Rollin Hotchkiss, Ph.D., P.E., D.WRE, is a professor of civil and environmental engineering at Brigham Young University and holds the Ira A. Fulton College of Engineering and Technology professorship in leadership. Dr. Hotchkiss has authored more than 150 papers and reports dealing with topics ranging from determining peak flows in watersheds to turbulence in natural channels and culverts. His current research areas include designing culverts that allow upstream fish passage and using high quality datasets to compare current methods for predicting sediment transport in rivers. He has taught short courses in culvert design in more than 25 states to hundreds of practicing engineers and is the author or co-author of the most recent Federal Highway Administration design manuals on fish passage through culverts. Dr. Hotchkiss currently serves as the President of ASCE’s Environmental and Water Resources Institute.