Effective 6:00 am Monday, March 6th, 2023 weight restrictions will be imposed and enforced on all state trunk line highways within an area of Michigan described as follows: Highways north of a line on M-46 in Muskegon County from the US-31 Business Route in the City of Muskegon then east to US-131 then North on US-131 to M-46 then east to the intersection of M-25 in Port Sanilac, Sanilac County. Highways south of a line on M-55 from the US-31 intersection in Manistee County east to M-66 in Missaukee County then north on M-66 to M-55 in Missaukee County then east on M-55 to the intersection of US-23 in City of Tawas, Iosco County.
State trunkline highways typically carry M, I, or US designations. Weight restriction information and updates may be obtained by calling 1-800-787-8960. For companies located in Canada or New Jersey, information may be obtained by calling 517-335-0023.
– On routes designated as “All Season Routes” (green or gold on the MDOT Truck Operators Map) there will be no reduction in legal axle weight.
– On routes designated as “Seasonal” (solid or dashed red on the MDOT Truck Operators Map) there will be a weight reduction of 25% for rigid pavements and 35% for flexible pavements.
Extended permits will be valid for oversize only in the weight restricted area.
Single trip permits will not be issued for overweight loads or loads exceeding 14 feet in width, 11 axles and 150 feet in overall length in the weight restricted area.
Detailed Weight Restriction information may be obtained by linking to www.michigan.gov/truckers.
Please refer to the MDOT Truck Operator’s Map for route designations.
Spring Weight Restrictions Bulletin:
https://mdotjboss.state.mi.us/APSWB/SWBHome.htm?bulletin=weight
To check the status of any current restrictions on county jurisdiction roadways click here.
If you have any questions, please contact any member of the MITA engineering team:
Rachelle VanDeventer | rachellevandeventer@thinkmita.org
Glenn Bukoski | glennbukoski@thinkmita.org
Jeremiah Leyba | jeremiahleyba@thinkmita.org
They can also be reached by phone at the MITA office: 517-347-8336.
