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` V V <br /> UNIFIED SOIL CLASSIFICATION SYSTEM <br /> MAJOR DIVISIONS USCS TYPICAL <br /> SYMBOL DESCRIPTIONS <br /> GW WELL-GRADED GRAVELS,GRAVEL-SAND <br /> CLEAN GRAVELS : MIXTURES WITH LITTLE OR NO FINES <br /> GRAVELS WITH LITTLE <br /> OR NO FINES <br /> (More than half of o� GP MIXTURES WITH GRAVELS,RSAND <br /> LITTLE NO FINES <br /> M <br /> coarse fraction O <br /> is larger than <br /> the#4 sieve) GM SILTY GRAVELS,GRAVEL-SILT-SAND <br /> GRAVELS MIXTURES <br /> COARSE WITH OVER <br /> GRAINED - 12% FINES GC CLAYEY GRAVELS,GRAVEL-SAND-CLAY <br /> SOILS MIXTURES <br /> (More than half SW WELL-GRADED SANDS,SAND-GRAVEL <br /> of materialCLEAN SANDS MIXTURES WITH LITTLE OR NO FINES <br /> is larger than SANDS WITH LITTLE <br /> the#200 sieve) <br /> (More than half of OR NO FINES Sp POORLY-GRADED SANDS,SAND-GRAVEL <br /> coarse fraction <br /> is smaller than MIXTURES WITH LITTLE OR NO FINES <br /> the#4 sieve) <br /> SM SILTY SANDS,SAND-GRAVEL-SILT MIXTURES <br /> SANDS WITH <br /> OVER 12% FINES <br /> SC CLAYEY SANDS,SAND-GRAVEL-CLAY MIXTURES <br /> INORGANIC SILTS&VERY FINE SANDS, <br /> M L SILTY OR CLAYEY FINE SANDS, <br /> CLAYEY SILTS WITH SLIGHT PLASTICITY <br /> SILTS AND CLAYSINORGANIC CLAYS OF LOW TO MEDIUM <br /> CL <br /> PLASTICITY,GRAVELLY CLAYS,SANDY CLAYS, <br /> (Liquid limit less than 50) SILTY CLAYS,LEAN CLAYS <br /> FINE <br /> GRAINED _ ORGANIC SILTS&ORGANIC SILTY CLAYS <br /> SOILS OL OF LOW PLASTICITY <br /> (More than half MI„I INORGANIC SILTS,MICACEOUS OR <br /> of material DIATOMACEOUS FINE SAND OR SILT <br /> is smaller than <br /> the#200 sieve) SILTS AND CLAYS <br /> CH INORGANIC CLAYS OF HIGH PLASTICITY, <br /> (Liquid limit greater than 50) FAT CLAYS <br /> OH ORGANIC CLAYS&ORGANIC SILTS <br /> OF MEDIUM-TO-HIGH PLASTICITY <br /> HIGHLY ORGANIC SOILS " PT PEAT,HUMUS,SWAMP SOILS WITH HIGH <br /> db <br /> ORGANIC CONTENT <br /> e <br /> a' <br /> UNIFIED SOIL CLASSIFICATION SYSTEM PLATE <br /> K L E I N F E L D E R LODI GRADING AND PAVING <br /> 9167 E. FIRST STREET /� <br /> h - - VICTOR, CALIFORNIA A-1 <br /> m Drafted By: COG Project No.: 29556.G01 <br /> x Date: 11/6!2003 File Number: ST03G259 <br /> COWlgI,l NlalnleyM,lnu 2004 <br /> j <br />