US Bridges

West Clarkstown Ro over RTE 987C

Fair

Rockland County, New York · 2.5 MI N JCT Pip+rte 304 · Structure no. 000000001068730

Built
1953
72 years old
Condition
Fair
inspected October 2024
Type
Arch - Deck
Concrete
Length
64 ft
1 main span
Daily traffic
5,742
2016 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

West Clarkstown Ro over RTE 987C is a concrete arch - deck carrying West Clarkstown Ro over RTE 987C in Rockland County, New York. It was built in 1953, so it is 72 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 5,742 vehicles a day, roughly 3% of them trucks, projected to reach 6,975 by 2041. The structure is 64 ft (19.5 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesWest Clarkstown Ro
CrossesRTE 987C
Location2.5 MI N JCT Pip+rte 304
RouteCounty Highway 0
CountyRockland County
StateNew York
Coordinates41.13799, -74.01751
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating61.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length64 ft (19.5 m)
Longest span55 ft (16.7 m)
Deck width47 ft (14.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,742 (2016)
Projected traffic6,975 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$4.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was West Clarkstown Ro over RTE 987C built?

It was built in 1953, making it 72 years old in 2025.

What condition is West Clarkstown Ro over RTE 987C 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 2024.

How much traffic does West Clarkstown Ro over RTE 987C carry?

About 5,742 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is West Clarkstown Ro over RTE 987C?

The structure is 64 ft (19.5 m) long with a longest span of 55 ft (16.7 m) and a deck 47 ft wide.

Who owns West Clarkstown Ro over RTE 987C?

It is owned by the State Park, Forest, or Reservation Agency and maintained by the State Highway Agency.