Credit Hour Discusses the Missouri River with Professor Mark Sweeney
Sweeney addresses how sediment issues can cause problems in downstream areas like the Lewis and Clark Lake near Yankton. Because the Gavin’s Point Dam blocks the natural flow of the river, sediment builds up behind the dam, which will, in time, cause the lake to fill in.
“If you fill in that reservoir with sediment, you’re going to eventually reduce the hydroelectric capacity of the dam and reduce boating and other recreational opportunities on the lake, which could potentially have devastating economic impact to the surrounding towns,” Sweeney said.
To better understand the problems with sediment, Sweeney studies the river’s tributaries to learn where the sediment is coming from. The largest tributary, the Niobrara River in Nebraska, contributes the most sediment into the reservoir. The Missouri River itself also carries a significant amount of sediment with it in its flow.
A solution Sweeney discussed is to plant vegetation along the banks of the river to prolong the life of the reservoir.
“Mark does an excellent job explaining how lakes like Lewis and Clark near Yankton are affected by years of downstream sediment accumulation,” said Michael Ewald, host of Credit Hour. “While the problem may take years to grow, it has the potential to impact hydroelectric power generation, recreation and natural river environments and habitat."
Credit Hour is available on Apple podcasts, Stitcher, Google Play and usd.edu/podcast.
You May Also Like
AUSTIN, Texas — South Dakota senior guard Ciara Duffy was one of five Division I women's basketball players selected to the Academic All-America first team selected by the College Sports Information Directors of America (CoSIDA). Duffy earns Academic All-America honors for the third consecutive season.
SIOUX FALLS, S.D. — All five South Dakota starters scored in double-figures and the Coyotes completed perhaps the greatest regular season in Summit League history with a 63-58 win against rival and second-seeded South Dakota State in the tournament championship game Tuesday inside the Denny Sanford PREMIER Center.
VERMILLION, S.D. – Two University of South Dakota faculty members are partnering with the University of Nebraska-Lincoln and Sioux Falls agency Call to Freedom to better understand what sex trafficking survivors think about the services they receive — and to learn what services they find most helpful.