Bonus question: would this make a new continent?
Yes, but not for slavery this time, but for fresh water in the decades ahead of climate change. Those freshwater Great Lakes will be awfully attractive 100 years from now.
Then you’d need to dig really, really deep. Even deeper than where the Balrog lives.
Nope, the continental plate would not be separated by a river flowing over top.
Well, the Panama Canal is exactly that, built mostly that way.
Because it was built at the thinnest part of the content and used existing lakes?
Pretty sure Omaha would have loved an East\West canal across the continent.
And if abandoned halfway we could just turn it into a park.
The Marjorie Harris Carr Cross Florida Greenway follows the path of the abandoned Cross Florida Barge Canal.
https://www.floridastateparks.org/learn/history-cross-florida-greenway
“I get my kicks… on Canal 66.”
Literally described the Mississippi river.
If we could connect the Missouri to the Snake River we could do pretty much the same thing. There’s a seaport in Idaho already
Technically, it’s already done!