INTERSTATE-91 SB over Route 9 Northbound
FairMiddlesex County, Connecticut · Aprox 2 Mi.N Middletowntl · Structure no. 03150
- Built
- 1965
- 60 years old, rebuilt 1996
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 165 ft
- 3 main spans
- Daily traffic
- 48,100
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
INTERSTATE-91 SB over Route 9 Northbound is a steel stringer/multi-beam or girder carrying INTERSTATE-91 SB over Route 9 Northbound in Middlesex County, Connecticut. It was built in 1965 and reconstructed in 1996, so it is 60 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 48,100 vehicles a day, roughly 9% of them trucks, projected to reach 71,472 by 2039. The structure is 165 ft (50.4 m) long and 55 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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-91 SB over Route 9 Northbound built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1996.
What condition is INTERSTATE-91 SB over Route 9 Northbound 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 June 2023.
How much traffic does INTERSTATE-91 SB over Route 9 Northbound carry?
About 48,100 vehicles per day (2019 count), of which roughly 9% are trucks.
How long is INTERSTATE-91 SB over Route 9 Northbound?
The structure is 165 ft (50.4 m) long with a longest span of 56 ft (17.1 m) and a deck 55 ft wide.
Who owns INTERSTATE-91 SB over Route 9 Northbound?
It is owned by the State Highway Agency.