U.S. Army Corps of Engineers began drawing down Homme Lake near Park River, N.D., on Wednesday, the corps. The drawdown will continue at 30 cubic feet per second for the next nine days until lake elevation drops by 4 feet.
The 800-foot-structure, built between Stump Lake and a natural rise in the Tolna Coulee, is designed to prevent a catastrophic spill from the Devils Lake Basin to the Sheyenne River Valley. The unique design mimics the natural erosion that likely would occur in the coulee, while restricting downstream flows.
Paves way for official Army Corps sign-off expected in April North Dakota’s delegation in the U.S. Senate said on Friday the White House has approved the Red River diversion to move forward, a pivotal step for the $1.8 billion project to protect Fargo-Moorhead from flooding.
The Souris River flood that damaged Minot and surrounding communities was one of seven that occurred in spring and summer 2011, according to a U.S. Army Corps of Engineers report. The others were reduced by the system of Canadian and U.S. dams protecting riverside communities. The last one in June overwhelmed the system and caused $691.9 million in damage in the two hardest hit counties of Ward and McHenry.
The U.S. Army Corps of Engineers in St. Paul said Thursday that it has released a draft environmental assessment of changes to the levees in Oslo, Minn. The city proposed changes to levees the corps built in the 1970s, including raising levees by 1.1 to 1.7 feet and realigning portions of the levee.
The corps says a stable ice cover has been established on the river at Bismarck, allowing officials to release more water through the dam upstream without leading to river rises in the area of the capital city.
The U.S. Army Corps of Engineers is seeking public input on its proposed operating plan for the Tolna Coulee Advance Measures control structure being built in Nelson County, N.D. The document will be used by the project’s non-federal sponsor, the North Dakota State Water Commission, to operate the structure.
The 99-page analysis said "climatic extremes" appear to be getting "bigger and more frequent," with the experts calling for updated flood probability models and procedures. It did not cite climate change as a factor, saying the issue was "beyond the scope of this report."
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