Structure 4801026 · Lucas County, OH

Usr 20a over Ir 475

Carries Usr 20a over Ir 475, Int. Of Usr 20a & I-475.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT305 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

305 ft end to end, longest span 79 ft: about 4 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.

Built20233 years old
Length305.1 ft93 m
Daily traffic9,700counted 2021
Last inspectedJanuary 2025every 12 months

Location

StateOhio
CountyLucas
LocationInt. Of Usr 20a & I-475
CarriesUsr 20a
CrossesIr 475
Coordinates41.57157, -83.69173

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length305.1 ft (93 m)
Max Span78.7 ft (24 m)
Deck Width39.4 ft (12 m)
Deck Area1,116 sq m
Main Spans4
Year Built2023

Traffic

Avg Daily Traffic9,700 (2021)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number4801026

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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