Visual Materials
Portal Powerhouse - Forebay
- Description
- Portal Powerhouse - Forebay - Loading tunnel muck for placement in dam downstream zone.
- Date
- 8/17/1955
- Call number
- photCL SCE 02 - 43629
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Forebay - Borrow area 3, source of tunnel muck for downstream zone of dam.
photCL SCE 02 - 43611
Visual Materials
Portal Powerhouse - Forebay - East portion of dam foundation showing contact between impervious zone, filter, & tunnel muck zone.
photCL SCE 02 - 43614
Visual Materials
Portal Powerhouse - Select tunnel muck filter zone blanket downstream portion of dam maximum section.
photCL SCE 02 - 43595
Visual Materials
Portal Powerhouse - Forebay - Dam foundation prepared for fill placement near west abutment.
photCL SCE 02 - 43582
Visual Materials
Portal Powerhouse - Portal Forebay - Downstream side of dam showing outlet end of 24" sluice pipe.
photCL SCE 02 - 43786
Visual Materials
Portal Powerhouse - Portal Forebay - Left end of dam from downstream side, showing spillway and pilot channel.
photCL SCE 02 - 43787