['Longer Combination Vehicles']
['Longer Combination Vehicles']
07/19/2024
...
SEARCH
Combination: Truck tractor and 2 trailing units—LCV
LENGTH OF CARGO–CARRYING UNITS: 100 feet
MAXIMUM ALLOWABLE GROSS WEIGHT: 129,000 pounds
OPERATIONAL CONDITIONS:
WEIGHT: For all combinations, the maximum gross weight on two or more consecutive axles is limited by the Federal Bridge Formula but cannot exceed 129,000 pounds. The weight on single axles or tandem axles spaced 40 inches or less apart may not exceed 20,000 pounds. Tandem axles spaced more than 40 inches but 96 inches or less may not exceed 34,000 pounds. Two consecutive sets of tandem axles may carry a gross load of 34,000 pounds each, provided the overall distance between the first and last axles of the tandems is 36 feet or more. The weight on the steering axle may not exceed 600 pounds per inch of tire width.
For combinations with a cargo–carrying length greater than 81.5 feet the following additional regulations also apply. The weight on all axles (other than the steering axle) may not exceed 500 pounds per inch of tire width Lift axles and belly axles are not considered load–carrying axles and will not count when determining allowable vehicle weight.
DRIVER: The driver must have a commercial driver’s license with the appropriate endorsement.
VEHICLE: For all combinations, a semitrailer or trailer may neither be longer than nor weigh 3,000 pounds more than the trailer located immediately in front of it. Towbars longer than 19 feet must be flagged during daylight hours and lighted at night.
For combinations with a cargo–carrying length of 81.5 feet or less, neither trailer may exceed 45 feet, including load overhang. Vehicles may be 12 feet wide when hauling baled feed during daylight hours.
For combinations with a cargo–carrying length over 81.5 feet long, neither trailer may exceed 48 feet, including load overhang. Loading the rear of the trailer heavier than the front is not allowed. All axles except the steering axle require dual tires. Axles spaced 8 feet or less apart must weigh within 500 pounds of each other. The trailer hitch offset may not exceed 6 feet. The maximum effective rear trailer overhang may not exceed 35 percent of the trailer’s wheelbase. The power unit must have sufficient power to maintain 40 miles per hour. A “LONG LOAD” sign measuring 18 inches high by 7 feet long with black on yellow lettering 10 inches high is required on the rear. Offtracking is limited to 8.75 feet for a turning radius of 161 feet.
Offtracking Formula =
61–[1612- L12 - L22 + L32 - L42 - L52 + L62 - L72 - L82] 1/2.
NOTE: L1 through L8 are measurements between points of articulation or vehicle pivot points. Squared dimensions to stinger steer points of articulation are negative. For two trailing unit combinations where at least one trailer is 45 feet long or longer, all the dimensions used to calculate offtracking must be written in the “Permit Restriction” area of the permit along with the offtracking value derived from the calculation.
PERMIT: For combinations with a cargo–carrying length of 81.5 feet or less, a single–trip permit is required for movement on the Interstate System if the gross vehicle weight exceeds 80,000 pounds. An annual or single–trip permit is required for hauling baled feed over 102 inches wide.
For combinations with a cargo–carrying length greater than 81.5 feet, a single–trip permit is required for all movements. Operations must be discontinued when roads are slippery due to moisture, visibility must be good, and wind conditions must not cause trailer whip or sway.
For all combinations, a fee is charged for any permit.
ACCESS: For combinations with a cargo–carrying length of 81.5 feet or less, access is Statewide off the NN unless restricted by the South Dakota DOT.
For combinations with a cargo–carrying length greater than 81.5 feet, access to operating routes must be approved by the South Dakota DOT.
ROUTES: Combinations with a cargo–carrying length of 81.5 feet or less may use all NN routes. Combinations with a cargo–carrying length over 81.5 feet, are restricted to the Interstate System and:
From | To | |
---|---|---|
US 14 | W. Jct US 14 Bypass and US 14 | So. Jct. US 14 and US 281 Brookings |
Bypass US 14 | I–29 Exit 133 Brookings | W. Jct US 14 Bypass and US 14 Brookings |
US 85 | I–90 Exit 10 Spearfish | North Dakota |
US 281 | I–90 Exit 310 | So. Jct. US 14 and US 281 |
US 281 | 8th Ave. Aberdeen | North Dakota |
SD 50 | Burleigh Street Yankton | I–29 Exit 26 |
LEGAL CITATIONS: SDCL 32–22–8.1, –38, –39, –41, –42, and –52; and Administrative Rules 70:03:01:37, :47, :48, and :60 through :70.
Combination: Truck tractor and 3 trailing units—LCV
LENGTH OF CARGO–CARRYING UNITS: 100 feet
MAXIMUM ALLOWABLE GROSS WEIGHT: 129,000 pounds
OPERATIONAL CONDITIONS:
WEIGHT, DRIVER, PERMIT, and ACCESS: Same as the SD–TT2 combination.
VEHICLE: Same as the SD–TT2 combination, except trailer lengths are limited to 28.5 feet, including load overhang, and the overall length cannot exceed 110 feet, including load overhang.
ROUTES: Same as the SD–TT2 combination with a cargo–carrying length over 81.5 feet.
LEGAL CITATIONS: SDCL 32–22–14.14, –38, –39, –42, and –52; and Administrative Rules 70:03:01:60 through :70.
Combination: Truck–Trailer
LENGTH OF CARGO–CARRYING UNITS: 73 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, and PERMIT: Same as the SD–TT2 combination.
VEHICLE: Same as the SD–TT2 combination except that in addition, the overall length including load overhang is limited to 80 feet. Trailer length is not limited.
ACCESS: Same as the access provisions for the SD–TT2 combination with a cargo–carrying length of 81.5 feet or less.
ROUTES: Same as the route provisions for the SD–TT2 combination with a cargo– carrying length of 81.5 feet or less.
LEGAL CITATIONS: SDCL 32–22–8.1, –38, –39, –41, –42, and –52; and Administrative Rules 70:03:01:37, :47, and :48.
Combination: Truck–Trailer
LENGTH OF CARGO–CARRYING UNITS: 78 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, and PERMIT: Same as the SD–TT2 combination.
VEHICLE: Same as the SD–TT2 combination with a cargo–carrying length over 81.5 feet, except that in addition, the overall length is limited to 85 feet.
ACCESS: Same as the access provisions for the SD–TT2 combination with a cargo–carrying length greater than 81.5 feet.
ROUTES: Same as the route provisions for the SD–TT2 combination with a cargo–carrying length greater than 81.5 feet.
LEGAL CITATIONS: SDCL 32–22–38, –39, –42, and –52; and Administrative Rules 70:03:01:60 through :70.
READ MORESHOW LESS
['Longer Combination Vehicles']
['Longer Combination Vehicles']
Load More
J. J. Keller is the trusted source for DOT / Transportation, OSHA / Workplace Safety, Human Resources, Construction Safety and Hazmat / Hazardous Materials regulation compliance products and services. J. J. Keller helps you increase safety awareness, reduce risk, follow best practices, improve safety training, and stay current with changing regulations.
Copyright 2024 J. J. Keller & Associate, Inc. For re-use options please contact copyright@jjkeller.com or call 800-558-5011.