How shallow can planned wreck 'artificial reefs' be?

[T.C.]

Thanks everybody. Now that you mention it, the Spiegel Grove used to be on its side, and even deep, a hurricane came through and stood it up. Huge, 510 feet long, and even at that depth, the hurricane stood it up. Now that is some power.

Richard.

This is a popular mythconception, but it's not correct. Hurricane Dennis didn't turn the Spiegel Grove with waves or surge or power. The sand was scoured out from under it, and caused it to roll upright. It was just the way that it was lying in the water that allowed eddies to form and scour under the wreck.