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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Progress: Forebay earth and refill dam from west end.
Type: Visual Materials(Opens in new tab)
Date: 9/10/1955
Call number: photCL SCE 02 - 43712
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 - Progress: Forebay earth and refill dam from west end.
photCL SCE 02 - 43713
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Progress picture of forebay earth and rock fill dam.
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Portal Powerhouse
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Portal Powerhouse - Portal Forebay - South-west end of dam - shows compacting with sheep's foot roller.
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Portal Powerhouse - Portal Forebay
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Portal Powerhouse - Portal Forebay - Left end of dam from downstream side, showing spillway and pilot channel.
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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Progress picture forebay dam. View from right abutment looking toward left abutment.
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Portal Powerhouse - Portal Forebay
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Portal Powerhouse - Portal Forebay - Reservoir looking north, shows northeast end of dam.
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