Quote:
Originally Posted by haimon
Crazy, and maybe laughable, but I figured since i've thought about it from time to time, perhaps someone may have actually been insane enough to seriously consider it in the past..... That is, our rivers would be aesthetically much more appealing if it weren't for the heavy mud that permeates the bottoms of the rivers. So, had there been any precedent of drudging the mud out of rivers elsewhere. Would there be a detrimental affect to the river environment? Anyone?
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Huh?
Rivers are muddy... that's what they do -- move sediment, i.e., mud.
Yes. Not only would you massively increase turbidity in already turbid waters (rivers are naturally turbid), but you would also dredge up tons of contaminants and put them into back into the water which they naturally settle out of. So, it would not be a good idea... and unless you completely paved over the entire watersheds of the Allegheny and Monongahela, Yough, etc, and stopped all precipitation in the watershed, Pittsburgh's rivers would fill right back up with mud, even if you could somehow do what you ask about.
Little experiment for you... turn on your hose and let run down the driveway... a mini river forms, right? Check out what's included in that mini river... pieces of dirt and debris. Big rivers do the exact same thing at munch higher volumes of water and debris obviously.