In Texas, this family bought an Aqua Dam for $8,300 and saved their property from massive flooding - which certainly would have destroyed his house otherwise.
The possibilities for Aqua Dam appear endless. Insurance companies could have these on standby for their clients in high-risk areas.
From the manufacturer of Aqua Dam:
Aqua Dam uses available flood waters to create an impermeable barrier to protect against flooding. Aqua Dam tubes are 10 times faster to install than sandbags dikes and take far fewer people. This allows emergency response officials to concentrate volunteers on high visibility areas while using Aqua Dams to protect large areas from flooding. Aqua Dams are typically 25% cheaper than the cost of a similar sandbag dike. Aqua Dams are also inexpensive to remove and the dams can be drained and stored for reuse. The Aqua Dam flood control dam is 3 ft (0.9m) high and can hold back 28" (0.7m) of flood water. It is estimated that 75% of flood damage is caused by less than 12" (300 mm) of water making Aqua Dam flood control dams an effective tool for your emergency response team. For best results an accurate prediction of the flood crest should be available. - See more at: https://www.layfieldgroup.com/Geosynthetics/Aqua-Dam-Products/Aqua-Dam-Flood-Control.aspx