# vehicle weights

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Vehicle Weights. 1. 2 2. 3. 4. 5. a. Axle 1- A single axle. G. S. 20-118 allows 20,000 pounds on a single axle. 1. 2 2. 3. 4. 5. 20,000 lbs. Axle 2-3 and 4-5 - Axle two and three is a Tandem Axle set. A Tandem Axle, is - PowerPoint PPT Presentation

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• Vehicle Weights

• a12234 5Axle 1- A single axle. G. S. 20-118 allows 20,000 pounds on a single axle.

• a12234 520,000 lbsAxle 2-3 and 4-5 - Axle two and three is a Tandem Axle set. A Tandem Axle, is two axles at least 40 inches apart and with-in 96 inches. G. S. 20-118 allows 38,000 pounds on the tandem.

• a12234 520,000 lbs38,000 lbs38,000 lbs1 ------------------------------- 32 ------------------------------------------------- 51 -------------------------------------------------------------------------------- 5The next lines indicate axle groupings. The weight distributed to the roadway is determined by the distance between axles and the number of axles touching the roadway. The measurement between axles is from thecenter to center of the hub. Those measurements that are less than 6 inches, 21 ft 4 inches is rounded down to 21feet. If one measures 21 ft 6 1/16 inch, then 22 feet would be used to determine allowable weight. The Axle groupings represented here are axle 1 to axle 3, axle 2 to axle 5, and axle 1 to axle 5.

• a12234 51 ------------------------------- 32 ------------------------------------------------- 51 -------------------------------------------------------------------------------- 5This axle group measures 18ft 5 inches. From there we look at the General Statute20-118 to find the amount of weight three axles can distribute to the roadway. DistanceMaximum Weight in Pounds for any Group of Two Between or More Consecutive Axles Axles*2 Axles 3 Axles 4 Axles 5 Axles 6 Axles 7 Axles 18 49500 54000 59000

18 ft 5 in.

• a12234 51 ---------49,500 lbs--------- 32 ------------------------------------------------- 51 -------------------------------------------------------------------------------- 5Axles 2 to 5 are categorized as another axle grouping. The distance for this axlegroup is measure from the center of axle 2 to the center of axle 5. For this example,the distance between axle 2 and 5 is 40 feet 6 inches. The bridge chart in 20-118 allows 69,500 pounds.

Distance Maximum Weight in Pounds for any Group Between or More Consecutive Axles Axles*2 Axles 3 Axles 4 Axles 5 Axles 6 Axles 7 Axles41 69500 73500 78500 40ft 61/2 in

• a12234 51 ---------49,500 lbs--------- 32 --------------69,500 lbs---------------------- 51 -------------------------------------------------------------------------------- 5Now the weight needs to be established for axles 1 through 5, known as the extreme bridge. The measurement from the center of axle one to the center of axle 5 is 52 feet. Look at GS-20-118 and the maximum weight for five axles, fifty two feet in length is 80,000 pounds.

Distance Maximum Weight in Pounds for any Group Between or More Consecutive Axles Axles*2 Axles 3 Axles 4 Axles 5 Axles 6 Axles 7 Axles5276500 80000

In addition to the weight chart, 20-118 also establishes exceptions, the reasons trucks can weigh more than the established weight published in the chart. 40ft 61/2 in18 ft41 ft

• Farm Exemptions22000420004200090000The above listed weights apply to a vehicle: a. Is hauling agricultural crops from the farm where the crop is grown to any market with-in 150 miles that farm. b. The vehicle is not operated on an Interstate Highway or exceed any Posted Bridge Weight limit. c. Does not exceed the weights listed above. d. And is registered for the maximum weight for the vehicle configuration.