Professor Emeritus, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign.

Research focused on field observations and analyses of ground behavior in slopes, excavations, deep and shallow caverns and tunnels in rock and soil; assessment and control of tunnel- and excavation-induced ground movements and building damage, and development of distortion-damage criteria.

Geotechnical Consultant: Recent projects include:

• LIRR East Side Access Project: siting and initial design recommendations for rock caverns beneath Grand Central Terminal, New York;
• (New York City Metropolitan Transportation Authority Capital Construction: construction of No. 7 line tunnels and station caverns.
• THE Partnership: design of Trans-Hudson tunnels in soil and station caverns in rock.
• Toronto Transit Commission:  ground control and monitoring for EPB tunneling beneath structure on Northern Tunnels, Spadina Line.

Member Tunnel Advisory Panel, LA Metro: subway planning, design and construction; Consultant to Seattle Tunnel Partners Joint Venture on Alaskan Way Viaduct Replacement Project for ground monitoring and control during tunneling; Member Tunnel Review Panel, DCWater, for design of Blue Plains, Anacostia River, and Northeast Boundary tunnel projects. 

Member, National Academy of Engineering, 1989; ASCE Martin S. Kapp Award; Moles Non-member Award for Outstanding Achievement in Construction, 2003; Geo Institute’s Harry Schnabel, Jr. Award for Career Excellence in Earth Retaining Structures, 2007; Outstanding Educator Award, Underground Construction Association of SME, 2012; Beaver’s Engineering Award for Outstanding Achievement in Heavy Engineering Construction, 2013; Fellow, American Rock Mechanics Association, 2013.