United States Society on Dams Modeling Sediment Movement in Reservoirs June 2015 United States Society on Dams Modeling Sediment Movement in Reservoirs Volume III June 2015 Prepared by the USSD Committee on Hydraulics of Dams, Subcommittee on Reservoir Sedimentation U.S. Society on Dams Vision A world class organization dedicated to advancing the role of dam and levee systems and building the community of practice. Mission USSD, as the United States member of the International Commission on Large Dams, is dedicated to: ADVOCATE: Champion the role of dam and levee systems in society. EDUCATE: Be the premier source for technical information about dam and levee systems. COLLABORATE: Build networks and relationships to strengthen the community of practice. CULTIVATE: Nurture the growth of the community of practice. The information contained in this report regarding commercial products or firms may not be used for advertising or promotional purposes and may not be construed as an endorsement of any product or firm by the United States Society on Dams. USSD accepts no responsibility for the statements made or the opinions expressed in this publication. Copyright © 2015 U. S. Society on Dams Printed in the United States of America ISBN 978-1-884575-70-9 U.S. Society on Dams 1616 Seventeenth Street, #483 Denver, CO 80202 Telephone: 303-628-5430 Fax: 303-628-5431 E-mail:
[email protected] Internet: www.ussdams.org FOREWORD Because dams alter the natural balance of water and sediment, all reservoirs will experience, to a greater or lesser extent, sedimentation. The conventional concept of managing reservoir sedimentation by allocating "dead storage" for a predetermined useful reservoir life of 50 to 100 years is no longer considered state of the art.