An Army Corps of Engineers draft report out for public comment assesses
the costs and impacts of deepening nearly 115 miles of Columbia and Willamette
River navigable waters by three feet to accomodate a growing fleet of larger
ships visiting seven ports along the two rivers.
The dredging and other activities would cost over $175 million and produce
more than 19 million cubic yards (mcy) of sand, silt and rock for disposal,
but, according to the report, it would not adversely affect …