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Wisconsin Oversize/Overweight Permit (6-WI-a)

Information current as of 2020
In Wisconsin, a person (developer) may need an Oversize or Overweight Permit (Permit) from the Wisconsin Department of Transportation (WisDOT) in order to move a vehicle and load that exceeds the state’s size and weight restrictions on state roads.

Generally, a Permit is required if the developer’s vehicle and load exceeds:

  • 8 ½ feet in width;
  • 13 ½ feet in height;
  • 75 feet in length; or
  • 80,000 pounds in gross weight.
For complete size and weight restrictions, refer to Wis. Stat. §348.02 through 348.10 and Wis. Admin. Code Trans. § 276.

Oversize/Overweight Permit Process

6-WI-a.1 – Check WisDOT Weight Restriction Programs (Optional)

The developer may check WisDOT’s Weight Restrictions Programs Webpage to determine if there are any additional restrictions in effect prior to submitting a Permit application.

6-WI-a.2 – Oversize/Overweight Permit Application

The developer must complete and submit an Oversize/Overweight Permit Application (Application) to WisDOT. WisDOT has several different applications for different types of oversize and overweight loads. The type of load being transported determines which Application the developer should use. For example, if the load is a sealed container, the developer must submit a CS Application. The developer must determine which Application is needed. The Applications and load descriptions can be found on WisDOT’s Oversize/Overweight Application Forms Webpage.

The developer may submit the Application online, via mail, at the WisDOT Permit Office in Madison, or obtain the Permit through a Commercial Permit Service that conducts business with WisDOT. Wis. Admin. Code Trans § 254.03. WisDOT provides a List of Commercial Permit Services a developer may use to obtain a Permit. Some of these forms of submission may require an additional fee. The developer must also obtain insurance for the movement. The amount of insurance needed is determined by the specifications of the vehicle and load. Wis. Admin. Code Trans § 254.14.

The Application must include information relevant to the move, including:

  • The developer’s name and contact information;
  • The vehicle’s license plate and VIN numbers;
  • The vehicle’s axle weights and spacing;
  • The size and weight of the vehicle and load;
  • A description of the contents of the load;
  • The proposed move date(s); and
  • The proposed route(s).

Wis. Admin. Code Trans § 254.03.

The developer must also submit the appropriate fee, determined by Wis. Stat. §348.25(8), with the Application.

6-WI-a.3 to 6-WI-a.4 – Review Application Materials for Completeness

After receiving an Application, WisDOT reviews the Application materials for administrative and technical completeness. If the Application is incomplete, WisDOT notifies the developer of the deficiencies.

6-WI-a.5 to 6-WI-a.7 – Review Application for Approval

After determining the Application is complete, WisDOT reviews the Application to ensure the method of movement and route are appropriate. WisDOT has 30 days to either grant or deny the Application. Wis. Admin. Code Trans § 250.025. If WisDOT denies the Application, the developer should consider alternate routes or methods of transportation.

6-WI-a.8 – Oversize/Overweight Permit

If WisDOT approves the Application, WisDOT issues an Oversize or Overweight Permit to the developer. The Permit is valid for five (5) days after issuance. The Permit is subject to several general conditions, including those listed in Wis. Admin. Code Trans §254, and WisDOT Single Trip Permit General Conditions. WisDOT may revoke the Permit if the developer violates the conditions of the Permit. Wis. Admin. Code Trans §254.17.

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Contact Information

Edit Wisconsin Department of Transportation
OSOW Permit Section Supervisor (608) 261-2574