Winter truck load increases will begin Friday, Dec. 14, on unrestricted highways in the central frost zone, according to the Minnesota Department of Transportation. 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 before increasing any weights on city, county and township routes. A winter weight increase 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. The start and end dates for winter load increases are based on how weather is affecting roadway strength.