Structure 100C00103N · Pulaski County, KY

Aderholt Road over Mayfield Branch

Carries Aderholt Road over Mayfield Branch, 2.15 M S Of Jct Ky 790.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT43 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

43 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 multi-beam bridge.

Built201313 years old
Length42.7 ft13 m
Daily traffic254counted 2019
Last inspectedAugust 2022every 48 months

Location

StateKentucky
CountyPulaski
Location2.15 M S Of Jct Ky 790
CarriesAderholt Road
CrossesMayfield Branch
Coordinates36.93000, -84.62306

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length42.7 ft (13 m)
Max Span35.4 ft (10.8 m)
Deck Width21.3 ft (6.5 m)
Deck Area84.5 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic254 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number100C00103N

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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