Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Temporary diversion channel; stream gauger's cabin in background.
- Date
- 8/11/1955
- Call number
- photCL SCE 02 - 43646
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Portal Powerhouse - Temporary diversion channel on east side of powerhouse. Small left channel carries leakage water from east embankment.
photCL SCE 02 - 43853

Visual Materials
Portal Powerhouse - Potter Creek channel used as temporary diversion. View from Hwy Bridge looking upstream.
photCL SCE 02 - 43647

Visual Materials
Portal Powerhouse - Starting to fill Potter Creek temporary diversion channel after returning tunnel flow to permanent tailrace.
photCL SCE 02 - 43686

Visual Materials
Portal Powerhouse - View from east bank of tailrace channel - temporary diversion channel.
photCL SCE 02 - 43649

Visual Materials
Portal Powerhouse - excavating tailrace channel to final grade in section up-stream from Highway Bridge.
photCL SCE 02 - 43689

Visual Materials
Portal Powerhouse - During outage, view down channel from point opposite outlet of diversion channel.
photCL SCE 02 - 43799