Structure 63B00002N · Laurel County, KY

Ky-490 over Csx Railroad

Carries Ky-490 over Csx Railroad, .05 Mi N.e. Of Jct US 25.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT252 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

252 ft end to end, longest span 56 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.

Built194185 years old
Length252.0 ft76.8 m
Daily traffic6,513counted 2022
Last inspectedJuly 2024every 24 months

Location

StateKentucky
CountyLaurel
Location.05 Mi N.e. Of Jct US 25
CarriesKy-490
CrossesCsx Railroad
Coordinates37.17611, -84.12639

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length252.0 ft (76.8 m)
Max Span56.1 ft (17.1 m)
Deck Width31.5 ft (9.6 m)
Deck Area737.3 sq m
Main Spans5
Year Built1941

Traffic

Avg Daily Traffic6,513 (2022)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number063B00002N

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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