FIRST STREET TUNNEL, WASHINGTON DC Treviiicos

FIRST STREET TUNNEL, WASHINGTON DC

Work will consist of installation of a 42,000 square feet slurry wall and 30,000 cement bentonite cutoff wall.

Slurry wall and Cement Bentonite Cut Off will provide SOE (support of excavation) and water cutoff for the construction of a 165’ deep TBM launch.