Wyoming Oversized Load Transport Guide
Important: We are not a permit service and we do not arrange permits for carriers. All information provided below is for information purposes only. Always read permits and provisions carefully as we cannot guarantee the accuracy of information provided below.
For companies handling oversized load transportation in Wyoming, proper planning is essential for heavy load compliance. Here’s what you need to know about permits, dimensions, and escort requirements for transporting large equipment through the Equality State.
Permit Requirements
- Same-day permits: Obtained at Ports of Entry (must call at least 1 hour ahead).
- Strict compliance: Failure to notify results in $500 fines and 24-hour shutdowns.
- Validity: Typically good for one day or single trip.
- Holiday Note: Ports closed on holidays – plan ahead for single-trip permits.
Operating Hours
- Standard window: 30 minutes before sunrise to 30 minutes after sunset.
- Night travel exception:
- Width ≤10′
- Legal dimensions otherwise
- Interstate highways only
- Proper lighting required
Key Dimensions for Heavy Haul Transport
- Standard Limits:
- Length: 60′ (including overhang)
- Width: 8’6″
- Height: 14′
- Weight: 80,000–117,000 lbs gross (Federal Bridge Formula applies)
- Single axle: 20,000 lbs
- Tandem axle: 36,000 lbs
- Tridem axle: 42,000–43,500 lbs (varies by spacing)
- Permitted Expansions:
- Length: Up to 110′
- Width: Up to 18′
- Height: Up to 17′
- Weight Limits:
- Single axle: 25,000 lbs
- Tandem axle: 55,000 lbs
- Tridem axle: 65,000 lbs
Escort Vehicle Requirements
- Interstate Highways:
- Width >14′: 1 escort (additional may be required)
- Rear overhang >25′: 1 escort
- 2-Lane Roads:
- Length >109′: 2 escorts
- Width >13’11”: 2 escorts
- Height Escorts: At Highway Patrol’s discretion
Safety & Visibility
- Signage: “Oversize Load” signs front and rear
- Flagging:
- All protruding loads
- Rear overhang >4′ (daytime)
- Lighting for Night Moves:
- Amber lights (front corners)
- Red lights (rear corners)
- Revolving/strobe amber light (visible both directions)
Special Considerations
- Divisible Loads: May exceed 80,000 lbs without a permit if axle weights comply
- Seasonal Restrictions: Possible during spring thaw (no fixed annual schedule)
- Superloads: Classified as exceeding routine permit limits