Structure 4807650 · Lucas County, OH

Ir 475 over CR 30-hill AVE

Carries Ir 475 over CR 30-hill AVE, Int. Ir 475 & Hill Ave..

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT177 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

177 ft end to end, longest span 73 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.

Built1968rebuilt 2020
Length177.5 ft54.1 m
Daily traffic45,050counted 2020
Last inspectedOctober 2024every 24 months

Location

StateOhio
CountyLucas
LocationInt. Ir 475 & Hill Ave.
CarriesIr 475
CrossesCR 30-hill AVE
Coordinates41.63849, -83.69430

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length177.5 ft (54.1 m)
Max Span73.5 ft (22.4 m)
Deck Width63.3 ft (19.3 m)
Deck Area1044.1 sq m
Main Spans3
Year Built1968 (reconstructed 2020)

Traffic

Avg Daily Traffic45,050 (2020)
Truck Traffic12%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number4807650

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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