Abstract
Abstract : Two nearshore berm nourishments were placed at Fort Myers Beach and Perdido Key Florida, USA, as part of Regional Sediment Management practices. At Fort Myers Beach, a bar-like berm was placed offshore, while at Perdido Key a swash-zone berm was placed approximately half-way between the mean water line and berm crest to maximize the potential for mobilization. Themorphologic and sedimentologic evolution of both study areas was documented based on beach profile surveys and sediment sampling. Both projects were successful in that they added sediment to the littoral system and dry beach, protected the natural beach from storm impacts, and equilibrated with the natural system making the placement site sustainable for future projects. The nearshore berm at Fort Myers Beach contained mixed sediment and fine material initially located in the trough landward of the berm migrated offshore, while coarser beach quality sediment moved onshore. Sediment at Perdido Key was beach-quality sand slightly finer than the native sand on the subaerial beach, and was successfully integrated over the two-year monitoring period.
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