Structure 1058350 · Suffolk County, NY

Carman Road over RTE 908g

Carries Carman Road over RTE 908g, 1.9 Mi NE Jct RTE 110+nsp.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

55 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 rigid-frame bridge.

Built194977 years old
Length55.1 ft16.8 m
Daily traffic4,093counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateNew York
CountySuffolk
Location1.9 Mi NE Jct RTE 110+nsp
CarriesCarman Road
CrossesRTE 908g
Coordinates40.80712, -73.38063

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length55.1 ft (16.8 m)
Max Span47.9 ft (14.6 m)
Deck Width43.0 ft (13.1 m)
Deck Area220.1 sq m
Main Spans1
Year Built1949

Traffic

Avg Daily Traffic4,093 (2021)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001058350

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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