Visual Materials
Big Creek Powerhouse #4
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Tunnel intake pipe [in Block 13, Dam 7].
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Sluice pipe through block 9
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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 - concrete placement in block forms at upper level]
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Foundation block 13, 1290-95.
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Big Creek Powerhouse #4
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Big Creek Powerhouse #4 - Foundation block 13 to 1310.
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Big Creek Powerhouse #4
Visual Materials
Big Creek Powerhouse #4 - Foundation block 13 to 1310.
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