A combination of equipment and techniques for the installation of the secant piles

The installation of the cutoff wall by the Treviicos-Nicholson joint venture at Boone Dam, started in 2019 and was completed in February 2021, allowing TVA to restore normal operations of the reservoir to pre-2014 levels, 17 months ahead of schedule. 

The Boone Dam Project was a further achievement in the decades-long experience established by the TREVI Group in the field of Dams and Levees rehabilitation where, in the US alone, TREVIICOS has successfully completed tens of projects using several technologies including secant piles, cutoff walls, soil mixing, jet grouting, and others.