Structure 1071922 · Chautauqua County, NY

RTE I86 over RTE 430 Bemus Creek

Carries RTE I86 over RTE 430 Bemus Creek, .8 Mile SE Of Bemus Point.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT617 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

617 ft end to end, longest span 153 ft: about 1.7 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.

Built198244 years old
Length617.1 ft188.1 m
Daily traffic7,536counted 2020
Last inspectedAugust 2023every 24 months

Location

StateNew York
CountyChautauqua
Location.8 Mile SE Of Bemus Point
CarriesRTE I86
CrossesRTE 430 Bemus Creek
Coordinates42.15252, -79.38041

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length617.1 ft (188.1 m)
Max Span152.9 ft (46.6 m)
Deck Width44.3 ft (13.5 m)
Deck Area2539.3 sq m
Main Spans5
Year Built1982

Traffic

Avg Daily Traffic7,536 (2020)
Truck Traffic20%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001071922

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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