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1301 - 1325 of 2123 Items << < 48 49 50 51 52 53 54 55 56 57 > >>
1301 - 1325 of 2123 Items << < 48 49 50 51 52 53 54 55 56 57 > >>
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Grout tank and pumps for grouting contraction joints.
1936-09-01
2024-11-23 |
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Stiff-leg derricks in place on timber cribs for constructing the 3,000 foot cellular steel piling cofferdam on west side of river.
1934-12-28
2024-11-23 |
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Specifications 2329. Morrison-Knudsen Company, Inc., and Peter Kiewit Sons' Company. Progress view of the pump-discharge outlet structure showing the status of construction of the crest bends of P-1 to P-4 discharge pipes. Pipes P-1 and P-2 have...
1949-09-08
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At the controls of the concrete mixing plant. On the chart is recorded the weight of sand, gravel, cement, and water that makes up each batch of concrete. The chart also shows which of the four mixers below received the batch of aggregate, cement,...
1939-11-02
2024-11-23 |
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The completed construction deck for the left powerhouse erection. The lower end of the inclined concrete transfer skipway is also visible.
2024-12-23
2024-11-23 |
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General View, looking from the west side, at sections D, E, and G of west cofferdam.
1936-01-01
2024-11-23 |
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Specifications 2329. Contractor: Morrison-Knudsen Company, Inc. and Peter Kiewit Sons' Company. Subcontractor: Consolidated Western Steel Corporation. Progress view of 12-foot diameter pump-discharge pipe emerging from P-4 tunnel. The two top...
1949-10-06
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Looking north over pump plant construction
1940-06-21
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Concrete placing in progress at the downstream end of a low block in the spillway section of the dam.
1939-08-09
2024-11-23 |
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Dumping fill on river-side of cluster "G" at time of cofferdam leak.
1937-03-19
2024-11-23 |
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A branch of excavation spoil pile in Rattlesnake Canyon at water edge, in Columbia River.
1935-09-01
2024-11-23 |
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An 84-inch needle valve being placed on erection base in bay R-5 of the right powerhouse at Grand Coulee Dam. Eight of these needle valves, transferred from Boulder Dam, are being temporarily installed in the turbine pits by use of steel reducers...
1944-11-24
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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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Album leaf 311: Unhooking tube joint, 5/5/38
PH Coll 238.311
2024-11-23
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Album leaf 289: Diver 1/7/38
PH Coll 238.289
2024-11-23
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This photo of a group of U.S.B.R. engineers at Grand Coulee Dam was taken on March 08, 1936. Front Row (L. to R." Ed. Argursinger, D. M. Snow, Wendell Swanson, Wm. Harries, Geo. "Trig" Hanson, Jack Cavin, Fred Sharkey, Jake Neiman, A. F. Darland,...
1936-03-08
2024-11-23 |
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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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The President speaking over microphone to crowd at Mason City, on visit October 2, 1937.
1937-10-02
2024-11-23 |
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Control room in the left powerhouse, showing arrangement for indirect lightning along the wall and a ventilator in the ceiling. At the left, the benchboard for the control of the 108,000-kw. units is being installed, and at the right, control...
1942-02-11
2024-11-23 |
