Visual Materials
Big Creek Powerhouse #3 - Tunnel 3, excavation
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Big Creek Powerhouse #3 - Tunnel 3, excavation
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Big Creek Powerhouse #3 - Tunnel 3 at connection with surge chamber.
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Big Creek Powerhouse #3 - Tunnel #3 Trash rack near Surge Chamber.
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Big Creek Powerhouse #3 - Excavation for Tunnel 3
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Big Creek Powerhouse #3 - Excavation for Tunnel 3 - Shaver end.
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