Search for exactly "Diversion tunnels"

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51. Construction workers using a drilling jumbo inside a diversion tunnel
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52. Invert concrete pouring forms inside diversion tunnel
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53. Gantry crane inside diversion tunnel no. 3
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54. Invert forms inside diversion tunnel no. 3
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55. Concrete lining inside diversion tunnel no. 3
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56. Concrete lining inside diversion tunnel no. 2
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57. Concrete side wall lining in diversion tunnel no. 3
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58. Detail of a sidewall jumbo inside diversion tunnel no. 3
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59. Interior of diversion tunnel during Hoover Dam construction
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60. Forms for transition at the downstream plug of Diversion Tunnel No. 2.
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61. Excavation for downstream plug, Diversion Tunnel No. 2.
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62. Excavation for downstream plug, Diversion Tunnel No. 3.
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63. Aerial view of Hoover Dam construction site looking upstream on the Colorado River
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64. Upper portal trashrack for diversion tunnel no. 1, on the Nevada side.
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65. Diversion tunnel no. 2, showing the pumpcrete line to the upstream plug
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66. View of no. 4 plug, Hoover Dam site
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67. Downstream view of Hoover Dam construction
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68. Construction inside tunnel, Hoover Dam site
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69. Interior of diversion tunnel showing pipe
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70. Interior of tunnel during Hoover Dam construction
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71. View of Hoover Dam construction from the top of the dam
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72. Interior of diversion tunnel during Hoover Dam construction
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73. Interior of Hoover Dam diversion tunnel during construction
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74. Looking upstream toward the upper plug and raise, in diversion tunnel no. 3.
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75. Interior of diversion tunnel during Hoover Dam construction
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76. Diversion tunnel no. 1 trashrack and counterweight assembly just prior to the diverting of the...
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77. Diversion of the Colorado River into diversion tunnel no. 1 as the gate on diversion...
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78. Downstream view of Hoover Dam construction site
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79. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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80. Hoover Dam construction site, looking upstream from the lower portals road
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81. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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82. Aerial view of Hoover Dam, looking upstream on the Colorado River
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83. Looking upstream toward no. 1 upstream plug, showing approximately 7,100 second feet of water being...
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84. Diversion tunnel under construction - Hoover Dam
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85. Digging diversion tunnels at Hoover Dam.
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86. Hoover Dam -- downstream face
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87. Hoover Dam -- downstream face
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88. View of Hoover Dam from downstream on the Colorado River
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89. View of Hoover Dam from downstream on the Colorado River
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90. View of Hoover Dam from the downstream side of the Colorado River
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91. Hoover Dam from the downstream side
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92. Hoover Dam from downstream side
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93. Hoover Dam -- upstream side
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94. Hoover Dam -- upstream side
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95. Upstream view of Black Canyon during early stage of Hoover Dam construction
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96. Aerial view of Hoover Dam
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97. Aerial view of Hoover Dam
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98. Hoover Dam -- outlet works
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99. Outlet works -- Hoover Dam
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100. Outlet works -- Hoover Dam
 

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