US Bridges

Sixth Avenue over Long Island-Atl B

Fair

Kings County, New York · At Park Slope · Structure no. 000000002243280

Built
1908
117 years old, rebuilt 1983
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
202 ft
6 main spans
Daily traffic
5,144
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sixth Avenue over Long Island-Atl B is a steel stringer/multi-beam or girder carrying Sixth Avenue over Long Island-Atl B in Kings County, New York. It was built in 1908 and reconstructed in 1983, so it is 117 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 5,144 vehicles a day, roughly 4% of them trucks, projected to reach 10,094 by 2041. The structure is 202 ft (61.6 m) long and 62 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSixth Avenue
CrossesLong Island-Atl B
LocationAt Park Slope
RouteCity Street 0
Coordinates40.68261, -73.97384
Functional classUrban Collector

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.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

MaterialSteel
DeckNot applicable
Main spans6 (+3 approach)
Design loadUnknown
Structure length202 ft (61.6 m)
Longest span38 ft (11.5 m)
Deck width62 ft (18.9 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,144 (2014)
Projected traffic10,094 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-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$12.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sixth Avenue over Long Island-Atl B built?

It was built in 1908, making it 117 years old in 2025. It was reconstructed in 1983.

What condition is Sixth Avenue over Long Island-Atl B 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 December 2024.

How much traffic does Sixth Avenue over Long Island-Atl B carry?

About 5,144 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is Sixth Avenue over Long Island-Atl B?

The structure is 202 ft (61.6 m) long with a longest span of 38 ft (11.5 m) and a deck 62 ft wide.

Who owns Sixth Avenue over Long Island-Atl B?

It is owned by the City or Municipal Highway Agency.