Route 34 over Derby Canal
FairNew Haven County, Connecticut · 0.8 MI W of Route 8 · Structure no. 06062
- Built
- 1952
- 73 years old, rebuilt 2009
- Condition
- Fair
- inspected November 2023
- Type
- Culvert
- Steel
- Length
- 75 ft
- 4 main spans
- Daily traffic
- 9,600
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Route 34 over Derby Canal is a steel culvert carrying Route 34 over Derby Canal in New Haven County, Connecticut. It was built in 1952 and reconstructed in 2009, so it is 73 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 9,600 vehicles a day, roughly 4% of them trucks, projected to reach 14,265 by 2041. The structure is 75 ft (22.9 m) long. 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 34 over Derby Canal built?
It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2009.
What condition is Route 34 over Derby Canal 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 November 2023.
How much traffic does Route 34 over Derby Canal carry?
About 9,600 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Route 34 over Derby Canal?
The structure is 75 ft (22.9 m) long with a longest span of 17 ft (5.2 m).
Who owns Route 34 over Derby Canal?
It is owned by the State Highway Agency.