Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Starting reinforcing steel for upper portion of surge chamber structure.
- Date
- 9/22/1956
- Call number
- photCL SCE 02 - 44820
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Placing reinforcing steel for concrete disc, steel plate bulkhead.
photCL SCE 02 - 43901
Visual Materials
Portal Powerhouse - Placing reinforcing steel and forms for wye anchor.
photCL SCE 02 - 43769
Visual Materials
Portal Powerhouse - Outlet end and anchor on concrete overflow pipe from surge chamber.
photCL SCE 02 - 44819
Visual Materials
Portal Powerhouse - Progress: Forming and placing reinforcing steel for by-pass bend anchor.
photCL SCE 02 - 43741
Visual Materials
Portal Powerhouse - Excavating rock shot out of 15' plug. Left remaining at bottom of surge chamber shaft until after tunnel outage. D-4 [?] in tunnel loading into skip operated by Bay Cities Crane at top of shaft.
photCL SCE 02 - 44804
Visual Materials
Portal Powerhouse - Excavation for spill pipe of Surge Tank.
photCL SCE 02 - 44605