Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Big Creek 2A - pipe fabrication (3589-A) at Midvale Steel Co. in Pennsylvania. [machining high-tensile steel penstock to design thickness]
photCL SCE 02 - 22945
Visual Materials
Big Creek 2A - pipe fabrication (3651-A). Completed section of forged steel pipe with bolted flanged joints for Powerhouse 2A penstock. Largest sections were 66" inside diameter with 3" wall thickness, and 23 feet in length, weighing 27 tons. Picture taken in plant at Midvale Company.
photCL SCE 02 - 22943
Visual Materials
Big Creek - Powerhouse #2 & 2a (part 3) [Construction at Powerhouse 2A, manufacturing photos showing the fabrication of seamless steel pressure pipe [penstock] sections, forging hollow steel blocks into pipe, machining seamless steel pipe sections to proper thickness, pressure testing pipe sections, assembly of penstock sections and valves at PH 2A.]
photCL SCE 13 - vol 031
Image not available
Visual Materials
Photographs of Powerhouse 2 and 2A, Part Three. Construction at Powerhouse 2A, images depicting the fabrication of seamless steel pressure pipe [penstock] sections, forging hollow steel blocks into pipe, machining seamless steel pipe sections to proper thickness, pressure testing pipe sections, assembly of penstock sections and valves at Powerhouse 2A.
photCL SCE
Visual Materials
Big Creek 2A - pipe [penstock] fabrication (2652-A) at the Midvale Steel Mill in Pennsylvania.
photCL SCE 02 - 22944
Visual Materials
Big Creek PH 2A - "Y" branch penstock section for Pelton leg.
photCL SCE 02 - 22935