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Mound Migration in Deeper Water and Methods of Categorizing Active and Stable Depths

by Edward B. Hands, USAE Waterways Experiment Station, Vicksburg, United States,
Mary C. Allison, USAE Waterways Experiment Station, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Coastal Sediments

Abstract:

Sustained shoreward migration of several dredged material disposal mounds, including one in 6-m depths off the Alabama coast, should encourage greater use of nearshore placement to conserve inlet-dredged sands. Apparent inconsistencies in the fate of mounds at different sites are resolved by ranking the long-term, near-bed velocity distributions. Methods are proposed to help select depths appropriate for either dispersion or retention of placed materials. These methods can be readily applied along any section of the open-ocean coast of the United States using published wave climatology.

Subject Headings: Water waves | Velocity distribution | Sediment transport | Sea water | Wave climates | Water conservation | Sand (hydraulic) | United States | Alabama

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