Austin Pike at I-75 Interchange project

Current Activities

The Ohio Department of Transportation (ODOT) is considering several alternatives in an effort to improve access to and from Interstate 75 and ease congestion on adjacent state routes and their existing interchanges with I-75.

Austin Pike Preferred Alternative

The preferred alternative was recommended during an open house public meeting on Monday, May 1, 2006. Several handouts and exhibits were presented at the public meeting.

ODOT has proposed building a Continuous Flow Interchange (CFI) at the intersection of Rt. 741 and Austin Pike. CFI is a relatively new method for constructing intersections. ODOT has prepared animations to depict the traffic flow for either a 2-Leg CFI or 4-Leg CFI.

  • A general information handout was distributed at the meeting.  This file also includes the comment sheet that can be filled out and returned to the District 7 Office in Sidney by May 15th.
  • Two alternatives for the interchange at I-75 were presented.
    Option 1: A tight diamond interchange
    Option 2: A regular diamond interchange (ODOT preferred)
    Difference between two interchanges:
    In the tight diamond the four ramps are closer to the center of the interchange so retaining walls would be needed. This option would be harder and more expensive to construct and maintain. The standard diamond would take more land and the Kendell Office Park (the tight diamond only takes their front parking lot). However, it would allow for more flexibility with updates in the future and current aesthetics.
    Tight Diamond Construction Cost: 12.7 Million
    Standard Diamond Construction Cost: 9 Million
  • Cross sections for Miamisburg-Springboro Pike and Wood Roads.
  • The project area is shown on this map from the environmental study.
  • Several other exhibits were presented:

 

Other Related Projects

There are several separate transportation projects in the area of the Austin Pike Interchange project. Some information is available below.

Austin Pike Widening and Realigning update

As a result of changes in expected funding sources, the original scope of the project to realign and improve Austin Pike between SR-741 and Washington Church Road has been modified by the Montgomery County Engineer's Office. Updated information is now available.

Austin Pike Relocation Open House Public Meeting

The Montgomery County Engineer's Office is proposing to realign and improve Austin Pike between SR-741 and Washington Church Road, just north of the Dayton Wright Brothers Airport. The public is invited to attend an open house public meeting providing information about this project on Thursday, March 6, from 4:30 to 7:30 p.m. at the Dayton Wright Brothers Airport, 10600 Springboro Pike. More information is available on

Byers Road Public Meeting

The Montgomery County Transportation Improvement District (MCTID) and other local project sponsors are proposing to realign and widen Byers Road from Technical Drive to Miamisburg-Springboro Pike. This project will coincide with the proposed interchange at I-75 and Austin Pike/Miamisburg-Springboro Pike to improve the flow of traffic in this area and better serve the needs of the traveling public. The MCTID, in coordination with the Ohio Department of Transportation and other project sponsors, has developed various alternatives for the realignment. From those efforts, a preferred alternative has been selected.

The public is invited to attend an open house public meeting for this project on Wednesday, November 14, 2007 from 5:00 to 7:00 p.m. at the Dayton-Wright Brothers Airport, 10600 Springboro Pike. At this meeting, attendees will have the opportunity to view displays depicting the planned improvements and documenting the need for such improvements, as well as the potential effects of construction on surrounding properties. No formal presentation will be given.