Groton Road over Tannery Brook
GoodGrafton County, New Hampshire · 2.7 MI from Bristol Tl · Structure no. 011800930010100
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected May 2024
- Type
- Frame
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 838
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Groton Road over Tannery Brook is a concrete frame carrying Groton Road over Tannery Brook in Grafton County, New Hampshire. It was built in 1984, so it is 41 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 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 838 vehicles a day, roughly 10% of them trucks, projected to reach 1,240 by 2043. The structure is 23 ft (7 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 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 Groton Road over Tannery Brook built?
It was built in 1984, making it 41 years old in 2025.
What condition is Groton Road over Tannery 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 May 2024.
How much traffic does Groton Road over Tannery Brook carry?
About 838 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Groton Road over Tannery Brook?
The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.
Who owns Groton Road over Tannery Brook?
It is owned by the State Highway Agency.