Structure 5511480 · Chautauqua County, NY

RTE I90 over Beaver Creek

Carries RTE I90 over Beaver Creek, 3.2 Mi NE Of Dunkirk Int.

Overall conditionFair

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

How ratings work
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 5/9 · sets the ratingSubstructure 6/9

37 ft end to end, longest span 16 ft. 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.

Built195670 years old
Length37.1 ft11.3 m
Daily traffic22,749counted 2020
Last inspectedJuly 2023every 24 months

Location

StateNew York
CountyChautauqua
Location3.2 Mi NE Of Dunkirk Int
CarriesRTE I90
CrossesBeaver Creek
Coordinates42.48642, -79.25306

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length37.1 ft (11.3 m)
Max Span16.1 ft (4.9 m)
Deck Width148.0 ft (45.1 m)
Deck Area509.6 sq m
Main Spans2
Year Built1956

Traffic

Avg Daily Traffic22,749 (2020)
Truck Traffic40%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000005511480

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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