Route 121 over Route 15
FairNew Haven County, Connecticut · 1.3 MI S of Route 34 · Structure no. 00765
- Built
- 1941
- 84 years old, rebuilt 1990
- Condition
- Fair
- inspected October 2023
- Type
- Tee Beam
- Concrete
- Length
- 162 ft
- 2 main spans
- Daily traffic
- 8,700
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Route 121 over Route 15 is a concrete tee beam carrying Route 121 over Route 15 in New Haven County, Connecticut. It was built in 1941 and reconstructed in 1990, so it is 84 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 8,700 vehicles a day, roughly 5% of them trucks, projected to reach 12,927 by 2041. The structure is 162 ft (49.4 m) long and 52 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 121 over Route 15 built?
It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1990.
What condition is Route 121 over Route 15 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 Route 121 over Route 15 carry?
About 8,700 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Route 121 over Route 15?
The structure is 162 ft (49.4 m) long with a longest span of 73 ft (22.3 m) and a deck 52 ft wide.
Who owns Route 121 over Route 15?
It is owned by the State Highway Agency.