Texas police described some of the harrowing rescues they conducted after flash floods engulfed camps and homes in the state's Hill Country.

President Donald Trump was expected to arrive in Kerr County, Texas, Friday afternoon, one week after the area was struck by catastrophic flooding.

The state leaves building zoning and permits up to the individual counties. And in most non-city counties, such as Kerr, which had 96 deaths as of Thursday due to floods, some officials tend to be lenient towards building owners with restrictions, some state leaders and environmental experts told ABC News.

Renee Smajstrla, a 8-year-old straight-A student from Ingram, Texas, who had played a role in her school’s production of “The Wizard of Oz,” was one of the victims who died in the flash floods at Camp Mystic, her family said.

Follow for live updates in the Texas flooding as the death toll rises to 120, as rescue operations start to shift to recovery phase

President Donald Trump travels to Texas on Friday amid growing questions about how local officials responded to the devastating floods, as well as questions about the federal response -- including the fate of the Federal Emergency Management Agency -- that he has so far avoided.

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.

The Associated Press has assembled an approximate timeline of the 48 hours before, during and after the deadly flash flood, beginning with the activation of the state’s emergency response resources on July 2 — the same day Texas signed off on the camp’s emergency plan for disasters.

Just two days before devastating floods claimed at least 27 lives at Camp Mystic, the Texas Department of State Health Services signed off on the youth camp's emergency plans, according to records obtained by ABC News.