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

Over the last decade, an array of local and state agencies have missed opportunities to fund a flood warning system intended to avert the type of disaster that swept away dozens of youth campers and others in Kerr County,

The organizations working together to help the flood victims said that 'no additional in-kind donations (clothing, food, supplies) are needed in Kerrville.' They said the best way to help is with monetary donations.

Flash floods surged through in the middle of the night, but many local officials appeared unaware of the unfolding catastrophe, initially leaving people near the river on their own.

Of all the counties affected, Kerr County suffered the greatest losses as a deadly wall of water roared down the Guadalupe River in the early morning hours of July 4. Wednesday evening, the City of Kerrville came together in a vigil at Antler Stadium to pray for the victims and those still missing after the flood.

Follow along for developments on the July Fourth floods along the Guadalupe River in Kerr County and Central Texas.

It took just 90 minutes for the river to rise more than 30 feet. A look at the historic flood levels now etched into Central Texas history.

As floodwaters from the Guadalupe River begin to recede, the emotional and physical toll on Hill Country residents is only just beginning to show.

Greg Adkins showed KHOU 11 News the debris left behind in his backyard, which sits right next to the Guadalupe River.