HydroDam’s Flood Barrier Systems Help Homeowners Mitigate Risk and Reduce Damage. You need flood barriers, because as storm patterns grow more unpredictable, homeowners are increasingly vulnerable to sudden, severe weather events. Pinellas County is positioned in a particularly bad spot, with many cities and neighborhoods prone to flooding. Hillsborough is nearby and is in much the same situation. Traditional flood protection methods, such as sandbags or makeshift barriers, are labor-intensive, unreliable, and often prove insufficient. Our aluminum flood barriers are the best in the industry, get your free estimate now – click here..