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The purpose of WSW program is to allow higher than normal weights on Manitoba highways and roads during the winter season when the roadbed is in a frozen condition. Pursuant to the Vehicle Weights and Dimensions on Classes of Highways Regulation (MB Reg 575/88), Highway Traffic Act, Manitoba Infrastructure has developed a new policy, based upon scientific data, for flexible start and end dates of the WSW period. The WSW includes the winter weight premium (WWP), the winter seasonal RTAC routes designation and the winter seasonal class A1 highways designation.
General guidelines to winter seasonal weights are provided here. Please refer to MB Reg 575/88 for specific details.
The WSW Order is made available in the fall.
An earlier start date and a later end date will be communicated via this web site and the Highway Information (511) line.
Advertisements announcing that the WSW order is available will be published in the fall in the following publications:
December 1 is the latest date for the start of the WSW. The last day of February in the following year is the earliest date for the end of the WSW.
Climate Zone |
Start Date |
End Date |
Zone 1: |
December 1* |
February 28/29** |
Zone 2: |
December 1* |
February 28/29** |
* May be earlier depending upon weather conditions
** May be later depending upon weather conditions
The WSW orders start times will be 12:00 A.M. on the given start dates. The WSW orders will expire at 11:59 P.M. on the respective end dates.
For further information, please contact any of the following: