['Longer Combination Vehicles']
['Longer Combination Vehicles']
07/19/2024
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Combination: Truck tractor and 2 trailing units—LCV
LENGTH OF THE CARGO–CARRYING UNITS: 95 feet
MAXIMUM ALLOWABLE GROSS WEIGHT: 129,000 pounds
OPERATIONAL CONDITIONS:
WEIGHT: Weight limits are as follows:
Single axle: 20,000 pounds
Tandem axle: 34,000 pounds
Gross weight: 129,000 pounds
Vehicles must comply with the Federal Bridge Formula
Tire loading on vehicles requiring an overweight or oversize permit shall not exceed 500 pounds per inch of tire width for tires 11 inches wide and greater, and 450 pounds per inch of tire width for tires less than 11 inches wide as designated by the tire manufacturer on the side wall of the tire. Tire loading on vehicles not requiring an overweight or oversize permit shall not exceed 600 pounds per inch of tire width as designated by the tire manufacturer on the sidewall.
DRIVER: The driver must have a commercial driver’s license with the appropriate endorsement. Carriers must certify that their drivers have a safe driving record and have passed a road test administered by a qualified safety supervisor.
VEHICLE: While in transit, no trailer shall be positioned ahead of another trailer which carries an appreciably heavier load. An empty trailer shall not precede a loaded trailer. Vehicles shall be powered to operate on level terrain at speeds compatible with other traffic. They must be able to maintain a minimum speed of 20 miles per hour under normal operating conditions on any grade of 5 percent or less over which the combination is operated and be able to resume a speed of 20 miles per hour after stopping on any such grade, except in extreme weather conditions.
Oversize signs are required on vehicles in excess of 75 feet in length on two–lane highways.
A heavy–duty fifth wheel is required. All fifth wheels must be clean and lubricated with a light–duty grease prior to each trip. The fifth wheel must be located in a position which provides adequate stability. Pick–up plates must be of equal strength to the fifth wheel. The kingpin must be of a solid type and permanently fastened. Screw–out or folding–type kingpins are prohibited.
All hitch connections must be of a no–slack type, preferably a power–actuated ram. Air–actuated hitches which are isolated from the primary air transmission system are recommended.
The drawbar length should be the practical minimum consistent with the clearances required between trailers for turning and backing maneuvers.
Axles must be those designed for the width of the body.
All braking systems must comply with State and Federal requirements. In addition, fast air transmission and release valves must be provided on all semitrailer and converter–dolly axles. A brake force limiting valve, sometimes called a “slippery road” valve, may be provided on the steering axle. Anti–sail type mud flaps are recommended.
The use of single tires on any combination vehicle requiring an overweight or oversize permit shall not be allowed on single axles. A single axle is defined as one having more than 8 feet between it and the nearest axle or group of axles on the vehicle.
When traveling on a level, smooth paved surface, the trailing units must follow in the path of the towing vehicle without shifting or swerving more than 3 inches to either side when the towing vehicle is moving in a straight line. Each combination shall maintain a minimum distance of 500 feet from another commercial vehicle traveling in the same direction on the same highway. Loads shall be securely fastened to the transporter with material and devices of sufficient strength to prevent the load from becoming loose, detached, dangerously displaced, or in any manner a hazard to other highway users. The components of the load shall be reinforced or bound securely in advance of travel to prevent debris from being blown off the unit and endangering the safety of the traveling public. Any debris from the special permit vehicle deposited on the highway shall be removed by the permittee.
Bodily injury and property damage insurance is required before a special Transportation Permit will be issued.
In the event any claim arises against the State of Utah, Utah Department of Transportation, Utah Highway Patrol, or their employees from the operation granted under the permit, the permittee shall agree to indemnify and hold harmless each of them from such claim.
PERMIT: Permits must be purchased. The Utah DOT Motor Carrier Safety Division will, on submission of an LCV permit request, assign an investigator to perform an audit on the carrier, which must have an established safety program that is in compliance with the Federal Motor Carrier Safety Regulations (49 CFR 387–399), the Federal Hazardous Materials Regulations (49 CFR 171–178), and a “Satisfactory” safety rating. The request must show a travel plan for the operation of the vehicles. Permits are subject to Highway Patrol supervision and permitted vehicles may be subject to temporary delays or removed from the highways when necessary during hazardous road, weather, or traffic conditions. The permit will be cancelled without refund if violated. Expiration dates cannot be extended except for reasons beyond the control of the permittee, including adverse weather. Permits are void if defaced, modified, or obliterated. Lost or destroyed permits cannot be duplicated and are not transferable.
ACCESS: Routes approved by the Utah DOT plus local delivery destination travel on two–lane roads.
ROUTES: For combinations with a cargo–carrying length of 85 feet or less, all NN routes. Combinations with a cargo–carrying length over 85 feet are restricted to the following NN routes:
FROM | TO | |
---|---|---|
I–15 | Arizona | Idaho |
I–70 | Jct. I–15 | Colorado |
I–80 | Nevada | Wyoming |
I–84 | Idaho | Jct. I–80 |
I–215 | Entire length in the Salt Lake City area | |
UT–201 | I–80 Exit 102 Lake Point Jct. | 300 West Street Salt Lake City |
LEGAL CITATIONS:
Utah Code 27–12–154 and –155; Utah Administrative Code, Section R–909–1.
Combination: Truck tractor and 3 trailing units—LCV
LENGTH OF THE CARGO–CARRYING UNITS: 95 feet
MAXIMUM ALLOWABLE GROSS WEIGHT: 129,000 pounds
OPERATIONAL CONDITIONS: Same as the UT–TT2 combination.
ROUTES: Same as the UT–TT2 combination with a cargo–carrying length greater than 85 feet.
LEGAL CITATIONS: Same as the UT–TT2 combination.
Combination: Truck–trailer
LENGTH OF THE CARGO–CARRYING UNITS: 88 feet
OPERATIONAL CONDITIONS:
WEIGHT: This combination must operate in compliance with State laws and regulations. Because it is not an LCV, it is not subject to the ISTEA freeze as it applies to maximum weight.
DRIVER, VEHICLE, PERMIT, and ACCESS: Same as the UT–TT2 combination.
ROUTES: 1. Truck–trailer combinations hauling bulk gasoline or LP gas: cargo–carrying length less than or equal to 78 feet, all NN routes; cargo–carrying lengths over 78 feet up to and including 88 feet, same as UT–TT2 with cargo–carrying length over 85 feet.
2. All other truck–trailer combinations: cargo–carrying length less than or equal to 70 feet, all NN routes; cargo–carrying lengths over 70 feet up to and including 78 feet, same as UT–TT2 with cargo–carrying length over 85 feet.
LEGAL CITATIONS: Same as the UT–TT2 combination.
Combination: Truck–trailer–trailer
LENGTH OF THE CARGO–CARRYING UNITS: 88 feet
OPERATIONAL CONDITIONS: Same as the Utah truck–trailer combination.
ROUTES: Same as the UT–TT2
LEGAL CITATIONS: Same as the UT–TT2 combination.
Combination: Automobile transporter
LENGTH OF THE CARGO–CARRYING UNITS: 105 feet
OPERATIONAL CONDITIONS:
WEIGHT, DRIVER, PERMIT, and ACCESS: Same as the Utah truck–trailer combination.
VEHICLE: The cargo–carrying length of automobile transporters that carry vehicles on the power unit is the same as the overall length.
ROUTES: For automobile transporters with a cargo–carrying length of 92 feet or less, all NN routes. Automobile transporters with a cargo–carrying length over 92 feet up to and including 105 feet, same as UT–TT2 with cargo–carrying length over 85 feet.
LEGAL CITATIONS: Same as the UT–TT2 combination.
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['Longer Combination Vehicles']
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