About the Project

About the Project
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Project Abstract


The Ohio Department of Transportation has contracted with TranSystems Corporation to study alternatives that will

  • improve traffic flow

  • enhance safety

  • minimize impacts to adjacent properties along I-75

from the Paddock Road interchange on the north and the Western Hills Viaduct interchange on the south.  In addition, studies will contain a portion of I-74 from the I-75 interchange to the Colerain interchange and the Norwood Lateral (SR 562) from the I-75 interchange to the Paddock Road interchange.  The study area includes portions of the City of Cincinnati, City of St. Bernard, and the Village of Elmwood Place.


For additional information including Study Area Map, click on the About the Project link. 

Project Background 

In 2000, the Ohio-Kentucky-Indiana Regional Council of Governments (OKI) and the Miami Valley Regional Planning Commission (MVRPC) cooperated on a regional multi-modal transportation plan named the North South Transportation Initiative (NSTI). 


The NSTIís focus was to determine ways to improve safety, efficiency and reliability of the transportation networks within Southwest Ohio, Northern Kentucky and Southeast Indiana.  Several projects emerged from the NSTI as priorities.  Based on analysis of the existing and future travel corridors and public and stakeholder input, this section of I-75 ranked high in terms of importance. 


The I-75 Mill Creek Expressway study is intended to build upon this major investment study and refine the recommendations within this portion of I-75.


 Study Area


  • Along I-75: Paddock to Western Hills (7.8 miles)
    Includes the interchanges of Towne, Mitchell, I-74 and Hopple.

  • Along I-74: Montana to I-75 (2.1 miles)
    Includes the interchanges of Colerain and Spring Grove/Elmore/Powers.

  • Along SR 562 (Norwood Lateral): Paddock to I-75 (1 mile)



Click on the map above for a larger view of the study area. (Acrobat Reader is  required to view the image. Click here for a free download.)


Adjacent Projects 


The I-75 Mill Creek Expressway project serves as the link between two additional I-75 studies within Hamilton County stemming from the original NSTI recommendations. 

 To the north, the Thru the Valley project involves the evaluation of I-75 from Paddock Road (on the south) to I-275 (on the north).  This project will evaluate alternatives to improve traffic flow, improve safety and minimize adjacent impacts. 


To the south, the Brent Spence Bridge project involves the evaluation of I-75 from Dixie Highway in Northern Kentucky (on the south) to Western Hills (on the north). This project will evaluate alternatives to improve traffic flow, improve safety and minimize adjacent impacts.


Sharing the eastern boundary of the I-75 Mill Creek Expressway Project is the Uptown Transportation Study which is examining the transportation infrastructure on several of Cincinnatiís neighborhoods.  A major component of the Uptown Transportation Study is the access to interstate highways bordering the Uptown area, including I-75.


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Last updated: 02/10/09.