Upgrade your account to a Community Supporter account and remove most of the site ads.

Reply to thread

Message: <blockquote data-quote="Davelozzi" data-source="post: 915779" data-attributes="member: 771">Very cool idea!Yeah, I'd say damming the Niagara should do the trick.  Raising the surface of Lake Michigan 19 feet would indeed create a Venice-like situation in downtown Chicago.  (Check this out: <a href="http://www.topozone.com/map.asp?lat=41.8932666847437&lon=-87.64451626201432&s=25&size=l&symshow=n" target="_blank">http://www.topozone.com/map.asp?lat=41.8932666847437&lon=-87.64451626201432&s=25&size=l&symshow=n</a>) You can see the 595' elevation line snaking north-south a little bit west of I-90/94, so you know that the water would be 5' deep there.  Progressing east through downtown it would get progressively deeper, of course, up to 19' at the lakefront.Similar situations would probably occur in Detriot, Cleveland, Milwaukee, and Buffalo.  As far how the shapes of the lakes would change, you could certainly figure it out with a nice topomap but it would take a while.  Looking quickly at a slight relief map in my road atlas, things would change a lot in southern Michigan and Wisconsin and across northern Illinois, Indiana, and Ohio.  Northern Michigan and Wisconsin are slightly more elevated so the change wouldn't be as dramatic.  The area along the southern shore of Lake Erie Cleveland to Buffalo looks pretty hilly so it wouldn't be too bad there, althought it would probably become fairly irregular with lots of little inlets between the high points.I'm not sure exactly what the elevation changes are like in southern Ontario, but it would have to be hit pretty hard.  Since the land is higher on the U.S. side, much of that water from the blocked Niagara would have to go somewhere, probably flowing north and creating another big falls somewhere else.  Where exactly this occured would greatly affect the fate of Toronto.</blockquote>

Verification