The Metropolitan St. Louis Sewer District (MSD) awarded a professional engineering services contract to Jacobs. The Lower and Middle River des Perest CSO Controls System Improvements in St. Louis, Missouri has an estimated construction value of USD 1bn and is expected to complete by around 2030.

A Jacobs spokesman said on Wednesday, “The project is part of the MSD’s CSO Long-Term Control Plan (LTCP) and proposed federal consent decree. It includes design of four primary features: tunnels, high rate treatment systems, pump stations and near surface facilities.

“This is the most complex and the largest of the projects included in the LTCP and proposed consent decree program. Jacobs is also managing several sub-consultants that are assisting with design.”

Jacobs Group vice president Kevin McMahon added, “We are very pleased to work with MSD on this complex project to help meet the proposed consent decree requirements. We look forward to continuing our relationship with them as a highly valued client.”

The EPA announced last August that MSD had agreed “to make extensive improvements to its sewer systems and treatment plants, at an estimated cost of $4.7 billion over 23 years, to eliminate illegal overflows of untreated raw sewage.”