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M-22 & M-109 junction route signage in Glen Arbor, Michigan
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Former M-160
Former M-162 Route Marker On to Next Route:
Former M-163
M-162 is a former state trunkline route existing from October 29 1932 to December 6, 1938.
Southern Terminus*:    Downtown AuTrain at cnr of present-day Arbutus St (H-03/Au Train-Forest Lake Rd) & Woodland Ave
Northern Terminus*:    M-94 (present-day M-28) immediately north of the community of AuTrain in Alger Co, at the present day jct of M-28 & H-03/AuTrain Lake Rd.
Final Length*: 0.2 mile (0.171 mile)**
Maps: New! 2025-11 Route Maps of Former M-162
Notes: * The termini and final length for Former M-162 reflect the beginning and ending of the route and its length as of the time of the route's cancellation on December 6, 1938.
  ** Official internal State Highway Dept trunkline determination maps indicate a length of 0.2 mile as the length of M-162, however this was during an era when distances of this type were only measured to the nearest tenth mile. Later, by the 1950s, all distances and trunkline lengths started being measured to the thousandth of a mile (0.001 mile, or about 5¼ feet). All indications point to M-162 having run from M-94 (present-day M-28) south to the former route of M-94 in Au Train at Woodland Ave, which is a 900 foot distance, or 0.171 mile, hence the pair of route lengths shown above.
 
M-162, the Au Train Spur, as it appears on a 1936 State Highway Dept map.M-162, the Au Train Spur, as it appears on a 1936 State Highway Dept map.
New! 2025-11 In the very late 1920s and into the 1930s, a profusion of short state trunkline spur routes were established linking the downtowns of numerous samll communities located close to, but not directly upon, state trunkline routes. M-162 is one of those many routes. In this case, M-94 was being constructed along the south shore of Lake Superior as a new trunkline route linking Munising and Marquette, but was going to bypass the small community of Au Train in northwest Alger Co just to the north. Au Train was actually the first European settlement of any size in Alger Co dating to 1862, actually becoming the county seat of the newly-organized county in 1885. It was a major lumbering and fishing center ane had a station on the Detroit, Mackinaw & Marquette Railroad since 1881. While it had lost its status as the county seat to Munising in 1902, it was still deemed large enough in the early 1930s to warrant the creation of a 0.2-mile long trunkline spur to connect the center of the community with the new M-94 route being constructed just to the north. M-162 ran along Arbutus St (Au Train-Forest Lake Rd) from M-94 (present-day M-28) southerly into Au Train, ending at Woodland Ave, which had previously been the established route for M-94 from 1925 to 1933, when M-94 ran west from Munising and terminated at Au Train. The route served the community for six years until late 1938 when, like a great many of the other similar short trunkline spurs around the state were cancelled and turned back to loca control in an effort spearheaded by then-State Highway Commissioner Murray D. "Pat" Van Wagoner.
  Intercounty highway H-03 route markerNew! 2025-11 With the advent of the Intercounty Highway system in the early 1970s, the Alger Co Road Commission designated the entirety of Au Train-Forest Lake Rd, including Arbutus St in Au Train, as part of Intercounty Route H-03. This, of coruse, includes the two blocks of Arbutus St which had been designated as M-162 in the 1930s.
History: 1925 (Oct 8) New! 2025-11 – A new 8.3-mile long state trunkline route is established in north-central Alger Co from the Munising north city limit westerly to Au Train and becomes a westerly extension of M-94. (This new trunkline only very loosely follows the modern-day route of M-28, but it does overlap in a few places west of Christmas. It departs Munising via Jasper Ave and Pipeline Trl and enters Au Train via modern-day Woodland Ave. Additionally, at this time, M-94 is a 10-mile spur route from Munising easterly via present-day H-58 to a point 10 miles east of downtown Munising.)
  1931 (Dec 7) New! 2025-11 – A six-mile westerly extension of M-94 is established beginning at the present-day intersection of M-28 & Woodland Ave east of Au Train and continues along the Lake Superior shoreline (roughly following modern-day M-28 to the Rock River near Shelter Bay. This new route bypasses the community of Au Train just to the north, but will not be completed and opened to traffic until the next year. In the meanwhile, the existing route of M-94 via Woodland Ave into Au Train also remains an established (and likely signed) trunkline route for the time being.
  1932 (Sept 15) New! 2025-11 – The State Highway Advisory Board reccommends a total of 67 miles of new trunkline routes for inclusion in the state highway system, as well as the cancellation of 36 miles of "unused" routes, for a total net gain of 31 miles. Two-tenths of one of those miles reccommended for approval by the State Administrative Board is a short spur route into Au Train.
  Former M-162 route marker1932 (Oct 29) New! 2025-11 – The segment of Woodland Ave from the newly-established route of M-94 (present-day M-28) just east of Scott Falls into Au Train is cancelled as a state trunkline route, leaving just the newer "Au Train bypass" closer to the shoreline as the officially-established route. However, the 0.2 mile stretch of Arbutus St (Au Train-Forest Lake Rd) from M-94 south into Au Train to the former M-94 at Woodland Ave is officially established as a trunkline route and given the M-162 designation.
  1938 (Dec 6) New! 2025-11 – Just a bit more than six years after it was established, the entirety of M-162 (all approximately 900 feet of it) is cancelled as a state trunkline and turned back to county control. State Highway Commissioner Murray D. Van Wagoner initiates a new policy of removing low-volume routes from the trunkline system which includes many of the short spur routes like M-162. Thus ends the first, and so far only, iteration of M-162—the desigation has not been used since on a highway in Michigan.
  1973 New! 2025-11 – By 1973, the entirety of Au Train-Forest Lake Rd, including Arbutus St in Au Train, is designated as part of Intercounty Route H-03.
Controlled Access: New! 2025-10 No portion of former M-162 upon decommissioning existed as freeway or expressway, existing largely before modern-day control of access principles are practiced.
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