River Road over Mascoma River
GoodGrafton County, New Hampshire · 2.6 MI from Dorchestertl · Structure no. 003601230012600
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected September 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 53 ft
- 1 main span
- Daily traffic
- 96
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
River Road over Mascoma River is a prestressed concrete slab carrying River Road over Mascoma River in Grafton County, New Hampshire. It was built in 2010, so it is 15 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 96 vehicles a day, roughly 4% of them trucks, projected to reach 142 by 2043. The structure is 53 ft (16.1 m) long and 29 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was River Road over Mascoma River built?
It was built in 2010, making it 15 years old in 2025.
What condition is River Road over Mascoma 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 River Road over Mascoma River carry?
About 96 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is River Road over Mascoma River?
The structure is 53 ft (16.1 m) long with a longest span of 49 ft (15 m) and a deck 29 ft wide.
Who owns River Road over Mascoma River?
It is owned by the City or Municipal Highway Agency.