Structure 17B00003N · Caldwell County, KY

Ky-139 over Fork Of Donaldson Creek

Carries Ky-139 over Fork Of Donaldson Creek, .80 Mi Sou. Of Jct Ky 70.

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT129 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

129 ft end to end, longest span 41 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 tee-beam bridge.

Built193195 years old
Length128.9 ft39.3 m
Daily traffic638counted 2022
Last inspectedJanuary 2023every 24 months

Location

StateKentucky
CountyCaldwell
Location.80 Mi Sou. Of Jct Ky 70
CarriesKy-139
CrossesFork Of Donaldson Creek
Coordinates37.23417, -87.89694

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length128.9 ft (39.3 m)
Max Span41.3 ft (12.6 m)
Deck Width22.0 ft (6.7 m)
Deck Area263.3 sq m
Main Spans3
Year Built1931

Traffic

Avg Daily Traffic638 (2022)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number017B00003N

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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