Structure 4932501 · Madison County, OH

County RD 7 over Three Mile Run

Carries County RD 7 over Three Mile Run, 4.56 Mi N Of County Line.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.

How ratings work
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT27 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 4/9Substructure 4/9

27 ft end to end. Lengths and the car 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 deck arch.

Built1920106 years old
Length26.9 ft8.2 m
Daily traffic3,334counted 2015
Last inspectedJanuary 2025every 12 months

Location

StateOhio
CountyMadison
Location4.56 Mi N Of County Line
CarriesCounty RD 7
CrossesThree Mile Run
Coordinates40.01785, -83.26193

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length26.9 ft (8.2 m)
Max Span24.0 ft (7.3 m)
Deck Width24.0 ft (7.3 m)
Deck Area59.9 sq m
Main Spans1
Year Built1920

Traffic

Avg Daily Traffic3,334 (2015)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number4932501

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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