gonna need an epic bomb to get through 660ft
Imagine a four-foot-wide sidewalk wrapped completely around the Earth at the equator. That’s a lot of concrete! That’s how much concrete it took to build the Hoover Dam. It’s amazing when you think about it. The dam is 726 feet tall and 1,244 feet long. That’s almost a quarter of a mile.

At its base, the dam is a whopping 660 feet thick. That’s longer than two football fields stretched end-to-end! At its top, Hoover Dam is 45 feet thick. That may seem thin compared to its massive base, but it’s still nearly as wide as a four-lane highway.