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  2. List of county-designated highways in Michigan - Wikipedia

    en.wikipedia.org/wiki/List_of_county-designated...

    The county-designated highways in Michigan comprise a 1,241.6-mile-long (1,998.2 km) system of primary county roads across the US state of Michigan.Unlike the State Trunkline Highway System, these highways have alphanumeric designations with letters that correspond to one of eight lettered zones in the state.

  3. List of state trunkline highways in Michigan - Wikipedia

    en.wikipedia.org/wiki/List_of_state_trunkline...

    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: c. 1929 [24] current

  4. List of U.S. Highways in Michigan - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._Highways_in...

    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]

  5. Wikipedia : WikiProject U.S. Roads/Michigan/Map database

    en.wikipedia.org/.../Michigan/Map_database

    Next Generation PR Finder (Map). Michigan Department of Transportation. Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000.

  6. Michigan State Trunkline Highway System - Wikipedia

    en.wikipedia.org/wiki/Michigan_State_Trunkline...

    The state highway commissioner was required to sign the state trunkline highways, [61] and Michigan became the second state after Wisconsin to do so. [62] Alan Williams, Ionia County engineer, helped to design the diamond marker used to sign the highways; he is also known for placing a picnic table alongside US 16 (Grand River Avenue) in 1929 ...

  7. List of Interstate Highways in Michigan - Wikipedia

    en.wikipedia.org/wiki/List_of_Interstate...

    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 ...

  8. Portal:Michigan highways/Intro - Wikipedia

    en.wikipedia.org/wiki/Portal:Michigan_highways/Intro

    State Trunklines are the other state highways maintained by MDOT. These highways are completely owned and maintained by the state. Michigan highways are properly referred to using the M and never as "Route 28" or "Highway 115", but as M-28 or M-115. The marker used for state trunklines is a diamond with a block-letter "M" at the top.

  9. Interstate 75 in Michigan - Wikipedia

    en.wikipedia.org/wiki/Interstate_75_in_Michigan

    Interstate 75 (I-75) is a part of the Interstate Highway System that runs north–south from Miami, Florida, to Sault Ste. Marie in the Upper Peninsula of the US state of Michigan. I-75 enters the state from Ohio in the south, north of Toledo , and runs generally northward through Detroit , Flint , and Bay City , crosses the Mackinac Bridge ...