Search for exactly "Diversion tunnels"

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101. Aerial view of Hoover Dam
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102. Water discharging from the Nevada and Arizona outlet works into the Colorado River
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103. View of water discharging from the Nevada and Arizona outlet works into the Colorado River
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104. Aerial view of Hoover Dam
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105. Construction of Hoover Dam
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106. Looking upstream at the upper end of no. 1 plug, showing forms for the intake...
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107. Looking upstream into no. 1 plug, showing the placing of the high pressure valves and...
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108. Hoover Dam
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109. Dowstream face -- Hoover Dam
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110. Hoover Dam and surrounding area
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111. Construction -- Hoover Dam
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112. Hoover Dam construction
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113. Blasting at Hoover Dam site
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114. Inside a diversion tunnel -- Hoover Dam construction
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115. Construction in diversion tunnel -- Hoover Dam
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116. Construction of diversion tunnel at Hoover Dam
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117. Construction workers in diversion tunnel, Hoover Dam site
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118. Diversion tunnel under construction at Hoover Dam site
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119. Construction of Hoover Dam diversion tunnel
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120. Construction -- Hoover Dam -- Diversion tunnel
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121. Construction of Hoover Dam diversion tunnel
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122. Construction of Hoover Dam diversion tunnel and portal
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123. Construction of Hoover Dam
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124. Construction workers inside Hoover Dam diversion tunnel
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125. Portals, Hoover Dam construction
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126. Hoover Dam construction
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127. Hoover Dam construction -- various phases
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128. Construction of Hoover Dam
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129. Diversion tunnel -- Hoover Dam
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130. Construction -- Hoover Dam
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131. Hoover Dam construction
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132. Hoover Dam construction
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133. Hoover Dam construction
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134. Aerial view of Hoover Dam and surrounding area
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135. Aerial view of Hoover Dam and surrounding area
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136. Hoover Dam construction
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137. Aerial view -- Hoover Dam construction
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138. View showing method of finishing slabs in invert lining.
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139. Hoover Dam -- retouched photo
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140. Hoover Dam -- retouched photo
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141. Trucks hauling concrete in the diversion tunnel
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142. Aerial view of Hoover Dam
 

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