The Michigan State Highway Department, predecessor to the Michigan Department of Transportation, was authorized in 1919 to take over the state trunk line system and ordered to sign the numbered ...

One of the most trivial factoids about Michigan's most famous island? It's the home of M-185, the only state highway in the United States where cars are verboten.

The state says M22 LLC cannot keep the trademark for the popular Northern Michigan highway.

The primary purpose of MDOT is to maintain the Michigan State Trunkline Highway System which includes all Interstate, US and state highways in Michigan with the exception of the Mackinac Bridge.

Starting Wednesday, April 12, weight restrictions will be lifted on all state trunkline highways from Michigan’s southern boarder to north of the Mackinac Bridge.

Michigan DOT has updated the area of the state currently under spring weight restrictions. Also: Bestpass partnering with CDL legal services firm; latest Highway Angel.

Starting at 7 a.m. Monday, March 14, weight restrictions will be imposed and enforced on all state trunkline highways from the Michigan/Indiana and Michigan/Ohio state lines north to and including … ...

Speed limits would also be reduced by 10 mph in “hospital highway zones,” defined as a state trunkline highway within 1,000 feet of a hospital boundary that has a posted speed limit of at ...

Starting Monday, weight restrictions will be imposed and enforced on all state trunkline highways from the Michigan/Indiana and Michigan/Ohio state lines north to and including: M-20 from the ...

Effective 6 a.m. Monday, March 1, weight restrictions will be imposed and enforced on all state trunkline highways from the Michigan border north to and including M-20 from the interchange with US ...