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<br />There are five units. They are: <br />o Nihill channery loam, 1 to 6 percent slopes <br />o Nihill channery loam, 6 to 25 percent slopes <br />o Detra channery loam, 6 to 25 percent slopes <br />o Alluvial land; wet <br />o Disturbed land <br />The Nihill channery loam, 1 to 6 percent, occurs in the alfalfa <br />meadow. It is by far the largest soil unit that will be affected. <br />The Nihill channery loam 5 to 25 percent occurs on the south <br />facing toe slopes. Detra channery loam 5 to 25 percent occurs <br />under the oak brrush on the north facing toe slopes. The alluvial <br />land wet occurs along the west fork of Parachute Creek and <br />contains the Typic Torrifluvent soils. Disturbed land occurs on <br />the road fill and where vegetation has been cleared. These units <br />are described in Table 2; they are not mapped for this project. <br />South Crossing <br />The soils of the south crossing are similar to those of the north <br />crossing. The principal unit is Nihill channery loam on 1 to 6 <br />percent slopes in the meadow. Small bodies of Nihill channery <br />loam on 6 to 25 percent slopes occur on the toeslopes on either <br />end of the alignment. Small bodies of Detra 6 to 25 percent <br />slopes occur under the oak brush on both creeks. Alluvial land <br />(with Typic Torrifluvents) occurs along the west and east forks of <br />Parachute Creek. Small areeas of disturbed land occur in the <br />meadow along ditches and near the major road fills. <br />SOIL SUITABILITY FOR TOPSOIL <br />Soil Chemical and Physical Properties <br />Laboratory analyses for chemical and physical properties are being <br />conducted by Colorado Agricultural Consultants of Brighton, <br />Colorado, in July, 1981. The samples tested were collected from <br />the described pedon of Nihill. The detailed pedon description is <br />in the Appendix. It was described and sampled in a hand-dug pit. <br />The other soils were rated from field observations and SCS data. <br />The results of the soil chemical and physical testing are not <br />available at this time. When the results are available, they will <br />be used to support these recommendations. It is possible, but not <br />likely, that the recommendations for use of the Nihill soils in <br />the north crossing area will not be supported by the laboratory <br />analytical data. <br />