"Dredging is the removal of sediments and debris from the bottom of lakes, rivers, harbors, and other water bodies. It is a routine necessity in waterways around the world because sedimentation—the natural process of sand and silt washing downstream—gradually fills channels and harbours" (NOAA, 2020)


National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce. 2020. https://oceanservice.noaa.gov/facts/dredging.html