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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Penstock pipe in cribbing near outlet of Ward Tunnel welded together into pulling sections for installation in tunnel after start of outage.
Type: Visual Materials(Opens in new tab)
Date: Aug. 1956
Call number: photCL SCE 02 - 44795
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 - Progress picture
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Portal Powerhouse - Progress picture - First day of outage. Section of 12' diameter outlet pipe cut out and extending skid rails into tunnel for pulling penstock.
photCL SCE 02 - 44798
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Portal Powerhouse - View of 8.5' diameter penstock pipe supports inside 12' diameter outlet pipe, Ward Tunnel.
photCL SCE 02 - 43560
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Portal Powerhouse - Powerhouse before start of tunnel diversion from Florence Lake after outage of Oct. 18.
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Portal Powerhouse - Applying Protex protective coating to first section of 8.5' diameter penstock pipe prior to pulling into 12' diameter pipe for second section make-up.
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Portal Powerhouse - During outage, view down channel from point opposite outlet of diversion channel.
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Powerhouse 2a
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Powerhouse 2a - Looking towards the West Portal from a point below the outlet of the Shaver Tunnel along penstock 2a. Riveted pipe in this section.
photCL SCE 02 - 14900