US302 over Ammonoosuc River
GoodCoos County, New Hampshire · 2.7 MI E. Int. US 3 · Structure no. 003901630011000
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 206 ft
- 3 main spans
- Daily traffic
- 4,075
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US302 over Ammonoosuc River is a steel continuous stringer/multi-beam or girder carrying US302 over Ammonoosuc River in Coos County, New Hampshire. It was built in 1974, so it is 51 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 4,075 vehicles a day, roughly 7% of them trucks, projected to reach 6,031 by 2043. The structure is 206 ft (62.8 m) long and 47 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US302 over Ammonoosuc River built?
It was built in 1974, making it 51 years old in 2025.
What condition is US302 over 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 August 2024.
How much traffic does US302 over Ammonoosuc River carry?
About 4,075 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is US302 over Ammonoosuc River?
The structure is 206 ft (62.8 m) long with a longest span of 77 ft (23.5 m) and a deck 47 ft wide.
Who owns US302 over Ammonoosuc River?
It is owned by the State Highway Agency.