Structure 1053060 · Westchester County, NY

Chestnut Ridge RD over 684i684i87011124 RTE I6

Carries Chestnut Ridge RD over 684i684i87011124 RTE I6, 3.9 Mi N Exit 3 Of I684.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT243 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

243 ft end to end, longest span 118 ft: about 3 semi-trucks nose to tail. 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.

Built1971rebuilt 2001
Length243.1 ft74.1 m
Daily traffic589counted 2017
Last inspectedSeptember 2024every 24 months

Location

StateNew York
CountyWestchester
Location3.9 Mi N Exit 3 Of I684
CarriesChestnut Ridge RD
Crosses684i684i87011124 RTE I6
Coordinates41.18917, -73.68788

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length243.1 ft (74.1 m)
Max Span118.1 ft (36 m)
Deck Width34.4 ft (10.5 m)
Deck Area778.0 sq m
Main Spans2
Year Built1971 (reconstructed 2001)

Traffic

Avg Daily Traffic589 (2017)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001053060

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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