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 Vehicle Weight of 49,000 Kgs on Secondary/Grid Roads and 53,500 Kgs on Primary Roads.
Single trip permits are available for vehicles exceeding legal axle weights and/or maximum gross vehicle weights. Term permits are also available to cover some overweight vehicles that are permanently mounted to travel over legal weight on their Steers only. The information required to obtain a weight term permit is:
Legal Secondary/Grid – Secondary Highways are all highways under the control of the Province that have a secondary legal weight. Grid roads are all local roadways which are under the control of the local rural Municipality. On these roads, an overweight permit is required when over the following weights: (if tires allow, must be a minimum of 11” or 279mm)
Single (with tandem drive): 5,500 Kgs
Single (with tridem drive): 7,300 Kgs
Tandem: 11,000 Kgs
Tandem: 14,500 Kgs
Tridem: 20,000 Kgs
Tandem (including 16 wheelers): 14,500 Kgs
Tridem (including 24 wheelers): 20,000 Kgs
Legal Primary Only – Primary Highways are all highways under the control of the Province that have a primary legal weight. On these roads, an overweight permit is required when over the following weights: (if tires allow, must be a minimum of 11” or 279mm)
Single: 7,300 Kgs
Tandem: 13,600 Kgs
Tandem: 17,000 Kgs
Tridem: 22,000 Kgs
Tandem: 17,000 Kgs
Tridem: 23,000 Kgs
*All Tridem weights listed are based on a tridem with a medium spread
Winter weights are put in place annually from about mid-November to mid-March, because the road bed freezes during this period, it is stronger and can withstand a heavier weight without being damaged.
Legal Winter Weights – Legal weights when the province is in winter season is different from Legal Primary and Legal Secondary weights. Rural Municipalities can choose to opt out of Winter Weights, so always ensure you check with the RM before travelling on their roadways.
Single with tandem drive (Secondary Road): 5,500 Kgs
Single with tridem drive (Secondary Road): 7,300 Kgs
Tandem (Secondary Road): 11,000 Kgs
Single with tandem drive (Primary Road): 5,500 Kgs
Single with tridem drive (Primary Road): 7,300 Kgs
Tandem (Primary Road): 13,600 Kgs
Tandem (Secondary and Primary Roads): 18,000 Kgs
Tridem (Secondary Road): 21,000 Kgs
Tridem (Primary Road): 22,000 Kgs
Tandem (Secondary and Primary Roads – including 16 wheelers): 18,000 Kgs
Tridem (Secondary and Primary Roads – including 24 Wheelers): 23,000 Kgs
Primary weight annuals are offered by some Rural Municipalities. These annual permits allow carriers to travel on RM Grid roads above legal secondary weights to a maximum of primary weights.
Nine-month primary highways are legal at primary weights for 9 Months of the year and change to legal secondary weights for the remaining spring months.
Highways in the south change to secondary from March 15 to June 15 and Highways in the north change to secondary from April 1 to June 30.
Only the legal weight changes for these highways; permits can still be applied for up to the maximum weights.
When these highways change to secondary weights they are subject to Spring Restrictions and must meet those weights.
All nine month primary highways south of (and including) Highway 16 (between Lloydminster and North Battleford), Highway 40 (between North Battleford and Prince Albert) and Highway 3 (between Prince Albert and the Manitoba Border) are in the South Region. The North Region consists of all remaining primary highways north of the south region.
The map will show you the highway weight classifications.
It identifies which roads are Primary and Secondary; as well as when the 9 Month Primary Weight roads change to Secondary.