Visual Materials
Portal Powerhouse
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Portal Powerhouse
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Portal Powerhouse - Installing backing I-beams (15") prior to forming for concrete. Strengthening to reduce vibration during high flows.
photCL SCE 02 - 43902

Portal Powerhouse
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Portal Powerhouse - Installing temporary 3/8" plate bulkhead at end of turbine branch of penstock inside structure.
photCL SCE 02 - 43777

Portal Powerhouse
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Portal Powerhouse - Placing reinforcing steel for concrete disc, steel plate bulkhead.
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Portal Powerhouse
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Portal Powerhouse - View showing timber backing for 14"welded plate diversion bulkhead in 12' diameter pipe.
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Portal Powerhouse - Butterfly valve attached to turbine nozzle
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Portal Powerhouse - Butterfly valve attached to turbine nozzle - Penstock bulkhead still in place.
photCL SCE 02 - 44608

Portal Powerhouse
Visual Materials
Portal Powerhouse - 12' diameter pipe installed to reduce pressure at portal during high flows. At time, the lower baffle was still there at outlet restricting end area.
photCL SCE 02 - 43917