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The Hoover Dam
A Dam Is Needed.
It flows south west for about 1,400 miles.
The Dam would be 726 feet high its base would be 660 feet thick.
Preparing to build.
The Dam would be 726 feet high its base would be 660 feet thick.
CONSTRUTION BEGINS!
workers dug 2 tunnels on each side of the river.
HELPPING HANDS
In all, more than 21,000 people from across the country worked on the ''Hoover Dam''.
WHAT IS THE HOOVER DAM?
It generates hydroelectric power for 1.3 million people each year.