Our Instructors

Janine M. Castro, Ph.D., R.G.

  • Geomorphologist, U.S. Fish and Wildlife Service and National Marine Fisheries Service
  • Technical Director, PSU River Restoration Certificate Program

Janine Castro is a national expert in geomorphology with the US Fish and Wildlife Service and National Marine Fisheries Service in Portland, Oregon. Her primary duties include developing streamlining tools to improve stream restoration implementation and effectiveness, providing technical assistance on stream restoration projects, evaluating state and federal permit applications for instream work, including dam removal and channel reconstruction, and coordinating between state and federal agencies on controversial issues related to fluvial geomorphology. She is an experienced instructor who provides local, national, and international training on geomorphology, stream restoration, and public speaking for scientists.

Dr. Castro helped develop the EPP River Restoration Program, is one of the five founding members of River Restoration Northwest, and is adjunct faculty in the Environmental Sciences and Management Department at Portland State University. For more information, visit Janine’s Google Scholar Page.


Colin R. Thorne, Ph.D.

  • Professor and Chair of Physical Geography, University of Nottingham, UK
  • River Consultant, ESA Vigili-Agrimis, Portland, OR
  • Technical Director, PSU Advanced River Restoration Certificate Program

He has been an academic for more than four decades, including appointments at Colorado State University, US Army Corps of Engineers Waterways Experiment Station, and Agricultural Research Service National Sedimentation Laboratory. His research concentrates on fluvial hydraulics and sediment transport in natural, modified and managed rivers, particularly with respect to the implications for erosion, sedimentation and flood risk. Thorne performs original research and consultancy nationally and internationally, including work on large rivers and their coastal deltas. Currently, he is leading a research consortium on Blue-Green Cities and is engaged a collaborative research with Portland State University and Reed College on green infrastructure in Portland, OR. For more information, visit Colin’s Google Scholar Page.

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Morgan Clay

  • Walla Walla Basin Assistant Habitat Project Leader, Confederated Tribes of the Umatilla Indian Reservation (CTUIR)

Morgan earned a B.S. of Environmental Science from University of Portland. After working in fisheries for several years, she returned to University of Portland for a Masters in Civil Engineering. She worked as a water resources engineering designer at a local design firm before moving to Walla Walla. Morgan uses her background in fisheries science and water resources engineering to support the development and implementation restoration projects throughout the Walla Walla River basin. Her projects focus on the touchstones outlined in the Umatilla River Vision (Jones et. al. 2008) and include elements such as floodplain reconnection, side channel reconnection, habitat structures, and fish passage improvements. Morgan also serves as treasurer on the River Restoration Northwest Board of Directors.  

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Patrick Edwards, Ph.D.

  • Faculty, Portland State University's Environmental Science and Management
  • Director, PSU Environmental Professional Program

Pat is faculty in the Environmental Science and Management Department and director of the Environmental Professional Program at Portland State University. His research interests include stream invertebrates, bioassessment and citizen science. Pat has 20 years of experience conducting aquatic stream invertebrate surveys and is author of the Stream Insects Field Guide. Pat earned his Ph.D. from Portland State’s School of the Environment and also has a Masters in Science Education. For more information, visit Pat’s website.

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Liz Gilliam, MS

  • Restoration Project Manager, Clackamas River Basin Council

With extensive experience in field ecology and fluvial geomorphology, Liz has managed and supported interdisciplinary projects linking geomorphology, stream ecology, ecohydraulics, bioassessments and aquatic habitat restoration. Her work incorporates technical analyses using a process-based approach, to develop practical and sustainable solutions to complex environmental issues. Her technical experience investigating the interaction of natural systems and anthropogenic activities enables her to guide rehabilitation projects that maximize environmental benefits within given physical and regulatory constraints. Originally a field ecologist, she brings over 15 years’ experience of field data collection and analysis techniques to the Site Evaluation and Assessment course.

