US Bridges

147th Street over LIRR Port Wash Br Line

Fair

Queens County, New York · In Flushing · Structure no. 000000002247070

Built
1913
112 years old, rebuilt 1987
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
1,970
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

147th Street over LIRR Port Wash Br Line is a prestressed concrete box beam or girders - multiple carrying 147th Street over LIRR Port Wash Br Line in Queens County, New York. It was built in 1913 and reconstructed in 1987, so it is 112 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 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 1,970 vehicles a day, roughly 3% of them trucks, projected to reach 2,758 by 2039. The structure is 55 ft (16.8 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries147th Street
CrossesLIRR Port Wash Br Line
LocationIn Flushing
RouteCity Street 0
Coordinates40.762, -73.81831
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating51 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width52 ft (16 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,970 (2019)
Projected traffic2,758 by 2039
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$4.9 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 147th Street over LIRR Port Wash Br Line built?

It was built in 1913, making it 112 years old in 2025. It was reconstructed in 1987.

What condition is 147th Street over LIRR Port Wash Br Line 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 July 2023.

How much traffic does 147th Street over LIRR Port Wash Br Line carry?

About 1,970 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is 147th Street over LIRR Port Wash Br Line?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 52 ft wide.

Who owns 147th Street over LIRR Port Wash Br Line?

It is owned by the City or Municipal Highway Agency.