Rhode Island Axle Weight Limits

Oversize.io Axle Weight Calculator

LEGAL LIMITATIONS

WEIGHT

MAXIMUM LEGAL WEIGHT ALLOWED

THE GROSS VEHICLE WEIGHT 80,000 pounds maximum.

The gross weight imposed on the highway by the wheels of any one (1) axle of a vehicle shall not exceed twenty-two thousand four hundred (22,400) pounds.

MAXIMUM AXLE WEIGHT CARRIED BY MULTIPLE AXLE VEHICLE. It shall be unlawful to transport or operate over or upon any public highway in this state any vehicle equipped with two (2) axles the gross weight of which including its load exceeds thirty-two thousand (32,000) pounds when equipped with rubber tires if the front and rear axles are less than six (6) feet apart, or thirty-six thousand (36,000) pounds if such axle spacing is less than twelve (12) feet apart, or any single vehicle equipped with three (3) or more axles the gross weight of which including its load exceeds forty thousand (40,000) pounds if the front and rear axles are less than sixteen (16) feet apart, or forty- four thousand (44,000) pounds if such axle spacing is less than twenty (20) feet apart, or any vehicle of the tractor semi-trailer class equipped with three (3) or more axles the gross weight of which including its load exceeds forty-six thousand (46,000) pounds if the front and rear axles of the combined unit are less than twenty-two (22) feet apart, or fifty thousand (50,000) pounds if such axle spacing is less than twenty-seven (27) feet apart provided, however, that the weight of a tag-along trailer secured to such vehicle by a pin and pintel hook shall not be considered in determining the above loads, so long as said trailer, when loaded, does not exceed its manufactureras weight limits, and as long as the vehicle towing said trailer and/or the trailer itself possesses the proper braking capacities for said trailers.

AXLE GROUP

MAXIMUM

SINGLE

22,400 pounds

TANDEM

32,000 pounds (if the front and rear axles less than 6 feet apart)

36,000 pounds (less than 12 feet apart)

TRIDEM

40,000 pounds (if the front and rear axles less than 16 feet apart)

44,000 pounds (less than 20 feet)

46,000 pounds (less than 22 feet)

50,000 pounds (less than 27 feet)

GROSS VEHICLE WEIGHT

80,000 pounds

MAXIMUM WEIGHT AND TANDEM AXLES. It shall be unlawful to operate over or upon any public highway in this state any vehicle

equipped with tandem axles, should the gross weight of said axles exceed forty-four thousand (44,000) pounds if such axle spacing does not exceed eight (8) feet.

With respect to all public highways, the overall gross weight on a group of two or more consecutive axles of a vehicle or combination of vehicles, shall be determined by the following bridge gross weight formula:

W=500 ((LN/(N-1))+12N+36)
where W = the overall gross weight on any group of two or more consecutive axles to the nearest 500 pounds;

L = the distance in feet between the extremes of any group of two or more consecutive axles; and

N = the number of axles in the group under consideration.

Such overall gross weight of any vehicle or combination of vehicles may not exceed 80,000 pounds except as specified in Sections 31-25-1, 31-25-2 and 31-25-21.

  • In any calculation using the above formula in which the multiple axle limit is less than 44,000 pounds, 44,000 pounds shall be considered the legal limit.

MAXIMUM PERMIT WEIGHT ALLOWED

The State Department of Transportation with respect to highways under their jurisdiction may in their discretion upon application in writing and good cause being shown therefor, issue a special permit in writing authorizing the applicant to operate or move a vehicle or combination of vehicles of a size or weight of vehicle or load exceeding 80,000 pounds or otherwise not in conformity with the provisions of chapters 1-27, inclusive, of this title upon any highway under the jurisdiction of the party granting such permit and for the maintenance of which said party is responsible. Provided, however, that neither the State Department of Transportation nor the local authorities may issue permits for divisible loads weighing in excess of 104,800 pounds gross vehicle weight for 5 axle vehicles and 76,650 pounds, gross vehicle weight, for 3 axle vehicles.

MAXIMUM WEIGHT DEVISIBLE LOAD PERMITS

  • Three or more axle vehicle – 76,650 pounds maximum
  • Three axle tractor - semi-trailer – 62,000 pounds maximum
  • Four-axle tractor –semi-trailer – 87,000 pounds maximum
  • Four or more axle tractor –semi-trailer – 104,800 pounds maximum

Source of information: http://sos.ri.gov/documents/archives/regdocs/released/pdf/DMV/DMV_1673_.pdf

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