Structure 64B00038N · Lawrence County, KY

Ky-644 over Levisa Fork

Carries Ky-644 over Levisa Fork, 0.2 Mi NW Of Jct Ky 1690.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT469 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

469 ft end to end, longest span 172 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 through truss.

Built1904rebuilt 1970
Length469.5 ft143.1 m
Daily traffic1,132counted 2021
Last inspectedSeptember 2024every 12 months

Location

StateKentucky
CountyLawrence
Location0.2 Mi NW Of Jct Ky 1690
CarriesKy-644
CrossesLevisa Fork
Coordinates38.08056, -82.60000

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length469.5 ft (143.1 m)
Max Span171.6 ft (52.3 m)
Deck Width12.5 ft (3.8 m)
Deck Area543.8 sq m
Main Spans3
Year Built1904 (reconstructed 1970)

Traffic

Avg Daily Traffic1,132 (2021)
Truck Traffic3%
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number064B00038N

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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