10 years after deadly Ellicott City flood, what’s being done to prevent another?

Ten years after two '1,000-year floods' in 2016 and 2018 caused deaths and damage in Ellicott City, Maryland, construction continues on a $386 million flood mitigation project. Key initiatives include a tunnel to divert stormwater into the Patapsco River, new alert systems, evacuation routes, and retention ponds to protect the historic district.