COASTAL ENGINEERING WITH NATURE AT THE INTERFACE BEWTEEN BEST AVAILABLE SCIENCE, ENGINEERING, MANAGEMENT, AND COMMUNITY NEED

On the U.S. Pacific Northwest (PNW) outer coast, there are both naturally occurring dune backed beaches and cliff backed cobble beaches that have inspired nature- based engineering strategies for erosion control (i.e., sandy and vegetated dunes and dynamic revetments). Coastal communities want to mitigate and/or manage sand movement now, so policy and regulatory-based agencies are seeking the best available knowledge regarding the ecosystem services and dynamics associated with coastal foredune and cobble berms. Management needs and gaps in scientific knowledge and engineering practice often go hand in hand. Therefore we are working to develop guidance documents that combine management needs with the best available engineering and scientific knowledge to identify, synthesize, and address community-driven priorities for coastal dunes and dynamic cobble revetments in the PNW.