Liz has served on the Board of Directors for the Salmonid Restoration Federation, has managed several grassroots environmental monitoring programs, and continues to provide guidance for restoration planning to watershed groups and non-governmental organizations. She has surveyed the dynamics of water, rocks, wood, fish, amphibians and raptors in California and the Pacific Northwest, as well as the Rocky Mountains and Neotropics. For more information, visit Liz’s profile page.

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Brad Hermanson, P.E., PMP

  • Manager, Hart Crowser Environmental Sciences and Engineering Business Unit

Brad Hermanson, PE, PMP manages Hart Crowser’s Environmental Science and Engineering Business Unit as well as the firm’s Portland office.  Hart Crowser is a 110-person engineering and environmental consulting firm.  Brad has a bachelor’s degree in chemical engineering and a master’s degree in civil/environmental engineering from Oregon State University, and a master’s degree in business administration from the University of Oregon.  He is a Professional Engineer in both Chemical and Environmental Engineering.

Brad has worked in the consulting engineering industry for over 30 years. Brad’s technical and regulatory specialties include environmental cleanup and he has been involved with over 60 federal and 20 state cleanup sites. He has been project manager, program manager, or provided senior project management support on some of the largest and most controversial environmental projects in the Pacific Northwest. For example, for seven years he provided consulting support to EPA as project manager for the Portland Harbor CERCLA RI/FS project on the lower Willamette River. He also provided project management support to the Port of Portland and Corps of Engineers on the Columbia River Channel Improvement Reconsultation project.

Brad has a high expertise in project management. He was Corporate Director of Project Delivery and Quality at Parametrix, and a Regional Project Execution Leader at CH2M HILL. He speaks frequently about many aspects of project management. He is a recognized leader in project risk management, and taught or co-taught the PMI Portland Chapter PMP certification risk management section for almost ten years. He has given global webinars and spoken at international conferences on risk management, decision-making, and organizational development.

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Chris James, CWM, CERP

  • Hydrologist, Tetra Tech, Inc.

Chris James is a hydrologist with Tetra Tech, Inc., and has both managed and served as lead hydrologist on projects to restore or enhance fisheries habitat at the reach- and watershed-scale throughout the United States. He has conducted surface water analyses, performed geomorphic and aquatic habitat assessments, developed habitat suitability models of existing and proposed conditions, completed designs, acquired permits, and managed construction for a variety of projects to benefit threatened and endangered anadromous and resident fish species. He has developed programs to monitor the effectiveness of stream restoration and enhancement efforts and has been integral in their implementation, analyses, and reporting. Since 2008, he has managed or been the technical lead on nearly 100 projects for over 35 clients focused on fish passage and river restoration and enhancement.

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Melanie Klym, PE

  • GeoEngineers

As a water resource engineer, Melanie leads efforts to evaluate and improve stream and wetland habitat for salmon and other species. Her work is often part of efforts by state and local agencies to protect sensitive ecosystems from damage, repair them when they’ve already been impacted and harmonize built infrastructure such as bridges and dams with the surrounding environment.

At GeoEngineers, Melanie evaluates geologic, hydrologic and biological data to understand habitat factors that might affect a species. She uses hydraulic analysis, channel reconfiguration and engineered wooden structures to augment and enhance available habitat in a given river system. Her interdisciplinary background helps Melanie understand and then communicate complex project strategies to colleagues and clients.

Timmie Mandish

  • Fish Biologist, Natural Resources Conservation Service

Timmie Mandish is the Western National Fish Biologist for the NRCS where she provides technical assistance and training to 13 western states out of their West National Technology Support Center. She has 20 years of experience in the natural resources field primarily focusing on fisheries biology and habitat restoration, and how restoration practices can be integrated into viable solutions for working landscapes. Prior to her employment with NRCS, Timmie was a project manager and technical lead for the Bonneville Power Administration, where she worked with local stakeholders to developed tools to incorporate available research, monitoring and physical data into a GIS format for decision making. These tools helped to advance a framework for strategic implementation of habitat restoration based on current science, vetted by feasibility. In addition, she oversaw and contracted a wide variety of restoration, flow, research, & hatchery projects within agricultural communities. As well as acted as the Technical Liaison between the agency policy team and field level project implementation, providing feedback on how policy decisions would affect implementation of work.

