ST. PAUL, Minn. – Winter load increases will begin Monday, Jan. 12, on unrestricted highways in the metro, south and southeast frost zones, according to the Minnesota Department of Transportation. Winter load increases are already in effect for the north, north-central and central frost zones.
Vehicles will be allowed to operate up to 10 percent over the standard legal maximum loads on unrestricted highways during the winter load Increase period. However, trucks must comply with current registration weight laws and not exceed registered gross weight tolerances.
Drivers should check with local agencies prior to increasing any weights on city, county and township routes. The sign erected on the roadway governs the load limit in effect. A winter weightincrease permit is required to take advantage of the 10 percent weight increase on interstate highways only; a permit is not required for state trunk highways.
For questions about legal weight/size trucking, call: Minnesota Department of Public Safety - State Patrol - Commercial Vehicle Enforcement; 651-405-6196 (select option 3, option 3).
For questions about over legal weight/size ‘heavy haul’ trucking, call: Minnesota Department of Transportation, Freight and Commercial Vehicle Operations - Oversize/Weight Permits, 651-296-6000 or email: firstname.lastname@example.org
The start and end dates for winter load increases are based on how weather is affecting roadway strength. These dates are established by monitoring roadway strength as weather conditions change. Therefore, the ending date for winter load increases is variable and drivers must check for updates throughout the year. Vehicle operators are required to check with MnDOT for the exact start and end dates. All changes are made with a minimum three calendar-day notice.
For the most current information, go to MnDOT’s automated 24-hour message center at 800-723-6543 for the U.S. and Canada, or locally at 651-366-5400 for the Minneapolis/St. Paul area. This information is also published on the MnDOT seasonal load limits website at