Loading...
0.445 Hawkins - Bluffs at Lake Lucy 9-29-20Project Number:Date:1Sheets: ofI hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.Print Name:Signed: License Number:Date:S1Trevor Axner454703407 Kilmer Lane NorthSuite 4Plymouth, MN, 55441Tel 612-708-3572www.hansongroupmn.comCOPYRIGHT HANSON GROUP LLC 2020©Project:Client:SCOPEDESIGN AND DETAIL OF THE BOULDER RETAINING WALLS FOR A RESIDENTIAL DEVELOPMENT. THIS WORK CONSISTS OF CONSTRUCTING BOULDER RETAINING WALL STRUCTURES AT THE LOCATIONS AND TO THEDIMENSIONS SHOWN ON THE PROJECT SITE PLAN, PREPARED BY SATHRE-BERGQUIST, INC. LAST DATED 9-23-20. CONSTRUCTION IS TO BE DONE IN ACCORDANCE WITH THESE DRAWINGS, STANDARD INDUSTRYPRACTICE, AND THE REQUIREMENTS OF THE CODE.GENERAL NOTES1.INFORMATION USED IN THE DESIGN OF THESE BOULDER WALLS WAS REPORTED BY THE CONTRACTOR IN THE FIELD, OR TAKEN FROM THE SITE PLAN. ALL INFORMATION IS TO BE VERIFIED PRIOR TO THE START OFCONSTRUCTION. CITY INSPECTIONS ARE TO BE CONDUCTED TO VERIFY CONFORMANCE WITH THESE DOCUMENTS. ALL EXISTING CONDITIONS AND CONTOURS ARE TO BE FIELD VERIFIED AND ALL DRAINAGE IS TOBE VERIFIED. IF ANY DRAINAGE CONCERNS OR SITE DESIGN CONCERNS ARISE DURING CONSTRUCTION, CONSULT THE ORIGINAL SITE DESIGN ENGINEERS, SATHRE-BERGQUIST, INC. FOR REQUIREMENTS, ANDNOTIFY THE HANSON GROUP.2.IN PREPARATION OF WALL DESIGN, SOIL STRENGTH PARAMETERS WERE ASSUMED. IT IS THE RESPONSIBILITY OF THE OWNER AND CONTRACTOR TO VERIFY THE SOIL STRENGTH PARAMETERS AREREPRESENTATIVE OF THE SOILS AVAILABLE FOR WALL CONSTRUCTION AT THE SPECIFIC RETAINING WALL LOCATIONS. IF THE SOIL STRENGTH PARAMETERS ARE FOUND TO BE INCONSISTENT WITH THOSEASSUMED, THIS DESIGN IS NO LONGER VALID AND IT IS THE RESPONSIBILITY OF THE OWNER AND CONTRACTOR TO NOTIFY THE HANSON GROUP SO THE RETAINING WALL SYSTEM CAN BE REDESIGNED. FAILURE TONOTIFY THE HANSON GROUP MAY RESULT IN AN INADEQUATE RETAINING WALL.3.DESIGN SOIL PARAMETERS: RETAINED SOIL (IMPORT OR NATIVE) =28 DEGREES MIN, g=120± PCF, LEAN CLAY (CL), ALLOWABLE SOIL BEARING PRESSURE - 1,500 PSF. FIELD VERIFY WITH GEOTECHNICALENGINEERING TESTING PRIOR TO STARTING CONSTRUCTION. VERIFY IF SOIL CORRECTIONS ARE REQUIRED. SEE SECTIONS FOR TALL WALLS REQUIRING ADDITIONAL STRENGTH VERIFICATION.4.ALL EXCAVATIONS SHOULD HAVE PROPER OVERSIZING AND MAINTAIN SAFE SLOPES IN ACCORDANCE WITH ALL OSHA REQUIREMENTS. CONTRACTOR