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Visual Materials

Portal Powerhouse - Forebay

Description: Portal Powerhouse - Forebay - Sluice pipe and encasement viewed from downstream.
Type: Visual Materials(Opens in new tab)
Date: 8/10/1955
Call number: photCL SCE 02 - 43613
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 - Completed concrete encasement around 24" diameter sluice pipe through rock fill downstream section.
photCL SCE 02 - 43536
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Sluice pipe viewed from upstream.
photCL SCE 02 - 43612
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Portal Powerhouse - Forebay - Progress picture showing placement of upstream impervious fill in sluice pipe area, to top of 24" sluice pipe concrete encasement.
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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Foundation excavation at location for sluice pipe, viewed from upstream.
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Portal Powerhouse - Forebay - View from downstream of sluice pipe foundation excavation.
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Portal Powerhouse - Portal Forebay
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Portal Powerhouse - Portal Forebay - Downstream side of dam showing outlet end of 24" sluice pipe.
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