Portal:Michigan highways/Selected article/May 2012

The State Trunkline Highway System is made up of all the highways designated as Interstates, U.S. Highways and State Highways in the US state of Michigan. The system is maintained by the Michigan Department of Transportation (MDOT) and comprises 9716 mi of trunklines in all 83 counties of Michigan on both the Upper and Lower peninsulas, linked by the Mackinac Bridge. The system ranges in size from the unsigned Business Spur Interstate 375 (BS I-375) at 0.170 mi and signed M-212 at 0.732 mi to Interstate 75 (I-75) at 395.40 mi. Some trunklines in Michigan are maintained by MDOT but bear no signage along the route to indicate this. The remainder of the system is comprised of the Interstate, US and State Highways throughout Michigan. MDOT also maintains all of the business and connector route variants in the system. The system was formed in 1913 with passage of the State Trunkline Act. The first signs were installed in 1919, making Michigan the second state after Wisconsin to do so. (more...)

Recently added: M-107* US 23* BUS M-28