History of California

Bwawa la O'Shaughnessy
Kazi ya ujenzi wa bwawa mnamo Agosti 1922 ©Image Attribution forthcoming. Image belongs to the respective owner(s).
1923 Jan 1

Bwawa la O'Shaughnessy

Tuolumne County, California, U
Mnamo 1923, Bwawa la O'Shaughnessy lilikamilishwa kwenye Mto Tuolumne, likijaza bonde lote chini ya Hifadhi ya Hetch Hetchy.Bwawa na hifadhi ni kitovu cha Mradi wa Hetch Hetchy, ambao mnamo 1934 ulianza kutoa maji maili 167 (km 269) magharibi hadi San Francisco na manispaa za wateja wake katika eneo kubwa la San Francisco Bay Area.

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