The funding for Hoover Dam didn't go throgh Congress and get signed into appropriation bills until Hoover was president. There are all sorts of studies on how to spend the peons' money, but until it's actually "approriated," the wastful project is undertaken yet.
"I suspect other inaccuracies within your post about FDR/Hoover and public works projects."
Why insinuate if you can find some facts. Go read FDR's campaign platform in 1932, you will find advocacies for smaller government and undoing Hoover's wasteful government spendings; of course, after being elected, he did the exact opposite. Keynsian economics was just a fig leaf to brainwash the masses, so that the government bailout of their bank friends and handing out jobs to the cronies could be justified . . . heck even praised. Of course, all that came at the expense of the peons, and a prolonged recession.