New Hampshire 5 Axle Semi Truck Size and Weight Limits



New Hampshire: 5 Axle Semi Truck

semi truck tractor trailer

Gross Weight Limits

Ruleset Jurisdiction Permit Required? Estimated Gross *
US Federal Interstate and Defense Highways No 80,000 lbs
NH Over Weight Registration Interstates and Designated State Highways Yes 84,000 lbs

* This is an estimate as it does not include bridge and tire compliance.


Axle Weight Limits

Ruleset: US Federal

Jurisdiction: Interstate and Defense Highways

Axle Group Tire Type Axle Spread Axle Weight Limit
Steer AxleSingle 20,000 lbs
Tandem DrivesDuals40 - 96 in 34,000 lbs
Trailer TandemDuals40 - 96 in 34,000 lbs
Trailer TandemDuals96 - 108 in 38,000 lbs
Trailer TandemDuals108 - 120 in 39,000 lbs
Trailer TandemDuals120 - 121 in 40,000 lbs

Ruleset: NH Over Weight Registration

Jurisdiction: Interstates and Designated State Highways

Axle Group Tire Type Axle Spread Axle Weight Limit
Steer AxleSingle 22,400 lbs
Tandem DrivesDuals40 - 120 in 36,000 lbs
Trailer TandemDuals40 - 120 in 36,000 lbs
Trailer TandemDuals120 - 121 in 44,800 lbs

Dimension Restrictions

Interstate and Defense HighwaysNon-Designated Highways
Dimension NameMinMaxMinMax
Overall Height13' 6"
Overall LengthNo Limit
Overall Width8' 6"
Front OverhangNot Specified
Rear Overhang4' 0"
Semi-Trailer Length53' 0" 48' 0"
Semi-Trailer Wheelbase
- Kingpin to Center of Axles
41' 0"

References


Disclaimer

These figures are interpreted from the legal codes freely available, please read our full disclaimer and inform us of any errors!