US Bridges

I-75 SB and Ramp over Donaldson RD (ky 236)

Good

Kenton County, Kentucky · .4 Mi.Ne Boone CO Line · Structure no. 059B00103N

Built
2000
25 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
160 ft
2 main spans
Daily traffic
196,929
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 SB and Ramp over Donaldson RD (ky 236) is a prestressed concrete box beam or girders - multiple carrying I-75 SB and Ramp over Donaldson RD (ky 236) in Kenton County, Kentucky. It was built in 2000, so it is 25 years old, younger than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 196,929 vehicles a day, roughly 15% of them trucks, projected to reach 216,621 by 2043. The structure is 160 ft (48.8 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 SB and Ramp
CrossesDonaldson RD (ky 236)
Location.4 Mi.Ne Boone CO Line
RouteInterstate 75
CountyKenton County
StateKentucky
Coordinates39.02611, -84.61306
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length160 ft (48.8 m)
Longest span106 ft (32.3 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic196,929 (2023)
Projected traffic216,621 by 2043
Trucks15%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 SB and Ramp over Donaldson RD (ky 236) built?

It was built in 2000, making it 25 years old in 2025.

What condition is I-75 SB and Ramp over Donaldson RD (ky 236) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does I-75 SB and Ramp over Donaldson RD (ky 236) carry?

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

How long is I-75 SB and Ramp over Donaldson RD (ky 236)?

The structure is 160 ft (48.8 m) long with a longest span of 106 ft (32.3 m) and a deck 55 ft wide.

Who owns I-75 SB and Ramp over Donaldson RD (ky 236)?

It is owned by the State Highway Agency.