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 - 400 cfs flow from side channel spillway entering tailrace from new diversion.
photCL SCE 02 - 43961
Visual Materials
Portal Powerhouse - Discharge at side - channel spillway at approximately 1500 cfs flow thru tunnel.
photCL SCE 02 - 43918
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 - Portal Forebay - Left end of dam from downstream side, showing spillway and pilot channel.
photCL SCE 02 - 43787
Visual Materials
Portal Powerhouse - Flow test - Uncompleted penstock flow approximately 1300 cfs.
photCL SCE 02 - 43876
