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Crown Prince Olav of Norway visited the project on May 28, 1939. From left to right, A.F. Darland of the Reclamation staff, E. F. Kaiser of Consolidated Builders, Inc. Crown Prince Olav, Eric Johnston of the Spokane Chamber of Commerce, and R. D....
1939-05-28
2024-11-24 |
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"Eyebrows" at the downstream or discharge end of the outlet conduits at elevation 1036. This short section of the 102-inch diameter conduits is not steel lined.
1939-10-24
2024-11-24 |
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A plate steel conduit liner, 102-inch inside diameter, is lowered to a block in the spillway section of the dam. Below are the partially installed castings for a ring seal gate installation at elevation 1136.
1939-12-01
2024-11-24 |
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Looking east over the upstream ends of the main unit penstocks for the left power house. Practically all of the formwork and reinforcement steel is in place and ready for the final embedment of the penstocks in concrete.
1939-04-04
2024-11-24 |
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Trashrack structures for protecting the intakes to the main unit penstocks. A steel rack or grill is being lowered into position
1939-12-01
2024-11-24 |
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Sandblast nozzles. From top to bottom: standard nozzle before use; Pangborn nozzle after 1,000 hours and standard nozzle after 2-1/2 hours.
2024-11-24
2024-11-24 |
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Sandblast cleanup of trashracks or grills prior to painting.
1939-09-30
2024-11-24 |
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The contractor's railroad crane places a painted or dipped trashrack in storage. The racks will not be moved to the dam until the paint has dried. If the heat of the sun is too severe, the racks are sometimes sprayed with white wash so that the...
1939-09-30
2024-11-24 |
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As a rack is withdrawn from the prime dipping tank, the excess paint is removed with an air jet. When the primer coat has dried, the rack will be dipped for the second and final coat of paint.
1939-09-30
2024-11-24 |
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An unpainted rack is lowered into the prime dipping tank. The primer is a coal tar pitch paint. (CTP-1), and one coat is applied. After a 72-hour drying interval, the rack is dipped into a hot mix of TP-2 pitch for the second and final coat.
1939-09-30
2024-11-24 |
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Manifold of piezmeter pipes in a recess in the elevation 1,000 gallery of block 53. Each of these pipes terminates at some point along the right outlet conduit at elevation 1036 in block 51.
1939-09-01
2024-11-24 |
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A draft tube pier nose casting is placed in position in the bottom of a main unit turbine pit at the left power house.
1939-07-20
2024-11-24 |
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A section of the rubble masonry retaining wall for the right abutment parking area is completed.
1939-06-20
2024-11-24 |
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A section of rubble masonry retaining wall is completed for the pumping plant parking area and for the highway grade change in this area.
1939-09-06
2024-11-24 |
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An 18-foot diameter penstock liner, and load of reinforcement steel approaches the right power house by road along the river. A barge will carry one truck and the loaded trailer across the intervening water of the right tailrace. The rear truck...
1939-10-27
2024-11-24 |
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A 200,000-volt X-ray machine photographing the circumferential welded seams of a main unit penstock section. One picture covers 16 inches of the seam; the penstock liner is rotated so that successive 16-inch sections of the seam are X-rayed. The...
1939-08-10
2024-11-24 |
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The 24-foot octagonal penstock tunnel in which the 18-foot penstock liners are installed. The platform and track for handling the penstock sections will be removed when the installation is completed.
1939-10-24
2024-11-24 |
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The installation of the penstock lining in the tunnel has been completed. The space between the lining and the walls of the tunnel will be backfilled with concrete.
2024-11-24
2024-11-24 |
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Welding in progress on the installation of an 18-foot diameter steel penstock liner section. The scaffold is used by welders to make the circumferential seam joining this section with the one previously installed.
1939-12-01
2024-11-24 |
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Transportation of a penstock section to the right power house. The truck and loaded trailer have moved onto the barge which will carry both across the intervening water of the right tailrace.
2024-11-24
2024-11-24 |
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A main unit penstock section about to be hoisted into a right power house turbine pit. A total of 126 sections was moved by this method into the right power house turbine pits without a single mishap.
1939-09-27
2024-11-24 |
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Western Pipe & Steel Company's fabrication plant at Electric City. Completed penstock sections have been rolled out into the storage yard.
1939-03-09
2024-11-24 |
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United States Department of the Interior Bureau of Reclamation Columbia Basin Project - Washington: Migratory Fish Control Leavenworth Station Location Map
1939-04-05
2024-11-24 |
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One of the three fish traps at Rock Island Dam on the Columbia River near Wenatchee, Washington. The traps were made a part of the fish ladders in existence at the dam.
1939-07-26
2024-11-24 |
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At one of the three fish traps at Rock Island Dam, a load of salmon is dumped into the tank compartment of a fish hauling truck. The fish will be hauled to one of the tributaries of the Columbia River below Coulee Dam and there released.
1939-04-28
2024-11-24 |
