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 Improve the northbound curve on I-75 at SR 4 - "Malfunction Junction." Reduce the northbound sharp 90 degree angle to a softer curve. New interstate lanes are relocated and widened over the river. Increase the overall capacity of the interstate with an additional lane in each direction. The existing I-75 northbound lanes crossing the river are reconstructed and utilized as ramps. Widen Main St. and improve SR 48 (Main St.) entrance and exit ramps. Provide access to SR 48 (Main St.) from southbound SR 4. Combine the Grand Ave. ramps with the improved Main St. ramps.

Stanley Avenue Project: Remove circle ramps, remove ramps at Neva Dr. and Leo St., signalize Stanley Ave., construct standard ramp at Stanley to northbound I-75.


 Construction Information


Upcoming Milestone Dates

The Project is 93% Complete

Estimated Completion Date: September 2011

Arrow boards and signs will be in place prior to the work zone to alert motorists of the upcoming lane closures. Law enforcement will be on site to monitor traffic flow.


 Project Detour Maps


 Project Logistics


Start Date: October 19, 2007
Estimated Completion Date: October 2011

I-75 and SR 4 Downtown Dayton Phase 1A

  • Estimated Construction Cost: $122 million
  • Estimated Overall Cost: $157 million

Stanley Avenue

  • Estimated Construction Cost: $14 million
  • Estimated Overall Cost: $17 million

Project Location

  • i-75 / SR 4 interchange and stanley ave.


 Project Benefits:


  •  Right - hand exits and entrances
  • increased spacing between ramps
  • consolidated local access to ramps
  • better traffic flow
  • fewer incidents and related congestion


 Project Updates

To recieve project updates via email, Please click the link below.

 Buckeye Traffic

  Visit ODOT's Buckeye Traffic, which provides up to date construction information and reports of other major evnts that slow or detour traffic on Ohio's highways.


021908 Revised Stanley Fact Sheet.pdf
1205 KB
112707 Fact Sheet.pdf
1752 KB
Construction Schedule.pdf
12247 KB
Phase 1A 75 design packet2.pdf
1276 KB

 Phase 1A Newsletters

January2012Newsletter.pdfJanuary2012Newsletter252 KB
October2011Newsletter.pdfOctober2011Newsletter246 KB
June2011Newsletter.pdfJune2011Newsletter118 KB
May2011Newsletter.pdfMay2011Newsletter177 KB
April2011Newsletter.pdfApril2011Newsletter135 KB
March2011Newsletter.pdfMarch2011Newsletter135 KB
February2011Newsletter.pdfFebruary2011Newsletter117 KB
January2011Newsletter.pdfJanuary2011Newsletter109 KB
December2010Newsletter.pdfDecember2010Newsletter227 KB
November2010Newsletter.pdfNovember2010Newsletter211 KB
October2010Newsletter.pdfOctober2010Newsletter155 KB
September2010Newsletter.pdfSeptember2010Newsletter189 KB
July2010Newsletter.pdfJuly2010Newsletter150 KB
June2010Newsletter.pdfJune2010Newsletter159 KB
May2010 Newsletter.pdfMay2010 Newsletter177 KB
April2010 Newsletter.pdfApril2010 Newsletter231 KB
March2010 Newsletter.pdfMarch2010 Newsletter231 KB
February2010 Newsletter.pdfFebruary2010 Newsletter243 KB
May08Newsletter.pdfMay08Newsletter4166 KB
May09Newsletter.PDFMay09Newsletter222 KB
Nov08Newsletter.pdfNov08Newsletter417 KB
Oct08Newsletter.pdfOct08Newsletter766 KB
November09 Newsletter.pdfNovember09 Newsletter180 KB
Oct09newsletter.pdfOct09newsletter445 KB
Sept08Newsletter.pdfSept08Newsletter853 KB
Sept09Newsletter.pdfSept09Newsletter187 KB
Mar09Newsletter.pdfMar09Newsletter313 KB
JuneNewsletter.PDFJuneNewsletter222 KB
June08Newsletter.pdfJune08Newsletter3951 KB
July09Newsletter.PDFJuly09Newsletter221 KB
July08Newsletter.pdfJuly08Newsletter4096 KB
Jan09Newsletter.pdfJan09Newsletter364 KB
Feb09Newsletter.pdfFeb09Newsletter227 KB
Dec08Newsletter.pdfDec08Newsletter374 KB
August09 Newsletter.pdfAugust09 Newsletter187 KB
Aug08Newsletter.pdfAug08Newsletter857 KB
Apr09Newsletter.PDFApr09Newsletter327 KB

 Project Photos


 Contact Information


Any questions or concerns regarding this page or project
Please contact the Public Information Officer

(937) 497-6820