US Bridges

I-75 SB over Donaldson RD (ky 236)

Good

Kenton County, Kentucky · .4 Mi. NE Boone CO Line · Structure no. 059B00102L

Built
2001
24 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
160 ft
2 main spans
Daily traffic
98,465
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 SB over Donaldson RD (ky 236) is a prestressed concrete box beam or girders - multiple carrying I-75 SB over Donaldson RD (ky 236) in Kenton County, Kentucky. It was built in 2001, so it is 24 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 98,465 vehicles a day, roughly 15% of them trucks, projected to reach 108,311 by 2043. The structure is 160 ft (48.8 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesI-75 SB
CrossesDonaldson RD (ky 236)
Location.4 Mi. NE Boone CO Line
RouteInterstate 75
CountyKenton County
StateKentucky
Coordinates39.02583, -84.61278
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 geometry8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating60.3 US tons
Inventory rating36.2 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 width63 ft (19.2 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98,465 (2023)
Projected traffic108,311 by 2043
Trucks15%
Lanes on structure3
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 2001, making it 24 years old in 2025.

What condition is I-75 SB 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 over Donaldson RD (ky 236) carry?

About 98,465 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I-75 SB 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 63 ft wide.

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

It is owned by the State Highway Agency.