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1. Construction of Hoover Dam
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2. Construction of Hoover Dam
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3. Hoover Dam construction
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4. Hoover Dam construction
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5. Construction of Hoover Dam
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6. Construction of Hoover Dam
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7. Truck on road to Hoover Dam site
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8. Construction crews in Boulder Canyon.
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9. Construction site at Hoover Dam
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10. Government cableway and hoisting house
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11. Hoover Dam cooling tower and refrigeration plant during construction
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12. Nevada spillway during construction of Hoover Dam
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13. Hoover Dam under construction
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14. Hoover Dam during construction
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15. Himix Concrete Plant at Hoover Dam site
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16. Nevada power house at Hoover Dam construction site
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17. Downsteam view of Hoover Dam, showing power house construction
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18. View of power houses being constructed at the Hoover Dam site
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19. Looking downstream on the Hoover Dam construction site
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20. View of the power house and valve houses from top of Hoover Dam
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21. View of Arizona spillway during construction
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22. View of Nevada spillway during construction of Hoover Dam
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23. Hoover Dam during construction, from the Nevada side
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24. Final pour in the slot, Hoover Dam
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25. Switchyard control circuit tunnel under construction -- Hoover Dam site
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26. Switchyard control house, yard and present substation -- Hoover Dam site
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27. View from the top of Hoover Dam during construction
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28. Downstream view of Hoover Dam construction
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29. Hoover Dam switchyard during construction
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30. Top of Hoover Dam during construction
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31. Hoover Dam during construction
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32. View of Hoover Dam construction from the top of the dam
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33. Hoover Dam during construction
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34. Power house during construction -- Hoover Dam
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35. Hoover Dam during construction
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36. Workers in transport buses
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37. Power shovel and trucks opening up an adit
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38. Hoover Dam construction
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39. Construction of Hoover Dam diversion tunnel
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40. Construction of Hoover Dam
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41. Construction workers inside Hoover Dam diversion tunnel
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42. Portals, Hoover Dam construction
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43. Transport trucks at Hoover Dam site
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44. Construction -- near Hoover Dam
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45. Preliminary construction at Hoover Dam site
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46. Hoover Dam construction
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47. Hoover Dam construction
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48. Hoover Dam construction -- various phases
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49. Construction of Hoover Dam
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50. Upper portals -- Hoover Dam site
 

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