The Minnesota Department of Transportation will end spring load restrictions (SLR) in the CENTRAL frost zone Monday, May 4, and for the NORTH-CENTRAL and NORTH frost zones Friday, May 8, 2020 at 12:01 AM.
Full-summer overweight permits will start in the SOUTH frost zone Monday, May 4, 2020.
Spring load restrictions have already ended in the METRO, SOUTHEAST and SOUTH frost zones. Full-summer overweight permits are already available in the METRO and SOUTHEAST frost zones.
Frost zones and restricted routes can be found on the MnDOT load limits map. Start and end dates and other load limit information are shown here.
Overweight permits for more than 80,000 pound gross vehicle weight continue during spring load restrictions 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.