US Bridges

KY-21 over Walnut Meadow Branch

Fair

Madison County, Kentucky · 2.9 Miles East of Ky 52 · Structure no. 076B00089N

Built
1993
32 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
474
2020 count
Owner
State
State Highway Agency

About this bridge

KY-21 over Walnut Meadow Branch is a prestressed concrete box beam or girders - multiple carrying KY-21 over Walnut Meadow Branch in Madison County, Kentucky. It was built in 1993, so it is 32 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 474 vehicles a day, projected to reach 474 by 2040. The structure is 53 ft (16.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKY-21
CrossesWalnut Meadow Branch
Location2.9 Miles East of Ky 52
RouteState Highway 21
CountyMadison County
StateKentucky
Coordinates37.5925, -84.37222
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating56.5 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length53 ft (16.2 m)
Longest span52 ft (15.8 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic474 (2020)
Projected traffic474 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-21 over Walnut Meadow Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is KY-21 over Walnut Meadow Branch 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 2024.

How much traffic does KY-21 over Walnut Meadow Branch carry?

About 474 vehicles per day (2020 count).

How long is KY-21 over Walnut Meadow Branch?

The structure is 53 ft (16.2 m) long with a longest span of 52 ft (15.8 m) and a deck 32 ft wide.

Who owns KY-21 over Walnut Meadow Branch?

It is owned by the State Highway Agency.