Francisco Ortega S. is the Principal and Director of FOSCE Consulting Engineers of Hamburg, Germany. He is a graduate from the Polytechnic University in Madrid, Spain and is a registered professional engineer in the Consulting Engineers Chamber of Schleswig-Holstein in Germany. He is a member of the ICOLD Technical Committee on Concrete Dams. He worked as a contractor with Dragados, Spain for 12 years and since 1999 has been a Consulting Engineer. He has been involved in the planning, design and construction of more than 50 large RCC dams in 20 different countries. He has presented papers at several RCC conferences in Spain, Bolivia, Portugal, Iran, Germany, U.S., Costa Rica, India, Myanmar, China and Thailand. FOSCE is involved at present in the design and construction of the following large Dams Yeywa (135m) and Upper Paunglaung(99m) in Myanmar, Pirris (115m) in Costa Rica, Gavilan ChanI (97m) and Gavilan ChanII (180m) in Panama, Nam Ngum 3 (220m) in Laos.

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Francisco Rodrigues Andriolo received a Bachelor of Science Degree in Civil Engineering from Sao Carlos Engineering School in 1969 and is currently a Director of Andriolo Engenharia. He also acts as a consulting engineer on materials, concrete technology and concrete construction planning & techniques, quality control, instrumentation and concrete structure inspection. Francisco also provides technical support for contractors, planning and management companies, government agencies and research institutes. During his career he has written seven technical books and 141 papers on the design and construction methods for Roller Compacted Concrete. He has worked on over 90 projects in 22 countries accumulating a total of over 51,000,000m3 of concrete placed. Francisco worked as support for the contractor in construction planning and methodology, concrete and materials technology on the Miel – I dam in Columbia which to date is still the highest RCC complete dam in the world.

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Jack Linard graduated from the University of Melbourne in Civil Engineering in 1964. He was based in Australia until the mid 70s and then re-located to Canada. Up to 1995, he was head of the Dams and Powerhouses branch of SNC-Lavalin, Canada’s largest consulting group. Since then, he has been providing professional services to consulting companies, contractors and developers of hydroelectric projects in every continent except Antarctica. Jack is first and foremost, a designer. He moved on from powerhouses back in the early 70s when he was with SMEC and has concentrated on gravity dams and associated works (foundations, diversion, spillways, intakes, power conduits) and, of course, the dams themselves. Jack is one of the few engineers with experience in both the high and low paste approaches to RCC dam design. Despite being a designer, he has got his hands dirty in many laboratories and spent the night shift on the dam surface at -10°C. He has recently completed the low paste 60 m high Taishir dam in Mongolia and continues to be involved in the design of the high paste 140 m high Son La dam in Vietnam, which is currently under construction.

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John Green received a diploma of civil Engineering complete with additional studies in concrete from RMIT Melbourne, he has also obtained a degree in Economics. John specialises in estimating for major projects in particular RCC dams, he is currently working as a free-lance civil engineer and is based in Manila, Philippines.  John was closely involved in several of the earlier RCC dams that were tendered in Australia, in particular the first publicly tendered RCC Dam – Craigbourne in Tasmania, as well as the New Victoria Dam in Perth. To date John has been involved in estimating for 17 RCC Dams.

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Ken Hansen is a Principal and Senior Vice President for Schnabel Engineering located in the Denver area. He received his B.S from the University of New Mexico, where he was honored as a Distinguished Engineering Alumnus in 2001, and his M.S in Civil Engineering from the University of Colorado. Prior to joining Schnabel ten years ago, he spent more than 36 years with the Portland Cement Association. Ken has consulted on more than 55 RCC dam projects, in eleven countries and has given more than 400 presentations on RCC design, constructing and quality control. He is coauthor of the book “Roller Compacted Concrete Dams”, and was editor or co-editor of all three proceedings on Roller Compacted Concrete published by ASCE. Ken served as a consultant to the Federal Regulatory Commission (FERC) on the Saluda Dam remediation in South Carolina and was part of the design team for Hickory Log Creek Dam.

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Trevor Dunstan is Executive Director of ARAN International Pty. Ltd located in Brisbane, Australia. Educated as a mechanical engineer at the University of Queensland, Trevor developed the first fully self contained, self erecting, mobile continuous mixing plant for RCC and other materials with workable silo and hopper capabilities all in one trailer unit in 1978. His ARAN system was first used on Copperfield Dam in Australia in 1984. Since then, his continuous mix, volumetric proportioning plants have been used directly on more than 30 RCC projects with volumes of up to 1 million cubic meters in many countries. This does not count the numerous RCC projects that use ARAN plants by their current owners. Trevor also invented the fully enclosed cleated belt feeder for metering fine materials such as cement, which set new standards for accuracy and repeatability of the feed.

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