Portal Powerhouse

Description: Portal Powerhouse - Ward Tunnel discharge about 200 cfs from State Highway south of Potter Creek Bridge.
Type: Visual Materials(Opens in new tab)
Date: 1/17/1956
Call number: photCL SCE 02 - 43943
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 - Discharge at approximately 1800 cfs flow through Ward Tunnel.
photCL SCE 02 - 43920
Portal Powerhouse
Visual Materials
Portal Powerhouse - View from highway bridge showing excavation progress in tailrace channel section isolated by diverting flow into Potter Creek Tunnel.
photCL SCE 02 - 43562
Portal Powerhouse
Visual Materials
Portal Powerhouse - South side of channel, vicinity of highway bridge after 1100 cfs test flow.
photCL SCE 02 - 43905
Portal Powerhouse
Visual Materials
Portal Powerhouse - Tailrace channel excavation progress in section isolated by diverting tunnel discharge in Potter Creek Channel.
photCL SCE 02 - 43545
Portal Powerhouse
Visual Materials
Portal Powerhouse - Undercutting of southwest abutment of Highway 168 bridge under Potter Creek
photCL SCE 02 - 43945
Portal Powerhouse
Visual Materials
Portal Powerhouse - Another view of discharge at approximately 1500 cfs flow thru tunnel.
photCL SCE 02 - 43919