The document discusses the construction of Hoover Dam on the Colorado River between 1931 and 1936. Some key points: 1) Hoover Dam was built during the Great Depression to provide hydroelectric power, water storage, and flood control for the growing cities of Los Angeles, Phoenix, and Las Vegas. 2) Construction was a massive project that involved transporting equipment long distances with few roads, working in extreme heat and wind, and diverting the Colorado River, resulting in some worker casualties. 3) The dam cost $49 million to build and created Lake Mead, which holds 35 trillion gallons of water and provides billions of kilowatt-hours of electricity annually.

1. 8th Wonder
Hoover Dam
a.k.a
Boulder Dam
Naushad Meedin
section 1
Dr. Hans

3. Introduction

4. • 1931
• 1935
• 1936
• Concrete

6. • Las Vegas
• Lake Mead ( 35 trillion )
• 660 m at the base
• Height, 221m

7. • President Herbert Hoover
• Shape : arch-gravity dam
• In 1922, the Reclamation Service
• Architect: Six Companies, Inc.

8. Location
• Black Canyon • Arizona and
,Colorado River. Nevada.

9. What were the challenges ?

10. •Man power

11. • Transportation of Equipment

12. • No roads

13. Secretary Ray lyman

14. • Weather conditions
• HOT
• WINDY
• NO WATER
• DRY

15. • No water and ventilation

16. • Diversion of the Colorado River.

17. • Casualties

18. • No hard hats

19. • No steel toed boots

20. • No safety lines

21. • Ecosystem destroyed

22. • Invasive species
Quagga Mussel

23. Purpose of the Dam?

24. • To harness the Colorado River ( POWER )

26. • Water Storage

27. • Flood control

28. • Recreation

30. Cost ?
• Construction cost $49 million
($821 million with inflation)

31. Effect of Dam ?

32. • A boom in the tourism industry

33. • Environmental impact

34. • Annual generation 4.2 billion KWh

35. What did the engineers learn ?

36. • Prevent the ecological damage

37. • Increase the power production
• Change turbines
• 17 generators

39. • Increase the height of the dam

40. • Tighten safety measures

41. Conclusion

42. References
• http://www.youtube.com/watch?v=-xz7i3FD8Lw
• http://en.wikipedia.org/wiki/Hoover_Dam
• http://channel.nationalgeographic.com/channel/man-
made/videos/a-new-hoover-dam/

43. Thank you……….