Structure 1056220 · Suffolk County, NY

RTE I495 over County Route 58 County

Carries RTE I495 over County Route 58 County, 0.3 Mi NE RTE 495+rte 25.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT197 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

197 ft end to end: 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.

Built197254 years old
Length196.9 ft60 m
Daily traffic9,469counted 2020
Last inspectedAugust 2024every 24 months

Location

StateNew York
CountySuffolk
Location0.3 Mi NE RTE 495+rte 25
CarriesRTE I495
CrossesCounty Route 58 County
Coordinates40.92278, -72.71978

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length196.9 ft (60 m)
Max Span190.0 ft (57.9 m)
Deck Width60.4 ft (18.4 m)
Deck Area1,104 sq m
Main Spans1
Year Built1972

Traffic

Avg Daily Traffic9,469 (2020)
Truck Traffic5%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001056220

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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