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
Managing Director / 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 over 25 years of project management experience on a._.
Director / Ecohydrologist
Chris Campbell has more than sixteen 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 specializing in hydraulics, hydrology, geomorphology, water quality, ecology, and ecosystem rehabilitation/restoration.
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’ responsibilities include operations, human resources, health and safety, administration planning, marketing, project management and the business office.
Elizabeth Voss is an experienced accounting & finance professional with a successful history in both the private and public sectors. Elizabeth received a Bachelor’s Degree in Accounting from Minot University. Shortly after._.
April Sawyer MS
April has extensive experience in fluvial geomorphology, hydraulic modeling, and aquatic biology with an emphasis on river restoration.
Ben Taber BS, PE
Ben has a background in Civil Engineering with practical experience in hydraulics, hydrology, hydrodynamics, geomorphology, flood management, water quality, and sediment transport.
Chris Connor BS
Chris joined cbec in 2016 to provide field support to a variety of projects. He has since performed tasks ranging from marketing to modeling. He has experience in coding (python, R, VBA, MATLAB)._.
Doug Shields, Jr. PhD, PE, D.WRE, F.ASCE, F.EWRI
Senior Scientific Advisor
Doug is a civil engineer specializing in hydraulics, geomorphology, water quality and restoration of freshwater aquatic and riparian habitats and is an international leader in river restoration research and practice.
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 late in 2017 with a background in marine ecology and hydrodynamic controls on water quality and sediment transport. He earned a B.S. In Biology and Chemistry (1989) from Bowling._.
Jai Singh BS, EIT
Jai has experience in hydrology, fluvial geomorphology, water quality and ecosystem restoration and specializes in river restoration, geomorpology studies, interdisciplinary watershed assessments, and hydrodynamic modeling.
Jon Parsons MS, EIT
Jon completed his B.S. in biology at the University of California, Santa Cruz before pursuing an M.S. in civil engineering at San Jose State University. His graduate studies focused on topics such._.
Jordan graduated from Williams College in 2017, where he earned a B.A. in Geoscience and first discovered his passion for water and rivers. During his time at Williams, he spent three summers._.
Juma Mohammadi BS, EIT
Juma has over 7 years of experience in highway design and construction, during which he was involved in all phases of the work, from feasibility to project closeout. He earned his Bachelors._.
Matt Weber MS, EIT
Matt has a background in engineering, hydrology, and restoration ecology; experience leading large-scale plant community restorations; and research experience working with rivers.
Nathan’s diverse background includes three years of geotechnical consulting and a stint in Europe where he obtained an M.S. in Sedimentology from the University of Utrecht in the Netherlands. It was in._.
Rafael has experience in fluvial geomorphology, water quality, and hydrogeology and has applied his multidisciplinary background to investigate flood management practices, salmonid habitat conservation, and surface-groundwater interactions.
Sam Diaz PE, CPESC, QSD/QSP
Sam has experience covering a wide range of civil engineering projects and is well versed in designing, creating and preparing construction documents, project permitting, and construction monitoring and surveying.
Toby Stegman MS
Toby brings a wide range of field work experience to cbec, from the use of new photogrammetric methods, RTK GPS and total station surveying, and stream flow gauging, to UAS (drone) and._.