US Bridges

INTERSTATE-691 over Bunker Avenue

Fair

New Haven County, Connecticut · .58 MI West of Route 5 · Structure no. 02055

Built
1971
54 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
96 ft
1 main span
Daily traffic
78,500
2021 count
Owner
State
State Highway Agency

About this bridge

INTERSTATE-691 over Bunker Avenue is a steel stringer/multi-beam or girder carrying INTERSTATE-691 over Bunker Avenue in New Haven County, Connecticut. It was built in 1971, so it is 54 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 78,500 vehicles a day, roughly 9% of them trucks, projected to reach 116,643 by 2041. The structure is 96 ft (29.3 m) long and 143 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesINTERSTATE-691
CrossesBunker Avenue
Location.58 MI West of Route 5
RouteInterstate 691
CountyNew Haven County
StateConnecticut
Coordinates41.54371, -72.79105
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span87 ft (26.5 m)
Deck width143 ft (43.5 m)
Roadway width139 ft (42.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,500 (2021)
Projected traffic116,643 by 2041
Trucks9%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was INTERSTATE-691 over Bunker Avenue built?

It was built in 1971, making it 54 years old in 2025.

What condition is INTERSTATE-691 over Bunker Avenue 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 May 2024.

How much traffic does INTERSTATE-691 over Bunker Avenue carry?

About 78,500 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is INTERSTATE-691 over Bunker Avenue?

The structure is 96 ft (29.3 m) long with a longest span of 87 ft (26.5 m) and a deck 143 ft wide.

Who owns INTERSTATE-691 over Bunker Avenue?

It is owned by the State Highway Agency.