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MDOT is the agency responsible for the day-to-day maintenance and operations of the State Trunkline Highway System, which includes the Interstate Highways in Michigan.. These highways are built to Interstate Highway standards, [6] meaning they are all freeways with minimum requirements for full control of access, design speeds of 50 to 70 miles per hour (80 to 113 km/h) depending on type of ...
Three-legged highway in Mackinaw City: 1928 [55] 1957 [89] Connected the State Highway Ferry Docks with the Fort Michilimackinac State Historic Park and US 31: M-108: 1.069: 1.720 I-75 near Mackinaw City: Michigan Welcome Center in Mackinaw City 1960 [90] 2010 [91] M-109: 6.831: 10.993 M-22 near Empire: M-22 in Glen Arbor
MDOT is the agency responsible for the day-to-day maintenance and operations of the State Trunkline Highway System, which includes the U.S. Highways in Michigan.The numbering for these highways is coordinated through AASHTO, [6] an organization composed of the various state departments of transportation in the United States. [7]
The MSHD assigned internal highway numbers to roads in the system, and in 1919, the numbers were signposted along the roads and marked on maps. The US Highway System was created in 1926, and highways in Michigan were renumbered to account for the new designations.
National Highway System, Michigan (PDF) (Map). Scale not given. Lansing: Michigan Department of Transportation ... Road Map of Kent County, Michigan (Map) ...
The State Trunkline Highway System of the US state of Michigan is a network of roads owned and maintained by the Michigan Department of Transportation (MDOT). The most prominent of these roads are part of one of three numbered highway systems in Michigan: Interstates Highways, US Highways, and the other State Trunklines.
After nearly a decade of efforts, the first two test highways were designated, one each in the Lower and Upper peninsulas of the state and included on the 1970 state highway map. The system was created and expanded in scope c. October 5, 1970, after it was approved by the County Road Association of Michigan and the State Highway Commission.
M-22 is an original trunkline designation dating back to the 1919 designation of the system. Reroutings have moved the highway closer to the water between Suttons Bay and Traverse City. A section of the highway was used temporarily for another highway, M-109. Two sections of the highway have been designated as separate Pure Michigan Byways.
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