Structure 69B00020N · Lincoln County, KY

Ky-78 over Ns (cno&tp) System

Carries Ky-78 over Ns (cno&tp) System, 2.0 Mi East Of Jct US 127.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT131 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

131 ft end to end, longest span 80 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.

Built196363 years old
Length130.6 ft39.8 m
Daily traffic1,360counted 2021
Last inspectedApril 2024every 24 months

Location

StateKentucky
CountyLincoln
Location2.0 Mi East Of Jct US 127
CarriesKy-78
CrossesNs (cno&tp) System
Coordinates37.48278, -84.78278

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length130.6 ft (39.8 m)
Max Span80.1 ft (24.4 m)
Deck Width36.1 ft (11 m)
Deck Area437.8 sq m
Main Spans2
Year Built1963

Traffic

Avg Daily Traffic1,360 (2021)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number069B00020N

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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