The National Weather Service has removed the flood warning for the Big Sioux River around Sioux Falls and city officials are busy removing protective dikes and levees surrounding the city. A hundred thousand sandbags were distributed in preparation for spring flooding and now it's time to take them all back. Minnesota Public Radio's Cara Hetland reports: Sandbags are piled waste high and 15 feet wide in the zoo parking lot Tuesday morning. Six people are digging through the heep of burlap to find bags that aren't broken and put in their trunks or pick-up beds. Troy Path is hoping for about 400 pounds of sand.