Central ND News

Spring load restrictions on Cass County highways are set to end on May 6, 2025. The Cass County Highway Department confirmed this change, aligning with North Dakota Century Code §39-12-03, which grants local authorities the ability to impose load restrictions on highways. These measures are typically implemented to prevent highway damage during the spring thaw, but may also be adjusted throughout the year under certain conditions.

The decision to discontinue the restrictions is based on several factors. "The Department monitors the daily high/low temperatures, which are used to calculate accumulated Freeze and Thaw Indexes," using these calculations and field personnel recommendations to determine the appropriate times for implementing and lifting the restrictions.

The Department emphasizes that "implementation and removal of Spring Load Limit Restrictions is highly dependent on weather." The Thaw Index is a critical element in this decision-making process, measuring the average daily temperature against a baseline of 29°F. Monitoring daily temperatures allows the Department to track thawing degree days, crucial for determining the extent of thawing and the necessity of restrictions.

The current policy includes a detailed weight limit system, with specified legal weights by axle and total vehicle weight, ensuring transport systems comply with necessary load limits. As these restrictions are subject to change depending on weather and road conditions, the Cass County Highway Department offers further information via their contact number.