Structure 1058811 · Suffolk County, NY

RTE 908j over Great South Bay

Carries RTE 908j over Great South Bay, At Fire Island Inlet.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
10,519 FT OVERALL2,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

10,519 ft end to end, longest span 600 ft: about 29 football fields, or 2.0 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 through truss.

Built1951rebuilt 2000
Length10519.0 ft3206.2 m
Daily traffic8,443counted 2021
Last inspectedDecember 2024every 24 months

Location

StateNew York
CountySuffolk
LocationAt Fire Island Inlet
CarriesRTE 908j
CrossesGreat South Bay
Coordinates40.65935, -73.26481

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length10519.0 ft (3206.2 m)
Max Span600.1 ft (182.9 m)
Deck Width29.5 ft (9 m)
Deck Area28855.8 sq m
Main Spans3
Year Built1951 (reconstructed 2000)

Traffic

Avg Daily Traffic8,443 (2021)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000001058811

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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