US Bridges

KY-358 over Humphreys Slough

FairPosted for load

Ballard County, Kentucky · .80 MI Nor. of JCT US 60 · Structure no. 004B00022N

Built
1941
84 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
99 ft
3 main spans
Daily traffic
1,308
2018 count
Owner
State
State Highway Agency

About this bridge

KY-358 over Humphreys Slough is a concrete tee beam carrying KY-358 over Humphreys Slough in Ballard County, Kentucky. It was built in 1941, so it is 84 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. Its operating status is: posted for load restriction.

It carries about 1,308 vehicles a day, roughly 11% of them trucks, projected to reach 1,308 by 2038. The structure is 99 ft (30.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesKY-358
CrossesHumphreys Slough
Location.80 MI Nor. of JCT US 60
RouteState Highway 358
CountyBallard County
StateKentucky
Coordinates37.08667, -88.97528
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.8 US tons
Inventory rating28.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length99 ft (30.2 m)
Longest span31 ft (9.4 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,308 (2018)
Projected traffic1,308 by 2038
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$297,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-358 over Humphreys Slough built?

It was built in 1941, making it 84 years old in 2025.

What condition is KY-358 over Humphreys 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 August 2023.

How much traffic does KY-358 over Humphreys Slough carry?

About 1,308 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is KY-358 over Humphreys Slough?

The structure is 99 ft (30.2 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.

Who owns KY-358 over Humphreys Slough?

It is owned by the State Highway Agency.