2020 Alberta frost laws, seasonal load weight and speed restrictions.
Just like any other Province Alberta has seasonal frost laws. However The Alberta Ministry of Transportation offers a e-mail notification service on their website to drivers who wish to stay up-to-date and legal on the latest road ban orders and seasonal weight restrictions. According to the website seasonal weights for heavy haul trucking are set according to the following schedule:
Spring: weather dependent, subject to thaw depth readings and begins at same time as Period 1 (weather dependent, subject to thaw readings of at last 25 cm.
Winter: weather dependent, subject to frost depth readings of one meter or more. In winter, trucking weights can be greater because the pavement is less vulnerable when the ground beneath it is frozen, providing support.
Seasonal weights for heavy haul trucking are set according to the following schedule:
- Spring: weather dependent, subject to thaw depth readings of at least 25 centimeters and begins at same time as Period 1 weights for service rigs
- Post-Thaw: June 16 (may begin one week earlier or one week later)
- Summer: July 1
- Fall: September 1
- Winter: weather dependent, subject to frost depth readings of 75 centimeters or more.
Seasonal weights for service rigs are set according to the following schedule:
- Period 1: weather dependent, subject to thaw depth readings of at least 25 centimeters 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
Alberta also publishes a “Road Ban List” of major highways. Typically, the document lists weight restrictions of 90% of 75% of permitted axle weights. Access to the bans list can be viewed here: https://www.alberta.ca/road-restrictions-and-bans-overview.aspx#form15865
The most recent frost/thaw line can be viewed here: Thaw/Contour Map
You can contact the Alberta Ministry of Transportation by e-mail: firstname.lastname@example.org for general frost law inquiries. Contact information for City, County and other municipalities can be viewed here.
It is important for truck drivers and trucking company dispatchers to make certain they are operating in accordance with the Alberta posted frost laws, seasonal load weight and speed restrictions that are posted. Changes to these restrictions is subject to change hourly during the winter and spring months. You are expected to be aware of these changes and operate accordingly. It is possible that heavy fines may be levied as well as your truck being ordered out of service and not permitted to travel. We suggest you bookmark this page for future reference.
Seasonal weight restrictions limit the maximum weight of vehicles allowed to travel on certain roads as a way to help prevent damage and protect public investment in the roadways.