Shewbridge, S. E., authorColorado State University. Department of Engineering, publisher2017-02-162017-02-162016-0997818891432791889143278http://hdl.handle.net/10217/179794http://dx.doi.org/10.25675/10217/179794Presented at the Protections 2016: 2nd international seminar on dam protection against overtopping: concrete dams, embankment dams, levees, tailings dams held on 7th-9th September, 2016, at Colorado State University in Fort Collins, Colorado, USA. The increasing demand for dam and levee safety and flood protection has motivated new research and advancements and a greater need for cost-effective measures in overtopping protection as a solution for overtopping concerns at levees and dams. This seminar will bring together leading experts from practice, research, development, and implementation for two days of knowledge exchange followed by a technical tour of the Colorado State University Hydraulic Laboratory with overtopping flume and wave simulator. This seminar will focus on: Critical issues related to levees and dams; New developments and advanced tools; Overtopping protection systems; System design and performance; Applications and innovative solutions; Case histories of overtopping events; Physical modeling techniques and recent studies; and Numerical modeling methods.Includes bibliographical references.The U.S. Army Corps of Engineers is updating EM 1110-2-1913, Design, Construction and Evaluation of Levees, including new guidance on how to conduct erosion analysis. This paper presents the two erosion models considered: erosion rate as a function of shear stress and an empirical relationship relating wave overtopping flow rate to erosion rate. The paper also suggests the current state-of-the-practice regarding factors to be considered when selecting erosion model parameters. Erosion design will be conducted in a risk-informed framework, using potential failure modes analysis and when possible, probabilistic limit state analyses to assess design reliability. Required design reliability will be selected based on levels necessary to achieve various life-safety, economic and other unspecified objectives, as appropriate for each flood risk mitigation system.born digitalproceedings (reports)engArmy Corps of Engineerserosion rate modelwave overtopping erosion modelcritical shear stresserosion coefficientrisk-informed designTextThis presentation is open access and distributed under the terms and conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0).