E-Bulletin: Alberta Transportation One-Window Notification: Seasonal Weight Update

January 5/2024

Seasonal Weights for Heavy Haul and Service Rigs:

Effective 12:01 am, Monday, January 8, 2024, Winter season weights for heavy haul will come into effect on roads north of and including Township 27.

Period 4 weights for service rigs remain in effect on roads province wide.

The frost/thaw contour map is available online at:

Historical dates of seasonal weight changes from 1989 to the present are available online at:

Note: Web browsing history may need to be cleared from web browser first prior to viewing the updated files.