Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Big Creek, Huntington Lake Dams - Portal Powerhouse - Construction progress of powerhouse structure.
photCL SCE 02 - 43753

Visual Materials
Portal Powerhouse - Placing concrete in supporting wall under end of 12' diameter pipe. Excavating old concrete anchor. [Forming new] foundation & Wye branch anchor.
photCL SCE 02 - 43529

Visual Materials
Portal Powerhouse - Preparing to start concreting back wall of powerhouse structure.
photCL SCE 02 - 43770

Visual Materials
Big Creek - Portal Powerhouse - [installing penstock split section modification.]
photCL SCE 06 - 46408

Visual Materials
Big Creek - Portal Powerhouse - [installing penstock split section modification.]
photCL SCE 06 - 46407

Visual Materials
Big Creek - Portal Powerhouse - [installing penstock split section modification.]
photCL SCE 06 - 46410