Search for exactly "Construction workers", all of "Hoover Dam ariz And Nev -- Design And Construction"

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1. Construction workers using a drilling jumbo inside a diversion tunnel
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2. Construction workers on cliffs in Boulder Canyon.
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3. Construction workers inside Hoover Dam diversion tunnel
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4. Construction workers at Hoover Dam
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5. Construction workers in diversion tunnel, Hoover Dam site
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6. Hoover Dam construction workers
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7. Construction workers at Hoover Dam site.
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8. Construction workers at bottom of Boulder Canyon
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9. Construction workers at Hoover Dam.
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10. Construction workers on the drum gates in the Arizona spillway
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11. Crane transporting mixers in diversion tunnel at Hoover Dam site
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12. Hoover Dam site, looking downstream
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13. First concrete in Hoover Dam
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14. Close-up of workers using a drilling jumbo inside a diversion tunnel
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15. Construction scene at Hoover Dam site
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16. Unloading huge pipes -- Hoover Dam site
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17. Construction on the no. 4 penstock raise
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18. Construction on the Nevada and Arizona power houses in the downstream cofferdam below Hoover Dam
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19. Close-up of the Nevada powerhouse, showing the draft tubes.
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20. Construction in the no. 4 penstock raise
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21. Hoover Dam construction, looking down on top
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22. Intake towers during construction of Hoover Dam
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23. Steel rails on the roof of the Nevada valve house awaiting concrete pouring
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24. Construction on the Nevada spillway
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25. Hoover Dam workers on canyon floor
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26. Inside a diversion tunnel -- Hoover Dam construction
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27. Workers in diversion tunnels -- Hoover Dam site
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28. Workers on the Colorado River
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29. Commemoration of the pouring of the second millionth cubic yard of concrete in Hoover Dam
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30. Construction on crest of Hoover Dam
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31. Hoover Dam construction
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32. Hoover Dam construcion -- blasting
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33. Pouring concrete -- Hoover Dam
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34. Six Companies' power shovel dumping dirt in dump truck in diversion tunnel at Hoover Dam...
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35. Hoover Dam, looking downstream
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36. Concrete form construction work
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37. Workers and drilling jumbo inside diversion tunnel no. 4
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38. Construction worker in bulldozer in front of diversion tunnel portal
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39. Worker operating heavy equipment at Hoover Dam site.
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40. Constructing highway to dam site
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41. Construction at Hoover Dam
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42. Nevada power house at Hoover Dam construction site
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43. Downsteam view of Hoover Dam, showing power house construction
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44. Power house under construction at Hoover Dam site
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45. Top of Hoover Dam, during construction
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46. View of bridge across Hoover Dam during construction
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47. Building of intake tower, Hoover Dam site
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48. Construction at Hoover Dam, inside a tunnel
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49. View of no. 1 plug showing the arch and raise
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50. Nevada valve house roof, looking upstream.
 

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