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La Plata County Area, Colorado <br />- _ TABLE 15.--ENGINEERING INDEX PROPERTIES--Continued <br />• asst ica ion I raq- ' Percent <br />Soil name and iDepth` USDA texture ~ ments sieve <br />map symbol ~ + ( Unified ~ AASHTO ~ > 3 ~_-_._T•- <br />~ ( ~inches~ 4 ~ 10 <br />t In i ~ ~ ~ c <br />9*. <br />Badland <br />10, 11----------- <br />bapfield <br />12--------------- <br />Bayfield <br />13--------------- <br />_ Big Blue <br />14--------------- <br />Bodot <br />15*-------------- <br />Borohemists <br />16--------------- <br />Buckle <br />• <br />17--------------- <br />Chris <br />18---------------I <br />Clark Fork <br />19---------------' <br />Clayburn ` <br />• See footnote a <br />' 0-4 'Silty clay loam <br />~ 4-6O~Silty clay, silty <br />I i clay loam, clap. <br />~ 0-4 Silty clay loam <br />4-6OiSilty clay loam, <br />~ ( silty clap, <br />I I clay. <br />~ 0-4 Clap loam-------- <br />~ 4-6O~Clay loam, clap, <br />` silty clay. <br />~ 0-3 Clay------------- <br />3-33iClay, clay loam, <br />silty clay loam. <br />33 'Weathered bedrock <br />~ 0-24~Fibric material <br />`24-6OiClay, clay loam <br />~ 0-lO~Loam--------- <br />i10-38iClay loam, silty <br />clay loam. <br />138-6OiSilt loam, clay <br />loam, silty clay <br />~ loam. <br />~ 0-4 iVery stony loam <br />4-11'Gravelly clay <br />loam, gravelly <br />~ loam. <br />11-6OiVery gravelly <br />I clay, very <br />' gravelly clay <br />loam, very <br />cobbly clay. i <br />0-5 Very cobbly sandyi <br />~ loam. <br />5-2O~Extremely cobbly <br />~ loamy fine sand,l <br />i extremely cobbly+ <br />sandy loam, I <br />~ extremely ' <br />' gravelly sandy ' <br />loam. <br />20-6OiExtremely cobbly <br />` sand, extremely <br />' cobbly loamy ' <br />' sand. I <br />10-3~iClay loam, sandy ~ <br />clap loam. ~ <br />31-6O`Fine sandy loam, <br />loam. ' <br />` end of table. <br />JCL <br />iCL, CH ~A-7 <br />iA-7 <br />JCL <br />`CL, CH ~A-7 <br />iA-7 <br />~ <br />JCL <br />iCL, CH ~ <br />~A-6 <br />IA-7 <br />JCL <br />CH, CL ~A-7 <br />iA-7 <br />~ --- <br />ICL, CH iA-8 -- <br />IA-7 <br />~~ CL <br />iCL iA-6, A-7 <br />iCL, CL-ML ~A-6, A-7, <br /> ' A-4 <br />~CL-ML, iA-2, A-4 <br />GM-GC <br />CL, GC <br />iA-6 <br />GC iA-2, A-7 <br />GM, SM iA-2, A-1 <br />GM ~A-1 <br /> <br />GP-GM ~ ~ <br />~A-1 <br />CL-ML ~A-4 ~ <br />CL ~A-6 <br />2L-ML, iA-4 <br />SM-SC <br />~ ~ <br />0 <br />0 <br />~ 0 <br />~ 0 <br />~~ <br />0 <br />0 <br />0 <br />0 <br />i 0 <br />' 0 <br />~ 0 <br />0 <br />0 <br />115-35 <br />~ 5-15 <br />'10-40 <br />' 100 <br />90-10( <br />~ 100 <br />~ 90-10( <br />9G-1 OC <br />9O-lOC <br />X90-100 <br />9O-100 <br />~ --- <br />95-100 <br />~ 100 <br />100 <br />i 100 <br />165-85 <br />~ 55-80 <br />25-60 <br />' 100 <br />i ~ 85-10( <br />' 100 <br />85-10( <br />X90-lOC <br />90-10( <br />X90-100 <br />X85-100 <br />--- <br />~ --- <br />'95-100 <br />~ 100 <br />100 <br />i 100 <br />~ 60-80 <br />50-75 <br />20-50 <br />30-55 145-65 '40-60 <br />45-70 40-60 135-55 i <br />~ ~ <br />~ ~ ~ <br />45-70 ~30-50 l20-40 ~ <br />21 <br />' 95-10( <br />~ i 80-10( <br />X95-lOC <br />8O-lOC <br />X80-95 <br />X80-100 <br />X80-100 <br />8O-100 <br />~ __- <br />190-100 <br />X85-95 <br />9O-100 <br />185-100 <br />145-70 <br />45-65 <br />20-50 ~ <br />'Liquid ' Plas• <br />T-) limit ( ticii <br />~ 200 ~ ~ indet <br />x'80-95 <br />175-95 <br />X80-95 <br />~75-95 <br />X65-75 <br />~70-85 <br />X75-95 <br />i75-95 <br />~ --- <br />~ --- <br />175-95 <br />X65-85 <br />7O-85 <br />X70-90 <br />' 40-50 <br />40-60 <br />~ 40-50 <br />40-60 <br />30-40 <br />40-55 <br />40-45 <br />40-60 <br />40-60 <br />20-30 <br />25-45 <br />20-45 <br />30-60 <br />35-60 <br />15-45 i; <br />25-30 i <br />25-40 <br />40-60 ~ <br />25-55 110-30 i 15-20 <br />20-50 X10-25 ~ 15-20 <br />~ ~ <br />10-35 ~ 5-10 ~ --- <br />NP-5 <br />NP-5 <br />NP <br />0-5 '90-100'80-95 X70-90 X50-65 ~ 20-30 ~ 5-10 <br />5-10 190-100180-95 175-90 155-77 + 30-40 ' 10-15 <br />0-5 X80-95 X75-90 60-75 40-60 ~ 20-30 ~ 5-10 <br />May 1994 <br />