Vallecito Dam Construction Project

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: Excavation of additional cut-off trench (4); Excavating additional cut-off trench through embankment placed in 1938. Taken from point 25 feet upstream from dam axis at station 17+00., Original photo number: Pine R - 099

: Excavation of additional cut-off trench (5); Excavation for additional cut-off trench, looking toward left abutment from axis sta. 14+90. Excavation is practically complete. Junction with secondary cut-off is at rear end of shovel. Refer to Pine R - 183., Original photo number: Pine R - 100

: Excavation of additional cut-off trench (6); Excavation of additional cut-off trench looking toward right abutment from axis sta. 16+50. Right side of cut is in primary cut-off trench placed in 1938. Shovel is working in original foundation material. Refer to Pine R - 182., Original photo number: Pine R - 086

: Excavation of additional cut-off trench (7); Excavation for additional cut-off trench, looking toward right abutment from axis station 16+75. Excavation is complete and bottom of trench is a minimum of 6 ft. into glacial till. Refer to Pine R - 188., Original photo number: Pine R - 103

: Face of Borrow Pit cut; Face of cut in Borrow Pit No. 1 at station 120+50/45+00. A full face cut will be taken here to obtain No. 2 (impervious) material., Original photo number: Pine R - 216

: Face of cut at right side of spillway; Face of cut at right side of spillway between stations 5+65 and 5+84. Note grout leaks resulting from grouting of cut-off wall at station 5+84. These leaks were caulked and successfully sealed., Original photo number: Pine R - 346

: Far-away view of dam; View of dam looking upstream from a point approximately 3/4 mile away., Original photo number: Pine R - 060

: Filling embankment; Placing material (clay ) from Borrow Pit No. 1 in Zone 2 of the embankment. The material was close to optimum moisture. Note the excellent condition of the fill for hauling., Original photo number: Pine R - 066

: Filling spillway expansion joints; Pouring a hot mixture of latex and road oil in expansion joint in spillway floor., Original photo number: Pine R - 441

: Finishing concrete floor panel; Concrete finishers troweling center floor panel between stations 6+90 and 7+25., Original photo number: Pine R - 359

: Flattening the embankment; Rolling Zone 2 (clay ) material from Borrow Pit No. 1 at station 13+00, six feet upstream from axis. This material was approximately one per cent on the dry side of optimum moisture, and had a field cylinder penetration resistance of 1150., Original photo number: Pine R - 106

: Flattening the embankment; Rolling No. 3 material after materials have been spread and the oversize rock removed with a rock rake., Original photo number: Pine R - 104

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