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University of Idaho Digital Collections
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Construction of the Pumping Plant Structure, Grand Coulee Dam, Washington. Installation of pumping unit P-2 discharge pipe, showing the concrete form around the outlet tunnel, placement of reinforcing steel and in the center close to the concrete...
1949-05-16
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Specs # 2329, Contract I2r 18156, Contractor, Morrison-Knudsen Company Inc. and Peter Kiewit Son's Co. View looking north showing progress made on pumping plant including office wing, parking area, gantry crane, and storage building P-9 through...
1950-09-25
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View shows progress of P-1-Second Stage Phase two. Suction elbow installation to date. Contract 12r-18156. Contractors-Morrison Knudsen Company Inc. and Peter Kiewit Sons-Grand Coulee Dam, Columbia Basin Project.
1950-09-27
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View showing west crane recess
1940-04-10
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View of Grand Coulee from west bank. Cranes visible on bank.
1941-05-09
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Aerial view looking into the upper end of the 12 pumping plant discharge pipe tunnels. Just beyond the tunnel mouths is the pumping plant. The upper combined bends for discharge pipes Nos. 1 and 2 are in position at the bottom of the picture.
1949-06-15
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Spillway section of the dam as seen from the left bank near the shop building. Note the man and care at the waterline. (normal)
1942-04-28
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View of men working on tunnels cut into the bank
1938-09-27
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View of tunnels in the bank
1939-09-02
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View of heavy machinery digging tunnel into the bank
1938-07-26
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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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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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Specifications 2329, Morrison-Knudsen So., Inc. and Peter Kiewit Sons' Company. Progress view showing initial construction on the pump discharge outlet structure. On the right can be seen the completed invert of P-1 and P-2 conduits with the...
1949-06-28
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The exposed portions of the pumping plant discharge pipes gleam brightly in the sun with their coat of aluminum paint. Symbolic of the entire Columbia Basin Project--this picture shows Coulee Dam holding back the waters of the Columbia River...
1950-09-24
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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 of the west abutment from the east parking lot showing the discharge pipes, dam pumping plant and Coulee Dam.
1950-06-01
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Columbia Basin Project, Irrigation Division, Bacon Siphon and Bacon Tunnel. Looking into the downstream end of the Bacon Siphon from the point where it joins the Bacon Tunnel. The structure here has an inside diameter of 23-feet, 3-inches and when...
1950-04-27
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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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Specifications 2329. Contractor: Morrison-Knudsen Company, Inc. and Peter Kiewit Sons' Company. This aerial view of the Grand Coulee Dam area shows the status of progress on the construction of Grand Coulee pumping plant and feeder canal. The...
1949-09-21
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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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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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Lowering tube for placement in outlet works at elevation 1137.
1940-01-02
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East side of Penstock liner. Man inside liner gives scale.
1940-01-10
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