Search for all of "Tunnels", all of "Diversion Tunnels", all of "Hoover Dam ariz And Nev -- Design And Construction"

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51. Hoover Dam construction
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52. Blasting at Hoover Dam site
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53. Inside a diversion tunnel -- Hoover Dam construction
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54. Construction in diversion tunnel -- Hoover Dam
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55. Construction of diversion tunnel at Hoover Dam
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56. Construction workers in diversion tunnel, Hoover Dam site
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57. Diversion tunnel under construction at Hoover Dam site
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58. Construction of Hoover Dam diversion tunnel
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59. Construction -- Hoover Dam -- Diversion tunnel
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60. Construction of Hoover Dam diversion tunnel
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61. Construction of Hoover Dam diversion tunnel and portal
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62. Construction of Hoover Dam
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63. Construction workers inside Hoover Dam diversion tunnel
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64. Portals, Hoover Dam construction
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65. Hoover Dam construction
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66. Hoover Dam construction -- various phases
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67. Construction of Hoover Dam
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68. Diversion tunnel -- Hoover Dam
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69. Construction -- Hoover Dam
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70. Hoover Dam construction
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71. Hoover Dam construction
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72. Hoover Dam construction
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73. Hoover Dam construction
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74. Aerial view -- Hoover Dam construction
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75. View showing method of finishing slabs in invert lining.
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76. Interior of diversion tunnel during Hoover Dam construction
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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. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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79. Hoover Dam construction site, looking upstream from the lower portals road
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80. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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81. Aerial view of Hoover Dam, looking upstream on the Colorado River
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82. Hoover Dam -- downstream face
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83. Hoover Dam -- upstream side
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84. Hoover Dam -- upstream side
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85. Hoover Dam -- outlet works
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86. Outlet works -- Hoover Dam
 

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