Structure 53B00108N · Hickman County, KY

Ky-307 over Overflow Bayou Du Chien_

Carries Ky-307 over Overflow Bayou Du Chien_, 1.1mi Sou. Of Jct Ky-944.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT138 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

138 ft end to end, longest span 53 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 box-beam bridge.

Built201511 years old
Length138.5 ft42.2 m
Daily traffic726counted 2023
Last inspectedJuly 2023every 48 months

Location

StateKentucky
CountyHickman
Location1.1mi Sou. Of Jct Ky-944
CarriesKy-307
CrossesOverflow Bayou Du Chien_
Coordinates36.60917, -88.87139

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Single/Spread
Total Length138.5 ft (42.2 m)
Max Span53.1 ft (16.2 m)
Deck Width38.4 ft (11.7 m)
Deck Area493.7 sq m
Main Spans3
Year Built2015

Traffic

Avg Daily Traffic726 (2023)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number053B00108N

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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