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<br />I <br /> <br />ENGINEER MANUAL <br /> <br />EM 1110-2-2902 <br />3 MAR 1969 <br /> <br /> <br />.; <br /> <br />1- <br /> <br />,; <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />" <br /> <br />I.. <br /> <br />ENGINEERING AND DESIGN <br /> <br />(Change 1 dtd 28 July 70, <br />Change 2 dtd 16 April 71 and <br />Change 3 dtd 30 November 78 <br />have been inserted in this <br />reprint) <br /> <br />CONDUITS, CULVERTS AND PIPES <br /> <br /> <br /> <br />I <br />I <br /> <br />HEADQUARTERS, DEPARTMENT OF THE ARMY <br />OFFICE OF THE CHIEF OF ENGINEERS <br />