For navigation purposes, the Missouri River is divided into two main sections. The Upper Missouri River is north of Gavins Point Dam, the last hydroelectric dam of fifteen on the river, just upstream from Sioux City, Iowa. The Lower Missouri River is the of river below Gavins Point until it meets the Mississippi just above St. Louis. The Lower Missouri River has no hydroelectric dams or locks but it has a plethora of wing dams that enable barge traffic by directing the flow of the river into a , channel. These wing dams have been put in place by and are maintained by the U.S. Army Corps of Engineers, and there are no plans to construct any locks to replace these wing dams on the Missouri River.
For navigation purposes, the Missouri River is divided into two main sections. The Upper Missouri River is north of Gavins Point Dam, the last hydroelectric dam of fifteen on the river, just upstream from Sioux City Iowa. The Lower Missouri River is the of river below Gavins Point until it meets the Mississippi just above St. Louis. The Lower Missouri River has no hydroelectric dams or locks but it has a plethora of wing dams that enable barge traffic by directing the flow of the river into a , channel. These wing dams have been put in place by and are maintained by the U.S. Army Corps of Engineers, and there are no plans to construct any locks to replace these wing dams on the Missouri River.