US Bridges

KY-307 over West Fork Mayfield Creek

Fair

Carlisle County, Kentucky · 1.9 MI Sou. of JCT Ky 121 · Structure no. 020B00053N

Built
1977
48 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
331 ft
10 main spans
Daily traffic
1,197
2021 count
Owner
State
State Highway Agency

About this bridge

KY-307 over West Fork Mayfield Creek is a prestressed concrete box beam or girders - multiple carrying KY-307 over West Fork Mayfield Creek in Carlisle County, Kentucky. It was built in 1977, so it is 48 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 1,197 vehicles a day, roughly 11% of them trucks, projected to reach 1,197 by 2041. The structure is 331 ft (101 m) long and 39 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesKY-307
CrossesWest Fork Mayfield Creek
Location1.9 MI Sou. of JCT Ky 121
RouteState Highway 307
CountyCarlisle County
StateKentucky
Coordinates36.83833, -88.86444
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating51 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length331 ft (101 m)
Longest span33 ft (10.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,197 (2021)
Projected traffic1,197 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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-307 over West Fork Mayfield Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is KY-307 over West Fork Mayfield 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 April 2023.

How much traffic does KY-307 over West Fork Mayfield Creek carry?

About 1,197 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is KY-307 over West Fork Mayfield Creek?

The structure is 331 ft (101 m) long with a longest span of 33 ft (10.1 m) and a deck 39 ft wide.

Who owns KY-307 over West Fork Mayfield Creek?

It is owned by the State Highway Agency.