US Bridges

New Dorp Lane over Sirt South Shore

Fair

Richmond County, New York · In New Dorp · Structure no. 000000002249430

Built
1952
73 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
76 ft
2 main spans
Daily traffic
10,514
2016 count
Owner
Local
Other Local Agency

About this bridge

New Dorp Lane over Sirt South Shore is a steel stringer/multi-beam or girder carrying New Dorp Lane over Sirt South Shore in Richmond County, New York. It was built in 1952, so it is 73 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 10,514 vehicles a day, roughly 3% of them trucks, projected to reach 12,772 by 2041. The structure is 76 ft (23.2 m) long and 100 ft wide.

Location

Open in Google Maps
CarriesNew Dorp Lane
CrossesSirt South Shore
LocationIn New Dorp
RouteCity Street 0
CountyRichmond County
StateNew York
Coordinates40.57403, -74.11642
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length76 ft (23.2 m)
Longest span40 ft (12.1 m)
Deck width100 ft (30.5 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,514 (2016)
Projected traffic12,772 by 2041
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$9.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was New Dorp Lane over Sirt South Shore built?

It was built in 1952, making it 73 years old in 2025.

What condition is New Dorp Lane over Sirt South Shore 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 October 2023.

How much traffic does New Dorp Lane over Sirt South Shore carry?

About 10,514 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is New Dorp Lane over Sirt South Shore?

The structure is 76 ft (23.2 m) long with a longest span of 40 ft (12.1 m) and a deck 100 ft wide.

Who owns New Dorp Lane over Sirt South Shore?

It is owned by the Other Local Agency.