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
Power tunnel construction for Powerhouse #4 project. Men and heavy equipment in tunnel.
photCL SCE 05 - 53613

Visual Materials
Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [equipment for excavation of Power Tunnels]
photCL SCE 02 - 41901

Visual Materials
Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [substation transformers for equipment to excavate Power Tunnels]
photCL SCE 02 - 41902

Visual Materials
Big Creek tour group riding rail cars through the Big Creek Powerhouse #4 power tunnel.
photCL SCE 05 - 54317

Visual Materials
Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel office. [Inlet portal for Power Tunnel #2]
photCL SCE 02 - 42399

Visual Materials
Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel office. Posted notice showing progress on Power Tunnel #1.
photCL SCE 02 - 42152