Structure 84B00003N · Mercer County, KY

Us-68 over Kentucky River

Carries Us-68 over Kentucky River, At Jessamine - Mercer Cl.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT639 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 5/9

639 ft end to end, longest span 200 ft: about 1.8 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 segmental box-girder bridge.

Built195472 years old
Length639.1 ft194.8 m
Daily traffic2,641counted 2021
Last inspectedAugust 2024every 24 months

Location

StateKentucky
CountyMercer
LocationAt Jessamine - Mercer Cl
CarriesUs-68
CrossesKentucky River
Coordinates37.86083, -84.70194

Physical Characteristics

MaterialConcrete Continuous
DesignSegmental Box Girder
Total Length639.1 ft (194.8 m)
Max Span200.1 ft (61 m)
Deck Width36.4 ft (11.1 m)
Deck Area2162.3 sq m
Main Spans5
Year Built1954

Traffic

Avg Daily Traffic2,641 (2021)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical5 — Stable for scour
Structure Number084B00003N

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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