Structure 63B00125N · Laurel County, KY

I-75 over Laurel River

Carries I-75 over Laurel River, 1.5 Mile N Of Us25 Ntrc.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT483 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

483 ft end to end, longest span 200 ft: about 7 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 multi-beam bridge.

Built20206 years old
Length482.9 ft147.2 m
Daily traffic42,462counted 2018
Last inspectedJune 2022every 48 months

Location

StateKentucky
CountyLaurel
Location1.5 Mile N Of Us25 Ntrc
CarriesI-75
CrossesLaurel River
Coordinates37.00167, -84.10583

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length482.9 ft (147.2 m)
Max Span200.1 ft (61 m)
Deck Width128.0 ft (39 m)
Deck Area5740.8 sq m
Main Spans3
Year Built2020

Traffic

Avg Daily Traffic42,462 (2018)
Truck Traffic27%
Lanes On Bridge6

Inspection & Ownership

Last InspectionJune 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number063B00125N

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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