Nh 4A over Kimpton Brook
GoodMerrimack County, New Hampshire · 1.9 MI from Andover Tl · Structure no. 027501420008700
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected April 2024
- Type
- Frame
- Concrete
- Length
- 30 ft
- 1 main span
- Daily traffic
- 545
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Nh 4A over Kimpton Brook is a concrete frame carrying Nh 4A over Kimpton Brook in Merrimack County, New Hampshire. It was built in 1955, so it is 70 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 545 vehicles a day, roughly 4% of them trucks, projected to reach 806 by 2043. The structure is 30 ft (9.1 m) long and 36 ft wide. If it were closed, the detour would be 28 mi (45 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nh 4A over Kimpton Brook built?
It was built in 1955, making it 70 years old in 2025.
What condition is Nh 4A over Kimpton 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 April 2024.
How much traffic does Nh 4A over Kimpton Brook carry?
About 545 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Nh 4A over Kimpton Brook?
The structure is 30 ft (9.1 m) long with a longest span of 27 ft (8.2 m) and a deck 36 ft wide.
Who owns Nh 4A over Kimpton Brook?
It is owned by the State Highway Agency.