Structure 74C00010N · McCreary County, KY

Wiborg Loop RD over Ns (cno&tp) System

Carries Wiborg Loop RD over Ns (cno&tp) System, 0.1 Mi W Of US 27.

Overall conditionPoor

Set by its lowest-rated component: Deck and Substructure at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure4/9 · Poor
Substructuresets the rating3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT105 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 4/9Substructure 3/9 · sets the rating

105 ft end to end, longest span 33 ft. 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.

Built195868 years old
Length105.0 ft32 m
Daily traffic189counted 2019
Last inspectedNovember 2024every 12 months

Location

StateKentucky
CountyMcCreary
Location0.1 Mi W Of US 27
CarriesWiborg Loop RD
CrossesNs (cno&tp) System
Coordinates36.80944, -84.48972

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length105.0 ft (32 m)
Max Span33.1 ft (10.1 m)
Deck Width25.9 ft (7.9 m)
Deck Area252.8 sq m
Main Spans3
Year Built1958

Traffic

Avg Daily Traffic189 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number074C00010N

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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