Flood damage costs beyond buildings—A Lake Champlain case study

First posted October 5, 2023 For additional information, contact: Center Director, Science and Decisions CenterU.S. Geological Survey12201 Sunrise Valley Dr.Mail Stop 310Reston, VA 20192Contact Pubs Warehouse Floods account for more than 75 percent of Federal disaster declarations and lead other natural disasters in economic costs. Early-warning systems have lowered flood-related fatalities, but costs continue to rise as flood-prone areas continue to be urbanized (U.S. Geological Survey, 2006). A Lake Champlain case study shows that at moderate flood heights, the economic costs of non-structural damages or losses—such as temporary lodging, residential debris removal, commercial revenue losses, and road repair—can be greater than economic damages to buildings. For unprecedented flood heights, non-structural damages can still total more than 10 percent of structural damage costs.