US Bridges

KY-9 over Flagg Spring Creek

FairPosted for load

Campbell County, Kentucky · 200 W JCT Ky 735 · Structure no. 019B00067N

Built
1989
36 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
2 main spans
Daily traffic
9,077
2022 count
Owner
State
State Highway Agency

About this bridge

KY-9 over Flagg Spring Creek is a prestressed concrete stringer/multi-beam or girder carrying KY-9 over Flagg Spring Creek in Campbell County, Kentucky. It was built in 1989, so it is 36 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. Its operating status is: posted for load restriction.

It carries about 9,077 vehicles a day, roughly 15% of them trucks, projected to reach 9,077 by 2042. The structure is 165 ft (50.2 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKY-9
CrossesFlagg Spring Creek
Location200 W JCT Ky 735
RouteState Highway 9
CountyCampbell County
StateKentucky
Coordinates38.89278, -84.2725
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.3 US tons
Inventory rating30.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length165 ft (50.2 m)
Longest span93 ft (28.3 m)
Deck width86 ft (26.2 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,077 (2022)
Projected traffic9,077 by 2042
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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-9 over Flagg Spring Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is KY-9 over Flagg Spring 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 August 2023.

How much traffic does KY-9 over Flagg Spring Creek carry?

About 9,077 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is KY-9 over Flagg Spring Creek?

The structure is 165 ft (50.2 m) long with a longest span of 93 ft (28.3 m) and a deck 86 ft wide.

Who owns KY-9 over Flagg Spring Creek?

It is owned by the State Highway Agency.