US Bridges

I-471 over Ramp K

Fair

Campbell County, Kentucky · I-471 SB Ramp to KY8 · Structure no. 019B00064N

Built
1988
37 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
99,284
2022 count
Owner
State
State Highway Agency

About this bridge

I-471 over Ramp K is a prestressed concrete stringer/multi-beam or girder carrying I-471 over Ramp K in Campbell County, Kentucky. It was built in 1988, so it is 37 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 99,284 vehicles a day, roughly 8% of them trucks, projected to reach 109,212 by 2042. The structure is 77 ft (23.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-471
CrossesRamp K
LocationI-471 SB Ramp to KY8
RouteInterstate 471
CountyCampbell County
StateKentucky
Coordinates39.09833, -84.49083
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span72 ft (21.8 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99,284 (2022)
Projected traffic109,212 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$282,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-471 over Ramp K built?

It was built in 1988, making it 37 years old in 2025.

What condition is I-471 over Ramp K 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 I-471 over Ramp K carry?

About 99,284 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is I-471 over Ramp K?

The structure is 77 ft (23.5 m) long with a longest span of 72 ft (21.8 m) and a deck 29 ft wide.

Who owns I-471 over Ramp K?

It is owned by the State Highway Agency.