Structure 71B00047N · Logan County, KY

Us-68x over Rjc Railroad

Carries Us-68x over Rjc Railroad, .3 Mi West Of Jct Ky 2146.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT364 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

364 ft end to end, longest span 50 ft: about 5 semi-trucks nose to tail. 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.

Built193690 years old
Length363.8 ft110.9 m
Daily traffic7,976counted 2021
Last inspectedNovember 2023every 24 months

Location

StateKentucky
CountyLogan
Location.3 Mi West Of Jct Ky 2146
CarriesUs-68x
CrossesRjc Railroad
Coordinates36.84528, -86.89556

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length363.8 ft (110.9 m)
Max Span49.9 ft (15.2 m)
Deck Width29.9 ft (9.1 m)
Deck Area1009.2 sq m
Main Spans7
Year Built1936

Traffic

Avg Daily Traffic7,976 (2021)
Truck Traffic13%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number071B00047N

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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