Public officials in the area have come under repeated criticism amid questions about the timeline of what happened and why widespread warnings were

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

Before hundreds of first responders and volunteers from around the country came to help, it was the local residents of Texas Hill Country who faced down a deadly wall of water along the Gaudalope River and witnessed terrifying scenes.

RickRay Robertson points to a makeshift cross that withstood the July Fourth Kerrville flooding, despite being lodged only 10 inches into the ground. That faith reminds him to stand strong. And by sharing his story, it's allowing him to heal.

Without a modern flood warning system, emergency officials monitor four sensors along the Guadalupe River – including one that was knocked out in the flood.