The Chicago District, U.S. Army Corps of Engineers (USACE) is providing design and construction services to the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC) on the McCook Main Tunnel System (MTS) to connect the existing Mainstream Tunnel with the McCook Reservoir which is currently being excavated. Black & Veatch is performing the detailed design for the MTS project on behalf of USACE. The facilities design and construction has been divided into several design and construction packages. Black & Veatch responsibilities included complete geotechnical engineering, preliminary and final design for reservoir and tunnel connection facilities, shafts, and gates for the Mainstream tunnel connection to McCook Reservoir and Thorn Creek diversion tunnel to Thornton Composite Reservoir. Black & Veatch led the evaluation and screening of alignments alternatives and connections to surface facilities.

“Black & Veatch worked with us to incorporate state-of-the-art practices in deep rock grouting. They provided us with a high-quality set of plans and specifications that resulted in an extremely successful project.”