Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Tailrace channel excavation progress in section isolated by diverting tunnel discharge in Potter Creek Channel.
photCL SCE 02 - 43545
Visual Materials
Portal Powerhouse - Diverting tunnel flow from Rancheria Creek channel across main channel and into Potter Creek channel.
photCL SCE 02 - 43308
Visual Materials
Portal Powerhouse - Up tailrace channel from under highway bridge, after test flow.
photCL SCE 02 - 43909
Visual Materials
Portal Powerhouse - Tailrace channel excavation view from highway bridge. Boulders ready for shooting.
photCL SCE 02 - 43641
Visual Materials
Portal Powerhouse - Enlarging Potter Creek channel to handle tunnel flow during excavation of tail race channel.
photCL SCE 02 - 43302
Visual Materials
Portal Powerhouse - Starting to fill Potter Creek temporary diversion channel after returning tunnel flow to permanent tailrace.
photCL SCE 02 - 43686
