US Bridges

RTE I678 over RTE I495 Flushing River

Fair

Queens County, New York · JCT I495 & I678 · Structure no. 00000000105578B

Built
1963
62 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
1,327 ft
21 main spans
Daily traffic
15,768
2020 count
Owner
State
State Highway Agency

About this bridge

RTE I678 over RTE I495 Flushing River is a steel stringer/multi-beam or girder carrying RTE I678 over RTE I495 Flushing River in Queens County, New York. It was built in 1963, so it is 62 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.

It carries about 15,768 vehicles a day, roughly 8% of them trucks, projected to reach 20,148 by 2041. The structure is 1,327 ft (404.5 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I678
CrossesRTE I495 Flushing River
LocationJCT I495 & I678
RouteInterstate 678
CountyQueens County
StateNew York
Coordinates40.74348, -73.83678
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans21
Design loadHS 20
Structure length1,327 ft (404.5 m)
Longest span96 ft (29.2 m)
Deck width26 ft (8 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic15,768 (2020)
Projected traffic20,148 by 2041
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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$25.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I678 over RTE I495 Flushing River built?

It was built in 1963, making it 62 years old in 2025.

What condition is RTE I678 over RTE I495 Flushing 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 September 2023.

How much traffic does RTE I678 over RTE I495 Flushing River carry?

About 15,768 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is RTE I678 over RTE I495 Flushing River?

The structure is 1,327 ft (404.5 m) long with a longest span of 96 ft (29.2 m) and a deck 26 ft wide.

Who owns RTE I678 over RTE I495 Flushing River?

It is owned by the State Highway Agency.