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    Re: Illinois drainage
    From: Bill B
    Date: 2005 Nov 22, 03:03 -0500

    Frank wrote:
    > The Chicago River famously was  reversed in 1900.
    The fact is getting off the deck and onto older fixed finger piers is quite
    a task as I approach 60.  A 3' to 4' climb (or leap returning). Some use
    ladders when available. Some blame the Chicago drinking water and river
    reversal for the drop of lakes Huron and Michigan.  If I recall, there is
    also a sizeable water withdrawal far north.
    As I understand it, Superior's level is above Huron/Michigan.  Hence the St.
    Mary's River rapids and locks.  Connected by a strait, Michigan and Huron
    are at the same level for all practical purposes.  Bringing us to Huron
    draining into Erie.
    Fact or not, I do not know, so request hard facts.  A Detroit native I sail
    with asserts the Army Corp of Engineers dredged a 30' channel for commercial
    shipping purposes between Huron and Erie.  He also claims that the channel
    has eroded to 60'.
    Bottom line, bigger "pipe" for Huron to drain into Erie.
    Any opinions/scientific evidence on what is fact or fiction in the above?
    Or how things will change when that nice little fault running through
    Indiana lets go big time? 

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