Structure 59B00044R · Kenton County, KY

I-75 over Us25 Ky1120 (11th 12th L

Carries I-75 over Us25 Ky1120 (11th 12th L, Nbl-.3m N-jefferson ST Op.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT684 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

684 ft end to end, longest span 80 ft: about 1.9 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 tee-beam bridge.

Built196066 years old
Length684.1 ft208.5 m
Daily traffic79,675counted 2017
Last inspectedNovember 2023every 24 months

Location

StateKentucky
CountyKenton
LocationNbl-.3m N-jefferson ST Op
CarriesI-75
CrossesUs25 Ky1120 (11th 12th L
Coordinates39.07667, -84.51972

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length684.1 ft (208.5 m)
Max Span80.1 ft (24.4 m)
Deck Width86.9 ft (26.5 m)
Deck Area5525.2 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic79,675 (2017)
Truck Traffic14%
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number059B00044R

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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