Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Photo taken shortly after break-through of diversion ditch seepage into tailrace to south of Powerhouse.
- Date
- 11/21/1955
- Call number
- photCL SCE 02 - 43932
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - South bank of powerhouse excavation with considerable seepage from tunnel diversion.
photCL SCE 02 - 43528
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 - Continuance of washing daused by break-through of seepage water from diversions. Discharge was reduced to eliminate auxiliary spill in pipe.
photCL SCE 02 - 43962
Visual Materials
Portal Powerhouse - Deepening tailrace channel near powerhouse before end of outage and start of diversion thru by-pass.
photCL SCE 02 - 43801
Visual Materials
Portal Powerhouse - Upper end of tailrace channel before start of diversion from Florence Lake.
photCL SCE 02 - 43803
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