Route information | ||||
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Maintained by MDOT | ||||
Length | 39.186 mi[1] (63.064 km) | |||
Existed | 1939[2][3]–present | |||
Major junctions | ||||
West end | M-25 near Bay Port | |||
East end | M-25 in Harbor Beach | |||
Location | ||||
Country | United States | |||
State | Michigan | |||
Counties | Huron | |||
Highway system | ||||
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M-142 is an east–west state trunkline highway in The Thumb region of the US state of Michigan. It is a "trans-peninsular" highway in that it travels through an agricultural area from Bay Port on Saginaw Bay to Harbor Beach on Lake Huron. The current trunkline in Huron County was originally parts of other state highways that date back to the initial 1919 signposting of the state highway system in the state. The designation was applied in 1939, and the road has remained unchanged since it was completely paved in the 1950s. One other highway, near Lake City, carried the number in the 1930s.