US Bridges

Ferdon Avenue over Sparkill Creek

Fair

Rockland County, New York · 1.0 MI NE of Sparkill · Structure no. 000000003346080

Built
1935
90 years old, rebuilt 1993
Condition
Fair
inspected August 2023
Type
Slab
Wood or Timber
Length
67 ft
4 main spans
Daily traffic
3,248
2020 count
Owner
County
County Highway Agency

About this bridge

Ferdon Avenue over Sparkill Creek is a wood or timber slab carrying Ferdon Avenue over Sparkill Creek in Rockland County, New York. It was built in 1935 and reconstructed in 1993, so it is 90 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 3,248 vehicles a day, roughly 2% of them trucks, projected to reach 4,018 by 2041. The structure is 67 ft (20.4 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFerdon Avenue
CrossesSparkill Creek
Location1.0 MI NE of Sparkill
CountyRockland County
StateNew York
Coordinates41.03752, -73.91581
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating73 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 25 or greater
Structure length67 ft (20.4 m)
Longest span16 ft (4.9 m)
Deck width35 ft (10.6 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic3,248 (2020)
Projected traffic4,018 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$916,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ferdon Avenue over Sparkill Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1993.

What condition is Ferdon Avenue over Sparkill Creek 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 August 2023.

How much traffic does Ferdon Avenue over Sparkill Creek carry?

About 3,248 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Ferdon Avenue over Sparkill Creek?

The structure is 67 ft (20.4 m) long with a longest span of 16 ft (4.9 m) and a deck 35 ft wide.

Who owns Ferdon Avenue over Sparkill Creek?

It is owned by the County Highway Agency.