Nh 25 over Red Hill River
FairCarroll County, New Hampshire · 3.8 MI from Ctr Harbor Tl · Structure no. 017601360021500
- Built
- 1940
- 85 years old, rebuilt 1984
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 9,873
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nh 25 over Red Hill River is a concrete slab carrying Nh 25 over Red Hill River in Carroll County, New Hampshire. It was built in 1940 and reconstructed in 1984, so it is 85 years old, older than the New Hampshire average of 56.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 9,873 vehicles a day, roughly 7% of them trucks, projected to reach 14,612 by 2043. The structure is 27 ft (8.2 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Nh 25 over Red Hill River built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1984.
What condition is Nh 25 over Red Hill River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.
How much traffic does Nh 25 over Red Hill River carry?
About 9,873 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Nh 25 over Red Hill River?
The structure is 27 ft (8.2 m) long with a longest span of 23 ft (7 m) and a deck 36 ft wide.
Who owns Nh 25 over Red Hill River?
It is owned by the State Highway Agency.