US Bridges

INTERSTATE-691 EB over US Route 5

Fair

New Haven County, Connecticut · 1.3 MI W of I-91 · Structure no. 02340

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
40,700
2021 count
Owner
State
State Highway Agency

About this bridge

INTERSTATE-691 EB over US Route 5 is a prestressed concrete stringer/multi-beam or girder carrying INTERSTATE-691 EB over US Route 5 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 40,700 vehicles a day, roughly 9% of them trucks, projected to reach 60,476 by 2041. The structure is 74 ft (22.6 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesINTERSTATE-691 EB
CrossesUS Route 5
Location1.3 MI W of I-91
RouteInterstate 691
CountyNew Haven County
StateConnecticut
Coordinates41.54266, -72.78577
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating58.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span70 ft (21.3 m)
Deck width66 ft (20 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,700 (2021)
Projected traffic60,476 by 2041
Trucks9%
Lanes on structure4
Traffic directionOne-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 EB over US Route 5 built?

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

What condition is INTERSTATE-691 EB over US Route 5 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 EB over US Route 5 carry?

About 40,700 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is INTERSTATE-691 EB over US Route 5?

The structure is 74 ft (22.6 m) long with a longest span of 70 ft (21.3 m) and a deck 66 ft wide.

Who owns INTERSTATE-691 EB over US Route 5?

It is owned by the State Highway Agency.