Staff

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

Management Team

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._.

Read more

Chris Campbell MS

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._.

Read more

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._.

Read more

Hamish Moir PhD

UK Managing Director

Hamish is cbec’s UK Managing Director and has extensive training in the fields of fluvial geomorphology-instream ecology interactions and river engineering, both in research and consultancy capacities.

Read more


operations

Alexandria Valle

Administrative Assistant

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._.

Read more

Alexis Wessels BA

Senior Operations Manager

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._.

Read more

Emily McCommas BS

Marketing Coordinator II

Emily joined the cbec team in the capacity of Marketing Coordinator in September 2017. With her arrival, she brought over 8 years of expertise in the graphic design and project management fields.._.

Read more

Lily Garcia BS

Accounting Manager

Lily hails from Washington state, where she earned her Bachelor of Science in Accounting at Central Washington University. Before relocating from Seattle to Sacramento, she accrued over 25 years of progressive accounting._.

Read more


team members

Abe Aufdermauer BS, EIT

Technician II

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._.

Read more

April Sawyer MS

Senior Ecohydrologist I

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._.

Read more

Ben Taber BS, PE

Ecoengineer II

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._.

Read more

Caitlin Barnes BS

Technician II

Caitlin utilizes her background in hydrologic, hydraulic, and geospatial analyses to support cbec’s tidal wetland and salmonid habitat restoration projects. Before joining the cbec team, Caitlin bolstered her environmental skill set as._.

Read more

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._.

Read more

Evan Pesut BS, EIT

Technician II

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._.

Read more

Gavin Downs MS

Ecohydrologist I

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._.

Read more

George Snyder MS

Ecohydrologist I

George is an Ecohydrologist possessing a broad background in geomorphology. He holds an MS in Geology from University of California, Davis, and a BS in Geology from Humboldt State University. George’s scientific._.

Read more

Greg Kamman PG, CHG

Senior Ecohydrologist III

Greg Kamman is a professional geologist and certified hydrogeologist with over 30 years of technical and consulting experience in the fields of geology, hydrology, and hydrogeology. He specializes in directing and managing._.

Read more

Greg Shellenbarger Eng, MS

Ecohydrologist I

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._.

Read more

Haley Tupen MS, EIT

Ecohydrologist I

Haley joined cbec following the completion of her Master’s in Civil Engineering with a focus in Fish Passage and Ecohydraulics at Montana State University. Haley’s graduate research involved assessing hydraulics and hydrology of an ecologically engineered fish bypass._.

Read more

Jackson Ingram BS, EIT

Ecohydrologist I

With a background in civil design, drafting, and field work, Jackson assists on a variety of water resources projects at cbec. He graduated from Humboldt State University with a BS in environmental._.

Read more

Jai Singh BS

Senior Ecohydrologist II

Jai Singh has over ten 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._.

Read more

Jesse Rowles MS

Ecohydrologist I

Jesse’s engineering path is unique compared to most in the water resources field. He originally obtained his BS from Lehigh University, Pennsylvania in Astrophysics, with a minor in Applied Mathematics and Earth._.

Read more

John Stofleth MS, PE

Senior Ecohydrologist II

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-._.

Read more

Jon Parsons MS, EIT

Ecohydrologist I

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,._.

Read more

Kiernan Kelty MS

Ecohydrologist I

As an ecohydrologist, Kiernan performs a combination of technical project analysis and field work for cbec. He supports his findings with analytical output from ArcMap, ArcGIS Pro, AutoCAD Civil 3D, HEC-HMS, MATLAB,._.

Read more

Lily Tomkovic MS, EIT, PhD Candidate

Ecohydrologist I

Ms. Tomkovic’s specialism centers on linking numerical models to ecological field data, investigating the linkages between numerical parameters (such as duration of inundation, age, and hydraulic properties of water) with ecological productivity.._.

Read more

Luke Tillmann MS

Ecohydrologist II

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._.

Read more

Matt Weber MS, PE

Ecohydrologist II

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._.

Read more

Megan Casey BS

Technician II

As an ecohydrology technician at cbec, Megan supports hydrological and hydraulic modeling efforts on a range of restoration projects. At Indiana’s Purdue University, Megan earned her bachelor’s degree in Agricultural Engineering, with._.

Read more

Michael Founds MS

Ecohydrologist II

Michael has ten years of applied experience in multi-benefit ecological restoration, modeling groundwater-surface water interaction, and quantifying impacts of climate and wildfire on flow regimes. At cbec, Michael manages projects that involve._.

Read more

Nick Southall MSc

Senior Ecohydrologist I

Mr. Southall is an experienced project manager with two decades of river restoration experience. He specializes in the assessment and design of stream, river, wetland, floodplain, and estuarine restoration projects. His work._.

Read more

Rafael Rodriguez BS, EIT

Technician II

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._.

Read more

Sam Diaz PE, CPESC

Senior Ecoengineer II

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._.

Read more

Toby Stegman MS

Ecohydrologist II

With over ten years of practice in the water resources field, Toby possesses a strong technical background in hydraulic modeling (HEC-RAS, Tuflow, FaSTMECH 2D), computer programing (Program R, Python, Matlab), and GIS._.

Read more