Permits
New Hampshire oversize permits are valid for five travel days. Must have permit prior to entering the state.
Operating Time
One-half hour before sunrise to one-half hour after sunset, Monday through Friday. No weekend or holiday travel for overdimensional loads. Overweight only are not restricted for travel time.
Restricted Travel
[Detailed restricted travel information]
Legal Dimensions
Length: [Detailed length information]
Width: 8′-6″
Height: 13′-6″
Weight: 80,000 Gross
Single – 20,000 designated highways* (22,400 other roads)
Tandem – 34,000 designated highways* (36,000 other roads)
Tridem – Same as tandem
Routine Permit Limits
Length: 110′
Width: 16′
Height: 16′
Weight:
Single – 25,000
Tandem – 50,000
Tridem – 70,000
Quad – 85,000
Escorts
Length: [Detailed length escort information]
Overhang: [Detailed overhang escort information]
Width: [Detailed width escort information]
Height: Route survey may be required for over 13′-6″ high, escort not usually required for height.
Signs, Flags & Lights
[Detailed signs, flags and lights information]
Seasonal Load Restrictions
During spring thaw, weights may be limited to 20,000 gross axle weight or less.
