US Bridges

RTE I678 over North Conduit Ave

Fair

Queens County, New York · 1.1 MI E JCT I678 & SH 27 · Structure no. 000000001076380

Built
1967
58 years old, rebuilt 1996
Condition
Fair
inspected May 2024
Type
Girder and Floorbeam System
Steel
Length
134 ft
1 main span
Daily traffic
—
2018 count
Owner
State
State Highway Agency

About this bridge

RTE I678 over North Conduit Ave is a steel girder and floorbeam system carrying RTE I678 over North Conduit Ave in Queens County, New York. It was built in 1967 and reconstructed in 1996, so it is 58 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

No traffic count is recorded. The structure is 134 ft (40.8 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE I678
CrossesNorth Conduit Ave
Location1.1 MI E JCT I678 & SH 27
RouteInterstate 678
CountyQueens County
StateNew York
Coordinates40.66673, -73.79798
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating33 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span130 ft (39.6 m)
Deck width45 ft (13.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$11.8 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I678 over North Conduit Ave built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1996.

What condition is RTE I678 over North Conduit Ave 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 RTE I678 over North Conduit Ave carry?

No traffic count is recorded for this structure.

How long is RTE I678 over North Conduit Ave?

The structure is 134 ft (40.8 m) long with a longest span of 130 ft (39.6 m) and a deck 45 ft wide.

Who owns RTE I678 over North Conduit Ave?

It is owned by the State Highway Agency.