Visual Materials
Portal Powerhouse - Forebay
- Description
- Portal Powerhouse - Forebay - Progress picture placing fill in dike embankment.
- Date
- 8/15/1955
- Call number
- photCL SCE 02 - 43550
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Forebay - Progress picture of forebay earth and rock fill dam.
photCL SCE 02 - 43700
Visual Materials
Portal Powerhouse - Forebay - Placing earthfill in dike foundation.
photCL SCE 02 - 43617
Visual Materials
Portal Powerhouse - Forebay - Scraper placing earth in dike.
photCL SCE 02 - 43618
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 dam west abutment showing embankment material in place, reservoir area & blanketing in vicintiy of dike.
photCL SCE 02 - 43626
Visual Materials
Portal Powerhouse - Forebay - View from dam west abutment showing embankment material in place, reservoir area & blanketing in vicintiy of dike.
photCL SCE 02 - 43627