Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Portal Forebay - Close-up of 24" sluice pipe gate in place at upstream toe.
- Date
- 10/17/1955
- Call number
- photCL SCE 02 - 43788
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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 - 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 - Forebay - Preparation for rolling 24" diameter sluice pipe in place at forebay dam.
photCL SCE 02 - 43332
Visual Materials
Portal Powerhouse - Forebay - Sluice pipe viewed from upstream.
photCL SCE 02 - 43612
Visual Materials
Portal Powerhouse - Forebay - Placing earthfill upstream from sluice pipe.
photCL SCE 02 - 43596
Visual Materials
Portal Powerhouse - Forebay - Foundation excavation at location for sluice pipe, viewed from upstream.
photCL SCE 02 - 43586