The Network for Engineering With Nature® (EWN) invites you to the N-EWN Knowledge Series: A Continuing Education Series about Engineering with Nature- Application of Natural & Nature-Based Features in Channel Stabilization with David S. Biedenharn, P.E., Ph.D. Dr. Biedenharn is a professional engineer with over forty years of experience in hydraulics, river engineering, sediment transport, and fluvial geomorphology with the U.S. Army Corps of Engineers Vicksburg District, Lower Mississippi Valley Division office, the U.S. Army Engineer Research Development Center (ERDC) at the Waterways Experiment Station (WES), and the Biedenharn Group.