Gregg Mill Road over S Br Piscataquog River
FairHillsborough County, New Hampshire · 164 Ft FR River Road · Structure no. 017901320013800
- Built
- 1938
- 87 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Concrete
- Length
- 56 ft
- 1 main span
- Daily traffic
- 620
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Gregg Mill Road over S Br Piscataquog River is a concrete tee beam carrying Gregg Mill Road over S Br Piscataquog River in Hillsborough County, New Hampshire. It was built in 1938, so it is 87 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 620 vehicles a day, roughly 4% of them trucks, projected to reach 917 by 2043. The structure is 56 ft (17.1 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Gregg Mill Road over S Br Piscataquog River built?
It was built in 1938, making it 87 years old in 2025.
What condition is Gregg Mill Road over S Br Piscataquog River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Gregg Mill Road over S Br Piscataquog River carry?
About 620 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Gregg Mill Road over S Br Piscataquog River?
The structure is 56 ft (17.1 m) long with a longest span of 52 ft (15.8 m) and a deck 21 ft wide.
Who owns Gregg Mill Road over S Br Piscataquog River?
It is owned by the City or Municipal Highway Agency.