US Bridges

KY-1820 over Branch of Mayfield Creek

FairPosted for load

Graves County, Kentucky · .70 MI East of JCT Ky 339 · Structure no. 042B00270N

Built
1968
57 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
628
2021 count
Owner
State
State Highway Agency

About this bridge

KY-1820 over Branch of Mayfield Creek is a prestressed concrete box beam or girders - multiple carrying KY-1820 over Branch of Mayfield Creek in Graves County, Kentucky. It was built in 1968, so it is 57 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 628 vehicles a day, projected to reach 628 by 2041. The structure is 42 ft (12.8 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesKY-1820
CrossesBranch of Mayfield Creek
Location.70 MI East of JCT Ky 339
RouteState Highway 1820
CountyGraves County
StateKentucky
Coordinates36.94611, -88.71139
Functional classRural Minor 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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.8 US tons
Inventory rating26.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic628 (2021)
Projected traffic628 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
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$106,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-1820 over Branch of Mayfield Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is KY-1820 over Branch 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 August 2024.

How much traffic does KY-1820 over Branch of Mayfield Creek carry?

About 628 vehicles per day (2021 count).

How long is KY-1820 over Branch of Mayfield Creek?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 21 ft wide.

Who owns KY-1820 over Branch of Mayfield Creek?

It is owned by the State Highway Agency.