US Bridges

KY-317 over Yonts Fork

Fair

Letcher County, Kentucky · 1.5 MI N of JCT Ky 343 · Structure no. 067B00014N

Built
1955
70 years old
Condition
Fair
inspected May 2021
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
634
2020 count
Owner
State
State Highway Agency

About this bridge

KY-317 over Yonts Fork is a concrete culvert carrying KY-317 over Yonts Fork in Letcher County, Kentucky. It was built in 1955, so it is 70 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 634 vehicles a day, roughly 4% of them trucks, projected to reach 634 by 2040. The structure is 35 ft (10.8 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesKY-317
CrossesYonts Fork
Location1.5 MI N of JCT Ky 343
RouteState Highway 317
CountyLetcher County
StateKentucky
Coordinates37.21111, -82.70694
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length35 ft (10.8 m)
Longest span17 ft (5.2 m)
Deck width35 ft (10.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic634 (2020)
Projected traffic634 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-317 over Yonts Fork built?

It was built in 1955, making it 70 years old in 2025.

What condition is KY-317 over Yonts Fork in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2021.

How much traffic does KY-317 over Yonts Fork carry?

About 634 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is KY-317 over Yonts Fork?

The structure is 35 ft (10.8 m) long with a longest span of 17 ft (5.2 m) and a deck 35 ft wide.

Who owns KY-317 over Yonts Fork?

It is owned by the State Highway Agency.