Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Ward tunnel diversion from Powerhouse construction.
- Date
- 7/28/1955
- Call number
- photCL SCE 02 - 43594
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Portal Powerhouse - construction with 440 cfs. diversion from Ward Tunnel.
photCL SCE 02 - 43761

Visual Materials
Portal Powerhouse - Start of diversion excavation. [exposing section of Ward Tunnel for diversion]
photCL SCE 02 - 43271

Visual Materials
Portal Powerhouse - Temporary flow diversion from 12' pipe [Ward Tunnel]. Flow about 425 cfs..
photCL SCE 02 - 43643

Visual Materials
Portal Powerhouse - Temporary flow diversion from 12' pipe [Ward Tunnel]. Flow about 425 cfs..
photCL SCE 02 - 43644

Visual Materials
Portal Powerhouse - Lower Portal release from Ward Tunnel prior to Portal Powerhouse construction.
photCL SCE 02 - 43268

Visual Materials
Portal Powerhouse - Opening in 12' pipe [near end of Ward Tunnel] for diversion.
photCL SCE 02 - 43281