US Bridges

Highland Avenue over Interstate 84

Fair

New Haven County, Connecticut · 0.2 MI W of Route 8 · Structure no. 03207

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
288 ft
2 main spans
Daily traffic
15,200
2017 count
Owner
State
State Highway Agency

About this bridge

Highland Avenue over Interstate 84 is a steel continuous stringer/multi-beam or girder carrying Highland Avenue over Interstate 84 in New Haven County, Connecticut. It was built in 1966, so it is 59 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 15,200 vehicles a day, roughly 6% of them trucks, projected to reach 22,586 by 2037. The structure is 288 ft (87.8 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHighland Avenue
CrossesInterstate 84
Location0.2 MI W of Route 8
RouteCity Street 0
CountyNew Haven County
StateConnecticut
Coordinates41.55045, -73.05837
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.2 US tons
Inventory rating56.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadHS 20
Structure length288 ft (87.8 m)
Longest span112 ft (34.1 m)
Deck width52 ft (16 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,200 (2017)
Projected traffic22,586 by 2037
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Highland Avenue over Interstate 84 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Highland Avenue over Interstate 84 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 March 2023.

How much traffic does Highland Avenue over Interstate 84 carry?

About 15,200 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is Highland Avenue over Interstate 84?

The structure is 288 ft (87.8 m) long with a longest span of 112 ft (34.1 m) and a deck 52 ft wide.

Who owns Highland Avenue over Interstate 84?

It is owned by the State Highway Agency.