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United States Department of Agriculture

Agricultural Research Service

Roger E. Smith
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Roger E. Smith

Hydraulic Engineer, Affiliate Professor in Civil Engineering at CSU

Fort Collins, CO



  • BS   1963    Texas Tech University, Civil Engineering
  • MS   1964    Standford University, Civil Engineering (Environmental Engineering emphasis)
  • PhD  1970    Colorado State University, Civil Engineering (Hydraulic Engineering and Hydrology)


  • 2000-present    Consultant in hydrology and civil engineering
  • 1976-1999         Research Hydraulic Engineer, ARS, Fort Collins.  Development of integrated interactive simulation models for hydrology of small catchments, and for simulation of the soil-plant-water system of agricultural catchments.  Faculty Affiliate, Civil and Agricultrual Engineering Depts., CSU
  • 1970-1975         Research Hydraulic Engineer, Southwest Watershed Research Center, ARS, Tucson, AZ.  Basic research into the physical and stochastic elements of soil infiltration and surface water hydrology
  • 1965-1967         Volunteer, US Peace Corps.  Rural civil engineering in northern Pakistan
  • 1964-1965         Design Engineer, Metcalf & Eddy Engineers, Palo Alto, CA.  Preliminary planning and final design for sewerage systems


  • Primary: Physics and mathematics of surface and soil water flow, especially infiltration of water, and watershed runoff.
  • Other: Physics of erosion and sediment transport processes, measurement of surface water flow, precipitation statistics, soil water flow and transport processes in randomly heterogeneous soil, mathematical modeling of interactive hydrological processes.
  • Research Interests: The physics of infiltration and redistribution of water from soil wetting events, the simulation of spatial distribution of water from various irrigation methods, the study of interrelations between rainfall/irrigation distribution, soil property distribution, and movement of agricultural chemicals.


  • Engineering School Valedictorian, 1963
  • Scholarship, Stanford University, 1964
  • Member of Tau Beta Pi, Phi Kappa Phi, Sigma Xi
  • Member of ASCE, AGU
  • Registered Professional Engineer, Arizona and Colorado
  • Postdoctoral Fellowship, IBM Thos. J. Watson Research Center
  • A.W. Mosey visiting scholar, Univ. of Western Australia, 1979
  • Robert E. Horton award, 1986, American Geophysical Union
  • Elected to Fello, American Geophysical Union, 1997
  • ARS Team Technology Transfer Awards; 1981, 1997
  • Federal Laboratory Consortium Award of Excellence in Technology Transfer


  • 60+ publications in refereed journals
  • 7 technical reports
  • 12 proceeding reports
  • 6 book chapters
  • 1 book


Last Modified: 5/15/2009
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