INTERSTATE-91 SB over SR 729
GoodNew Haven County, Connecticut · 0.8 MI N of Route 40 · Structure no. 03112B
- Built
- 1965
- 60 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 75 ft
- 1 main span
- Daily traffic
- 45,400
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
INTERSTATE-91 SB over SR 729 is a steel stringer/multi-beam or girder carrying INTERSTATE-91 SB over SR 729 in New Haven County, Connecticut. It was built in 1965, 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 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 45,400 vehicles a day, roughly 9% of them trucks, projected to reach 67,460 by 2039. The structure is 75 ft (22.9 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 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-91 SB over SR 729 built?
It was built in 1965, making it 60 years old in 2025.
What condition is INTERSTATE-91 SB over SR 729 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 June 2023.
How much traffic does INTERSTATE-91 SB over SR 729 carry?
About 45,400 vehicles per day (2019 count), of which roughly 9% are trucks.
How long is INTERSTATE-91 SB over SR 729?
The structure is 75 ft (22.9 m) long with a longest span of 70 ft (21.3 m) and a deck 61 ft wide.
Who owns INTERSTATE-91 SB over SR 729?
It is owned by the State Highway Agency.