Engineering News Record Midwest selected the Olentangy Scioto Interceptor Augmentation and Relief Sewer (OARS) project for a Water/Environmental Award of Merit in their 2018 Best Projects awards. The $370 million project was one of 40 projects cited as the region’s best. A total of 106 project teams entered the competition, one of the strongest fields of innovative construction achievements yet, according to ENR Midwest. Winners were honored at ENR Midwest’s annual awards breakfast and featured in the November edition of ENR Midwest.
The 20-foot diameter, 23,300-foot long tunnel provides wet weather relief to the existing OSIS sewer, the main combined sewer through downtown Columbus, Ohio.