SR 846 over Naugatuck River
FairNew Haven County, Connecticut · 0.1 Mile North of SR 847 · Structure no. 01117
- Built
- 1922
- 103 years old
- Condition
- Fair
- inspected October 2023
- Type
- Arch - Deck
- Concrete
- Length
- 194 ft
- 3 main spans
- Daily traffic
- 20,300
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SR 846 over Naugatuck River is a concrete arch - deck carrying SR 846 over Naugatuck River in New Haven County, Connecticut. It was built in 1922, so it is 103 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 5 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 20,300 vehicles a day, roughly 6% of them trucks, projected to reach 30,164 by 2040. The structure is 194 ft (59.1 m) long and 64 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 |
|---|---|---|
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| 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 SR 846 over Naugatuck River built?
It was built in 1922, making it 103 years old in 2025.
What condition is SR 846 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 October 2023.
How much traffic does SR 846 over Naugatuck River carry?
About 20,300 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is SR 846 over Naugatuck River?
The structure is 194 ft (59.1 m) long with a longest span of 64 ft (19.5 m) and a deck 64 ft wide.
Who owns SR 846 over Naugatuck River?
It is owned by the State Highway Agency.