Timmie’s experience also includes 10 years with the U.S. Fish & Wildlife Service implementing restoration projects on private land finding the common ground between fish and wildlife species recovery and land management needs of the landowner.

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Shivonne Nesbit, MS

  • Fish Biologist, NOAA West Coast Region

Growing up on a lake in Eastern Canada, Shivonne's passion for ecosystems began at an early age. Shivonne moved west to pursue a degree in Natural Resource Science at Thompson River University in Kamloops, BC. This multidisciplinary degree led Shivonne to work for a diversity of agencies while in BC including: BC Forest Service, Agriculture Canada and BC Conservation Foundation. Shivonne's last employer while in BC was the Department of Fisheries and Oceans Canada (DFO). Shivonne's primary role with DFO was developing a stream restoration assessment protocol to guide field assessments of stream restoration projects.

In 2003, Shivonne migrated south for a position with the Oregon Department of Fish and Wildlife and spent 12 years working for ODFW as a fisheries biologist. Shivonne took a leave from work in 2007 to pursue a Master's degree in Fisheries Science at Oregon State University. The focus of the Shivonne's thesis was movement patterns and population dynamics of redband trout and mountain whitefish in the Crooked River, OR. Shivonne returned to work in 2010 in a joint role for the ODFW and the USFWS focusing on ESA related matters. Serving as ODFW's Endangered Species Act (ESA) coordinator enhanced Shivonne's interest in the connections between policy and science, so in the fall of 2014, Shivonne decided to take advantage of a new employment opportunity working for NOAA on ESA policy and Section 7 consultations. Shivonne has a diverse ecological background and a deep love for the natural world.

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Sue Niezgoda, Ph.D., P.E.

  • Associate Professor of Civil Engineering, Gonzaga University

Dr. Niezgoda is an Associate Professor of Civil Engineering at Gonzaga University and a registered licensed engineer in the state of Wyoming. She has an emphasis in water resources engineering and teaches and conducts research in the areas of engineering education, hydraulic engineering, river engineering/stream restoration, soil erosion and sediment transport, uncertainty and risk assessment, and porous pavement applications.

Dr. Niezgoda has developed a risk-benefit assessment method based on design failure modes and effects analysis for use in selecting streambank stabilization measures and improving the design of stream restoration projects.  She is actively working on two monitoring related research efforts: the development of an effectiveness monitoring protocol for urban stream restoration projects, and a long-term study evaluating the water quantity reduction and water quality treatment effectiveness of porous pavement when it’s applied to arterial roadways in cold climates.  Dr. Niezgoda is also actively involved in the ASCE Environmental and Water Resources Institute, holding officer positions in task committees under the Hydraulics and Waterways Council.  Working with members of the Stream Restoration Educational Materials Task Committee, Dr. Niezgoda has developed a stream restoration body of knowledge that synthesizes the state-of-the-art in stream restoration education requirements and sets the basis for developing a national certification. Dr. Niezgoda is also highly active in River Restoration Northwest (RRNW), and is currently the President of the board of directors. RRNW is a non-profit organization which seeks to advance the science and standards of practice in river restoration through educational programs that emphasize a process based, interdisciplinary approach to restoration.  She has published numerous papers on a variety of river issues, including bridge scour, sediment transport, risk and uncertainty in stream restoration design, channel forming flow predictions, and the erodibility of cohesive channels. For more information, visit Sue’s faculty profile page.

