Government mail service may be affected by the Canada Post labour disruption. Learn about how critical government mail will be handled.
Road restrictions
Find information about route restrictions caused by size limits on highways, overhead structures, bridge restrictions and bridge maintenance projects.
- Lane Restrictions List
- Directory of road authorities
- Restricted Bridge List for Provincial Highways
- Restricted Bridge List for Vehicles with Tridem Axles
- Vertical Bridge Clearances
Road bans
Road bans reduce the maximum weight allowed on certain roads to prevent damage during weak or thawing conditions.
Current road bans
See the list of provincially banned roads in the Road Ban List (unofficial).
For toll-free road ban information on provincial highways, call 1-855-ROADBAN (1-855-762-3226).
For bans on local roads, contact county or municipal district offices. See the directory of road authorities.
Exemptions
Some vehicles may be eligible for road ban exemptions under Section 12 (5-7) of the Commercial Vehicle Dimension and Weight Regulation. Other vehicles may also qualify for exemptions through a permit and the eligibility rules are explained on the exemption form.
Apply by filling out the Road Ban Exemption Permit Request form and submitting to the Central Permit Office at [email protected].
Road ban and seasonal weight notification
Stay up-to-date with road ban orders and seasonal weight changes by subscribing to the one-window notification service.
Historical road bans
Seasonal weights
Seasonal weights support overweight permit programs by setting weight limits during changing weather conditions.
Heavy haul seasonal weight
- Spring: weather dependent, subject to thaw depth readings of at least 25 cm and begins at same time as Period 1 weights for service rigs
- Post-thaw: June 16 (may start one week earlier or one week later)
- Summer: July 1
- Fall: September 1
- Winter: weather dependent, starts when frost depth readings of 75 cm or more
Service rig seasonal weights
- Period 1: weather dependent, subject to thaw depth readings of at least 25 cm and begins at same time as spring weights for heavy haul
- Period 2: June 16 (may begin one week earlier or one week later)
- Period 3: July 16
- Period 4: September 1
Frost and thaw depths are monitored at 70 frost probe stations throughout the province. Readings are used to determine the start of spring/Period 1, winter/Period 4 and placement of thaw or frost line.
See placement of current frost or thaw line in the Frost/Thaw Contour Map.
Historical Seasonal Weight Changes
Canadian Trucking Hub
Learn more about the Canadian Trucking Regulations Hub at: CanTruckHub – Canadian Trucking Compliance. A tool that brings information about trucking regulations together in one place, helping reduce confusion and improve efficiency across jurisdictions.
Contact
Connect with the Central Permit Office:
Toll free: 1-800-662-7138
Phone: 403-342-7138
Email: [email protected]
See applications and permits for programs associated with provincial highways.