Three years after stepping in as dean of the University of Iowa’s nationally-ranked College of Engineering, Harriet Nembhard is leaving to become president of a Southern California liberal arts college specializing in science, engineering and math. Nembhard will take the reins of Harvey Mudd College in Claremont, Calif., on July 1 — three years after starting as UI dean in June 2020. She’ll continue serving as UI College of Engineering dean through June, according to UI officials.