1202 SHUKSAN WAY 2018-01-01 MF Import

i � Ihe diflicuh if not im�ssihle. li is unlil:ch diat tlic �ill soil �rill he sui�ahle for use as struchiral lill at the site except during cstcnded dq��riods. I If the on-sitc glacial tiil is not suitable,thcn wc rceommend thal imponed slructur;d fill m:ncri::l Ihavine no more than ahout 5 perccnt fines be used. If thc material is too wct whcn dcli�cred io Ihc site. or of it becomes overly wet from rnin, it musl bc aerated and dried out prior to placcmcm as I fill. During eatended periods of dry wcadur conditions, a structural fill tnaterial ��ith more Ihan 5 perceni fincs may be usable. I �1.2.6 Fill Placement Unless specificd othenvise in this rcpon, the followine cencral requircmcnis shall apply to :dl � fill and backfill placement. 1. All fill and backfill tnust be placed in thin lifts so that wiifortn crnnpaction can he achicved Uvoughout the entirc lift thickness. In general,granular soils with less than 5 percent fines can ( be placed in lifts of about 12 inches or less loose Ihickness. On-site glacial till soils williin 2 � percent of the optimum moisture content should be placed in Ioose IiRs not escceding six r inches. Till soils more than about 2 percent wet of optimum ma� requirc aeration to uchicvc Iproper compaction. Each lift must be compacted prior to placing the subsequent lift. 2. All s[ructural fill beloN• Ihe building arca must be compacted to at least 95 percent MDD as j determined by the ASTM D 1557 test procedure. The uppermost '_4 inches of subgrade soils � below pavemenls must also be compacted to at Ieast 95 percent MDD per ASTM D 1557. fill 1 and backfill more than 24 inches below pavement subgrade must be compactcd to at least 92 percent MDD per ASTM D 1557. 3. Prior to compaction,the structural fill material should be moisture conditioned to within atwut I 3 percent of optimum moisture content, othenvise adequate compaction may bc di�cult to achieve. For 95 percent compaction, it may be necessan•to dry the till soils to within 2 percent of die optimum moisture content. � 4. Compaction must be achieved by mechanical mcans. No ietting, ponding or Oooding �eill bc allowed for compaction. During fill and backfill placement, a suitable number of in-place density tcsts sliould be � performed concuRently u ith die filling to check that the required compaction is being achieved. � 4.2.7 Temporery Cut Slopes Temporary cut slopes are anticipated for consWc[ion of underground utili[ies and to I accomplish placement of swctural fill below foundatiuns. All temporary cu[ slopes and shoring must comply with the pro��isions of Title 296 WAC, Part N, "Excavation, Trenching and Shoring." Tne contracror pedorming the work must have the primary responsibiliry for protection of workmen I and adjacent improvements, deciding a�hether or not to use shoring, and for establishing die safe � inclination for open-cut slopes. I l �/ G c o [ n r i n e c r s ]� FilcNo. 7584-OOb00d130\050101 �� l `