NH121A over Exeter River
GoodRockingham County, New Hampshire · 2.85 Mi. SE Chester Tl · Structure no. 023200820010300
- Built
- 1937
- 88 years old, rebuilt 2013
- Condition
- Good
- inspected March 2023
- Type
- Slab
- Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 3,762
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NH121A over Exeter River is a concrete slab carrying NH121A over Exeter River in Rockingham County, New Hampshire. It was built in 1937 and reconstructed in 2013, so it is 88 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 3,762 vehicles a day, roughly 4% of them trucks, projected to reach 5,567 by 2043. The structure is 25 ft (7.6 m) long and 32 ft wide. 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NH121A over Exeter River built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2013.
What condition is NH121A over Exeter 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 March 2023.
How much traffic does NH121A over Exeter River carry?
About 3,762 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is NH121A over Exeter River?
The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m) and a deck 32 ft wide.
Who owns NH121A over Exeter River?
It is owned by the State Highway Agency.