissioning of BUS US-23 at Fenton.
December 14, 2006		Updated the information related to the 2004 Holland business route jurisdictional transfer on the following pages: Holland Business Routes: The Turnback and BL I-196 (Holland-Zeeland). Also updated the route listings for M-38, US-45 and M-64 to reflect the opening of the new Ontonagon River Bridge as well as updating the Ontonagon State Trunkline Changes 2006 map.
November 25, 2006		Updated the US-31 route listing, US-31 in Ottawa County article and Master List 1918-Present page with information on the proposed M-231, as well as created a new Future M-231 route listing.
November 2, 2006		Updated the M-36 route listing and the Historic US-27 (Page 2) listing with new historical information.
October 22, 2006		Made a few minor modifications to the Michigan Left page, corrected an incorrect link to the County Highways D-19—H-15 listings page on most of the other route listings pages, and completely overhauled the design of the Heritage Routes page. Also migrated the remaining route listing pages to the "new" page format introduced in October 2005, verifying all external links and correcting invalid ones: Business Connections 2-31 Business Connections 32-94 Business Connections 96-496 County Highways A-2—C-81 County Highways D-19—H-15 County Highways H-16—H-63
October 9, 2006		Migrated the following pages to the "new" page format introduced in October 2005, verifying all external links and correcting invalid ones: Highway Listings 200-229 Highway Listings 230-249 Highway Listings 250-696
October 8, 2006		Created new route marker graphics for the three-digit US Highways (US-127, US-131, US-141 and US-223) and migrated the following pages to the "new" page format introduced in October 2005, verifying all external links and correcting invalid ones: Highway Listings 100-119 Highway Listings 120-139 Highway Listings 140-159 Highway Listings 160-179 Highway Listings 180-199
October 7, 2006		Migrated the Highway Listings 80-89 and Highway Listings 90-99 pages to the "new" page format introduced in October 2005. In the process, various external links were verified and corrected, if necessary.
October 6, 2006		Even more updates today: Updated the M-38 and M-64 route listings with additional information about the new Ontonagon River bridge in Ontonagon. Added the Ontonagon State Trunkline Changes 2006 map to the US-45, M-38 and M-64 route listings and to the Maps page. Migrated the Highway Listings 60-69 and Highway Listings 70-79 pages to the "new" page format introduced in October 2005. In the process, various external links were verified and corrected, if necessary.
October 5, 2006		Several more updates today: Updated the M-50 route listing to reflect a jurisdictional transfer and relocation of its eastern terminus in Monroe. Updated the M-26 route listing to reflect the completion of the realignment between South Range and Trimountain and the jurisdictional transfer of the former route through South Range. Also includes an updated version of the South Range Area map. Altered the BUS US-23 (Fenton) route listing to reflect its impeding decommissioning and transfer to local control. Also modified the US-23 route listing as well. Migrated the Highway Listings 40-49 and Highway Listings 50-59 pages to the "new" page format introduced in October 2005. In the process, various external links were verified and corrected, if necessary.
October 4, 2006		Several updates today: Updated the Heritage Routes page, adding new links, fixing broken ones and calculating mileages. Added information to the US-41 route listing regarding the Scenic Heritage Route and National Scenic Byway designations. Migrated the Highway Listings 30-39 page to the "new" page format introduced in October 2005. In the process, various external links were verified and corrected, if necessary.
September 25, 2006		Minor update to the History section of the M-116 route listing.
September 24, 2006		Major addition to the site: a comprehensive article "The History of Roads in Michigan" by Dorothy Pohl & Norman Brown. Minor update to the Historical Overview page and added a new Photos page.
September 17, 2006		Added the M-26 at South Range photo pages with 22 pictures of the existing route of M-26 being superceeded by a new alignment in 2006.
September 12, 2006		Added the US-2 Is NOT A Freeway photo page with three pictures of new signs along US-2 WEST in St Ignace.
August 23, 2006		Updated two links, one each in the M-10 and US-12 route listings. Also added new information to the M-53 route listing.
August 5, 2006		Heavily-updated the H-58 route listing with new information. Updated the BUS US-23 (Fenton) listing as well. Also migrated the Highways 10-19 and Highways 20-29 pages to the new design style.
July 31, 2006		Added an historic photograph to the Historical Overview page.
July 17, 2006		Added the designation as the Purple Heart Trail to the I-69 route listing.
April 14, 2006		Updated Michigan Official Maps: Christopher Bessert Collection.
March 28, 2006		Updated the M-26 route listing with new infomation regarding a realignment project at South Range. Also uploaded a new overview map of the project to the Maps page.
