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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - North from road at Dam about 3 cfs flowing down vertical shaft.
Type: Visual Materials(Opens in new tab)
Date: 1/17/1956
Call number: photCL SCE 02 - 43953
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 - Excavation in inlet channel near vertical shaft north-west approx. 18' above bottom grade.
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Portal Powerhouse
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Portal Powerhouse - Channel & Powerhouse structure, 700 cfs. Water flowing thru unrestricted By-Pass.
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Portal Powerhouse - Portal Forebay
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Portal Powerhouse - Portal Forebay - Bottom of vertical shaft in adit, shows upper portion of concrete bulkhead in adit.
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Portal Powerhouse - Portal Forebay - Looking west
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Portal Powerhouse - Portal Forebay - Looking west - shows cutting of channel to vertical shaft.
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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Inlet channel from top of vertical shaft.
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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Progress of excavation in intake channel to vertical shaft.
photCL SCE 02 - 43703