But imagine trying to drain the Hoover Dam to repair cracks at the bottom — it can’t be done. A bypass bridge (background) crosses Black Canyon just downstream, and four intake towers (foreground) divert reservoir water to a hydroelectric plant located in the base of the dam. If the whole dam collapsed at once due to say, a big earthquake, it would form an enormous wave in the narrow canyon at first. ... Constructing the Hoover Dam - Duration: 2:55. With a small dam the water can sometimes be drained, allowing repairs to be done safely. Suppose you stroll out on the Hoover Dam and notice — goodness, is that a crack?
Science Channel 377,672 views. Hoover Dam Collapse from San Andreas bob larrance. Hoover Dam on the Colorado River, Arizona-Nevada, U.S., seen from above on the upstream (reservoir) side. This has been minutely examined.
May 21, 2015 - A Crack In Hoover Dam Google Earth: 666 and 322 - YouTube Repairing a dam wall is tricky. Loading... Unsubscribe from bob larrance? The lake behind holds 9 cubic miles (imagine) of water.