US Bridges

KY-66 over Red Bird River

FairPosted for load

Leslie County, Kentucky · On Clay - Leslie Cl · Structure no. 066B00036N

Built
1957
68 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete Continuous
Length
186 ft
3 main spans
Daily traffic
367
2022 count
Owner
State
State Highway Agency

About this bridge

KY-66 over Red Bird River is a concrete continuous tee beam carrying KY-66 over Red Bird River in Leslie County, Kentucky. It was built in 1957, so it is 68 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 367 vehicles a day, roughly 7% of them trucks, projected to reach 367 by 2042. The structure is 186 ft (56.8 m) long and 28 ft wide. If it were closed, the detour would be 80.2 mi (129 km).

Location

Open in Google Maps
CarriesKY-66
CrossesRed Bird River
LocationOn Clay - Leslie Cl
RouteState Highway 66
CountyLeslie County
StateKentucky
Coordinates37.04806, -83.54389
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 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 rating53.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length186 ft (56.8 m)
Longest span80 ft (24.4 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic367 (2022)
Projected traffic367 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.2 mi (129 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-66 over Red Bird River built?

It was built in 1957, making it 68 years old in 2025.

What condition is KY-66 over Red Bird River 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 December 2023.

How much traffic does KY-66 over Red Bird River carry?

About 367 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is KY-66 over Red Bird River?

The structure is 186 ft (56.8 m) long with a longest span of 80 ft (24.4 m) and a deck 28 ft wide.

Who owns KY-66 over Red Bird River?

It is owned by the State Highway Agency.