{"id":7787,"date":"2020-10-31T11:13:00","date_gmt":"2020-10-31T16:13:00","guid":{"rendered":"https:\/\/ewn.erdc.dren.mil\/?p=7787"},"modified":"2023-02-25T16:18:57","modified_gmt":"2023-02-25T22:18:57","slug":"2014-egmont-key-beneficial-use-of-high-fines-material-using-traditional-versus-cross-shore-swash-zone-placement","status":"publish","type":"publications","link":"https:\/\/ewn.erdc.dren.mil\/publications\/archive\/2014-egmont-key-beneficial-use-of-high-fines-material-using-traditional-versus-cross-shore-swash-zone-placement\/","title":{"rendered":"2014 Egmont Key Beneficial Use of High Fines Material Using Traditional Versus Cross Shore Swash Zone Placement"},"content":{"rendered":"\n<p><strong>WEDA Journal of Dredging<\/strong><\/p>\n\n\n\n<p class=\"float-left\">The periodic maintenance dredging of the Tampa Harbor Entrance Channel commenced during the fall of 2014 through the winter season with beach placement on Egmont Key National Wildlife Refuge and State Park. Due to severe erosion on Egmont Key, the State of Florida Department of Environmental Protection (FDEP) made an exception to Florida Administrative Code (FAC) 62B41.007 (2)(j)(k) otherwise known as the \u201cSand Rule\u201d criteria for beach placement of a maximum allowance of an average of 10% fines (defined as sediment passing the 0.063 mm sieve) for maintenance dredging material. Geotechnical borings collected from the shoaled materials in the channel indicate an average composite \u201cfines\u201d content of 20.7% within the dredge prism. The constructed project involved beach placement of the dredged material using the traditional trapezoidal placement method and a unique placement method referred to as \u201ccross shore swash zone (CSSZ) placement\u201d. The CSSZ placement is constructed by discharging material directly into the swash zone of the beach until a salient forms and then extending the discharge line perpendicular offshore until a \u201cpoint\u201d feature is created in the shoreline. Once placed, the CSSZ geomorphic point feature is highly erosive and functions as a feeder beach composed of sediments that are well sorted, or \u201cwashed\u201d of their finer fraction of sediments. The traditional and CSSZ placement operations occurred approximately 0.8 km (0.5 mi) apart on Egmont Key and allowed for a comparison of the two placement methodologies in terms of: geomorphologic evolution, compaction, volumetric loss or bulking, anecdotal turtle nesting density, initial coarsening of the placement material (fines loss), initial and chronic turbidity and potential best management practices (BMP) to minimize beach footprint impacts as well as reduce construction cost.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>WEDA Journal of Dredging The periodic maintenance dredging of the Tampa Harbor Entrance Channel commenced during the fall of 2014 through the winter season with beach placement on Egmont Key National Wildlife Refuge and State Park. Due to severe erosion on Egmont Key, the State of Florida Department of Environmental Protection (FDEP) made an exception [&hellip;]<\/p>\n","protected":false},"featured_media":6177,"template":"","tags":[],"class_list":["post-7787","publications","type-publications","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2014 Egmont Key Beneficial Use of High Fines Material Using Traditional Versus Cross Shore Swash Zone Placement - Engineering With Nature<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ewn.erdc.dren.mil\/publications\/archive\/2014-egmont-key-beneficial-use-of-high-fines-material-using-traditional-versus-cross-shore-swash-zone-placement\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2014 Egmont Key Beneficial Use of High Fines Material Using Traditional Versus Cross Shore Swash Zone Placement - Engineering With Nature\" \/>\n<meta property=\"og:description\" content=\"WEDA Journal of Dredging The periodic maintenance dredging of the Tampa Harbor Entrance Channel commenced during the fall of 2014 through the winter season with beach placement on Egmont Key National Wildlife Refuge and State Park. Due to severe erosion on Egmont Key, the State of Florida Department of Environmental Protection (FDEP) made an exception [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ewn.erdc.dren.mil\/publications\/archive\/2014-egmont-key-beneficial-use-of-high-fines-material-using-traditional-versus-cross-shore-swash-zone-placement\/\" \/>\n<meta property=\"og:site_name\" content=\"Engineering With Nature\" \/>\n<meta property=\"article:modified_time\" content=\"2023-02-25T22:18:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ewn.erdc.dren.mil\/wp-content\/uploads\/2021\/11\/WEDA_Vol18no1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"694\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ewn.erdc.dren.mil\\\/publications\\\/archive\\\/2014-egmont-key-beneficial-use-of-high-fines-material-using-traditional-versus-cross-shore-swash-zone-placement\\\/\",\"url\":\"https:\\\/\\\/ewn.erdc.dren.mil\\\/publications\\\/archive\\\/2014-egmont-key-beneficial-use-of-high-fines-material-using-traditional-versus-cross-shore-swash-zone-placement\\\/\",\"name\":\"2014 Egmont Key Beneficial Use of High Fines Material Using Traditional Versus Cross Shore Swash Zone Placement - 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