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Upstream and Downstream Face Forms Above Elevation 1305 Abutment Areas Figure 03, Appendix II
1941-03-24
2024-05-09 |
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Upstream Face Forms - Cantilever section above elev. 1300 - Abutment Section Figure 04 - Appendix II
1941-03-24
2024-05-09 |
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Downstream Face Forms - First Cantilever Section - Abutment Areas Figure I, Appendix II
1941-03-26
2024-05-09 |
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Upstream Face Form - Spillway Crest Section - Panel B
1941-03-24
2024-05-09 |
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Upstream Face Forms - Spillway Crest - Cantilever Section
1941-03-24
2024-05-09 |
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Representatives of various Northwest and Federal agencies meet at Grand Coulee Dam to confer on problems pertaining to the joint investigations of the Columbia Basin Irrigation project.
1940-06-10
2024-05-09 |
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A Government survey party cross sections the pumping plant discharge tunnels. The measurements will be used to compute the volume of the excavated rock.
1940-03-19
2024-05-09 |
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Proposed site for the North or upper dam in the Grand Coulee for the balancing reservoir.
1940-08-23
2024-05-09 |
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Diamond drill explorations at the Narrows damsite in connection with pending litigation for right of way along the Spokane River.
1940-06-27
2024-05-09 |
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The downstream end of the three station service penstocks prior to the installation of the two turbines.
1940-02-29
2024-05-09 |
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A section of the scroll case for a 14,000 hp. station service turbine is lowered into position.
1940-05-07
2024-05-09 |
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The 5-ton runner or wheel of a 14,000 hp. station service turbine is lowered into position.
1940-08-12
2024-05-09 |
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The stator of a 12,500 kv-a. station service generator is carefully gone over with a vacuum cleaner. Inside this cavity will be installed a 40-ton rotor which will be whirled at 400 r.p.m. by the turbine embedded in the concrete below.
1940-08-29
2024-05-09 |
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The 40-ton rotor of a 12,500 kv-a. station service generator is carefully lowered into position inside the stator. The huge generator part fits so closely that only thin slats may be used to prevent lateral motion while being lowered by the crane.
1940-08-29
2024-05-09 |
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The workmen are installing the cooling system housing for one of the station service generators. On the right is the governor and its control board which will govern the speed of the turbine that turns this generator.
1940-10-24
2024-05-09 |
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Battery room of the left powerhouse. These storage batteries, 120 cells in all, will supply direct current for operation of control equipment, emergency lighting, emergency pumps, and other equipment.
1940-10-26
2024-05-09 |
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Installation in progress on the draft tube lining for the 150,000 hp. turbine at unit L-3 of the left powerhouse. In place at the top of the draft tube is the supporting spider which will be removed when the installation is completed.
1940-10-24
2024-05-09 |
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A 30-ton section of the scroll case for a 150,000 hp. hydraulic turbine which is to be installed in the left powerhouse. There are 14 sections in the entire scroll case with a total weight of 291 tons.
1940-10-08
2024-05-09 |
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Erection in progress on the structural steel take-off tower atop the left powerhouse roof.
1940-11-28
2024-05-09 |
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Members of the Safety Engineering staff instruct a class of contractors and Government employees in first aid practices.
1940-04-05
2024-05-09 |
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Conjunction of the pumping plant foundation and the left abutment section of the dam.
1940-01-02
2024-05-09 |
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Upstream entrance to the diversion channels in the spillway section of the dam, which were prepared for the diversion of the 1940 flood waters.
1940-05-22
2024-05-09 |
