The data also highlights critical risks in other areas along the Guadalupe River in Kerr County, revealing more than twice as many Americans live in flood prone areas than FEMA's maps show.

An analysis of flood maps shows that several buildings, including those where children were sleeping, were in known hazard zones. A $5 million expansion in 2019 did nothing to alleviate the problem.

The search is continuing on the grounds of Camp Mystic as more than 160 people are believed to be missing in Texas days after a destructive wall of water killed over 100 people.