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    Mississippi River ice surveys are a sign of spring [Image 1 of 4]

    Mississippi River ice surveys are a sign of spring

    RED WING, MN, UNITED STATES

    02.27.2014

    Photo by Patrick Moes 

    U.S. Army Corps of Engineers, St. Paul District

    Bill Chelmowski, St. Paul District small boat operation and ice survey technician, prepares to drill a hole in the Mississippi River, near Lake City, Minn., Feb. 27, to measure the ice thickness within Lake Pepin. The Corps of Engineers measures the ice thickness every spring and the navigation industry uses the information to determine when to break through the ice and begin the shipping season. Lake Pepin ice is traditionally the last hurdle for the navigation industry to deal with before reaching St. Paul, because the ice is usually a lot thicker in the lake due to the slow moving current.

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    IMAGE INFO

    Date Taken: 02.27.2014
    Date Posted: 02.27.2014 16:08
    Photo ID: 1175957
    VIRIN: 140227-A-LI073-001
    Resolution: 2848x4288
    Size: 6.41 MB
    Location: RED WING, MN, US

    Web Views: 20
    Downloads: 4

    PUBLIC DOMAIN