US Bridges

Prospect Street over Farmington Canal Greenwa

Fair

New Haven County, Connecticut · At JCT With Trumbull ST · Structure no. 03997

Built
1929
96 years old, rebuilt 2009
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
4,600
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Prospect Street over Farmington Canal Greenwa is a prestressed concrete box beam or girders - multiple carrying Prospect Street over Farmington Canal Greenwa in New Haven County, Connecticut. It was built in 1929 and reconstructed in 2009, so it is 96 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 4,600 vehicles a day, roughly 4% of them trucks, projected to reach 6,835 by 2041. The structure is 46 ft (14 m) long and 60 ft wide.

CarriesProspect Street
CrossesFarmington Canal Greenwa
LocationAt JCT With Trumbull ST
RouteCity Street 0
Coordinates41.3138, -72.92504
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width60 ft (18.4 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2021)
Projected traffic6,835 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Prospect Street over Farmington Canal Greenwa built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 2009.

What condition is Prospect Street over Farmington Canal Greenwa 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 September 2023.

How much traffic does Prospect Street over Farmington Canal Greenwa carry?

About 4,600 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Prospect Street over Farmington Canal Greenwa?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 60 ft wide.

Who owns Prospect Street over Farmington Canal Greenwa?

It is owned by the City or Municipal Highway Agency.