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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Constructing bulkhead in 12' pipe for diversion.
Type: Visual Materials(Opens in new tab)
Date: 7/11/1955
Call number: photCL SCE 02 - 43280
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
Visual Materials
Portal Powerhouse - View showing timber backing for 14"welded plate diversion bulkhead in 12' diameter pipe.
photCL SCE 02 - 43307
Portal Powerhouse - Upstream end 12' pipe
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Portal Powerhouse - Upstream end 12' pipe - Diversion bulkhead in background.
photCL SCE 02 - 43282
Portal Powerhouse
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Portal Powerhouse - Opening in 12' pipe [near end of Ward Tunnel] for diversion.
photCL SCE 02 - 43281
Portal Powerhouse
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Portal Powerhouse - View of tunnel diversion during test flow of 490 cfs. Flow in diversion ditch from 12' pipe to junction with Rancheria Creek channel.
photCL SCE 02 - 43297
Portal Powerhouse
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Portal Powerhouse - View of tunnel diversion during test flow of 490 cfs. Flow from 6'x12' opening in 12' pipe.
photCL SCE 02 - 43296
Portal Powerhouse
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Portal Powerhouse - Flow down diversion channel from 12' pipe to Rancheria Creek during 490 c.f.s. test flow.
photCL SCE 02 - 43300