US Bridges

Route 15 over SR 707(WHITNEY Ave.)

FairPosted for load

New Haven County, Connecticut · 1.3 MI East of Route 10 · Structure no. 00658

Built
1946
79 years old, rebuilt 1990
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
126 ft
1 main span
Daily traffic
67,800
2022 count
Owner
State
State Highway Agency

About this bridge

Route 15 over SR 707(WHITNEY Ave.) is a steel stringer/multi-beam or girder carrying Route 15 over SR 707(WHITNEY Ave.) in New Haven County, Connecticut. It was built in 1946 and reconstructed in 1990, so it is 79 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. Its operating status is: posted for other load-capacity restriction.

It carries about 67,800 vehicles a day, roughly 1% of them trucks, projected to reach 100,744 by 2042. The structure is 126 ft (38.4 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 15
CrossesSR 707(WHITNEY Ave.)
Location1.3 MI East of Route 10
RouteState Highway 15
CountyNew Haven County
StateConnecticut
Coordinates41.3791, -72.90344
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span119 ft (36.3 m)
Deck width77 ft (23.5 m)
Roadway width71 ft (21.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,800 (2022)
Projected traffic100,744 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Route 15 over SR 707(WHITNEY Ave.) built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1990.

What condition is Route 15 over SR 707(WHITNEY Ave.) 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 Route 15 over SR 707(WHITNEY Ave.) carry?

About 67,800 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route 15 over SR 707(WHITNEY Ave.)?

The structure is 126 ft (38.4 m) long with a longest span of 119 ft (36.3 m) and a deck 77 ft wide.

Who owns Route 15 over SR 707(WHITNEY Ave.)?

It is owned by the State Highway Agency.