US Bridges

KY-300 over Knoblick Creek

FairPosted for load

Lincoln County, Kentucky · 3.5 MI N.W. of JCT Ky 78 · Structure no. 069B00041N

Built
1951
74 years old
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
129 ft
3 main spans
Daily traffic
312
2022 count
Owner
State
State Highway Agency

About this bridge

KY-300 over Knoblick Creek is a concrete tee beam carrying KY-300 over Knoblick Creek in Lincoln County, Kentucky. It was built in 1951, so it is 74 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 5 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 312 vehicles a day, projected to reach 312 by 2042. The structure is 129 ft (39.3 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKY-300
CrossesKnoblick Creek
Location3.5 MI N.W. of JCT Ky 78
RouteState Highway 300
CountyLincoln County
StateKentucky
Coordinates37.55167, -84.73056
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length129 ft (39.3 m)
Longest span39 ft (11.9 m)
Deck width26 ft (8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic312 (2022)
Projected traffic312 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$390,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-300 over Knoblick Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is KY-300 over Knoblick Creek 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 April 2024.

How much traffic does KY-300 over Knoblick Creek carry?

About 312 vehicles per day (2022 count).

How long is KY-300 over Knoblick Creek?

The structure is 129 ft (39.3 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns KY-300 over Knoblick Creek?

It is owned by the State Highway Agency.