Structure 5522000 · Niagara County, NY

Mainland To Green over Niagara River

Carries Mainland To Green over Niagara River, Niagara Falls SW.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 2 of 9.

How ratings work
Superstructuresets the rating2/9 · Critical
Substructure4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT410 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 2/9 · sets the ratingSubstructure 4/9

410 ft end to end, longest span 124 ft: about 6 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 deck arch.

Built1901125 years old
Length410.1 ft125 m
Daily traffic50counted 2009
Last inspectedNovember 2024every 12 months

Location

StateNew York
CountyNiagara
LocationNiagara Falls SW
CarriesMainland To Green
CrossesNiagara River
Coordinates43.08456, -79.06553

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length410.1 ft (125 m)
Max Span124.0 ft (37.8 m)
Deck Width40.0 ft (12.2 m)
Deck Area1,525 sq m
Main Spans3
Year Built1901

Traffic

Avg Daily Traffic50 (2009)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Park/Forest Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number000000005522000

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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