Weighmaster Information

Weighmaster Information

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 All Season Route Map
Public Utility Seasonal Permit
Agricultural Seasonal Permit

What are Seasonal Weight Restrictions?
Seasonal weight restrictions are an effort to preserve and protect Michigan's road system during the thawing and refreezing associated with spring.

Frost Law Restrictions:
During the time seasonal weight restrictions are in effect on frost-restricted routes, axle loadings are reduced by 25% on rigid based roads and 35% on flexible based roads. Most restricted state highways and county roads reduce axle loading by 35%. Speed limits on frost restricted routes are reduced to 35 MPH for every vehicle over 10,000 lbs. gross weight.

Weight Restricted Bridge Information is available HERE.

If you need further information please call:
(989) 831-5285

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