Seasonal weight restrictions on roadways are implemented to protect pavement integrity during periods of thaw. The state provides a visual representation outlining regions where these limitations are in effect, denoting specific zones and routes impacted by reduced maximum axle load allowances. These regulations are typically enacted in the spring as temperatures fluctuate around freezing, causing roadbeds to soften and become more susceptible to damage from heavy vehicles.
Enforcement of these seasonal limits minimizes long-term road maintenance costs and extends the lifespan of transportation infrastructure. Historical data and real-time weather monitoring inform the determination of restriction start and end dates. These measures ensure continued safe and efficient transportation by preventing premature deterioration caused by increased axle weights on vulnerable surfaces. Careful adherence to these rules significantly contributes to the preservation of Michigan’s road network.
