Oklahoma Oversize Permits


Oklahoma oversize/overweight permits are valid for three days. You must have a permit prior to entering the state.


One-half hour before sunrise to one-half hour after sunset, seven days a week. Overweight-only can have continuous travel, but it must be requested when ordering your permit.


Loads up to 9’6″ wide are permitted without needing a Pike Pass. Loads over 9’6″ wide up to 11’6″ wide (and up to 13’6″ wide on the Cherokee Turnpike only) need a Pike Pass reference number for permitting. The maximum weight for the turnpikes is 108,000 lbs. Weight is paid for on the state permit; the turnpike does not charge extra above the usual per axle charge.


Height: 13’6″
Width: 8’6″ (8′ on any highway having a surface width of less than 20 feet)
  • 59’6″ semitrailer and load is legal on all Interstate routes and many of the main U.S. Highways
  • 53′ semitrailer and load on other routes
  • Single – 20,000
  • Tandem – 34,000
  • Tridem – 42,000

Gross weight is 90,000 lbs. on non-Interstate routes (with legal tandem and tridem weights)

Gross weight is 80,000 lbs. on Interstates


Height: Depends on routes
Width: 16′
Length: No set limit
  • Single – 20,000 lbs.
  • Tandem – 40,000 lbs. (with at least 4’3″ axle spacing) or 39,000 lbs. (less than 4’3″ spacing)
  • Tridem – 60,000 lbs. (57,000 with 4’2″ axle spacings)
  • Quad – 65,000 lbs.
  • Steer Axle – 15,000 lbs. (min. spacing should be 15′ steer to first drive axle)

*Requests for more than 15,000 lbs. on steer axle have to go to bridge engineering to get approved, which adds an extra day or two of waiting.



When Escorts are Needed:

On 2-Lane Highways:

Length over 80′ 1 escort vehicle in the front
Length over 100′ 2 escort vehicles (front and rear)
Heigth 15’9″ or over 2 escort vehicles (front and rear)
Width over 12′ 1 escort vehicle
Width over 14′ 2 escort vehicles (front and rear) 

On Multi-Lane highways:

Height 15’9″ or over *2 escorts (front and rear)
Width over 12′ 1 escort (rear)
Width over 16′ 2 escorts (front & rear)
(on all highways and roads)

*Height 17′ or over – must contact all public utilities and railroads along the route in advance of the move.


Mobile Homes & Boats:

On 2-Lane Highways & Roads:

Length over 80′ 1 escort
Width over 14′ but not over 16′ 2 escorts (front and rear)
Width over 12′ but not over 14′ 1 escort (front)

On Multi-Lane Highways:

Width over 14′ but not over 16′ 1 escort (rear)


“Oversize Load” signs are required on the front of the tractor and the rear of the load or trailer (whichever extends the farthest) on all oversized loads moving under permit. They are also required on two-lane highways when the load exceeds 59-1/2 feet in length. Flags are required at the widest point of an oversize load. A rear overhang of 4 feet or more must be flagged.


Oversize load movements are not allowed on the Interstate System through Cleveland, Oklahoma, and Tulsa counties between 7:00 a.m. and 9:00 a.m. and 3:30 p.m. and 6:30 p.m. Monday through Friday (does not apply to O/W only). No oversize/overweight travel is allowed on major holidays.

You can also obtain any trip and fuel permits you may need with our sister site!