Route 15 NB over Quinnipiac River
PoorPosted for loadNew Haven County, Connecticut · 1 MI No of JCT Route 150 · Structure no. 00793A
- Built
- 1946
- 79 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 107 ft
- 2 main spans
- Daily traffic
- 33,700
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Route 15 NB over Quinnipiac River is a steel stringer/multi-beam or girder carrying Route 15 NB over Quinnipiac River in New Haven County, Connecticut. It was built in 1946, so it is 79 years old, older than the Connecticut average of 56.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.
It carries about 33,700 vehicles a day, roughly 1% of them trucks, projected to reach 50,075 by 2039. The structure is 107 ft (32.6 m) long and 37 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 15 NB over Quinnipiac River built?
It was built in 1946, making it 79 years old in 2025.
What condition is Route 15 NB over Quinnipiac River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.
How much traffic does Route 15 NB over Quinnipiac River carry?
About 33,700 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is Route 15 NB over Quinnipiac River?
The structure is 107 ft (32.6 m) long with a longest span of 51 ft (15.5 m) and a deck 37 ft wide.
Who owns Route 15 NB over Quinnipiac River?
It is owned by the State Highway Agency.