The long-running Back Cove South Storage Facility (BCSSF) design-build project in Portland, Maine, led by Sargent, has been completed, resulting in significantly improved water quality by reducing combined sewer overflows (CSOs) into Casco Bay. The project involved constructing a four-tank underground CSO storage facility with a capacity of 3.5 million gallons, utilizing over 17,000 cubic yards of concrete, along with a “smart system” of chopper pumps, stainless steel tipping buckets, and a SCADA system for managing flow and self-cleaning. Despite delays caused by challenging poor soil conditions, the project successfully brought 7.5 million gallons of total CSO storage capacity online for the City of Portland across three completed projects. The site near Back Cove Park was also rebuilt to include sod playing fields, an underground irrigation system, a fitness course, and a rebuilt Back Cove Trail system. A grand opening occurred on September 5th.
Back to all projects