US Bridges

US-51 over Fork of Mayfield Creek

FairPosted for load

Carlisle County, Kentucky · Immedtly NW of JCT Ky 120 · Structure no. 020B00007N

Built
1920
105 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
24 ft
1 main span
Daily traffic
1,707
2021 count
Owner
State
State Highway Agency

About this bridge

US-51 over Fork of Mayfield Creek is a concrete tee beam carrying US-51 over Fork of Mayfield Creek in Carlisle County, Kentucky. It was built in 1920, so it is 105 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. Its operating status is: posted for load restriction.

It carries about 1,707 vehicles a day, roughly 25% of them trucks, projected to reach 1,707 by 2041. The structure is 24 ft (7.3 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesUS-51
CrossesFork of Mayfield Creek
LocationImmedtly NW of JCT Ky 120
RouteU.S. Route 51
CountyCarlisle County
StateKentucky
Coordinates36.90806, -89.04556
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating33.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length24 ft (7.3 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,707 (2021)
Projected traffic1,707 by 2041
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$84,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US-51 over Fork of Mayfield Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is US-51 over Fork of 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 US-51 over Fork of Mayfield Creek carry?

About 1,707 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is US-51 over Fork of Mayfield Creek?

The structure is 24 ft (7.3 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns US-51 over Fork of Mayfield Creek?

It is owned by the State Highway Agency.