District Of Columbia Axle Weight Limits

Weight and Dimensions Restrictions

A Washington District of Columbia Oversize/Overweight Permit is required when traveling on any city street, state route, or interstate highway within the District and the vehicle and/or loads is:

• Any vehicle exceeding the District axle and gross weight limitations (21,000 pounds for single axle, 34,000 pounds for tandem axle, see Chapter 25 of Title 18, DCMR);
• Any vehicle wider than 8 feet - 6 inches (including load);
• Any vehicle, other than a bus, over 40 feet long;
• A vehicle with a combined overall length of over 55 feet;
• A bus longer than 60 feet or wider than 8 feet - 6 inches;
• A vehicle higher than 13 feet - 6 inches (including load.

For other details and costs see https://ddot.dc.gov/node/482382