Todd Bridges

Senior Research Scientist (ST) for Environmental Science
United States Army Corps of Engineers (USACE)

Dr. Bridges is the US Army and US Army Corps of Engineers’ Senior Research Scientist (ST) for Environmental Science.  He became one of approximately 40 Senior Research Scientists within the US Army in 2006, where his responsibilities include leading innovation and research and development that support goals related to resilience and sustainability.  Dr. Bridges is the founder and National Lead for the USACE Engineering with Nature® (EWN®) initiative (, which includes a network of research, field-scale applications, and communication activities to support the development of nature-based solutions.  He led a large international collaboration over five years to develop and publish (in 2021) technical guidelines on the use of natural and nature-based features (NNBF) for coastal and fluvial flood risk management.  Dr. Bridges is the technical lead and Program Manager for the Dredging Operations Environmental Research (DOER) program, one of USACE’s largest and longest-running R&D programs.  He has chaired international working groups and guidance development for the United Nations’ International Maritime Organization and the World Association for Waterborne Transport Infrastructure (PIANC).  Over the last 30 years, he has published more than 65 peer-reviewed journal articles, several books and book chapters, and numerous technical reports. 

Dr. Bridges and his work have been recognized through receipt of several national and international awards, including receiving a Distinguished Presidential Rank Award from President Biden in 2021 for “sustained, extraordinary accomplishments.”