Hydraulics & Waterways

Oral

400287 - Reservoir Sediment Management: Examples from the United States

Wednesday, June 6
2:00 PM - 3:30 PM
Location: Greenway CD

As dams in the United States continue to function beyond their so-called design lives, reservoir sedimentation is becoming more acute. Sustainability requires that project benefits be extended to future generations, so sediment management at reservoirs is essential. We share six case studies of how sediment is being managed at facilities in the United States. Pressure flushes are conducted at Cherry Creek Dam in Colorado and Kannapolis Lake in Kansas to protect outlet works from encroaching sediment deposition. John Redmond reservoir in Kansas and Lake Decatur in Illinois provide examples of general dredging to regain lost storage in the reservoir. Spencer Dam in Nebraska and Millsite Dam in Utah use operations that pass deposited sediments downstream from the dam to maintain storage capacity and to protect the integrity of the dam. Future needs include a streamlined permitting process that will encourage more sediment management at U.S. dams in the future.

Rollin Hotchkiss


Brigham Young University

Dr. Rollin H. Hotchkiss is a professor and the Chairman of the Civil and Environmental Engineering at Brigham Young University (BYU). Prior to his work at BYU, Dr. Hotchkiss worked at Washington State University the University of Nebraska-Lincoln. His major research areas include mitigating reservoir sedimentation and the interdisciplinary issue of providing passage for fish through culverts and at dams. Dr. Hotchkiss is a licensed professional civil engineer and a Diplomate of the American Academy of Water Resources Engineers, one of only a few advanced certification programs. He recently served as the president of the American Society of Civil Engineers’ Environmental and Water Resources Institute (EWRI). He is currently the Chairman of the Environmental Advisory Board to the Chief of the U.S. Army Corps of Engineers. Dr. Hotchkiss has advised more than 70 graduate students and has authored or co-authored more than 100 conference papers and project reports and 40 refereed journal papers. Dr. Hotchkiss teaches courses in fluid mechanics, stream restoration, the design of hydraulic structures, and leadership. He collaborated for six years with the University of Zacatecas and the University of Guanajuato in Mexico on an annual study abroad experience for engineering students who worked as teams to propose solutions to local flooding problems in the region. He also teaches short courses to practicing engineers on the topics of hydraulic modeling with HEC-RAS, the design of culverts for peak flows and for fish passage, and storm sewer design.

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Paul M. Boyd, Ph.D., P.E.

Hydraulic Engineer
U.S. Army Corps of Engineers, Omaha District

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John Shelley, Ph.D. P.E.

Hydraulic Engineer
U.S. Army Corps of Engineers, Kansas City District

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