Structure 1049519 · Suffolk County, NY

Patchogue-holbrook over 495i 495i07031192 RTE I

Carries Patchogue-holbrook over 495i 495i07031192 RTE I, At Exit 61 0f I495.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT289 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 8/9

289 ft end to end, longest span 96 ft: about 4 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.

Built1967rebuilt 2017
Length289.0 ft88.1 m
Daily traffic23,894counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateNew York
CountySuffolk
LocationAt Exit 61 0f I495
CarriesPatchogue-holbrook
Crosses495i 495i07031192 RTE I
Coordinates40.81558, -73.08439

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length289.0 ft (88.1 m)
Max Span95.8 ft (29.2 m)
Deck Width83.3 ft (25.4 m)
Deck Area2237.7 sq m
Main Spans4
Year Built1967 (reconstructed 2017)

Traffic

Avg Daily Traffic23,894 (2021)
Truck Traffic3%
Lanes On Bridge5
Lanes Under Bridge8

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001049519

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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