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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Leveling of spoil area over old Potter Creek channel. Note forest litter spread along north bank of tailrace channel.
Type: Visual Materials(Opens in new tab)
Date: 10/22/1955
Call number: photCL SCE 02 - 43896
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 excavation progress in section isolated by diverting tunnel discharge in Potter Creek Channel.
photCL SCE 02 - 43545
Portal Powerhouse
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Portal Powerhouse - Starting to fill Potter Creek temporary diversion channel after returning tunnel flow to permanent tailrace.
photCL SCE 02 - 43686
Portal Powerhouse
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Portal Powerhouse - Nearing completion of landscaping spoil area between tailrace channel and Forest Service road.
photCL SCE 02 - 43804
Portal Powerhouse
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Portal Powerhouse - View from highway bridge showing excavation progress in tailrace channel section isolated by diverting flow into Potter Creek Tunnel.
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Portal Powerhouse - View from east bank of tailrace channel
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Portal Powerhouse - View from east bank of tailrace channel - temporary diversion channel.
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Portal Powerhouse
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Portal Powerhouse - Down tailrace channel near powerhouse.
photCL SCE 02 - 43904