US Bridges

Ky - 21 over Brushy Fork

GoodPosted for load

Madison County, Kentucky · .50 MI East of JCT US 25 · Structure no. 076B00115N

Built
2011
14 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
66 ft
2 main spans
Daily traffic
7,421
2023 count
Owner
State
State Highway Agency

About this bridge

Ky - 21 over Brushy Fork is a prestressed concrete continuous box beam or girders - single or spread carrying Ky - 21 over Brushy Fork in Madison County, Kentucky. It was built in 2011, so it is 14 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 7,421 vehicles a day, roughly 6% of them trucks, projected to reach 7,421 by 2043. The structure is 66 ft (20.1 m) long and 42 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesKy - 21
CrossesBrushy Fork
Location.50 MI East of JCT US 25
RouteState Highway 21
Coordinates37.56972, -84.28056
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length66 ft (20.1 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,421 (2023)
Projected traffic7,421 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Brushy Fork built?

It was built in 2011, making it 14 years old in 2025.

What condition is Ky - 21 over Brushy Fork in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Ky - 21 over Brushy Fork carry?

About 7,421 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Ky - 21 over Brushy Fork?

The structure is 66 ft (20.1 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns Ky - 21 over Brushy Fork?

It is owned by the State Highway Agency.