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Disposal Of Dredged Material From The Atlantic Intracoastal Waterway
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2015
[PDF-1.36 MB]
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Description:The Atlantic Intracoastal Waterway (AIWW) is a federally‐maintained navigation channel that extends from Norfolk, VA to Key West, FL, a distance of approximately 1200 miles (Fig. 1). Under the Rivers and Harbors Act of 1938, the U.S. Army Corps of Engineers (USACE) is authorized to keep the channel of the AIWW at a depth of seven to twelve feet at mean low water and to conduct regular maintenance activities on the waterway, including dredging. The USACE Engineering Regulation 1105‐2‐100 directs the USACE to develop Dredged Material Management Plans (DMMPs) for all Federal navigation projects that lack sufficient capacity to accommodate maintenance dredging over the next 20 years (74 FR §13423). The DMMP is a planning document that ensures not only that sufficient disposal facilities are available for at least the next 20 years, but also that maintenance dredging activities are performed in an environmentally acceptable manner, use sound engineering techniques, and are economically justified. The DMMP addresses dredging needs, disposal capabilities, capacities of disposal areas, environmental compliance requirements, potential beneficial uses of dredged material, and indicators of continued economic justification (USACE 2013a). In March 2014, the USACE released a draft Environmental Assessment and DMMP for the Savannah District AIWW, proposing to use a combination of new and existing dredged material disposal sites, open water placement of sandy dredged material, and Ocean Dredged Material Disposal Sites for disposal of AIWW dredged material over the next 20 years. In order to assist the Coastal Resources Division of the Georgia Department of Natural Resources in reviewing this document, this report provides general background on dredged material disposal (Part One) and describes the specific dredged material disposal policies and activities in North Carolina and South Carolina, and the northeastern portion of Florida (Part Two).
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Sea Grant Document Number:GAUS-T-15-001
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Rights Information:Public Domain
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