IS TO CONSULT w/ A GEOTECHNICAL ENGINEER AS REQUIRED.5.THIS SET OF BOULDER RETAINING WALL PLANS ARE BASED ON INFORMATION BY THE BOULDER CONTRACTOR AND PROVIDED GRADING PLAN PREPARED BY SATHRE-BERGQUIST, INC. LAST DATED 9-23-20. NONEWER SITE PLAN OR SURVEY HAS BEEN PROVIDED TO VERIFY EXISTING OR PROPOSED SITE INFORMATION. THE CONTRACTOR IS TO WORK WITH SATHRE-BERGQUIST, INC. TO COORDINATE THE SITE DESIGN. IFOTHER PLANS ARE PRODUCED THAT CONTAIN DIFFERENT INFORMATION THAN THAT REFERENCED, THIS PLAN MAY NEED TO BE REVISED AND/OR THE WALLS MAY NEED TO BE REDESIGNED.6.LOCATION OF THE RETAINING WALLS IN RELATION TO PROPERTY LINES, UTILITY EASEMENTS, WATERSHED EASEMENTS, OR ANY OTHER TYPE OF EASEMENTS ARE THE RESPONSIBILITY OF THE OWNER ANDCONTRACTOR. THE HANSON GROUP ASSUMES NO LIABILITY FOR THE LOCATION OF THE BOULDER RETAINING WALLS OR IF CONSTRUCTION OF THE PROPOSED BOULDER RETAINING WALLS ENCROACH ANYPROPERTY LINES OR EASEMENTS.7.IT IS IMPERATIVE THAT THE SITE SURVEYING OF THE BOULDER RETAINING WALLS BE BASED ON SURVEYED SITE PLANS AND NOT PROFILE PLANS OR SECTIONS DONE BY THE HANSON GROUP. SURVEYING OF THEBOULDER RETAINING WALLS MUST TAKE INTO ACCOUNT THE DESIGN BATTER INDICATED ON THE ENCLOSED PLANS AND DETAILS. FAILURE TO TAKE INTO ACCOUNT WALL BATTER FOR THE BOULDER RETAININGWALL SURVEYING WILL PRODUCE INCORRECT LOCATIONS OF ALL TOP OF WALLS AND SHALL BE CORRECTED AT NO COST TO THE HANSON GROUP.8.WALL GEOMETRY, LOCATIONS, SLOPES AND SURCHARGE LOADS FOR THE BOULDER RETAINING WALLS WERE ASSUMED FROM THE PROJECT PLANS REFERENCED ABOVE. IF CONDITIONS VARY GREATLY IN THEFIELD FROM THOSE SHOWN ON THIS PLAN, THE HANSON GROUP MUST BE NOTIFIED PRIOR TO CONSTRUCTION OF THE BOULDER RETAINING WALLS TO REVIEW THE DESIGN AND/OR PLANS. MODIFICATIONS TO THEDESIGN AND/OR PLANS MAY BE REQUIRED AFTER THE REVIEW, AND MAY TAKE UP TO TEN BUSINESS DAYS TO COMPLETE.9.THE HANSON GROUP'S SCOPE IS LIMITED TO THE DESIGN OF THE ITEMS LISTED IN THE PROJECT SCOPE ABOVE. DESIGN OF THE REMAINING ELEMENTS, INCLUDING DRAINAGE, EROSION CONTROL, GLOBAL SLOPESTABILITY, ETC. IS BY OTHERS. CONTACT THE HANSON GROUP SHOULD ADDITIONAL ENGINEERING BE REQUESTED. NO DETAILED INSPECTIONS WERE CONDUCTED OR REQUESTED.10.THE COMPACTED BASE FOR THE BOULDER RETAINING WALLS IS TO BE BURIED INTO VIRGIN MATERIAL OR ENGINEERED FILL AS SHOWN IN THE WALL SECTIONS