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~ , ~ <br />1.5.2 P.bbreviations <br />As used in these Guidelines, the following abbreviations shall <br />apply: <br />Ap Area of gravel pit at the high water <br />line, in square feet. <br />B Bottom width of channel, in feet. <br />Dso Median riprap particle size, in feet. <br />INV River or stream invert (i.e., thalweg). <br />L Length of the channel crossing between <br />two curves, in feet. <br />LH Horizontal spacing between jetties, in <br />feet. <br />Ln Meander length of two consecutive bends <br />and crossings, in feet. <br />Ls Length of side channel spillway ccest, in <br />feet. <br />Lsl Length of lateral berm spilla*ay, in feet. <br />Min Minimum <br />n Stability Factor <br />Nv7L Normal water level <br />UD6Fm GAVEL GUIDELINES 12/17/87 <br />1-7 <br />