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' STRUCTURAL DESIGN ASSOCIATES, INC. <br /> � � CONSUL11NCa ENGINEEqS— <br /> xw � �aern s�. sw. . vo. eoz s�c <br /> IYNNWD4D, WA bb0)B • PMUNl� ��04� )15/y� i <br /> April 19 , 1)82 <br /> Cu�ra Constructiion Compuuy <br /> P.o, sox 1299 <br /> Everett , WA 98201 <br /> SuU�ect : Sound Safety L�ull�iing. <br /> 'I'o Whom This may concerri : <br /> `I'he Tollowin� proposed chun��e; have beeu approved by this ofi'ice: <br /> 1 . The 8" reinforced concrete walls may be replaced by 8" con- <br /> crete +�asonry wall.s tiaith extra N11 Vertical @ 4 �0" o.c . , ex- <br /> tendir,g over a height equal Lwice the height of earth retaina�;e . <br /> The extra bars are only required where Lhe retainage i� 2 �0" or <br /> more. All cells below highest ad,jacent grade to be grouted solid . <br /> 2 . Tlie concrete walls of the loading dock will be replaced <br /> with 8" C.M.U,-wa113 , wit:3� N5 V@ 24" o. c . , and the rei�il'or�cement <br /> doweled into the slab , Al1 cells to be �routed sol.id . <br /> 3 . The footing f'or tlie loadin�; dock will be cha�a�e�9 t'rom <br /> 2 �-0" x 12" wSth 3 i�5 to 1 �-�I" X 8" w1.t;h ;' fl5 co�it . <br /> 4 . The base connectio��s fur tlio �;oa�❑ a�ill tic cl�an�;�d a„ �howii <br /> on tl�e attached slcetch. <br /> 5• The wire tnesh in and Lhe 2" s�ind u���3 vapor barricr under <br /> the slab within Lhe building, except tt,e loading dock, may Ue <br /> om].ttr3, provided that the subgrade be rolled and moistened t,e- <br /> forc p, acinE; concrete, unQ contrul ,joir.ts , either sawcut .�r <br /> CIIY OF EVEP,ETT <br /> .,c�vrn ro� r, ,,, � ., „�i <br /> --/�-i �_ �;. „ , <br /> � �.. . . . , , _ _ <br /> .� - � � _ <br />