March 25, 2006		Updated a link on the Related Links page.
March 14, 2006		Updated the listing for OLD M-65 on the Unsigned Trunklines page to reflect its transfer to local control on March 9.
February 27, 2006		Added Michigan Official Maps: Christopher Bessert Collection.
February 23, 2006		Updated the M-44 route listing with a new historical tidbit. (Thanks Dan M!)
January 12, 2006		Updated the US-41 route listing to reflect the completion of the Interstate Bridge project linking Menominee and Marinette, Wisc. Also made a few other corrections/updates to the US-41 and M-40 route listings.
January 7, 2006		Overhauled the Forest Highways page, converting it to the "new" Michgigan Highways website style from October 2005. Also converted the Highways 1-9 route listings page to the new style as well.
January 2, 2006		Happy New Year! Made a few sitewide changes for the New Year, including updating the copyright in the footer at the bottom of every page.
December 30, 2005		Updated the link to Eric Buchanan's Michigan Highways Photos website on the Related Links page.
December 9, 2005		Several changes/updated/additions today: Updated the Historic US-33 and US-31 route listings with new historic information. Added information regarding the impending decommissioning of Niles' BUS US-31 and the potential extension of M-139 into Niles to the US-31, BUS US-31, M-139 and M-140 route listings. Updated the precise southern terminus of M-25 in Port Huron after consultation with MDOT. Added new information to the M-84 history section and added the new OLD M-84 route to the Unsigned Trunklines page. Updated the Michigan State Trunkline Record Holders (PDF) document to include the new OLD M-84 route. Updated the Unsigned Connectors list with additional information on Connector 5 and Connector 13.
November 27, 2005		Completely overhauled and extensively revised the Unsigned Trunklines & Connectors page. Also corrected links in the M-1 route listing.
November 21, 2005		Made several changes and updates to the M-154 route listing.
November 19, 2005		Completely overhauled and updated the history section for the M-99 route listing as well as making several updates to the M-106 route listing.
November 17, 2005		Updated the M-168 listing to reflect its impending transfer to the Village of Elberta in 2010. Also updated the homepage and added a link and graphic for the MSP Winter Road Conditions website.
November 10, 2005		Added a brand-new map of Downtown Detroit Trunklines to the Maps section as well as linked from the M-1, M-3, M-10, US-12, M-85, I-375 and BS I-375 listings.
November 9, 2005		Added new entries to the history sections of the M-43 and US-131 route listings. Also added a one new link and updated the URL on another on the Links page; made a minor update to the M-185 route listing; corrected/updated information on the BUS US-131 (Manton) listing.
October 30, 2005		Uploaded Michigan State Trunkline Record Holders (PDF) and added a link to it on the Michigan's State Trunkline System page.
October 29, 2005		Added a map showing the County-Designated Highway Zone System to the County Highways page.
October 15– October 26, 2005		Updated the overall design of the entire website, including a new title graphic featuring the Mackinac Bridge, an updated set of navigation menus on the left side of most pages and some tweaks to the style sheets. Along with these changes, several pages were overhauled or updated, including: Introduction - new mileage data Michigan's State Trunkline System - new graphics Links - updated some broken ones Sources & Credit - added many new sources and names
October 14, 2005		Made a few corrections to the M-99 listing and the M-174 description on the Master List: 1918-Present. (Thanks Richard!) Also uploaded a new design for the homepage.
October 11, 2005		As a result of the several jurisdictional transfers in Marquette yesterday, the following route listings have been updated: M-553, M-554 and BUS US-41. Also updated with these changes is the Master List: 1918-Present.
October 4, 2005		Added information about a proposed trunkline extension to the M-32 and C-48 listings.
September 17, 2005		Added new or updated existing listings in the Master List 1918-Present page, including M-130 EXTENSION (new), M-170 (new), M-172 (new), M-173 (updated), and M-218 (updated). Also added some new historical information to the M-117 listing and added a new OLD US-127 listing to the Unsigned Trunklines page.
September 12, 2005		Added a new link to Eric Buchanan's Michigan Highways Photos website and updated another link on the Related Links page. Also added a new photograph to Page 2 of the Michigan Left pages and additional text on the primary Michigan Left page.
August 23, 2005		Added a link to Nathan Holth's Historic Bridges of Michigan and Elsewhere site to the Related Links page. Also made several minor corrections to the Master List: 1918-Present page.
August 21, 2005		Completely overhauled the History section in the US-31 route listing, literally quadrupling the amount of information presented.
