Structure 5512069 · Erie County, NY

RTE I90 over William ST

Carries RTE I90 over William ST, 3.4 Mi S Jct I90 <rte 130.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT145 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

145 ft end to end, longest span 67 ft: about 2 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 multi-beam bridge.

Built1953rebuilt 1973
Length144.7 ft44.1 m
Daily traffic114,760counted 2019
Last inspectedOctober 2023every 24 months

Location

StateNew York
CountyErie
Location3.4 Mi S Jct I90 <rte 130
CarriesRTE I90
CrossesWilliam ST
Coordinates42.88403, -78.76808

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length144.7 ft (44.1 m)
Max Span66.9 ft (20.4 m)
Deck Width113.2 ft (34.5 m)
Deck Area1521.5 sq m
Main Spans3
Year Built1953 (reconstructed 1973)

Traffic

Avg Daily Traffic114,760 (2019)
Truck Traffic10%
Lanes On Bridge6
Lanes Under Bridge5

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number000000005512069

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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