Vallecito Dam Construction Project
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Anchor with pin bearing aligning device
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Radial gate hinge pin anchor with pin bearing aligning device in place on right side of spillway. Wooden blocks under anchor were replaced with steel supports before concrete was placed., Original photo number: Pine R - 409
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Back side of spillway inlet left wall
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Looking at back side of left wall of spillway inlet structure, stations 5+29.89 to 5+57.50, showing canvas enclosure heated by steam., Original photo number: Pine R - 399
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Borrow Pit No. 1 excavation (2)
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Excavation in Borrow Pit No. 1 in vicinity of station 47+00/121+50. Dragline is making about an 8-foot cut in straight clay for the downstream No. 2 section, The shovel is making about a 10-foot cut, mixing 5 feet of clay with 5 feet of the underlying sand and gravel for the upstream No. 2 section. It is intended that another 4-foot cut will be made in the gravelly material on the floor of the pit to be used in the No. 3 section., Original photo number: Pine R - 207
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Borrow Pit No. 1 excavation (4)
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Dragline excavating in Borrow Pit No. 1 at station 121+50/64+70. Material is for zone 2 of embankment., Original photo number: Pine R - 164
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Borrow Pit No. 1 excavation (5)
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Dragline excavating in Borrow Pit No. 1, station 115+00/10+50. Material is for zone 2 of embankment., Original photo number: Pine R - 219
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Borrow Pit No. 2
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Borrow Pit No. 2 - a on left side of river about 1/4 mile upstream from dam., Original photo number: Pine R - 175
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Borrow Pit No. 2 excavation (1)
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Excavating No. 3 material from Borrow Pit No. 2. Looking diagonally upstream from station 12+00/33+00., Original photo number: Pine R - 176
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Borrow Pit No. 2 excavation (13)
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Face of cut in Borrow Pit No. 2. Stadia rod (15 ft. long) is at station 61+75/13+55. From 7ft. To 11 ft. (measured from the bottom) of the road is glacial till, and from 11 to 12 feet is fine sand. The remainder of the cut is gravel and sand. Total cut is 28.5 feet., Original photo number: Pine R - 194
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Borrow Pit No. 2 excavation (15)
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Dragline and shovel excavating No. 3 material in Borrow Pit No. 2. Dragline at point 57+25/10+60, cut 18 ft. Shovel at point 55+75/11+75, cut 23 ft., Original photo number: Pine R - 188
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Borrow Pit No. 2 excavation (16)
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Face of cut in Borrow Pit No. 2, Area No. 2 station 59+75/12+00. Total cut is 21 ft. Layer of glacial till extends from about one foot below surface to about 10 feet below, and the lower 10 ft. is gravel., Original photo number: Pine R - 190
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