The major route of US 23 is located on the east side of town and the industrial area is located on the west, resulting in the need for a new roadway to bypass the busy downtown area. Once completed, the $17 million project will link US 95 West to US 23 and Marion- Williamsport Road with a 2.5 mile road. The new route will alleviate heavy truck traffic carrying hazardous cargo through downtown Marion, decrease emergency response time and provide economic development opportunities for future expansion of Marion’s industrial section.
Construction of the roadway required the installation of two stream crossings. The south bridge structure was located in a highly sensitive area in which remediation to clean up hazardous by-products of an old manufacturing plant had already been completed. In order to maintain the recently restored area, the new structure needed a clear span to provide a natural stream channel without impacting the environment any further.
A 48’ x 11’ x 112’ and a 42’ x 12’ x 72’ CON/SPAN® Bridge System, including precast headwalls and wingwalls, were utilized to provide stream crossings with a natural bottom. CON/SPAN’s complete system was chosen for the project due to its clear span, economical design, quick installation and low maintenance.
“CON/SPAN has provided an economical construction alternative along with a modern aesthetic product for our new industrial bypass,” stated Bradley Irons, P.E., P.S., Marion County Engineer, with the Marion County Engineer’s Office.
In addition, the structures were able to meet the roadway alignment and grade separations requirements of the project. The project was funded by Ohio Rail Development Commission, Federal Government ARRA Stimulus Bill, the Ohio Department of Development, Ohio Public Works, City of Marion, Marion County Commissioners and Marion County Engineer’s Office. The project is scheduled to be completed in 2012.