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NOTES: DRAINAGE STONE SPECIFICATION: RETAINED BACKFILL SPECIFICATI4N: 1. THE SECTION SHOWN REPRESENTS TYPICAL CONSTRUCTION FOR THE DRAiNAGE STONE SHALL CONSIST OF CLEAN 1" MINUS RETAINED BACKFILL SHALL BE FREE OF DEBRIS OR BOULDER WALLS AT THE BRIGGS RESIDENCE. THE WALL HEIGHTS, CRUSHED STONE MEETING THE FOLLOWING GRADATION: ORGANIC MATERIAL MEETiNG THE FOL�OWING GRADATION: ELEVATIONS, BACK SLOPES AND TOE SLOPES VARY AS SHOWN ON THE SITE PLAN. SIEVE SIZE: % PASSING SIEVE SIZE: � PASSING 1" 100 1" 100 2. UPON EXCAVATION, WHERE UNSUITABLE SOILS ARE FQUND, SUBCUT TO 3/4" 10Q-75 3/4" 100-75 DEPTH AS REQUIRED BY THE ONSITE GEOTECHNICAL ENGINEER AND No. 4 0-10 No. 4 20-100 REPLACE WtTH SUITABLE COMPACTED STRUCTURAL FILL TO ACHIEVE THE No. 50 0-5 No. 200 0-60 REQUIRED BEARING CAPACITY. THE STRUCTURAL FILL SNALI BE COMPACTED TO A MINIMUM 95% STANDARD PROCTOR DENSITY. FREE DRAINING SAND IS ALSO ACCEPTABLE FOR THE PLASTtCIIY INDEX (PI)<2Q AND LIQUID LIMITS (LL)<40 DRAINAGE MATERIAL. IT MUST HAVE <10� FINES 3. APPROXIMATE LIMITS OF EXCAVATION VARIES WHERE SUBCUT iS PASSING THE N0. 200 SIEVE. ON StTE MATERIAL IS REQUIRED. ACTUAL LiMITS AND SIDE SLOPES TO BE DETERMINED BY ACCEPTABLE IF IT MEETS THIS CRITERIA. CONTRACTOR AND MATCH FIELD CONDITIONS AND OSHA REGULATIONS. 4. THE MINIMUM BOULDER DEPTH (D) !S A FUNCTION OF THE OVERALL WALL HEIGHT AS SHOWN IN THE BOULDER DEPTH SCHEDULE. NOTES: 5_ A SMALLER BOULDER MAY BE USED AS A TOP BOULDER (D/2) FOR HI = EXPOSED WALL HEIGHT FINISHED GRADING PURPOSES. H = EXPOSED WALL HEIGHT + EMBEDMENT 6. THE BOULDERS SHALL BE PLACED TO AVOID CONTINUOU5 JOINT PLANES IN VERTICAL OR LATERAL DIRECTIONS. EACH BOULDER SHALL BEAR ON TWO OR MORE ROCKS BELOW IT, WITH GOOD FLAT—TQ—FLAT CONTACT. 8" LOW PERMEABLE SOII. 7. COMPACT ALL SOILS PLACED BEHIND THE DRAINAGE ZONE TO 95� 8 OZ. FILTER STANDARD PROCTOR DENSITY. p�2 FABRfC 5 MAX 8. THE WALL EMBEDMENT SHALL BE A MINIMUM OF 1.5'. � �� .,,',a, � 9. DO NOT BRING HEAVY COMPACTION OR PAVlNG EQUIPMENT WITHIN 3' OF THE BACK OF THE PROPOSED RETAINING WALL. (3/4DRCRUSHED�STONE - �'�� ` ) :';:` �`�''�::.` �.,::' .:-.� 2' APPROXIMATE LIMITS 10. THE BOULDER WALLS ARE DESiGNED AS GRAVITY WALLS: _ �;_,;:;�_��,� RETAINED SOIL� � OF EXCAVATION .• ,.. MWlMUM SAFETY FACTOR FOR OVERTURNWG............... 1.5 = ``':'--�:��' MINIMUM SAFETY FACTOR FOR SLIDING.................. 1 5 �5• ��'�� ••.. . DRIVEWAY - ��I�'-2�—� ..;la..'.�'. 11. PLACE A 4" DIA CORRUGATED PERFORATED PVC DRAINTILE W/SOCK AT ��-��-�: ��- �.�,�.�.'��-�� — � SEE NOTE 3 THE FINISHED GRADE OF WAt1S AS SHOWN. OUTLET AT LOW POINTS '+'"�"��!'�' '�� BENCH CIfT ALONG WALL. ::-�:�.:_:-° .._...;... ' =—� - - - - - - �� � f ,...D�,... \ / 12. CIVIL SOLUTIONS GROUP SHALL HOLD NO LIABILITY FOR CONTRACTOR \ / � / „ „ NEGLIGENCE. 1�� `�1 1� �1 � 1 �� 1_ � _ � � _1 �f 1 OULDER DEPTH SCHEDULE: 4" PVC DRAINTILE W/SOCK. OUTLET THRU FACE � B OF WALL AT THE LOW POINTS ALONG WALL SUBCUT (SEE NOTE 2) WALL HEIGHT (H): MINIMUM BOULDER DEPTH �D): 0 — 4 ------------- 24� TYPICAL BOULDER WALL SECTION 5 ------------- 27" 6 ------------- 30" 7 ------------- 33" 8 ------------- 36" 9 ------------- 39" COPYRIGHT (c) 2010 6Y CIVIL SOLUT70N5 GROUP, LLC. Designed By: Project: Reg�stration No: CIVIL SOLUTIONS GROUP, LLC No. Dote Revision By 48�26 I herPbyPcertify�hat this plan, specificotion,P r report MSW was re ared b me or un m direct su ervision ond 8200 HUMBOLDT AVENUE SOUTH, SUITE 100 � BRIGGS RESIDENCE tnat am ui 'ce se Pr fessional Engineer under Sca�e: ORONO, �"�N Project No: th I ws of at f inn soto. BLOOMINGTON, MN 55431 2 i�4• _ �'-o" 10-597 PHONE: �952� 294-4755 3 TiUe: FAX: (952� 294-4595 5 °°te: TYPICAL WALL SECTION(S) Sheet No: �o � `p 14 OCT 10 Date: INFOQCSGMN.COM 6 3 Curti J. Denchs, P.E. i 1e w