Karen Whitney, left, and Heather Lutz place sandbags while constructing a dike around the Whitney home in the Ponderosa neighborhood north of Bismarck on the Missouri River. Karen and her husband, Tracy, have lived in the house for 13 years and say they are determined to save their "dream home" they built new 13 years ago. Tracy commented about the volunteer effort in Bismarck/Mandan, " It's just amazing people are so good," he said. "We don't think of that on a daily basis, how good people are." Kevin Cederstrom/Forum Communications Co.