2001-Present   AGC Endowed Chair Professor,
                        Dept. of Civil Engineering, University of New Mexico.

1997-2001      COTA Fellow,
                        Virginia Polytechnic Institute and State University.

1993-1996      Director, Extension to Business and Industry,
                        Professor, Civil and Construction Engineering,
                        Iowa State University.      

1993-1995      Interim Associate Dean for Extension,
                       College of Engineering, Iowa State University.

1987-1994      Co-Consulting Editor, McGraw-Hill Construction Engineering series of texts

1986-1993      Professor of Construction,
                       Arizona State University.

1983-1986      Assistant/Associate Professor Construction Enginerring,
                        Iowa State University.

1978-1983       Assistant Professor,
                         Industrial Construction Management, Colorado State University.