Structure 60C00097N · Knott County, KY

Troublesome Drive over Troublesome Creek

Carries Troublesome Drive over Troublesome Creek, 15 SW Of Jct Ky 550.

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
SEMI-TRUCK · 72 FT120 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

120 ft end to end, longest span 39 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 multi-beam bridge.

Built197551 years old
Length120.1 ft36.6 m
Daily traffic80counted 2022
Last inspectedNovember 2024every 24 months

Location

StateKentucky
CountyKnott
Location15 SW Of Jct Ky 550
CarriesTroublesome Drive
CrossesTroublesome Creek
Coordinates37.33778, -83.10556

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length120.1 ft (36.6 m)
Max Span39.0 ft (11.9 m)
Deck Width11.2 ft (3.4 m)
Deck Area124.4 sq m
Main Spans5
Year Built1975

Traffic

Avg Daily Traffic80 (2022)
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number060C00097N

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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