Northern Terminus: I-75 (Exit 336), at a partial interchange south of Mackinaw City
Length: 356.04 miles
Counties: Berrien, Van Buren, Allegan, Ottawa, Muskegon, Oceana, Mason, Manistee, Benzie, Grand Traverse, Antrim, Charlevoix, Emmet, Cheboygan
Routing: US 31 begins its trek through Michigan at the Indiana Border, just north of South Bend. The highway passes around the west side of Niles before intersecting I-94 and running concurrently with I-196 until Holland. At Holland, US 31 departs the interstate, following the Lake Michigan shoreline as a mix of freeway and divided highway. The freeway section of US 31 ends at Ludington; the highway becoming a conventional two-lane at-grade highway. The route continues to hug the Lake Michigan shoreline, through Traverse City until the Northern Terminus of the route at I-75 near Mackinaw City.
Links:
- US 31 @ Michigan Highways Ends -- Dan Garnell
- US 31 @ Michigan Highways -- Chris Bessert
- US 31 @ Endpoints of U.S. Highways -- Dale Sanderson
