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U.S. DEPARTMENT OF AGRICULTURE PAGE 2 OF 2
<br /> M[RAL RESOURCES CONSERVATION SERVICE 01/28/97
<br /> 1 BUILDING SITE DEVELOPMENT
<br /> Inote -- BUILDING SITE DEVELOPMENT
<br /> This report shows the degree and kind of soil limitations that affect shallow excavations, dwellings with and without
<br /> �ements, small commercial buildings, local roads and streets, and lawns and Landscaping. The limitations are
<br /> ight", "Moderate", or "Severe". The limitations are considered "Slight" if soil properties and site features are
<br /> generally favorable for the indicated use and limitaions are minor and easily overcome; "Moderate" if soil properties
<br /> site features are not favorable for the indicated use and special planning, design, or maintenance is needed to
<br /> rcome or minimize the limitations; and "Severe" if soil properties or site features are so unfavorable or so
<br /> ficult to overcome that special design, significant increases in construction costs, and possibly increased
<br /> maintenance are required. Special feasibility studies may be required where the soil Limitations are severe.
<br /> ILLOW EXCAVATIONS are trenches or holes dug to a maximum depth of 5 or 6 feet for basements, graves, utility Lines,
<br /> open ditches, and other purposes. The ratings are based on soil properties, site features, and observed performance of
<br /> soils. The ease of digging, filling, and compacting is affected by the depth to bedrock, a cemented pan, or a very
<br /> m dense Layer; stone content; soil texture; and slope. The time of the year that excavations can be made is
<br /> a ected by the depth to a seasonal high water table and the susceptibility of the soil to flooding. The resistance of
<br /> the excavation walls or bands to sloughing or caving is affected by soil texture and the depth to the water table.
<br /> ILLINGS AND SMALL COMMERCIAL BUILDINGS are structures built on shallow foundations on undisturbed soil. The load
<br /> limit is the same as that for single-family dwellings no higher than three stories. Ratings are made for small
<br /> Ierciat buildings without basements, for dwellings with basements, and for dwellings without basements. The ratings
<br /> based on soil properties, site features, and observed performance of the soils. A high water table, depth to bedrock
<br /> or to a cemented pan, large stones, slope, and flooding affect the ease of excavation and construction. Landscaping
<br /> LIgrading that require cuts and fills of more than 5 or 6 feet are not considered.
<br /> AL ROADS AND STREETS have an all-weather surface and carry automobile and light truck traffic all year. They
<br /> have a subgrade of cut or fill soil material, a base of gravel, crushed rock, or stabilized soil material, and a
<br /> Ixible or rigid surface. Cuts and fills are generally properties, site features, and observed performance of the
<br /> Is. Depth to bedrock or to a cemented pan, a high water table, flooding, large stones, and slope affect the ease of
<br /> excavating and grading. Soil strength (as inferred from the engineering classification of the soil), shrink-sweLL
<br /> IentiaL, frost action potential, and depth to a high water table affect the traffic-supporting capacity.
<br /> LAWNS AND LANDSCAPING require soils on which turf and ornamental trees and shrubs can be established and
<br /> tained. The ratings are based on soil properties, site features, and observed performance of the soils. Soil
<br /> tces,
<br /> tion, a high water table, depth to bedrock or to a cemented pan, the available water capacity in the upper 40
<br /> and the content of salts, sodium, and suLfidic materials affect plant growth. Flooding, wetness, slope,
<br /> stoniness, and the amount of sand, clay, or organic matter in the surface layer affect trafficabiLity after vegetation
<br /> i1established.
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