US302 Nh 10 over Wild Ammonoosuc River
GoodGrafton County, New Hampshire · 2.0 MI FR Haverhill Tl · Structure no. 001801320007500
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 126 ft
- 1 main span
- Daily traffic
- 3,551
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US302 Nh 10 over Wild Ammonoosuc River is a steel stringer/multi-beam or girder carrying US302 Nh 10 over Wild Ammonoosuc River in Grafton County, New Hampshire. It was built in 1989, so it is 36 years old, younger than the New Hampshire average of 56.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 3,551 vehicles a day, roughly 7% of them trucks, projected to reach 5,255 by 2043. The structure is 126 ft (38.3 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US302 Nh 10 over Wild Ammonoosuc River built?
It was built in 1989, making it 36 years old in 2025.
What condition is US302 Nh 10 over Wild Ammonoosuc River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.
How much traffic does US302 Nh 10 over Wild Ammonoosuc River carry?
About 3,551 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is US302 Nh 10 over Wild Ammonoosuc River?
The structure is 126 ft (38.3 m) long with a longest span of 116 ft (35.4 m) and a deck 47 ft wide.
Who owns US302 Nh 10 over Wild Ammonoosuc River?
It is owned by the State Highway Agency.