Dams--Design and construction--Vallecito Reservoir (Colo.)--Photographs Archive Search Results
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Looking toward right abutment from sta. 0+00. (Photographic Point No. 3). Average elevation of embankment in foreground is 7626. Embankment placing operations have been suspended for this season. Refer to Pine R - 244.
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Looking along axis toward right abutment from sta. 0+00. (Photographic Point No. 3). Note excellent condition of embankment for hauling, also dust raised by vehicles.
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Looking toward right abutment from axis, station 0+00. (photographic Point No. 3). Note excellent condition of embankment for hauling equipment.
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Rolling semi-impervious section of embankment. Looking towards right abutment from a point 130 feet downstream from station 30+50
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Looking toward left abutment from top of concrete mixing plant. Smoke is caused by clearing operations on left side of river. Material being rolled in foreground is the semi-pervious (No. 3) section of the dam.
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Looking down into piezometer terminal well, showing pump, valves, and gauge. Refer to Drawing No. 191-D-227, Test apparatus installation.
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Looking along axis toward right abutment from sta. 0+00. (Photographic Point No. 3). Cutoff trench excavation in right foreground is nearly completed. Refer to Pine R - 132.
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Looking toward right abutment from sta. 0+00 on axis of dam. Stripping is shown complete on left abutment.
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Looking toward right abutment from axis station 0+00. (Photographic Point No.3).
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Looking toward right abutment from axis sta. 0+00 (Photographic Point #3)
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Looking toward right abutment from axis sta. 0+00. (Photographic Point No. 3). The three zones of Earth embankment are clearly defined by the different shades of material. Beginning with the dividing the light and dark material in the center of dam, to the right is the upstream (or mixed) No. 2 section grading into the No. 1; to the left Is the downstream (clay) No. 2 section grading into the No. 3 section where the roller is seen working at left....
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Looking toward right abutment from axis sta. 0+00 (Photographic Point No. 3). Note rock-rake at left foreground pushing oversize rock from No. 3 material into cobble fill. Refer to Pine R - 237.
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View of dam looking along axis toward right abutment from sta. 0+00. (Photographic Point No. 3).
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Looking along upstream face of embankment from right abutment. Slope is ready for riprap. Note trench at toe of slope to support the riprap.
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Looking toward right abutment along upstream face of embankment. Tractor is lowering loaded truck down the slope at station 9+00.
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Looking along upstream toe of embankment toward right abutment from station 7+35. Dragline is excavating a shoulder at toe of slope to support dumped riprap.
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Close-up of one awl of test pit excavated in No. 1 zone of embankment at station 22+25, 97 feet upstream from axis of dam. Purpose of pit was to determine percentage of plus 5-inch stones remaining in materials.
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Twelve yard Euclid bottom-dump truck dumping material on the upstream No. 2 section of the embankment at sta. 24+84. this material is approximately 1.5% below optimum moisture. Note the excellent condition of the embankment for truck travel.
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Sheeps-foot roller compacting upstream No. 2 material at station 20+25, 30 ft. upstream from dam axis. The moisture content of this material is approximately 1.5% below optimum moisture.
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Looking toward left abutment from top of stair shaft at 37+00, 20 ft. upstream from axis, showing different types of soil used in fill.