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, <br /> ' - - - <br /> AET #20-01080 - Page 13 <br /> ' <br /> ' We refer you to the standard data sheets entitled "Basement/Retaining Wall Backfill and Water <br /> Control" and "Freezing Weather Effects on Building Construction" at the end of this report for <br /> ' more details concerning preferred soil types, frost considerations, lateral loads, draintiles, and <br /> water control. <br /> ' <br /> , Site Drainage <br /> Site grades should be sloped and maintained to shed any rainwater or snow melt away from critical <br /> building or pavement areas, and prevent ponding of water on the site. Infiltration of ground water <br /> ' e soils will increase water contents and can result in weakening of subgrade soils. <br /> uito the subgrad <br /> ' This could potentially lead to increased frost heaving problems in pavement and sidewalk areas <br /> if not corrected. <br /> ' <br /> Any pavements, sidewalks, and exterior slabs should be designed with positive slopes for surface <br /> , drainage of rain water and snow melt. These azeas should also be maintained after construction <br /> to allow continued drainage• <br /> 1 <br /> CONSTRUCTION CONSIDERATIONS <br /> 1 . <br /> ' Potential Construction Difficulties <br /> Disturbance of Soils <br /> ' Most of the soils at this site can become disturbed under repeated construction traffic, especially <br /> if they are wet. Loss of soil strength andlar stability is also likely. If these soils become <br /> ' disturbed, they should be subcut to the underlying undisturbed soils and replaced; or they can be <br /> scarified, dried, and recompacted back into place. <br /> ' . �.:,` <br /> ; <br /> ' ` <br /> , � <br />