US Bridges

Windmill Drive over Balls Fork

Good

Knott County, Kentucky · 0.01 M E of JCT KY-1087 · Structure no. 060C00102N

Built
2023
2 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

Windmill Drive over Balls Fork is a prestressed concrete box beam or girders - multiple carrying Windmill Drive over Balls Fork in Knott County, Kentucky. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 49 by 2044. The structure is 68 ft (20.7 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesWindmill Drive
CrossesBalls Fork
Location0.01 M E of JCT KY-1087
RouteCounty Highway 1396
CountyKnott County
StateKentucky
Coordinates37.39583, -83.05389
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length68 ft (20.7 m)
Longest span67 ft (20.3 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic49 by 2044
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Windmill Drive over Balls Fork built?

It was built in 2023, making it 2 years old in 2025.

What condition is Windmill Drive over Balls 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 June 2024.

How much traffic does Windmill Drive over Balls Fork carry?

About 40 vehicles per day (2024 count).

How long is Windmill Drive over Balls Fork?

The structure is 68 ft (20.7 m) long with a longest span of 67 ft (20.3 m) and a deck 16 ft wide.

Who owns Windmill Drive over Balls Fork?

It is owned by the County Highway Agency.