Structure 6064850 · Cattaraugus County, NY

RTE 951r over Allegheny River

Carries RTE 951r over Allegheny River, 2.9 Mi E Jct RT 219 & I86.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating3/9 · Serious
Substructure5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT350 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 3/9 · sets the ratingSubstructure 5/9

350 ft end to end, longest span 173 ft: about 5 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 through truss.

Built1925101 years old
Length350.1 ft106.7 m
Daily traffic100counted 1976
Last inspectedApril 2024every 12 months

Location

StateNew York
CountyCattaraugus
Location2.9 Mi E Jct RT 219 & I86
CarriesRTE 951r
CrossesAllegheny River
Coordinates42.09418, -78.57447

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length350.1 ft (106.7 m)
Max Span172.9 ft (52.7 m)
Deck Width16.1 ft (4.9 m)
Deck Area522.8 sq m
Main Spans2
Year Built1925

Traffic

Avg Daily Traffic100 (1976)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000006064850

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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