August 16, 2005		Added two new articles to the In-Depth section (also linked from the US-31 listing): US-31 Freeway in Berrien Co US-31 Freeway in Ottawa Co Also added a brand-new H-11 listing to the D-19 - H-15 page and also updated the H-13 and H-58 listings. (Thanks Robert!)
August 11, 2005		Updated the History section of the M-1 listing with a jurisdictional transfer date. (Thanks Patrick!)
July 20, 2005		Uploaded a brand-new page, M-26: Eagle River Timber Bridge (1991), to the In Depth section.
July 19, 2005		Added links to Kevin Musser's "Three Spans over the Portage" article about the Houghton-Hancock Lift Bridge to the M-26 listing, US-41 listing and the Related Links page (Michigan's Bridges & Ferries section).
July 18, 2005		Added some new/updated information to the history portion of the M-78 route listings.
July 16, 2005		Made the following changes: Updated the M-18 listing with new modern-day and new historical information. Updated the BUS US-127 (Alma) listing with new information regarding the removal of the one-way couplet in downtown Alma. Revised the text of and added a link to a photo on the Michigan's Route Markers: The Clearview Future? page.
July 14, 2005		Minor corrections made to the M-311 listing. (Thanks A.J.!)
July 3, 2005		Revamped and revised Historic Auto Trails: Page 2, including adding representations of the auto trails markers and pole markings.
June 18, 2005		Added a link to the Route Markers page leading to the Michigan's Changing Route Marker Styles page at Barry Camp's website.
June 12, 2005		Completed the following: Made several more minor updates/corrections to the following route listings: US-23, M-24, M-25, CONN US-24 (Taylor), BL I-75 (Pontiac), BS I-75 (Bay City), BL I-75 (Gaylord), and BL I-94 (Battle Creek). (Thanks, Eric!) Also, based on new information, updated the M-5 listing and re-added OLD BS I-96 to the Unsigned Trunklines page. Based on recent jurisdictional transfers, updating the M-1 listing (2004 transfer) and the M-37 listing (May 2005 transfer). In addition, updated the route lengths for M-5, M-6, M-8, M-37, I-675 and I-696.
June 11, 2005		Fixed a few typos in the C-58 route listing. (Thanks, Robert!) Also made minor updates/corrections to the M-17 and BUS US-23 (Ann Arbor) listings. (Thanks, Eric!)
June 9, 2005		Updated the US-12 listing to reflect the jurisdictional transfer of a portion of the route in Detroit on June 8th. Also completed revisions to the following listings or pages to reflect jurisdictional transfers in the City of Holland: Holland Business Routes: The Turnback US-31 I-196 BUS US-31 BL I-196 Lake Michigan Circle Tour
May 6, 2005		Updated the M-37 listing to reflect the jurisdictional transfer of a portion of the route in Battle Creek two days prior.
May 4, 2005		With the debut of a brand-new BUS US-31 route at Ludington, the following listings were revised: BUS US-31 (Ludington), US-31 listing, and OLD US-31 listing.
April 30, 2005		Added information to the M-37 listing regarding a pending jurisdictional transfer in Battle Creek and also added a link to the M-37: Hastings-Battle Creek page to the same listing.
April 23, 2005		• Added Michigan's Route Markers: The Clearview Future? to illustrate what the state's route markers may look like in the future; • Added information about the Lodge Frwy's new exit numbers to the M-10 listing; • Added information regarding the impending jurisdictional transfers impacting US-41, BUS US-41, M-553 and M-554 in the City of Marquette to those respective listings. • Updated the Lake Michigan Circle Tour page and US-10 listing to reflect the removal/decommissioning of the LMCT Loop route through downtown Scottville.
April 17, 2005		Fixed a few inconsistencies in the US-31 history listing. (Thanks Robert!)
March 23, 2005		Added an updated length to the M-3 listing and fixed several other minor errors. (Thanks A.J.!)
March 20, 2005		Updated the Unsigned Trunklines page to reflect the turnback of the rest of OLD M-21 in St Clair Co.
February 23, 2005		Updated the I-69 route listing and the Recreational Heritage Route listing on the Heritage Routes page with new information regarding the addition of I-69 as such a route.
February 7, 2005		Added a new link to the Links page.
January 23, 2005		Minor changes to the Lake Michigan Circle Tour and Lake Superior Circle Tour pages.
January 18, 2005		Minor changes to the Unsigned Trunklines and Master List pages.
January 17, 2005		Added new information to the history section of the M-62 listing. Also added information about LeRoy Barnett's new book on the Memorial Highways page.
