Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - excavating tailrace channel to final grade in section up-stream from Highway Bridge.
- Date
- 9/3/1955
- Call number
- photCL SCE 02 - 43689
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Portal Powerhouse - Record pictures of tailrace channel during outage: Up channel from below highway bridge.
photCL SCE 02 - 43795

Visual Materials
Portal Powerhouse - Up tailrace channel from under highway bridge, after test flow.
photCL SCE 02 - 43909

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 - Structure and tailrace channel from highway bridge.
photCL SCE 02 - 43774

Visual Materials
Portal Powerhouse - Tailrace channel downstream from deck of highway bridge.
photCL SCE 02 - 43925

Visual Materials
Portal Powerhouse - Tailrace channel under highway bridge after 1800 cfs flows.
photCL SCE 02 - 43924