Three men by pile of rubble at mouth of Big Creek 4's powertunnel

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  Construction work at mouth of Big Creek 4's powertunnel. Hayes and friend are by dusty tunnel mouth with rubble

  Visual Materials

  Construction work at mouth of Big Creek 4's powertunnel. Hayes and friend are by dusty tunnel mouth with rubble. - No documentation.

  photCL SCE 05 - 53618

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  Jackhammer work at mouth of Big Creek 4's powertunnel

  Visual Materials

  Jackhammer work at mouth of Big Creek 4's powertunnel. Dust in tunnel looks like a blast just occurred.

  photCL SCE 05 - 53617

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  Tunnel mucker dumping load at mouth of Big Creek 4's powertunnel

  Visual Materials

  Tunnel mucker dumping load at mouth of Big Creek 4's powertunnel.

  photCL SCE 05 - 53615

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  Engineers (Hayes) taking measurements inside Big Creek 4's powertunnel

  Visual Materials

  Engineers (Hayes) taking measurements inside Big Creek 4's powertunnel.

  photCL SCE 05 - 53619

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  Group photo of tunnel crew in mouth of Big Creek 4's power tunnel

  Visual Materials

  Group photo of tunnel crew in mouth of Big Creek 4's power tunnel.

  photCL SCE 05 - 53614

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  Big Creek 4 construction work: three men planning work at Powerhouse #4 or Dam 7construction site

  Visual Materials

  Big Creek 4 construction work: three men planning work at Powerhouse #4 or Dam 7construction site.

  photCL SCE 05 - 53685