   Highway markers for Interstate 75, US Highway 23, and M-28 | |
 A map of state trunkline highways in the state of Michigan
Interstates US Highways State | |
| System information | |
|---|---|
| Formed: | May 13, 1913,[1] signed by July 1, 1919[2] |
| Length: | 9,669 mi[3][4] (15,561 km) |
| Highway names | |
| Interstates: | Interstate n (I-n) |
| US Routes: | US Highway n (US n) |
| State: | M-n |
| System links | |
The State Trunkline Highway System is all the state highways in Michigan. The system is controlled by the Michigan Department of Transportation (MDOT).[5]
- ↑ Michigan Legislature (1915) [enacted May 13, 1913]. "Chapter 91: State Reward Trunk Line Highways". In Shields, Edmund C.; Black, Cyrenius P. & Broomfield, Archibald (eds.). The Compiled Laws of the State of Michigan. Vol. 1. Lansing, Michigan: Wynkoop, Hallenbeck and Crawford, State Printers. pp. 1868–72. OCLC 44724558. Retrieved January 24, 2012 – via Google Books.
- ↑ Michigan State Highway Department (July 1, 1919). State of Michigan (Map). Scale not given. Lansing: Michigan State Highway Department. Upper Peninsula and Lower Peninsula sheets. OCLC 15607244.
- ↑ Michigan Department of Transportation (July 7, 2015). "Road & Highway Facts". Michigan Department of Transportation. Retrieved August 10, 2015.
- ↑ Measurement as of July 7, 2015[update].
- ↑ Michigan Department of Transportation (2010). Uniquely Michigan: Official Department of Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. Full map. OCLC 42778335 and 639960603.