NH109 over Smith River
GoodCarroll County, New Hampshire · 3.5 MI SE Tuftonboro Tl · Structure no. 028301000011200
- Built
- 1900
- 125 years old, rebuilt 1995
- Condition
- Good
- inspected September 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 7,358
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NH109 over Smith River is a prestressed concrete slab carrying NH109 over Smith River in Carroll County, New Hampshire. It was built in 1900 and reconstructed in 1995, so it is 125 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 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 7,358 vehicles a day, roughly 4% of them trucks, projected to reach 10,889 by 2043. The structure is 31 ft (9.4 m) long and 67 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 8 Very Good | No problems noted. |
| 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 NH109 over Smith River built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1995.
What condition is NH109 over Smith River 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 September 2024.
How much traffic does NH109 over Smith River carry?
About 7,358 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is NH109 over Smith River?
The structure is 31 ft (9.4 m) long with a longest span of 26 ft (7.9 m) and a deck 67 ft wide.
Who owns NH109 over Smith River?
It is owned by the State Highway Agency.