Structure 1032852 · Saratoga County, NY

RTE I87 over RTE 146

Carries RTE I87 over RTE 146, Route I-87 Exit 9.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT161 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

161 ft end to end, longest span 88 ft: about 2 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 multi-beam bridge.

Built1958rebuilt 1978
Length161.1 ft49.1 m
Daily traffic45,252counted 2021
Last inspectedJuly 2023every 24 months

Location

StateNew York
CountySaratoga
LocationRoute I-87 Exit 9
CarriesRTE I87
CrossesRTE 146
Coordinates42.86239, -73.77517

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length161.1 ft (49.1 m)
Max Span87.9 ft (26.8 m)
Deck Width62.0 ft (18.9 m)
Deck Area928.0 sq m
Main Spans3
Year Built1958 (reconstructed 1978)

Traffic

Avg Daily Traffic45,252 (2021)
Truck Traffic10%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001032852

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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