• General Information:

    Waukesha County Department of Public Works issues single trip oversize load permits for travel on County Trunk Highways (CTH) within Waukesha County.  A completed application form may be submitted to the Department by fax or email.

    The Department does not issue Annual Oversize Load Permits.  For Annual Oversize Load Permits, please contact the Wisconsin Department of Transportation at (608) 266-7320.

    Waukesha County also requires that Category B and all other Implements of Husbandry (IOH) and Agricultural Vehicles (Ag - CMVs) with axle weights exceeding 23,000 pounds or gross weights exceeding 92,000 pounds should, as stated below, obtain permits to operate on Waukesha County Highways from the Waukesha County Department of Public Works.

  • **Please submit all application forms and supporting documents to Kevin Yanny at kyanny@waukeshacounty.gov.

    To submit permits forms electronically, please follow the instructions below:
         - Click on application link below.
         - Save application to your computer or device.
         - Fill out form with accurate information.
         - Save filled form.
         - Email saved form as attachment to the email listed above.

  • OVERSIZE LOAD APPLICATION
    OVERSIZE LOAD APPLICATION - CLICK HERE

      Application Fee Permit Fee
     Oversize Load Application:         $0       $0

    **The Department of Public Works does not charge a fee for Oversize Load Permits.

    IMPLEMENTS OF HUSBANDRY/AGRICULTURAL COMMERCIAL VEHICLES APPLICATION
    IMPLEMENTS OF HUSBANDRY APPLICATION - CLICK HERE

    AGRICULTURAL COMMERCIAL VEHICLES APPLICATION - CLICK HERE
      Application Fee Permit Fee
     Implements of Husbandry Application           $0       $0
     Agricultural Commercial Vehicles Application           $0       $0
    Permit Requirements:
    • Height:  There is no limit on height for IOH, but the operator remains responsible for ensuring clearance of all bridges and utility lines that are constructed to the proper height.
    • Length (IOH):  Permits are required for...
      • Single vehicles can be over 60 feet.
      • Two-vehicle combinations over 100 feet.
      • Three-vehicle combinations over 100 feet if operated below 25 mph or over 70 feet at a speed of greater than 25 mph.
    • Length (Ag-CMV):  Permits are required for...
      • Single vehicles over 45 feet.
      • Two-vehicle combinations over 70 feet.
      • Three-vehicle combinations over 100 feet if operated at a speed below 25 mph or over 70 feet at a speed greater than 25 mph.
    • Weight:  Permits are required for...
      • Axle weighs 23,000 pounds and the GVW over 92,000 pounds.
        • Tillage, planting, and cultivation equipment are exempt from the per axle limitation on County roads.  Due to unique makeup of potato harvesters, they are also exempt from the new axle weight requirement, but not the GVW.
        • Per axle and GVW limits don't apply for "incidental movements" between farm to field and field to field that are less than 0.5 miles, and therefore, no permit is required.  This also applies to IOH being transported to and/or from an implement dealer for purposes of delivery, repair or servicing within a 75-mile radius.
    • Width:  Additional lighting and marking features are included for IOH that exceed 15 feet.  There is no requirement for permitting based on a vehicle's width.


    While operating on a highway, the following requirements apply.  IOH that exceed 15 feet or operate over the center line of the road when traveling will be required to add some lights and reflective material, if not already installed as original equipment.

    • Two flashing amber lights visible from the front and back placed 16 inches of the lateral extremities.
    • On the back, red retro-reflective tape placed within 25 inches of the lateral extremities.
    • On the front, two strips of yellow retro-reflective tape placed within 16 inches of the lateral extremities.
    • Two red tail lamps (hard-wiring is not required).
    • A standard slow moving vehicle (SMV) sign.

    During daylight hours, lighting requirements for IOH that exceed 15 feet or that operate over the center line of the road when traveling are not applicable if:

    • The wide IOH is accompanied by an escort vehicle with hazard lights activated, and
    • Two orange or red flags are attached to the rear of the IOH at the lateral extremities.


    An IOH in excess of 22 feet, in addition to any lighting and/or marking required must also be escorted by at least one vehicle with hazard lights activated.  On two-lane roads the escort is the lead vehicle.  On roads with two or more lanes with traffic going in the same direction, the escort vehicle will follow the IOH.

    No escort is required for "incidental movements" from farm to field or field to field under 0.5 miles.  The lighting, marking, and escort vehicle requirements noted above do apply if/when an IOH being operated or transported to and/or from an implement dealer for purposes of delivery, repair or servicing is within a 75-mile radius.