Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Portal Powerhouse - 12' diameter pipe installed to reduce pressure at portal during high flows. At time, the lower baffle was still there at outlet restricting end area.
photCL SCE 02 - 43917

Visual Materials
Portal Powerhouse - Side spillway cut to relieve excessive back pressure during high flow. Final baffle now in place at end of penstock.
photCL SCE 02 - 43928

Visual Materials
Portal Powerhouse - Close-up of 1500 cfs discharge from end of by-pass pipe - unrestricted end area.
photCL SCE 02 - 43913

Visual Materials
Portal Powerhouse - 1500 cfs flow thru by-pass pipe with unrestricted end area.
photCL SCE 02 - 43912

Visual Materials
Portal Powerhouse - By-pass pipe after installation of three horizontal baffles. With flow of 1000 cfs, upper two baffles were lost, due to excessive vibration.
photCL SCE 02 - 43916

Visual Materials
Portal Powerhouse - Setting pump for the first pumping of pool at end of 12' diameter pipe.
photCL SCE 02 - 43309