Quote:
Originally Posted by SebC
Wouldn't being flat make things worse? If you divert water where everything's flat, it goes everywhere. In terrain, it would stay more confined. Like isn't it much easier to build a reservoir in a valley? Am I wrong?
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Well the idea is to build a big ditch around Calgary, then block the Bow so it flows into the ditch and meets back up with the Bow downstream of Calgary. But with our funky terrain here... water can't flow uphill. So all you'll do is build a reservoir at the point you were trying to block the river, instead of that water flowing into the ditch you've spent billions digging out. Hence the tunnel, which is indeed tens of billions.