Be aware of fake MDOT texts demanding toll or traffic ticket payments. MDOT does not operate any toll roads. Contact the Michigan Attorney General for information on how to identify scams and file a complaint.
To protect both infrastructure and motorists, our truckers page details the rules, guidelines, restrictions, and permits for safe transport across Michigan.
The map shows the current all-season and seasonal truck routes.
Copies of the truck operators map are available at MDOT regions and TSC offices, MSP Motor Carrier Division posts and the Michigan Trucking Association.
Effective 7 a.m. Friday, May 15, MDOT will lift the remaining seasonal weight restrictions on all state trunkline highways in the state of Michigan. State routes typically carry I, M or US designations.
Weight restrictions are implemented during the annual spring frost thaw period and are now completed for the 2026 season.
Effective 7 a.m. Friday, May 8, weight restrictions will be lifted on all state trunkline highways from the southern Michigan border north to and including US-2 from the Wisconsin border in Ironwood east to M-28 in Wakefield then east on M-28 to I-75, then north on I-75 to the International Bridge in Sault Ste. Marie.
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 the US-2/M-28/I-75 line. State routes typically carry M, I or US designations.
The Michigan Transport Routing and Internet Permitting System (MiTRIP) allows applicants to order oversize/overweight single trip and extended permits to travel on state and federal highways in Michigan. Registration must be done through MPG using a credit/debit card or electronic fund transfer (e-Check, business check) with bank accounts in the United States.
Existing business and permit services
Business with existing extended permits
Once a company is registered, Delegated Business Authority can be used to give access to all other users in the company.
Clearing temporary internet files and session cookies
For general permit questions, contact 517-241-8999 and select option 2.
The MDOT Permit Gateway (MPG) is the official portal for ordering and renewing permits. For technical support (e.g., password or login help), contact MDOT-MPG@Michigan.gov or call 844-806-0002, option 1.
Vehicle-bridge collisions result in serious injuries, significant property damage and major congestion problems. It is important to know the height of your load. If you have questions or need assistance, contact your local county road commission or MDOT Permits Unit at 517-241-8999.
Ban on hand held cellular phones
Bridge load posting processes and practices
Federal Motor Carrier Safety Administration
Maximum axle loadings in relation to tire size
Maximum truck loadings and dimensions
Michigan's truck-weight law and truck user fees
Moving mobile homes and building modules
Michigan Health & Human Services
Homeland Security Blue Campaign
If moving watercraft destined for any western state, the carrier shall contact Pacific States Marine Fisheries Commission's (PSMFC) Call Before You Haul hotline to make arrangements to have your watercraft inspected and if need be, decontaminated. This program aims to prevent aquatic invasive species spread.
Call 844-311-4873 or visit westernais.org/callbeforeyouhaul prior to hauling.
