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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 />40 <br />200 limit index <br /> inches inches <br /> to Pct Pct Pct <br />1-Arents-Dumps, mine <br />complex, 5 to 80 percent <br />slopes <br />Arents 0-24 Wery cobbly loamy coarse GP-GM, A-1-b, 0-25 20-70 45-90 40-85 25-65 5-25 - NP <br /> sand SM, A-1-a, <br /> GM, A-3, <br /> SW- A-2-4 <br /> SM, <br /> GW- <br /> GM, <br /> SP-SM <br /> 24-28 I *Gravelly sandy loam SC, SC- A-1, A-2 0-10 0-15 60-80 55-75 35-50 20-30 25-30 5-10 <br /> SM, <br /> GC, <br /> GC- <br /> GM <br /> * <br /> 28-33 Extremely cobbly loamy GW, GP, A-1-a, 030 30-85 20-80 15-75 1 10-55 0-20 - NP <br /> sand SW- A-1-b, <br /> SM, A-3, <br /> GM, A-2-4 <br /> GW- <br /> GM, <br /> GP, <br /> SP, <br /> SK <br /> SP-SM <br /> 33-60 *Extremely cobbly loamy GP-GM, A-1 0-30 30-85 20-80 15-75 10-50 0-10 <br />- NP <br /> sand SP, <br /> SP- <br /> SM, GP <br />Dumps, mine 0-60 *Fragmental material GW A-1 - 50-90 10-30 5-15 0-5 0 0-14 NP <br />Natural Resources Web Soil Survey 12128!2010 <br />Conservation Service National Cooperative Soil Survey Page 4 of 7