Structure 1094750 · Clinton County, NY

RTE 972b over RTE I87 RTE I87

Carries RTE 972b over RTE I87 RTE I87, Jct I87 & SH 3 Ramp.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT232 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 6/9 · sets the rating

232 ft end to end, longest span 113 ft: about 3 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.

Built197353 years old
Length232.0 ft70.7 m
Daily traffic1,914counted 2016
Last inspectedJuly 2024every 24 months

Location

StateNew York
CountyClinton
LocationJct I87 & SH 3 Ramp
CarriesRTE 972b
CrossesRTE I87 RTE I87
Coordinates44.69225, -73.49133

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length232.0 ft (70.7 m)
Max Span112.9 ft (34.4 m)
Deck Width57.1 ft (17.4 m)
Deck Area1230.2 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic1,914 (2016)
Truck Traffic17%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001094750

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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