Structure 60B00056N · Knott County, KY

Ky-15 over Carr Fork Lake

Carries Ky-15 over Carr Fork Lake, 0.1 Mi W Of Jct Ky 1231.

Overall conditionFair

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

How ratings work
Deck9/9 · Excellent
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT632 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 6/9 · sets the ratingSubstructure 7/9

632 ft end to end, longest span 235 ft: about 1.8 football fields. 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 girder bridge.

Built1972rebuilt 2023
Length631.6 ft192.5 m
Daily traffic4,778counted 2023
Last inspectedJune 2024every 12 months

Location

StateKentucky
CountyKnott
Location0.1 Mi W Of Jct Ky 1231
CarriesKy-15
CrossesCarr Fork Lake
Coordinates37.23000, -82.99778

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length631.6 ft (192.5 m)
Max Span234.9 ft (71.6 m)
Deck Width35.1 ft (10.7 m)
Deck Area2059.8 sq m
Main Spans3
Year Built1972 (reconstructed 2023)

Traffic

Avg Daily Traffic4,778 (2023)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number060B00056N

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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