US Bridges

US-421 over Br of Hays Fork

Fair

Madison County, Kentucky · 0.4MI S of Ky 3376 · Structure no. 076B00017N

Built
1929
96 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
5,629
2022 count
Owner
State
State Highway Agency

About this bridge

US-421 over Br of Hays Fork is a concrete culvert carrying US-421 over Br of Hays Fork in Madison County, Kentucky. It was built in 1929, so it is 96 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 5,629 vehicles a day, roughly 6% of them trucks, projected to reach 5,629 by 2042. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS-421
CrossesBr of Hays Fork
Location0.4MI S of Ky 3376
RouteU.S. Route 421
Coordinates37.63944, -84.23194
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
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
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length35 ft (10.8 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,629 (2022)
Projected traffic5,629 by 2042
Trucks6%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-421 over Br of Hays Fork built?

It was built in 1929, making it 96 years old in 2025.

What condition is US-421 over Br of Hays Fork 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 US-421 over Br of Hays Fork carry?

About 5,629 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is US-421 over Br of Hays Fork?

The structure is 35 ft (10.8 m) long with a longest span of 17 ft (5.2 m).

Who owns US-421 over Br of Hays Fork?

It is owned by the State Highway Agency.