Structure 78B00054N · Marion County, KY

Ky-1157 over Medlock Creek

Carries Ky-1157 over Medlock Creek, 1.8 Mi S.w. Of Jct Ky 49.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT44 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 44 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built195175 years old
Length44.0 ft13.4 m
Daily traffic205counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateKentucky
CountyMarion
Location1.8 Mi S.w. Of Jct Ky 49
CarriesKy-1157
CrossesMedlock Creek
Coordinates37.48000, -85.20250

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length44.0 ft (13.4 m)
Max Span20.0 ft (6.1 m)
Deck Width22.6 ft (6.9 m)
Deck Area92.5 sq m
Main Spans2
Year Built1951

Traffic

Avg Daily Traffic205 (2021)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number078B00054N

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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