Speed limits are changing on 600 miles of freeway and 900 miles of non-freeway in Michigan starting Monday, May 1.
The speed limit signs begin changing Monday and new speed limits will be official when the roads are all signed. All the signs will be changed by mid-November, according to the Michigan Department of Transportation.
The following portions of freeway and limited-access freeway are slated to increase to from 70 to 75 mile-per-hour speed limits, while truck speed limits here will go from 60 to 65 miles-per-hour:
- I-75 β Bay City to US-23 in Mackinaw City (Bay, Arenac, Ogemaw, Roscommon, Crawford, Otsego, Cheboygan, and Emmet counties), and St. Ignace to Sault Ste. Marie (Mackinac and Chippewa counties)
- US-127 β I-69 to the end of the freeway at St. Johns (Clinton County), and the beginning of the freeway at Ithaca to I-75 (Gratiot, Isabella, Clare, Roscommon, and Crawford counties)
- US-131 β M-57 to the end of the freeway north of Manton (Kent, Montcalm, Mecosta, Osceola, and Wexford counties)
- I-69 β I-69 Business Route (Saginaw Highway) to Swartz Creek (Clinton, Shiawassee, and Genesee counties)
- I-69 β From the Genesee/Lapeer county line to I-94 (Genesee, Lapeer, and St. Clair counties)
- US-10 β M-115 to I-75 (Clare, Isabella, Midland, and Bay counties)
- US-31 β South Oceana County line to US-10 (Oceana and Mason counties)
The following sections of non-freeway will see increases to 65 mph:
- US-2 β Wakefield to Iron River (Gogebic and Iron counties)
- US-2 β St. Ignace to Rapid River (Mackinac, Schoolcraft, and Delta counties)
- US-23 β East of Cheboygan to east of M-65 (Cheboygan and Presque Isle counties)
- US-45 β North of US-2 to M-26 (Gogebic and Ontonagon counties)
- M-28 β East of Harvey to Christmas (Marquette and Alger counties)
- M-28 β Munising to I-75 (Alger, Schoolcraft, Luce, and Chippewa counties)
- M-28 β Wakefield to US-41 (Gogebic, Ontonagon, Houghton, and Baraga counties)
- M-32 β Atlanta to Alpena (Montmorency and Alpena counties)
- M-33 β Atlanta to Onaway (Montmorency and Presque Isle counties)
- M-37 β Mesick to Wolf Lake (Wexford and Lake counties)
- M-55 β US-31 to Cadillac West (Manistee and Wexford counties)
- M-64 β M-28 to Old M-107 (Ontonagon County)
- M-65 β US-23 to M-32 west junction (Arenac, Iosco, Alcona, and Alpena counties)
- M-65 β M-32 east junction to US-23 (Alpena and Presque Isle counties)
- M-68 β I-75 to US-23 (Cheboygan and Presque Isle counties)
- M-72 β Grayling to Mio (Crawford and Oscoda counties)
- M-72 β Fairview to M-65 north junction (Oscoda and Alcona counties)
- M-72 β M-65 south junction to Harrisville (Alcona County)
- M-77 β US-2 to M-28 (Schoolcraft County)
- M-115 β Benzonia to Mesick (Benzie and Wexford counties)
- M-123 β I-75 to Paradise (Mackinac and Chippewa counties)
- M-231 β M-45 to M-104 (Ottawa County)