▁to ▁the ▁upper ▁San ▁Jo aqu in ▁River ▁from ▁the ▁Miller ▁and ▁Lux ▁Corporation . ▁During ▁that ▁year , ▁Hun ting ton ▁and ▁East wood ▁de vised ▁plans ▁to ▁util ize ▁the ▁water ▁of ▁the ▁San ▁Jo aqu in ▁River ▁and ▁some ▁of ▁its ▁head w aters ▁trib ut aries ▁in ▁what ▁would ▁become ▁one ▁of ▁the ▁most ▁extensive ▁hydro elect ric ▁systems ▁in ▁the ▁world , ▁known ▁as ▁the ▁Big ▁Creek ▁H ydro elect ric ▁Project . ▁ ▁Const ruction ▁of ▁the ▁system ' s ▁facilities , ▁which ▁included ▁M amm oth ▁Pool ▁and ▁Red inger ▁D ams ▁on ▁the ▁San ▁Jo aqu in ▁and ▁four ▁additional ▁res er voir s ▁on ▁its ▁trib ut aries ▁with ▁a ▁total ▁storage ▁capacity ▁of ▁, ▁started ▁in ▁ 1 9 1 1 . ▁A ▁total ▁of ▁eight ▁d ams ▁and ▁t unn els , ▁the ▁longest ▁of ▁which ▁st ret ches ▁, ▁and ▁nine ▁power h ouses ▁with ▁a ▁total ▁installed ▁capacity ▁of ▁ 1 , 0 1 4 ▁M W ▁were ▁built ▁in ▁stages ▁sp anning ▁the ▁ 2 0 th ▁century , ▁with ▁the ▁last ▁power house ▁coming ▁on ▁line ▁in ▁ 1 9 8 7 . ▁The ▁consistent ▁use ▁and ▁reuse ▁of ▁the ▁waters ▁of ▁the ▁San ▁Jo aqu in ▁River , ▁its ▁South ▁F ork , ▁and ▁the ▁names ake ▁of ▁the ▁project , ▁Big ▁Creek , ▁over ▁a ▁vertical ▁drop ▁of ▁, ▁have ▁over ▁the ▁years ▁inspired ▁a ▁nick name , ▁" The ▁Hard est ▁Working ▁Water ▁in ▁the