Bert Clemmens
Ph.D., P.E., D.WRE
Senior Engineer,
Tempe, AZ

Dr. Clemmens is the National Director for Irrigation and Drainage with WEST Consultants, Inc. Dr. Clemmens has more than 39 years of experience in water resources.  He retired from the Agricultural Research Service, U.S. Department of Agriculture (USDA) in 2011, where he developed technology for improving water management, including low-head flow measurement methods, canal operations, canal automation, hydrologic water balances, and irrigation project performance metrics.

With USDA, he served as Center Director for the U.S. Arid Land Agricultural Research Center, Maricopa, AZ and Laboratory Director for the U.S. Water Conservation Laboratory, Phoenix, AZ. He oversaw research on irrigation management, remote sensing, wastewater reuse, crop response to global climate change, breeding of cotton and new industrial crops, plant physiology, and integrated pest management.

Dr. Clemmens is an international expert in open channel flow measurement and associated measurement accuracy. He has written several books on the subject. He developed software for calibration of measuring flumes and weirs, WinFlume, which is used worldwide. He is currently working on software for calibration of submerged radial and sluice gates, WinGate. This software is distributed by the Bureau of Reclamation.

Dr. Clemmens is an international expert in the field of canal automation. He led several American Society of Civil Engineers (ASCE) task committees with many international participants, including: evaluation of one-dimensional unsteady flow software, the state-of-the art of canal automation research, and the use of canal automation for modernization. He developed SacMan (Software for Automated Canal Management), a program that interfaces with SCADA software to implement canal automation. This technology requires extensive knowledge of unsteady open-channel flow, control engineering, and canal operating methods. This led to the development of the SCADA Training Tool currently marketed by WEST Consultants.

Since joining WEST Consultants, Dr. Clemmens has performed a site specific PMP study for the Saddleback Flood Retarding Structure in western Maricopa County and performed hydrologic and hydraulic modeling in support of possible certification of the levees along the East Maricopa Floodway.  In addition, Dr. Clemmens was the chair of the Engineering Board that evaluated water conservation potential for the San Carlos Irrigation and Drainage District.  Dr. Clemmens has also designed flumes for the Fort Sumner Irrigation District, developed alternatives for improving flow measurements on the Rio Grande below Elephant Butte Dam, and participated in the U.S. Army Corps of Engineer's 7th Technical Committee for the review of Lake Michigan diversion flow measurements and accounting procedures.  Currently, he is supervising the installation of a SCADA system in the Carlsbad Irrigation District.