US Bridges

US 127/US 421 over US 127

Fair

Franklin County, Kentucky · 1.5 MI N of US 460 · Structure no. 037B00067N

Built
1974
51 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
202 ft
3 main spans
Daily traffic
13,665
2022 count
Owner
State
State Highway Agency

About this bridge

US 127/US 421 over US 127 is a prestressed concrete continuous stringer/multi-beam or girder carrying US 127/US 421 over US 127 in Franklin County, Kentucky. It was built in 1974, so it is 51 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 13,665 vehicles a day, roughly 13% of them trucks, projected to reach 13,665 by 2042. The structure is 202 ft (61.5 m) long and 87 ft wide.

CarriesUS 127/US 421
CrossesUS 127
Location1.5 MI N of US 460
RouteU.S. Route 127
Coordinates38.21639, -84.85306
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating67.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length202 ft (61.5 m)
Longest span101 ft (30.8 m)
Deck width87 ft (26.5 m)
Roadway width79 ft (24.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,665 (2022)
Projected traffic13,665 by 2042
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 127/US 421 over US 127 built?

It was built in 1974, making it 51 years old in 2025.

What condition is US 127/US 421 over US 127 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 2024.

How much traffic does US 127/US 421 over US 127 carry?

About 13,665 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 127/US 421 over US 127?

The structure is 202 ft (61.5 m) long with a longest span of 101 ft (30.8 m) and a deck 87 ft wide.

Who owns US 127/US 421 over US 127?

It is owned by the State Highway Agency.