US Bridges

KY-40 over State Road Fork

Fair

Johnson County, Kentucky · 2.95MI. E. JCT Ky 580 · Structure no. 058B00080N

Built
1997
28 years old
Condition
Fair
inspected October 2021
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
1,530
2020 count
Owner
State
State Highway Agency

About this bridge

KY-40 over State Road Fork is a prestressed concrete box beam or girders - single or spread carrying KY-40 over State Road Fork in Johnson County, Kentucky. It was built in 1997, so it is 28 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 1,530 vehicles a day, roughly 7% of them trucks, projected to reach 1,530 by 2040. The structure is 33 ft (10 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesKY-40
CrossesState Road Fork
Location2.95MI. E. JCT Ky 580
RouteState Highway 40
CountyJohnson County
StateKentucky
Coordinates37.8175, -82.89333
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating47.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length33 ft (10 m)
Longest span31 ft (9.3 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,530 (2020)
Projected traffic1,530 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 KY-40 over State Road Fork built?

It was built in 1997, making it 28 years old in 2025.

What condition is KY-40 over State Road 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 October 2021.

How much traffic does KY-40 over State Road Fork carry?

About 1,530 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is KY-40 over State Road Fork?

The structure is 33 ft (10 m) long with a longest span of 31 ft (9.3 m) and a deck 33 ft wide.

Who owns KY-40 over State Road Fork?

It is owned by the State Highway Agency.