Structure 24B00123N · Christian County, KY

Ky-164 over I 24

Carries Ky-164 over I 24, I-24 Op .70 Mi N Jct Ky11.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT243 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

243 ft end to end, longest span 95 ft: about 3 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 box-beam bridge.

Built197353 years old
Length243.1 ft74.1 m
Daily traffic1,060counted 2017
Last inspectedJune 2023every 24 months

Location

StateKentucky
CountyChristian
LocationI-24 Op .70 Mi N Jct Ky11
CarriesKy-164
CrossesI 24
Coordinates36.80639, -87.61694

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length243.1 ft (74.1 m)
Max Span95.1 ft (29 m)
Deck Width33.1 ft (10.1 m)
Deck Area748.4 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic1,060 (2017)
Truck Traffic22%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number024B00123N

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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