430 SW EVERETT MALL WAY 2018-01-01 MF Import

� CASCADE GEOTECHNICAL November 16, 1988 Job No. 8811-20G Rainier Capital Manager�ent Page 5 � should have less than five (5) percent minus 200 size material, based on the fraction passing the #4 sieve. We also recommend that � a vapoc barrier he placed under the slab. Drainage Roof drains should be tightlined Separate footing drains, bedded and should be provided. Lateral Forces to the storm sewer sy:tem. backfilled with pea gc•avel The basement walls should be backfilled with free-draining granular soil which conforms to the all-weather fill specification presented in the Structucal Fill section of this report. Wall backfill should be compacted to 45 percent of the ASTM D-1557 maximum dr,y density in ocder to minimize pavement settlement adjacent to the walls. A footi.ng drain, bedded and backfilled with pea gravel should be placed at the base of the walls. Walls backfilled in accordance with tl.iesa recommendations may be designed using the following active late�al forces: 40 pef eguiva- � lent fluid for walls free to deflect at least .001H during back- ; filling, 60 pcf for rigid walls. These values are for hocizontal backfill with a succharge from cars or light trucks. General We recommend that we be asked to review the final plans before construction begins. We also recommend that we observe the foundation excavation and observe the placement of any fill.