US Bridges

KY-309 over Running Slough

Fair

Fulton County, Kentucky · .1 MI S of JCT Ky 1099 · Structure no. 038B00029N

Built
1935
90 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
606
2023 count
Owner
State
State Highway Agency

About this bridge

KY-309 over Running Slough is a concrete culvert carrying KY-309 over Running Slough in Fulton County, Kentucky. It was built in 1935, so it is 90 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 606 vehicles a day, projected to reach 606 by 2043. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesKY-309
CrossesRunning Slough
Location.1 MI S of JCT Ky 1099
RouteState Highway 309
Coordinates36.55889, -89.19917
Functional classRural Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic606 (2023)
Projected traffic606 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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-309 over Running Slough built?

It was built in 1935, making it 90 years old in 2025.

What condition is KY-309 over Running Slough 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 February 2024.

How much traffic does KY-309 over Running Slough carry?

About 606 vehicles per day (2023 count).

How long is KY-309 over Running Slough?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m).

Who owns KY-309 over Running Slough?

It is owned by the State Highway Agency.