The hoover dam 3
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The hoover dam 3

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The hoover dam 3 The hoover dam 3 Presentation Transcript

  • The Hoover Dam
    1921-1935
  • Construction of the Hoover dam
    At the time the dam cost 49$ million to construct. The dam is 726 feet high, 660 ft thick, and is 1244 ft long. Hoover Dam required over 3,250,000 cubic yards of concrete plus another million for the power plant, intake towers and other support structures.
  • How the power plant makes electricity.
    Inside are 17 turbines--nine on the Arizona side and eight on the Nevada side--plus two small generators used to create power for the plant itself. The force of the water spins the turbines, which spin magnets past coils of copper wire. The act of spinning the magnets past the copper coils creates the electricity.
  • How the Hoover dam was constructed
    Over 3,250,000 cubic yards of concrete was used to build the dam. To simply pour the dam all at once would have caused it to eventually crack and collapse under the weight of its own curing. This problem was solved by pouring the concrete in interlocking stages, one block at a time. The cooling of the concrete was further helped by putting steel pipes into each poured block that circulated ice water through them until the cement was cure
  • Creation of lake Mead
    The dam is the separator between lake mead and the Colorado river. This lake was made when the dam was put in place and dammed up the Colorado river.
  • Completion of the dam
    With the dam's building complete, in 1935 Hoover Dam became the largest dam in the world.
  • How Does the Hoover Dam Make Electricity? | eHow.com http://www.ehow.com/how-does_5164758_hoover-dam-make-electricity.html#ixzz1EhZyjEyX
    job, it is still curing, getting harder and emitting heat.Read more: How Was the Hoover Dam Built? | eHow.com http://www.ehow.com/how-does_5245117_hoover-dam-built_.html#ixzz1EtDENQkz
    http://users.humboldt.edu/ogayle/HooverConcretePouring.jpg&imgrefurl=http://users.humboldt.edu/ogayle/hist383/Depression-WorldWarII.html&usg=__4iT1DmVJZ3cmZCuO1i0LLP1gUh4=&h=600&w=750&sz=134&hl=en&start=0&zoom=1&tbnid=aYBL75joX5XkEM:&tbnh=129&tbnw=162&ei=FXlmTZHmLoa8lQeRo6D_AQ&prev=/images%3Fq%3Dpouring%2Bthe