Washburn Road over Patten Brook
PoorGrafton County, New Hampshire · 8.11 MI from E Hill RD · Structure no. 000301600010900
- Built
- 1950
- 75 years old, rebuilt 2014
- Condition
- Poor
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 30 ft
- 1 main span
- Daily traffic
- 289
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Washburn Road over Patten Brook is a concrete slab carrying Washburn Road over Patten Brook in Grafton County, New Hampshire. It was built in 1950 and reconstructed in 2014, so it is 75 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 289 vehicles a day, roughly 4% of them trucks, projected to reach 427 by 2043. The structure is 30 ft (9.1 m) long and 18 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Washburn Road over Patten Brook built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2014.
What condition is Washburn Road over Patten 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 October 2024.
How much traffic does Washburn Road over Patten Brook carry?
About 289 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Washburn Road over Patten Brook?
The structure is 30 ft (9.1 m) long with a longest span of 27 ft (8.2 m) and a deck 18 ft wide.
Who owns Washburn Road over Patten Brook?
It is owned by the City or Municipal Highway Agency.