Structure 5511360 · Chautauqua County, NY

North RD over 90ix RTE I90

Carries North RD over 90ix RTE I90, 5.7 Mi SW Of Dunkirk Int.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT310 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 6/9

310 ft end to end, longest span 69 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built195769 years old
Length310.0 ft94.5 m
Daily traffic351counted 2021
Last inspectedJune 2024every 12 months

Location

StateNew York
CountyChautauqua
Location5.7 Mi SW Of Dunkirk Int
CarriesNorth RD
Crosses90ix RTE I90
Coordinates42.42187, -79.39996

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length310.0 ft (94.5 m)
Max Span68.9 ft (21 m)
Deck Width30.8 ft (9.4 m)
Deck Area888.3 sq m
Main Spans5
Year Built1957

Traffic

Avg Daily Traffic351 (2021)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerState Toll Authority
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number000000005511360

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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