Drilled Shaft

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.

headshot of david graham

Committee Chair

David Graham, P.E., BC.GE
Dan Brown and Associates PC

David Graham, P.E., is a senior engineer with Dan Brown and Associates in Chattanooga, Tennessee. He has over 14 years of experience in the geotechnical engineering and construction industry. He has consulted on deep foundation design, load testing and construction for many major bridges throughout the U.S., including several Mississippi River crossings and the Gordie Howe International Bridge currently under construction between Detroit, Michigan, and Windsor, Ontario.

Graham is a licensed professional engineer in nine states and the District of Columbia. He is the lead author of eight peer-reviewed technical papers. An active member of ASCE and DFI, Graham holds B.S. and M.S. degrees in civil engineering from Auburn University.

Committee Initiatives

Browse our initiatives, both complete and ongoing.

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