Structure 1032031 · Jefferson County, NY

RTE I81 over South Sandy Creek

Carries RTE I81 over South Sandy Creek, 2.7 Mi S Jct 178 + I-81.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT297 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 5/9

297 ft end to end, longest span 113 ft: about 4 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.

Built1961rebuilt 1991
Length296.9 ft90.5 m
Daily traffic9,336counted 2009
Last inspectedJuly 2023every 24 months

Location

StateNew York
CountyJefferson
Location2.7 Mi S Jct 178 + I-81
CarriesRTE I81
CrossesSouth Sandy Creek
Coordinates43.77447, -76.04594

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length296.9 ft (90.5 m)
Max Span112.9 ft (34.4 m)
Deck Width34.1 ft (10.4 m)
Deck Area941.2 sq m
Main Spans3
Year Built1961 (reconstructed 1991)

Traffic

Avg Daily Traffic9,336 (2009)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000001032031

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.

Nearby Bridges