Home to all three branches of the U.S. federal government, Washington, D.C., or the District of Columbia, has been our nation’s capital since 1790. And if you find yourself driving an oversized load through the place where bills become laws, you’ll need to obtain an oversize District of Columbia permit, which is where The Permit Company comes in.
At The Permit Company, we help you obtain oversize and overweight truck permits by working directly with local agencies on your behalf. If you have any questions about moving oversized loads through the District of Columbia or securing a permit, you can find the answers below.
How long are oversize permits valid in the District of Columbia?
A single trip permit is valid for one trip only—usually five consecutive days.
What are the legal dimensions for loads in The District of Columbia?
The legal limits in The District of Columbia are as follows:
Gross Weight: 80,000 lbs.*
Width: 8’6” on all roads
Height: 13’6” on all roads
Length: 40’ for single units and buses on all roads; 48’ without trailer, 55’ overall for semi-trailers on designated highways and 55’ overall on all other roads; 28’ for twins and doubles on designated highways (not allowed on other roads); 55’ with trailer for autotransporters on all roads; Rocky Mountain doubles, turnpike doubles and triples not allowed on any roads; 55’ with trailer for saddle mounts on all roads.
*Federal Bridge Formula applies.
What are the permit limits for loads in The District of Columbia?
The routine-issue permit limits in The District of Columbia are as follows:
Single: 31,000 per axle
Tandem: 31,000 per axle
Tridem: 31,000 per axle
Quad: 31,000 per axle
Gross Weight: The maximum weight allowed will be considered on a case by case basis. The maximum gross weight allowed depends on where the vehicle will be traveling. No single axle can exceed 31,000 lbs.
Length: The maximum length is determined by the routes traveled. Extreme lengths will require night travel.
Width: The maximum width is determined by the routes traveled. Vehicles will be allowed to travel if the street can handle the width. Extreme widths will require night travel.
Height: The maximum height is determined by overhead clearance. Extreme height will require night travel.
Is continuous travel allowed for oversize permits in The District of Columbia?
Travel is allowed 24 hours a day unless the vehicle’s width and height are far above the limits. Oversized vehicles may be restricted to night travel between the hours of 10:00 p.m. and 5:00 a.m.
Weekend travel is allowed. Travel is not prohibited on holidays.
When are escorts needed in The District of Columbia?
On all highways:
1 front escort needed for widths more than 12’.
1 front escort needed for heights more than 13’6”.
1 front escort needed for lengths 80’ or more.
1 escort needed for any axle weight more than 31,000 lbs.
1 front escort needed for weights more than 79,000 lbs.
What is a superload in The District of Columbia?
Loads 140,000 lbs. and up need special approval. Submit a weight sheet and a cover sheet including axle weights and spacings.
Allow at least two weeks to get an application processed.
If you need help getting an oversize permit in The District of Columbia or have a question about permits in any other states, give us a call at (800) 359-9407 or send us an email.