INTERSTATE-691 WB over Knotter Drive
FairNew Haven County, Connecticut · 1.1 MI W of Route 10 · Structure no. 05479
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 107 ft
- 1 main span
- Daily traffic
- 28,500
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
INTERSTATE-691 WB over Knotter Drive is a prestressed concrete stringer/multi-beam or girder carrying INTERSTATE-691 WB 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 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 28,500 vehicles a day, roughly 14% of them trucks, projected to reach 42,348 by 2041. The structure is 107 ft (32.6 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was INTERSTATE-691 WB over Knotter Drive built?
It was built in 1986, making it 39 years old in 2025.
What condition is INTERSTATE-691 WB over Knotter Drive 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 INTERSTATE-691 WB over Knotter Drive carry?
About 28,500 vehicles per day (2021 count), of which roughly 14% are trucks.
How long is INTERSTATE-691 WB over Knotter Drive?
The structure is 107 ft (32.6 m) long with a longest span of 100 ft (30.5 m) and a deck 46 ft wide.
Who owns INTERSTATE-691 WB over Knotter Drive?
It is owned by the State Highway Agency.