Visual Materials
Portal Powerhouse - Butterfly valve attached to turbine nozzle
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Portal Powerhouse
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Portal Powerhouse - Installing temporary 3/8" plate bulkhead at end of turbine branch of penstock inside structure.
photCL SCE 02 - 43777
Portal Powerhouse
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Portal Powerhouse - First stages of Scroll Case and Butterfly Valve.
photCL SCE 02 - 44617
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Big Creek Powerhouse #3 - Unit 4
Visual Materials
Big Creek Powerhouse #3 - Unit 4 - Assembly of penstock & butterfly valve to turbine.
photCL SCE 02 - 28290
Big Creek - Mammoth Pool - Upper butterfly valve, Tunnel Portal, and Anchor "F"
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Big Creek - Mammoth Pool - Upper butterfly valve, Tunnel Portal, and Anchor "F".
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Portal Powerhouse
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Portal Powerhouse - Temporary backing to reduce vibration in 3/8" plate bulkhead in turbine Wye branch inadequate; it was replaced with concrete disc back by I-beams.
photCL SCE 02 - 43898
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F.P.C. Vol. 3, Projects 67 and 120 - Construction of Big Creek Powerhouse 3 and construction camps
Visual Materials
Construction of Powerhouse 3 and construction camps 1 to 54. Views include Tunnel 3, including intake construction, portal adit Camp 36, Camp 35 adit, outlet portal; Penstock 3 portal structure and manifold, surge chamber, drill sharpeners, connecting 18' penstock to manifold, butterfly valve house, flume to railroad sluicing water at outlet; Tunnel 3 excavation; Surge chamber construction; Construction views of Powerhouse 3, installation of 3 penstocks, turbine and generator installations at No. 3; Construction of 220kV switchyard.
photCL SCE