Oklahoma oversize load rules
Legal limits, pilot car requirements, travel restrictions, superload thresholds and permit fees for oversize and overweight loads in Oklahoma.
Legal limits without a permit
| Width | 8′6″ |
|---|---|
| Height | 14′ on turnpikes, interstates, US and state highways · 13′6″ on county roads |
| Length | 53′ semitrailer · 45′ single vehicle |
| Weight | 80,000 lb gross on the interstate (Formula B) · 90,000 lb on other state highways |
At a glance
| Escorts | 6 escort rules, starting at 12′ wide |
|---|---|
| Superload | 2 review triggers (weight, width) |
| Travel | 4 restrictions (curfews, night, holidays) |
| Fees | 5 published fee lines |
Escort (pilot car) requirements
- 6 width, height and length thresholds with the escort count for each
- Overhang and route-type conditions
Travel restrictions
- 4 restrictions: curfews, night travel, weekends and holidays
- Which ones apply to a given load size
Superloads
- Exact thresholds and what the state requires past them
- Lead times, route surveys and police escort conditions
Permit fees
- 5 published fee lines with links to the fee schedule
- Validity periods and add-on charges
Common questions
When does a load need a pilot car in Oklahoma?
Over 12′ wide, over 80′ long on two-lane roads, or 15′9″ and higher (two escorts with a height pole). Over 14′ wide on two-lane roads takes front and rear escorts.
How wide can a load be on Oklahoma interstates?
16′. Wider loads must use the state highway system and pay a $500 special movement fee if they are newly manufactured items.
How much is an Oklahoma oversize permit?
$40 for oversize, $40 plus $10 per 1,000 lb over legal for overweight, or $80 plus the weight charge for both.
Sources
- OAC 730 Chapter 50, Size and Weight Permits (PDF)
- OAC 730:50-5-18, oversize vehicles and loads (escorts)
- OAC 730:50-5-6, oversize permit conditions
- ODOT permit fee addendum (PDF)
Planning reference. Permits carry their own conditions, and city and county roads have separate rules. Confirm with the Oklahoma DOT Size and Weight Permits before moving a load. Found an error? Report it.
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