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<br />""'" <br /> <br />~ <br /> <br />If' <br />C'J <br />C <br /> <br />r <br /> <br />UNITED STATES <br />DEPARTMENT OF THE INTERIOR <br />HAROLD L. ICKES, Secretary <br /> <br />BUREAU m' RECLAMATION <br />JOHN C. PAGE, Commissioner <br />S. O. HARPED, Chief Engineer <br /> <br />BOULDER CANYON PROJECT <br />FINAL REPORTS <br /> <br />PART V-TECHNICAL INVESTIGATIONS <br /> <br />Bulletin 5 <br /> <br />PENSTOCK ANALYSIS <br />AND STIFFENER DESIGN <br /> <br /> <br />/iI~\ <br />~a <br />LIIAIt CArmLKYllI <br />D~TIII_ ITII'" <br /> <br />DENVER, COLORADO <br />1940 <br />