New Hampshire oversize load rules
Legal limits, pilot car requirements, travel restrictions, superload thresholds and permit fees for oversize and overweight loads in New Hampshire.
Legal limits without a permit
| Width | 8′6″ (102 in) |
|---|---|
| Height | 13′6″ |
| Length | 53′ semitrailer · 45′ single unit |
| Weight | 80,000 lb gross |
What Pro adds for New Hampshire
- 6 escort rules with counts by width, height, length and road type
- 4 travel restrictions: curfews, night, weekends, holidays
- Superload thresholds and conditions
- 3 published fee lines and permit lead time
- Lane routing with miles per state and a cost breakdown
Escort (pilot car) requirements
- 6 width, height and length thresholds with the escort count for each
- Police escort triggers
- Overhang and route-type conditions
Travel restrictions
- 4 restrictions: curfews, night travel, weekends and holidays
- Which ones apply to a given load size
Superloads
- Exact thresholds and what the state requires past them
- Lead times, route surveys and police escort conditions
Permit fees
- 3 published fee lines with links to the fee schedule
- Validity periods and add-on charges
Common questions
When does a load need an escort in New Hampshire?
Answer available to members. Start free or sign in.
Can oversize loads travel on weekends in New Hampshire?
Answer available to members. Start free or sign in.
What is a supermove in New Hampshire?
Answer available to members. Start free or sign in.
Sources
- N.H. Admin. Code Tra 304.17, escort vehicles
- N.H. Admin. Code Tra 300 (permits, supermoves, travel days)
- RSA 266 (size and weight limits)
- RSA 266:22, permit fees
- NHDOT OSOW permit application (office contact)
Planning reference. Permits carry their own conditions, and city and county roads have separate rules. Confirm with the NHDOT Bureau of Turnpikes / Permit Office before moving a load. Found an error? Report it.
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