US Bridges

KY-8 over Twelve Mile Creek

Fair

Campbell County, Kentucky · .25 MI E of JCT Ky 1566 · Structure no. 019B00003N

Built
1946
79 years old, rebuilt 2022
Condition
Fair
inspected April 2024
Type
Truss - Thru
Steel
Length
246 ft
1 main span
Daily traffic
699
2021 count
Owner
State
State Highway Agency

About this bridge

KY-8 over Twelve Mile Creek is a steel truss - thru carrying KY-8 over Twelve Mile Creek in Campbell County, Kentucky. It was built in 1946 and reconstructed in 2022, so it is 79 years old, older 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 699 vehicles a day, roughly 11% of them trucks, projected to reach 699 by 2041. The structure is 246 ft (75 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKY-8
CrossesTwelve Mile Creek
Location.25 MI E of JCT Ky 1566
RouteState Highway 8
CountyCampbell County
StateKentucky
Coordinates38.96944, -84.30222
Functional classRural Major 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.5 US tons
Inventory rating32.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 15
Structure length246 ft (75 m)
Longest span147 ft (44.8 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic699 (2021)
Projected traffic699 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-8 over Twelve Mile Creek built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 2022.

What condition is KY-8 over Twelve Mile 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 April 2024.

How much traffic does KY-8 over Twelve Mile Creek carry?

About 699 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is KY-8 over Twelve Mile Creek?

The structure is 246 ft (75 m) long with a longest span of 147 ft (44.8 m) and a deck 27 ft wide.

Who owns KY-8 over Twelve Mile Creek?

It is owned by the State Highway Agency.