Flood

James C. Schaap

On August 17, 1962, President John F. Kennedy stood behind a podium just north of Pierre, South Dakota. The President of the United States was here for the dedication of Oahe Dam, an earthen monster that created the fourth largest man-made reservoir in the world. 

Seven mighty Oahe turbines create enough electricity to power whole regions of the country. Oahe Dam stands 245 feet above the river bottom and required 92 million cubic yards of fill dirt, plus well over a million cubic yards of concrete.

weather.gov

More flooding is likely along the Missouri River after heavy rains and flooding upstream in South Dakota.

The National Weather Service says some moderate flooding is likely this week along the river between Sioux City, Iowa, and Rulo, Nebraska.

Some parts of South Dakota received as much as 7 inches of rain over two days.

The Missouri River is expected to crest later this week after rising significantly.

Tony Webster / Flickr

When white settlers moved into northwest Iowa in the late 19th century, they squared the landscape with mud roads that make the flat land a grid. Of 23 townships of Sioux County, 19 are cut out into perfect squares.