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Archive: 2025
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  • Agencies extend Columbia River environmental review, delay public meetings

    Two federal agencies are extending the public scoping period for the Columbia River System Operations Supplemental Environmental Impact Statement (SEIS.) The U.S. Army Corps of Engineers (USACE) and the Bureau of Reclamation (Reclamation), or co-lead agencies, are also adjusting the timing of the public meetings to the week of April 7, 2025.

  • Below average runoff continues for upper Missouri River Basin in 2025

    The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. January runoff in the Missouri River Basin above Sioux City was 0.7 million acre-feet, 92% of average. Runoff was near or below average for most of the Missouri River Basin, and most of the upper basin had below-normal precipitation.

  • Below-average runoff and reservoir storage expected for the Missouri River Mainstem System in 2025

    For the 2024 calendar year, Missouri River basin runoff above Sioux City, Iowa totaled 23.3 million acre-feet, 91% of average. Dry conditions continue to affect the upper Missouri River Basin at the start of the 2025 calendar year, so the U.S. Army Corps of Engineers is forecasting below-average runoff into the mainstem reservoir system. For 2025, runoff in the Missouri River basin above Sioux City, Iowa is forecast to be 20.2 MAF, 79% of average.

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