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Visual Materials

Portal Powerhouse - Forebay

Description: Portal Powerhouse - Forebay - Progress picture forebay dam. View from right abutment looking toward left abutment.
Type: Visual Materials(Opens in new tab)
Date: 7/30/1955
Call number: photCL SCE 02 - 43333
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 forebay
Visual Materials
Portal forebay - View taken from left abutment looking toward right abutment, showing major clearing of dam site and stripping on right abutment.
photCL SCE 02 - 43294
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - View from station 5+00, looking toward left abutment, showing outcroppings of ledge rock while excavating for upstream cutoff under impervious section.
photCL SCE 02 - 43311
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - View from left abutment showing progress in reservoir clearing and borrow pit stripping. Portion of new road location in background to right of center.
photCL SCE 02 - 43305
Portal Powerhouse - Forebay - Progress picture
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Portal Powerhouse - Forebay - Progress picture - excavating in upstream cut-off between sluiceway and left abutment.
photCL SCE 02 - 43316
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - View from right abutment showing site preparation for downstream rock fill portion of the dam.
photCL SCE 02 - 43306
Portal Powerhouse - Portal Forebay
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Portal Powerhouse - Portal Forebay - North side of reservoir and blanketed moraine from top of dam near left abutment.
photCL SCE 02 - 43784