Structure 5500709 · Westchester County, NY

RTE 987d over Saw Mill River

Carries RTE 987d over Saw Mill River, 2.5 Mi S Jct Rts Smrp&i87.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT67 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 8/9

67 ft end to end. Lengths and the car 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 box-beam bridge.

Built199333 years old
Length66.9 ft20.4 m
Daily traffic43,153counted 2021
Last inspectedApril 2023every 24 months

Location

StateNew York
CountyWestchester
Location2.5 Mi S Jct Rts Smrp&i87
CarriesRTE 987d
CrossesSaw Mill River
Coordinates41.00957, -73.85261

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length66.9 ft (20.4 m)
Max Span61.7 ft (18.8 m)
Deck Width67.6 ft (20.6 m)
Deck Area420.2 sq m
Main Spans1
Year Built1993

Traffic

Avg Daily Traffic43,153 (2021)
Truck Traffic1%
Lanes On Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000005500709

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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