The National Park Service's latest proposal on the use of snow machines in Yellowstone National Park is based on limiting their collective noise and air pollution and not so much on actual daily numbers.
Releases were reduced to 1,150 cubic feet per second from the Jamestown Dam Thursday evening to make room in the river channel for forecasted rain runoff, according to the U.S. Army Corps of Engineers. Releases remained at 300 cfs from the Pipestem Dam.
The corps and Bureau of Reclamation will continue to monitor rainfall forecasts and adjust releases from the dams as needed. Releases will be restored to 1,400 cfs from Jamestown and 300 cfs from Pipestem when the threat of imminent rainfall has passed.
Releases from Jamestown Reservoir were decreased by 50 cubic feet per second at 2 p.m. Thursday, according to the Army Corps of Engineers, to 1,100 cfs.
Releases from Pipestem Reservoir remain at 600 cfs. Combined releases are 1,700 cfs.
The Army Corps of Engineers will increase releases from the Jamestown Dam by 100 cubic feet per second today, according to John Bartel, field officer for the James River basin for the corps. The increase will raise the combined releases to 1,800 cfs, the maximum planned for this spring.
Bartel made his report at the interagency meeting Tuesday at the Law Enforcement Center.
“Tomorrow (Wednesday) we’ll go up to 1,800 cfs and the system is operating as designed,” he said.
Releases from Jamestown Reservoir were increased by 200 cubic feet per second at 2 p.m. Monday to to 900 cfs, according to the Army Corps of Engineers. Releases from the reservoir had been increased to 700 cfs on Saturday.
Releases from Jamestown Reservoir were increased by 200 cubic feet per second in two increments Thursday, according to the Army Corps of Engineers, raising releases from to reservoir to 500 cfs. Releases from Pipestem Reservoir remained at 300 cfs, with combined releases totaling 800 cfs.
Flood preparation continued to be a waiting game in Jamestown Tuesday with new forecasts from the Army Corps of Engineers for water levels on the Jamestown and Pipestem reservoirs not anticipated until Wednesday. John Bartel, corps field operations officer for the James River, made his report at the interagency meeting Tuesday at the Law Enforcement Center.
The U.S. Army Corps of Engineers, St. Paul District, will maintain Baldhill Dam at a discharge of 3,000 cubic feet per second throughout the next week, it said in a press release Monday.
Releases from Baldhill Dam are based on forecasted inflows from the National Weather Service. The corps must balance inflows and outflows so that the Baldhill Dam emergency spillway is not overtopped. The NWS has forecasted that the Sheyenne River will crest in Valley City on March 24 at 15 feet.
Construction on dikes in Jamestown was halted Monday afternoon, according to Paul Johnston, chief public affairs officer for the Army Corps of Engineers.
The move came after officials found the water equivalent of snowpack upstream of the Jamestown and Pipestem dams to be less than in earlier forecasts.
The Red River crested in Fargo Sunday, easing major flooding fears for residents of that city. The city’s mayor, Dennis Walaker, told the Associated Press on Sunday that it’s still too soon to celebrate. But in Jamestown, the work has just begun on dike-building as we prepare for higher water releases. And it’s time for residents to begin preparations if they haven’t already.
Plans for initiating releases out of Jamestown and Pipestem reservoirs in North Dakota were announced Saturday in a news release by the Army Corps of Engineers.
Due to abnormally high snow pack conditions in the basins upstream of the reservoirs, the corps expects high inflows into the two reservoirs this spring. Current snow pack conditions are similar to the record runoff year in 2009, the corps said. Releases from the reservoirs have been held at low levels in order to minimize downstream damages during the recent spring runoff.
North Dakota National Guard members from Jamestown were mobilized to assist the city with the construction of clay dikes in vulnerable parts of Jamestown as water levels continue to rise.
Combined water releases from the Pipestem and Jamestown reservoirs could be as high as 3,200 feet per second, according to the U.S. Army Corps of Engineers.
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