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26 - 50 of 182 Items << < 1 2 3 4 5 6 7 8 > >>
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41 degree, cast steel elbow, installed between penstock reducer section and needle valve in bay R-9 of the right powerhouse at Grand Coulee Dam. Eight needle valves, each having an 84-inch discharge, are being installed in the right powerhouse....
1945-01-02
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General view of the spillway section of Grand Coulee Dam, taken from the west bank for the Columbia River. On this date, approximately 80,000 cubic feet of water per second was plunged nearly 350 feet vertically down the face of the dam, creating...
1944-08-16
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Columbia Basin Project, Grand Coulee Dam. Bedrock in the old river channel, showing the natural water-worn rock surface as it is found under a bed of clay and boulders left in the canyon during the last ice age, and the operation of removing...
1937-04-01
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Grand Coulee Dam Seismograph Station, showing seismograph equipment before installation, arranged only for photographic purposes. Dr. Dead S. Carder of the U.S. Coast and Geodetic Survey is simulating the adjustment of position of galvanometers on...
1942-09-16
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Columbia Basin Project, Grand Coulee Dam. Removing weathered and unsound surface rock in the bottom of the Columbia River Channel to provide for a water tight union of granite bedrock and the dam.
1937-04-01
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An aerial view looking northeast. A general view showing feeder canal, area above feeder canal, and part of town of Grand Coulee. Highest crack in slide area is visible. Feeder canal outline can be seen back to headworks. A view of the area above...
1947-10-21
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A tight fit. The clearance between the huge 25-foot rotors and the stators of the two 75,000 kilowatt Shasta Dam generators, being installed at Grand Coulee Dam to make additional power available for war industries, is only 5/8 inch. Lowering this...
1942-11-28
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An aerial view looking east. A general view showing feeder canal, area immediately above slide area of canal, and part of town of Grand Coulee. Feeder canal shown back to headworks
1947-10-21
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Panoramic view of the Grand Coulee site. Both banks are visible, as are excavation operations and employee housing.
1935-08-02
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A distant view of Grand Coulee Dam showing the employee housing along the Columbia River, in Grand Coulee, Washington April 21, 1940.
1940-04-21
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Panoramic view of the Grand Coulee site. Both banks are visible, as are excavation operations and employee housing.
1935-08-02
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Although this truck alone weighs almost 60,000 pounds, it's not uncommon for one or two huge granite armor rocks to lift the front wheels clear of the ground. A dozer, blade visible at left, solved the truck drivers dilemma in this problem. The...
1950-07-11
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Specifications 2329. Contractor: Morrison-Knudsen Company, Inc., and Peter Kiewit Sons' Co. View of the 12-foot diameter pump-discharge pipes P-1 to P-6 showing their entrance into the outlet structure.
1949-10-11
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View over looking Coulee Dam--a new transmission tower rises.
1941-08-20
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Columbia Basin Project, Irrigation Division, West Canal, Specifications No. 1286--Utah Construction Co. and Winston Bros. Co., Contractor. Looking west into open outlet transition of Dry Coulee Siphon No. 2. The forms are warped from vertical to...
1948-09-28
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General view of early phase of construction of Grand Coulee Dam
2024-04-19
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One steel casing for a giant turbine at the Grand Coulee Dam makes a full carload. Water from the Columbia River, falling through this 16-foot runner at the rate of 141 tons a second, will drive the biggest electric generator ever built, to...
1941-04-03
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Before designs for the structure could be completed contract for the removal of two million yards of overburden was let to David H. Ryan. A slide along the left bank increased the amount of material to be handled to three million yards. Grand...
1933-12-14
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Photograph of the cross-river ferry taken from the left side ramp. Detail of the 4-drum hoist and the cables required to maneuver the ferry may be noted. This ferry is being used to carry some 350,000 tons of riprap and armor rock from the Bull...
1950-09-12
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Unit L-7 thrust bearing shoe Y-3, position No. 3, photographed after failing on June 30th, 1948, after 5,353 hours of service. Grand Coulee Power Plant, Columbia Basin Project, Coulee Dam, Washington
1948-07-01
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Bureau workmen Stretching bolts on scroll case in east powerhouse at Grand Coulee Dam, Left to right; Walt Scott and Robert Bush
1950-11-09
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Columbia Basin Project, Grand Coulee Dam. A view of the vertical lift hoist, block 10, with cable trays on either side and transit conduit in the background
1941-08-26
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Columbia Basin Project, Grand Coulee Dam. Exposed bedrock in the center section looking west toward block 40. Derrick equipment mounted on the steel shell on the left and another which is to be mounted on the timber located on the rock, are to be...
1937-04-29
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Upstream view of the dam
1941-05-09
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Upstream view of the dam taken from Rattlesnake Peak
1941-04-25
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