That Time of Year Again: Lighten the Load Spring-Like Weather Brings on Weight Restrictions for RoadsContact: Lt. David Ford (517) 336-6449Agency: State Police
MARCH 4, 2004
State law provides the months of March, April and May are automatically reduced loading months, but the statute also allows the Michigan Department of Transportation (MDOT) and the county road commission to implement those restrictions earlier or suspend reduced loading, depending upon weather conditions.
Along with reduced loading provisions are reduced speeds. For vehicles over 10,000 lbs. operated on reduced loading roads, the speed limit drops to a maximum of 35 mph, regardless of the posted limit. Speed, in conjunction with axle weights, has a tremendous impact on the creation of potholes.
The term "frost law" refers to the amount of frost remaining in the ground. The warming and cooling of the ground during the up and down weather of spring causes the pavement to heave and buckle, creating potholes and broken pavement.
MDOT has a 24-hour phone number where callers can listen to a recorded message on the current status of reduced loading provisions on state roads by calling 800-787-8960, or by going on-line at www.michigan.gov/mdot. For local roads, contact your county road commission, or go on-line at http://www.micountyroads.org.