About Us

Statement of Qualifications

Deep Foundations Experience

Earth Retaining Systems (Coming Soon!)

Slope Stabilization (Coming Soon!)

Timothy C. Siegel, P.E., D.GE Senior Principal Engineer / CEO
Paul J. Axtell, P.E., D.GE Senior Principal Engineer / COO
W. Robert Thompson, III, P.E., D.GE Senior Principal Engineer / CFO
Dan Brown
Dan A. Brown, Ph.D., P.E., D.GE – Chief Engineer and Senior Principal
J. Erik Loehr, Ph.D., P.E. – Senior Principal
Barry J. Meyer, P.E. – Senior Principal
John Turner
John P. Turner, Ph.D., P.E., P.G., D.GE – Senior Principal
Other Engineers
Andrew Boeckmann, Ph.D., P.E.
Cody Coonradt, E.I.
Dan Ding, Ph.D., P.E.
Nathan Glinski
Nathan E. Glinski, E.I.
David Graham
David S. Graham, P.E.
Ali Leib-Day
Alexia R. Leib-Day, P.E.
Mark Madgett_s
Mark Madgett, P.E.
Robert M. Saunders, P.E.
Will Shaffer, E.I.
Sam Sternberg, P.E.,  D. GE.
Benjamin J. Turner, Ph.D., P.E.
Admin Support Staff

Catherine Bedley

Catherine been an anchor at DBA since almost the beginning of the firm.  She provides administrative support for day-to-day operations in many areas. Her primary responsibilities are accounting tasks (invoicing, receivables, payables) and maintaining the firm’s engineering licensing and business registrations in every state of practice (almost every state!).  She assists DBA Project Managers with contract administration, client relations, and subcontractor management.  Catherine also provides support of HR activities and other areas as needed.

Justin Baxter

Justin Provides administrative support for day-to-day operations in many areas. He oversees and coordinates HR responsibilities for all employees and keeps the firm informed on HR issues. He supports customer-facing operations from project set-up all the way to collecting payment, working closely with DBA Project Managers as well as Client Representatives to assist in smooth project invoicing and payments.  Justin also assists with client and sub-consultant contracts, helping make sure contract lines are in place as well as assisting with risk management.   In his roles with HR and contracts, he helps to ensure the company adheres to legal guidelines with local, state, and federal laws

Specialists in Deep Foundation Design, Construction, and Testing and Slope Stability Problems