Bohannon Bridge RD over Nissitissit River
GoodHillsborough County, New Hampshire · 0.99 MI from Mass. Sl · Structure no. 003401050005500
- Built
- 1940
- 85 years old, rebuilt 1998
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 34 ft
- 1 main span
- Daily traffic
- 524
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Bohannon Bridge RD over Nissitissit River is a prestressed concrete slab carrying Bohannon Bridge RD over Nissitissit River in Hillsborough County, New Hampshire. It was built in 1940 and reconstructed in 1998, 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 524 vehicles a day, roughly 4% of them trucks, projected to reach 775 by 2043. The structure is 34 ft (10.4 m) long and 20 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 | 8 Very Good | No problems noted. |
| 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 Bohannon Bridge RD over Nissitissit River built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1998.
What condition is Bohannon Bridge RD over Nissitissit 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 August 2024.
How much traffic does Bohannon Bridge RD over Nissitissit River carry?
About 524 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Bohannon Bridge RD over Nissitissit River?
The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 20 ft wide.
Who owns Bohannon Bridge RD over Nissitissit River?
It is owned by the City or Municipal Highway Agency.