Wyoming oversize load rules
Legal limits, pilot car requirements, travel restrictions, superload thresholds and permit fees for oversize and overweight loads in Wyoming.
Legal limits without a permit
| Width | 8′6″ (W.S. 31-18-802) |
|---|---|
| Height | 14′ |
| Length | 60′ single vehicle · 60′ semitrailer · 81′ semitrailer and trailer · 85′ other combinations (max three units) |
| Weight | 80,000 lb gross (Table I Interstate; Table II at 48′+ axle spread) |
What Pro adds for Wyoming
- 5 escort rules with counts by width, height, length and road type
- 4 travel restrictions: curfews, night, weekends, holidays
- Superload thresholds and conditions
- 3 published fee lines and permit lead time
- Lane routing with miles per state and a cost breakdown
Escort (pilot car) requirements
- 5 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
- 3 published fee lines with links to the fee schedule
- Validity periods and add-on charges
Common questions
When does Wyoming require escorts?
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What is a Class A superload in Wyoming?
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Can oversize loads move at night in Wyoming?
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Sources
- WYDOT Rules Chapter 5 §8, Safety Measures and Moves (escort thresholds)
- WYDOT Rules Chapter 5 §7, Permitted Hours and Dates of Movement; Weather
- WYDOT Rules Chapter 5 §4, Permit Types and Class A/B/C/D limits
- WYDOT Rules Chapter 5 §9, Escort Procedures
- Wyoming Statutes 31-18-802 to 804, size and weight limits and permit fees
- WYDOT overview of standard permitting and Class A superloads (2026)
- WYDOT trucking and commercial vehicles (permit information line)
Planning reference. Permits carry their own conditions, and city and county roads have separate rules. Confirm with the Wyoming Highway Patrol Overweight Loads Office (OWL) and Ports of Entry before moving a load. Found an error? Report it.
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