Ryan has experience in the design of underground excavations for utilities and occupancy. He also has experience in the design of the rehabilitation of underground tunnels including repair of tunnel liners and grout design for void filling.
Dr. Fairhurst obtained his Ph.D. in Mining Engineering from the University of Sheffield, UK in 1955. He joined the University of Minnesota faculty, School of Mines and Metallurgy, in 1956, serving as Head for several years until 1970, when the Mining program was joined with Civil Engineering to form the Department of Civil and Mineral Engineering. He was Head of the joint Department from 1973-87, and retired in 1997.