Structure 100B00064N · Pulaski County, KY

Ky-80b over Ns (cno&tp) System

Carries Ky-80b over Ns (cno&tp) System, .10 Mi East Of Jct US 27.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT169 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

169 ft end to end, longest span 65 ft: about 2 semi-trucks nose to tail. 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 multi-beam bridge.

Built197155 years old
Length169.0 ft51.5 m
Daily traffic20,743counted 2023
Last inspectedJune 2023every 48 months

Location

StateKentucky
CountyPulaski
Location.10 Mi East Of Jct US 27
CarriesKy-80b
CrossesNs (cno&tp) System
Coordinates37.09611, -84.61806

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length169.0 ft (51.5 m)
Max Span65.0 ft (19.8 m)
Deck Width88.6 ft (27 m)
Deck Area1390.5 sq m
Main Spans3
Year Built1971

Traffic

Avg Daily Traffic20,743 (2023)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number100B00064N

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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