US Bridges

US-23 over KY-40

Fair

Johnson County, Kentucky · @ JCT Ky 40 · Structure no. 058B00076R

Built
1996
29 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
347 ft
4 main spans
Daily traffic
3,080
2022 count
Owner
State
State Highway Agency

About this bridge

US-23 over KY-40 is a prestressed concrete continuous stringer/multi-beam or girder carrying US-23 over KY-40 in Johnson County, Kentucky. It was built in 1996, so it is 29 years old, younger 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 3,080 vehicles a day, roughly 20% of them trucks, projected to reach 3,080 by 2042. The structure is 347 ft (105.7 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS-23
CrossesKY-40
Location@ JCT Ky 40
RouteU.S. Route 23
CountyJohnson County
StateKentucky
Coordinates37.82444, -82.83611
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length347 ft (105.7 m)
Longest span118 ft (36.1 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,080 (2022)
Projected traffic3,080 by 2042
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-23 over KY-40 built?

It was built in 1996, making it 29 years old in 2025.

What condition is US-23 over KY-40 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 US-23 over KY-40 carry?

About 3,080 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is US-23 over KY-40?

The structure is 347 ft (105.7 m) long with a longest span of 118 ft (36.1 m) and a deck 45 ft wide.

Who owns US-23 over KY-40?

It is owned by the State Highway Agency.