Oklahoma State Regulations
Transportation Restrictions
Oklahoma County: Movement of oversize permitted loads is not allowed on the National System of Interstate and Defense Highways in Oklahoma County from 7:00 AM to 9:00 AM, and from 3:30 PM to 6:30 PM, Monday through Friday.
Tulsa County: Movement of oversize permitted loads is not allowed on the National System of Interstate and Defense Highways in Tulsa County from 7:00 AM to 9:00 AM, and from 3:30 PM to 6:30 PM, Monday through Friday.
Cleveland County: Movement of oversize permitted loads is not allowed on the National System of Interstate and Defense Highways in Cleveland County from 7:00 AM to 9:00 AM, and from 3:30 PM to 6:30 PM, Monday through Friday. The two (2) mile section of Interstate 35 between State Highway 9 East (Exit 108) and State Highway 9 West (Exit 106) shall be exempt from this restriction.
Travel restricted during inclement weather.
The following holidays are restricted: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas.
Operating Time
Weekend Travel
Transportation Requirements
Superloads
Anything over Routine Issue dimensions require special approval from the DOT.
Oversize Load Signs
“Oversize Load” signs required for any oversize load.
Flags/Lights
12” red flags required at the four corners and widest point of any oversize load and at the end of any overhang over 4’.
Blades
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
and hauled separately if causing the load to be overweight.
Legal Limits
| Component | Restriction |
|---|---|
| Single Axle | 20,000 lbs. |
| Tandem Group | 34,000 lbs. |
| Tridem Group | 42,000 lbs. |
| Gross Weight | 80,000 lbs. On State And Interstate Highways | 90,000 lbs. On Other Roads |
| Width | 8’6″ |
| Height | 13’6″ |
| Length – Semi-Trailers | 53’ National Network of Highways | 59’6” Other Routes |
| Length | 75’ National Network of Highways | 70’ Other Highways |
| Overhang | 3’ Front | 4’ Rear |
Routine Issues
| Component | Restriction |
|---|---|
| Steer Axle | 15,000 lbs. |
| Single Axle | 20,000 lbs. |
| Tandem Group | 40,000 lbs. |
| Tridem Group | 60,000 lbs. |
| Quad Group | 80,000 lbs. |
| Gross Weight – 5 Axles | 95,000 lbs. |
| Gross Weight – 6 Axles | 115,000 lbs. |
| Gross Weight – 7 Axles | 135,000 lbs. |
| Gross Weight – 8 Axles | 151,000 lbs. |
| Width | 16′ |
| Height | Must Clear Clearances On Route By 2” |
| Length | 110′ |
Escort Requirements
| Dimension | Requirement |
|---|---|
| Width Over 12′ | 1 Front On 2-Lane Highways | 1 Rear On 4-Lane Highways |
| Width Over 14’ | 2 (Front & Rear) On 2-Lane Highways | 1 Rear On 4-Lane Highways |
| Width Over 16’ | 2 (Front & Rear) |
| Length Over 80’ | 1 Front On 2-Lane Highways | 1 Rear On 4-Lane Highways |
| Length Over 100′ | 2 (Front & Rear) |
| Height 15’9″ Or Over’ | 2 (Front W/ Height Pole & Rear) |