Education
Bachelor of Science, University of California Berkeley, 1943; Master of Science, University of California Berkeley, 1948.
Bachelor of Science, University of California Berkeley, 1943; Master of Science, University of California Berkeley, 1948.
Materials testing engineer, Hershey Inspection Bureau, Oakland, California, 1946-1948;
assistant professor сivil engineering, University of California Berkeley, 1948-1953;
managing engineer Pacific Coast Division, Asphalt Institute, San Francisco, 1953-1960;
vice president production development & marketing GBO Division, Witco Chemical Company, Los Angeles, 1960-1964;
president & Chief Executive Officer, Material Research & Development, Inc., Oakland, 1964-1972;
vice president, managing principal, Woodward-Clyde Consults, San Francisco-Oakland, 1968-1976;
president, Bachelor of Arts Vallerga, Inc. Consulting Civil Engineering, Oakland, since 1977. Chairman Triaxial Institute Structural Design Pavements, 1950-1952.
Board directors Woodward-Clyde Consultants, 1980-1982. Member board directors, vice president Asphalt Institute, 1962-1964. Vice president Design Division, American Road Builders Association, 1968-1970.
Chairman, Board Of Directors Woodward Envicon, 1969-1972, Subcommittee Asphalt Durability, Transportation Research Board, since 1980. General consultant Off Energy Related Inventions, Bureau Studies, Department Committee, since 1980.
Fellow American Society of Civil Engineers (member Airfield Pavement Committee 1972-1979). Member American Society for Testing and Materials (ProvostHubbard award 1989), International Society Asphalt Pavements, Association AsphaltPaving Technologists (member board directors 1960-1962, Recognition award 1988), National Academy Engineering, Sigma Xi.