DFI S3: Slopes, Support and Stabilization

August 11-13, 2026 | Charlotte, North Carolina

Join industry professionals at DFI S3: Slopes, Support and Stabilization, a 2.5-day conference that brings together industry professionals to explore improving and stabilizing soft ground, landslides and slopes, as well as supporting excavations.

Schedule Overview

Tuesday, August 11

Conference Day 1: Technical Committee Meetings and Women in Deep Foundations Reception

Wednesday, August 12

Conference Day 2: Exhibits, Technical Sessions and Welcome Reception

Thursday, August 13

Conference Day 3: Exhibits and Technical Sessions

Organizing Committee

Jeff Harmston of ECA is the S3 2026 Conference Chair, and Vaughn Godet, P.E., of Berkel & Company Contractors, A. David Miller, P.E., of ADM Consulting, Christopher Ramsey, P.E., of Schnabel Engineering, LLC, Jeff Segar, P.E., S.E., of GeoStabilization International and Miriam Smith, Ph.D., P.E., Consultant, are the Technical Program Co-Chairs. They are supported by a dedicated group of local and national industry professionals who serve on the program committee.

headshot of jeff harmston

Jeff Harmston
Conference Chair

headshot of vaughn godet

Vaughn Godet, P.E.
Technical Program
Co-Chair

headshot of christopher ramsey

A. David Miller, P.E.
Technical Program
Co-Chair

headshot of christopher ramsey

Christopher Ramsey, P.E.
Technical Program
Co-Chair

headshot of jeff segar

Jeff Segar, P.E., S.E.
Technical Program
Co-Chair

headshot of miriam smith

Miriam Smith, Ph.D., P.E.
Technical Program
Co-Chair

Cooperating Organizations