National water resources expert joins PBS&J

ORLANDO, FL, Jan. 31, 2006 -- David T. Williams, Ph.D., P.E., P.H., DWRE, CPESC, has joined PBS&J as national technical director for water resources. He is based out of the firm's San Diego, CA, office. Williams is a nationally recognized expert in hydrologic, hydraulic, sedimentation engineering, and river restoration and is a frequent instructor on numerous water resources subjects.

In his new role, Williams will provide technical guidance to PBS&J's clients, assist in client relations, develop innovative tools and solutions to a wide variety of complex engineering problems, and coordinate firm-wide water resources activities.

Williams has more than 30 years of experience in water resources and was previously president of WEST Consultants, a nationally known water resources engineering firm he helped form in 1988.

Before forming WEST Consultants, Williams' professional experience included more than 18 years as a hydraulic engineer with the U.S. Army Corps of Engineers at the Engineering Research and Development Center (ERDC) in Vicksburg, MS, previously known as the Waterways Experiment Station; both the Nashville and Baltimore Districts; and the Hydrologic Engineering Center (HEC) in Davis, CA.

For the U.S. Army Corps of Engineers Hydrologic Engineering Center (HEC), he authored the draft of the second version of the HEC-6 Users' Manual. He has served as principal-in-charge for several flood insurance studies in San Diego and Orange counties, performed HEC-6 and local scour analysis of pipeline crossings in Arizona and New Mexico, and headed the Keene Ranch groundwater modeling study and the Nile River sedimentation evaluation. He has been the instructor of the American Society of Civil Engineers (ASCE) HEC-2, HEC-RAS, and Bridge Scour Analysis short courses, which are presented throughout the United States.

Williams has served as president of the International Erosion Control Association, chair of the Federal Interagency Technical Committee on Sedimentation, and chair of the ASCE's Computational Hydraulics Committee and the Sedimentation Committee. He is currently on the ASCE's Manual of Practice on Erosion Control and Stream Restoration Committees. He has authored more than 100 technical papers and reports on hydraulics and sedimentation and was formerly a reviewer and associate editor of the ASCE Journal of Hydraulic Engineering.

Williams is a registered professional engineer in California, Hawaii, Oregon, Texas, Mississippi, Washington, Oregon and Arizona; a registered professional hydrologist; and a certified professional in soil erosion and sediment control. He holds a doctorate in civil engineering from Colorado State University and master's and bachelor's degrees in civil engineering from the University of California-Davis. He can be reached at (858) 874-1810, or by email at dtwilliams@pbsj.com.

PBS&J (www.pbsj.com) serves public and private clients by meeting their challenging planning, environmental, engineering, architecture, construction management, and program management needs. The employee-owned firm is ranked by Engineering News-Record as 21st among the nation's top consulting firms. PBS&J has 3,800 employees and more than 70 offices located throughout the United States and abroad.

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