Coney Island Yard Complex Long Term Flood Mitigation, Brooklyn, 2019-2022


Project Overview

The project required Design and construction of a water cut-off wall ranging up to 60 feet in depth using jet-grouting technology in complex geology that contained organic soil, peat layers, the presence of bio-fluids and natural obstructions.


Sovereign developed a plan using a combination of 3-foot and 5-foot diameter jet grouting columns to create the cut-off wall filling in between existing piles and adjacent to critical transit structures.


Work was completed between 2019 and 2022. Sovereign successfully created 3,800 linear feet of water cut-off wall.

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