---
title: Wyoming Oversize & Overweight Permits (OS/OW) | WYDOT Superload | Alpine Truck Service
description: Expedited Wyoming WYDOT oversize permits, I-80 Elk Mountain wind routing, Powder River mining freight, and WHP escorts across I-80 and I-25. Call (918) 607-6547.
image: https://www.alpinetruckservice.com/alpine-third-party-charges.webp
---

# Wyoming Oversize, Overweight & Superload Permitting Services

Comprehensive commercial trucking permits and heavy haul compliance across Wyoming.

## Agency & Permitting Authority
- **Agency**: Wyoming Department of Transportation (WYDOT) / WHP
- **Portal**: WYDOT Commercial Vehicle Permitting System
- **Regulatory Advisory**: State DOT regulations and permit processing queues are determined by individual state transportation authorities and vary by agency workload. Carriers should verify active route advisories and state requirements prior to movement.

## Legal vs. Routine Permitted Dimensions
- **Legal Width**: 8' 6" | **Max Routine**: 18' 0"
- **Legal Height**: 14' 0" | **Max Routine**: 17' 0"
- **Legal Length**: 60' Semi-Trailer / 85' Overall (No overall length limit on Interstate if trailer <= 60') | **Max Routine**: 130' 0"
- **Legal Gross Weight**: 80,000 lbs (up to 117,000 lbs on state routes with standard Bridge Formula B axle counts) | **Max Routine**: 160,000 lbs
- **Axle Limits**: Single: 20,000 lbs, Tandem: 36,000 lbs, Tridem: 42,000 lbs

## Permitting Scope & Services in Wyoming
- **Routine Oversize (OS) Cab-Cards**: Single-trip authorizations for dimensions exceeding 8' 6" width or 14' 0" height.
- **Overweight (OW) Axle Permits**: Overload cab-cards for heavy machinery and configurations exceeding 80,000 lbs GVW.
- **Multi-Axle Superload Permits**: Specialized filings exceeding Over 160,000, including State DOT and certified partner bridge reviews, route surveys, and police escorts.
- **Annual & Blanket Fleet Permits**: Continuous-operation annual highway authorizations for construction fleets.
- **Temporary Trip & Fuel Permits**: 72-hour IRP vehicle registration and IFTA fuel tax credentials.
- **County, City & Toll Road Clearances**: Municipal authorizations and turnpike clearances.

## Superload Permitting & State Review Protocol
- **Weight Trigger**: Over 160,000 lbs GVW or exceeding Wyoming Bridge Formula weight ratings
- **Width Trigger**: Over 18' 0" wide
- **Height Trigger**: Over 17' 0" high
- **Length Trigger**: Over 130' 0" overall length
- **State & Partner Bridge Review**: Wyoming Department of Transportation (WYDOT) / WHP electronic systems and certified structural engineering partners evaluate axle load distribution across bridge structures upon submission.
- **Route Surveys & Clearances**: Required for extreme heights/widths to verify overhead physical clearances.
- **Utility & Escorts**: Coordinated wire lifts with power utilities and State Police / Highway Patrol escorts.

## Pilot Cars & Escort Vehicle Requirements
- **Front Escort**: Required over 12' 0" wide on two-lane highways; over 14' 0" wide on multi-lane highways
- **Rear Escort**: Required over 14' 0" wide on multi-lane highways; length exceeding 110' 0"; rear overhang > 15' 0"
- **Height Pole**: Required for loads exceeding 15' 6" in height (lead vehicle with calibrated pole)
- **Police Escort**: Wyoming Highway Patrol (WHP) escort required over 18' 0" wide, 18' 0" high, or gross weight over 160,000 lbs

## Metro Curfews & Travel Restrictions
- **Curfew Zones**:
  - Cheyenne Urban Area (I-80, I-25): 7:00–8:30 AM & 4:30–6:00 PM M-F (loads >12' wide)
  - Casper Metro (I-25, US-20/26) during peak commuter hours
- **Travel Rules**: Daylight only (1/2 hour before sunrise to 1/2 hour after sunset), 7 days a week for routine loads up to 15' wide and 17' high. Overweight-only continuous travel allowed with lighting.

## Key Freight Corridors
- I-80 (Cross-Country Transcontinental Arterial)
- I-25 (Front Range Spine / Denver to Casper)
- I-90 (Northeast Energy Corridor)
- US-30
- US-26
- US-287
- US-20

## Frequently Asked Questions
### What is Wyoming's legal height limit?
Wyoming allows a legal height of 14'0" on state highways and interstates without requiring an oversize permit.

### How do Wyoming high wind closures on I-80 affect oversize loads?
WYDOT frequently issues mandatory high-wind closure warnings (gusts exceeding 50+ mph) along I-80 between Laramie and Rawlins (Arlington/Elk Mountain). Oversize and light loads must park at designated staging lots until bans are lifted.

### What are Wyoming pilot car escort triggers?
Wyoming requires 1 escort for loads over 12' wide on 2-lane roads and over 14' wide on multi-lane highways. Loads over 110' long require a rear escort. Height over 15'6" requires a height pole.

### How long does WYDOT take to issue a Wyoming oversize permit?
Routine single-trip permits are typically processed within 2–4 business hours through WYDOT's electronic portal. Superloads take 3–5 business days.

## Contact & Direct Dispatch
- **Direct Phone**: (918) 607-6547 (CALL: [918-607-6547](tel:9186076547))
- **Email**: [permits@alpinetruck.com](mailto:permits@alpinetruck.com)
- **Online Intake**: [alpinetruckservice.com/permits/wyoming](https://www.alpinetruckservice.com/permits/wyoming)