US Bridges

KY-415 over Smith Creek

Fair

Clinton County, Kentucky · .40 MI SE JCT Ky 350 · Structure no. 027B00029N

Built
1985
40 years old, rebuilt 2023
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
220
2021 count
Owner
State
State Highway Agency

About this bridge

KY-415 over Smith Creek is a prestressed concrete box beam or girders - multiple carrying KY-415 over Smith Creek in Clinton County, Kentucky. It was built in 1985 and reconstructed in 2023, so it is 40 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.

It carries about 220 vehicles a day, projected to reach 220 by 2041. The structure is 73 ft (22.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesKY-415
CrossesSmith Creek
Location.40 MI SE JCT Ky 350
RouteState Highway 415
CountyClinton County
StateKentucky
Coordinates36.69306, -85.09222
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating94.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length73 ft (22.3 m)
Longest span69 ft (21 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2021)
Projected traffic220 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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-415 over Smith Creek built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2023.

What condition is KY-415 over Smith 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 December 2023.

How much traffic does KY-415 over Smith Creek carry?

About 220 vehicles per day (2021 count).

How long is KY-415 over Smith Creek?

The structure is 73 ft (22.3 m) long with a longest span of 69 ft (21 m) and a deck 28 ft wide.

Who owns KY-415 over Smith Creek?

It is owned by the State Highway Agency.