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Visual Materials

Portal Powerhouse - Forebay

Description: Portal Powerhouse - Forebay - View from downstream of sluice pipe foundation excavation.
Type: Visual Materials(Opens in new tab)
Date: 7/20/1955
Call number: photCL SCE 02 - 43588
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Foundation excavation at location for sluice pipe, viewed from upstream.
photCL SCE 02 - 43586
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Sluice pipe and encasement viewed from downstream.
photCL SCE 02 - 43613
Portal Powerhouse - Portal Forebay
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Portal Powerhouse - Portal Forebay - Downstream side of dam showing outlet end of 24" sluice pipe.
photCL SCE 02 - 43786
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Completed concrete encasement around 24" diameter sluice pipe through rock fill downstream section.
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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Installing 6" dia. drain in foundation, sluice pipe area, prior to any fill. Note form for concrete cutoff around pipe. One of three installed.
photCL SCE 02 - 43323
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Sluice pipe viewed from upstream.
photCL SCE 02 - 43612