News Releases

10 Oct 2017

Gavins Point releases reduced to lessen downstream flooding; public meetings set for mid-October

Gavins Point releases were reduced from 31,000 cubic feet per second (cfs) to 26,000 cfs to lessen downstream flooding. Heavy rainfall in the lower Missouri Basin resulted in increased tributary flows below the Missouri River Mainstem Reservoir System (System). Gavins Point releases will be increased back to 31,000 cfs as downstream flows recede. Fort Randall releases were reduced to as low as 19,500 cfs to limit the rise of the Gavins Point reservoir level, which was impacted by high runoff from localized rain and reduced releases.

6 Sep 2017

Gavins Point winter releases determined; Corps to hold public meetings in mid-October

Based on the September 1 System storage check, the U.S. Army Corps of Engineers (Corps) announced that the Gavins Point winter release rate will be at least 17,000 cfs. The total volume of water stored in the Mainstem Reservoir System is currently 60.2 MAF, occupying 4.1 MAF of the 16.3 MAF combined flood control storage zones. “System storage peaked on July 9 at 61.8 MAF and is gradually declining. The water currently stored in the annual flood control zone will be released during the remainder of the year to serve navigation, water supply and other downstream purposes and will be completely evacuated prior to the start of next year’s runoff season,” said John Remus, chief of the Corps’ Missouri River Basin Water Management Division. Garrison releases will be reduced from the current release rate of 30,000 cubic feet per second (cfs) to the fall rate of 20,000 cfs beginning September 10. Missouri River stages in the Bismarck area will decline about 3.0 feet due to the release reduction from Garrison.

4 Aug 2017

Drought conditions continue across upper Missouri River Basin

Drought conditions continue across the upper Missouri River basin according to the U.S. Army Corps of Engineers. “With the exception of the Fort Peck to Garrison reach, runoff into the Missouri River mainstem reservoirs during July was below average due to the continuing drought conditions in the upper basin.” said Jody Farhat, chief of the Corps’ Missouri River Basin Water Management Division. “Runoff into Garrison was 124 percent of average, due to runoff from the remaining mountain snowmelt. July runoff ranged from 20 to 90 percent of average in the other reservoir reaches.” Runoff above Sioux City, Iowa for the month of July was 3.3 million acre feet (MAF), 101 percent of average. The 2017 runoff forecast for the Missouri River Basin above Sioux City, Iowa, is 27.9 MAF, 110 percent of average. As previously announced, the Corps will be providing flows to support full-service navigation as well as a full, eight-month navigation season. Full-service flow support is generally sufficient to provide a navigation channel that is 9 feet deep and 300 feet wide. “Gavins Point releases will be adjusted as necessary to meet full-service navigation targets in reaches with commercial navigation,” added Farhat. The September 1 system storage check will determine the winter releases from Gavins Point. The Corps has announced that John Remus has been selected as the new chief of the Missouri River Basin Water Management Division. Mr. Remus currently serves as the chief of the Hydrologic Engineering Branch in the Corps’ Omaha District. Mr. Remus assumes the duties of the position in late August and replaces Ms. Farhat, who is retiring.

7 Jul 2017

Drought conditions expand in Upper Missouri River Basin; Gavins Point releases lowered in early July

Drought conditions in the upper Missouri River basin have expanded and intensified during the past month, reducing inflows to the Missouri River Mainstem Reservoir System. As a result, the U.S. Army Corps of Engineers, Missouri River Basin Water Management Division made a slight reduction in Gavins Point releases this week, from 33,000 cubic feet per second (cfs) to 32,000 cfs. Gavins Point releases were held steady at 33,000 cfs during June. The total volume of water stored in the reservoir system is currently 61.8 MAF and is nearing its annual peak. With approximately 65 percent of the flood control storage remaining, the reservoirs remain well positioned to capture runoff from summer rainfall events in the upper basin. The vacant flood control storage will also allow for future reductions in Gavins Point releases in response to summer rainfall events in the lower basin if necessary. The 2017 runoff forecast in the Missouri River Basin above Sioux City, Iowa, is 28.5 MAF, 113 percent of normal. Runoff above Sioux City, Iowa in June was 5.8 MAF, 106 percent of normal. The melt of the mountain snowpack is complete and inflows to the reservoirs are declining.

6 Jun 2017

Gavins Point releases increased as downstream flows recede

The U.S. Army Corps of Engineers (Corps) Missouri River Basin Water Management Division increased releases from Gavins Point in late-May as tributaries downstream of Gavins Point receded. Releases from Gavins Point had been reduced to 20,000 cubic feet per second (cfs) in mid-May to lessen flooding along the lower Missouri River due to widespread, heavy rainfall in parts of Nebraska, Kansas, and Missouri. Releases are expected to remain at the current rate of 33,000 cfs through June. The mainstem reservoir system began the 2017 runoff season with the full 16.3 million acre-feet (MAF) of flood control storage available. The total volume of water stored in the reservoir system is currently 60.5 MAF.

4 May 2017

Gavins Point releases reduced to lessen downstream flooding

The U.S. Army Corps of Engineers (Corps) Missouri River Basin Water Management Division reduced releases from Gavins Point in early May. Downstream Missouri River and tributary flows increased due to widespread, heavy rainfall in parts of Nebraska, Kansas, and Missouri. “Rainfall events like we’ve seen recently can cause localized flooding downstream of the reservoir system. Gavins Point releases were reduced from 30,000 cfs to 21,000 cfs over several days to lesson downstream flooding,” said Jody Farhat, chief of the Corps’ Missouri River Basin Water Management Division. Releases from Gavins Point will be increased as downstream flows recede. “Flood risk reduction remains a primary consideration. While the risk of widespread flooding from upper basin runoff is low this year, floods can and will occur as a result of spring and summer thunderstorms, particularly along the lower Missouri River,” said Farhat. When possible, the Corps will utilize the available flood control space in the reservoirs to limit downstream river levels; however, the ability to significantly reduce flood risk along the lower Missouri River diminishes at locations further downstream due to the large uncontrolled drainage area and the travel time from Gavins Point Dam.