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Portal Powerhouse



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  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Cut bank in rear of powerhouse structure showing extent of minor washing due to overflow of seepage water into excavation.

    photCL SCE 02 - 43734

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Potter Creek undermined 2 to 5 feet.

    photCL SCE 02 - 44001

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Potter Creek culvert washed out.

    photCL SCE 02 - 43999

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Potter Creek culvert washed out.

    photCL SCE 02 - 44002

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Enlarging Potter Creek channel to handle tunnel flow during excavation of tail race channel.

    photCL SCE 02 - 43302

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Undercutting of southwest abutment of Highway 168 bridge under Potter Creek

    photCL SCE 02 - 43945