Dredged Material Disposal Modeling - Chesapeake Bay

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by Edward T. Fulford, US Army Corps of Engineers, Planning, Div, Baltimore, MD, USA,

Document Type: Proceeding Paper

Part of: Dredging and Dredged Material Disposal

Abstract: A plan to deepen the approach channels to Baltimore Harbor from 42 feet to 50 feet involves in part the overboard disposal of about 9. 5 million cubic yards of dredged material in the Wolf Trap disposal site in the Virginia Chesapeake Bay. To qualitatively analyze the short term fate of the dredged material after disposal, the instantaneous dump numerical model developed by Tetra Tech, Inc. under contract to the U. S. Army Corps of Engineers was applied. Simulations of disposal events in various locations in the designated disposal area were accomplished to determine the maximum lateral movement and corresponding bottom thickness of the disposed material. The results of this approach combined with limited field data on post-disposal dredged material movement were used to define the limits of the disposal operations in a given area to maximize the retention of the material in the disposal area.

Subject Headings: Dredged materials | Bays | Waste sites | Numerical models | Data processing | Field tests | Quantitative analysis | Ports and harbors | Chesapeake Bay region | North America | United States | Virginia | Maryland | Baltimore

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