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Portal Powerhouse - Water trapped during night around powerhouse structure



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  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - View showing leakage through tunnel dump fill from diversion ditch during 490 c.f.s. flow, spilling into pool at end of 12' pipe.

    photCL SCE 02 - 43298

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Emergency ditch dug to control increased flow thru bank at lower left.

    photCL SCE 02 - 43735

  • Portal Powerhouse - Side Channel Diversion thru openings in 12' diameter pipe

    Portal Powerhouse - Side Channel Diversion thru openings in 12' diameter pipe

    Visual Materials

    Portal Powerhouse - Side Channel Diversion thru openings in 12' diameter pipe - approx. 1700 cfs flow in Ward Tunnel

    photCL SCE 02 - 44563

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - South bank of powerhouse excavation with considerable seepage from tunnel diversion.

    photCL SCE 02 - 43528

  • Portal Powerhouse

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Photo taken shortly after break-through of diversion ditch seepage into tailrace to south of Powerhouse.

    photCL SCE 02 - 43932

  • 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