Vallecito Dam Construction Project
Pages
-
- Placing concrete in spiral stairway and air shafts
- Placing concrete in spiral stairway and air shaft from elevation 7641 to 7649.5., Original photo number: Pine R - 290
-
- Placing dumped riprap on upstream slope of embankment
- Placing dumped riprap on upstream slope of embankment in vicinity of sta. 33+00. Dragline is being used to grade material to the required slope., Original photo number: Pine R - 055
-
- Placing embankment against left wall
- Placing mechanically tamped embankment against left wall of spillway gate structure between stations 5+84 and 6+32., Original photo number: Pine R - 386
-
- Placing embankment in additional cut-off trench (1)
- Placing embankment in additional cut-off trench. Looking toward right abutment from axis station 15+75., Original photo number: Pine R - 080
-
- Placing embankment in additional cut-off trench (2)
- Placing embankment in additional cut-off trench. Looking toward right abutment from axis sta. 16+25. Refer to Pine R - 188 and 195., Original photo number: Pine R - 135
-
- Placing embankment in old river channel
- Embankment placing in old river channel, where operations are being concentrated at present. The No. 3 section is seen in foreground grading into the downstream No. 2 section near rock-rake and trucks., Original photo number: Pine R - 096
-
- Placing embankment in temporary diversion channel
- Embankment placing operations looking upstream in temporary diversion channel from right side at sta. 7+75. Shovel is excavating stock-piled material and the bulldozer is spreading it., Original photo number: Pine R - 437
-
- Placing gate chamber, air shaft, & spiral stairway forms
- Placing forms for outlet works gate chamber, air shaft, and spiral stairway shaft., Original photo number: Pine R - 286
-
- Placing riprap next to spillway channel (1)
- Placing dumped riprap at right side of outlet for spillway channel., Original photo number: Pine R - 243
-
- Placing riprap next to spillway channel (2)
- Placing dumped riprap on right side of spillway outlet channel. Darker colored rock was placed during 1939 season., Original photo number: Pine R - 391 a&b
-
- Placing sewer pipe toe drain
- Placing the 12-inch diameter sewer-pipe toe drain. The boards were used to gauge the 6 inches of 3/4-inch to 1.5-inch gravel required to be placed about the pipe. The remainder of the trench was filled with small cobbles., Original photo number: Pine R - 144
-
- Placing sewer-pipe drain
- Placing transverse sewer-pipe drain under spillway floor at sta. 7+95., Original photo number: Pine R - 388