
The resource discusses the residual risk associated with dams in flood risk products. It explains how dam outlet control structures can impact flow rates downstream, leading to residual risks even when dams function as designed. The fact sheet presents examples like the impact of Hurricane Harvey on dams in 2017 and the risks associated with overtopping and breach during events like Hurricane Matthew. It also emphasizes the importance of considering dams in flood risk assessments and mapping to properly represent the risks both upstream and downstream.