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BOULDER DEPTH SCHEDULE: CONSTRUCTION NOTES: W� HEIGHT (H): MIN1MllM 60U1�ER DEPTH (D): �. THE SECTION SHOWN REPRESENTS TYPICAL CONSTRUCTION FOR THE 9. THE BOULDERS SHALL BE PLACED TO AVOID CONTINUOUS JOINT BOULDER WALL AT 3315 GRAHAM HILL ROAD. THE WALL HEIGHTS, PLANES IN VERTICAL OR LATE�ZAL DIRECTIONS. BOULDERS SHALL BE 0 — 5' ------------- 25" ELEVATIONS, BACK SLOPES, AND TOE SLOPES VARY AS SHOWN ON STAGGERED TO INTERLOCK WITH ADJACENT ROCKS. EACH BOULDER 6� ------------- 28p THE SITE PLAN AND ELEVATIONS PLANS RESPECTIVELY. SHALL BEAR ON AT LEAST TWO ROCKS BELOW IT, WITH GOOD �� _____________ 31" FLAT—TO—FlAT CONTACT. g' ------------- 34" 2. UPON EXCAVATION, WHERE UNSUfTABLE SOILS ARE FOUND, SUBCUT TO DEPTH AS REQUIRED BY THE ONSITE GEOTECHNICAL ENGiNEER AND 10. DO NOT BRING HEAVY COMPACTION OR PAVING EQUIPMENT WITHIN 3' REPLACE WITH SUITABLE COMPACTED STRUCTURAL FILL TO ACHIEVE OF THE BACK OF THE PROPOSED BOULDER REfAINING WALL. THE REQUIRED BEARING CAPACITY. THE STRUCTURAL FlLL SHALL BE COMPACTED TO A MINIMUM 9596 STANDARD PROCTOR DENSITY. 11. THE BOULDER WALL IS DESIGNED AS A GRAVITY WALL: MINIMUM SAFETY FACTOR FOR OVERTURNING 1.5 3. APPROXIMATE LIMITS OF EXCAVATtON VARIES WHERE SUBCUT IS MINIMUM SAFEfY FACTOR FOR SUDING 1.5 DRAINAGE STONE SPECIFICATION: REQUIRED. ACTUAL UMffS, AND SIDE SLOPES TO BE DETERMINED BY MINIMUM SAFEfY FACTOR FOR BEARING 2•� CONTRACTOR AND MATCH FlELD CONDITIONS AND OSHA REGULATIONS. DRAINAGE STONE SHALL CONSIST OF CLEAN 1" MINUS 4. ALL WORK AND MATERWLS SHALL COMPLY WITH ALL STATE, COUNTY, 12. PLACE A 4" DIA CORRUGATED PERFORATED PVC DRAINTILE WfTH SOCK CRUSHED STONE MEEfING THE FOLLOWING GRADATION: AND Clll' REGULATIONS AND CODES AND OSHA STANDARDS. AT THE FINISHED GRADE OF THE WALL AS SHOWN. OUTIET AT LOW SIEVE SIZE: % PASSING POINTS ALONG WALL. �« 100 5. THE WALL SHALL BE CONSTRUCTED WITH BOULDERS THAT ARE SOUND, 3/4" 100-75 NARD, AND DURABLE USING A MINIMUM 15' SETBACK. 13. A GEOTEXTfLE FABRIC SHALL BE PLACED WHERE THE BOULDER WALL No. 4 0-10 ABUTS TO THE HOUSE FOUNDATION AS SHOWN ON THE SITE PLAN No. 50 0_5 6. THE MINIMUM BOULDER DEPTH (D) IS A FUNCTION OF THE OVERALL (SHEET 2). OVERIAP ALL ABUTMENT JOINTS 24" WITH A MINIMUM I WALL HEIGHT AS SHOWN IN THE BOULDER DEPTH SCHEDULE. A 48" WIDE FABRIC TO PREVENT THE COREFlLL AND BACKFlLL FROM SMALLER BOULDER MAY BE USED AS A TOP BOULDER (D/2) FOR MIGRATING THROUGH THE ABUTMENT JOINTS. I� FREE DRAINING SAND IS ALSO ACCEPTABLE FOR THE FlNISHED GRADING PURPOSES. I DRAINAGE MATERIAL. IT MUST HAVE <1095 FlNES 14. CNIL DESIGN PROFESSIONALS SHALL NOT BE LIABLE FOR CONTRACTOR PASSING THE N0. 200 Sl�l/E. ONSITE MATERIAL IS 7, TF{E WALL EMBEDMENT SHALL BE A MINIMUM OF 1.0'. NEGLIGENCE. ACCEPTABLE IF IT MEEfS THIS CRITERIA. 8. THE BACKFlLL MATERIAL SHALL BE PLACED WITH A MAXIMUM OF 8" L1FTS AND COMPACTED TO 95% STANDARO PROCTOR DENSITY. RETAINED BACKFILL SPECIFICATION: � PERMEABLE SOIL DRIVEWAY RETAINED BACKFlLL SHALL BE FREE OF DEBRIS OR �-;:,. e ;, i ; '• ' , ,; • ORGANIC MATERIAL MEETING THE FOLLOWING GRADATION: 12" MIN DRAINAGE ZONE � � �� .� �i� Si7F, % PASSING (1" CRUSHED STONE) ; .`"",.. - APPROXIMATE D(ISTING GRADE 1" 100 = 8 OZ MIN FlLTER FABRIC RETAINED SOIL—� ` _ ._ _ 3/4" 100-75 = - .`�� — — — — � � — — `:.-:.'` > — No. 4 20-100 FlNISHED GRADE _ �5• �;;:-:�::::•;;:'.. / i No. 200 0-50 �"'''� l ' APPROXIMATE UMITS � .� ``' '` ' OF EXCAVATION SEE NOTE 3 .,_,._;, PLASTICITY INDEX (PI)<15 AND LIQUID LIMITS (LL)<30. — — — — — -- � \ , � \\12" MIN /� D---� �\ �/ D 1�\ /�1 1�\ �1 » ,. / � \�/ � - - - - 1 „� � � DRAWING KEY: �SUBCUT (SEE NOTE 2) HI = EXPOSED WALL HEIGHT LOW PERMEABLE SOIL 4" PVC DRAlNTILE WITH H = D(POSED WALL HEIGHT + EMBEDMENT SOCK (SEE NOTE 12) TYPICAL BOULDER WALL SECTION �-'�' �- � " '= CITY OF ORONO ooa,R�crrr c�) �o„ er crv� o�cH Pao�ssiowus __ __ _i Deetgned By: Prokci R°9ist�tion N°' I hereby certify that thia plan, specifieotion, or roport �-��;-,rri i-` r� �' �1�1LDESIGN � � R��on TPH 482�6 was prop red me or under m diroct supervision and � 3315 GRAHAM HILL ROAD t►�ot I du� uc as� nal E�gineer undx � 2 �„ ORONO, MINNESOTA aro�xc Na: thn I the e Mi esota. tl ,__,__r±i�+�-- 1 li �� ' F. ;i S I <) \ A 1. 6 3 N.T.S. II-IIO 8609 LYNDALE AVHNUE SOIf[71,SUTI'E 200 �� BLOOMR�ICfON,MINNFSOTA55420 `` °ate: TYPICAL WALL SECTION �'°°` "°` �� PHONE:(612)2843696 5 22 JULY 2011 �� w�si�,WWW.CDP-US.COM 6 3 Curtis . Derieha, P.E