Cilleyville Road over Blackwater River
FairMerrimack County, New Hampshire · 0.6 MI Nh 11 · Structure no. 000800530009200
- Built
- 1934
- 91 years old, rebuilt 1996
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 38 ft
- 1 main span
- Daily traffic
- 173
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Cilleyville Road over Blackwater River is a prestressed concrete slab carrying Cilleyville Road over Blackwater River in Merrimack County, New Hampshire. It was built in 1934 and reconstructed in 1996, so it is 91 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 6 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 173 vehicles a day, roughly 3% of them trucks, projected to reach 256 by 2043. The structure is 38 ft (11.6 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cilleyville Road over Blackwater River built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1996.
What condition is Cilleyville Road over Blackwater 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 October 2024.
How much traffic does Cilleyville Road over Blackwater River carry?
About 173 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Cilleyville Road over Blackwater River?
The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 32 ft wide.
Who owns Cilleyville Road over Blackwater River?
It is owned by the City or Municipal Highway Agency.