Sewer tunnel to provide overflow relief in Columbus, OH

摘要

Construction has begun on a hard rock stormwater overflow and relief sewer tunnel 180-foot below the surface in Columbus, Ohio. The nearly 4.5-mile-long tunnel has a 20-foot diameter and will further limit combined sewer overflows (CSOs) into the Olentangy and Scioto rivers. Construction management for the tunnel project is being provided by Black & Veatch (B&V), in association with H.R. Gray, which will augment the existing Olentangy Scioto Interception Sewer (OSIS).