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<br />66 ~ SO1L SURVEY • <br />TABLE 6.-Engineering <br /> <br />l <br />S Suitability ns source of- Soil features affecting- <br />oi <br />series <br />and map symbols Topsoil Suml and gravel Road fill Ponds and Embankments, <br /> reservoirs dikes, and levees <br />Jerry: ]eE ........ .. .............. Fair: heavy clay Unsuitable: fine- Poor: A-7; Slope is 5 to 30 Moderate shrink- <br /> loam at a depth grained ma- plastic clay; .percent. swell potential; <br /> of 11 inches. terial, moderate poor compaction <br /> shrink-swell characteristics. <br /> potential. <br />°Kezar: I(<E .......... ....... _... Poor: high gravel Unsuitable: bed- Poor: bedrock at Permeability Cood stability; <br />For Cathedral part of content. rock at a depth a depth of 20 to greater than 2.0 moderately to <br />KcE, see Cathedral of 20 to 40 40 inches. inches per hour; highly pervious. <br />series. ~ inches. slope is 5 to 35 <br /> percent; bedrock <br /> at a depth of <br /> 20 to 40 inches. <br />Kubler: xvE ............ ........ Fair: gravelly; Unsuitable: fine- Poor: A-7; plas- Slope is 5 to 35 Ponr compaction <br /> clay at a depth grained ma- tic clay; high percent. characteristics; <br /> of l0 inches. terial, shrink-swell high shrink- <br /> potential. swell potential. <br />Leaps: teE ........................ Fair: 10 inches of Unsuitable: fine- Poor: A-7; high Slope is 5 to 30 Poor compaction <br /> silty clay loam grained ma- shrink-swell percent. characteristics; ~ <br /> over silty clay. terial. potential; high shrink- <br /> plastic clay. swell potential. <br />•Lucky: thF ......-._.._........ Poor: ]5 to 20 Unsuitable: bed• Unsuitable: A-2; Slope is 5 to 45 Bedrock at a depth <br />For Cheadle part of percent gravel. rock at a depth bedrock at a percent. of 20 to 40 <br />thF, see Cheadle of 20 to 40 depth o[ 20 to 40 inches. <br />series. inches; execs- inches. <br /> _ sive fines. <br />Meredith: MeF ... .. Poor: very stony Unsuitable: ex- Poor: excessive Slope is 8 to 50 35 to 70 percent <br /> and gravelly; cessive stones. stones. percent; mod- stones. <br /> strongly acid. crate perme- <br /> abilit . <br />Mergel ...... ....... ............... Poor: gravelly Yoor for gravel; Good: A-1; cob- Slope is 5 to 45 Low compressibil- <br />. Pped only with excessive fines. blestones may percent; mod- itr; medium <br />Partin soils. be present. erately rapid con:-ac!^_d per- ' <br /> permeability. meability; me- <br /> dium piping po- <br /> tential. <br />Mord: MoE ....... ... ..... Fair: 5 to 15 per- Unsuitable: fine- Poor: A-6 and Slope is 5 to 30 Clayey material; <br /> cent gravel and grained ma- A-7; moderate percent. poor compaction <br /> cobblestones. !. terial. shrink-swell characteristics: <br /> potential; low <br /> shear strength. <br /> i <br />Morop: MrE ....... ............... Yoor: stony..'•~ Unsuitable: fine- Poor: A-4; high Slope is 5 to 40 Low compressibil- <br /> grained ma- shrink-swell po- percent. ity; piping <br /> terial; stony. tential; low hazard. <br /> shear strength. <br />l;utras: NuF ~ ....... .. ....... Poor: stony...... Unsuitable: fine- Poor: A-7; mod- Slope is 5 to 90 Clayey material; i <br /> grained ma- crate shrink- percent. low compress- <br /> <br />terial; stony. <br />swell potential; i <br />ibility; 25 to 55 <br /> low stability; 25 ~ percent stones. , <br /> to 55 percent <br /> stones. <br />•Partin: FhF, PmF ..............._.. Poor: 30 percent Unsuitable: fine- Poor: A~1 to Slope is 5 to 45 Medium compres- <br />For Hopkins part of stone fragments. grained ma- Ate; 40 to 80 percent; very sibility; material <br />FhF, see Hopkins terial; stony. percent stones stony below a limited by high <br />series. For Mergel below a depth of depth of 31 stone content <br />part of FmF, see ~ 31 inches. inches. below a depth of <br />Mergel series. ~ 31 inches. <br />