Structure 2207630 · Cortland County, NY

Tone RD over Gridley Creek

Carries Tone RD over Gridley Creek, 3.7 Miles East Of Virgil.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

37 ft end to end. Lengths and the car 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.

Built196066 years old
Length37.1 ft11.3 m
Daily traffic7counted 2017
Last inspectedJune 2024every 12 months

Location

StateNew York
CountyCortland
Location3.7 Miles East Of Virgil
CarriesTone RD
CrossesGridley Creek
Coordinates42.50145, -76.12741

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length37.1 ft (11.3 m)
Max Span34.8 ft (10.6 m)
Deck Width15.7 ft (4.8 m)
Deck Area54.2 sq m
Main Spans1
Year Built1960

Traffic

Avg Daily Traffic7 (2017)
Truck Traffic9%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000002207630

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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