Structure 8B00092N · Boone County, KY

Ky-842 over Ns (cno&tp) System

Carries Ky-842 over Ns (cno&tp) System, 0.2 Mi E. Of Us-25.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT178 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 6/9

178 ft end to end: 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.

Built198244 years old
Length178.1 ft54.3 m
Daily traffic9,286counted 2021
Last inspectedJune 2024every 12 months

Location

StateKentucky
CountyBoone
Location0.2 Mi E. Of Us-25
CarriesKy-842
CrossesNs (cno&tp) System
Coordinates38.96861, -84.61278

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length178.1 ft (54.3 m)
Max Span53.1 ft (16.2 m)
Deck Width25.9 ft (7.9 m)
Deck Area429.0 sq m
Main Spans1
Year Built1982

Traffic

Avg Daily Traffic9,286 (2021)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number008B00092N

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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