Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - View from east bank of tailrace channel - temporary diversion channel.
photCL SCE 02 - 43649
Visual Materials
Portal Powerhouse - Temporary diversion channel; stream gauger's cabin in background.
photCL SCE 02 - 43646
Visual Materials
Portal Powerhouse - Potter Creek channel used as temporary diversion. View from Hwy Bridge looking upstream.
photCL SCE 02 - 43647
Visual Materials
Portal Powerhouse - Starting to fill Potter Creek temporary diversion channel after returning tunnel flow to permanent tailrace.
photCL SCE 02 - 43686
Visual Materials
Portal Powerhouse - Water leakage through toe of tunnel dump fill between diversion ditch and powerhouse area during 490 c.f.s. flow.
photCL SCE 02 - 43299
Visual Materials
Portal Powerhouse - 400 cfs flow from side channel spillway entering tailrace from new diversion.
photCL SCE 02 - 43961
