North River Road over Purgatory Brook
GoodHillsborough County, New Hampshire · .64 MI Lyndeboro Tl. · Structure no. 017200760015200
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 2,702
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
North River Road over Purgatory Brook is a steel stringer/multi-beam or girder carrying North River Road over Purgatory Brook in Hillsborough County, New Hampshire. It was built in 1978, so it is 47 years old, younger 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 2,702 vehicles a day, roughly 10% of them trucks, projected to reach 3,998 by 2043. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| 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 North River Road over Purgatory Brook built?
It was built in 1978, making it 47 years old in 2025.
What condition is North River Road over Purgatory 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 North River Road over Purgatory Brook carry?
About 2,702 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is North River Road over Purgatory Brook?
The structure is 40 ft (12.2 m) long with a longest span of 36 ft (11 m) and a deck 32 ft wide.
Who owns North River Road over Purgatory Brook?
It is owned by the State Highway Agency.