Water Resources: Evaluation of Erosion Problems on Upper Missouri River

In response to a congressional request, GAO evaluated streambank erosion problems on the Upper Missouri River, focusing on: (1) whether the Army Corps of Engineers conducted any erosion study before planning and constructing its six dams and lakes on the river; (2) the extent of erosion problems that are caused by the Corps' operations; (3) the environmental and economic impacts of erosion; and (4) the Corps' legal authority and liability related to the erosion problem.