1. Construction on the four intake towers in Hoover Dam
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2. Top of Hoover Dam, during construction
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3. Hoover Dam -- intake towers
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4. No. 5 intake tower finished to elevation 1232, showing curtain wall
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5. Construction of gravel plant near Hoover Dam site
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6. Building of intake tower, Hoover Dam site
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7. Construction of Hoover Dam intake towers
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8. Intake towers and spillway -- Hoover Dam construction
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9. Hoover Dam intake towers during construction
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10. Nevada power house at Hoover Dam construction site
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11. Downsteam view of Hoover Dam, showing power house construction
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12. Intake towers being constructed for Hoover Dam
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13. Nevada intake towers, Hoover Dam construction site
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14. View of bridge across Hoover Dam during construction
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15. Looking upstream at Hoover Dam during construction
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16. Top of Hoover Dam during construction
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17. View of the concrete lining in the diversion tunnels
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18. Upstream face of Hoover Dam, and the Nevada intake towers
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19. Construction of Hoover Dam intake towers
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20. Nevada intake towers under construction
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21. Upstream face of Hoover Dam, and the Arizona intake towers
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22. Construction of Hoover Dam
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23. Crane transporting mixers in diversion tunnel at Hoover Dam site
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24. Hoover Dam site, looking downstream
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25. First concrete in Hoover Dam
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26. Hoover Dam, looking upstream
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27. Hoover Dam construction, looking upstream
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28. Hoover Dam construction, looking upstream
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29. Hoover Dam construction, looking upstream
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30. Hoover Dam construction, looking upstream
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31. Hoover Dam construction, looking upstream
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32. Hoover Dam under construction
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33. Hoover Dam under construction
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34. Arizona intake tower derrick.
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35. Nevada spillway during construction of Hoover Dam
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36. Nevada intake towers under construction at Hoover Dam
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37. Construction on the Arizona intake towers
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38. Construction on the Nevada intake towers
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39. Hoover Dam during construction
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40. Upstream face and intake towers of Hoover Dam during construction
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41. View of a spillway bridge during construction of Hoover Dam
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42. View of Nevada spillway during construction of Hoover Dam
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43. Hoover Dam power house under 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. Hoover Dam spillway
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47. Power house -- Hoover Dam
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48. Hoover Dam construction
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49. Hoover Dam construction -- upstream face
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50. Hoover Dam construction
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