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March 31, 1999 <br />O~ <br />Nathan Br ~`~ n,, <br />Chief B ' cial tij ~Q~O "0 <br />~;~ sqq~o ~P j V <br />6 and Safety Division FA ti I,9 ~ <br />erty Street SE, Room 320~CF~~/~/ 99 O <br />em, Oregon 97301-3503 OFp~S <br />RE: Courthouse Square ~ ~'ti1F~9T <br />Project No. 9828 ~ <br />Dear Nathan: <br />Kim Arbuckle, AIA <br />Alan E. Costic, AW <br />Walter E Bensman, Jr , AlA <br />Clay[on Vorse, AIA <br />Mark M Fosrer, AIA <br />Leonard Lodder, AIA <br />Richard S. Roth~veiler, AIA <br />ARBUCKLE COSTIC ARCHITECTS, INC. <br />3~3 State S[reet <br />Salem, OR 97301-3533 <br />503/581-4114 Fax: 503/581-3655 <br />E-Mail: acarchCopen.org <br />Jeff Moore, Deputy Fire Marshail, has raised a concem about the main lobby of the Courthouse Square project, <br />spedficaNy with respect to the code requiremerrt for smoke co~rol. The bu~dmg has c~urently been designed to meet <br />UBC Paragraph 1004.3.4.5, using Exception No. 1 which relieves ths requiremerrt of provid'~ng an elevat~r lobby as <br />foMows: <br />"k~ office bwldings, separations need not be provided from a street floor elevator lobby. provided the <br />e~tire street floor is protected with an automatic sprinlder system " <br />Jeff has raised the concem that the building corrtains both A3 and M occupanc:ies and~ therefore~ the refere~ced <br />exception nagh~ not apply, but would defer to yo~u deasion. We believe fhat the referenced exception should apply for <br />the foaowing reasons: <br />a) The phrase 'office building' ~efers to a build~ng type and not necessarily an occupancy <br />~tion. As a bwlding type, "office buildngs' generaqy cotrtain minor accesso~- uses in <br />and adjace~ to street floor elevator lobbies. <br />b) The other ax~upancy dassifications corrtained in the bu~l~ing do not requi~e occupying <br />separations acx,o~dng to UBC Table 3B. <br />c) The other occupanaes represent less than ten percerrt of the ~oss floor area. <br />(Nate: The undergrand parldng garage is left out of tfie above calcx~lation.s and is separated from the <br />above ground building by a~ occupancy separator as per the UBC Table 3B.) <br />In reviewing this issue with Jeff, he agreed fhat if our project met the interrt of UBC 1004.3.4.5, Exception 1, than my <br />lett~ to you of March 4,1999, on the glazing in openings would cease to be an issue. We look forward to yow timely <br />~esponse on this issue. <br />Si~cere , <br />eonar odder, AIA <br />Architect <br />LL:mh <br />Encl. <br />cc: Crai Lewis <br />ss2s.s <br />