Dennison Road over Conn Valley Railroad
FairMiddlesex County, Connecticut · 580 Ft N of Route 154 · Structure no. 04611
- Built
- 1910
- 115 years old, rebuilt 1981
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 103 ft
- 3 main spans
- Daily traffic
- 1,274
- 2023 count
- Owner
- Unknown
- Unknown
About this bridge
Dennison Road over Conn Valley Railroad is a steel stringer/multi-beam or girder carrying Dennison Road over Conn Valley Railroad in Middlesex County, Connecticut. It was built in 1910 and reconstructed in 1981, so it is 115 years old, older than the Connecticut average of 56.7 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 1,274 vehicles a day, roughly 4% of them trucks, projected to reach 1,893 by 2043. The structure is 103 ft (31.4 m) long and 26 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dennison Road over Conn Valley Railroad built?
It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1981.
What condition is Dennison Road over Conn Valley Railroad 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 2023.
How much traffic does Dennison Road over Conn Valley Railroad carry?
About 1,274 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Dennison Road over Conn Valley Railroad?
The structure is 103 ft (31.4 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.
Who owns Dennison Road over Conn Valley Railroad?
It is owned by the Unknown and maintained by the State Highway Agency.