Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Forebay - View from station 5+00, looking toward left abutment, showing outcroppings of ledge rock while excavating for upstream cutoff under impervious section.
photCL SCE 02 - 43311
Visual Materials
Portal Powerhouse - Forebay - View from right abutment showing site preparation for downstream rock fill portion of the dam.
photCL SCE 02 - 43306
Visual Materials
Portal Powerhouse - Forebay - Impervious fill upstream and start of rock fill in sluicepipe area of forebay dam.
photCL SCE 02 - 43322
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 - Completed concrete encasement around 24" diameter sluice pipe through rock fill downstream section.
photCL SCE 02 - 43536
Visual Materials
Portal Powerhouse - Forebay - Progress picture - excavating in upstream cut-off between sluiceway and left abutment.
photCL SCE 02 - 43316
