Timeline of Hetch Hetchy water and power system (1914-1934)

1914-1934: Building the Hetch Hetchy system   1919-1923- Hetch Hetchy Reservoir built 1921-1925- Moccasin Powerhouse, tunnel and penstocks built 1930- San Francisco purchases Spring Valley Water Co. for $40 million 1934- First Hetch Hetchy water [...]

Timeline of Hetch Hetchy water and power system (1906-1913)

1906 – 1913: Securing water rights in the high Sierra   1910- San Francisco voters pass $45 million bond measure to build water system 1912- Preliminary design for Hetch Hetchy system; Michael O’Shaughnessy hired as [...]

Timeline of Hetch Hetchy water and power system (1850-1906)

1850 – 1906: A growing city needs a reliable water supply   1899- US Geological Survey recommends Tuolumne river as water source 1906- San Francisco earthquake and fire 1906-1913: Securing water rights in the high [...]

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Three bin recycling

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