US Bridges

I-75 Nc over 3rd-4th-5th Sts Covingto

Fair

Kenton County, Kentucky · Approach to Brent Spence · Structure no. 059B00040N

Built
1963
62 years old, rebuilt 2007
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
3,133 ft
1 main span
Daily traffic
132,112
2020 count
Owner
State
State Highway Agency

About this bridge

I-75 Nc over 3rd-4th-5th Sts Covingto is a steel stringer/multi-beam or girder carrying I-75 Nc over 3rd-4th-5th Sts Covingto in Kenton County, Kentucky. It was built in 1963 and reconstructed in 2007, so it is 62 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 5 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 132,112 vehicles a day, roughly 15% of them trucks, projected to reach 145,323 by 2040. The structure is 3,133 ft (954.9 m) long and 36 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

CarriesI-75 Nc
Crosses3rd-4th-5th Sts Covingto
LocationApproach to Brent Spence
RouteInterstate 75
Coordinates39.08682, -84.52281
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating28.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+43 approach)
Design loadHS 20
Structure length3,133 ft (954.9 m)
Longest span75 ft (22.9 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132,112 (2020)
Projected traffic145,323 by 2040
Trucks15%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed61.5 mi (99 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 Nc over 3rd-4th-5th Sts Covingto built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2007.

What condition is I-75 Nc over 3rd-4th-5th Sts Covingto 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 September 2024.

How much traffic does I-75 Nc over 3rd-4th-5th Sts Covingto carry?

About 132,112 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is I-75 Nc over 3rd-4th-5th Sts Covingto?

The structure is 3,133 ft (954.9 m) long with a longest span of 75 ft (22.9 m) and a deck 36 ft wide.

Who owns I-75 Nc over 3rd-4th-5th Sts Covingto?

It is owned by the State Highway Agency.