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. ' � <br /> y . ■ � <br /> ���0 �a <br /> SCOPE <br /> SCOPE INCLUDES DESIGN AND DETAILING OF A BOULDER RETAINING WALL WITH A MAXIMUM EXPOSED HEIGHT <br /> OF 7'-6". ALL CONSTRUCTION IS TO BE DONE IN ACCORDANCE WITH STANDARD INDUSTRY PRACTICE AND THE <br /> REQUIREMENTS OF THE CODE. <br /> NOTES <br /> 1. THE FOOTING BOULDERS ARE TO BE BURIED INTO VIRGIN MATERIAL OR ENGINEERED FILL AS SHOWN IN <br /> THE WALL SECTIONS ALONG THE ENTIRE LENGTH OF THE WALL. <br /> 2. GRADE AT BASE OF WALL SHALL BE IN ACCORDANCE WITH THE CERTIFICATE OF SURVEY PRODUCED BY <br /> SATHRE-BERGQUIST, INC LAST DATED 7-25-13. <br /> 3. INSTALL SMALL ROCKS BETWEEN LARGER BOULDERS TO PROVIDE A SOLID WALL AND TO PROVIDE <br /> SUPPORT FOR THE DRAINAGE MEDIUM. <br /> 4. DEPENDING ON THE DRAINAGE MEDIUM AND ON-SITE MATERIAL,THE CONTRACTOR MAY INSTALL FILTER <br /> FABRIC BEHIND THE DRAINAGE MEDIUM IN FRONT OF THE BACKFILL TO ENSURE THAT THE BACKFILL <br /> MATERIAL DOES NOT WORK OUT INTO THE DRAINAGE MEDIUM (OPTIMAL FOR A GRAVEL DRAINAGE <br /> MEDIUM) OR BETWEEN THE BOULDERS AND DRAINAGE MEDIUM (OPTIMAL FOR A SAND DRAINAGE <br /> MEDIUM). <br /> 5. THE DRAINAGE MEDIUM IS TO BE COMPACTED OVER THE FULL HEIGHT OF THE WALL AND CAPPED WITH A <br /> 6"THICK CLAY LAYER. PROPER COMPACTION PROVIDES FOR SOLID PACKED MATERIAL,WHICH TENDS <br /> NOT TO SHIFT BEHIND THE WALL. <br /> 6. INSTALL DRAINTILE AT THE BASE OF THE WALL. DRAINTILE IS TO DRAIN TO DAYLIGHT AT EACH END OF <br /> THE WALL AND INTERMEDIATELY USING WEEPS SPACED AT NO GREATER THAN SIX FEET ON CENTER OR <br /> AS REQUIRED. DRAINTILE AND DRAINAGE ARE ESSENTIAL TO KEEP THE FLUID PRESSURE REDUCED <br /> BEHIND THE WALL. <br /> 7. WALL LAYOUT, ELEVATIONS, PROPERTY BOUNDARIES, GRADING, EXCAVATION,OVERALL SLOPE <br /> STABILITY, VERIFICATION OF INFORMATION,AS WELL AS DRAINAGE IS BY OTHERS. THESE DOCUMENTS <br /> APPLY TO STRUCTURAL DESIGN ASPECTS OF THE BOULDER RETAINING WALL ONLY. <br /> 8. FINISHED GRADE BEHIND TOP OF WALL SHALL BE LESS THAN 10% MAX. SLOPE. <br /> MATERIALS <br /> BACKFILL: REPORTED SANDY-CLAY ON-SITE CLASSIFICATIONS GM,GC,SM,SM-CL,& ML(EQUIVALENT FRICTION <br /> ANGLE =30°) <br /> DRAINAGE MEDIUM: 100%SAND OR GRAVEL MATERIAL(NO FINES) <br /> CODES <br /> 2007 MINNESOTA STATE BUILDING CODE w/AMENDED 2006 IRC <br /> PI'OJECI: I hereby certify that this plan,specification or report was prepared by Date f32V <br /> Boulder Retaining Wall me or under my direct supervision and that I am a duly Licensed <br /> 180 Kintyre Lane Professional Engineer under the laws of the State of Minnesota. <br /> Date: 7-30-13 License Number: 46665 <br /> Orono, MN „ <br /> �/'., , �;s., <br /> CI10flt: Signed: ' <br /> � Hawkins Tree & Landscaping Pri�t nlame: NiCk HBnSOn <br /> 3407KiImerLaneNorth 1776 Canterbury Rd.S Project Number: 3.210 ^ J <br /> $pje4 Drawing Date: JuIv30.2013 ` <br /> PiYmo�m,MN ssaai ShdkOpee, MN 55379 <br /> Te1612-708-3572 Sheet: 1 of 2 � <br /> 0 COPYRIGHT HANSON GROUP LLC 2013 <br />