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56 SOIL SURVEY <br /> TABLE 5.Engineering <br /> Suitability as a source of— <br /> Soil series and map symbols Highway location <br /> Topsoil Sand Gravel Road fill <br /> Cerro (CcB, CcC)--------------- Fair------- Fair if washed Good if washed Fair to good---- Good stability and bearing <br /> and screened. and screened. value;well drained. <br /> Chacra (M kA). (For Menoken Fair--_----- Unsuitable------ Unsuitable------ Fair to poor-_--- Poor stability and bearing <br /> part of MkA, see Menoken value; high in gypsum; <br /> series.) moderately shallow to <br /> shale. <br /> Chipeta: <br /> Silty clays (CeA, CeB, ChC, Poor------- Unsuitable_-_--_ Unsuitable--_-__ Poor----------- Poor stability and bearing <br /> ChC2, CkC, CIC). (For value;shallow to shale. <br /> Persayo part of ChC, ChC2, <br /> CkC, and CIC. see Persayo <br /> series;for Mesa part of <br /> CkC, see Mesa series;and <br /> for Ranee part of CIC,see <br /> Rance series.) <br /> Christianburg (CmA, CmC)---_-- Poor------- Unsuitable------ Unsuitable------ Poor----------- Poor stability and bearing <br /> value;high shrink-swell <br /> potential. <br /> Colona: <br /> Clays (CoA, CoC)------------- Poor------- Unsuitable---__- Unsuitable--_-_- Poor----------- Poor stability and bearing <br /> value. <br /> Clay, gravel substratum (CSA). Poor------- Fair below Good below Poor to depth Poor stability and bearing <br /> depth of 36 depth of 36 of 36 inches. value. <br /> inches if inches if <br /> washed and washed and <br /> screened. screened. <br /> Doak: <br /> Clay loam (DoB)------------- Fair--_----_ Unsuitable--_-_- Unsuitable------ Fair------------ Fair stability and bearing <br /> value. <br /> Stony clay loam (DsC)-------- Poor------- Poor----------- Fair if washed Fair------------ Fair stability and bearing <br /> and screened. value. <br /> Fruita: <br /> Loam and clay loam (Fa A, Good------ Fair below Fair below Good---------- Good stability and bearing <br /> FbC). depth of 30 depth of 30 value;well drained. <br /> inches if inches if <br /> washed and washed and <br /> screened. screened. <br /> Fruitland: <br /> Fine sandy loams and sandy Good------ Fair if washed Fair if washed Good---------- Good stability and bearing <br /> clay loams (FrA, FrB, Fs A, and screened. and screened. value;well drained. <br /> Fs B). <br /> Sandy clay loams, stony sub- Good------ Fair if washed Fair if washed Good---------- Good stability and bearing <br /> stratum (Ft A, FtB). and screened. and screened. value;well drained. <br /> 14 �f z l <br />