Griffin Road over Griffin Brook
GoodMerrimack County, New Hampshire · 1/4 MI Center Hill RD JCT · Structure no. 007901510009700
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected August 2024
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 1 main span
- Daily traffic
- 96
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Griffin Road over Griffin Brook is a concrete culvert carrying Griffin Road over Griffin Brook in Merrimack County, New Hampshire. It was built in 2008, so it is 17 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 96 vehicles a day, roughly 3% of them trucks, projected to reach 142 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 5 mi (8 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 | 9 Excellent | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Griffin Road over Griffin Brook built?
It was built in 2008, making it 17 years old in 2025.
What condition is Griffin Road over Griffin 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 2024.
How much traffic does Griffin Road over Griffin Brook carry?
About 96 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Griffin Road over Griffin Brook?
The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m).
Who owns Griffin Road over Griffin Brook?
It is owned by the City or Municipal Highway Agency.