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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - First four sections of 8.5 diameter penstock, ready for install.
Type: Visual Materials(Opens in new tab)
Date: 8/11/1955
Call number: photCL SCE 02 - 43645
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 - View of 8.5' diameter penstock pipe supports inside 12' diameter outlet pipe, Ward Tunnel.
photCL SCE 02 - 43560
Portal Powerhouse
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Portal Powerhouse - Outer end of 12' pipe showing install of I-beams for supporting penstock.
photCL SCE 02 - 43650
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.
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Portal Powerhouse
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Portal Powerhouse - Up tailrace channel from under bridge, during outage to install triangular restriction at end of branch of penstock.
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Portal Powerhouse
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Portal Powerhouse - Penstock and Wye ready for connection to by-pass pipe.
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Portal Powerhouse
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Portal Powerhouse - Setting pump for the first pumping of pool at end of 12' diameter pipe.
photCL SCE 02 - 43309