Structure 6600159 · Cattaraugus County, NY

RTE I86 over Allegheny River

Carries RTE I86 over Allegheny River, 1.1 Mi W Jct US 219 & I86.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT912 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

912 ft end to end, longest span 178 ft: about 2.5 football fields. 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.

Built1986rebuilt 2018
Length912.1 ft278 m
Daily traffic9,200counted 2019
Last inspectedAugust 2024every 24 months

Location

StateNew York
CountyCattaraugus
Location1.1 Mi W Jct US 219 & I86
CarriesRTE I86
CrossesAllegheny River
Coordinates42.09238, -78.65060

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length912.1 ft (278 m)
Max Span177.8 ft (54.2 m)
Deck Width81.4 ft (24.8 m)
Deck Area6894.4 sq m
Main Spans6
Year Built1986 (reconstructed 2018)

Traffic

Avg Daily Traffic9,200 (2019)
Truck Traffic18%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000006600159

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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