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Engineering Properties-Georgetown Area, Colorado, Parts of Clear Creek, Gilpin, and Park Counties <br />Soil Engineering Properties - Robert Fulton <br />Engineering Properties- Georgetown Area, Colorado, Parts of Clear Creek, Gilpin, and Park Counties <br />Map unit symbol and soil Depth USDA texture Classification Fragments Percentage passing sieve number- Liquid Plasticit <br /> <br />name y <br /> <br />Unified <br />AASHTO <br />>10 <br />3-10 <br />4 <br />10 <br />200 limit index <br /> inches inches [? T <br /> In Pct Pct Pct <br /> 10-21 *Very cobbly coarse sandy GP-GM, A-2, A-1 0-25 20-70 45-90 40-85 20-55 10-30 20-25 NP-5 <br /> loam, Sandy clay loam SM, i <br /> SP- <br /> SM, <br /> GM <br /> 21-30 *Very gravelly loamy GC-GM, A-1 0-25 0-25 35-55 30-50 15-40 0-15 20-25 NP-5 <br /> coarse sand, Very GM <br /> gravelly loamy sand, <br /> sandy clay loam <br /> 30-42 Wery gravelly loamy sand, GW-GM, A-1-a, 0-25 0-25 35-55 30-50 20-40 X 10-15 20-25 NP-5 <br /> Sandy clay loam GM A-1 -b <br /> 42-50 *Gravelly loamy sand, SPSM, A-2, A-1 0-10 0-10 60-80 55-75 30-55 10-20 20-25 NP-5 <br /> Sandy clay loam SM <br /> 50-62 *Very gravelly coarse GW-GM, A-1-a 0-25 0-25 35-55 30-50 15-30 0-15 20-25 NP-5 <br /> sandy loam GC- <br /> GM, <br /> GW, <br /> GM <br />Data Source Information <br />Soil Survey Area: Georgetown Area, Colorado, Parts of Clear Creek, Gilpin, and Park Counties <br />Survey Area Data: Version 7, Jan 30, 2008 <br />Natural Resources Web Soil Survey 12/28/2010 <br />Conservation Service National Cooperative Soil Survey Page 7 of 0