Structure 1068262 · Niagara County, NY

RTE 957a over Rbt Moses Pwrplnt

Carries RTE 957a over Rbt Moses Pwrplnt, 0.5 Mi S 957a Access 190i.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,934 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

1,934 ft end to end, longest span 75 ft: about 5.4 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.

Built1963rebuilt 1992
Length1934.1 ft589.5 m
Daily traffic1,081counted 2021
Last inspectedFebruary 2023every 24 months

Location

StateNew York
CountyNiagara
Location0.5 Mi S 957a Access 190i
CarriesRTE 957a
CrossesRbt Moses Pwrplnt
Coordinates43.14141, -79.03942

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length1934.1 ft (589.5 m)
Max Span75.1 ft (22.9 m)
Deck Width33.8 ft (10.3 m)
Deck Area6071.9 sq m
Main Spans39
Year Built1963 (reconstructed 1992)

Traffic

Avg Daily Traffic1,081 (2021)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerOther State Agencies
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000001068262

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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