US Bridges

Interstate 84 over Tamarack Avenue

Fair

Fairfield County, Connecticut · .3MI East of Rt 37 · Structure no. 01190

Built
1960
65 years old, rebuilt 1988
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
68 ft
1 main span
Daily traffic
120,000
2021 count
Owner
State
State Highway Agency

About this bridge

Interstate 84 over Tamarack Avenue is a steel stringer/multi-beam or girder carrying Interstate 84 over Tamarack Avenue in Fairfield County, Connecticut. It was built in 1960 and reconstructed in 1988, so it is 65 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 120,000 vehicles a day, roughly 9% of them trucks, projected to reach 178,308 by 2041. The structure is 68 ft (20.8 m) long and 139 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesInterstate 84
CrossesTamarack Avenue
Location.3MI East of Rt 37
RouteInterstate 84
Coordinates41.41186, -73.45076
Functional classUrban Principal Arterial - Interstate

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating60.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length68 ft (20.8 m)
Longest span63 ft (19.2 m)
Deck width139 ft (42.3 m)
Roadway width129 ft (39.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120,000 (2021)
Projected traffic178,308 by 2041
Trucks9%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 84 over Tamarack Avenue built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1988.

What condition is Interstate 84 over Tamarack Avenue 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 May 2024.

How much traffic does Interstate 84 over Tamarack Avenue carry?

About 120,000 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Interstate 84 over Tamarack Avenue?

The structure is 68 ft (20.8 m) long with a longest span of 63 ft (19.2 m) and a deck 139 ft wide.

Who owns Interstate 84 over Tamarack Avenue?

It is owned by the State Highway Agency.