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Ross-207 Extension
Plans are in development for the construction of a two-lane roadway to extend S.R. 207
from its terminus at U.S.23 to S.R. 159 in northern Ross County. The project will also include
the improvement of S.R. 159 and S.R. 180 to address identified safety concerns.
For more information, read the project description below and follow the links to
press releases, site maps, handouts, videos and frequently asked questions
that relate to the design, environmental features and construction for this project.

 Project Description

​​The Ross-207 Extension project (PID: 93744) calls for the construction of a new, two-lane roadway - S.R. 207 - between U.S. 23 and S.R. 159. To the west, the new route will connect at the terminus with U.S. 23 at the existing interchange, and to the east, the roadway will connect at S.R. 159 between Delano Road and S.R. 180. In addition to addressing other improvements, roundabouts will be constructed at the new route's junction with S.R. 159 and at the junction of S.R. 180 and S.R. 159.
The purpose of the project is to provide system linkage between these routes, as well as provide transportation infrastructure and access to support existing land uses and economic development initiatives. The project will also improve safety for motorists traveling along the S.R. 159/S.R. 180 corridors and at the U.S. 23/S.R. 159 interchange. Funded with local, state and federal monies, construction is estimated to cost $8 million. Preliminary operations and construction began in October 2019, and the entire project is scheduled to be completed in the summer of 2020.

 Project Background

The Ross-207 project stems from a local and state effort to address the county’s transportation infrastructure needs in relation to ongoing and anticipated growth and development, specifically in and around the city of Chillicothe, that was first identified in the 1998 Ross County Thoroughfare Plan. Also included in the plan was the construction of Veterans Parkway; the partial interchanges at U.S. 35 and Pleasant Valley; the widening of S.R. 104; and the first S.R. 207 connector to create a segmented bypass around the county's northern corridor. And while construction and upgrades to these facilities have been completed, the Ross-207 Extension is the final component to complete the connectivity of the county’s primary two-lane state highway system to U.S. 23 and U.S. 35.  
Working with local officials, ODOT began preliminary development of the Ross-207 Extension project in 2011, and by the spring of 2014, a preferred alternative (Alternative A) to extend the route from U.S. 23 to the junction of S.R. 159 and S.R. 180 was selected. However, due to subsequent environmental studies that identified an impact to a Category 3 wetland identified as a fen within the project alignment, the project has been redesigned and the alignment moved slightly south to avoid this unique ecological resource. As a result, the new alternative (Alternative B2) will connect the roadway to S.R. 159 with a roundabout, and a second roundabout will be constructed at the junction of S.R. 159 and S.R. 180 to aid in the movement of traffic and enhance safety.
Click HERE for a downloadable handout about the upcoming S.R. 207 Extension Project!

 Site Maps


Click on the images below for a larger, downloadable rendering of each schematic.  

ROS-207 Overall Project Rendering
ROS 207 Overall Exhibit.jpg

 SR159-SR180 Junction          SR207-SR159 Junction

SR 159 SR 180 Exhibit.jpg SR 207 SR 159 Exhibit.jpg

 Public Meeting Handout


Final Handout ROS-207-0.00-1.jpgClick on the image above for a copy of the public meeting handout, which can be downloaded and printed.


 News Releases




Roundabouts are one of the most effective intersection control treatments available with the added benefit of calming traffic. They limit vehicle speeds to approximately 20 mph and can control vehicle speeds on four roads simultaneously. Roundabouts typically reduce crashes by 40 to 60 percent, reduce injury by 35 to 80 percent and almost completely eliminate incapacitating injury and fatal crashes. Community gateways and main roadways are effective locations for roundabouts as they slow traffic and provide space for an aesthetically pleasing entrance treatment.

​For more information concerning roundabouts, visit our separate web page by clicking here. You may also download the Frequently Asked Questions, Driving in Roundabouts and Rural Roundabouts informational sheets below by clicking on the images below.




 Roundabout Videos


​Watch the videos below to learn more about roundabouts and driving in them. Additional information regarding intersection safety and the implementation of roundabouts can also be found on the Federal Highway Safety Administration's web site.

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 Public Comments


 Online Comment Form


 Additional Resources