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Rio Blanco County Area, Colorado 197 TABLE 9.--ENGINEERING INDEX PROPERTIES --Continued Classification Frag- Percentage passing Soil name and IDepthl USDA texture I Iments I sieve number-- [Liquid I Plas- map symbol I I I Unified I AASHTO I> 3 I 1 limit I ticity I I I I linches l 4 1 10 1 40 1 200 1 1 index ` In Pct ct I I I 1 I 71 --------------I 0-17ILoam------------- ICL-ML I IA-4 I 1 0 I I I 195-100195-100185-95 I 160-75 1 20-25 1 5-10 edrob 117-351Stratified loam IML, SM IA-4 1 0-5 195-100190-95 165-85 135-60 1 20-25 1 NP-5 ' I I to loamy sand. I I I I I I I I I a; 135-601Very gravelly IGM, SM, IA-1 130-50 140-65 130-50 120-35 1 5-15 1 --- I NP I I sand, very I GP-GM, I I I I I I I I I I I I I I I I cobbly sand, I SP-SM I I I I very cobbly I I I I I [ I [ [ I I loamy sand. I I I I I I I I I I I I I I I I I 72---------------1 0-151Loam------------- ICL-ML I IA-4 I 10 I 195-100195-100180-95 155-70 1 20-25 1 5-10 Redrob Variant 115-601Stratified very IGP, SP, IA-1 115-30 145-65 135-55 115-25 1 0-10 1 --- I NP I I gravelly loamy I SP-SM, I I I I I I I I I I sand to cobbly I GP-GM I I I I I I I I I I sand. I I I I I I I I I I I I I I I, I I I 73 --------------- I 0-5 IChannery loam----ISM, ML, I GMIA-4 I I 0-15 I 170-85 160-75 145-65 135-55 115-25 I NP-5 Rentsac 1 5-161Very channery ISM, GM IA-2, A-4,115-50 140-75 130-65 115-45 I10-40 115-25 1 NP-5 I I loam, very I I A-1 I I I I I I I I I channery sandy I I I I I I I I I I I loam, very I I I I I I I I I I I flaggy loam. I I I I I I I I I 1 16 (Unweathered I --- I -- - I--- I--- I--- I--- I--- I--- I --- `^ I I bedrock. I I I I I I I I I I I I I I I I I I I I 74*: 1 1 I Rentsac --------- 1 0-5 IChannery loam----ISM, ML, I GMIA-4 I 1 0-15 I I 170-85 160-75 I 145-65 I 135-55 I 1 15-25 f 1 NP-5 15-161Very channery ISM, GM IA-2, A-4,115-50 140-75 130-65 115-45 Ilo-4o 1 15-25 1 NP-5 I I loam, very I I A-1 I I I I I I I I I I I channery sandy I I I I I I I I I I I loam, very I I I flaggy loam. I I I I I I I I I I I I I I I I 1 16 (Unweathered I --- I -- - I--- I--- I--- I--- I--- I--- --- I I bedrock. I I I I I I I I I a's I I I Moyerson-------- 1 0-2 IStony clay loam--ICL I IA-6, I A-7 110-25 I I 180-95 175-90 I 160-80 I 150-75 I 1 35-45 I 115-25 ?y 12-171C1ay loam, clay ICL, CH IA-7 1 0-10 180-95 175-90 170-85 160-80 1 40-55 1 20-30 1 17 (Weathered bedrockl --- I I I I -- I - I --- I I --- I --- I I I --- I I --- I I --- I I I g:. Rock outcrop. I I I I I I I I I I I I I I I I I I I I I I 75*: I I I Rentsac --------- 1 0-5 IChannery loam----ISM, ML, I GMIA-4 I 1 0-15 I I 170-85 160-75 I 145-65 I 135-55 I 1 15-25 2 I 1 NP-5 1 NP 5 15-161Very channery ISM, GM IA-2, A-4,115-50 140-75 130-65 115-45 110-40 5 1 15- - I I loam, very I I A-1 I I I I I I I I I I I channery sandy I I I I I I I I I I 1 I loam, very I I I I I I I I I I flaggy loam. I I I I I I I I I -_- 1 16 (Unweathered I --- I - -- I--- I--- I--- I--- I--- --- I I Piceance- • I bedrock. I I 1 0-4 (Fine sandy loam 14-221Loam, sandy clay I I loam, clay loam 122-301Channery sandy I I loam, channery I I I I I I I I I I I I I I IML, SM IA-4 1 0 185-100180-100175-90 [40-65 ICL, CL-ML,IA-4, A-6 I 0 180-95 175-90 160-80 140-70 1 SC, SM-SCI I I I I I IGM, GM-GC ,IA-2 A-1,1 0-5 155-80 150-75 140-60 115-45 1 SM, SM-SCI A-A I I I I I I I loam, channery I I sandy clay loam.l 1 30 (Weathered bedrockl --- I 1 1 76---------------1 0-241Loam-------------- ICL, CL- Rhone 124-501Channery sandy IGM-GC I I clay loam, very I I channery sandy I I I clay loam, very I I I channery loam. I 1 50 (Unweathered I --- I I bedrock. I I I I See footnote at end of table. I I I I I I ML IA-4, A-6 1 0 190-100180-95 170-90 150-70 IA-2 I 0-10 145-60 140-55 130-50 115-35 I I I I I I I I I I I I I I I I I I 20-35 1 5-15 1 15-30 1 NP-10 I I I 20-35 1 5-15 20-30 1 5-10 I I I I