KERRVILLE, Texas (AP) — Over the last decade, an array of Texas state and local agencies missed opportunities to fund a flood warning system intended to avert a disaster like the one that killed dozens of young campers and scores of others in Kerr County on the Fourth of July.

Sunday is a day of prayer across Texas. But as many filed into churches, first responders and volunteers filed into Kerr County, holding out up in their search and rescue efforts.

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

Also: San Antonio mourned the victims in a Travis Park vigil; UTSA said one of its teachers died in the Guadalupe River flood; Kerrville officials said a privately owned drone collided with a helicopter conducting search and rescue operations.

The flooding created financial peril for many small businesses owners. Now they are cleaning up and working to get back on their feet.

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.

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.

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

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.