Minnesota Department of Transportation

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April 29, 2022

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Spring load restrictions to end in all frost zones

ST. PAUL, Minn. – MnDOT will end spring load restrictions in various frost zones on the following dates:

  • Restrictions in the southeast and metro frost zones end Monday, May 2, at 12:01 a.m.
  • Restrictions in the south frost zone end Friday, May 6, at 12:01 a.m.
  • Restrictions in the central frost zone end Friday, May 13, at 12:01 a.m.
  • Restrictions in the north-central and north frost zones end Monday, May 16, at 12:01 a.m.

Please check with local agencies prior to increasing any weights on their routes. The sign erected on the roadway governs the load limit in effect.

Frost zones and restricted routes are on the MnDOT load limits map.

Start and end dates and other load limit information are at mndot.gov/loadlimits.

Overweight permits for more than 80,000 pound gross vehicle weight will continue and new permits will be issued if all axle and group weights are legal (axle weight limits).

Full-summer overweight permits can be issued, during the spring load restriction period, for travel on the interstate system only.

Middle-range overweight permits become available within each frost zone when spring load restrictions are lifted. Full-summer overweight permits become available two to three weeks after spring load restrictions are lifted. 

Ending dates for spring load restrictions are variable and based on how weather is affecting roadway strength. 

MnDOT will report start and end dates on its 24-hour automated message center at 1-800-723-6543 for the U.S. and Canada, and locally at 651-366-5400 for the Minneapolis/St. Paul area.

For questions about legal axle weight during SLR; Gross Vehicle Weight Schedule, call:

  • Minnesota Department of Public Safety
    State Patrol – Commercial Vehicle Enforcement

For questions about oversize/overweight loads/permitting call:

  • Minnesota Department of Transportation
    Freight and Commercial Vehicle Operations – Oversize/Overweight Permits
    Or email:  ofcvopermits.dot@state.mn.us

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 651-366-5400 for the Minneapolis/St. Paul area. This information is also published on the MnDOT seasonal load limits website at mndot.gov/loadlimits.