Structure 2260450 · Erie County, NY

Michigan Avenue over Buffalo River

Carries Michigan Avenue over Buffalo River, .3 Mi SW Jct Sh5 & Buf Rv.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT239 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 5/9 · sets the rating

239 ft end to end: about 3 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 lift bridge (drawn closed).

Built1930rebuilt 1996
Length238.8 ft72.8 m
Daily traffic2,133counted 2019
Last inspectedOctober 2023every 24 months

Location

StateNew York
CountyErie
Location.3 Mi SW Jct Sh5 & Buf Rv
CarriesMichigan Avenue
CrossesBuffalo River
Coordinates42.87141, -78.87335

Physical Characteristics

MaterialSteel
DesignMovable - Lift
Total Length238.8 ft (72.8 m)
Max Span235.9 ft (71.9 m)
Deck Width41.3 ft (12.6 m)
Deck Area917.3 sq m
Main Spans1
Year Built1930 (reconstructed 1996)

Traffic

Avg Daily Traffic2,133 (2019)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000002260450

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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