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<br />GRADATION CURVE <br />Sample 19+00 at Q-5 feet <br />100 <br />95 <br />90 <br />65 <br />80 <br />75 <br />~, 70 <br />w 65 <br />~ 60 <br />• 55 <br />50 <br />u" 45 <br />m 40 <br />35 <br />a 30 <br />25 <br />20 <br />15 <br />10 <br />5 <br />0 <br /> <br /> <br />_ • <br />• <br />l _l _L J <br />~ <br />l 1 _1 l <br />~ ~ ~ <br />J _l _L r 1 t J ; ; ; ; <br />_ <br />1 L _l _L <br /> • <br /> <br />_ • <br />t _l _L _4 ~ <br />L J u l 1. J <br />4 J l ._ ! l L _l__ _ <br />1 _t ,J l <br /> • <br />• <br />• <br /> <br /> <br />---- <br />gravel <br />~ ; ; <br />• <br />sand <br />-""" ; <br /> <br /> <br />• <br /> <br />silt ' ; :~ ' <br />~---• ---- i--"" - - <br /> <br /> <br /> <br /> <br />lay <br /> ; <br /> <br /> • <br /> <br />• ~ <br />• <br /> <br />~ • <br /> <br /> <br /> <br /> • <br />• <br /> • ~ <br /> <br /> <br />- • <br /> <br /> <br />----'-----`----'----- <br /> <br /> <br />--- `----'-----'-----`----'----- <br />; <br /> <br />-----`----'-----`----'-----'-----`----'---- <br /> <br />• • <br />'---- `----i--"--t-- <br />3 ~~ ------~----' ~ ------~--------- ~----~ <br /># --- ----- ---- ---- --- - ---- ---- <br />200 - --- ---- ----- -- <br />75 19.0 ~ 4.8 0.85 0.25 0.075 0.0416 0.0193 0.0083 0.0043 ~ 0.0022 <br />37.5 9.5 2.0 0.43 0.15 O.D571 0.0299 0.0115 0.0059 0.0030 0.0013 <br />Grain Size In Millimeters <br />• <br />