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GRAVEL <br />GRAINED <br />SOILS <br />IMORE THAN 50 % <br />RE7AINED ON <br />INO. 200 SIEVE <br />FINE- <br />GRAINED <br />SOILS <br />MORE THAN 50 % <br />I PASSES <br />NO. 200 SIEVE <br />UNIFIED SOIL CLASSIFICATION SYSTEM <br />MAJOR DIVISIONS <br />GRAVEL <br />MORE THAN 50 % <br />OF COARSE FRACTION <br />RETAINED ON <br />NO. 4 SIEVE <br />SAND <br />MORE THAN 50 % <br />OF COARSE FRqCTION <br />PASSES N0.4 SIEV[ <br />SILT AND CLAY <br />LIQUID LIMIT <br />LESS THAN 50 % <br />SILT AND CLAY <br />LI�UID LIMIT <br />50 °h OR MORE <br />HIGHLY ORGANIC SOILS <br />IIV V I CJ: <br />1) Field Gassifiwtion is based on visual <br />examinatlon of soll in general <br />Iaccordance wilh ASTM D 2488•93. <br />2) Soll Gassification using labratory lests <br />is based on ASTM D 2488-93. <br />I3) DesalpUons a( soil density or <br />conslstency are based on <br />inlerpretation ol blowcounl data, <br />visual appearance of soils, and/or <br />test data. <br />PROJECT NUh19ER <br />366502 Strickland/Nielsen <br />Figure 3 Soil Classification <br />CL�AN <br />GRAVEL <br />GRAVEL <br />WITH FINES <br />CLEAN <br />SAND <br />SAND <br />WITH FINES <br />INORGANIC <br />ORGANIC <br />INORGANIC <br />ORGANIC <br />GROUP <br />SYMBOL GROUP NAME <br />GW <br />GP <br />GM <br />GC <br />SW <br />SP <br />SM <br />SC <br />ML <br />CL <br />OL <br />MH <br />CH <br />OH <br />PT <br />WELL•GRADED, FINE TO COARSE GR4VEL <br />POORLY-GRADED GR4VEL <br />saTv cw�ve� <br />CLAYEYGRAVEL <br />WELL-GRADED SAND, FINE TO COARSE SAND <br />POORLYGRADEDSAND <br />SILTY SAND <br />CLAYEYSAND <br />SILT <br />CLAY <br />ORGANIC SILT, ORGANIC CLA <br />SILT OF HIGH PLASTICITY, ELASTIC SILT <br />CLAY OF HIGH PLASTICITY, FLAT CLqY <br />ORGANIC CLqY, ORGANIC SILT <br />PEAT <br />SOIL MOISTURE MODIFIERS: <br />Dry - qbsence o( rtrotsture, dusty, dry to <br />the touch � <br />Moist - Damp, bul no visible water. C <br />Wet - Visible free water or salurated, � <br />usually soli Is obtained 6om �J <br />below waler Wb�e g <br />� <br />0 <br />a <br />N�NELSON GEOTECHN�CAL No. Date Revision By CK s <br />ASSOCIATES, INC. <br />1 ��l �PM1�I ADJ DLM 8 <br />GEOTECHNICAL ENGINEERS & GEOLGGISTS c <br />,,,��.,,�,,....�..-'^� �..�.,�...,�`��) u,_,��o ry <br />1.:+1 �ee".�nci i �:`:e�-:s�o m«N.« (im) �e��nx b <br />......>a.e�.n� a <br />