Lt. Gov. David Dewhurst toured Marble Falls Thursday to view the damage.
"We're doing everything we can on the state level to get this behind us," Dewhurst said, the Austin American-Statesman reported.
Wednesday's deluge and flooding left the city with no running water, condemned houses and crumbling streets.
A stubborn storm system remained over the Texas hill country and Austin area and forecasters predicted more rain for swollen rivers.
The National Weather Service warned the Guadalupe River near Bloomington would likely flood Friday, the Victoria Advocate reported.
San Antonio received more than 3 inches of rain Thursday and was expecting more Friday, the San Antonio Express-News reported.