That The Actual Capacity Of A Channel Through
Alluvium Depends Upon Its Service During Floods Has Been Often Shown,
But This Capacity Does Not Include Anomalous, But Recurrent, Floods.
It is hardly worth while to consider the projects for relieving the
Mississippi River floods by creating new outlets, since these
sensational propositions have commended themselves only to unthinking
minds, and have no support among engineers.
Were the river bed cast-
iron, a resort to openings for surplus waters might be a necessity; but
as the bottom is yielding, and the best form of outlet is a single deep
channel, as realizing the least ratio of perimeter to area of cross
section, there could not well be a more unphilosophical method of
treatment than the multiplication of avenues of escape.
In the foregoing statement the attempt has been made to condense in as
limited a space as the importance of the subject would permit, the
general elements of the problem, and the general features of the
proposed method of improvement which has been adopted by the Mississippi
River Commission.
The writer cannot help feeling that it is somewhat presumptuous on his
part to attempt to present the facts relating to an enterprise which
calls for the highest scientific skill; but it is a matter which
interests every citizen of the United States, and is one of the methods
of reconstruction which ought to be approved. It is a war claim which
implies no private gain, and no compensation except for one of the cases
of destruction incident to war, which may well be repaired by the people
of the whole country.
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