Ridge Road over Salmon Brook
GoodHillsborough County, New Hampshire · .5 MI W of E Dunstable RD · Structure no. 017701040003500
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected August 2023
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 4,876
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Ridge Road over Salmon Brook is a concrete culvert carrying Ridge Road over Salmon Brook in Hillsborough County, New Hampshire. It was built in 1998, so it is 27 years old, younger 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 4,876 vehicles a day, roughly 3% of them trucks, projected to reach 7,216 by 2043. The structure is 26 ft (7.8 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ridge Road over Salmon Brook built?
It was built in 1998, making it 27 years old in 2025.
What condition is Ridge Road over Salmon 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 August 2023.
How much traffic does Ridge Road over Salmon Brook carry?
About 4,876 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Ridge Road over Salmon Brook?
The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m).
Who owns Ridge Road over Salmon Brook?
It is owned by the City or Municipal Highway Agency.