2024 Best Practices in Dam and Levee Safety Risk Analysis

Jonathan Harris currently acts as the National Practice Leader for Dam Safety and Risk at Schnabel. He has over 27 years of experience specializing in geotechnical engineering, embankment dam design, seismic engineering, dam safety, and risk analysis. He spent 11 years with the Bureau of Reclamation, working at the Technical Service Center as a Technical Project Lead. Jonathan has conducted numerous dam safety assessments for Reclamation, FERC licensees, and other hydropower owners in the United States and other countries. He spent three years working in New Zealand performing dam safety and risk assessments within New Zealand and other countries.

Jonathan has performed as a facilitator and subject matter expert for qualitative and quantitative risk analyses for numerous dam facilities. He has actively been involved in providing training for dam safety and risk analysis for over 15 years and is currently part of the United States Society on Dams risk-informed decision making (RIDM) training development leadership team and helped organize the semi-quantitative risk analysis RIDM training.

Jonathan has overseen numerous embankment dam projects for new and existing structures including site investigation, design, construction, and remediation. He has also been involved with many dam safety assessments for a variety of dam structure types and appurtenant structures, including embankments, spillways, and concrete dams.

Mr. Scott received his B.S. and M.S. degrees in Civil Engineering from the University of Colorado, Boulder. He started his career with the Bureau of Reclamation in 1976, where he worked for 34 years before joining the U.S. Army Corps of Engineers Risk Management Center as Lead Civil Engineer, where he worked through 2018. He has been involved with design, analysis, and construction of dams and dam safety projects, as well as the development and application of potential failure mode analysis and risk analysis for dam safety. He served on several review panels for Bureau of Reclamation and Corps of Engineers dam construction and dam safety projects. He has authored over 35 technical papers in journals and conference proceedings related to dam safety and dam engineering. He is now retired from Federal service, but continues to consult on a limited basis. 

Bill has 42 years’ experience in hydraulic and structural engineering designs for concrete dams and appurtenant structures, with the Bureau of Reclamation. While with Reclamation, he served as a technical specialist and design team leader for numerous water resource projects. In the later part of his career, he served as a member of Reclamation’s three-person Risk Advisory Team, which was responsible for developing additional risk analysis methodologies and providing training for Reclamation.

staff. Bill has particular expertise in concrete dam and spillway modifications, including: project planning and design coordination; analysis and design of structural modifications; review of design drawings and specifications; construction support; and risk analysis methodologies and facilitation. He has written numerous papers focused on dam safety evaluations and dam safety modifications. He was a lead author on a Reclamation manual focused on drains for dams and on a FEMA manual focused on flood overtopping protection for dams. For the past two years, he has worked as a consultant in the role of senior technical advisor.

Mr. Lund has over 40 years of experience in dam safety, design, including hydraulic structure design of spillways, outlet works, and appurtenant structures, comprehensive structural analyses of concrete dams (static and dynamic analyses utilizing both linear and non-linear methodologies), field investigations, and construction.  Early in his career Mr. Lund worked as a design engineer on numerous spillways, water conveyance systems, and outlet works for the Bureau of Reclamation.  He has work in the private sector for over the past over 30 years Mr. Lund and gained experience in the design, analysis, and evaluation of all types of concrete dams. 

Mr. Lund has been working with potential failure modes and risk for over 20 years, and currently serves as the independent consultant and of board of consultant review member for many FERC Projects.  

Phoebe Percell-Taureau has over 20 years of experience in dam and levee safety, security, emergency management. She has led the two largest dam safety programs in the world, both for the US Bureau of Reclamation and the US Army Corps of Engineers. Her focus is not only on getting the engineering right to defend decisions, but also in building the case for those decisions in a manner that is relatable and understandable for non-technical audiences to get behind. This has only been possible through developing the technical expertise in dam engineering, structural design and analysis, risk analysis, risk-informed design. She spent approximately 15 years on her career in the Technical Services Center of the US Bureau of Reclamation working on highly technical challenges mostly related to concrete dams, seeking to understand the complex performance of gravity, arch, and buttress dams under normal operating conditions, floods, and earthquakes and then taking that understanding into a risk environment to evaluate whether or not the performance of the structure met an acceptable level for risk to the public. Sometimes it was not acceptable and Phoebe would then incorporate that same understanding of risk to inform the design for a modification or change to operations. In private sector she used those skills to advise dam owners on the best path forward for their challenges.