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07/21/2000 07:07 FAX 50a 581 a655 ARBtiCRLE COSTIC ~ BILLY WASSON f~ 001/001 ~ ~ ~~ ~ ARBUCKLE COSTIC ARCHITECTS, INC. ~~~~ `' 363 State Street FA)C TRANSMITCAL Satem, Oregon 97301-3533 (503) 581 ~i I 14, Fax (503) 581-3655, E-mail: arthitects@arbucklecoscic.com TO: Dave Hays, Project Manager John Gremrnels, Project Engineer Steve Schaad, Superitnendeht Pence/Kelly Construction, Inc. 2747 Pence Loop SE, P.O. Box 4109, Salem, OR 97302-8109 FAX 364 5382 NO. ORfGINAL BY MA(L• COMMENTS: Yes DATE: July 21, 2000 JOB NUMBER 9828 RE: Courthouse Square NO. OF PAGES I (ncluding this page) No Concrete Brick Paving Issues: • Dur specification ralls for the sand to be screeded to a(.4" thickness. In an email from John Knapton, he indicates tha,t: "The norma! practice is to screed and compact the sand, leaving height for a quarter of an inch of additional sand to be scr~eded than left loose. The pavers are installed into the Ioose sand then vibrated - the loose sand partlr ertters the joints and the ~emainder compacu. This method avoids the problem of differential relative compaction and therefore unhevenness in the surface." Can you let us know what this will do to Shonnert's price. ~ ~ With respect to the grade problem, he agrees that 4" of sand under the pavers is to much. Ideally ic should be I.25" compacted. We could go up to 3" but not prEferably. The better solution is to build up using a dry pack consisting of cement added to the sand in feathered wedges. The ratio of sand to cement would be I 5 to l_ The top I.25" should be sand only. cc: Craig Lewis, MMDC John Wfiittington, SAMTD Billy Wasson, Marion County Please calf us if you have any quesrJons on the docume~t(s) or if there are arry pages r„Issing. By: Leonard Lodder, A_I.A. File No.: 9B2B-3D