Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Potter Creek channel used as temporary diversion. View from Hwy Bridge looking upstream.
- Date
- 8/11/1955
- Call number
- photCL SCE 02 - 43647
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 showing lower end of Potter Creek diversion returning to main channel just upstream from highway bridge.
photCL SCE 02 - 43303
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 - Start of tailrace excavation at lower end. View taken thru channel span of State Hwy. Bridge.
photCL SCE 02 - 43569
Visual Materials
Portal Powerhouse - View from east bank of tailrace channel - temporary diversion channel.
photCL SCE 02 - 43649
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 - Temporary diversion channel on east side of powerhouse. Small left channel carries leakage water from east embankment.
photCL SCE 02 - 43853