Main Street over Beaver Brook
PoorHillsborough County, New Hampshire · 1.75 MI JCT 128 · Structure no. 020501100009000
- Built
- 1900
- 125 years old, rebuilt 1929
- Condition
- Poor
- inspected November 2024
- Type
- Arch - Deck
- Masonry
- Length
- 46 ft
- 2 main spans
- Daily traffic
- 6,111
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Main Street over Beaver Brook is a masonry arch - deck carrying Main Street over Beaver Brook in Hillsborough County, New Hampshire. It was built in 1900 and reconstructed in 1929, so it is 125 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 6,111 vehicles a day, roughly 4% of them trucks, projected to reach 9,044 by 2043. The structure is 46 ft (14 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Main Street over Beaver Brook built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1929.
What condition is Main Street over Beaver Brook in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.
How much traffic does Main Street over Beaver Brook carry?
About 6,111 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Main Street over Beaver Brook?
The structure is 46 ft (14 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.
Who owns Main Street over Beaver Brook?
It is owned by the State Highway Agency.