Seasonal Weight Restrictions

Seasonal Load Limits/Frost Laws help to preserve and protect against wear and tear on Calhoun County Roads that is caused by winter thaw and heavy vehicles.

The Calhoun County Sheriff’s Department and Michigan State Police may enforce seasonal weight restrictions and speed reductions while the Seasonal Load Limits/Frost Laws are in effect.

To download the Agricultural Frost Law Application, click here.

To learn more about the seasonal weight restrictions, click here.

For a draft list of 2014 all season roads in Calhoun County, click here.


This image shows a culvert being pushed up from the frost. This is a reason for weight limits (frost laws).