Structure 107086C · Rensselaer County, NY

RTE I787 over 6th AVE Extention Earl

Carries RTE I787 over 6th AVE Extention Earl, City Of Troy.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,093 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

1,093 ft end to end, longest span 220 ft: about 3.0 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 multi-beam bridge.

Built198145 years old
Length1092.8 ft333.1 m
Daily traffic49,027counted 2015
Last inspectedNovember 2024every 24 months

Location

StateNew York
CountyRensselaer
LocationCity Of Troy
CarriesRTE I787
Crosses6th AVE Extention Earl
Coordinates42.73980, -73.68584

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1092.8 ft (333.1 m)
Max Span219.8 ft (67 m)
Deck Width63.3 ft (19.3 m)
Deck Area6428.8 sq m
Main Spans7
Year Built1981

Traffic

Avg Daily Traffic49,027 (2015)
Truck Traffic9%
Lanes On Bridge4
Lanes Under Bridge12

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number00000000107086C

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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