Nh 9 NH108 SB over Cocheco River
GoodStrafford County, New Hampshire · 0.1 MI JCT Nh 4 · Structure no. 006501310012300
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 140 ft
- 2 main spans
- Daily traffic
- 5,430
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Nh 9 NH108 SB over Cocheco River is a steel continuous stringer/multi-beam or girder carrying Nh 9 NH108 SB over Cocheco River in Strafford County, New Hampshire. It was built in 1976, so it is 49 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 5,430 vehicles a day, roughly 5% of them trucks, projected to reach 8,036 by 2043. The structure is 140 ft (42.7 m) long and 81 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| 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 Nh 9 NH108 SB over Cocheco River built?
It was built in 1976, making it 49 years old in 2025.
What condition is Nh 9 NH108 SB over Cocheco 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 September 2024.
How much traffic does Nh 9 NH108 SB over Cocheco River carry?
About 5,430 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Nh 9 NH108 SB over Cocheco River?
The structure is 140 ft (42.7 m) long with a longest span of 68 ft (20.7 m) and a deck 81 ft wide.
Who owns Nh 9 NH108 SB over Cocheco River?
It is owned by the City or Municipal Highway Agency.