US Bridges

Hempstead Avenue over Pines Brook

Fair

Nassau County, New York · 2.1 MI SW of Hempstead · Structure no. 000000003300040

Built
1932
93 years old, rebuilt 1985
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
25 ft
2 main spans
Daily traffic
13,828
2020 count
Owner
County
County Highway Agency

About this bridge

Hempstead Avenue over Pines Brook is a concrete slab carrying Hempstead Avenue over Pines Brook in Nassau County, New York. It was built in 1932 and reconstructed in 1985, so it is 93 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 13,828 vehicles a day, roughly 4% of them trucks, projected to reach 16,798 by 2041. The structure is 25 ft (7.6 m) long and 124 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesHempstead Avenue
CrossesPines Brook
Location2.1 MI SW of Hempstead
CountyNassau County
StateNew York
Coordinates40.68706, -73.66054
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating35.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.6 m)
Deck width124 ft (37.9 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,828 (2020)
Projected traffic16,798 by 2041
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hempstead Avenue over Pines Brook built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1985.

What condition is Hempstead Avenue over Pines Brook 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 May 2024.

How much traffic does Hempstead Avenue over Pines Brook carry?

About 13,828 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Hempstead Avenue over Pines Brook?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.6 m) and a deck 124 ft wide.

Who owns Hempstead Avenue over Pines Brook?

It is owned by the County Highway Agency.