Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Tailrace channel from highway bridge. Approx. 1850 cfs flow from Ward Tunnel and Rancheria Creek.
- Date
- 5/22/1956
- Call number
- photCL SCE 02 - 44564
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - View from highway bridge showing excavation progress in tailrace channel section isolated by diverting flow into Potter Creek Tunnel.
photCL SCE 02 - 43562
Visual Materials
Portal Powerhouse - Channel below powerhouse structure, flow approx. 1800 cfs thru Ward Tunnel.
photCL SCE 02 - 43922
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 - Tailrace channel under highway bridge after 1800 cfs flows.
photCL SCE 02 - 43924
Visual Materials
Portal Powerhouse - Up tailrace channel from under highway bridge, after test flow.
photCL SCE 02 - 43909
Visual Materials
Portal Powerhouse - South side of channel, vicinity of highway bridge after 1100 cfs test flow.
photCL SCE 02 - 43905