US Bridges

I-275 WB over I-75 N&s-Ramps G-D

Fair

Kenton County, Kentucky · WBI275@I75 · Structure no. 059B00054L

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
416 ft
4 main spans
Daily traffic
42,612
2023 count
Owner
State
State Highway Agency

About this bridge

I-275 WB over I-75 N&s-Ramps G-D is a steel continuous stringer/multi-beam or girder carrying I-275 WB over I-75 N&s-Ramps G-D 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 42,612 vehicles a day, roughly 7% of them trucks, projected to reach 46,873 by 2043. The structure is 416 ft (126.9 m) long and 55 ft wide.

Location

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CarriesI-275 WB
CrossesI-75 N&s-Ramps G-D
LocationWBI275@I75
RouteInterstate 275
CountyKenton County
StateKentucky
Coordinates39.03472, -84.59944
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating46.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length416 ft (126.9 m)
Longest span121 ft (36.8 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,612 (2023)
Projected traffic46,873 by 2043
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesThird level (interchange)
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$2.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-275 WB over I-75 N&s-Ramps G-D built?

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

What condition is I-275 WB over I-75 N&s-Ramps G-D 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-275 WB over I-75 N&s-Ramps G-D carry?

About 42,612 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-275 WB over I-75 N&s-Ramps G-D?

The structure is 416 ft (126.9 m) long with a longest span of 121 ft (36.8 m) and a deck 55 ft wide.

Who owns I-275 WB over I-75 N&s-Ramps G-D?

It is owned by the State Highway Agency.