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<br /> <br /> <br />,#" <br />.,1 <br />-, <br />.'--- <br />.~~t~. . <br />.... .... <br />.~. .. <br />... <br />ji.-~" ~~ <br /> <br />Ir- <br />,~ <br />,- <br />. . . ~ <br /> <br />. <br /> <br />~ <br /> <br />. <br /> <br />Excavation tor three 78-inch penstock lines to brint:' waiN from Prosppct Mountain Tunnel to E~es <br />Powerplant on Colorado-Bie Thompson Projl"("t. This job was 26 per cenl complf'te in Ju.ne 1948. <br />Pilot<> ~, 08BR <br /> <br /> <br />....," <br /> <br />~':~~~... ''V ~ <br />'--:-.t ,,~~- <br />. .-..... . . <br />,'""".1. . <br />.."',,.~;;.- .- <br />~ .~-~~-'"': <br /> <br />-.;... <br /> <br />i.~'- - <br />-; ~: <br /> <br />Gen('ral view, lookinc upstream. showine progress on construction of cate <br />5lructure at outl.., portal of ProsPE'<"t Mountam Tunnel and vent pi~s ex- <br />tendmg from tht' ,_tehouse to top of surge tank. Jun. 1949. This work is 67 <br />per cent ('omplett'. <br /> <br />PbOl.clb1 tl'SBR <br /> <br />