Who is on the cbec team?
cbec prides itself on the extensive level of practical and academic experience held by its staff and management.
the core of our success
Chris Bowles PhD, PE
President / Ecoengineer
Chris is a registered civil engineer (CA P.E. C76898) specializing in hydraulics, hydrology, geomorphology, water resources, water quality and environmental restoration. He has more than twenty-five years of project management experience on._.
Director / Ecohydrologist
Chris Campbell has more than nineteen years of engineering and project management experience with an emphasis in ecohydraulics and ecohydrology. He specializes in hydrodynamics, physical hydrology, sediment transport, geomorphology, water resources, and._.
Chris Hammersmark PhD, PE
Director / Ecohydrologist
Chris is a registered civil engineer (CA P.E. C66595) specializing in hydraulics, hydrology, geomorphology, water quality, ecology, and ecosystem rehabilitation/restoration. He has over nineteen years of experience on a diverse array of._.
Aaron joined cbec with over twenty years of project accounting experience. Before coming to cbec, he was the CFO of an IT services company that serviced major federal and state contracts. In._.
Alexandria Valle has been our administrative assistant since 2016. She works directly under the Operations Manager and Business Office Manager. She assists in all aspects of the administrative duties such as supply._.
Alexis is an experienced manager with over 15 years of project management and operations experience. She graduated from the University of California, Santa Barbara with a Bachelor’s degree in Communication. Her previous._.
Abe Aufdermauer BS, EIT
Abe earned his bachelor’s degree in Environmental Resources Engineering at Humboldt State University. At cbec, Abe performs a combination of field work and desk-based analyses to characterize hydrology, hydraulics, geomorphology and sediment._.
April Sawyer MS
April has over ten years of experience in fluvial geomorphology, hydraulic modeling, aquatic biology, and project management with an emphasis on habitat restoration. With a formal education in Montana and professional experience._.
Ben Taber BS, PE
Ben is a registered California PE with over nine years of experience specializing in ecohydraulics and ecohydrology. He acts as both a staff ecoengineer as well as field services manager for projects._.
Doug Shields, Jr. PhD, PE, D.WRE, F.ASCE, F.EWRI
Senior Scientific Advisor
Doug Shields has forty-two years of experience in water resources and environmental engineering, including twelve years for the U.S. Army Corps of Engineers and twenty-two years as a Research Hydraulic Engineer at._.
Evan Pesut BS, EIT
As an ecohydrology technician at cbec, Evan Pesut performs a combination of field work and technical analyses supporting hydrology, hydraulics, geomorphology and sediment transport studies as well as restoration design efforts. Evan._.
Gavin Downs MS
Gavin graduated with a Bachelor’s (2015) and Master’s degree (2017) in Environmental and Natural Resources Engineering from the Department of Agricultural and Biological Engineering from Purdue University. Gavin’s master’s thesis studied the._.
Greg Shellenbarger Eng, MS
Greg joined cbec in 2017 with a background in marine ecology and hydrodynamic controls on water quality and sediment transport. He earned a BS in Biology and Chemistry (1989) from Bowling Green._.
Jai Singh BS
Jai Singh has over nine years of experience in hydrology, fluvial geomorphology, water quality and ecosystem restoration. He specializes in river restoration, geomorphology studies, interdisciplinary watershed assessments, and hydrodynamic modeling. He has._.
John Stofleth MS, PE
John Stofleth has fifteen years of experience in hydraulic engineering, fluvial / estuarine geomorphology and watershed ecology. At cbec, John has worked on several projects that include the development of one-, two-._.
Jon Parsons MS, EIT
Jon completed his BS in biology at the University of California, Santa Cruz before pursuing an MS in civil engineering at San Jose State University. His studies covered topics such as hydrology,._.
Katie is a registered professional engineer with nearly 8 years of civil engineering experience in the water resources industry. Katie’s technical background includes civil design development for projects including sewer, water supply, grading._.
Luke completed his BS in Environmental Sciences, with minors in GIS and Forestry, at the University of California, Berkeley, before continuing to UC Davis for an MS in Hydrology. For his Master’s._.
Matt Weber MS, EIT
Matt joined cbec in 2016 with a diverse background in fluvial geomorphology, restoration ecology and civil engineering. He has extensive experience processing LiDAR data, analyzing spatial data in ArcGIS, QGIS, LAStools, and._.
Michael has eight years of applied experience in rangeland restoration, vadose and groundwater modeling, and surface water modeling of urban systems. He has worked in the Central Coast developing urban stormwater models,._.
Rafael Rodriguez has 9 years of experience in fluvial geomorphology, water quality, and hydrogeology. Rafael graduated from University of California, Davis with a BS in Hydrology where he was first introduced to._.
Sam Diaz PE, CPESC
Sam has nineteen years of experience covering a wide range of civil engineering projects. With cbec he has been involved in several river, stream and wetland restoration and rehabilitation projects that have._.
Toby Stegman MS
Toby has over nine years of experience working in the water resources field. He has a master’s degree from the University of Wyoming focusing on fluvial geomorphology and remote sensing, and an._.
Tyler Keys PhD, EIT
Tyler has a diverse background that combines traditional civil engineering with principles of ecology and ecological engineering. He has experience in hydrology, hydrodynamic modeling, remote sensing, water quality monitoring, and ecosystem restoration.._.