INTERSTATE-691 EB over Knotter Drive
GoodNew Haven County, Connecticut · 1.1 MI W of Route 10 · Structure no. 05474
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 114 ft
- 1 main span
- Daily traffic
- 28,500
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
INTERSTATE-691 EB over Knotter Drive is a prestressed concrete stringer/multi-beam or girder carrying INTERSTATE-691 EB over Knotter Drive in New Haven County, Connecticut. It was built in 1986, so it is 39 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 28,500 vehicles a day, roughly 14% of them trucks, projected to reach 42,348 by 2041. The structure is 114 ft (34.7 m) long and 46 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was INTERSTATE-691 EB over Knotter Drive built?
It was built in 1986, making it 39 years old in 2025.
What condition is INTERSTATE-691 EB over Knotter Drive 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 October 2023.
How much traffic does INTERSTATE-691 EB over Knotter Drive carry?
About 28,500 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is INTERSTATE-691 EB over Knotter Drive?
The structure is 114 ft (34.7 m) long with a longest span of 105 ft (32 m) and a deck 46 ft wide.
Who owns INTERSTATE-691 EB over Knotter Drive?
It is owned by the State Highway Agency.