US Bridges

KY-343 over Yonts Fork

Good

Letcher County, Kentucky · 0.05 MI E JCT Ky 317 · Structure no. 067B00127N

Built
1997
28 years old
Condition
Good
inspected May 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
22 ft
1 main span
Daily traffic
1,840
2020 count
Owner
State
State Highway Agency

About this bridge

KY-343 over Yonts Fork is a aluminum, wrought iron, or cast iron culvert carrying KY-343 over Yonts Fork in Letcher County, Kentucky. It was built in 1997, so it is 28 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,840 vehicles a day, roughly 5% of them trucks, projected to reach 1,840 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesKY-343
CrossesYonts Fork
Location0.05 MI E JCT Ky 317
RouteState Highway 343
CountyLetcher County
StateKentucky
Coordinates37.19139, -82.71194
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating90.7 US tons
Inventory rating70 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,840 (2020)
Projected traffic1,840 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$66,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-343 over Yonts Fork built?

It was built in 1997, making it 28 years old in 2025.

What condition is KY-343 over Yonts Fork in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does KY-343 over Yonts Fork carry?

About 1,840 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is KY-343 over Yonts Fork?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).

Who owns KY-343 over Yonts Fork?

It is owned by the State Highway Agency.