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TABLE 13-1 <br />Curve Number Table for Yoast <br />Cover Vegetation Hydrologic Soil Group <br />Type Condition Cover X A 8 C D_ <br />__ <br /> __ <br />_ <br />Aspen Undisturbed 30-70 48 57 63 <br /> 70-10D 30 41 48 <br />Mixed Brush Undisturbed 30-70 46 57 63 <br /> 70-100 30 41 48 <br />Sagebrush Undisturbed 30-70 51 63 70 <br /> 70-100 35 47 55 <br />Pasture Undisturbed 30-70 69 79 84 <br /> 70-100 67 74 80 <br />Rangeland Undisturbed 30-70 69 79 84 <br /> 70-100 61 74 80 <br />Western Wheatgrass/ Undisturbed 30-70 71 81 89 <br />Alkali Sagebrush 70-100 62 74 85 <br /> <br />Steep Mountain Brush <br />Undisturbed <br />0-70 <br />67 <br />77 • <br />83 <br /> 70-100 48 65 73 <br />Mesic Drainage Undisturbed 70-100 48 57 63 <br />Meatlow Undisturbed 0-70 69 79 84 <br />Rock Outcrop Undisturbed 98 <br />Water Unidsturbed 100 100 700 <br />Paved (Incl. R-O-W) Disturbed 98 <br />Gravel Roads Disturbed 85 89 91 <br />Dirt Roads Disturbed 82 87 89 <br />Facility Disturbed 85 89 91 <br />Topsoil Selvage Disturbed 85 91 94 <br />Spoil 86 91 94 <br />Graded Spoil Disturbed 86 91 94 <br />Bare Ground Disturbed 86 97 94 <br />Pit Disturbed 86 91 94 <br />Topsoil Replaced Reclaimed 0-30 76 80 84 <br />Revegetated Reclaimed 30-70 70 78 82 <br />Held for Release Reclaimed 7D-700 67 I4 80 <br />8 Revised 05/23/95 <br />