North Dakota

North Dakota interstate GVW limit: 80,000 lbs. State highways allow up to 105,500 lbs with proper axle configuration. Per-axle limits: Single axle 20,000 lbs, Tandem axle 34,000 lbs, Tridem axle 42,000 lbs. Federal bridge formula on interstates; North Dakota allows higher GVW on state highways with additional axles. Enforcement tolerance: No general tolerance during spring restrictions.

Height: 14 ft. Width: 8 ft 6 in. Trailer length: 53 ft (semitrailer). Overall combination length: 103 ft 6 in combination (on designated routes).

Oversize/overweight permits through NDDOT online system Fees: Single-trip: $20; Annual: $100. Kentucky oversize permits are not directly honored in North Dakota. You will need to obtain a North Dakota-specific permit for oversize/overweight loads. Apply online: https://www.dot.nd.gov/divisions/mvl/motor-carrier/oversize-overweight.htm Enforcement: NDHP and NDDOT enforcement; weigh stations and portable enforcement.

Agricultural: Agricultural vehicles exempt on state highways year-round; harvest season allows extended weights up to 105,500 lbs.

Spring load restrictions reduce weights by 25-30% on posted roads; typically March through May. Check with the state DOT for current postings and dates before planning your route.

For the most current weight and size regulations, permit applications, and seasonal restriction updates, visit the official North Dakota DOT page at https://www.dot.nd.gov/divisions/mvl/motor-carrier/. Contact the North Dakota Department of Transportation for specific routing questions.