US Bridges

Carpenter Lane over INTERSTATE-91

Fair

New Haven County, Connecticut · .54 MI North of RTE 68 · Structure no. 03133

Built
1965
60 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
311 ft
2 main spans
Daily traffic
1,645
2023 count
Owner
State
State Highway Agency

About this bridge

Carpenter Lane over INTERSTATE-91 is a steel continuous stringer/multi-beam or girder carrying Carpenter Lane over INTERSTATE-91 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 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 1,645 vehicles a day, roughly 2% of them trucks, projected to reach 2,444 by 2043. The structure is 311 ft (94.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCarpenter Lane
CrossesINTERSTATE-91
Location.54 MI North of RTE 68
RouteCity Street 0
CountyNew Haven County
StateConnecticut
Coordinates41.48828, -72.7675
Functional classUrban Local

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 inspectionAugust 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length311 ft (94.8 m)
Longest span99 ft (30.2 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,645 (2023)
Projected traffic2,444 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Carpenter Lane over INTERSTATE-91 built?

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

What condition is Carpenter Lane over INTERSTATE-91 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 August 2023.

How much traffic does Carpenter Lane over INTERSTATE-91 carry?

About 1,645 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Carpenter Lane over INTERSTATE-91?

The structure is 311 ft (94.8 m) long with a longest span of 99 ft (30.2 m) and a deck 35 ft wide.

Who owns Carpenter Lane over INTERSTATE-91?

It is owned by the State Highway Agency.