City of Fairfield, Ohio
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City of Fairfield, Ohio

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Bypass 4 Widening Project Overview

Through cooperative planning by the City of Fairfield and Butler County Transportation Improvement District (TID), the SR 4 Bypass is being widened to four lanes from SR 4 to SR 129. A six lane section will run from Symmes Road to Tylersville Road. A Superstreet Intersection design will be utilized for the intersections of the Bypass with Hamilton-Mason, Tylersville and Symmes Roads. (local news clip and ODOT information/contacts)


Within the City of Fairfield, the intersection of the Bypass and Port Union Road will be widened; an additional bridge over the CSX railroad will be constructed; and the intersection of the Bypass with State Route 4/Ross Road will be modified to utilize a new Quadrant Roadway Intersection design that will split the traffic between multiple intersections, improving the flow of traffic.  See the links below for more information on this design.  FHWA's full Alternative Intersection and Interchanges Report can be viewed in its entirety at FHWA's website

In addition to the widening between SR 4 and SR 129, the TID is working on a potential plan for lanes north of Rt. 129. The initial widening, however, will only involve the Bypass to the south of SR 129.


LEFT TURN TRAFFIC PATTERN CHANGES at Route 4 - Starting January 2012
• Ross Road to Northbound Route 4
• Southbound Route 4 to Northbound Bypass 4
• Northbound Route 4 to Ross Road
• Southbound Bypass 4 to Southbound Route 4

Video Animations

Project Overview
5 Construction Phases
Project Update (May 23, 2011)

Changes at Port Union
Bypass 4 at Port Union - Before & After

Changes at Route 4 (Dixie Highway)
Bypass 4 at Route 4 - Before
Bypass 4 at Route 4 - After

Local Media Coverage
• WLWT Channel 5
• Cincinnati Enquirer
• Hamilton Journal (01/12)
• Hamilton Journal (06/10)
• Hamilton Journal (2010)
• Fairfield Flyer Articles
• Ohio APWP Corridors (pg 1-2)



The City of Fairfield, LJB Inc., and Sunesis Construction received the 2012 Donald C. Schramm Award from the American Society of Highway Engineers - Triko Valley Section for the category of construction projects over $3,000,000.

In addition, the project also was awarded an Honor Award from the American Council of Engineering Companies.

Donald C. Schramm Transportation Improvement Award

APWA Reporter

Public Works
City of Fairfield
8870 N. Gilmore Road
Fairfield, OH 45014
(513) 867-4200 (phone)
(513) 867-4205 (fax)