Visual Materials
Portal Powerhouse - Forebay
- Description
- Portal Powerhouse - Forebay - Preparation for rolling 24" diameter sluice pipe in place at forebay dam.
- Date
- 7/30/1955
- Call number
- photCL SCE 02 - 43332
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Portal Powerhouse - Forebay - Completed concrete encasement around 24" diameter sluice pipe through rock fill downstream section.
photCL SCE 02 - 43536

Visual Materials
Portal Powerhouse - Portal Forebay - Downstream side of dam showing outlet end of 24" sluice pipe.
photCL SCE 02 - 43786

Visual Materials
Portal Powerhouse - Forebay - Progress picture showing placement of upstream impervious fill in sluice pipe area, to top of 24" sluice pipe concrete encasement.
photCL SCE 02 - 43327

Visual Materials
Portal Powerhouse - Portal Forebay - Close-up of 24" sluice pipe gate in place at upstream toe.
photCL SCE 02 - 43788

Visual Materials
Portal Powerhouse - Forebay - Foundation excavation at location for sluice pipe, viewed from upstream.
photCL SCE 02 - 43586

Visual Materials
Portal Powerhouse - Forebay - Sluice pipe intake.
photCL SCE 02 - 43813