Overweight travel on Alberta’s Primary and Secondary’s highways is restricted by
Axle Groups and Loading Periods. Please refer to the weight charts listed below
for a complete breakdown of each Axle Groups allowable weight by Loading Period.
Note: In order to travel at the weight listed for each Loading Period, a Provincial
Overweight Permit must be obtained.
Axle weights are divided into multiple Legal Weights; and a single set of maximum weights for their Primary Highways and Secondary/Grid roads.
Permits are required when exceeding legal weights for the specific road classifications being used or when below legal axle weights; but exceeding Gross Behicle Weight of 49,000 Kgs on Secondary/Grid Roads and 53,500 Kgs on Primary Roads.