Structure 1090020 · Cattaraugus County, NY

Underwood Road over 86i 17 51125064 RTE I86

Carries Underwood Road over 86i 17 51125064 RTE I86, 0.7 Mi E Jct Rts 17 + 16.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT256 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 8/9

256 ft end to end, longest span 126 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.

Built1972rebuilt 2007
Length255.9 ft78 m
Daily traffic291counted 2021
Last inspectedOctober 2024every 24 months

Location

StateNew York
CountyCattaraugus
Location0.7 Mi E Jct Rts 17 + 16
CarriesUnderwood Road
Crosses86i 17 51125064 RTE I86
Coordinates42.17830, -78.37205

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length255.9 ft (78 m)
Max Span126.0 ft (38.4 m)
Deck Width32.2 ft (9.8 m)
Deck Area764.4 sq m
Main Spans2
Year Built1972 (reconstructed 2007)

Traffic

Avg Daily Traffic291 (2021)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001090020

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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