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Steven D. Dapp Dan Brown and Associates, PC Sequatchie, TN |
Derrick Dasenbrock Minnesota Department of Transportation Minneapolis, MN |
 Mickey M. Davachi Coffey Calgary, Alberta, Canada |
 Schnabel Foundation Company Sterling, VA |
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Fred R. DeLeon, Jr. ATC Group Services, LLC Alabaster, AL |
 Norman Dennis, Jr. University of Arkansas Fayatteville, AR |
 Terracon Consultants, Inc. Lenexa, KS |
Darren Diehm GEI Consultants, Inc. Chicago, IL |
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Scott J. DiFiore Simpson Gumpertz & Heger Inc. Wrentham, MA |
Jerry Dimaggio Applied Research Associates, Inc. Crofton, MD |
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Srikanth Dinakaran Kleinfelder Irving, TX |
Morris Dirnberger Kaskaskia Engineering Group, LLC Belleville, IL |
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Don Dotson AMEC Earth Environmental Nashville, TN |
Charles Dowding Northwestern University Evanston, IL |
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Vincent Drnevich Purdue University West Lafayette, IN |
 Hagerty Engineering, Inc. Jeffersonville, IN |
 Arup San Francisco, CA |
H. Turan Durgunoglu Zetas Zemin Teknolojisi A S Istanbul, Turkey |
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Dean Durkee Gannett Fleming Scottsdale, AZ |
Elizabeth M. Dwyre Parsons Brinckerhoff, Inc. Indianapolis, IN |
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Ricardo C. de Abreu Fourrier and de Abreu Engineers New Orleans, LA |
