A-2 Reservoir Foundation & Cutoff Wall

As part of the Central Everglades Planning Project (CEPP), the U.S. Army Corps of Engineers is enhancing the quality, quantity, timing, and distribution of water across South Florida’s ecosystems — from the Northern Estuaries to Florida Bay. Achieving this requires a large reservoir capable of storing and managing water at scale, while overcoming challenging geotechnical and hydrological conditions in Palm Beach County. The project site presents complex surface and groundwater dynamics, demanding precise foundation preparation to support the embankment dam structure.

In a joint venture with Odin Construction Solutions, the Forgen team was awarded the $492 million Everglades Agricultural Area (EAA) A-2 Reservoir Project. The scope includes constructing a 17.3-mile reservoir foundation and cutoff wall to support a future embankment dam. Key components of the work involve surface water control, groundwater dewatering, and geotechnical treatments such as demucking, overburden removal, limestone cleaning, and the placement of Controlled Low Strength Material (CLSM) and protective cover. The cutoff wall, critical for seepage control, ranges in depth from 35 to 60 feet, with tip elevations between -25 and -50 feet below ground surface.

The project is currently underway and on track for completion in late 2027. Once finished, it will significantly improve water management across the Everglades system, supporting restoration efforts and ecological resilience from the Central Everglades to Florida Bay. The team has made solid early progress, with strong coordination among partners and successful mobilization across the large project site.