Nh 12 over S Branch Ashuelot River
PoorCheshire County, New Hampshire · 1.5 MI S to Troy Center · Structure no. 025800890011400
- Built
- 1941
- 84 years old
- Condition
- Poor
- inspected November 2024
- Type
- Frame
- Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 8,976
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nh 12 over S Branch Ashuelot River is a concrete frame carrying Nh 12 over S Branch Ashuelot River in Cheshire County, New Hampshire. It was built in 1941, so it is 84 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 8,976 vehicles a day, roughly 7% of them trucks, projected to reach 13,284 by 2043. The structure is 36 ft (11 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nh 12 over S Branch Ashuelot River built?
It was built in 1941, making it 84 years old in 2025.
What condition is Nh 12 over S Branch Ashuelot River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.
How much traffic does Nh 12 over S Branch Ashuelot River carry?
About 8,976 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Nh 12 over S Branch Ashuelot River?
The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.
Who owns Nh 12 over S Branch Ashuelot River?
It is owned by the State Highway Agency.