Search for exactly "Diversion tunnels", all of "Construction Equipment"

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1. Construction near the upper portals of diversion tunnels no. 1 and no. 2
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2. Dump trucks on temporary dike in front of portals of diversion tunnels no. 3 and...
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3. Construction of diversion tunnels -- Hoover Dam site
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4. Looking up Hoover Dam during construction of the diversion tunnels
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5. Side-wall jumbo inside diversion tunnel
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6. Construction of steel forms for the lining of the diversion tunnels
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7. Detail of side-wall jumbo inside diversion tunnel
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8. Closeup of Upper Portal of Diversion Tunnels No. 3 and 4, during preparations for blast.
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9. Diversion tunnel at Hoover Dam
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10. View of the concrete lining in the diversion tunnels
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11. Hoover Dam construcion -- blasting
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12. Workers in diversion tunnels -- Hoover Dam site
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13. Close-up of trimming jumbo
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14. Putting in the ceiling on the Nevada side of the no. 2 diversion tunnel
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15. Sidewall concreting in diversion tunnel no. 4 showing workers
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16. Six Companies' power shovel dumping dirt in dump truck in diversion tunnel at Hoover Dam...
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17. Crane transporting mixers in diversion tunnel at Hoover Dam site
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18. Gas-air shovel caught in the flooded Colorado River
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19. Trash rack structure being installed in front of diversion tunnel no. 2
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20. Looking out of the interior of diversion tunnel no. 2, with gas-air shovel inside the...
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21. Workers and drilling jumbo inside diversion tunnel no. 4
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22. Close-up of workers using a drilling jumbo inside a diversion tunnel
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23. Construction worker in bulldozer in front of diversion tunnel portal
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24. Construction workers using a drilling jumbo inside a diversion tunnel
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25. Invert concrete pouring forms inside diversion tunnel
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26. Gantry crane inside diversion tunnel no. 3
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27. Invert forms inside diversion tunnel no. 3
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28. Concrete lining inside diversion tunnel no. 2
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29. Concrete side wall lining in diversion tunnel no. 3
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30. Detail of a sidewall jumbo inside diversion tunnel no. 3
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31. Interior of diversion tunnel during Hoover Dam construction
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32. Excavation for downstream plug, Diversion Tunnel No. 2.
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33. Excavation for downstream plug, Diversion Tunnel No. 3.
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34. View of no. 4 plug, Hoover Dam site
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35. Interior of Hoover Dam diversion tunnel during construction
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36. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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37. Hoover Dam construction site, looking upstream from the lower portals road
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38. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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39. Digging diversion tunnels at Hoover Dam.
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40. Hoover Dam from the downstream side
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41. Construction of Hoover Dam
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42. Blasting at Hoover Dam site
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43. Inside a diversion tunnel -- Hoover Dam construction
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44. Construction in diversion tunnel -- Hoover Dam
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45. Construction of diversion tunnel at Hoover Dam
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46. Construction -- Hoover Dam -- Diversion tunnel
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47. Construction of Hoover Dam diversion tunnel
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48. Construction workers inside Hoover Dam diversion tunnel
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49. Hoover Dam construction -- various phases
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50. Hoover Dam construction
 

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