Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - View from top of south bank. Same flow.
- Date
- 10/22/1955
- Call number
- photCL SCE 02 - 43894
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Portal Powerhouse - 1500 cfs flow taken from top of south bank of channel.
photCL SCE 02 - 43914

Visual Materials
Portal Powerhouse - Flow 425 cfs. view from upper end looking south.
photCL SCE 02 - 43648

Visual Materials
Portal Powerhouse - Portal Forebay - View across reservoir towards inlet channel, from top of dam.
photCL SCE 02 - 43785

Visual Materials
Portal Powerhouse - Emergency ditch dug to control increased flow thru bank at lower left.
photCL SCE 02 - 43735

Visual Materials
Portal Powerhouse - View of tunnel diversion during test flow of 490 cfs. Flow from 6'x12' opening in 12' pipe.
photCL SCE 02 - 43296

Visual Materials
Portal Powerhouse - South bank of powerhouse excavation with considerable seepage from tunnel diversion.
photCL SCE 02 - 43528