South Leonard ST over Naugatuck River
FairNew Haven County, Connecticut · 0.1 MI West of So Main ST · Structure no. 04164
- Built
- 1956
- 69 years old, rebuilt 1991
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 192 ft
- 3 main spans
- Daily traffic
- 1,100
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
South Leonard ST over Naugatuck River is a steel stringer/multi-beam or girder carrying South Leonard ST over Naugatuck River in New Haven County, Connecticut. It was built in 1956 and reconstructed in 1991, so it is 69 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 1,100 vehicles a day, roughly 5% of them trucks, projected to reach 1,634 by 2043. The structure is 192 ft (58.4 m) long and 42 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 | 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. |
| 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 South Leonard ST over Naugatuck River built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1991.
What condition is South Leonard ST 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 2024.
How much traffic does South Leonard ST over Naugatuck River carry?
About 1,100 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is South Leonard ST over Naugatuck River?
The structure is 192 ft (58.4 m) long with a longest span of 62 ft (18.9 m) and a deck 42 ft wide.
Who owns South Leonard ST over Naugatuck River?
It is owned by the City or Municipal Highway Agency.