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  • USACE signs agreement with Arkansas Waterways Commission to update tow haulage at Murray Lock and Dam

    The U.S. Army Corps of Engineers, Little Rock District entered into a cost-share Memorandum of Agreement with the Arkansas Waterways Commission to update tow haulage equipment at Murray Lock and Dam on June 9 in Little Rock, Arkansas.

  • Waiting in the wings: A history of Little Goose Lock and Dam

    By 1962, Ice Harbor Lock and Dam had been built and construction of the second lower Snake River dam, Lower Monumental, was being passed to the US Army Corps of Engineers Seattle District. The third dam in the queue was right on the heels of Lower Monumental, but construction could not begin until the details of its downstream neighbor were determined.

  • Rapid mountain snowmelt; above-average May runoff

    Warm temperatures in the mountainous region of the upper Missouri River Basin has led to a quick melt of the mountain snowpack. The rapid melting combined with precipitation in the western half of the Basin resulted in above-average inflow into the reservoir system. May runoff for the Basin above Sioux City, IA was 4.9 million acre-feet, 144% of average.

  • NAVIGATION NOTICE Number SWL 23-26 McClellan-Kerr Arkansas River Navigation System

    The Baring Cross Railroad Bridge will be closed to navigation from 8 a.m. to 4 p.m. on June 11 and June 13. The closure is to facilitate required maintenance and repairs to the bridge.

  • Untapped Possibilities: Could navigation on the “Big Muddy” provide clean solutions for a more sustainable future?

    The words “green” and “clean” are likely not the first that come to mind when thinking of ground transportation in the U.S. Trucks on the interstate and railroads are probably what come to mind first, but the greenest and cleanest form of ground transportation is one that often gets overlooked: waterway navigation. As the oldest form of transportation, navigation on U.S. waterways is not a new concept. At face value, navigation of the nation’s waterways and environmental sustainability may not seem to be related. Except they are, as navigation has very little negative impact to our environment.

  • NAVIGATION NOTICE Number SWL 23-25 McClellan-Kerr Arkansas River Navigation System

    Arthur V. Ormond Lock (No. 9) NM 176.9 has been reopened to traffic.

  • Automatic Identification System (AIS) Data Case Study: Identifying Unofficial Mooring Areas along the Upper Mississippi River

    Purpose: This Dredging Operations and Technical Support (DOTS) program technical note presents the results of a study undertaken at the request of staff from the US Army Corps of Engineers (USACE) Rock Island District (MVR) as part of a larger effort examining the potential creation of seven new permanent mooring cells along the Upper Mississippi River in proximity to lock and dam (LD) locations selected by MVR. MVR staff were interested in evaluating vessel traffic and identifying unofficial mooring areas (i.e., waiting areas) in the vicinity of LD7, LD10, LD11, LD14, LD15, LD20, and LD22; they were also interested in travel times from those unofficial mooring areas to the destination lock. The search distance for unofficial mooring areas was limited to 20 miles from the lock, or the distance to the next closest lock if less than 20 miles, in the appropriate direction (i.e., upstream or downstream), as specified by MVR staff.

  • Chickamauga Lock Replacement Project reaches monolithic milestone

    CHATTANOOGA, Tenn. (May 23, 2023) – Construction of a new navigation lock on the Tennessee River reached a monolithic milestone yesterday as crews and officials held a topping-off ceremony to mark the completion of the first concrete monolith.

  • NAVIGATION NOTICE Number SWL 23-23 McClellan-Kerr Arkansas River Navigation System

    Mariners should expect to experience intermittent delays at James W. Trimble Lock (No. 13) NM 292.8 between May 31 and June 21.

  • Corps of Engineers to reopen Lock and Dam 1 visitor center

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, is reopening its Lock and Dam 1 visitor center May 26.