Technical Session-EWRI April 2021

Environmental and Water Resources Institute (EWRI)

Topic: Course Correction: Getting Farmers Branch Creek Back Under Control


David Rivera, Ph.D., PE, CFM

Scott Hubley, PE, CFM

Keith Byrne, PE, CFM

Stephen Norair II, P.G.


Dr. Rivera is a Texas A&M graduate with over 17 years of experience in the water resources field. He currently serves as Project Manager for Freese and Nichols Stormwater Group. Dr. Rivera is a Certified Floodplain Manager and has ample experience managing stormwater, water resources, and environmental projects. He is a skilled hydrologic and hydraulic modeler for both open channel and closed conduits systems. He also specializes on flood control reservoir operations modeling. Dr. Rivera has been serving the City of Farmers Branch since 2016.


Scott Hubley is a Freese and Nichols Vice President/Principal and the firm's North Texas Stormwater Group Manager. Scott has extensive experience in planning and design of municipal stormwater infrastructure and has a strong background in hydrologic and hydraulic modeling. Over his 15-year career, Scott has been involved in the design and construction of $100 million in stormwater improvements.



Keith is a professional engineer and registered floodplain manager specializing in channel stabilization in the urban setting. He is a graduate of New Mexico State and holds a Master of Engineering from Texas A&M. He has been providing hydraulic design for a decade and in the metroplex over the past 5 years. He has personally assessed over 30 miles to stream collecting geomorphological parameters. Keith uses a combination of classic stability approaches and stream restorative processes to provide protection to infrastructure.


Stephen has been a practicing geoscientist specializing in the field of fluvial geomorphology since 2014. He has conducted numerous stream geomorphic assessments, erosion studies, and stream stabilization/infrastructure protection projects. His field of expertise has allowed him to collaborate with professionals across multiple disciplines. He has conducted and developed several innovative methods to solve problems, such as root dendrogeomorphology and system scale monitoring with drone photogrammetry. Stephen provides a unique skill-set to project teams because he is able to understand the complex interactions between hydrology, sediment transport, channel stability, and infrastructure needs.