Nh 10 over Clark Brook
GoodGrafton County, New Hampshire · 4.6 MI N. Piermont T.L. · Structure no. 011701250013000
- Built
- 1940
- 85 years old
- Condition
- Good
- inspected March 2024
- Type
- Culvert
- Concrete
- Length
- 20 ft
- 1 main span
- Daily traffic
- 3,734
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nh 10 over Clark Brook is a concrete culvert carrying Nh 10 over Clark Brook in Grafton County, New Hampshire. It was built in 1940, 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 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 3,734 vehicles a day, roughly 7% of them trucks, projected to reach 5,526 by 2043. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nh 10 over Clark Brook built?
It was built in 1940, making it 85 years old in 2025.
What condition is Nh 10 over Clark Brook 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 March 2024.
How much traffic does Nh 10 over Clark Brook carry?
About 3,734 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Nh 10 over Clark Brook?
The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).
Who owns Nh 10 over Clark Brook?
It is owned by the State Highway Agency.