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David T. Williams, P.E., Ph.D., P.H., CPESC, CFM, D.WRE

President at DTW and Associates, Engineers, LLC
Fort Collins, Colorado
David T. Williams and Associates (DTW) is a certified MBE, SBE, DBE and Service Disabled Veteran owned small business. Dr. David Williams, the president of DTW, has over 35 years of experience in the water resources industry and is known nationally and internationally for his contributions to the industry. He is well versed in the computer programs HEC-1, HEC-HMS, HEC-2, HEC-RAS, HEC-6, STORM, and WQRRS. Dr. Williams is also a nationally recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries.

Dr. Williams previously served as a two time President of the IECA, past chairs of the ASCE Task Committee on Analysis of Laboratory and Field Sediment Data Accuracy and Availability, past chair of the ASCE Committees - Sedimentation Committee, Computational Hydraulics, Stream Restoration and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications), standards for both welded and twisted (woven) gabions and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. Geological Survey, Bureau of Land Management, Forest Service, TVA, Bureau of Land Management and the Agricultural Research Service. He is the author of more than 100 technical papers and reports on hydraulics and sedimentation. Dr. Williams was formerly an Associate Editor of the ASCE Journal of Hydraulic Engineering, as well as a reviewer and currently on the executive Board of the American Institute of Hydrology.
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David T. Williams and Associates (DTW) is a certified MBE, SBE, DBE and Service Disabled Veteran owned small business. Dr. David Williams, the president of DTW, has over 35 years of experience in the water resources industry and is known nationally and internationally for his contributions to the industry. He is well versed in the computer programs HEC-1, HEC-HMS, HEC-2, HEC-RAS, HEC-6, STORM, and WQRRS. Dr. Williams is also a nationally recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries.

Dr. Williams previously served as a two time President of the IECA, past chairs of the ASCE Task Committee on Analysis of Laboratory and Field Sediment Data Accuracy and Availability, past chair of the ASCE Committees - Sedimentation Committee, Computational Hydraulics, Stream Restoration and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications), standards for both welded and twisted (woven) gabions and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. Geological Survey, Bureau of Land Management, Forest Service, TVA, Bureau of Land Management and the Agricultural Research Service. He is the author of more than 100 technical papers and reports on hydraulics and sedimentation. Dr. Williams was formerly an Associate Editor of the ASCE Journal of Hydraulic Engineering, as well as a reviewer and currently on the executive Board of the American Institute of Hydrology.

Dr. Williams has been a short course instructor for ASCE, Federal and State Agencies for computer training workshops on: HEC-2, HEC-RAS, HEC-HMS and HEC-6 and has taught short courses on streambank protection design, sediment transport, bridge scour, and fluvial geomorphology.

About Me

What certifications do you have?
Certified professional erosion and sediment control (CPESC)
EnviroCert International

Certified floodplain manager (CFM)
ASFPM

Professional hydrologist (PH)
American Institute of Hydrology

Diplomate, Water resources engineering (D.WRE)
American Academy of Water Resources Engineers

Professional Engineering License in 11 states
CA, MS, HI, OR, CO, LA, TX, WA, NM, MO, AZ
What publications have you contributed to?
Wu, Weiming, Williams, David T., et.al, “Earthen Embankment Breaching”(Link)
ASCE Hydraulics Journal

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Associations

Association Position
Floodplain Management Association of CA, HI, and NV
International Erosion Control Association

Education

School Degree Graduation Year
University of California, Davis BSCE, Civil Engineering 1972
University of California, Davis MSCE, Environmental Civil Engineering 1977

Contact Information

DTW and Associates, Engineers, LLC

1112 Oakridge Dr Ste 104
Fort Collins, CO 80525