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Appendix A Workshop Participants BRIAN W. BEARD, Schnabel Engineering Associates, P.C., Bethesda, Maryland LYNN A. BROWN, U.S. Bureau of Reclamation, Denver, Colorado G. WAYNE CLOUGH, Virginia Polytechnic Institute and State University, Blacksburg, Virginia PHILLIP COLLYER, Battelle, Washington, D.C. PAUL FARMER, Washington Metropolitan Area Transit Authority, Washington, D.C. JAMES E. FRIANT, The Robbins Company, Kent, Washington RICHARD HAMBURGER, Consultant, Germantown, Maryland HOWARD J. HANDEWITH, Consultant, Pittsburgh, Pennslvania THOMAS J. HILL, New York City Transit Authority, New York, New York JOSEPH H. IRONS, Metropolitan Sanitary District of Greater Chicago, Chicago, Illinois W. STANFIELD JOHNSON, Crowell and Moring, Washington, D.C. DENNIS J. LACHEL, Lachel Hansen & Associates, Inc., Golden, Colorado JOHN W. LEONARD, Morrison-Knudsen Company, Boise , Idaho PHILIP MATTSON, Transportation Systems Center, Cambr idge, Massachusetts DANIEL F. MEYER, Perini Corporation, Framingham, Massachusetts CHARLES T. McGINLEY, Metropolitan Atlanta Rapid Transit Authority, Atlanta, Georgia VICTOR MONTENYOHL, Roy F. Weston, Inc., Rockville, Maryland WALTER E. NEWCOMB, Battelle Memorial Institute, Columbus, Ohio DON OLSON, CH2M Hill, Milwaukee, Wisconsin JAMES S. REDPATH, J.S. Redpath, Ltd., North Bay, Ontario, Canada DONALD C. ROSE, Consulting Eng ineer and Tudor Eng ineering Company, San Francisco, California REUBEN SAMVELS, Thomas Crimmins Contracting Company, New York, New York WILLIAM C. THOMPSON, U. S. Bureau of Reclamation, Denver, Colorado ADO VALGE, Washington Metropolitan Area Transit Authority, Washington, D.C. EDWARD L . WADDELL, JR., Washington Metropolitan Area Transit Authority, Washington, D.C. EUGENE B. WAGGONER, Consulting Engineering Geologist, San Jose, California RAYMOND O. WILLIAMS, Urban Mass Transportation Administration, Washington, D.C. 123
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SHELDON P. WIMPFEN, Consulting Engineer, Luray, Virginia VICTOR L. WRIGHT, Consulting Engineering Geologist, Placerville, California Senior Consultant CHARLES W. DAUGHERTY, DeLeuw Cather and Company, Washington, D.C. Staff, U.S. National Committee on Tunneling Technology JOHN E. WAGNER, Executive Secretary SUSAN V. HEISLER, Assistant Executive Secretary VIRGINIA IS. LYMAN, Administrative Assistant JANIE B. MARSHALL, Study Secretary 124