US Bridges

I-75 over Clay Lick Branch

Fair

Rockcastle County, Kentucky · .50 MI Nor. of Ky 1505 Op · Structure no. 102B00043N

Built
1967
58 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
47,638
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 over Clay Lick Branch is a concrete culvert carrying I-75 over Clay Lick Branch in Rockcastle County, Kentucky. It was built in 1967, so it is 58 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 47,638 vehicles a day, roughly 26% of them trucks, projected to reach 59,071 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesI-75
CrossesClay Lick Branch
Location.50 MI Nor. of Ky 1505 Op
RouteInterstate 75
Coordinates37.47528, -84.33389
Functional classRural Principal Arterial - Interstate

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span21 ft (6.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,638 (2023)
Projected traffic59,071 by 2043
Trucks26%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-75 over Clay Lick Branch built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-75 over Clay Lick Branch 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 September 2024.

How much traffic does I-75 over Clay Lick Branch carry?

About 47,638 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I-75 over Clay Lick Branch?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.3 m).

Who owns I-75 over Clay Lick Branch?

It is owned by the State Highway Agency.