Structure 1B00053N · Adair County, KY

HWY 55 over Ln-9008

Carries HWY 55 over Ln-9008, Ovr Cmbrlnd Pw Interchang.

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 FT200 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

200 ft end to end, longest span 77 ft: about 3 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 tee-beam bridge.

Built197254 years old
Length200.5 ft61.1 m
Daily traffic9,532counted 2021
Last inspectedJuly 2023every 48 months

Location

StateKentucky
CountyAdair
LocationOvr Cmbrlnd Pw Interchang
CarriesHWY 55
CrossesLn-9008
Coordinates37.08861, -85.30306

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length200.5 ft (61.1 m)
Max Span77.4 ft (23.6 m)
Deck Width53.5 ft (16.3 m)
Deck Area995.9 sq m
Main Spans2
Year Built1972

Traffic

Avg Daily Traffic9,532 (2021)
Truck Traffic15%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number001B00053N

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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