Understanding New Hampshire Oversize Permits and Regulations
To protect its roadways, bridges, and public safety, New Hampshire has specific rules in place for oversize and overweight vehicles. These requirements are defined in the New Hampshire Oversize Permits load laws and enforced by the New Hampshire Department of Transportation (NHDOT). To prevent penalties or delays, carriers must get the required New Hampshire permit prior to entering the state.
Our agency provides a full range of permits including:
New Hampshire Oversize Permits
New Hampshire Overweight Permits
New Hampshire Overhang Permits
New Hampshire Single Trip Permits
New Hampshire Annual Permits
You can easily apply for your New Hampshire oversize permits online through our streamlined platform, saving time and ensuring compliance with all NHDOT permits requirements.
New Hampshire Key Permit Details and Validity
Permit Duration: New Hampshire oversize permits are valid for five travel days.
Permit Requirement: You must have your permit in hand before entering the state.
Operating Hours: Travel is allowed from one-half hour before sunrise to one-half hour after sunset, Monday through Friday.
Travel Restrictions: No weekend or holiday travel is permitted for overdimensional loads. Overweight-only loads are exempt from time restrictions.
Restricted Areas: Travel through Manchester is restricted from 7:00 a.m. to 9:00 a.m. and 3:00 p.m. to 6:00 p.m.
Holiday Restrictions: No travel on major holidays, with some additional holiday weekend restrictions.
Legal Dimensions and Weight Limits in New Hampshire
Understanding the legal size and weight limits is crucial when applying for New Hampshire Oversize Permits:
Length: 53′ on Interstates, 48′ on other roads
Width: 8′-6″
Height: 13′-6″
Weight: 80,000 lbs gross
Axle Weight Limits:
Single axle: 20,000 lbs (22,400 lbs on other roads)
Tandem axle: 34,000 lbs (36,000 lbs on other roads)
Tridem axle: Same as tandem
Routine Permit Limits:
Length: Up to 110′
Width: Up to 16′
Height: Up to 16′
Weight: Single axle 25,000 lbs, Tandem 50,000 lbs, Tridem 70,000 lbs, Quad 85,000 lbs
Loads exceeding these limits are classified as superloads and require additional review, including bridge assessments.
New Hampshire Safety Guidelines and Seasonal Restrictions
Safety is not optional. Depending on your load, you may require one or more escorts, particularly for oversize overhangs or widths. "Oversize Load" signs and red flags are necessary for visibility, and axle weights may be restricted even more during the spring thaw.
Why Choose Overweight Permit?
With Overweight Permit, you get more than just New Hampshire Oversize Permits—you gain a partner dedicated to your success. We handle the paperwork, keep you informed of New Hampshire oversize load regulations, and ensure your application meets all NHDOT permits requirements. Our expertise saves you time, reduces risk, and keeps your business running smoothly.
Ready to move your next oversize load? Trust Overweight Permit for all your New Hampshire Overweight Permits and experience hassle-free, compliant trucking in the Granite State.
