If you go on a tour of the Nevada test site, they take you to a viewing platform at the edge of the Sedan Crater, where the test of this canal-building idea too

If you go on a tour of the Nevada test site, they take you to a viewing platform at the edge of the Sedan Crater, where the test of this canal-building idea took place. If you search online, you can probably find some video of the test. That was as far as it got.