, ▁a ▁wh olly ▁owned ▁ ▁subs idi ary ▁of ▁Drag ados , ▁S . A ., ▁the ▁construction ▁division ▁of ▁A CS ▁Group ▁of ▁Spain ; ▁and ▁T utor ▁Per ini ▁Corporation , ▁based ▁in ▁Syl mar , ▁California . ▁ ▁Hit achi ▁Z osen ▁held ▁a ▁completion ▁ceremony ▁for ▁the ▁machine , ▁performed ▁at ▁the ▁same ▁time ▁as ▁the ▁naming ▁ceremony , ▁in ▁Os aka , ▁Japan , ▁on ▁December ▁ 2 0 , ▁ 2 0 1 2 . ▁ ▁Test ▁assembly ▁and ▁sh aked own ▁on ▁Ber tha ▁in ▁Japan ▁indicated ▁issues ▁with ▁the ▁main - drive ▁unit ▁and ▁toler ances ▁that ▁required ▁rep airs ▁in ▁February ▁ 2 0 1 3 . ▁▁ ▁Ber tha ▁was ▁sh ipped ▁to ▁the ▁Port ▁of ▁Seattle ▁in ▁ 4 1 ▁sections , ▁arriv ing ▁on ▁April ▁ 2 , ▁ 2 0 1 3 . ▁ ▁Ber tha ▁had ▁a ▁special ▁pre - program med ▁mel ody ▁that ▁played ▁for ▁workers ▁inside ▁the ▁machine ▁and ▁those ▁monitoring ▁the ▁tunnel - bor er . ▁ ▁Ex c av ation ▁ ▁D edic ation ▁and ▁first ▁section ▁ ▁The ▁machine ▁began ▁exc av ation ▁of ▁the ▁ ▁route ▁on ▁July ▁ 3 0 , ▁ 2 0 1 3 , ▁with ▁completion ▁of ▁the ▁bore ▁scheduled ▁in ▁ 1 4 ▁months ' ▁time ▁and ▁the ▁tunnel ▁opening ▁to ▁traffic ▁in ▁December ▁ 2 0 1 5 . ▁Over ▁ 5 , 0 0 0 ▁members ▁of ▁the ▁public , ▁along ▁with ▁Governor ▁Jay