Great Brook Road over Great Brook
PoorGrafton County, New Hampshire · 380 Ft FR Nh RTE 120 · Structure no. 014401520006000
- Built
- 1936
- 89 years old, rebuilt 1993
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 38 ft
- 1 main span
- Daily traffic
- 107
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Great Brook Road over Great Brook is a steel stringer/multi-beam or girder carrying Great Brook Road over Great Brook in Grafton County, New Hampshire. It was built in 1936 and reconstructed in 1993, so it is 89 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 107 vehicles a day, roughly 4% of them trucks, projected to reach 158 by 2043. The structure is 38 ft (11.6 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Great Brook Road over Great Brook built?
It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1993.
What condition is Great Brook Road over Great 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 July 2024.
How much traffic does Great Brook Road over Great Brook carry?
About 107 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Great Brook Road over Great Brook?
The structure is 38 ft (11.6 m) long with a longest span of 34 ft (10.4 m) and a deck 16 ft wide.
Who owns Great Brook Road over Great Brook?
It is owned by the City or Municipal Highway Agency.