Structure 58B00013N · Johnson County, KY

Ky-172 over Mudlick Creek

Carries Ky-172 over Mudlick Creek, 0.45 Mi N Of Jct Ky 40.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT129 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

129 ft end to end, longest span 40 ft. 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 tee-beam bridge.

Built193393 years old
Length128.9 ft39.3 m
Daily traffic2,912counted 2020
Last inspectedOctober 2024every 48 months

Location

StateKentucky
CountyJohnson
Location0.45 Mi N Of Jct Ky 40
CarriesKy-172
CrossesMudlick Creek
Coordinates37.83944, -82.85806

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length128.9 ft (39.3 m)
Max Span40.0 ft (12.2 m)
Deck Width22.0 ft (6.7 m)
Deck Area263.3 sq m
Main Spans3
Year Built1933

Traffic

Avg Daily Traffic2,912 (2020)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number058B00013N

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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