Structure 48C00205N · Harlan County, KY

Holbert Drive over Martins Fork

Carries Holbert Drive over Martins Fork, .1 M S Of Jct Ky 987.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT68 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

68 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 box-beam bridge.

Built20206 years old
Length67.9 ft20.7 m
Daily traffic35counted 2020
Last inspectedSeptember 2021every 48 months

Location

StateKentucky
CountyHarlan
Location.1 M S Of Jct Ky 987
CarriesHolbert Drive
CrossesMartins Fork
Coordinates36.72889, -83.28111

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length67.9 ft (20.7 m)
Max Span66.6 ft (20.3 m)
Deck Width12.1 ft (3.7 m)
Deck Area76.6 sq m
Main Spans1
Year Built2020

Traffic

Avg Daily Traffic35 (2020)
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2021
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number048C00205N

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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