Route 34 over Naugatuck River
FairNew Haven County, Connecticut · 0.1 MI E of Route 8 · Structure no. 00947
- Built
- 1959
- 66 years old, rebuilt 2017
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 330 ft
- 3 main spans
- Daily traffic
- 33,800
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Route 34 over Naugatuck River is a steel stringer/multi-beam or girder carrying Route 34 over Naugatuck River in New Haven County, Connecticut. It was built in 1959 and reconstructed in 2017, so it is 66 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 33,800 vehicles a day, roughly 6% of them trucks, projected to reach 50,223 by 2041. The structure is 330 ft (100.5 m) long and 92 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Route 34 over Naugatuck River built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2017.
What condition is Route 34 over Naugatuck 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 November 2023.
How much traffic does Route 34 over Naugatuck River carry?
About 33,800 vehicles per day (2021 count), of which roughly 6% are trucks.
How long is Route 34 over Naugatuck River?
The structure is 330 ft (100.5 m) long with a longest span of 107 ft (32.6 m) and a deck 92 ft wide.
Who owns Route 34 over Naugatuck River?
It is owned by the State Highway Agency.