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Dumping a 4-yard concrete bucket in a form near the high trestle.
1936-05-19
2024-11-25 |
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Concrete blocks and high trestle bents west of spillway section.
1936-05-22
2024-11-25 |
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Unloading a four-yard concrete bucket in a standard five-foot pour. Vibrator on extreme left.
1936-05-01
2024-11-25 |
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Typical blocks of concrete in the dam. Bents in upper part support high placing trestle.
1936-05-01
2024-11-25 |
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Cantilever and Whirley-type crane assembly on the two concrete placing trestles.
2024-11-25 |
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Typical block being prepared for a five-foot "lift" of concrete - note cooling pipes on top.
1936-05-26
2024-11-25 |
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The 5' x 7' transverse gallery in block 22, elevation 900, looking upstream.
1936-05-22
2024-11-25 |
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Skip-way arrangement for transferring concrete to lower placing trestle, elevation 950 west end.
1936-06-01
2024-11-25 |
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Looking west, block 31 in near foreground - high and low trestles, conveyor bridge and Westmix, cantilever and whirley cranes. Part of Smith Valley gorge in foreground.
1936-06-08
2024-11-25 |
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West abutment, showing mixing plant, entrance of aggregate conveyor at top and the two placing trestles below ; reinforcing steel in west power house foundation.
1936-06-16
2024-11-25 |
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West end of dam between the two placing trestles ; forms for penstock block-outs in left foreground. Block 40 and west cofferdam in the distance.
1936-06-26
2024-11-25 |
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Looking west across the dam. Block 31 in foreground, high and low placing trestles distance. Suspension bridge for aggregate in upper right corner.
1936-06-26
2024-11-25 |
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Looking west from Smith gorge - blocks are from No. 31 to abutment. high and low trestles, and Westmix.
1936-06-26
2024-11-25 |
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Dumping concrete from a 4-yard bucket through floor on west end of 950 elevation trestle.
1936-06-26
2024-11-25 |
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"Elephant trunks" used in placing concrete in power house walls.
1936-06-01
2024-11-25 |
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Looking west - on bedrock, toward block 31. Elevation 1024 trestle to the right.
1936-07-01
2024-11-25 |
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Concrete placing trestle (1024 elev. from block 33 west; and the 880 and 900 galleries in block 31.
1936-07-01
2024-11-25 |
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Lower end of concrete transfer skip to lower trestle on west side.
1936-07-01
2024-11-25 |
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Forms and steel for 24-foot octagonal block-outs for 18-foot diameter steel penstocks in left power house. Low placing trestle (950 elev. in upper left.
1936-07-06
2024-11-25 |
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Block 11-A showing section of 900 elevation gallery form, and in lower right a portion of grouting and drainage gallery. Upright pipes in block are 5-inch porous drain pipes.
1936-07-13
2024-11-25 |
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Bents in "high" placing trestle - 36-inch I-beam columns.
1936-07-15
2024-11-25 |
