US Bridges

US 421 over Town Creek

Fair

Henry County, Kentucky · 0.7 MI S of Ky 146 · Structure no. 052B00057N

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
41 ft
2 main spans
Daily traffic
7,573
2019 count
Owner
State
State Highway Agency

About this bridge

US 421 over Town Creek is a concrete culvert carrying US 421 over Town Creek in Henry County, Kentucky. It was built in 1975, so it is 50 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 7,573 vehicles a day, roughly 15% of them trucks, projected to reach 7,573 by 2039. The structure is 41 ft (12.6 m) long and 86 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUS 421
CrossesTown Creek
Location0.7 MI S of Ky 146
RouteU.S. Route 421
CountyHenry County
StateKentucky
Coordinates38.42333, -85.17083
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length41 ft (12.6 m)
Longest span20 ft (6 m)
Deck width86 ft (26.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,573 (2019)
Projected traffic7,573 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 421 over Town Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is US 421 over Town 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 July 2023.

How much traffic does US 421 over Town Creek carry?

About 7,573 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is US 421 over Town Creek?

The structure is 41 ft (12.6 m) long with a longest span of 20 ft (6 m) and a deck 86 ft wide.

Who owns US 421 over Town Creek?

It is owned by the State Highway Agency.