DEEP FOUNDATIONS INSTITUTE 2019-2020 Upcoming Webinar DFI Traveling Lecturer, Willie M. NeSmith, P.E., former chief geotechnical engineer for Berkel & Company Contractors, is delivering his presentation, "Application of Drilled Displacement Elements for Liquefaction Mitigation and Foundation Improvement," for ASCE San Francisco as a webinar on June 25, 2020, at 4:00 p.m. PST. The presentation examines the increase in density in the vicinity of drilled displacement piles when they are installed in materials that exhibit granular behavior. The increase is most pronounced in loose-to-medium dense materials and can serve to mitigate liquefaction and increase the foundation response stiffness of the mass of the material penetrated. Case histories highlight situations where ground improvement elements were installed using drilled displacement pile processes to mitigate liquefaction and increase allowable foundation loading. Visit 'Upcoming Events' at www.dfi.org for more information. 50 * DEEP FOUNDATIONS * MAY/JUNE 2020