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  • Corps of Engineers releases 2023 Lock and Dam 2 navigation stats

    The U.S. Army Corps of Engineers, St. Paul District, released its 2023 navigation statistics for the Upper Mississippi River today.

  • Upper Mississippi River navigation season closes for the year

    The U.S. Army Corps of Engineers, St. Paul District, saw the last tow of the 2023 navigation season as the Motor Vessel Thomas Erickson, departed Lock and Dam 10, near Guttenberg, Iowa, Dec. 3, with 15 barges.

  • Corps awards contract for bank stabilization near Fountain City, Wisconsin

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, awarded a $347,400 contract to LS Marine, Inc., out of Inver Grove Heights, Minnesota, Nov. 16, for bank stabilization at Wilds Bend, near Fountain City, Wisconsin, in Pool 5 of the Mississippi River. Wilds Bend is a temporary dredged material, or river sand, storage site.

  • Corps awards contract for bank stabilization near Diamond Bluff, Wisconsin

    ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, awarded a $374,400 contract to LS Marine, Inc., out of Inver Grove Heights, Minnesota, Nov. 16, for bank stabilization at Corps Island, near Diamond Bluff, Wisconsin in Pool 3 of the Mississippi River. Corps Island is a temporary dredged material, or river sand, storage site.

  • Corps of Engineers to close 4 locks and dams for maintenance

    The U.S. Army Corps of Engineers, St. Paul District, is closing four of its locks and dams in in early December for maintenance. The closures will officially end the 2023 navigation season on the Mississippi River between Minneapolis at Guttenberg, Iowa.

  • A Method for Evaluating Automatic Identification System (AIS) Coverage on Select Inland Waterways in 2020 and 2021: Upper Mississippi River, Illinois River, and Ohio River

    Abstract: The Automatic Identification System (AIS) shares vessel position information for navigational safety purposes. AIS broadcasts are received by other ships and terrestrial stations; however, in some areas there is no, or low, terrestrial station coverage to receive broadcasts. The US Army Corps of Engineers (USACE) developed an Online Travel Time Atlas (OTTA) to process AIS data and derive a transit count. This study examined OTTA output from 2020 and 2021 to identify areas of high or low AIS coverage along the Upper Mississippi, Illinois, and Ohio Rivers. Segments with a yearly average of two or more transit per day were classified as high coverage, those with less than a yearly average of two transits per day were classified as low coverage. Rivers were segmented using the USACE National Channel Framework reach boundaries. Results based on calculated vessel transits were as follows: Upper Mississippi River: 837.4 miles (98%) had high coverage, with 17.4 miles (2%) of low coverage; Illinois River: 190.5 miles (59%) had high AIS coverage, and 133 miles (41%) had low AIS coverage; Ohio River: 644 miles (66%) had high coverage, and 337 miles (34%) had low coverage. AIS coverage could be improved by raising antennae heights, installing repeater equipment, or adding towers.

  • MKARNS Nav Notice No. SWL 23-69 UPDATE 2: White River Entrance Channel

    All traffic on the locking queue at Montgomery Point Lock & Dam (NM 0.5) has been cleared and normal locking procedures have begun. However, dredging operations downstream of the Montgomery Point Lock & Dam (NM 0.5) are ongoing.

  • MKARNS Nav Notice No. SWL 23-68 UPDATE: White River Entrance Channel

    Dredging operations are progressing downstream of Montgomery Point Lock & Dam (NM 0.5). The Dredge Sandpiper is currently dredging in the downstream approach to the lock with plans to continue in this area until the morning of Thursday, October 26, 2023.

  • MKARNS Nav Notice No. SWL 23-64 UPDATE: WREC Channel Restriction and Delays

    Crews arrived in the area on Sunday, October 15, 2023, to begin clamming in the downstream approach at Montgomery Point Lock & Dam (NM 0.5). A Notice to Proceed has been given to the Contract Dredge Sandpiper who is expected to arrive in the area and begin dredging on or before Saturday, October 21, 2023. The Dredge Sandpiper is expected to complete dredging operations below Montgomery Point Lock & Dam on or around Saturday, October 28, 2023.

  • Corps of Engineers is lowering the Mississippi River level in Minneapolis for maintenance at Lock and Dam 1

    The U.S. Army Corps of Engineers, St. Paul District, and the Minnesota Department of Natural Resources, are lowering the Mississippi River water elevations between Lower St. Anthony Falls and Lock and Dam 1, both in Minneapolis, starting Oct. 13.