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			KEY PROJECT Beach Renourishment Bonita Beach, Lee County, Florida   Services Rendered Evaluation of coastal dynamics and changes following initial nourishment in 1995 Evaluation of existing coastal structures Design of beach fill layout and cross-sections Identification of beach-compatible offshore sand sources Numerical modeling of wave dynamics and sediment transport potential Coordination of state and federal permitting Construction managements Project Summary ATM was contracted by Lee County to conduct the studies necessary for designing and permitting the first renourishment of Bonita Beach since its initial nourishment in 1995. Beach profile data was analyzed to assess the shoreline dynamics within and adjacent to the project area in order to develop a project design that provides long-term benefits to the Bonita Beach shorefront. Before After   Located on Little Hickory Island along the southwest coast of Florida, Bonita Beach is fronted with high-rise condominiums and is heavily visited throughout the year by tourists and residents alike. Two public accesses located along the 3,900 feet of project area shoreline also contribute to the large volume of recreational traffic at Bonita Beach. To identify an appropriate offshore sand source, ATM engineers worked with Scientific Environmental Applications, Inc. to conduct an extensive analysis of existing GEODAS data to determine the areas most suitable for seismic profiling. Following interpretation of the seismic data, 20 vibracores were acquired from two candidate areas, and a borrow site containing approximately 229,000 CY of compatible beach-quality material was identified along the Big Carlos ebb shoal. In conjunction with the 122,000 CY of sand estimated for placement along the project shoreline, ATM designed a vegetated dune feature for improved storm protection of upland habitat, which also allows for improved sea turtle nesting success. ATM also incorporated an experimental berm section with a gentler slope to address concerns of the Florida Fish and Wildlife Conservation Commission about the formation of post-construction escarpments, and prepared a post-construction report as part of the project performance monitoring program.   Bonita Beach information sheet     Bonita Beach website