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Mr. Gary Gleason, P.E. 10 January 17, 2001 <br /> , GME Project No. 9256 ' <br /> inches below finished floor elevation, provided that these footings would <br /> not be subjected to winter conditions during construction. <br /> At these depths of embedment, we anticipate that the footings would bear <br /> on compacted granular fill placed over a densified non-organic soil <br /> subgrade, or on the naturally-occurring soils having a minimum N-value of <br /> 6 blows per foot . We recommend that these footings be proportioned for a <br /> maximum allowable design bearing pressure of 2, 500 pounds per square foot <br /> to proportion the footing sizes . This refers to the pressure that may be <br /> transmitted to the bearing stratum in excess of the pressure from the <br /> surrounding depth of overburden. The factor of safety with respect to <br /> - soil bearing capacity for. this design would exceed 3 . <br /> We recommend that continuous wall footings have a minimum width of 2 feet <br /> and that isolated column footings have a minimum width . of 3 feet, to <br /> avoid excessively narrow footings, regardless of the contact pressure. <br /> With this design, we estimate that maximum building settlement would be <br /> about 1 inch, with differential settlement approximately half this <br /> amount, provided that the bearing soils are not soft, wet, disturbed,� or <br /> frozen at the time of construction. <br /> OME CONfULTANTf,INC. <br />