NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Illinois drainage
From: Bill B
Date: 2005 Nov 22, 03:03 -0500
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?Bill
