Structure 6046330 · Cattaraugus County, NY

RTE 353 over Allegheny River

Carries RTE 353 over Allegheny River, Jct RTE 353 + Allegheny R.

Overall conditionGood

Set by its lowest-rated component: Deck at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT722 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9 · sets the ratingSuperstructure 9/9Substructure 9/9

722 ft end to end, longest span 187 ft: about 2.0 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.

Built201115 years old
Length722.1 ft220.1 m
Daily traffic4,157counted 2018
Last inspectedMay 2023every 24 months

Location

StateNew York
CountyCattaraugus
LocationJct RTE 353 + Allegheny R
CarriesRTE 353
CrossesAllegheny River
Coordinates42.16166, -78.74338

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length722.1 ft (220.1 m)
Max Span187.0 ft (57 m)
Deck Width49.2 ft (15 m)
Deck Area3301.5 sq m
Main Spans4
Year Built2011

Traffic

Avg Daily Traffic4,157 (2018)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000006046330

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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