Assessing the Effects of Storm Surge Barriers on the Hudson River Estuary - NERRS/NSC(NERRS Science Collaborative)

Coastal cities around the country are exploring structural engineering options for defending against extreme storms and the resulting surge of ocean water that can massive flooding. Storm surge barriers or tide gates can effectively protect harbors and minimize flooding, property damage and loss of life during large storms. These barriers typically span the opening to a harbor or river mouth and include gates that are only closed when storm surges are expected. However, even when gates are open, the barriers reduce water flow and tidal exchange, which in turn affects water quality and ecological processes. Scientists and engineers are increasingly recognizing the need for broad research initiatives to more fully explore the advantages and disadvantages of large surge barriers.