US Bridges

20th Ave over RTE I678 RTE I678

Fair

Queens County, New York · 1.5 MI NE I678 & SH 25A · Structure no. 000000001065190

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
158 ft
2 main spans
Daily traffic
20,833
2017 count
Owner
State
State Highway Agency

About this bridge

20th Ave over RTE I678 RTE I678 is a steel stringer/multi-beam or girder carrying 20th Ave over RTE I678 RTE I678 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 20,833 vehicles a day, roughly 9% of them trucks, projected to reach 25,307 by 2041. The structure is 158 ft (48.2 m) long and 84 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
Carries20th Ave
CrossesRTE I678 RTE I678
Location1.5 MI NE I678 & SH 25A
RouteCity Street 0
CountyQueens County
StateNew York
Coordinates40.7817, -73.82499
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length158 ft (48.2 m)
Longest span76 ft (23.1 m)
Deck width84 ft (25.7 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,833 (2017)
Projected traffic25,307 by 2041
Trucks9%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$14.8 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 20th Ave over RTE I678 RTE I678 built?

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

What condition is 20th Ave over RTE I678 RTE I678 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 April 2024.

How much traffic does 20th Ave over RTE I678 RTE I678 carry?

About 20,833 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is 20th Ave over RTE I678 RTE I678?

The structure is 158 ft (48.2 m) long with a longest span of 76 ft (23.1 m) and a deck 84 ft wide.

Who owns 20th Ave over RTE I678 RTE I678?

It is owned by the State Highway Agency.