US Bridges

I-75 Nc over 11th-12th-LEWIS in Cvngt

Fair

Kenton County, Kentucky · SBL-.3M N-Jefferson ST Op · Structure no. 059B00044L

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

About this bridge

I-75 Nc over 11th-12th-LEWIS in Cvngt is a concrete continuous tee beam carrying I-75 Nc over 11th-12th-LEWIS in Cvngt 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 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 79,675 vehicles a day, roughly 14% of them trucks, projected to reach 87,643 by 2037. The structure is 684 ft (208.5 m) long and 89 ft wide.

Location

Open in Google Maps
CarriesI-75 Nc
Crosses11th-12th-LEWIS in Cvngt
LocationSBL-.3M N-Jefferson ST Op
RouteInterstate 75
CountyKenton County
StateKentucky
Coordinates39.07667, -84.52
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 inspectionNovember 2023
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 geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating78.2 US tons
Inventory rating46.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+9 approach)
Design loadHS 20
Structure length684 ft (208.5 m)
Longest span80 ft (24.4 m)
Deck width89 ft (27.1 m)
Roadway width86 ft (26.2 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$4.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 Nc over 11th-12th-LEWIS in Cvngt built?

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

What condition is I-75 Nc over 11th-12th-LEWIS in Cvngt 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 11th-12th-LEWIS in Cvngt carry?

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

How long is I-75 Nc over 11th-12th-LEWIS in Cvngt?

The structure is 684 ft (208.5 m) long with a longest span of 80 ft (24.4 m) and a deck 89 ft wide.

Who owns I-75 Nc over 11th-12th-LEWIS in Cvngt?

It is owned by the State Highway Agency.