High Quality Content by WIKIPEDIA articles! The Portsmouth Bypass is a proposed four-lane limited-access divided highway rerouting through traffic around the cities of Portsmouth and New Boston in Scioto County, Ohio, United States. In addition to providing better mobility within the local area for residents, the bypass has the potential to increase the economic development of the local area. Final design plans are currently undergoing development; construction is scheduled to begin in 2011 after property acquisition is completed which began in 2006.