US Bridges

I-84 Eastbound over Housatonic River

Good

Fairfield County, Connecticut · Over Housatonic River · Structure no. 01218

Built
1953
72 years old, rebuilt 2023
Condition
Good
inspected September 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
792 ft
4 main spans
Daily traffic
76,300
2018 count
Owner
State
State Highway Agency

About this bridge

I-84 Eastbound over Housatonic River is a steel continuous girder and floorbeam system carrying I-84 Eastbound over Housatonic River in Fairfield County, Connecticut. It was built in 1953 and reconstructed in 2023, so it is 72 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 76,300 vehicles a day, roughly 9% of them trucks, projected to reach 113,374 by 2038. The structure is 792 ft (241.4 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-84 Eastbound
CrossesHousatonic River
LocationOver Housatonic River
RouteInterstate 84
Coordinates41.43917, -73.2475
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.8 US tons
Inventory rating54.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length792 ft (241.4 m)
Longest span224 ft (68.3 m)
Deck width71 ft (21.7 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,300 (2018)
Projected traffic113,374 by 2038
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$30 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-84 Eastbound over Housatonic River built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2023.

What condition is I-84 Eastbound over Housatonic River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does I-84 Eastbound over Housatonic River carry?

About 76,300 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is I-84 Eastbound over Housatonic River?

The structure is 792 ft (241.4 m) long with a longest span of 224 ft (68.3 m) and a deck 71 ft wide.

Who owns I-84 Eastbound over Housatonic River?

It is owned by the State Highway Agency.