ST. PAUL, Minn. - Winter load increases will end Thursday, March 14 and spring load restrictions will start Friday, March 15 on highways in the south, southeast, metro and central frost zones, according to the Minnesota Department of Transportation.

In this area, the central frost zone is south of Highway 10 from Moorhead to Motley. The frost zones can be found on the MnDOT load limits map.

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Road restriction maps showing locations of weight-restricted routes are listed at Click on Spring Load Restrictions and then any of the mapping options.

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. See axle weight limits.

Full-summer overweight permits can be issued during the spring load restriction period when engaging in interstate through movement travel only (no starting or stopping off the interstate system).

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 spring load restrictions or the gross vehicle weight schedule, call the Minnesota Department of Public Safety's Commercial Vehicle Enforcement at 651-350-2000.

For questions about oversize/overweight loads/permitting call MnDOT's Freight and Commercial Vehicle Operations - Oversize/Overweight Permits at 651-296-6000 or email

For updated road condition information, call 511 or visit