---
title: Alaska Oversize & Overweight Permits (OS/OW) | DOT&PF Superload | Alpine Truck Service
description: Expedited Alaska DOT&PF trucking permits for Dalton Highway, North Slope, Parks Hwy, and Anchorage routes. Complete winter weight & superload compliance. Call (918) 607-6547.
image: https://www.alpinetruckservice.com/alpine-third-party-charges.webp
---

# Alaska Oversize, Overweight & Superload Permitting Services

Comprehensive commercial trucking permits and heavy haul compliance across Alaska.

## Agency & Permitting Authority
- **Agency**: Alaska Department of Transportation and Public Facilities (DOT&PF)
- **Portal**: Alaska DOT&PF Commercial Vehicle Customer Portal
- **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**: 16' 0"
- **Legal Height**: 15' 0" | **Max Routine**: 17' 0"
- **Legal Length**: 53' Semi-Trailer / 75' Overall | **Max Routine**: 120' 0"
- **Legal Gross Weight**: 80,000 lbs | **Max Routine**: 150,000 lbs
- **Axle Limits**: Single: 20,000 lbs, Tandem: 38,000 lbs, Tridem: 42,000 lbs

## Permitting Scope & Services in Alaska
- **Routine Oversize (OS) Cab-Cards**: Single-trip authorizations for dimensions exceeding 8' 6" width or 15' 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 150,000, 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 150,000 lbs GVW or exceeding seasonal bridge ratings
- **Width Trigger**: Over 16' 0" wide
- **Height Trigger**: Over 17' 0" high
- **Length Trigger**: Over 120' 0" overall length
- **State & Partner Bridge Review**: Alaska Department of Transportation and Public Facilities (DOT&PF) 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 10' 6" wide on narrow rural routes; over 12' 0" wide on primary highways
- **Rear Escort**: Required over 14' 0" wide or rear overhang exceeding 10' 0"
- **Height Pole**: Required for loads exceeding 16' 6" in height (lead vehicle with calibrated pole)
- **Police Escort**: Required over 18' 0" wide or for complex Dalton Highway convoy movements

## Metro Curfews & Travel Restrictions
- **Curfew Zones**:
  - Anchorage Metro (Glenn Hwy, Seward Hwy): 7:00–9:00 AM & 4:00–6:00 PM M-F
  - Fairbanks Metro core during peak morning and afternoon commute hours
- **Travel Rules**: Continuous travel allowed for routine loads unless restricted by winter storm advisories or darkness protocols. Dalton Highway has dedicated radio check-in requirements.

## Key Freight Corridors
- Dalton Highway (AK-11 to Prudhoe Bay)
- Parks Highway (AK-3 Anchorage-Fairbanks)
- Glenn Highway (AK-1)
- Richardson Highway (AK-4)
- Sterling Highway (AK-1)

## Frequently Asked Questions
### What is Alaska's legal height limit?
Alaska permits a generous legal height of 15'0" on state highways without requiring an oversize permit.

### How are superloads permitted on the Dalton Highway to the North Slope?
Dalton Highway (AK-11) superloads require specialized DOT&PF clearance, mechanical safety inspection, winter chain compliance, and convoy coordination.

### What seasonal weight restrictions affect Alaska heavy haul?
Spring break-up causes seasonal axle weight reductions (often 50% to 75% of legal weight) across interior and southcentral Alaska roads.

### Can Alpine coordinate Alaska loads moving through Canada via the Alcan?
Yes. Alpine provides synchronized cross-border permitting across British Columbia, Yukon Territory, and Alaska DOT&PF.

## 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/alaska](https://www.alpinetruckservice.com/permits/alaska)