Laserfiche WebLink
I <br /> J <br /> I <br /> fi 6 <br /> _ 0, <br /> 0 -•—•I <br /> E Sloped to Drain Exterior Wall <br /> Away from <br /> Structure <br /> r.: <br /> i 4.) <br /> • Wall Drainage Material <br /> Pavement or 24" g <br /> _'I Impervious Soil------- <br /> Yn <br /> II 03 Retained Soil w f 2' Min. <br /> zi:Temporary , ,Damp Proofing <br /> N Excavation Slope- _ ) '% <br /> I '�*" Vapor Retarder <br /> 1 z ___i , ,, Floor Slab <br /> � l t ,f <br /> mL ;,Y•J JJJr ;V.;✓rr rc..'•;'t..%N 6" Min. <br /> II r e [ <br /> 12" Min. Cover of <br /> Drainage Material <br /> (6" Min. on Sides 4 - Capillary Break <br /> Perforated Drain Pipe <br /> of Pipe) -- <br /> 1 <br /> N <br /> 11 N <br /> rn <br /> E <br /> MATERIALS <br /> 11 z A. WALL DRAINAGE MATERIAL: May consist of washed 3/8" to No. 8 pea gravel. Alternatively the <br /> v wall drainage material may consist of "Gravel Backfill for Drains" per WSDOT Standard <br /> i— Specification 9-03.12(4), surrounded with a non—woven geotextile such as Mirafi 140N (or <br /> o I <br /> approved equivalent). <br /> J <br /> B. RETAINED SOIL: Should consist of structural fill, either on—site soil or imported. The backfill <br /> should be compacted in loose lifts not exceeding 6 inches. Wall backfill supporting building <br /> floor slabs should consist of imported sand and gravel per WSDOT Standard Specification <br /> 11 9-03.14 or City of Seattle Type 17 compacted to at least 95 percent ASTM D1557. Backfill <br /> not supporting building floor slabs, sidewalks, or pavement should be compacted to 90 to <br /> 92 percent of the maximum dry density, per ASTM D1557. Backfill supporting sidewalks or <br /> pavement areas should be compacted to at least 95 percent in the upper two feet. Only <br /> I a, hand—operated equipment should be used for compaction within 5 feet of the walls and no <br /> v heavy equipment should be allowed within 5 feet of the wall. <br /> ri <br /> u <br /> o C. CAPILLARY BREAK: Should consist of at least 6 inches of clean crushed gravel with a <br /> II o maximum size of 1-1/2 inches and negligible sand or fines. <br /> 0 <br /> N. <br /> ''�n D. PERFORATED DRAIN PIPE: Should consist of a 4—inch diameter perforated heavy—wall solid <br /> N pipe (SDR-35 PVC) or rigid corrugated polyethylene pipe (ADS N-12) or equivalent. Drain <br /> o pipes should be placed with 0.5 percent minimum slopes and discharge to the storm water <br /> collection system. <br /> o <br /> o <br /> o Wall Drainage and Backfill <br /> N. <br /> N <br /> 1 Rockefeller Apartments <br /> -I Everett, Washington <br /> eL <br /> jILaGEOE'NGINEER Figure 3 <br />