US Bridges

RTE 9W over Ferdon Avenue Sparkill

Good

Rockland County, New York · JCT US 9W & Sparkill Crk · Structure no. 000000001007070

Built
2002
23 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,193 ft
14 main spans
Daily traffic
6,903
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 9W over Ferdon Avenue Sparkill is a steel continuous stringer/multi-beam or girder carrying RTE 9W over Ferdon Avenue Sparkill in Rockland County, New York. It was built in 2002, so it is 23 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,903 vehicles a day, roughly 7% of them trucks, projected to reach 6,935 by 2041. The structure is 1,193 ft (363.5 m) long and 37 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 9W
CrossesFerdon Avenue Sparkill
LocationJCT US 9W & Sparkill Crk
RouteU.S. Route 9W
Coordinates41.0318, -73.92606
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating82 US tons

Structure

MaterialSteel Continuous
DeckSteel plate
Main spans14
Design loadHS 25 or greater
Structure length1,193 ft (363.5 m)
Longest span90 ft (27.4 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,903 (2020)
Projected traffic6,935 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$32.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 9W over Ferdon Avenue Sparkill built?

It was built in 2002, making it 23 years old in 2025.

What condition is RTE 9W over Ferdon Avenue Sparkill in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does RTE 9W over Ferdon Avenue Sparkill carry?

About 6,903 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is RTE 9W over Ferdon Avenue Sparkill?

The structure is 1,193 ft (363.5 m) long with a longest span of 90 ft (27.4 m) and a deck 37 ft wide.

Who owns RTE 9W over Ferdon Avenue Sparkill?

It is owned by the State Highway Agency.