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GEOENGINEER� <br /> Junc 22, 2007 <br /> �G70�D 'fICJ <br /> I.�-0N Arcl�itccts <br /> SOl Srcond A��cnuc, Suitc iU 1 <br /> Sc;ittle, 1', aington 95104 <br /> Attcntiun: Gric Nothd�.irft <br /> Suhjcct: Supplcmcntal Gcutcchnical Rccummcndntiuns <br /> lJndcrgraduutc l:ducation Ccntcr <br /> I:��crctt Cummunity Coilcgc <br /> I'.ccrcll, \1'ashington <br /> GGI Pilc Na 5�33G-U05-00 <br /> I'his Icttcr prescnts supplementnl gcatcchnical cnginccring rccummcnd:i!ions Cur thc pruposed <br /> Undcrgruduatc Educatiun Ccntcr (UL:C) lucaicd at l:ccrcu Cummunity Collcgc in livcrctt, �Vashington. <br /> \1'c �ccrc rcqucstcd by 1.�A�1N Architcc(s to rl:iril��� thc rccommendr� 200(i II�C scismir drsi�;n p;trumctcrs <br /> and tu pru��idc rccommcndatiun� fur a permancnt cut slupc alung thc suutlt prupc«c lutc in hcu of :i <br /> pcnnancnt shoring wall. <br /> \\'c per(i�rmcd gcotcchnic;il ,crviccs li�r �lu l�[C, ihr rc�ulu ul ��hi,}i urc prescntcd in uur rcport, <br /> ,.Gcutccluiiad Gnginccring Scn�iccs, Propo,rd l�n�lcrpr�:idu:itc I�:due;iuun Crntcr, liccrctt Commiini�}� <br /> Collegc, �ccrctt, AVashinglon", datcd 1;u:u;u�� 18, �007. 'I'his Ictter ts pruaidrd as :m ;uldcndum w our <br /> Janu;uy I8, 2U07 gcutcchnic.il rcport. <br /> EARTHQUAKE ENGINEERING <br /> lhr 3UUG 113C psratnct�rs >hm��n bclo�v superdcdc thc c;ilucs sl�o«�n in �fablc 2 ui uur J:utuury I8, '_U0� <br /> iupurt. <br /> 2006 IDC Seismic Parameters <br /> � I Recommended <br /> 200G 16C Paramutar Valuo <br /> � SiteClass -----------'�---------- <br /> ' C <br /> . .___ - - � . _. .. ------- _ __.. <br /> Short Period S'pectral Responso Acc��lerelion,Ss(Percent u) 713.8 <br /> . _. __ .__ _ . ._. . _-.--_ —_. - ___ <br /> _. _____ . ._. ._ .- . .___- _ . <br /> 1-Second Peiied 5{;ectrol Response Acceleral!on,Si(percent g) 40.1 <br /> . _ . _ . . . _ . . .. <br /> ...-.. __.____.____ _ . .. . - ._ ._-_ .'.__ __.___. <br /> � SmsmiC Coefficient,F. �•� <br /> . __ <br /> __. . .__ ._ _. _____. .. . _._ _ . .. ._ _- _ .__- _ ___.__ <br /> Seismic Coefficienl,Fv ��� <br /> PERMANENT CUT SLOPE—SOUTH ACCESS ROAD <br /> 11'c und�rstand th:rt thc suuth acccss road is bring rcdc,igncd such that a permancnt <br /> ?H:IV (i�i>rizunt;il:vcrtical) cut slopc will bc cunstructcd alung thc south propcny linc. "Ihc primary cut <br /> ��ill occw :dong thc slopc r,car thc uortlu;ist eorncr of \\'hitticr lilcmcntary Schuol. 'I'hc propuscd <br /> p�nnuncnt cut slop� ��ill blcnd mta the cxisting 2I(:l\' slopc to thc ��•c:�t .md into thc cxisung �q � <br /> approxim�iely 311:1 A' slope that c�ists to the suutheast. // <br /> Iai;L Sdcn�c�leGinulcfY 2924 ColOy A�enuu nm�'m�e FY5.351 A5G5 <br /> [rrieu.WA J8301 �.asin�ue 925.Y51.�SBG <br /> .�s�ne wrcn{eoenCineen.��m <br />