Visual Materials
Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Dam 7
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Big Creek Powerhouse #4 - Dam 7 - Collapsed penstock sections and diversion tunnel. Other leakage 800' below dam.
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Leakage from diversion tunnel before placing bulkhead.
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [Tunnel workers in Dam 7 Diversion Tunnel]
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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 Diversion Tunnel portal]
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [Tunnel portal for Dam 7 diversion]
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Rocks at portal of diversion tunnel, Dam 7.
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