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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Record photo of appearance of tailrace channel immediately downstream from powerhouse prior to excavation for tailrace weir.
Type: Visual Materials(Opens in new tab)
Date: 9/24/1956
Call number: photCL SCE 02 - 44821
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 - Tailrace channel downstream from deck of highway bridge.
photCL SCE 02 - 43925
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Portal Powerhouse - View of tailrace channel from point near lower end of excavation.
photCL SCE 02 - 43694
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Portal Powerhouse - Tailrace channel excavation progress in section isolated by diverting tunnel discharge in Potter Creek Channel.
photCL SCE 02 - 43545
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Portal Powerhouse - Starting excavation from Station 0+00, lower end of tailrace channel.
photCL SCE 02 - 43568
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Portal Powerhouse - Tailrace channel excavation view from highway bridge. Boulders ready for shooting.
photCL SCE 02 - 43641
Portal Powerhouse
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Portal Powerhouse - View to highway bridge with tailrace channel excavation readying large boulders for blasting.
photCL SCE 02 - 43640