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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Cutting pilot channel through unfinished high section of tailrace channel.
Type: Visual Materials(Opens in new tab)
Date: 10/18/1955
Call number: photCL SCE 02 - 43800
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
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Portal Powerhouse - excavating tailrace channel to final grade in section up-stream from Highway Bridge.
photCL SCE 02 - 43689
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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 - Down tailrace channel near powerhouse.
photCL SCE 02 - 43904
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Portal Powerhouse - Record photo of appearance of tailrace channel immediately downstream from powerhouse prior to excavation for tailrace weir.
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Portal Powerhouse - Record pictures of tailrace channel during outage: Up channel from below highway bridge.
photCL SCE 02 - 43795