Manitoba Infrastructure

2016-2017 Manitoba's Highway Winter Seasonal Weights (WSW)

The Winter Seasonal Weights (WSW) program includes:  Winter Weight Premium (WWP), Winter Seasonal RTAC Routes Designation and Winter Seasonal Class A1 Highways Designation.

Winter Weight Premium  (WWP) means: 10% increase in the maximum gross axle weights-
For Non-RTAC Vehicles as set out in Schedule E (MB Reg 575/88):

1. on a single axle or axle group on a class A1 highway or class B1 highway
2. the gross vehicle weights not to exceed the prescribed maximum for a normal class A1 highway or class B1 highway

For RTAC Vehicles as set out in Schedule H (MB Reg. 575/88):

1. on a single axle on a RTAC route
2. on a tandem axle on a RTAC route up to but not to exceed 17,600 kg
3. on a single or a tandem axle on a class A1 highway or class B1 highway
4. normal weight on a tridem axle on a RTAC route, class A1 highway or class B1 highway
5. the gross vehicle weights not to exceed the prescribed maximum for a normal RTAC route, class A1 highway or class B1 highway

Winter Seasonal RTAC Routes Designation means: Reclassification of specific portions of class A1 highways and class B1 highways as RTAC routes:

1. normal RTAC route gross axle weights on all axle units plus the allowable WWP on a winter seasonal RTAC route
2. the gross vehicle weights not to exceed the prescribed maximum for a normal RTAC route
3. winter seasonal RTAC routes are listed in Schedule B- subsection 2(1) of MB Reg. 575/88

Winter Seasonal Class A1 Highways Designation means: Reclassification of specific portions of class B1 highways as class A1 highways:

1. normal class A1 highway gross axle weights on all axle units plus the allowable WWP on a winter seasonal class A1 highway
2. the gross vehicle weights not to exceed the prescribed maximum for a normal class A1 highway 
3. winter seasonal class A1 highways are listed in Schedule C- subsection 2(1) of MB Reg. 575/88