NH111 over Harris RD Flatrock Bk
GoodRockingham County, New Hampshire · 0.5MI East Nh 28 · Structure no. 028001610011400
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 601 ft
- 4 main spans
- Daily traffic
- 17,014
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NH111 over Harris RD Flatrock Bk is a steel continuous stringer/multi-beam or girder carrying NH111 over Harris RD Flatrock Bk in Rockingham County, New Hampshire. It was built in 2007, so it is 18 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 17,014 vehicles a day, roughly 6% of them trucks, projected to reach 25,180 by 2043. The structure is 601 ft (183.2 m) long and 86 ft wide.
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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NH111 over Harris RD Flatrock Bk built?
It was built in 2007, making it 18 years old in 2025.
What condition is NH111 over Harris RD Flatrock Bk 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 May 2023.
How much traffic does NH111 over Harris RD Flatrock Bk carry?
About 17,014 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is NH111 over Harris RD Flatrock Bk?
The structure is 601 ft (183.2 m) long with a longest span of 161 ft (49.1 m) and a deck 86 ft wide.
Who owns NH111 over Harris RD Flatrock Bk?
It is owned by the State Highway Agency.