Search for all of "Tunnels", all of "Diversion Tunnels"

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101. Hoover Dam construction
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102. Hoover Dam construction -- various phases
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103. Construction of Hoover Dam
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104. Diversion tunnel -- Hoover Dam
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105. Construction -- Hoover Dam
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106. Hoover Dam construction
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107. Hoover Dam construction
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108. Hoover Dam construction
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109. Aerial view of Hoover Dam and surrounding area
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110. Aerial view of Hoover Dam and surrounding area
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111. Hoover Dam construction
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112. Aerial view -- Hoover Dam construction
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113. View showing method of finishing slabs in invert lining.
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114. Hoover Dam -- retouched photo
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115. Hoover Dam -- retouched photo
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116. Trucks hauling concrete in the diversion tunnel
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117. Aerial view of Hoover Dam
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118. Interior of diversion tunnel during Hoover Dam construction
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119. Diversion of the Colorado River into diversion tunnel no. 1 as the gate on diversion...
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120. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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121. Hoover Dam construction site, looking upstream from the lower portals road
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122. Construction on Hoover Dam and the power houses looking upstream from the lower portals road
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123. Aerial view of Hoover Dam, looking upstream on the Colorado River
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124. Hoover Dam -- downstream face
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125. View of Hoover Dam from the downstream side of the Colorado River
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126. Hoover Dam -- upstream side
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127. Hoover Dam -- upstream side
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128. Aerial view of Hoover Dam
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129. Hoover Dam -- outlet works
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130. Outlet works -- Hoover Dam
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131. Water discharging from the Nevada and Arizona outlet works into the Colorado River
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132. View of water discharging from the Nevada and Arizona outlet works into the Colorado River
 

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