“Flooding is probably one of the toughest hazards to get right,” said Brett Sanders, a professor of civil and environmental engineering at UC Irvine. He and his colleagues developed a detailed flood model for Los Angeles that highlighted much higher flood risk than indicated in federally defined floodplains. In a 2024 study, Sanders and colleagues reported that just 20% of the Los Angeles properties their model identified as having a high risk of flooding overlapped with First Street’s predictions. Read More