At least 119 people have been found dead in nearly a week since heavy rainfall overwhelmed the river and flowed through homes and youth camps in the early morning hours of July 4. Ninety-five of those killed were in the hardest-hit county in central Texas, Kerr County, where the toll includes at least three dozen children.

New human settlements constructed in recent years have made the waterway more hazardous, UT-Arlington civil engineering professor says.