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 - Diversion tunnel, lower portal site.
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Lower cofferdam & tunnel portal site, Madera County abutment.
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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) - Dam 7 looking north along axis. Inlet tunnel portal at lower left.
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [Dam 7 construction - showing lower portal of bypass tunnel.
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Big Creek Powerhouse #4
Visual Materials
Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [site of Tunnel #1 outlet portal]
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