US Bridges

I-275 over Ky 9

Fair

Campbell County, Kentucky · WB Off Ramp Over&to Ky 9 · Structure no. 019B00047N

Built
1971
54 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
270 ft
4 main spans
Daily traffic
100,416
2023 count
Owner
State
State Highway Agency

About this bridge

I-275 over Ky 9 is a steel stringer/multi-beam or girder carrying I-275 over Ky 9 in Campbell County, Kentucky. It was built in 1971, so it is 54 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 100,416 vehicles a day, roughly 8% of them trucks, projected to reach 110,457 by 2043. The structure is 270 ft (82.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-275
CrossesKy 9
LocationWB Off Ramp Over&to Ky 9
RouteInterstate 275
CountyCampbell County
StateKentucky
Coordinates39.02417, -84.48083
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 geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.9 US tons
Inventory rating43.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length270 ft (82.4 m)
Longest span77 ft (23.6 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100,416 (2023)
Projected traffic110,457 by 2043
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-275 over Ky 9 built?

It was built in 1971, making it 54 years old in 2025.

What condition is I-275 over Ky 9 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-275 over Ky 9 carry?

About 100,416 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I-275 over Ky 9?

The structure is 270 ft (82.4 m) long with a longest span of 77 ft (23.6 m) and a deck 29 ft wide.

Who owns I-275 over Ky 9?

It is owned by the State Highway Agency.