An Analysis of Replenished Beach Design Parameters on U.S. East Coast Barrier Islands

摘要: Forty-three beach replenishment projects on the United States Atlantic Coast are divided into 3 categories based time of fill retention: (1) less-than-1-year beaches (26%), (2) l-to-5 year (62%), and (3) greater-than-five-year (12%). Filled or replenished north Florida generalIy have lifetimes fewer than 5 years. Storm history is most important factor In determining durability so that effects other parameters, which may also play a role in artificial behavior, overshadowed. Beach length, grain size, shoreface slope, shelf width method emplacement show no correlation to regional lifetime. Inlet proximity combination shoreline orientation dominant angle wave approach exert minor influence behavior. Initial density (volume per unit length) exerts significant percentage remaining after one year, but effect becomes less well defined beyond first year.