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<br />o assume outlet loss coefficient of a full velocity of <br />flow through culvert due to right angle bend <br /> <br />o assume energy gradeline at culvert outlet coincides <br />with energy gradeline in median ditch <br /> <br />o head loss <br />through culvert = (1.5 X X .*2) + (Se X L) <br />2g <br /> <br />= 1.5 X G **2Xl + <br />A 2g <br /> <br />----.---.Q..----- -- <br />l~ia~ X A X 2/3 A <br />0.013 p <br /> <br />*,' 2XL <br /> <br />o see culvert rating calculations for both lO-lOX4 <br />cbc's and 13-16-13X4 cbc presented in Tables 1 and <br />2. <br /> <br />12 <br />