US Bridges

Pearl Street over Mill River

Fair

Nassau County, New York · 1.0 MI NE East Rockaway · Structure no. 000000003300150

Built
1932
93 years old, rebuilt 1986
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
163 ft
5 main spans
Daily traffic
8,786
2021 count
Owner
County
County Highway Agency

About this bridge

Pearl Street over Mill River is a prestressed concrete continuous box beam or girders - multiple carrying Pearl Street over Mill River in Nassau County, New York. It was built in 1932 and reconstructed in 1986, 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 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 8,786 vehicles a day, roughly 2% of them trucks, projected to reach 10,870 by 2041. The structure is 163 ft (49.7 m) long and 60 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesPearl Street
CrossesMill River
Location1.0 MI NE East Rockaway
RouteCounty Highway 0
Coordinates40.64417, -73.65832
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length163 ft (49.7 m)
Longest span32 ft (9.7 m)
Deck width60 ft (18.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,786 (2021)
Projected traffic10,870 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.2 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Pearl Street over Mill River built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1986.

What condition is Pearl Street over Mill River 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 2023.

How much traffic does Pearl Street over Mill River carry?

About 8,786 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Pearl Street over Mill River?

The structure is 163 ft (49.7 m) long with a longest span of 32 ft (9.7 m) and a deck 60 ft wide.

Who owns Pearl Street over Mill River?

It is owned by the County Highway Agency.