Faculty & Staff

John Bergendahl is an associate professor in the Department of Civil Environmental Engineering at WPI. John has six years’ experience as a practicing engineer in industry, and holds a BS in mechanical engineering, an MS in environmental engineering, and a PhD in chemical engineering from the University of Connecticut. He conducted postdoctoral research in the Environmental and Water Resources Engineering Program at the University of Texas in Austin. ... View Profile

My teaching and research interests focus on water quality and the safety of drinking waters. I study water from source to tap: where do contaminants originate from, what is their fate in the environment, and how do we engineer treatment processes to protect public health? I am particularly interested in preventing the transmission of pathogens through water. In source waters, I aim to identify sources of pollution and understand the fate, transport, and survival of those pollutants in the environment. ... View Profile

Prof. Liu is an Assistant Professor in the Department of Civil and Environmental Engineering at Worcester Polytechnic Institute (WPI). His research focuses on built and urban environment, occupant-building-environment interaction, and integrated design for sustainable and healthy buildings. Prof. Liu envisions his research promoting built sustainability and occupant well-being through the interface among building science, information science, public health, and social science. View Profile

My research and teaching activities in the department of Civil and Environmental Engineering are in the area of the mechanics of materials and structures. At WPI, my favorite aspect of teaching is working one on one with graduate and undergraduate students on research projects. I like to excite students’ curiosity towards discoveries and creative scientific advancements. In our research group, we focus on the fundamental principles that control the behavior of materials in engineering and biology at multiple scales. ... View Profile

Replacing our crumbling national infrastructure with conventional materials would be only a temporary solution to a critical problem. My research focuses on developing new, more durable materials for use in infrastructure, which will lead to a lowered maintenance burden, improved user safety, and a reduced environmental impact. Personally, the part that I like most about this subject is the chemistry. ... View Profile

I teach geotechnical and pavement engineering courses at WPI. My favorite teaching activities are helping students develop critical thinking skills and become independent learners and problem solvers for their future career in civil engineering. My areas of research are in the interdisciplinary aspects of highway infrastructure engineering, with the overarching goal to advance the state of the art in sustainable highway infrastructure engineering. One of my recent research areas is developing more durable and sustainable asphalt concrete through an interdisciplinary approach. ... View Profile

Harold Walker is the Schwaber Professor of Environmental Engineering in the Department of Civil and Environmental Engineering at WPI. Prior to his appointment at WPI, Professor Walker was the Founding Chair of the Department of Civil Engineering at Stony Brook University. Professor Walker also served as the co-Director of the New York State Center for Clean Water Technology at Stony Brook and was appointed by Governor Andrew Cuomo to the New York State Drinking Water Quality Council. Prior to Stony Brook, Dr. ... View Profile