US Bridges

Middle Knottsville over Blackford Creek

FairPosted for load

Hancock County, Kentucky · .9 MI NE of Daviess Co.Ln · Structure no. 046C00035N

Built
1984
41 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
96 ft
3 main spans
Daily traffic
131
2006 count
Owner
County
County Highway Agency

About this bridge

Middle Knottsville over Blackford Creek is a prestressed concrete box beam or girders - multiple carrying Middle Knottsville over Blackford Creek in Hancock County, Kentucky. It was built in 1984, so it is 41 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 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 131 vehicles a day, projected to reach 154 by 2026. The structure is 96 ft (29.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMiddle Knottsville
CrossesBlackford Creek
Location.9 MI NE of Daviess Co.Ln
RouteCounty Highway 1001
Coordinates37.82611, -86.83083
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.1 US tons
Inventory rating28.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span43 ft (13.1 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic131 (2006)
Projected traffic154 by 2026
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

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 Middle Knottsville over Blackford Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Middle Knottsville over Blackford 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 October 2023.

How much traffic does Middle Knottsville over Blackford Creek carry?

About 131 vehicles per day (2006 count).

How long is Middle Knottsville over Blackford Creek?

The structure is 96 ft (29.3 m) long with a longest span of 43 ft (13.1 m) and a deck 24 ft wide.

Who owns Middle Knottsville over Blackford Creek?

It is owned by the County Highway Agency.