North Dakota interstate speed limit rising to 80 mph in August

North Dakota’s interstate speed limit will increase to 80 mph starting Aug. 1, according to reporting by the North Dakota Monitor. Gov. Kelly Armstrong signed House Bill 1298 into law on May 5, raising the limit and increasing fines for speeding violations.

The new law sets a fine of $20 or $5 per mph over the limit — whichever is greater — on roads posted at 65 mph or higher. On lower-speed roads, fines will be $20 or $3 per mph over. Drivers exceeding the limit by more than 16 mph will face an additional $20 fine. Speeding in construction zones with workers present will now carry an extra $150 fine. Armstrong said in a statement that the law balances higher limits with deterrents, aligning the state’s policy with South Dakota and Montana.