Visual Materials
Big Creek Powerhouse 2a
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Big Creek - Powerhouse #2 & 2a (part 3) [Construction at Powerhouse 2A, manufacturing photos showing the fabrication of seamless steel pressure pipe [penstock] sections, forging hollow steel blocks into pipe, machining seamless steel pipe sections to proper thickness, pressure testing pipe sections, assembly of penstock sections and valves at PH 2A.]
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Big Creek PH #2A
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Big Creek PH #2A - Section of penstock showing the "Y" pieces just in near the powerhouse.
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Powerhouse 2a
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Powerhouse 2a - Looking downstream at Powerhouse #2, showing the structural steel work of PH #2A.
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Big Creek: Powerhouse No. 2 and 2a (part 3)
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Photographs of Powerhouse 2 and 2A, Part Three. Construction at Powerhouse 2A, images depicting the fabrication of seamless steel pressure pipe [penstock] sections, forging hollow steel blocks into pipe, machining seamless steel pipe sections to proper thickness, pressure testing pipe sections, assembly of penstock sections and valves at Powerhouse 2A.
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Big Creek PH 2A
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Big Creek PH 2A - "Y" branch penstock section for Pelton leg.
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