Structure 1015400 · Chautauqua County, NY

RTE 20 over Canadaway Creek

Carries RTE 20 over Canadaway Creek, 1.6 Mi SW Jct Rts 20 + 60.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT69 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

69 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 girder bridge.

Built1936rebuilt 1994
Length68.9 ft21 m
Daily traffic4,577counted 2018
Last inspectedApril 2023every 24 months

Location

StateNew York
CountyChautauqua
Location1.6 Mi SW Jct Rts 20 + 60
CarriesRTE 20
CrossesCanadaway Creek
Coordinates42.43774, -79.33369

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length68.9 ft (21 m)
Max Span66.9 ft (20.4 m)
Deck Width58.1 ft (17.7 m)
Deck Area371.7 sq m
Main Spans1
Year Built1936 (reconstructed 1994)

Traffic

Avg Daily Traffic4,577 (2018)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000001015400

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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