Canadian frost laws and seasonal load restrictions on roads, including road bans, for oversize loads which may have been weakened due to excess water are in effect now for some provinces.
A.B. – Effective as of 3/12
B.C. – To protect the roadway, the B.C. Ministry of Transportation and Infrastructure has in place a Seasonal Strength Loss Program for heavy vehicles and commercial transport trucks on B.C. Highways. This program identifies and imposes load restrictions on roads, or portions of roads that have been weakened by excess water in the road base. Once the road has been determined to be structurally sound, load restrictions can be rescinded.
Manitoba – Began March 13 for Zone 1 and are scheduled for 3-16 for Zone 2.
New Brunswick – Frost laws begin here on 3-15 for the southern part of the province and 3-17 for the northern part
Nova Scotia – The Province of NS has a few areas already under restrictions, but many begin on 3-16
Ontario – The provinces Highway Traffic Act enforces oversize load restrictions, which start at different times.
Saskathewan – No start or end dates, but some have been in effect since the first week of March.
Quebec – Zone 1 frost laws began 3/15.