Structure 3307540 · Herkimer County, NY

Johnnycake RD over Cornish Creek

Carries Johnnycake RD over Cornish Creek, 2.8 Mi NE Of Paines Hllow.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 8/9

40 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 rigid-frame bridge.

Built199135 years old
Length40.0 ft12.2 m
Daily traffic183counted 2018
Last inspectedApril 2023every 24 months

Location

StateNew York
CountyHerkimer
Location2.8 Mi NE Of Paines Hllow
CarriesJohnnycake RD
CrossesCornish Creek
Coordinates42.97128, -74.84763

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length40.0 ft (12.2 m)
Max Span36.7 ft (11.2 m)
Deck Width24.3 ft (7.4 m)
Deck Area90.3 sq m
Main Spans1
Year Built1991

Traffic

Avg Daily Traffic183 (2018)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000003307540

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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