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.