Visual Materials
Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Progress pictures (from Group 1)
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Big Creek Powerhouse #4 - Progress pictures (from Group 1) - Excavation for Powerhouse 4, outlet portal of power tunnel, and switchyard.
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [Racks in for Big Creek 4 Switchyard]
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Excavation for Big Creek Powerhouse #4
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Decomposed joint zone near the top of the dam.
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Big Creek Powerhouse 4 - Powerhouse No. 4
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Big Creek Powerhouse 4 - Powerhouse No. 4 - showing Penstock and Switchyard
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