US Bridges

INTERSTATE-691 WB over Gravel Street

Fair

New Haven County, Connecticut · .31 East of Exit Route 5 · Structure no. 03045

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
37,200
2021 count
Owner
State
State Highway Agency

About this bridge

INTERSTATE-691 WB over Gravel Street is a steel stringer/multi-beam or girder carrying INTERSTATE-691 WB over Gravel Street 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 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 37,200 vehicles a day, roughly 9% of them trucks, projected to reach 55,275 by 2041. The structure is 63 ft (19.2 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesINTERSTATE-691 WB
CrossesGravel Street
Location.31 East of Exit Route 5
RouteInterstate 691
Coordinates41.54083, -72.77398
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
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 rating103.9 US tons
Inventory rating61.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length63 ft (19.2 m)
Longest span56 ft (17.1 m)
Deck width55 ft (16.9 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,200 (2021)
Projected traffic55,275 by 2041
Trucks9%
Lanes on structure3
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 WB over Gravel Street built?

It was built in 1965, making it 60 years old in 2025.

What condition is INTERSTATE-691 WB over Gravel Street 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 April 2024.

How much traffic does INTERSTATE-691 WB over Gravel Street carry?

About 37,200 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is INTERSTATE-691 WB over Gravel Street?

The structure is 63 ft (19.2 m) long with a longest span of 56 ft (17.1 m) and a deck 55 ft wide.

Who owns INTERSTATE-691 WB over Gravel Street?

It is owned by the State Highway Agency.