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Hart Ctowser <br /> J-344b-01 <br /> and organia will be required where appropriate. It is our <br /> understanding that no filling w�l be required to bring the site to grade. <br /> We make the following recommendadons: <br /> ► Before placing pavement subgrade or underslab capillary fill, <br /> compact the exposed subgade to a dense, non-yielding condidon. <br /> The subgade should be proof-rolled and any soft areas <br /> werexcavated to a depth of at ]east 2 feet and bac�lled with <br /> compacted structural fill as detv7ed under the section Slructu�n! <br /> Fill; and <br /> ► During periods of wet weather, limit equipment traffic on subgrades <br /> to reduce potential for disturbance. <br /> Shallow Foundation Desi�m <br /> We anticipate that all footings wIll bear on compacted in situ sand We <br /> make the following recommendations for design and construction of <br /> shallaw foorings for the structure: <br /> ► Embed aIl footings a minimum of 1S inches below ]owest adjacent <br /> grade; <br /> ► Design aIl isolated foodngs with a minimum dimension of 24 inches; <br /> ► Desig� all continuous footings with a minimum width of 18 inches; <br /> ► All fooUng can be designed for an allowab]e soII bearing pressure <br /> of 2,000 pounds ps� A one-third increase in allowable bearing <br /> pressure can be used to resist transient loads such as wind and <br /> seismic loads; • <br /> ► Ensure the footing subgade is in a dense unyielding condidon. If <br /> necessary, overexcavate soft footing subgrades and backfiil with <br /> s�uccural fll; <br /> ► For footing resistance to ]ateral load, we recommend using an � <br /> equivalent fluid to represent the passive resistance of the so�1. For a <br /> typical footing poured neatly against medium dense gzanular soi7, we <br /> Pa e 6. <br />