Structure 4901207 · Madison County, OH

SR 42 over Oak Run

Carries SR 42 over Oak Run, 0.36 Mi S Of Sr38.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT93 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

93 ft end to end, longest span 35 ft. 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 slab bridge.

Built196561 years old
Length92.8 ft28.3 m
Daily traffic7,835counted 2015
Last inspectedJuly 2024every 12 months

Location

StateOhio
CountyMadison
Location0.36 Mi S Of Sr38
CarriesSR 42
CrossesOak Run
Coordinates39.88274, -83.45390

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length92.8 ft (28.3 m)
Max Span35.1 ft (10.7 m)
Deck Width60.4 ft (18.4 m)
Deck Area520.7 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic7,835 (2015)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number4901207

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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