Structure 5502586 · Miami County, OH

Ir-75 over County Ditch

Carries Ir-75 over County Ditch, 1.87mi.n. Of Jct. Sr-41.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
21 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 21 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built195769 years old
Length21.0 ft6.4 m
Daily traffic54,110counted 2015
Last inspectedMarch 2024every 12 months

Location

StateOhio
CountyMiami
Location1.87mi.n. Of Jct. Sr-41
CarriesIr-75
CrossesCounty Ditch
Coordinates40.07927, -84.23370

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length21.0 ft (6.4 m)
Max Span8.9 ft (2.7 m)
Deck Area249.6 sq m
Main Spans2
Year Built1957

Traffic

Avg Daily Traffic54,110 (2015)
Truck Traffic12%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number5502586

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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