Spring weight restrictions are in effect as of 12:01 AM, March 6, 2020. Why are Spring Time Road Restrictions Necessary? Pavement base structures can be vulnerable in the spring. Over the winter, the roads can take a beating and the temperature changes make the pavement weakened. Follow this link to view road weight restrictions in South St. Paul: http://mn-southstpaul.civicplus.com/DocumentCenter/View/71/Spring-Road-Restriction-Map-2017?bidId=