Structure 1007070 · Rockland County, NY

RTE 9w over Ferdon Avenue Sparkill

Carries RTE 9w over Ferdon Avenue Sparkill, Jct US 9w & Sparkill Crk.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,193 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

1,193 ft end to end, longest span 90 ft: about 3.3 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built200224 years old
Length1192.6 ft363.5 m
Daily traffic6,903counted 2020
Last inspectedNovember 2024every 24 months

Location

StateNew York
CountyRockland
LocationJct US 9w & Sparkill Crk
CarriesRTE 9w
CrossesFerdon Avenue Sparkill
Coordinates41.03180, -73.92606

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1192.6 ft (363.5 m)
Max Span89.9 ft (27.4 m)
Deck Width37.4 ft (11.4 m)
Deck Area4143.9 sq m
Main Spans14
Year Built2002

Traffic

Avg Daily Traffic6,903 (2020)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000001007070

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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