Visual Materials
Portal Powerhouse - Forebay
- Description
- Portal Powerhouse - Forebay - Foundation excavation at location for sluice pipe, viewed from upstream.
- Date
- 7/20/1955
- Call number
- photCL SCE 02 - 43586
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Forebay - Sluice pipe viewed from upstream.
photCL SCE 02 - 43612
Visual Materials
Portal Powerhouse - Forebay - View from downstream of sluice pipe foundation excavation.
photCL SCE 02 - 43588
Visual Materials
Portal Powerhouse - Forebay - Sluice pipe and encasement viewed from downstream.
photCL SCE 02 - 43613
Visual Materials
Portal Powerhouse - Forebay - Foundation excavation in vicinity of sluice pipe. Picture covers from axis to upstream toe. Dragline excavating for impervious cut-off upstream from toe to lessen seepage.
photCL SCE 02 - 43310
Visual Materials
Portal Powerhouse - Forebay - Placing earthfill upstream from sluice pipe.
photCL SCE 02 - 43596
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