US Bridges

KY-317 over Yonts Fork

Good

Letcher County, Kentucky · 1.8 MI N of JCT Ky 343 · Structure no. 067B00152N

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
21 ft
1 main span
Daily traffic
634
2020 count
Owner
State
State Highway Agency

About this bridge

KY-317 over Yonts Fork is a aluminum, wrought iron, or cast iron culvert carrying KY-317 over Yonts Fork in Letcher County, Kentucky. It was built in 2024, so it is 1 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 634 vehicles a day, roughly 4% of them trucks, projected to reach 634 by 2040. The structure is 21 ft (6.4 m) long and 41 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesKY-317
CrossesYonts Fork
Location1.8 MI N of JCT Ky 343
RouteState Highway 317
CountyLetcher County
StateKentucky
Coordinates37.21556, -82.70528
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.6 US tons
Inventory rating49.6 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckAluminum
Main spans1
Design loadGreater than HL 93
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width41 ft (12.4 m)
Roadway width27 ft (8.2 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 statusNot eligible for the National Register of Historic Places
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 2024, making it 1 years old in 2025.

What condition is KY-317 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 October 2024.

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 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 41 ft wide.

Who owns KY-317 over Yonts Fork?

It is owned by the State Highway Agency.