Structure 1019250 · Suffolk County, NY

RTE 111 over 27 27 07051124 27 27

Carries RTE 111 over 27 27 07051124 27 27, Islip - SH 111 Over SH 27.

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
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT216 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

216 ft end to end, longest span 106 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 box-beam bridge.

Built198838 years old
Length215.9 ft65.8 m
Daily traffic15,679counted 2020
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountySuffolk
LocationIslip - SH 111 Over SH 27
CarriesRTE 111
Crosses27 27 07051124 27 27
Coordinates40.74224, -73.20743

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length215.9 ft (65.8 m)
Max Span106.0 ft (32.3 m)
Deck Width91.5 ft (27.9 m)
Deck Area1835.8 sq m
Main Spans2
Year Built1988

Traffic

Avg Daily Traffic15,679 (2020)
Truck Traffic6%
Lanes On Bridge6
Lanes Under Bridge10

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001019250

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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