January 15, 2005		Added new information to the history sections of the M-3, M-35 and M-97 listings.
December 11, 2004		Minor updates to M-28, US-41, M-123 and M-203 route listings.
December 5, 2004		Made changes/corrections to the M-59 and BUS US-23 (Fenton) listings; also made additions to the still-unfinished Unsigned Trunklines page.
December 4, 2004		Finally added a page on the Michigan Polar-Equator Trail.
November 27, 2004		Added a new page cataloguing the various types of Michigan Route Markers. Also updated each of the Great Lakes Circle Tours pages with new route marker graphics: Lake Erie, Lake Huron, Lake Michigan and Lake Superior.
November 17, 2004		Updated the M-6/South Beltline listing to reflect the completion of that freeway as well as a three-page set of photographs from the ribbon-cutting ceremony.
November 11, 2004		Added information to the US-41 listing regarding the Interstate Bridge replacement project; included additional historical information in the US-131 and M-119 listings.
November 7, 2004		Uploaded new historical updates to the M-21 and M-51 route listings.
October 27, 2004		Added a new item to the history section to the M-99 listing.
October 26, 2004		Added clarifications regarding route termini to the US-24 and M-59 listings; updated the M-132 listing on the Master List: 1918-Present; updated nearly a dozen pages to change the "Connect to" links for routes entering Indiana to point to the Indiana Highway Ends site, including US-12, US-31, M-51, M-62, M-66, I-69, I-94, M-103, US-131, Former M-205 and M-239; updated the M-6 listing with some additional information.
October 24, 2004		Added the complete listings pages for the remaining two county-designated highway pages: D-19 through H-15 and H-16 through H-63.
October 17, 2004		Added the complete listings page for county-designated A-2 through C-81 as well as completed the Historical US-27 Overview page.
October 13, 2004		Completed the move of the Michigan Highways Master List 1918-Present from the old website to the new one. The Master List was completely overhauled, improved and updated and now features links to all of the individual highway listings.
October 10, 2004		Completed the Business 95-496 page, the last of the Business Connections pages! Also uploaded a page of Mackinac Straits Historical Photos. Also updated the M-65 listing.
September 25, 2004		Made several minor modifications to the US-131 and BUS US-31 (Holland) listings.
August 30, 2004		Completed the Business 32-94 page with the remaining route listings uploaded. Also verified, updated and corrected links in the various highway listings linking to Dan Garnell's Michigan Highway Ends website.
August 20-22, 2004		Uploaded the first two-thirds of the listings on the Business 32-94 page (from BUS M-32 through BS I-75 Sault Ste Marie); updated the BUS M-28 and BUS US-31 Holland listings; added the Holland Business Routes: The Turnback page to the In-Depth section.
August 14, 2004		Added a few additions to the US-31 listing; made typographical corrections to the US-10, M-22, M-66 and M-78 listings. (Thanks to John and Brian for the heads-up on those!)
July 28, 2004		Uploaded new Michigan Left: Photos & Plans page to accompany the existing Michigan Left-Hand Turn page. Also added navigation and made slight revision to main Michigan Left page.
July 18, 2004		Added a few clarifications and corrections to the US-131 history listing; added a new entry to the US-23 history listing; added information for the newly-designated US-12 Historic Heritage Route and US-23 Sunrise Side Coastal Highway in the US-12 and US-23 listings (respectively) and on the Heritage Routes page; also overhauled the Heritage Routes page with new graphics and information; made a few updates to the Historic US-16 Page 2 as well.
July 6, 2004		Uploaded complete Business Connections 2-31 page as well as minor corrections to Highways 200-229 page and a new graphic for the Michigan Left-Hand Turn page.
June 26, 2004		Minor correction to the M-59 listing on the Highways 50-59 page.
June 6, 2004		The Highways 250-696 page is completed, which completes the listing pages for all mainline routes. Also made an addition to the I-96 listing.
May 24, 2004		Updated the M-120 listing to more accurately reflect it being signed as an east-west highway in the field; added two new history listings to M-183 listing; uploaded the completed Highways 200-229 and Highways 230-249 pages.
May 21, 2004		Uploaded the fully-completed Highways 180-199 page.
May 20, 2004		Added two "historic" state trunkline planning maps from 1951 and 1968 to the Maps page.
May 13, 2004		Uploaded fully completed Highways 140-159 and Highways 160-179 pages and the first two listings (M-183 and M-185) on the Highways 180-199 page, added additional history information to M-120 listing, fixed broken links on Michigan's Trunklines page.
