The rules and regulations as described herein are designed to permit, under special conditions, and to ensure the safe movement of vehicles and/or equipment which exceed any one or more of the following legal limits for dimension and/or weight:
80,000 pounds gross weight of vehicle/s and cargo on 5 or more axles.
Must meet the federal bridge formula for 80,000 pounds.
Secondary highways are restricted to 40 MPH, and may be posted for a lesser weight.
20,000 pounds on SINGLE AXLE
34,000 pounds on TANDEM AXLE
12,000 pounds on FRONT AXLE, except vehicles of special design.
GROSS VEHICLE WEIGHT
STEERING AXLE. The Director may issue permits for a maximum single front/steering axle weight not to exceed 18,000 pounds and a maximum tandem front/steering axle weight not to exceed 32,000 pounds for vehicles of special design, equipment, or construction, engaged in occasional or specialized heavy hauling such as, but not limited to, hauling of heavy machinery, commodities which require specialized equipment, oil or gas field equipment, or similar equipment for a period of not more than 12 consecutive months, upon written application containing satisfactory proof that such vehicle(s) are used solely for the above purposes.
SINGLE AXLE LOAD PERMITTED: No permit shall be issued for the movement of a vehicle, except off-the-road vehicle and/or equipment, if the gross weight imposed upon the highway by the wheels of any one single axle exceeds 20,000 pounds.
TANDEM AXLE LOAD PERMITTED: The total gross load that shall be permitted upon the highways on a tandem configuration shall not exceed 40,000 pounds, and no one axle of any such group shall exceed 20,000 pounds.
TRIDEM AXLE LOAD PERMITTED: The total gross weight permitted in a tridem configuration shall not exceed 60,000 pounds, and no one axle of any such group shall exceed 20,000 pounds.
QUADRUM AXLE LOAD PERMITTED: The total gross weight permitted on the highways by a quadrum configuration shall not exceed 68,000 pounds, an any one axle of any such group shall exceed 17,000 pounds.
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