US Bridges

KY-66 over Big Dbl Creek

Fair

Clay County, Kentucky · 2.0 MI Sou. of JCT US 421 · Structure no. 026B00034N

Built
1963
62 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
607
2021 count
Owner
State
State Highway Agency

About this bridge

KY-66 over Big Dbl Creek is a concrete culvert carrying KY-66 over Big Dbl Creek in Clay County, Kentucky. It was built in 1963, so it is 62 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 607 vehicles a day, roughly 9% of them trucks, projected to reach 607 by 2041. The structure is 33 ft (10.2 m) long. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesKY-66
CrossesBig Dbl Creek
Location2.0 MI Sou. of JCT US 421
RouteState Highway 66
CountyClay County
StateKentucky
Coordinates37.14028, -83.58778
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
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.3 US tons
Inventory rating38 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length33 ft (10.2 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic607 (2021)
Projected traffic607 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 Big Dbl Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is KY-66 over Big Dbl 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 October 2023.

How much traffic does KY-66 over Big Dbl Creek carry?

About 607 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is KY-66 over Big Dbl Creek?

The structure is 33 ft (10.2 m) long with a longest span of 16 ft (4.9 m).

Who owns KY-66 over Big Dbl Creek?

It is owned by the State Highway Agency.