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Title
Movement of Sediment Accumulations
Alternative Title
Managing Watersheds for Human and Natural Impacts: Engineering, Ecological, and Economic Challenges, EWRI and ASCE 2005 Watershed Management Conference, Williamsburg, Virginia, July 19-22, 2005
Creator
Blair Greimann
Bureau of Reclamation, Technical Services Center, Sedimentation and River Hydraulics Group, Denver, CO.
Date Created and/or Issued
2005
Contributing Institution
UC Riverside, Library, Water Resources Collections and Archives
Collection
Clearinghouse for Dam Removal Information (CDRI)
Rights Information
Copyrighted
Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user.
Description
Scope/Content: Abstract: When large dams are removed, one of the biggest concerns is the associated impacts from the erosion and transport of reservoir sediment in the downstream river channel. Predicting the sediment impacts is critical to ensure that the dam is removed in a safe, controlled manner and the downstream mitigation or protective measures can be appropriately designed. However, because of the limited data and inadequate models, the quantification of sediment impacts is subject to great uncertainty. This paper presents an overview of current methods used to predict the volume and rate of erosion of sediment in the reservoir region and the resulting downstream impacts. A simple model of downstream aggradation is proposed that may simplify analyses of deposition of coarse material downstream. The potential application and limitations of each method are described.
Type
text
Form/Genre
digital copy
Identifier
ark:/86086/n2t43sr9
120
Subject
Sediment and channel dynamics
Dams
Dam retirement
Place
US

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