US Bridges

I-75 S Ramp over I275-I75-G&D Ramps

Fair

Kenton County, Kentucky · WB I275 to SB I75 Rmp-Lvl · Structure no. 059B00056N

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
807 ft
6 main spans
Daily traffic
196,929
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 S Ramp over I275-I75-G&D Ramps is a steel continuous stringer/multi-beam or girder carrying I-75 S Ramp over I275-I75-G&D Ramps in Kenton 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 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 196,929 vehicles a day, roughly 15% of them trucks, projected to reach 216,621 by 2043. The structure is 807 ft (245.9 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI-75 S Ramp
CrossesI275-I75-G&D Ramps
LocationWB I275 to SB I75 Rmp-Lvl
RouteInterstate 75
CountyKenton County
StateKentucky
Coordinates39.03472, -84.59972
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 alignment7: Better than present minimum criteria
Operating rating73.9 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length807 ft (245.9 m)
Longest span158 ft (48.2 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic196,929 (2023)
Projected traffic216,621 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed1.9 mi (3 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$4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 S Ramp over I275-I75-G&D Ramps built?

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

What condition is I-75 S Ramp over I275-I75-G&D Ramps 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 2023.

How much traffic does I-75 S Ramp over I275-I75-G&D Ramps carry?

About 196,929 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I-75 S Ramp over I275-I75-G&D Ramps?

The structure is 807 ft (245.9 m) long with a longest span of 158 ft (48.2 m) and a deck 43 ft wide.

Who owns I-75 S Ramp over I275-I75-G&D Ramps?

It is owned by the State Highway Agency.