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Visual Materials

Portal Powerhouse - Portal Forebay - Looking west

Description: Portal Powerhouse - Portal Forebay - Looking west - shows cutting of channel to vertical shaft.
Type: Visual Materials(Opens in new tab)
Date: 9/15/1955
Call number: photCL SCE 02 - 43856
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 - Inlet channel from vertical shaft shows blanket in place.
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Portal Powerhouse - Forebay - Progress of excavation in intake channel to vertical shaft.
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Portal Powerhouse - Forebay - Inlet channel from top of vertical shaft.
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Portal Powerhouse - Forebay - Looking up inlet channel, showing excavation progress.
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