The U.S. Army Corps of Engineers Missouri River Basin Water Management Division reports runoff in the Missouri River Basin above Sioux City, Iowa, for August was 1.5 million acre feet (MAF), 108 percent of normal. The 2015 runoff forecast is 25.0 MAF, 99 percent of average. Average annual runoff is 25.2 MAF. System storage peaked in early July at 61.9 MAF, occupying 36 percent of the available flood storage.
The Missouri River Recovery Implementation Committee (MRRIC) met in Omaha, Nebraska, August 25–27. Missouri Basin Tribes participating in MRRIC communicated their desire to ensure that cultural resources were considered during the development of the Missouri River Management Plan and EIS and that the National Historic Preservation Act was not impacted by any decisions made moving forward. Tribal representatives emphasized that the committee should work together on the basis of mutual respect to resolve any issues that may impact tribal lands or their cultural resources. MRRIC members welcomed new representatives from the Crow Nation and the Winnebago Tribe of Nebraska. Additionally, the Flandreau Santee Sioux Tribe, Iowa Tribe of Kansas and Nebraska, Cheyenne River Sioux Tribe, Oglala Sioux Tribe, and the Fort Peck Tribes participated in the meeting.