Structure 89B00078N · Muhlenberg County, KY

Ky-175 over Thompson Creek

Carries Ky-175 over Thompson Creek, 1.0 Mi Sou. Of Jct US 62.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT114 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

114 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 tee-beam bridge.

Built195076 years old
Length113.8 ft34.7 m
Daily traffic113counted 2018
Last inspectedSeptember 2023every 24 months

Location

StateKentucky
CountyMuhlenberg
Location1.0 Mi Sou. Of Jct US 62
CarriesKy-175
CrossesThompson Creek
Coordinates37.21194, -87.28694

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length113.8 ft (34.7 m)
Max Span35.1 ft (10.7 m)
Deck Width24.0 ft (7.3 m)
Deck Area253.3 sq m
Main Spans3
Year Built1950

Traffic

Avg Daily Traffic113 (2018)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number089B00078N

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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