Search for all of "Tunnels", all of "Construction Workers", all of "Power Shovels"

<< < 1 > >> | 7 objects

Grid | List | Tile

1. Workers in diversion tunnels -- Hoover Dam site	2. Six Companies' power shovel dumping dirt in dump truck in diversion tunnel at Hoover Dam...	3. Construction of steel forms for the lining of the diversion tunnels
4. Switchyard control circuit tunnel under construction -- Hoover Dam site	5. Inside a diversion tunnel -- Hoover Dam construction	6. Construction workers inside Hoover Dam diversion tunnel
7. Diversion of the Colorado River into diversion tunnel no. 1 as the gate on diversion...