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Q � NOTES: DRAINAGE STONE SPECIFICATION: RETAINED BACKFILL SPECIFICATION: <br /> � <br /> S 1. THE SECT'ION SHOWN REPRESENTS TYPICAL CONSTRUCTION FOR THE CORNESS RESIDENCE BOULDER DRAINAGE SI'ONE SHALL CONSIST OF CLEAN 1" CRUSHED RETAINED BACKFILL SHALL BE FREE OF DEBRIS OR ORGANIC <br /> a RETAINING WALI., MOLTND, MINNESOTA. THE WALL HEIGHTS, ELEVATIONS, BACK SLOPES AND TOE SLOPES STONE(PHI 40°)MEETING THE FOLLOWING GRADATION: MATERIAL MEETING THE FOLLOWING GRADATION - PIT RUN <br /> ; VARY AS SHOWN ON THE SITE PLAN AND ELEVATTONS PLANS RESPECTIVELY. SAND(PHI 30°): <br /> `,'J SIEVE SIZE: %PASSING <br /> 0 2. UPON EXCAVATION, WHERE LJNSUITABLE SOILS ARE FOUND, SUBCLJT TO DEPTH AS REQUIRED BY THE 1" 100 SIEVE SIZE: %PASSING <br /> � ONSITE GEOT'ECHNICAL ENGINEER AND REPLACE WITH SUITABLE COMPACTED STRUCTURAL FILL TO 3/4" 100-75 1" 100 <br /> o ACHIEVE THE REQUIRED BEARING CAPACITl'. BENCHCUI'WHERE ONSITE SOILS ALLOW. THE STRUCT(IRAL No.4 0-10 3/4" 100-75 <br /> a FILL SHALL BE COMPACTED TO A MINIMUM 95%STANDARD PROCTOR DENSITY. No.50 0-5 No.4 20-100 <br /> � No.40 0-60 <br /> � 3. APPROXIMATE LIMITS OF EXCAVATION VARIES WHERE SUBCLJT IS REQUIRED. ACTUAL LIMITS AND SIDE FREE DRAINING SAND IS ALSO ACCEPTABLE FOR THE No.Z00 0-35 <br /> A SLOPES TO BE DETERMINED BY CONTRACTOR AND MATCH FIELD CONDITIONS AND OSHA REGULATIONS. DRAINAGE MATERIAL. IT MUST HAVE <5%FINES PASSING THE <br /> � NO.200 SIEVE. PLASTTCITY INDEX(PI)<10 <br /> 0 4. THE MINIMUM BOULDER DEPTH (D) IS A FUNCTION OF THE OVERALL WALL HEIGHT AS SHOWN IN THE <br /> � BOULDER DEP'TH SCHEDULE. <br /> w <br /> � <br /> 0 5. A SMALLER BOULDER MAY BE USED AS A TOP BOULDER(D/2)FOR FINISHED GRADING PURPOSES. <br /> � <br /> � 6. THE BOULDERS SHALL BE PIACED TO AVOID CONT'INUOUS JOINT PLANES IN VERTICAL OR LATERAL NOTES: <br /> o DIRECTIONS. EACH BOULDER SHALL BEAR ON"TWO OR MORE ROCKS BELOW IT,WITH GOOD FLAT-TO-FLAT <br /> � CONTACT. H1=EXl'OSED WALL HEIGHT <br /> W H=EXI'OSED WALL HEIGHT+EMBEDMENT <br /> � 7. COMPACT ALL SOILS PLACED BEHIND THE DRAINAGE ZONE TO 95%STANDARD PROCTOR DENSITY. <br /> w <br /> x <br /> 0 8. THE WALL SHALL REQUIRE A MINIMLTM EMBEDMENT DEPTH OF 12" WHERE THERE IS NO TOE SLOPE. A <br /> � MINIMi1M EMBEDMENT DEPTH OF 16" SHALL BE REQUIRED WHERE THERE IS A 3H:1V SLOPE AT THE TOE OF <br /> ,, WALL. <br /> a <br /> ° 8"LOW PERMEABLE