---
title: Wisconsin Oversize & Overweight Permits (OS/OW) | WisDOT Superload | Alpine Truck Service
description: Expedited Wisconsin WisDOT oversize permits, Milwaukee/Madison curfews, Port of Green Bay routing, and State Patrol escorts across I-94 and I-90. Call (918) 607-6547.
image: https://www.alpinetruckservice.com/alpine-third-party-charges.webp
---

# Wisconsin Oversize, Overweight & Superload Permitting Services

Comprehensive commercial trucking permits and heavy haul compliance across Wisconsin.

## Agency & Permitting Authority
- **Agency**: Wisconsin Department of Transportation (WisDOT)
- **Portal**: WisDOT Motor Carrier 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**: 16' 0"
- **Legal Height**: 13' 6" | **Max Routine**: 15' 6"
- **Legal Length**: 53' Semi-Trailer / 70' Overall | **Max Routine**: 120' 0"
- **Legal Gross Weight**: 80,000 lbs (up to 98,000 lbs on 6-axle configurations on state routes) | **Max Routine**: 150,000 lbs
- **Axle Limits**: Single: 20,000 lbs, Tandem: 34,000 lbs, Tridem: 42,000 lbs

## Permitting Scope & Services in Wisconsin
- **Routine Oversize (OS) Cab-Cards**: Single-trip authorizations for dimensions exceeding 8' 6" width or 13' 6" 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 standard WisDOT bridge capacity ratings
- **Width Trigger**: Over 16' 0" wide
- **Height Trigger**: Over 16' 0" high
- **Length Trigger**: Over 120' 0" overall length
- **State & Partner Bridge Review**: Wisconsin Department of Transportation (WisDOT) 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 roads; over 14' 0" wide on multi-lane highways
- **Rear Escort**: Required over 14' 0" wide on multi-lane highways; length exceeding 100' 0"; rear overhang > 10' 0"
- **Height Pole**: Required for loads exceeding 15' 0" in height (lead vehicle with calibrated pole)
- **Police Escort**: Wisconsin State Patrol escort required over 16' 0" wide, 16' 0" high, or gross weight over 150,000 lbs

## Metro Curfews & Travel Restrictions
- **Curfew Zones**:
  - Milwaukee County / Metro (I-94, I-43, I-894, I-794, US-45): 6:30–9:00 AM & 4:00–6:30 PM M-F (loads >12' wide)
  - Madison / Dane County (I-39/90/94, US-12, US-151): 7:00–9:00 AM & 4:00–6:00 PM M-F
- **Travel Rules**: Daylight only (1/2 hour before sunrise to 1/2 hour after sunset) Monday through Friday. Saturday travel allowed until 12:00 noon for loads under 12' wide. No Sunday travel for oversize loads. Overweight-only continuous travel allowed with lighting.

## Key Freight Corridors
- I-94 (Chicago to Milwaukee / Twin Cities Spine)
- I-90 (Illinois to La Crosse)
- I-43 (Milwaukee to Green Bay)
- I-39 (Central Wisconsin Spine)
- US-41 (Fox River Valley Industrial)
- US-51
- US-10

## Frequently Asked Questions
### How long does WisDOT take to issue a Wisconsin oversize permit?
Routine single-trip permits are typically processed in 2–4 business hours. Superloads requiring bridge structural reviews take 3–5 business days. Alpine expedites filings immediately.

### What are Milwaukee and Madison rush hour curfews for wide loads?
Oversize vehicles cannot travel in Milwaukee County between 6:30–9:00 AM and 4:00–6:30 PM, or in Madison between 7:00–9:00 AM and 4:00–6:00 PM on weekdays.

### What are Wisconsin pilot car escort triggers?
Wisconsin requires 1 escort for loads over 12' wide on 2-lane roads and over 14' wide on multi-lane highways. Loads over 100' long require an escort. Height over 15' requires a height pole.

### What is Wisconsin's superload threshold?
Shipments exceeding 150,000 lbs gross weight, 16' wide, 16' high, or 120' long are superloads, requiring WisDOT bridge engineering analysis and State Patrol escorts.

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