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Archive: September, 2023
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  • Pacific lamprey returns eclipsing other years

    *Our initial news release referenced adult Pacific Lamprey returns were 170 percent higher than the 10-year-average and then referenced the 10-year-average being 41,414 which is actually closer to 154 percent. The 170 percent number came from using the 2022 Annual Fish Passage Report, which references completed counts over ten years from 2013-2022. This average is 37,425. This has been updated online and addressed in other forums. Please excuse this mistake. Adult returns are indeed 252 percent higher than the four-year-average. Also, note these counts are daytime counts and lamprey passage numbers are still probably closer to 165,314 total fish. Pacific lamprey, an ancient, eel-like fish species, are seeing returns 170 percent higher than the 10-year average (2013-2022) at Bonneville Lock and Dam this year. Lamprey numbers are also 252 percent higher than the four-year average, according to biologists responsible for reporting the number of fish counted as they migrate upstream past mainstem Columbia and Snake River dams.

  • Now Available: Draft Missouri River Operating Plan; Possible Fort Peck test flow; Fall public meeting schedule

    Ahead of fall public meetings, the Draft Missouri River Mainstem Reservoir System Annual Operating Plan for the 2023-2024 runoff season is now available for public comment. The public comment period on the draft plan will close Nov. 30. 

  • Federal water managers announce public information sessions about post-September 2024 Columbia River Treaty operations

    How the United States uses reservoir space in Canada changes on September 16, 2024, from the high degree of structure and control of flows coming across the border from Canada experienced over the last 60 years under the Columbia River Treaty, to an operation that increases the uncertainty of those flows. The U.S. Army Corps of Engineers (USACE) and Bureau of Reclamation (Reclamation) will hold four virtual public information sessions in September and October to begin informing the public about the potential changes.

  • USACE seeks public comments on DAPL Draft Environmental Impact Statement

    The U.S. Army Corps of Engineers –Omaha District is seeking public comments on the recently published Draft Environmental Impact Statement for Dakota Access, LLC’s request for an easement under the Mineral Leasing Act for the Dakota Access Pipeline. The Dakota Access Pipeline crosses the Corps-managed federal land at Lake Oahe, North Dakota. The DEIS is not a decision and does not authorize the easement. This milestone is the second step in the National Environmental Policy Act environmental review process and will be followed by a Final Environmental Impact Statement. The Final Environmental Impact Statement will include public comments that were received during the Draft Environmental Impact Statement public review period.

  • Gavins Point winter release slightly above minimum rate

    Rainfall in the Missouri River Basin above Sioux City, Iowa, was above normal for the month of August, resulting in above average runoff. However, due to drier-than-normal conditions in previous years, the total storage in the Missouri River mainstem reservoir system remains lower than normal. Based on the Sept. 1 system storage, winter releases from Gavins Point Dam will be 13,000 cubic feet per second, per the criteria in the Master Manual. This release rate is slightly above the minimum rate of 12,000 cfs.