Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Surge Tank excavation.
- Date
- 6/28/1956
- Call number
- photCL SCE 02 - 44602
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Excavation for spill pipe of Surge Tank.
photCL SCE 02 - 44605
Visual Materials
Portal Powerhouse - First stage of Surge Tank excavation. Rock near top is decomposed granite.
photCL SCE 02 - 44604
Visual Materials
Portal Powerhouse - Further excavation for Portal Powerhouse.
photCL SCE 02 - 43610
Visual Materials
Portal Powerhouse - Showing excavation for powerhouse building.
photCL SCE 02 - 43539
