US Bridges

Route 40 SB over Route 15 (wilbur Cross)

Fair

New Haven County, Connecticut · 1.8 Miles North of I-91 · Structure no. 03828

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
208 ft
2 main spans
Daily traffic
11,700
2019 count
Owner
State
State Highway Agency

About this bridge

Route 40 SB over Route 15 (wilbur Cross) is a prestressed concrete stringer/multi-beam or girder carrying Route 40 SB over Route 15 (wilbur Cross) in New Haven County, Connecticut. It was built in 1976, so it is 49 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 5 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 11,700 vehicles a day, roughly 6% of them trucks, projected to reach 17,385 by 2039. The structure is 208 ft (63.4 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 40 SB
CrossesRoute 15 (wilbur Cross)
Location1.8 Miles North of I-91
RouteState Highway 40
CountyNew Haven County
StateConnecticut
Coordinates41.38671, -72.88581
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length208 ft (63.4 m)
Longest span103 ft (31.4 m)
Deck width50 ft (15.2 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,700 (2019)
Projected traffic17,385 by 2039
Trucks6%
Lanes on structure2
Traffic directionOne-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 40 SB over Route 15 (wilbur Cross) built?

It was built in 1976, making it 49 years old in 2025.

What condition is Route 40 SB over Route 15 (wilbur Cross) 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 July 2023.

How much traffic does Route 40 SB over Route 15 (wilbur Cross) carry?

About 11,700 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Route 40 SB over Route 15 (wilbur Cross)?

The structure is 208 ft (63.4 m) long with a longest span of 103 ft (31.4 m) and a deck 50 ft wide.

Who owns Route 40 SB over Route 15 (wilbur Cross)?

It is owned by the State Highway Agency.