Utah Oversize & Heavy Haul 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.
Permit Basics
Single-trip permits valid for 5 days (required before entering Utah).
Available at state line ports of entry with advance phone approval.
Operating window: ½ hour before sunrise to ½ hour after sunset (including weekends).
24/7 Travel: Allowed for qualifying loads (≤10′ wide, ≤92′ long, with proper lighting).
Restricted Travel Areas
- Urban curfews (6–9 AM and 3:30–6 PM weekdays) apply to:
- Loads over 10′ wide or 105′ long
- Affects Wasatch Front counties (Box Elder to Utah County)
- No holiday travel on Pioneer Day (July 24) or major holiday weekends
Legal Dimensions for Heavy Equipment
- Length: 53 feet (semi-trailer standard)
- Overhang:
- 3 feet front
- 6 feet rear
- Width: 8 feet 6 inches
- Height: 14 feet
- Weight Limits:
- Gross: 80,000 pounds
- Tandem Axle: 34,000 pounds
- Tridem Axle: 42,500 pounds
Routine Permit Limits
- Width: Up to 17 feet (bulldozer blades >16′ must be detached)
- Height: Up to 17 feet 6 inches (requires utility clearance proof)
- Weight:
- 5 Axles: 100,000 pounds
- 7 Axles: 148,500 pounds
Escort Requirements
- Interstates/Freeways:
- Width >14′: 1 escort
- Height >16′: 2 escorts
- Other Highways:
- Width >12′: 1 escort
- Length >105′: 1 escort
- Special requirements for canyon roads and superloads
Safety & Compliance Essentials
- Signage: “Oversize Load” signs required for:
- Width >10′
- Height >14′
- Length >92′
- Flagging: Required at all extremities and overhangs
- Lighting: Special requirements for night moves and overhangs >20′
Key Tips for Heavy Haul Logistics
- Verify all urban area restrictions before routing
- Allow extra time for height clearance approvals
- Confirm proper lighting for night/24/7 moves
- Check holiday schedules in advance
- Maintain detailed documentation
Best Practices for Oversize Transport
- Use Utah’s port of entry services when possible
- Plan alternative routes for urban areas
- Train drivers on Utah-specific requirements
- Double-check all safety equipment