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Department of Highways and Infrastructure

When transporting goods and/or services in Saskatchewan, the maximum gross vehicle weight is dependent on highway classification.

Commercial truck limits and weight restrictions are in place on provincial highways at various times of the year. It is done to prevent damage to the surface or road bed. There are also opportunities to haul additional weight depending on weather and other factors.

Spring road restrictions are dependent on weather. Typically, these road restrictions start in early March in the southwest of the province, and the remainder over a two-to-three-week period.

Official spring restriction orders are issued every Tuesday and Friday (except Good Friday) by 12:30 pm (CST) during the ban period on the Highway Hotline, Saskatchewan’s road information network: www.saskatchewan.ca/highwayhotline.

When restrictions are implemented, they may be in place for up to six weeks. Restrictions may change with 48-hours-notice. If a prolonged weather cold period occurs, the weight restriction may be removed until weather conditions warrant it.

Nine-month primary weights
While the provinces of Alberta and Manitoba also incorporate seasonal restrictions that impose spring road bans, Saskatchewan is unique because of its nine-month primary weight highways. The nine-month primary weight highways resulted from a primary weight expansion, which supports truck-haul cost savings and economic activities, connecting communities to economic opportunities.

Originally, the nine-month primary highways were designed and constructed to carry only lower secondary weight loads. Weights are reverted back to the design loads (secondary weight) during spring (April 1 to June 30) to reduce damage from spring-thaw related deterioration.

Saskatchewan is a large province with considerable difference in climate in the north and the south. A change, made last year, takes into account the climatic differences in the north and the south of the province, while also maintaining the original intent of providing primary weight access for economic activities.

In the north, the annual weight increase on the nine-month primary highways will operate from July 1 to March 31 of the following year. In the south, the annual weight increase on the nine-month primary highways will occur earlier, from June 15 to March 15 of the following year. This change in the south will help to sustain road conditions where spring thaw occurs earlier.


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SUMMER  2020
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SPRING  2020
Spring 2020
WINTER  2019
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FALL 2019

The Western Canada Highway News Team

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Megan Funnell
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Dave Gill
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