Dr. David Bowles is Managing Principal of RAC Engineers and Economists, LLC and Professor Emeritus of Civil and Environmental Engineering at Utah State University (USU). He is internationally recognized as a pioneer and leader in dam safety risk assessment and management. He has completed or reviewed risk assessments for more than 800 dams on five continents, including for Reclamation, USACE, TVA and FERC-regulated dams. He has led software development for dam safety risk analysis (DAMRAE), life-loss estimation (LIFESim/HEC-FIA), portfolio risk management (ResRisk) and forecast-based reservoir operation.David has performed extensive work for mining industry including: permit preparation; diversion, storage and treatment of surface water; hydrologic impact analysis of surface and subsurface mining; reclamation plans for a major strip mine; spatial characterization of strength parameters and probabilistic slope stability analyses for tailings storage facilities (TSF); and the design of dewatering, depressurization and injection well systems. He has completed risk assessments on TSFs, ash disposal stacks and ponds, and review of a risk assessment approach for TSFs for The World Bank.For more than twenty years David has advised dam owners and regulators on development of risk-informed management, including USACE Headquarters and the US nuclear industry. He has served as a Member or Chair of many Expert Review Panels for: regulatory and owner’s dam safety programs, including Reclamation; dam safety remedial options and designs; individual and portfolio dam safety risk assessments; dam safety or security risk assessment methodologies, including for The World Bank, IAEA, UN and European Commission; centralized control of the California State Water Project; Mid-Term River Operations of the Lower Colorado River; and risk and reliability and life-loss estimation aspects of the post-Katrina IPET evaluation of the Hurricane Storm Damage Risk Reduction System (HSDRRS) for USACE Headquarters. He has also served as an expert witness for major lawsuits in the US, Canada and Ireland.David has conducted flood frequency analyses and PMF determinations and led an international effort that proposed a now widely-accepted framework for probabilistic extreme flood estimation. He has completed dam-break analyses for many dams and has published on breach parameter estimation and physically-based 3-D breach modeling. He has completed reliability analyses for many spillway gate systems and for storm surge closure structures for New Orleans. David’s 46 years’ professional experience includes design, construction and consulting engineering in the UK and the US. While with Law Engineering he was Branch Manager of Denver Operations. At USU he was Director of the second largest of Water Resources Research Center in the US and the Institute for Dam Safety Risk Management. David is active in many professional organizations, including Chair, US Society on Dams (USSD) Dam Safety Risk Subcommittee, is a former Director of USSD, and author or reviewer of guidelines, including ICOLD Bulletin 130 on Risk Assessment.
Home Page with links to download papers: http://www.racengecon.com/davidbowles.html and https://www.researchgate.net/profile/David_Bowles3