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
Portal Powerhouse - Potter Creek culvert washed out.
photCL SCE 02 - 44002

Visual Materials
Portal Powerhouse - North - Shows erosion damage to road. Camp Creek west channel eroded 10' deep by 25' wide, 60" culvert washed 30' downstream.
photCL SCE 02 - 43946

Visual Materials
Portal Powerhouse - Potter Creek undermined 2 to 5 feet.
photCL SCE 02 - 44001

Visual Materials
Portal Powerhouse - Extent of washing due to high water in Potter Creek.
photCL SCE 02 - 44559

Visual Materials
Portal Powerhouse - Diverting tunnel flow from Rancheria Creek channel across main channel and into Potter Creek channel.
photCL SCE 02 - 43308

Visual Materials
Portal Powerhouse - Undercutting of southwest abutment of Highway 168 bridge under Potter Creek
photCL SCE 02 - 43945