Brett Sanders, a civil and environmental engineering professor at UC Irvine who specializes in creating flood assessments, said rainfall in San Francisco over New Year’s Eve was “an extreme event that probably approaches a 50-to-100 year event or more.” … “The combined effects of a really wet storm with aging infrastructure and with changing land use — collectively, all those three factors led to intense flooding across the region,” Sanders said. [Subscription required, you can request an electronic copy of the article by sending an email to communications@uci.edu.] Read More