Portal Powerhouse

Description: Portal Powerhouse - Further excavation for Portal Powerhouse.
Type: Visual Materials(Opens in new tab)
Date: 8/10/1955
Call number: photCL SCE 02 - 43610
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 - Showing excavation for powerhouse building.
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Portal Powerhouse - Excavation for spill pipe of Surge Tank.
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Portal Powerhouse - Powerhouse excavation.
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Portal Powerhouse - Tailrace channel excavation view from highway bridge. Boulders ready for shooting.
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Portal Powerhouse - Foundation excavation in firm decomposed granite draft tube side of powerhouse. Excavation approx. 1' above final grade.
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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Drilling & placing powder for spillway excavation.
photCL SCE 02 - 43616