Dredge Design

Large scale engineering of natural processes, both mechanical and biological

THE DIRT

1_30000 Dredge Anth + 2008 islands Jamaica Bay / Drudge Design Collaborative

To dredge simply means to scoop up sediment, often underwater, and move it to another location. While this process is often associated with moving contaminated soils to a place where they can be safely capped, today, dredging is also increasingly about harnessing natural processes to create new landforms and ecological systems. New “dredge landscapes,” man-made systems, offer opportunities for ecological restoration, said Brett Milligan, ASLA, Dredge Research Collaborative, at the ASLA 2014 Annual Meeting in Denver.

Sediment is dynamic and dramatically differs from place to place. Studying the natural flow of sediment in rivers and deltas, we can begin to understand how the movement of sediment can be “choreographed” to achieve ecological goals. However, given sediment flow happens within complex ecosystems impacted by human activities, like the deepening of channels for large ships, using dredge to create new landscapes is a highly…

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