US Army Corps of Engineers
Northwestern Division Website

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  • March

    Corps of Engineers partners with states in fight against invasive aquatic plants

    Butomus umbellatus may conjure up images of a hippopotamus belly, but in reality, it is flowering rush, an aquatic invasive plant species that poses a grave threat to the Columbia River Basin’s aquatic ecosystems.
  • February

    Containing the Flood of 1996

    One of the biggest floods the Portland District faced in the late 20th century occurred in February 1996 and caused millions of dollars in damage to the region. The District played a crucial role in combating this flood 's impact through a variety of short-term and long-term activities.