---
title: Kansas Oversize & Overweight Permits (OS/OW) | KDOT Superload | Alpine Truck Service
description: Expedited Kansas KDOT oversize permits, Kansas City/Wichita curfews, Kansas Turnpike routing, and KHP escorts across I-70 and I-35. Call (918) 607-6547.
image: https://www.alpinetruckservice.com/alpine-third-party-charges.webp
---

# Kansas Oversize, Overweight & Superload Permitting Services

Comprehensive commercial trucking permits and heavy haul compliance across Kansas.

## Agency & Permitting Authority
- **Agency**: Kansas Department of Transportation (KDOT)
- **Portal**: KDOT KanRoad OS/OW 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**: 14' 0" | **Max Routine**: 16' 0"
- **Legal Length**: 53' Semi-Trailer / 65' Overall | **Max Routine**: 126' 0"
- **Legal Gross Weight**: 80,000 lbs (up to 85,500 on non-interstate 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 Kansas
- **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 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 KDOT Bridge Weight Formula
- **Width Trigger**: Over 16' 0" wide
- **Height Trigger**: Over 16' 0" high (Utility pre-notification required over 16')
- **Length Trigger**: Over 126' 0" overall length
- **State & Partner Bridge Review**: Kansas Department of Transportation (KDOT) 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 or length exceeding 100' 0"
- **Height Pole**: Required for loads exceeding 17' 0" in height (lead vehicle with calibrated pole; utility letters required over 16')
- **Police Escort**: Kansas Highway Patrol (KHP) escort required over 18' 0" wide, 18' 0" high, or over 150,000 lbs

## Metro Curfews & Travel Restrictions
- **Curfew Zones**:
  - Kansas City Metro (I-35, I-70, I-435, I-635, US-69): 7:00–9:00 AM & 4:30–6:00 PM M-F
  - Wichita Metro (I-35, I-135, US-54 Kellogg Ave): 7:00–9:00 AM & 4:30–6:00 PM M-F
- **Travel Rules**: Daylight only (1/2 hour before sunrise to 1/2 hour after sunset), 7 days a week for routine oversize loads up to 14' wide. Night travel permitted on Interstate highways for loads up to 10' wide with proper lighting.

## Key Freight Corridors
- I-70 (Cross-Country Logistics Arterial)
- I-35 / Kansas Turnpike
- I-135 (Wichita to Salina)
- US-54 (Southwest Energy Corridor)
- US-81
- US-400

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

### What are Kansas pilot car escort requirements?
Kansas 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 a rear escort.

### Are oversize loads allowed on the Kansas Turnpike?
Yes, loads up to 12' wide and legal height are permitted on the Kansas Turnpike (I-35/I-70) with proper toll credentials.

### What makes a load a superload in Kansas?
In Kansas, shipments exceeding 150,000 lbs gross weight, 16' wide, 16' high, or 126' long are superloads, requiring KDOT structural bridge analysis and KHP 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/kansas](https://www.alpinetruckservice.com/permits/kansas)