Portal Powerhouse

Description: Portal Powerhouse - Installation of penstock supports in pipe. View from downstream side of bulkhead.
Type: Visual Materials(Opens in new tab)
Date: 8/11/1955
Call number: photCL SCE 02 - 43654
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
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Portal Powerhouse - Installation of penstock supports in pipe. View from downstream side of bulkhead.
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Portal Powerhouse - Concreting pipe supports in Ward Tunnel. View of supports from upper end.
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Portal Powerhouse - Portal Forebay
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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 - Forebay - Excavating trench thru damp area in original ground downstream from relief hole R-24, for installation of perforated pipe drain.
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