PERMITS
Oklahoma oversize permits are valid for three days. A permit must be obtained prior to entering the state.
OPERATING TIME
Travel is allowed from one-half hour before sunrise to one-half hour after sunset, seven days a week. Overweight vehicles can have continuous travel, but this must be requested when ordering the permit.
RESTRICTED TRAVEL
Oversize load movements are not allowed on the Interstate system through Cleveland, Oklahoma and Tulsa counties between 7:00 a.m. to 9:00 a.m. and 3:30 p.m. – 6:30 p.m. Monday through Friday. This restriction does not apply to overweight vehicles only. No permit travel is allowed on major holidays.
OKLAHOMA TURNPIKES
Loads up to 9’6″ wide are permitted without requiring a Pike Pass. Loads over 9’6″ wide up to 11’6″ wide (and up to 13’6″ wide on Cherokee Turnpike only) need a Pike Pass reference number for permitting. The maximum weight for the turnpikes is 108,000 pounds. Weight is paid for on the state permit; the turnpike does not charge extra above the usual per axle charge.
LEGAL DIMENSIONS
Length
59’6″ semi-trailer and load is legal on Oklahoma’s “U.S. Defense Highway System” which includes all Interstate routes and many of the main U.S. Highways. 53′ semi-trailer and load on other routes.
Width
8’6″ (8' on any highway having a surface width of less than 20 feet)
Height
13’6"
Weight
Gross - 80,000 on Interstate, 90,000 on non-Interstate routes (with legal tandem and tridem weights)
Single - 20,000
Tandem - 34,000
Tridem - 42,000
ROUTINE PERMIT LIMITS
Length
No set maximum
Width
16'
Height
Depends on routes
Weight
Single – 20,000
Tandem – 40,000 (with at least 4’3″ axle spacing) or 39,000 (less than 4’3″ spacing)
Tridem – 60,000 (57,000 with 4’2″ axle spacings)
Quad – 65,000
Steer Axle – 15,000 (With minimum spacing of 15′ steer to first drive axle). Requests for more than 15,000 pounds on steer axle have to go to bridge engineering for approval, taking an extra day or two.
For an overweight permit, your registration must be prorated for 90,000 for Oklahoma, or for at least the amount of gross weight you need permitted if less than 90,000 pounds. According to the Oklahoma Permit Manual, an approved scale weight ticket or a certification of gross weight from the shipper should
be attached to an overweight permit. Loads exceeding these dimensions will take extra time for approval.
ESCORTS
Length
Over 80′ on 2-lane highways – 1 escort
Over 100′ on 2-lane highways – 2 escorts
Width
Over 12′ on all highways – 1 escort
Over 14′ on two-lane highways or over 16′ on multi-lane highways – 2 escorts
Height
Over 15’8″ – 2 escorts on all highways; and “All public utilities and railroads along the route must be contacted in advance of the move by the permittee.”
MISCELLANEOUS
Dozers with blades that exceed 12 feet in width shall not be permitted to travel more than 50 miles from the base of operation. When exceeding the 50-mile limit, the blade is to be removed. Agricultural equipment is no longer exempt from needing permits in Oklahoma.
SIGNS, FLAGS & LIGHTS
“Oversize Load” signs are required on front of tractor and rear of 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 any oversize load. Rear overhang of 4 feet or more must be flagged.
