Diversion Tunnel No. 3 nearly completed. Sept. 1, 1932. "Asphalt visible on ceiling. Fill on Floor & rails have to be removed prior to use for water diversion. Tunnel is completed except for fill removal." W.A. Davis, 1992
Building site of sub station. Air compressor on right; tripod w/large jackhammer, upper left, to drill holes. Note on back: "Air compressor used on railroad grade by Lewis Construction."
View of completed power substation; Tents are for workers. Note: "Took all day to get from boat launch to power substation. Took your lunch and a canteen."
Jumbo rig. "First operation: Giant Jumbo's whose steel frames rested on International trucks backed up to tunnel headings and with those 20 pneumatic drills soon bored the holes for the giant sticks of powder."
Road to McKeeversville camp by Colorado River. Note on back: ""McKeeversville was also called Hooverville or Ragtown. Early photo - at this time the only people on the river were the three boatmen. - W. A. Davis, 1992.""