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#[BllEi#'ineers. Trl Mrssion Slreet, Surle D. Soulh POena, Calitornia 91030 (818) 799-8259. (213) 682.2871 Jrrly 21, l!84 Hrs. Kathleen Tiernan Harkham 2054 San Pasqual Ave. Pasadena, CA 91107 RE: Exlsting building at rear of 902 N. l'lain Street, Santa Ana, California. 0ea r Hr9. Ha rkham: At your request we have examined the two bulldings (front and rear DUiidings) at the referenced adoress. lle surveyed the builoings on November l3 and Decerber 8, 198f. Thls letter reports our findings; The front building on the lot is probably of pre-1933 construction, but has reinforced concrete walls and a roof of t"rcod trusses and rafters. A building of this type of constructlon ls not included in the scope of the o rd i nance. Very truly you r 0 The rear buiiding has walls of unreinforced masonry but was extensively reconstructed after a fire in late l96l . The reconstructlon as determined by our survey included cuttlng into the unreinforced masonry walls and cast i ng re inforced concrete col umns lnto the chases. The or i g ina I building had horizontal concrete bond beams at levels that probably were tloor oi mezzanine levels. These bond beams are Intact and addi tional horizontal bond beanrs were added at the toP of the north and south walls to stabilize the parapets. The west wall was reconstructed with reinforced brick masonry filling in the existing openings and forming a reinforced bond beam the ful I length of the west wal l. The roof framing of the rear Luilding is modern wood trusses with a panel ized plyr^ood roof. This coxstruction is equal to current construction and was undoubtedly designed to suPPort the walls in the event of an earthquake. ln conclusion, it is our oPinion that neither of the two buildings comprising the existing c,)nstruction at 902 North Hain Street are included in the scope of the ordinance and no reconstructlon for earthquake hazard reductlon viil I be requlred. lf yotr require addltlonal information on these existing buildinqs, please call us. .<.4 Ne Ro se I und Str ctural Engineer ['*