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  • Corps of Engineers seeks public comments on its Upper St. Anthony Falls Lock and Dam Disposition Study

    The U.S. Army Corps of Engineers, St. Paul District, is seeking public input on its recently completed draft disposition study for the Upper St. Anthony Falls Lock and Dam, located in Minneapolis.

  • May runoff average; Missouri River upper basin runoff forecast below normal

    The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. May runoff in the Missouri River Basin above Sioux City was 3.4 million acre-feet, 100% of average.

  • Cumberland River intertwined with story of U.S. Army Corps of Engineers

    NASHVILLE, Tenn. (June 3, 2025) – The steady flow of the Cumberland River is intertwined with the story of the U.S. Army Corps of Engineers. As the Army and USACE mark a quarter-millennium of service this month, it’s fitting to highlight the Nashville District’s enduring legacy in shaping the landscape of the region, reducing flood risk, powering communities, establishing navigation, promoting safe recreation, and stewarding natural resources.

  • Cumberland River intertwined with story of U.S. Army Corps of Engineers

    NASHVILLE, Tenn. (June 3, 2025) – The steady flow of the Cumberland River is intertwined with the story of the U.S. Army Corps of Engineers. As the Army and USACE mark a quarter-millennium of service this month, it’s fitting to highlight the Nashville District’s enduring legacy in shaping the landscape of the region, reducing flood risk, powering communities, establishing navigation, promoting safe recreation, and stewarding natural resources.

  • Little Goose Dam navigation lock temporarily closed

    STARBUCK, Wash. – The U.S. Army Corps of Engineers, Walla Walla District, has temporarily closed the navigation lock at Little Goose Lock and Dam following an incident on the evening of June 2, involving a non-government vehicle on the facility’s bascule bridge.

  • MKARNS Nav Notice No. SWL 25-34 Lock 1 Navigation Pass Open (Through Lock)

    The tailwater elevation at Norrell Lock (No. 1) NM 10.3 has exceeded 143.0 feet. All vessels will be directed to transit through the lock chamber with pinned open gates while the tailwater elevation remains above 143.0 feet. When the tailwater elevation drops below 143.0 feet, vessels will use the lock. Prior to arrival, vessels shall contact lock personnel at (501) 324-7341 or on channel 16 to receive the latest information regarding any changes to the special navigation procedures at Lock 1.

  • MKARNS Nav Notice No. SWL 25-33 Lock 1 Tow Haulage Out of Service

    The tow haulage equipment at Norrell Lock (No. 1) NM 10.3 is currently out of service. Double cut tows will have to be locked the conventional way (without the use of tow haulage). A follow up notice will be distributed when the tow haulage equipment is back in service.

  • MKARNS Nav Notice No. SWL 25-32 Lock 1 Operational

    Due to tailwater elevations falling below 143.0 feet at Norrell Lock (No. 1) NM 10.3, the lock chamber is now operational for navigation. All vessels are required to pass through lock.

  • MKARNS Nav Notice No. SWL 25-31 Lock 5 DS Appr - Sailing Instruction

    Due to shoaling, mariners are advised that until further notice, both upbound and downbound tows should favor the long wall in the downstream approach to Colonel Charles D. Maynard Lock (No. 5) NM 86.3.

  • Mississippi River Visitor Center Operating Days Change

    Starting May 20, the Mississippi River Visitor Center operated by the U.S. Army Corps of Engineers, Rock Island District, at Locks and Dam 15 on the Rock Island Arsenal will be open to the public from 9 a.m. to 4 p.m., Tuesday-Friday each week.