Nh 28 over Coffin Brook
GoodBelknap County, New Hampshire · 3.0 MI N of Barnstead Tl · Structure no. 000601900012100
- Built
- 1930
- 95 years old
- Condition
- Good
- inspected November 2024
- Type
- Slab
- Concrete
- Length
- 22 ft
- 1 main span
- Daily traffic
- 7,487
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nh 28 over Coffin Brook is a concrete slab carrying Nh 28 over Coffin Brook in Belknap County, New Hampshire. It was built in 1930, so it is 95 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 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 7,487 vehicles a day, roughly 7% of them trucks, projected to reach 11,080 by 2043. The structure is 22 ft (6.7 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
| 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 28 over Coffin Brook built?
It was built in 1930, making it 95 years old in 2025.
What condition is Nh 28 over Coffin 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 November 2024.
How much traffic does Nh 28 over Coffin Brook carry?
About 7,487 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Nh 28 over Coffin Brook?
The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.
Who owns Nh 28 over Coffin Brook?
It is owned by the State Highway Agency.