Structure 3329960 · Allegany County, NY

County Road 12 over Elm Valley Crk

Carries County Road 12 over Elm Valley Crk, 0.4 Mi N Of Elm Valley.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT51 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

51 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.

Built1956rebuilt 1984
Length50.9 ft15.5 m
Daily traffic985counted 2018
Last inspectedMarch 2024every 24 months

Location

StateNew York
CountyAllegany
Location0.4 Mi N Of Elm Valley
CarriesCounty Road 12
CrossesElm Valley Crk
Coordinates42.15749, -77.85835

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length50.9 ft (15.5 m)
Max Span49.9 ft (15.2 m)
Deck Width36.1 ft (11 m)
Deck Area170.5 sq m
Main Spans1
Year Built1956 (reconstructed 1984)

Traffic

Avg Daily Traffic985 (2018)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000003329960

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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