Implements of Husbandry

Ordinance #2019-3

Applications:

Specific-Instructions-for-Wisconsin-Department-of-Transportation-Permit-Form-MV2582

More Information of IOHs from Wisconsin DOT website

https://wisconsindot.gov/Pages/dmv/agri-eq-veh/ioh.aspx

For the roads allowed for travel by the Town of Scott

Implements of Husbandry Approved Route Map

IoH_map_Scott_2020

Determine if a permit is required

Wisconsin Act 377 increased the weight limits allowed without a permit for IoHs and weight and width limits for AgCMVs effective April 24, 2014. An IoH/Ag CMV permit may be required if your vehicle exceeds the length and/or weight listed below. There is no fee for this permit.

IoH length

  • Single vehicle
    • 60 feet
    • IoH/Ag CMV Permit may be required over 60 feet.
  • Two vehicle combination
    • 100 feet
    • IoH/Ag CMV Permit may be required over 100 feet
  • Three vehicle combination
    • No more than 100 feet with speed restriction of 25 mph or less OR 70 feet at a speed greater than 25 mph.
    • IoH/Ag CMV Permit may be required if exceeding 100 feet in length.
    • Towed units being drawn by a motor truck, truck tractor, or Ag CMV must be empty. “Empty” means less than 20 percent full.
    • Length limits also apply to IoH being operated or transported for delivery, service, repair by dealer or farmer within 75-mile radius of business or farm. Beyond these dimensions or the designated radius, you may be eligible for a standard Oversize/Overweight commercial (single or annual) permit.

Ag CMV length

  • Single vehicle
    • 45 feet
    • No-Fee permit may be required over 45 feet
  • Two vehicle combination – one towed unit driven by a power unit
    • 70 feet
    • No-Fee permit may be required over 70 feet
  • Three vehicle combination - two towed units drawn by a power unit.
    • No more than 100 feet with speed restriction of 25 mph or less or 70 feet at a speed greater than 25 mph.
    • No-Fee permit may be required if exceeding 100 feet in length.
    • Towed units being drawn by a motor truck, truck tractor, or agricultural commercial motor vehicle must be empty. “Empty” means less than 20 percent full. §348.08(1)(d)

IoH/AG CMV weight

  • New maximum IoH/Ag CMV weight limits table applies. This allows for a maximum single axle weight of 23,000 pounds and a gross vehicle weight of 92,000 pounds dependent on number of axles and axle spacing.
    • https://wisconsindot.gov/Pages/dmv/agri-eq-veh/wght-lmts.aspx for details.
  • IoH/Ag CMV Permit may be required if gross vehicle weight or axle weight is greater than the IoH weight table.
  • All operators must abide by seasonal or other special postings.
  • IoH/Ag CMV Maximum Weight Limits do not apply on Interstate highways. §348.15 (9)(c)2.(d)
  • Exemptions
    • Empty potato harvester is exempt from axle weight limit. Also exempt from Class B road postings.
    • Category B is:
      • Exempt from axle weight limits unless local road authority passes ordinance or resolution limiting self-propelled IoH axle weight.
      • Exempt from gross vehicle weight and axle weight limits when operating between fields and operated on the highway for a distance of 1/2 mile or less.
      • Exempt from Class B road postings.
    • IoH traveling for delivery, service, repair by dealer or farmer within 75-mile radius of business or farm is exempt from gross vehicle weight and axle weight limits. Also exempt from Class B road postings. If you are traveling beyond the 75 mile radius you may be eligible for a standard Oversize/Overweight commercial (single or annual) permit.

Vehicle measurements

To complete the form you will need:

  • Maximum gross motor vehicle weight of the vehicle or vehicle combination in operation mode.
  • Maximum axle weight of the vehicle or vehicle combination in operation mode.
  • Distance between each individual axle (to qualify as an individual axle – there must be more than 42 inches from the previous axle).
  • Axle gauge, which is measured from the center of the left tire (or center of a group of tires) to the center of the right tire (or center of a group of tires). Typically, a standard vehicle has an axle gauge of six feet. IoH axle gauges vary. Axle gauge has significant impact in how vehicle weight is distributed on bridges.