US Bridges

US-421 over John H Morgan RD

Fair

Leslie County, Kentucky · 1.1 MI S of JCT Ky 2009 · Structure no. 066B00009N

Built
1941
84 years old
Condition
Fair
inspected December 2023
Type
Culvert
Masonry
Length
22 ft
2 main spans
Daily traffic
1,529
2021 count
Owner
State
State Highway Agency

About this bridge

US-421 over John H Morgan RD is a masonry culvert carrying US-421 over John H Morgan RD in Leslie 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 5 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 1,529 vehicles a day, roughly 11% of them trucks, projected to reach 1,529 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUS-421
CrossesJohn H Morgan RD
Location1.1 MI S of JCT Ky 2009
RouteU.S. Route 421
CountyLeslie County
StateKentucky
Coordinates37.06778, -83.40667
Functional classRural Minor Arterial

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,529 (2021)
Projected traffic1,529 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-421 over John H Morgan RD built?

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

What condition is US-421 over John H Morgan RD 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 US-421 over John H Morgan RD carry?

About 1,529 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is US-421 over John H Morgan RD?

The structure is 22 ft (6.7 m) long with a longest span of 8 ft (2.4 m).

Who owns US-421 over John H Morgan RD?

It is owned by the State Highway Agency.