Structure 4B00034N · Ballard County, KY

Ky-473 over Unnamed Stream

Carries Ky-473 over Unnamed Stream, .90 Mi N.w. Of Jct Ky 358.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT34 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 5/9

34 ft end to end. Lengths and the car 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 channel-beam bridge.

Built196660 years old
Length33.8 ft10.3 m
Daily traffic313counted 2023
Last inspectedJuly 2024every 12 months

Location

StateKentucky
CountyBallard
Location.90 Mi N.w. Of Jct Ky 358
CarriesKy-473
CrossesUnnamed Stream
Coordinates37.15250, -88.94528

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length33.8 ft (10.3 m)
Max Span32.2 ft (9.8 m)
Deck Width33.5 ft (10.2 m)
Deck Area105.1 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic313 (2023)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number004B00034N

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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