Structure 29B00027N · Cumberland County, KY

Ky-90 over Cumberland River

Carries Ky-90 over Cumberland River, 0.1 Mi E Of S-jct Ky 61.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT942 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

942 ft end to end, longest span 205 ft: about 2.6 football fields. 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 girder bridge.

Built195175 years old
Length941.6 ft287 m
Daily traffic5,495counted 2021
Last inspectedApril 2024every 24 months

Location

StateKentucky
CountyCumberland
Location0.1 Mi E Of S-jct Ky 61
CarriesKy-90
CrossesCumberland River
Coordinates36.78028, -85.37028

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length941.6 ft (287 m)
Max Span205.1 ft (62.5 m)
Deck Width32.2 ft (9.8 m)
Deck Area2812.6 sq m
Main Spans5
Year Built1951

Traffic

Avg Daily Traffic5,495 (2021)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical8 — Stable, low risk
Structure Number029B00027N

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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