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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Starting excavation from Station 0+00, lower end of tailrace channel.
Type: Visual Materials(Opens in new tab)
Date: 8/20/1955
Call number: photCL SCE 02 - 43568
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 - View of tailrace channel from point near lower end of excavation.
photCL SCE 02 - 43694
Portal Powerhouse
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Portal Powerhouse - Start of tailrace excavation at lower end. View taken thru channel span of State Hwy. Bridge.
photCL SCE 02 - 43569
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Portal Powerhouse - Record pictures of tailrace channel during outage: Upper end of channel and lower end of tunnel diversion channel used during 1955.
photCL SCE 02 - 43798
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Portal Powerhouse - Record photo of appearance of tailrace channel immediately downstream from powerhouse prior to excavation for tailrace weir.
photCL SCE 02 - 44821
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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 - Tailrace channel excavation progress in section isolated by diverting tunnel discharge in Potter Creek Channel.
photCL SCE 02 - 43545