Overview
Oklahoma oversize and overweight permits are issued by the Oklahoma Department of Public Safety, Size and Weights Unit. Single-trip permits are valid for three consecutive days.
Permit approval depends on the proposed route, dimensions, axle weights and infrastructure conditions.
Permit Office
| Office | Oklahoma Department of Public Safety, Size and Weights Unit |
| Address | 2401 NW 23rd St. Ste. 45, Oklahoma City, Oklahoma 73107 |
| Contact | 1 (877) 425-2390 / (405) 425-7012 |
| Hours | 7:00 A.M. – 6:45 P.M. (CT) |
Permit Basics
| Permit validity | Single-trip permits are valid for three (3) consecutive days. |
| Operating time | 7:00 A.M. – 6:45 P.M. (CT) |
Dimensions & Weights
Routine permit limits
| Length | No maximum |
| Width | 16′ |
| Height | 21′ on certain routes |
| Axle / group | Spacing | Weight |
|---|---|---|
| Single | — | 20,000 |
| Steering axle | — | 15,000 |
| Tandem | — | 40,000 |
| Tridum | — | 60,000 |
| Quad | — | 65,000 |
Escort Requirements
| Based on | Escorts required |
|---|---|
| Width | On 2-lane highways — width over 12′ up to 14′: 1 front |
| Width | On 2-lane highways — width over 14′: 2 (front & rear) |
| Width | On multi-lane highways — width over 12′ up to 16′: 1 rear |
| Width | On multi-lane highways — width over 16′ (on all highways and roads): 2 (front & rear) |
| Length | On 2-lane highways — length over 80′: 1 front |
| Length | On 2-lane highways — length over 100′: 2 (front & rear) |
| Height | On 2-lane highways — height over 14′6″: 2 (front & rear) |
| Height | On 2-lane highways — height at 15′9″: must contact all public utilities and railroads in advance; 2 front with height pole + 1 rear |
| Height | On multi-lane highways — height over 14′6″: 2 (front & rear) |
| Height | On multi-lane highways — height at 15′9″ or over: must contact all public utilities and railroads in advance; 2 front with height pole + 1 rear |
Notes
- Gross Weight — 5 Axles (steering, tandem, tandem): 95,000
- Gross Weight — 6 Axles (steering, tandem, tridum): 115,000
- Gross Weight — 7 Axles (steering, tridum, tridum): 135,000
- Gross Weight — 8 Axles (steering, tandem, tandem, tridum): 150,000