Route 70 over Quinnipiac River
GoodNew Haven County, Connecticut · 1 Mile West of RTE 71 JCT · Structure no. 05625
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 106 ft
- 1 main span
- Daily traffic
- 7,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Route 70 over Quinnipiac River is a prestressed concrete box beam or girders - multiple carrying Route 70 over Quinnipiac River in New Haven County, Connecticut. It was built in 1988, so it is 37 years old, younger than the Connecticut average of 56.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 7,400 vehicles a day, roughly 5% of them trucks, projected to reach 10,996 by 2042. The structure is 106 ft (32.3 m) long and 53 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 70 over Quinnipiac River built?
It was built in 1988, making it 37 years old in 2025.
What condition is Route 70 over Quinnipiac River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does Route 70 over Quinnipiac River carry?
About 7,400 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Route 70 over Quinnipiac River?
The structure is 106 ft (32.3 m) long with a longest span of 102 ft (31.1 m) and a deck 53 ft wide.
Who owns Route 70 over Quinnipiac River?
It is owned by the State Highway Agency.