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Subsurface Characterization for Deep Foundations
This technical committee is intended to focus on considerations for site investigation for the design and construction of deep foundations. The formation of the committee is rooted in a need to increase awareness of the importance of complete and competent site investigation in deep foundation practices.

Committee Chair
Scott Walker, P.E., G.E.
Langan Engineering and Environmental Services, LLC
Scott Walker, P.E., G.E., is a principal engineer at Langan Engineering and Environmental Services, LLC, with more than 25 years of experience providing geotechnical and seismic engineering solutions for projects across California, Washington and southwestern Montana. Specializing in creating value for his clients, Walker’s projects often require a combination of practical and sophisticated solutions to economically solve geotechnical challenges and seismic hazards. He has worked on some of the deepest excavations and longest foundations for tall buildings in the San Francisco Bay area. Walker is active in the industry by serving on committees within DFI, the San Francisco Geo-Institute and Structural Engineers Association of Northern California.
Purpose Statement
- Increase stakeholder awareness of the necessity to effectively manage ground risks.
- Promote the value of proper and adequate subsurface exploration and characterization for informed design, improved constructability and bid economy.
- Promote effective procurement practices for subsurface characterization services.
- Promote proper and appropriate methods, including innovative technologies when suitable, and recognize appropriate standards for performing subsurface exploration and characterization.
- Promote adequate construction observation monitoring to determine whether field modifications are necessary during construction.
- Collaborate with similar organizations to improve the professionalism of subsurface characterization.
Committee News & Events
- DFI Announces New Chair for Subsurface Characterization for Deep Foundations Committee
- Call for Abstracts Released for First International Conference on Monitoring While Drilling
- May-June 2024 Committee Chair’s Report in Deep Foundations magazine
- Mary Nodine published in the Boston Society of Civil Engineers Section (BSCES) newsletter
Fundamentals
Our fundamentals lay the deep foundations for all our work.