environmental assessment for the hog lake road improvement project
environmental assessment for the hog lake road improvement project
environmental assessment for the hog lake road improvement project
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Ramona Hog Lake Road Improvement Project August 2011<br />
Mottsville sandy loam at 2 to 8 percent slopes (MsC) underlies <strong>the</strong> entire Project<br />
area. Mottsville soils are located on alluvial fans, fan remnants and fan aprons.<br />
These soils <strong>for</strong>med in alluvium derived from granitic rocks. Mottsville soils are<br />
excessively drained, have negligible or very low surface runoff and rapid or very<br />
rapid permeability. No effect would be anticipated with respect to expansive soils.<br />
Used mostly <strong>for</strong> grazing, <strong>the</strong> soils may also be used <strong>for</strong> dry-farmed small grain and<br />
irrigated peaches, apples, and alfalfa. Typical vegetation associated with this soil<br />
includes mainly big sagebrush, antelope bitterbrush, Anderson's peachbrush, and<br />
needlegrasses.<br />
While sandy loam soils may not readily compact, <strong>the</strong>y are easily eroded, especially<br />
on a slope or where vegetation has been lost. These sandy soils have a high erosion<br />
risk. Presently existing drainage and erosion problems will be corrected by installing<br />
berms, downdrains and rip-rap energy dissipaters.<br />
Frank Springer & Associates, Inc. Page 69 of 79 Environmental Assessment
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