May 6, 2004		Debuted the Proposed M-37 Hastings-Battle Creek Expressway article in the In-Depth Section, including a Map of the proposed highway. Modified the M-37 and M-43 listings as well.
April 27, 2004		Minor correction on Historical Overview page, added link to US-23 listing and the Links page, and fixed a broken link in the M-20 listing.
April 22, 2004		Added an additional link to the Links page. Also make a slight update to the US-127 listing based on site contributor feedback.
April 10, 2004		Completely overhauled the Links page, tripling it in size and making it easier to navigate... hopefully.
April 9, 2004		Corrected a few items in the US-31 route listing on the Highways 30-39 page due to contributor feedback. Also made a minor correction on the About This Site page.
April 5, 2004		Completed the remainder of the listings on the Highways 129-139 page.
April 3, 2004		Added listings for M-120 through US-131/M-131 to the Highways 120-139 page.
April 1, 2004		Updated the history section for M-116 to include some newfound information.
March 24, 2004		Added the remainder of the route listings to the Highways 100-119 page as well as the beginnings of the Historic US-102 and Historic US-112 pages.
March 22, 2004		Added all of the listings to the Highways 90-99 page and the listings for M-100 through M-107 on the Highways 100-119 page.
March 15, 2004		Added all of the listings to the Highways 80-89 page.
March 14, 2004		Added all of the listings to the Highways 70-79 page.
February 28, 2004		Added the remaining listings to complete the Highways 60-69 page.
February 17, 2004		Added listings for M-61, M-62 and M-63 to the Highways 60-69 page. Also added updates/corrections to the US-31 and US-33 listings.
February 8, 2004		Added complete Highways 50-59 page.
January 18, 2004		Added the remaining listings (M-46, M-47, M-48 and M-49) to the Highways 40-49 page.
January 18, 2004		Added the M-43, M-44, US-45 and M-45 listings to the Highways 40-49 page.
January 14, 2004		Added the US-41 and M-42 listings to the Highways 40-49 page.
January 7, 2004		Added two new links to the Links page and updated several links to maps on the Maps page. Also added the first listing to the Highways 40-49 page.
December 26, 2003		Completed the Highways 30-39 page and added the M-35: The Highway Henry Ford Stopped article to the In Depth section.
November 11, 2003		Added the next three listings to the Highways 30-39 page and completed the Historic US-33 page.
November 9, 2003		Added the first two listings to the Highways 30-39 page and a Map of the US-31 Freeway in Berrien County to the Maps page.
November 1, 2003		Added the remaining route listings to the Highways 20-29 page as well as completed the Historic US-25 pages and much of the Historic US-27 pages.
October 22, 2003		Completed the Zilwaukee Bridge section of the website, including the inclusion of the entire 1987 MDOT report The Zilwaukee Bridge: From the Beginning.
October 17, 2003		Added two pages containing aerial imagery off the Zilwaukee Bridge main page. They are: Zilwaukee Bridge: Aerial Image Zilwaukee Bridge: Annotated Aerial Image
October 12, 2003		Updated the listing for M-8 in Detroit to include the date of jurisdictional transfer of the route to the state.
October 5, 2003		Added the first "Historic US Highway" page for US-16 and updated corresponding pages: Highways 10-19 and Listings page.
September 27, 2003		Corrected the Highways 1-9 page to reflect the 2001 route changes to M-3 in downtown Detroit. Also added two more route listings to the Highways 20-29 page.
September 26, 2003		Added the Highways 20-29 page with the first four route listings.
September 25, 2003		Added the Tug of War That is the US-23 Freeway page about the proposed "freeway-ization" of US-23 from Standish to Oscoda.
September 21, 2003		Added the final three listings to the Highways 10-19 page.
September 19, 2003		Added an updated map of the US-131 Manton Bypass to reflect its opening to traffic on that day.
September 16, 2003		Added the Highways 10-19 page with the first seven route listings. Also, uploaded new versions of the route marker symbols used in the website.
September 14, 2003		Added the Highways 1-9 page.
July 20, 2003		New website "officially" unveiled to general public.
Nov. 2002–July 2003		New website created.
November 24, 2002		Domain "michiganhighways.org" registered.
June 1997 through July 2003		Previous versions of website, hosted at AOL.
c.1987–1992		"Michigan's Route Numbered Highays"—the first digital Michigan Highways listing created using AppleWorks software on Apple IIe. View the 1990–91 Edition.
c.1985		First pre-Internet proto-Michigan Highways listing created... as a typewritten list of all Michigan state trunkline highways on a typewriter in the webmaster's mother's classroom at Highlander Way Middle School in Howell, Michigan.