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.
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.
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.
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.
Looking along upstream face of dam toward left abutment from station 24+00. Bulldozer is being used to place riprap after being dumped from trucks. Note small average size of pieces compared with hat in foreground.
View of cut-off trench looking toward the right abutment of the dam from the upstream rim of the cut-off trench opposite station 33+50. Refer to Pine R - 71
Looking toward right abutment in cut-off trench. Part of footing for concrete wall is seen on slope. Wagon drill is working on 50-foot grout hole. Refer to Pine R - 66.
Cut-off trench excavation looking toward left abutment from a point opposite sta. 27+50. Survey crew is seen working at deepest portion of trench, which was through the sand pocket at station 23+25.
Placing concrete in cut-off wall opposite station 33+50, looking toward the right abutment. At left center concrete from the pump-crete pipe line is flowing into a hopper from which it is wheeled in buggies to the point of placement.
Looking toward the right abutment along centerline of the cut-off trench from opposite dam axis sta. 30+50, cut-off wall is completed, and placing of hand-compacted embankment has been started.