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� ^ <br /> � �� �� PLANNING <br /> ENGINEERING <br /> A MEMBER OF THE BERGER GROUP ENVIRONMENiAI <br /> 28 Mny 1993 <br /> Mr.Jeff McFall <br /> Public Works Department <br /> City of Everett <br /> 3200 Cedar Street <br /> Everett,WA 98201 <br /> � <br /> Subject: Foundation Revisions <br /> Group Health—Everett AMC <br /> 2930 Maple Street <br /> Everett,WA 98201 <br /> Dear Mr. McFall: <br /> Excavation at the construction site revealed that soil conditions are somewhat better than <br /> anticipated. Based on information obtained during the excavation,the soils consultant,RZA <br /> AGRA Inc.,has permitted a higher bearing pressure of 5000 pounds per square foot over <br /> most of thP site. See RGA AGRA fax of 26 May 1993,enclosed. <br /> Additionally, the owner Gmup Heelth Cooperative,has decided not to classify the facility as <br /> an easential facility. See letter from Group Health Cooperative endosed. This changes the <br /> Importance Factor I from 1.25 to 1.00 in the seismic load calculations. This change has the <br /> effect of reducing the design seismic load by 20 percent. <br /> It wae decided to redesign four large footinga,Types F5 and F6, to take advantage of these <br /> changea. Revisions to Sheets S.0.1 and S.4.1 and supporting calculations are enclosed. The <br /> footing redesign was done using a small computer program (pages 9 to 10,enclosed). The <br /> results of the computer program analysis were checked manually. <br /> Please give me or Jim Zusy a call ifyou have any questions. <br /> Sincerely yours, <br /> uc.e,k,�w L.ti/.:.� <br /> Michael W. LaNier <br /> Vice President <br /> MWL:tt <br /> Enclosures <br /> cc: Joe Nuenschwander <br /> Group Health Cooperative <br />, - ., – _ _ _ <br /> r��!�_ i_I � , ��n �,i, � ?�:oir ��in,:. ,�� � ��. r �i •. ,, V,� o�.; __, <br /> :Ud17_ 1 ,... :�I� -u ;9:i-bii��) .. oni.i I �G��'.. . . .. <br />` <br />