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University of Idaho Digital Collections
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Columbia Basin Project. Irrigation Division, Bacon Tunnel, Specifications 1236, T.R. Connolly, Inc., Contractors. Looking upstream at the outlet portal of Bacon Tunnel portal structure and open transition is complete except for backfilling and...
1948-11-22
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Columbia Basin Project, Irrigation Division, Long Lake Dam, Specification No. 1401, J.A. Terteling and Sons, Contractor. Reinforcing steel and forms in place ready for a pour in the tunnel. Long Lake Dam is two miles northeast of Stratford,...
1948-03-26
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Columbia Basin Project, Irrigation Division, Soap Lake Siphon, Specificatiosn 2411. Workmen removing dust from coal-tar primer prior to applying coal-tar enamel. Rags wrapped around sweep brooms are used. The enameling stage is in the background....
1950-07-17
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Three workers at smelter
1941-01-21
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Columbia Basin Project, Irrigation Division, Potholes East Canal. View showing stratification and fracturing in material in test pit at Sta. 499+00 at elevation 1028. View looks horizontally at corner behind miner in photo 2059-4 from same...
1948-09-02
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Columbia Basin Project, Irrigation Division, Potholes East Canal. View showing size of fractures in stratified material in test pit at Station 499+00. Bottom margin of photo is approximately elev. 1027. View inclines upward along corner behind...
1948-09-02
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Riveting together the sections of the #1 Shasta turbine scroll case in pit 7. On the left is the heater. In the center, a man is bouncing a heated rivet to knock off the oxidized scale and on the right are the riveters waiting for the rivet.
1942-02-23
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Needle valve being lowered to base in R-8 of East Powerhouse
1944-11-24
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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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South Coulee Dam--Main Canal Headowrks--View taken from the east bank of the approach channel looking west and downstream. Mixer and ""Pumperete"" set-up are shown in the central part of the view. The cut-off wall footing which runs through the...
1948-05-04
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South Coulee Dam--Main Canal Headworks--View taken from bank above west outlet transition wall looking east and upstream at the downstream end of a section of the barrels.
1948-07-15
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Columbia Basin Project, Irrigation Division, Specifications No. 2324, Schedule 1, Long Lake Headworks and concrete Canal Lining and Structures, Station 745+80 to Station 1101+29.0--Main Canal. Contractor: George B. Henly Construction Co., Inc....
1949-12-14
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South Coulee Dam--Main Canal Headworks--A view of the headworks structure taken from approximately station 10+00 on the main canal; the main canal pipe crossing is shown in the immediate foreground
1949-06-08
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South Coulee Dam--Zone I power tamping operations in cross-channels downstream from the cut-off wall, station 27+50
1947-07-09
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South Coulee Dam--Main Canal Headworks--View taken from east bank of the approach channel showing the false work for construction of the gate section of the headworks.
1949-05-03
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Columbia Basin Project. Irrigation Division, Bacon Tunnel, Specifications 1236, T.E. Connolly, Inc., Contractor. Looking upstream at the outlet portal of the Bacon Tunnel. Portal Structure and open transition is complete except for backfilling and...
1948-11-22
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Aerial view of construction of Grand Coulee Dam
1940-06-03
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Steel and Form work for drum gate installation. Steel is for spillway crest, bridge piers, and drum gate chamber
1940-06-20
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Steel and Form work for drum gate installation. Steel is for spillway crest, bridge piers, and drum gate chamber
1940-06-21
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Transition form for inlet to 57-inch supply pipe for drum gate control. One of these water supply inlets is in each pier for a total of 11. A 57"" butterfly valve will be connected to this inlet for control of water supply.
1940-06-12
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View of the construction on Grand Coulee Dam
1940-10-23
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Spillway Section--downstream face
1940-10-24
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Men align drum gate hinges
1940-11-30
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Men align drum gate hinges
1940-11-30
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