Peggy O’Neill, PWS

  • Senior Environmental Biologist/Botanist, Jacobs Engineering

Peggy is a senior botanist and wetland scientist at Jacobs Engineering (formerly CH2M HILL) with over 23 years’ experience working on projects throughout the Pacific Northwest, the desert southwest, and even a bit in the northeastern US. As a senior technical consultant, she leads teams of wetland scientists and botanists on various public and private projects. She holds a Master of Science degree from Portland State University in Environmental Resources and Management where her area of focus was botany and plant ecology. She is a member of the Society of Wetland Scientists and is a certified Professional Wetland Scientist with that organization. She has conducted and lead wetland delineation and botanical surveys, including rare plant and noxious weed surveys, throughout the Pacific Northwest, California, and the desert southwest, for road and bridge construction projects, wastewater and drinking water treatment facilities, pipeline projects, and renewable energy projects including solar and wind power projects. She developed the protocol for identifying the rare remnant Palouse Prairie grassland habitat in southeastern Washington while working on a wind power project in that region.

Peggy O'Neill, PWS

Phil Scoles, RPSS, PWS

Phil Scoles owns his own earth science consulting firm, specializing in delineations, soil science and restoration. Scoles' technical knowledge and working skills with West Coast hydric soils and wetland hydrology is firmly and richly practical as well as academic. As a respected and professionally based soil scientist, businessman and instructor, Scoles delivers both good science as well as a professional hands-on approach to the everyday complexity of wetland business.

Brook Silver

  • Fish Biologist, U.S. Fish and Wildlife Service

Brook has worked as a fish biologist for 15 years in the Pacific Northwest.  Before arriving at the U.S. Fish and Wildlife Service in Vancouver Washington, she worked at the Oregon Department of Fish and Wildlife (Coded Wire Tag Recovery Lab and Salmonid Life Cycle Monitoring Project), the U.S. Forest Service (Sierra National Forest aquatic and amphibian surveys), and the USFWS (Sacramento-San Joaquin Delta Fish Monitoring Program). Currently she develops and implements projects that evaluate fish passage, abundance, and distribution of wild and hatchery fish. You can also find her in Tryon Creek, an urban stream in southwest Portland, where she works with the City of Portland to monitor fish after habitat enhancement projects are completed.

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Terril Stevenson, R.G., L.P.G.

  • Geomorphologist, Wolf Water Resources

Terril is a senior geomorphologist at Wolf Water Resources, joining them after 35 years of experience in the US Federal Government, most recently as the regional fluvial geomorphologist and group lead for River Systems Analysis and Design at the Pacific Northwest Region of the US Bureau of Reclamation. In that position Terril was responsible for technical aspects of habitat actions implemented as part of the Federal Columbia River Power System Biological Opinion (FCRPS Biop). Terril also worked for US Bureau of Land Management and US Natural Resources Conservation Service. She received her Geology degree from Brigham Young University followed by additional studies in soils and botany at Boise State University. She is a licensed professional geologist in both Oregon and Idaho. She has extensive experience with geomorphic assessment, watershed and resource planning and stream restoration design and implementation. Her expertise also includes environmental compliance, policy development, and partner and stakeholder relations. She has worked throughout the western United States including Alaska, Washington, Montana, Oregon, Idaho, Nevada and Utah. She was on the Board of Directors of River Restoration Northwest from 2010 through 2018, and served in officer positions including President.

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Steve Winter, PH, PWS

  • Natural Systems Design

Steve is an avid cyclist and river walker with over 18 years of experience observing and restoring rivers, streams, and wetlands in Washington, Oregon, and California. He is a registered Professional Hydrologist and Professional Wetland Scientist, whose projects range from technical investigations of detailed site specific phenomena to large, multi-disciplinary projects that span multiple years. Steve brings a balanced view to projects with a keen understanding of the interplay between physical and ecological processes and the critical steps needed to achieve restoration goals and keep projects on schedule and under budget. He is known for his understanding of estuarine processes and has worked extensively in the nearshore environments of the Lower Columbia River and Puget Sound.

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