Structure 5521257 · New York County, NY

RTE 9a over Edsall Avenue Palisade

Carries RTE 9a over Edsall Avenue Palisade, Jct SH 9a & Harlem River.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,876 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

1,876 ft end to end: about 5.2 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 deck arch.

Built1935rebuilt 2020
Length1876.0 ft571.8 m
Daily traffic77,015counted 2019
Last inspectedNovember 2023every 24 months

Location

StateNew York
CountyNew York
LocationJct SH 9a & Harlem River
CarriesRTE 9a
CrossesEdsall Avenue Palisade
Coordinates40.87818, -73.92151

Physical Characteristics

MaterialSteel
DesignArch - Deck
Total Length1876.0 ft (571.8 m)
Max Span839.9 ft (256 m)
Deck Width49.9 ft (15.2 m)
Deck Area8691.4 sq m
Main Spans1
Year Built1935 (reconstructed 2020)

Traffic

Avg Daily Traffic77,015 (2019)
Truck Traffic1%
Lanes On Bridge3

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000005521257

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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