1. Close-up of cement bucket used at Hoover Dam site
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2. Cement work -- Hoover Dam
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3. Construction of Hoover Dam
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4. Hoover Dam construction
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5. Crane transporting mixers in diversion tunnel at Hoover Dam site
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6. Hoover Dam site, looking downstream
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7. First concrete in Hoover Dam
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8. Hoover Dam, looking upstream
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9. Hoover Dam construction, looking upstream
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10. Hoover Dam construction, looking upstream
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11. Hoover Dam construction, looking upstream
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12. Hoover Dam construction, looking upstream
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13. Hoover Dam construction, looking upstream
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14. Hoover Dam under construction
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15. Hoover Dam under construction
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16. Construction of Hoover Dam intake towers
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17. Construction of Hoover Dam intake towers
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18. Arizona intake tower derrick.
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19. Union Pacific "Train of Tomorrow" -- Hoover Dam site
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20. Nevada spillway during construction of Hoover Dam
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21. Intake towers and spillway -- Hoover Dam construction
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22. Nevada intake towers under construction
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23. Hoover Dam intake towers during construction
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24. Nevada power house at Hoover Dam construction site
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25. Downsteam view of Hoover Dam, showing power house construction
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26. Intake towers being constructed for Hoover Dam
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27. Nevada intake towers under construction at Hoover Dam
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28. Construction on the four intake towers in Hoover Dam
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29. Construction on the Arizona intake towers
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30. Construction on the Nevada intake towers
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31. Top of Hoover Dam, during construction
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32. Nevada intake towers, Hoover Dam construction site
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33. Hoover Dam during construction
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34. View of bridge across Hoover Dam during construction
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35. Upstream face and intake towers of Hoover Dam during construction
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36. View of a spillway bridge during construction of Hoover Dam
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37. View of Nevada spillway during construction of Hoover Dam
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38. Building of intake tower, Hoover Dam site
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39. Looking downstream into the Nevada spillway.
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40. Third millionth cubic yard of concrete being lowered to Boulder Dam
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41. Arizona intake towers and spillway
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42. Hoover Dam power house under construction
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43. Looking upstream at Hoover Dam during construction
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44. Nevada intake towers, from the Arizona side.
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45. Top of Hoover Dam during construction
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46. Top of Hoover Dam during construction
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47. Construction of Hoover Dam intake towers
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48. Overhead view of Colorado River and outlet works at Hoover Dam
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49. Hoover Dam spillway
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50. Hoover Dam -- intake towers
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