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Visual Materials

Portal Powerhouse - Forebay

Description: Portal Powerhouse - Forebay - Upstream face of dam near right abutment, sluice gate intall.
Type: Visual Materials(Opens in new tab)
Date: 10/14/1955
Call number: photCL SCE 02 - 43775
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 - Placing impervious blanket on morane slope upstream from right abutment.
photCL SCE 02 - 43534
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Portal Powerhouse - Forebay - Progress picture forebay dam. View from right abutment looking toward left abutment.
photCL SCE 02 - 43333
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Portal Powerhouse - Portal Forebay - North side of reservoir and blanketed moraine from top of dam near left abutment.
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Portal Powerhouse - Forebay - Compacting downstream dam foundation near west abutment.
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Portal Powerhouse - Forebay - Sluice pipe viewed from upstream.
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Portal Powerhouse - Forebay - Dam foundation prepared for fill placement near west abutment.
photCL SCE 02 - 43582