US Bridges

Huntingdon Avenue over Naugatuck River

Fair

New Haven County, Connecticut · Near Exit 36 Route 8 NB · Structure no. 03729

Built
1971
54 years old, rebuilt 1991
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
157 ft
2 main spans
Daily traffic
23,800
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Huntingdon Avenue over Naugatuck River is a steel stringer/multi-beam or girder carrying Huntingdon Avenue over Naugatuck River in New Haven County, Connecticut. It was built in 1971 and reconstructed in 1991, so it is 54 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 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 23,800 vehicles a day, roughly 4% of them trucks, projected to reach 35,364 by 2043. The structure is 157 ft (48 m) long and 59 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHuntingdon Avenue
CrossesNaugatuck River
LocationNear Exit 36 Route 8 NB
RouteCity Street 0
Coordinates41.58458, -73.05327
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating60 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length157 ft (48 m)
Longest span79 ft (24 m)
Deck width59 ft (18 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,800 (2023)
Projected traffic35,364 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Huntingdon Avenue over Naugatuck River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1991.

What condition is Huntingdon Avenue over Naugatuck River 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 November 2024.

How much traffic does Huntingdon Avenue over Naugatuck River carry?

About 23,800 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Huntingdon Avenue over Naugatuck River?

The structure is 157 ft (48 m) long with a longest span of 79 ft (24 m) and a deck 59 ft wide.

Who owns Huntingdon Avenue over Naugatuck River?

It is owned by the City or Municipal Highway Agency.