Structure 1049374 · Suffolk County, NY

RTE 906a over Crooked Hill RD

Carries RTE 906a over Crooked Hill RD, 2.9 Mi E Jct Sh231 & I495.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT84 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

84 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 multi-beam bridge.

Built199135 years old
Length84.0 ft25.6 m
Daily traffic13,352counted 2020
Last inspectedApril 2023every 24 months

Location

StateNew York
CountySuffolk
Location2.9 Mi E Jct Sh231 & I495
CarriesRTE 906a
CrossesCrooked Hill RD
Coordinates40.80460, -73.28737

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length84.0 ft (25.6 m)
Max Span78.7 ft (24 m)
Deck Width54.5 ft (16.6 m)
Deck Area425.0 sq m
Main Spans1
Year Built1991

Traffic

Avg Daily Traffic13,352 (2020)
Truck Traffic9%
Lanes On Bridge3
Lanes Under Bridge3

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001049374

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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