US Bridges

I-75 Nc over Ninth ST in Covington

Fair

Kenton County, Kentucky · Sbl .4M S of 5th ST Ntrch · Structure no. 059B00038L

Built
1960
65 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
159 ft
3 main spans
Daily traffic
79,675
2017 count
Owner
State
State Highway Agency

About this bridge

I-75 Nc over Ninth ST in Covington is a concrete tee beam carrying I-75 Nc over Ninth ST in Covington in Kenton County, Kentucky. It was built in 1960, so it is 65 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 79,675 vehicles a day, roughly 14% of them trucks, projected to reach 87,643 by 2037. The structure is 159 ft (48.5 m) long and 91 ft wide.

Location

Open in Google Maps
CarriesI-75 Nc
CrossesNinth ST in Covington
LocationSbl .4M S of 5th ST Ntrch
RouteInterstate 75
CountyKenton County
StateKentucky
Coordinates39.07889, -84.52167
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating89.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length159 ft (48.5 m)
Longest span50 ft (15.2 m)
Deck width91 ft (27.7 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79,675 (2017)
Projected traffic87,643 by 2037
Trucks14%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 Nc over Ninth ST in Covington built?

It was built in 1960, making it 65 years old in 2025.

What condition is I-75 Nc over Ninth ST in Covington 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 November 2023.

How much traffic does I-75 Nc over Ninth ST in Covington carry?

About 79,675 vehicles per day (2017 count), of which roughly 14% are trucks.

How long is I-75 Nc over Ninth ST in Covington?

The structure is 159 ft (48.5 m) long with a longest span of 50 ft (15.2 m) and a deck 91 ft wide.

Who owns I-75 Nc over Ninth ST in Covington?

It is owned by the State Highway Agency.