Vallecito Dam Construction Project

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Form construction for right spillway wall
Form construction for right spillway wall between stations 5+84 and 6+32. Note section of crest already placed., Original photo number: Pine R - 333
Forming and reinforcing gate chamber
Placing forms and reinforcement for gate chamber and addition to spiral stairway shaft., Original photo number: Pine R - 085
Forms in place for left wall footing
Forms in place for left wall footing between stations 8+30 and 8+65. Top of form is on finished floor grade. Rough-grading has been completed by general contractor, and has been turned over to sub-contractor for fine-grading, Average depth of over-excavation is 4 inches in this area., Original photo number: Pine R - 426
Foundation drainage system
Foundation drainage system. Note grout risers at right side of trench for grouting system after embankment has been placed., Original photo number: Pine R - 307
Gate chamber taking shape
Inside forms and reinforcement in place for outlet works gate chamber and spiral stairway addition, Original photo number: Pine R - 241
Gate structure
Looking downstream at completed gate structure., Original photo number: Pine R - 335
General view of contractor's camp
General view of camp constructed by the Martin Wunderlich Co. The three large buildings at the left are the commissary, mess hall and office., Original photo number: Pine R - 049
Grouting operations in outlet works
Grouting operations in outlet works near station 8+25. Grout mixer and pump are in the center of the picture., Original photo number: Pine R - 168
Hand-tamping around outlet conduit
View of hand-tamping operations around outlet conduit, taken fro the top of the left bank opposite outlet works station 8+85. Note embankment cut-off wall in left background., Original photo number: Pine R - 311
Inlet channel to outlet conduit
Inlet channel to outlet conduit, looking downstream. Structure seen in center is the concrete mixing plant., Original photo number: Pine R - 272
Inlet channel to spillway excavation
Power shovel excavating rock from inlet channel to the spillway. Station 3+50., Original photo number: Pine R - 047
Installation of copper tubing for piezometer connections
Installation of copper tubing for piezometer connections at elevation 7640, sta. 11+75. Camera is about 53 feet downstream from axis., Original photo number: Pine R - 122

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