Volunteers in Fargo, North Dakota have now filled a total of 388,000 sandbags in preparation for potential flooding.
A storage shed for garbage trucks has been transformed into what's being called 'Sandbag Central.'
Volunteers are manning machines which can produce 5,000 sandbags per hour.
The goal is to fill one million sandbags. Fargo has 750,000 of them left over from the flood of 2011.
The bags may be needed to protect residents against what is predicted to be one of the top five Red River floods of all time in Fargo, and neighboring Moorhead, Minnesota.