Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Lowering grade in diversion channel lower Rancheria Creek section
- Date
- 8/8/1955
- Call number
- photCL SCE 02 - 43540
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Progress picture - Excavation in diversion channel to Rancheria Creek.
photCL SCE 02 - 43273
Visual Materials
Portal Powerhouse - Flow down diversion channel from 12' pipe to Rancheria Creek during 490 c.f.s. test flow.
photCL SCE 02 - 43300
Visual Materials
Portal Powerhouse - View of tunnel diversion during test flow of 490 cfs. Flow in diversion ditch from 12' pipe to junction with Rancheria Creek channel.
photCL SCE 02 - 43297
Visual Materials
Portal Powerhouse - View down Rancheria Creek channel - first diversion - 250 cfs - 8:00 a.m..
photCL SCE 02 - 43284
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 - Channel cut in decomposed granite at outfall from Rancheria Creek to tailrace channel.
photCL SCE 02 - 43729