Chapter
Apr 26, 2012
Implementing Regional Sediment Management to Sustain Navigation at an Energetic Tidal Inlet
Authors: Hans R. Moritz [email protected], Guy R. Gelfenbaum [email protected], George M. Kaminsky WA, [email protected], Peter Ruggiero [email protected], Joan Oltman-Shay WA, [email protected], and Doris J. Mckillip [email protected]Author Affiliations
Publication: Coastal Sediments '07
Abstract
Regional Sediment Management (RSM) is a systems-based approach for managing multiple projects involving sediment. RSM fosters balance between infrastructure and natural system processes, resulting in reduced project costs and achievement of greater benefits. This paper introduces the RSM concept and describes how RSM is being implemented at the Mouth of the Columbia River to sustain the inlet's 100-year old navigation infrastructure and adjacent shore lands. Implementing RSM at this energetic inlet involves feeding the inlet's morphology using dredged material, and letting nature do the work of dispersing the placed dredged material to supplement the inlet's sediment budget, without compromising the reliability of the navigation channel. The paper discusses the types of data that are being collected and analyzed to understand the environmental forcing affecting the inlet's morphology. The paper also addresses how dredged material disposal is being conducted to implement RSM.
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© 2007 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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U.S. Army Corps of Engineers, Portland District, POB 2946, Portland, Oregon, 97208. E-mail: [email protected]
U.S. Geological Survey, Coastal and Marine Geology Program, Menlo Park, CA. E-mail: [email protected]
Washington Department of Ecology, Coastal Monitoring & Analysis Program, Olympia. E-mail: WA, [email protected]
Oregon State University, Dept of Geosciences. E-mail: [email protected]
Northwest Research Associates, Bellevue. E-mail: WA, [email protected]
U.S. Army Corps of Engineers, Portland District, POB 2946, Portland, Oregon, 97208. E-mail: [email protected]
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