2017-2018 Manitoba's Highway Winter Seasonal Weights (WSW)

Three Climate Zones

Due to differing freezing and thawing rates, the province has been divided into three climate zones for the purpose of implementing the WSW (the start and/or end dates in the three climate zones may be different):

  • Zone 1- means the Province of Manitoba south of the line that includes PTH #77, going easterly to include PR #513 (Gypsumville) and the northern tip of Black Island, following the eastern shore of Lake Winnipeg to the north shore of the Winnipeg River, easterly along the north shore of the Winnipeg River to PR 304 and easterly to the Ontario border.
  • Zone 2- means the Province of Manitoba north of Zone 1 and south of the line that includes Sherridon Road (Sherridon), going easterly to include PR 393, Wabowden Access Road (Wabowden) and Sipiwesk Lake Access Road, and easterly to the Ontario border
  • Zone 3- means the Province of Manitoba north of Zone 2
Three Climatic Zones

To see roadway detail, please visit the Weight Maps. For detail on the WSW, please see the WSW Order, Allowable Weights and Vehicle Weights and Dimensions on Classes of Highways Regulation MB Reg 575/88.