MDOT lifting some spring weight restrictions on state highways in Upper Peninsula Friday


April 23, 2020 — Effective 7 a.m. Friday, April 24, the Michigan Department of Transportation (MDOT) will lift seasonal weight restrictions on all state trunkline highways from the southern Michigan border north to and including US-2/US-141 at the Menominee River bridge west of Iron Mountain, then east on US-2 to St. Ignace, then north on I-75 to the International Bridge.  Restrictions will also be lifted east of I-75 in the Upper Peninsula, with the exception of M-185 on Mackinac Island.

Frost restrictions are still in effect for the remainder of the state and will be imposed and enforced on all state trunkline highways north and west of US-2 and I-75 and on M-185 on Mackinac Island. State routes typically carry M, I, or US designations.

On March 16, Gov. Gretchen Whitmer signed Executive Order 2020-12, temporarily lifting seasonal weight and other delivery-related restrictions for vehicles on state and local roads carrying essential supplies to mitigate the spread of Novel Coronavirus (COVID-19). This spring weight restriction update does not alter or affect the direction given in the governor’s order. Permits will still be required for loads exceeding the normal legal limits.

In areas with seasonal weight restrictions still in effect, the following will apply:

            – On routes designated as “all-season” (designated in green and gold on the MDOT Truck Operators Map), there will be no reduction in legal axle weights.

            – On routes designated as “seasonal” (designated in solid or dashed red on the MDOT Truck Operators Map), there will be a posted weight reduction of 25 percent for rigid (concrete) pavements and 35 percent for flexible (asphalt) pavements.

            – All extended permits will be valid for oversize loads in the weight-restricted area on the restricted routes. Single-trip permits will not be issued for any overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length on the restricted routes.

County road commissions and city public works departments put in place their own seasonal weight restrictions, which usually, but not always, coincide with state highway weight restrictions. Signs are generally posted to indicate which routes have weight restrictions in effect.

For weight restriction information and updates, call 800-787-8960, or you can access this information on MDOT’s website at, under “Restrictions.” All-season routes are designated in green and gold on the MDOT Truck Operators Map, which is available online. You also may sign up to receive e-mail alerts.

Trucking companies located in New Jersey and Canada can obtain information by calling 517-373-6256.

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