SOIL � PATIO <br /> 9. DO NOT BRING HEAVY COMPACTION OR PAVING EQUIPMENT WITHIN 3.3' OF THE BACK OF THE PROPOSED � <br /> o RETAINING WALL. D Z <br /> � 10. THE BOULDER WALIS ARE DESIGNED AS GRAVITY WALLS REQUIRING NO SOIL REINFORCEMENT: <br /> ° MINIMUM SAFETY FACTOR FOR OVERTURNING 1.5 WALL 1 a�' ` ` �. A� � <br /> � MINIMUM SAFETY FACTOR FOR SLIDING 1.5 RETAINED SOIL <br /> W MINIMUM SAFETY FACTOR FOR BEARING 2.0 x e � <br /> y . GRANITE BOULDER � . : ;.. . • � — — <br /> � 11. PLACE A 4" DIAMETER PERFORATED DRAINPIPE WRAPPED WTIH GEOTEXTILE FABRIC INSTALLED WITH x � 12"MIN DRAINAGE ZONE 4 a APPROXIMAT'E LIMITS <br /> POSITIVE DRAINAGE.OUTLET AT LOW END OF WALL. ,;, OF EXCAVATION <br /> o a � (1"CRUSHED STONE) ' I <br /> x 12. ONSITE SOIL PARAMETERS MUST BE VERIFIED PRIOR TO CONSTRUCTION. IF SITE SOILS DO NOT MEET THE � FINISHED GRADE 15� Q° `' ° <� a a.' $OZ FILTER FABRIC — � <br /> ^ GRADATION ABOVE AND DESIGN PARAMETERS SHOWN ON SHEET 1, CONTACT CDP IMMEDIATELY AND A <br /> � REDESIGN WILL BE REQUIRED. 1%MIN a' :� BENCH CLJT � <br /> � <br /> � ` e e . . . _ _ f�SEE NOTE 3 <br /> m SEE NOTE 8.\ �. �g 4"DIA DRAINTILE(SEE NOTE 11) <br /> � '� �° — � <br /> � \ — — — — — <br /> � <br /> \ / D � / <br /> � BOULDER STACKING DETAIL BOULDER DEPTH SCHEDULE: 1� / ,1 1� �i <br /> WALL HEIGHT(H): MINIMLJM BOULDER DEPTH(D): \ � � � <br /> < MIN) TOP BOULDER 1 �_ 1_ _ _ _ _ _ _ _ 1 _� 1 <br /> � <br /> � 30"D (SEE NOTE 5) �5 4 Z�� SUBCUT(SEE NOTE 2)� <br /> � H=6' 30"D 6' 30" <br /> ` 7 33 TYPICAL WALL SECTION A-A <br /> tz7 30"D DEP"I7-[(D)TO HEIGHT(H) <br /> � WHEN H=6'-BOULDERS SHALL <br /> p BE A MINIMUM 30'DEEP (AS PER <br /> � 30'D BOULDER DEPTH SCHEDULE) <br /> U <br /> �^ <br /> m <br /> v <br /> 0 <br /> N <br /> O <br /> N <br /> i <br /> U <br /> �"'8"`d Br P'°�"" t�'°°ari°"N°: I hereby certify that this plan,specification,or report was prepared by <br /> No. Dare R�vision <br /> � 1 � S� CORNESS RESIDENCE 25493 me or under my direct supenision and that I am a duly Licensed <br /> o CIVIL DESIGN 2 smtt MOUND,MINNESOTA �a��No Profc,sional Engineer under the laws of the State of Minnesora. <br /> c � R !� � E S S I (� N t� L S 3 1/4"�1'A" 14-0518 <br /> � nac <br /> � �o"�'�'�°J�14)IVZNPA7G17O181tJ9b9W�WEBSIT&WR'W.CDP11�� s °�" BOULDER WALL SECTION AA ""�"°: �� oa/I9/� <br /> g ;e'��,,,��A,,,a�"e•q,,,,�,,,,�o�,,, 6 AUG 192014 3 MICHAEL ]OHNSONP.E <br />