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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Ward tunnel diversion from Powerhouse construction.
Type: Visual Materials(Opens in new tab)
Date: 7/28/1955
Call number: photCL SCE 02 - 43594
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 - construction with 440 cfs. diversion from Ward Tunnel.
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Portal Powerhouse
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Portal Powerhouse - Start of diversion excavation. [exposing section of Ward Tunnel for diversion]
photCL SCE 02 - 43271
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Portal Powerhouse - Temporary flow diversion from 12' pipe [Ward Tunnel]. Flow about 425 cfs..
photCL SCE 02 - 43643
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Portal Powerhouse - Temporary flow diversion from 12' pipe [Ward Tunnel]. Flow about 425 cfs..
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Portal Powerhouse - Lower Portal release from Ward Tunnel prior to Portal Powerhouse construction.
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Portal Powerhouse
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Portal Powerhouse - Opening in 12' pipe [near end of Ward Tunnel] for diversion.
photCL SCE 02 - 43281