Sources & Credit

A website as complex and detailed as the Michigan Highways website could never be undertaken without the aid of dozens of helpful people as well as stacks of documents, maps, books and other websites. This page attempts to credit those individuals and list those sources consulted. Any omissions are purely unintentional and will be included by dropping a line to the webmaster.

Sources

• Michigan Geographic Framework, GIS data released by the Michigan Center for Shared Solutions & Technology Partnerships (formerly the Michigan Center for Geographic Information) in cooperation with MDOT, updated annually.
• "Roadway Physical Reference Number & Control Section Atlas," published by MDOT, 2002 and 2009.
• "Roadway Physical Reference Number Atlas," published by MDOT, 1996.
• "Established Trunkline System" maps, internal to the MSHD & MDOT, 1913-1990.
• Official Michigan Transportation Map, published annually by MDOT, 2022.
• Back issues of the Official Michigan map, published by MDOT, MDSHT and MDSH, 1920–2021.
• Michigan State Highway Department, "Biennial Reports of the State Highway Commissioner":
  • "First Biennial Report ..., 1905 and 1906"
  • "Second Biennial Report..., 1907 and 1908"
  • "Third Biennial Report ..., December 1, 1908 to June 30, 1910"
  • "Fourth Biennial Report ... for Two Fiscal Years Ending June 30, 1912"
  • "Fifth Biennial Report ... for Two Fiscal Years Ending June 30, 1914"
  • "Sixth Biennial Report ... for Two Fiscal Years Ending June 30, 1916"
  • "Eighth Biennial Report ... for Fiscal Years Ending June 30, 1919 and June 30, 1920"
  • "Ninth Biennial Report ... for Fiscal Years Ending June 30, 1921 and June 30, 1922."
  • "Eleventh Biennial Report... for Fiscal Years Engind June 30, 1925 and June 30, 1926"
  • "Twelfth Biennial Report ... for Fiscal Years Ending June 30, 1927 and June 30, 1928"
  • "Thirteenth Biennial Report... for Fiscal Years Ending June 30, 1929 and June 30, 1930"
  • "Sixteenth Biennial Report ... for Fiscal Years Ending June 30, 1935 and June 30, 1936"
  • "Seventeenth Biennial Report ... for Fiscal Years Ending June 30, 1937 and June 30, 1938"
  • "Eighteenth Biennial Report ... for Fiscal Years Ending June 30, 1939 to June 30, 1940"
  • "Twenty-Fourth Biennial Report ... for Fiscal Years Ending June 30, 1951 and June 30, 1952"
  • "Twenty-Fifth Biennial Report ... for Fiscal Years Ending June 30, 1953 and June 30, 1953"
  • "Twenty-Sixth Biennial Report ... for Fiscal Years Ending June 30, 1955 and June 30, 1956"
• "Trunkline Atlas: Road and Bridge Types," Michigan State Highway Department, 1938, 1939, 1940, 1945, 1948, 1957, 1970 editions.
• "State Trunkline Control Section Atlas," Michigan State Highway Department, 1959 and 1966 editions
• "Mileage Log of State Trunkline Routes," Michigan State Highway Department, 1948
• "Highway Survey and Design Manual," Michigan State Highway Department, 1950
• General Highway Map series, published by MDOT for all 83 counties.
• "Michigan Manual of Uniform Traffic Control Devices," Michigan Department of Transportation, 1994
• "Michigan Manual of Uniform Traffic Control Devices," Michigan State Highway Department, 1963
• "A Drive Down Memory Lane: The Named State and Federal Highways of Michigan" by LeRoy Barnett PhD, 2004
• "Highway Needs in Michigan: An Engineering Analysis," Michigan Good Roads Federation & Michigan State Highway Department, 1948
• "The State of Michigan Trunk Line Story," Third Edition, by Stanley D. Lingerman, P.E. Fellow Member, August 15, 1996
• Information provided on the MDOT website.
• "Michigan Atlas & Gazetteer", published by DeLorme, 1991, 1995, 2001, 2009, 2012, 2016, 2019.
• "Mapbook of Michigan Counties", published by Michigan Natural Resources magazine, 1987, 1988.
• "Michigan County Map Guide", published by the Michigan United Conservation Clubs, 1995, 2000.
• "Michigan County Atlas" (5th Edition), by David M. Brown, 2020.
• "Michigan County Atlas" (4th Edition), by David M. Brown, 2019.
• "Michigan County Atlas" (3rd 2017 Edition), by David M. Brown, 2017.
• "Michigan County Atlas" (3rd Edition), by David M. Brown, 2013.
• "Michigan County Atlas" (2nd Edition), by David M. Brown, 2009.
• "Michigan Recreation Atlas" by National Geographic, 2012.
• The entire Michigan Regional Map Series (14 titles), published by Universal Map, 1986-2009.
• Various commercial city and county maps published by Universal Map, Rand McNally, G.M. Johnson, Michigan Maps, and other publishers.
• Various AAA-distributed maps, published by AAA or other publishers.
• Current and archived articles from newspapers across the state.
• Information provided by Michigan citizens and travellers across the state.
• Information gathered by the webmaster over nearly five decades of travels around the Great Lake State.
• (Quite literally) Hundreds of other sources...

Credits

The following is a listing of just some of the people who have contributed information, corrections, updates and feedback to the site over the years. The list is in alphabetical order by last name in an attempt to be as impartial as possible, as some of those listed may have provided anything ranging to a helpful comment or two all the way to hundreds of historical documents on the history of Michigan's state trunkline system. However, all input is continually sought and appreciated, no matter how big or small the contribution may be. If anyone has been omitted, please know it was nothing but inadvertant. Contacting the webmaster noting the omission will result in a remedy of the situation.

• Ari Adler, MDOT
• Patrick Allen, MDOT
• Dyche Anderson
• Mike Austerman
• Roger Belknap, KCRC and MDOT
• Susan Berquist, MDOT (retired)
• A.J. Bertin
• Andrea Dewey, GVMC and FHWA
• Tom Doyle, MDOT
• Marc Fannin
• Andy Field
• Dan Garnell
• Michael Gronseth
• Robert Halonen
• Peter Hanses, MDOT (retired)
• Darrell Harden, MDOT
• Larry Harvilla
• Heather Haskell
• Geoff Hatchard
• Tom Ketchum
• Adrian Leskiw
• Jim Lindsay
• John McDowell
• Eric Nyman
• Dave Outen
• Don Pavich
• Phil Putnam
• Brian Reynolds
• Rich Rowland
• Charles Sarjeant
• Phil Singer
• James Snell, GVMC
• Stephan Summers
• Ron Willbanks
• Tom Byle, KCRC
• and many, many more!