US Bridges

KY-121 over West Fork Clarks River

Fair

Calloway County, Kentucky · .60 MI East of JCT Ky 183 · Structure no. 018B00094N

Built
1977
48 years old
Condition
Fair
inspected April 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
266 ft
8 main spans
Daily traffic
1,817
2020 count
Owner
State
State Highway Agency

About this bridge

KY-121 over West Fork Clarks River is a prestressed concrete box beam or girders - multiple carrying KY-121 over West Fork Clarks River in Calloway 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 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 1,817 vehicles a day, roughly 8% of them trucks, projected to reach 1,817 by 2040. The structure is 266 ft (81 m) long and 45 ft wide. If it were closed, the detour would be 32.3 mi (52 km).

Location

Open in Google Maps
CarriesKY-121
CrossesWest Fork Clarks River
Location.60 MI East of JCT Ky 183
RouteState Highway 121
CountyCalloway County
StateKentucky
Coordinates36.64806, -88.43417
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.3 US tons
Inventory rating61.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans8
Design loadHS 20
Structure length266 ft (81 m)
Longest span31 ft (9.4 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,817 (2020)
Projected traffic1,817 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.3 mi (52 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-121 over West Fork Clarks River built?

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

What condition is KY-121 over West Fork Clarks River 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 2021.

How much traffic does KY-121 over West Fork Clarks River carry?

About 1,817 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is KY-121 over West Fork Clarks River?

The structure is 266 ft (81 m) long with a longest span of 31 ft (9.4 m) and a deck 45 ft wide.

Who owns KY-121 over West Fork Clarks River?

It is owned by the State Highway Agency.