Structure 2267718 · New York County, NY

79th ST Trfic Crl over 79st Bt Basin Grg 79 ST

Carries 79th ST Trfic Crl over 79st Bt Basin Grg 79 ST, 79 ST Boat Basin.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT636 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

636 ft end to end, longest span 26 ft: about 1.8 football fields. 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 girder bridge.

Built193591 years old
Length636.2 ft193.9 m
Daily traffic10,238counted 2019
Last inspectedMarch 2024every 24 months

Location

StateNew York
CountyNew York
Location79 ST Boat Basin
Carries79th ST Trfic Crl
Crosses79st Bt Basin Grg 79 ST
Coordinates40.78588, -73.98439

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length636.2 ft (193.9 m)
Max Span25.9 ft (7.9 m)
Deck Width38.1 ft (11.6 m)
Deck Area2249.2 sq m
Main Spans16
Year Built1935

Traffic

Avg Daily Traffic10,238 (2019)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number000000002267718

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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