Seepage Through Earth Dams: Instructors

John France, PE, D.GE, D.WRE
JWF Consulting LLC

John France is a registered professional engineer with over 40 years of consulting engineering experience over which time he has worked on hundreds of civil engineering projects. He received BS and MS degrees in civil engineering from Cornell University. For the past 35 years, his professional career has been focused on dam engineering and dam safety services. During his career, Mr. France has been involved in various capacities in evaluating and remediating seepage issues for earth dams. He has written numerous papers on the topic, and in 2012, he was an invited speaker at a FEMA workshop on filters and seepage remediation. He was also engaged by the Montana Dam Safety office to prepare a technical note on chimney filter design for posting on the State’s website. Together with Jennifer Williams, Mr. France has presented workshops on internal erosion failure modes for ASDSO and the States of Colorado and Wyoming.

John Cyganiewicz, PE
Cyganiewicz Geotechnical, LLC

John Cyganiewicz is a registered professional engineer with over 40 years of engineering experience specializing in the dam safety practice. He received his BS degree at the University of Rhode Island and has completed graduate level studies at the University of Rhode Island, University of Colorado, and University of California – Berkeley. Mr. Cyganiewicz retired in 2008 from a 32-year career at the Bureau of Reclamation and has continued to work as a consultant for several dam safety rehabilitation projects. Mr. Cyganiewicz was a leader in developing Reclamation’s risk analysis methodology with a specialization in seepage and piping issues of embankment dams and in the development of a toolbox compiled to provide guidance in seepage and piping risk analyses.  As an invited speaker, Mr. Cyganiewicz has made numerous presentations at technical meetings of various professional societies including ASDSO, USSD, NZCOLD, ANCOLD, and ICOLD. The presentations focused on design and construction of embankment dams, seepage and piping related issues, and risk analysis with a specialty in seepage and piping.

Jennifer Williams, P.E.
Assoc. Vice President

Jennifer Williams is a registered professional engineer for AECOM (Denver) with over 20 years of experience specializing in geotechnical design and analyses of earth dams. Ms. Williams received her BS degree in engineering-civil from Colorado School of Mines and MS degree in civil/geotechnical engineering from University of Colorado. She has provided dam safety engineering services including inspection, analysis, design, and risk assessment to several federal and private dam owners and operators. Ms. Williams leads the semi-annual publication on dam safety – Western Dam Engineering Tech Notes. She has conducted training on using risk-based condition assessments for managing dam inventories for the state dam safety branches of Colorado, New Mexico, and Hawaii. Together with John France, Ms. Williams has presented workshops on internal erosion failure modes for ASDSO and the States of Colorado and Wyoming and was an instructor and co-facilitator for an ADSO technical workshop on the Emergency Response to Seepage Incidents.

Julie Heitland, P.E.
Geotechnical Engineer

Julie Heitland is a registered professional engineer knowledgeable in dam safety, analysis, and design. She has experience with a variety of water supply and hydropower embankment dams and frequently serves as the geotechnical analysis lead on projects. Ms. Heitland received her BS degree in civil engineering from Colorado State University and MS degree in civil/geotechnical engineering from The University of Texas at Austin. Her geotechnical analysis expertise includes material characterization, liquefaction, seepage, static and seismic slope stability, filter compatibility, and internal erosion evaluation of embankment dams. Her engineering design experience includes rehabilitation of existing and new embankment dams. Ms. Heitland also has experience with dam safety inspections and risk assessments. She recently co-authored a paper on “Seepage Models – Tips, Tools & Guidance (From an Engineer’s Perspective)” for the ASDSO 2020 Dam Safety National Conference.

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