Structure 73B00107L · McCracken County, KY

I 24 Nc over Perkins Creek

Carries I 24 Nc over Perkins Creek, Wbl .27 Mi SE Of Us60 Ntr.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT115 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

115 ft end to end, longest span 50 ft. Lengths and the car 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
Length114.8 ft35 m
Daily traffic17,267counted 2021
Last inspectedOctober 2021every 48 months

Location

StateKentucky
CountyMcCracken
LocationWbl .27 Mi SE Of Us60 Ntr
CarriesI 24 Nc
CrossesPerkins Creek
Coordinates37.07556, -88.67833

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length114.8 ft (35 m)
Max Span49.9 ft (15.2 m)
Deck Width44.0 ft (13.4 m)
Deck Area469 sq m
Main Spans3
Year Built1972

Traffic

Avg Daily Traffic17,267 (2021)
Truck Traffic23%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2021
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number073B00107L

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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