North Dakota Braces for Red River Flood

March 20: National Guard troops work from a clay contingency dike to sandbag a ring dike after a failed plug in the storm sewer caused water to back up in Moorhead, Minn. (AP)

March 20: National Guard troops work to sandbag a ring dike after a failed plug in the storm sewer caused water to back up in Moorhead, Minn. (AP)

March 20: Residents in Moorhead, Minn. pump water from their yards after a failed plug in the storm sewer caused water to back up on Saturday. (AP)

March 20: Janice Hanstine runs an extension cord up a clay contingency dike in Moorhead, Minn. for a sump pump. A failed plug in the storm sewer caused water to back up on Saturday. (AP)

March 17: Volunteers form an assembly line to pass sandbags while building a dike up to 40-feet around a south Moorhead, Minn. home on Wednesday. Schoolchildren, parents and hundreds of residents spent days packing and stacking sandbags to protect their cities against the rising Red River. The National Guard is in place, keeping watch over the water. Dike builders are finishing last-minute work. (AP)