Have an attendance code? Sign In to enter it. This live web event has ended. Thank you for attending. Contributors Trent Parkhill, P.E Trent Parkhill, P.E., is a Senior Principal Geotechnical Engineer and Senior Fellow at Kleinfelder with 38 years of geotechnical experience. While Trent has worked on projects in 35 states, most of his work has been in the northeast and intermountain west. His past projects have included his role as the project manager on the north half of the downtown section of Boston’s “Big Dig” which involved building a new interstate highway beneath an existing and active interstate highway, design of a 5 mile long cable-stayed bridge in a magnitude 8.0 earthquake zone, and foundations and deep excavations for eight 30 to 45-story buildings. Trent received his master’s degree in geotechnical engineering from Purdue University.