An internal National Marine Fisheries Service document lists the concerns
the agencys Northwest Science Center has about the impact on salmon of
a proposal to deepen the Columbia River shipping channel by 3 feet.
In the Dec. 2 letter that addressed the Science Centers concerns about
the projects impacts on the Columbia River estuary, John Stein of the
Science Center said that even though deepening the channel is a difficult
project to evaluate, it still is one more action that degrades the
