US Bridges

Rosedale Road over Watts Brook

Fair

Nassau County, New York · 1.4 MI SW Valley Stream · Structure no. 000000003300380

Built
1961
64 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
10,252
2019 count
Owner
County
County Highway Agency

About this bridge

Rosedale Road over Watts Brook is a concrete continuous culvert carrying Rosedale Road over Watts Brook in Nassau County, New York. It was built in 1961, so it is 64 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 10,252 vehicles a day, roughly 2% of them trucks, projected to reach 12,454 by 2041. The structure is 31 ft (9.4 m) long and 74 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesRosedale Road
CrossesWatts Brook
Location1.4 MI SW Valley Stream
RouteCounty Highway 0
CountyNassau County
StateNew York
Coordinates40.6526, -73.72267
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width74 ft (22.6 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,252 (2019)
Projected traffic12,454 by 2041
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 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$2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rosedale Road over Watts Brook built?

It was built in 1961, making it 64 years old in 2025.

What condition is Rosedale Road over Watts 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 April 2024.

How much traffic does Rosedale Road over Watts Brook carry?

About 10,252 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Rosedale Road over Watts Brook?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m) and a deck 74 ft wide.

Who owns Rosedale Road over Watts Brook?

It is owned by the County Highway Agency.