The first map displays currently restricted routes. The frost zones are color-coded and have pop-up message to indicate the load limits in effect. The second map displays the six frost zones in Minnesota and the routes which have load restrictions (5 or 7 tons) during spring load restrictions. Spring load restriction dates for each frost zone are announced at least three calendar days in advance at at Seasonal Load Limit dates or from a recording at 651-366-5400 or toll free at 1-800-723-6543.
Current load limits
Choose a frost zone to view load limits in effect.