Visual Materials
Portal Powerhouse - Forebay
- Description
- Portal Powerhouse - Forebay - View from right abutment showing site preparation for downstream rock fill portion of the dam.
- Date
- 7/23/1955
- Call number
- photCL SCE 02 - 43306
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Forebay - View from left abutment showing completed foundation preparation under a portion of rock fill section. Shovel and Dozer excavating in upstream cutoff.
photCL SCE 02 - 43304
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 - Forebay - Upstream toe of rock fill section of forebay dam showing pervious filter layer in place between rock fill and impervious sections of embankment.
photCL SCE 02 - 43549
Visual Materials
Portal Powerhouse - Forebay - View from left abutment showing progress in reservoir clearing and borrow pit stripping. Portion of new road location in background to right of center.
photCL SCE 02 - 43305
Visual Materials
Portal Powerhouse - Forebay - Fill placing operation as seen from east abutment.
photCL SCE 02 - 43632
Visual Materials
Portal Powerhouse - Forebay - Fill placing operation as seen from east abutment.
photCL SCE 02 - 43633