Nh 11A over Gunstock River
FairBelknap County, New Hampshire · 3.2 MI E Laconia Tl · Structure no. 009101340009800
- Built
- 1926
- 99 years old, rebuilt 1991
- Condition
- Fair
- inspected May 2023
- Type
- Slab
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 4,557
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nh 11A over Gunstock River is a concrete slab carrying Nh 11A over Gunstock River in Belknap County, New Hampshire. It was built in 1926 and reconstructed in 1991, so it is 99 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 4,557 vehicles a day, roughly 4% of them trucks, projected to reach 6,744 by 2043. The structure is 31 ft (9.6 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nh 11A over Gunstock River built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1991.
What condition is Nh 11A over Gunstock 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 May 2023.
How much traffic does Nh 11A over Gunstock River carry?
About 4,557 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Nh 11A over Gunstock River?
The structure is 31 ft (9.6 m) long with a longest span of 25 ft (7.6 m) and a deck 33 ft wide.
Who owns Nh 11A over Gunstock River?
It is owned by the State Highway Agency.