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Sun June 20 2021

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Black & Veatch to manage $500m St Louis sewer project

17 Dec 13 A Black & Veatch-led team is to oversee construction of up to seven sewer tunnels in St Louis, USA.

The Metropolitan St Louis Sewer District (MSD) selected the team to manage the construction of more than US$500m (£307m) in future tunnel projects. The tunnels are a significant part of the MSD’s Project Clear – a long-term, multi-billion dollar effort to address sewer overflows and basement backups throughout the St Louis area.

Black & Veatch is responsible for construction management of up to seven different tunnels across MSD’s service territory. The tunnels will range from 2.7m in diameter to more than 6m. The longest tunnel will be about 11km long. All tunnels will be approximately 45m to 76m below the surface. It will take approximately 15 to 20 years to complete all of the tunnels.

“Black & Veatch has a proven approach and successful track record regarding construction management of rock tunnels, particularly ones in karst formations such as the tunnels in progress for MSD,” said David Egger, senior vice president in Black & Veatch’s water business. “Deep tunnels provide a long-term solution for combined sewer overflows and sanitary sewer overflows in a manner that preserves community aesthetics and property values. Although each present major engineering and construction challenges, Black & Veatch has been successful at mitigating risks for our clients and keeping projects on schedule.”

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