Updated: Sep 2
Permits valid for five days.
Rhode Island permitting system: https://www.ri.gov/DOT/osow/users/sign_in
Contact phone number: 1-401-563-4582
Travel permitted one-half hour before sunrise to one-half hour after sunset. No weekend travel permitted.
No travel on major holidays and on VJ Day (2nd Monday in August). Movement may be restricted after 12:00 noon the day before a holiday. Check with the Sammons Permit Office.
Height: 13' 6"
Length: Interstate and designated highways - 53' semitrailer (kingpin to centerline of rear axle group must not exceed 41'), other roads 48' semitrailer.
Overhang: 3' front, 6' rear
Weight: 80,000 Gross Single – 22,400 Tandem – 36,000 Tridem – 42,000 with axles spacings less than 4'6", 42,750 with 4'6"
ROUTINE PERMIT LIMITS:
*Determined by routes and dimensions
Weight: determined by spacings, usually 22,500 per axle is permitted. 5 Axles 6 Axles or 7 Axles – depends on spacings, weight, and routing Over 200,000 pounds, an outside engineering firm must survey the routes.
Width: Over 12' – 1 escort, over 14'6" – 2 escorts
Height: Over 14' – 1 escort
Length: Over 80' – 1 escort, over 90' – 2 escorts
Overhang: Over 15' – 1 escort
Note: Some metropolitan areas may require police escorts
Vehicles hauling poles, pipes, and other material of a structural nature that cannot be separated or readily dismembered do not need a special hauling permit unless the overall length exceeds
80' SIGNS & FLAGS:
Warning signs are required for all oversize movements. “Oversize Load” signs are to be displayed on the front of the vehicle and on the end of the load for all loads exceeding legal width, length, or rear overhang. Wide loads require at least two flags and up to six flags mounted at the widest extremities. Overlength vehicles/loads require one flag if the load is less than 2' wide, and two flags if the load is greater than 2' wide. Less than 2' of overhang requires one flag; greater than 2' of overhang, two flags required, one on each corner.