ALONG THE ENTIRE LENGTH OF THE WALL.11.MINOR SURCHARGE LOADING ABOVE WALLS HAVE BEEN DESIGNED FOR (50 PSF UNLESS NOTED OTHERWISE).12.GRADE AT THE TOP OF THE WALL IS TO BE RELATIVELY LEVEL (5% MAX. GRADE) UNLESS NOTED OTHERWISE. GRADE AT THE BOTTOM OF THE WALL IS TO BE RELATIVELY LEVEL (5% MAX. GRADE) UNLESS NOTEDOTHERWISE. SEE SECTIONS FOR SPECIFIC DESIGN CONDITIONS BASED ON GRADING PLANS.13.THE DRAINAGE MEDIUM IS TO BE COMPACTED OVER THE FULL HEIGHT OF THE WALL AND CAPPED WITH A 6" THICK CLAY LAYER. PROPER COMPACTION PROVIDES FOR SOLID PACKED MATERIAL, WHICH TENDS NOTTO SHIFT BEHIND THE WALL.14.INSTALL DRAINTILE AT THE BASE OF THE WALL. DRAINTILE IS TO DRAIN TO DAYLIGHT AT EACH END OF THE WALL AND INTERMEDIATELY USING WEEPS SPACED AT NO GREATER THAN TEN FEET ON CENTER OR ASREQUIRED. DRAINTILE AND DRAINAGE ARE ESSENTIAL TO KEEP THE FLUID PRESSURE REDUCED BEHIND THE WALL.15.WALL LAYOUT, ELEVATIONS, PROPERTY BOUNDARIES, GRADING, EXCAVATION, GLOBAL SLOPE STABILITY, VERIFICATION OF INFORMATION, AS WELL AS DRAINAGE IS BY OTHERS. SITE ENGINEER ANDGEOTECHNICAL ENGINEER PROVIDING SITE VERIFICATION FOR THE ABOVE ITEMS TO VERIFY THAT NO GLOBAL STABILITY CONCERNS ARE PRESENT. THESE DOCUMENTS APPLY TO STRUCTURAL DESIGN ASPECTSOF THE BOULDER RETAINING WALL ONLY.16.CONTRACTOR IS TO HAVE SUB BASE TESTING FOR COMPACTION. 95% STANDARD PROCTOR DENSITY IS TO BE ACHIEVED AT A MINIMUM FOR ALL MATERIALS. TESTING IS TO BE PERFORMED BY A LICENSEDGEOTECHNICAL FIRM AND ALL REPORTS ARE TO BE SUBMITTED TO THE HANSON GROUP.17.INSTALL SMALL ROCKS BETWEEN LARGER BOULDERS TO PROVIDE A SOLID WALL AND TO PROVIDE SUPPORT FOR THE DRAINAGE MEDIUM.18.DEPENDING ON THE DRAINAGE MEDIUM AND ON-SITE MATERIAL, THE CONTRACTOR WILL EITHER INSTALL FILTER FABRIC BEHIND THE DRAINAGE MEDIUM IN FRONT OF THE BACKFILL TO ENSURE THAT THE BACKFILLMATERIAL DOES NOT WORK OUT INTO THE DRAINAGE MEDIUM (OPTIMAL FOR A GRAVEL DRAINAGE MEDIUM) OR BETWEEN THE BOULDERS AND DRAINAGE MEDIUM (OPTIMAL FOR A SAND DRAINAGE MEDIUM).19.IN ADDITION TO THE SOIL COMPACTION TESTING OF THE SUB BASE BY A LICENSED TESTING COMPANY, THE HANSON GROUP IS TO BE CONTRACTED TO PERFORM VISUAL OBSERVATIONS OF THE BURY DEPTH,BOULDER SIZE, WALL BATTER, AND DESIGN PARAMETERS SPECIFIED TWICE FOR EACH WALL LOCATION, ONCE AT THE BOTTOM OF THE WALL AND ONCE APPROXIMATELY MIDWAY THROUGH WALL COMPLETION. INADDITION, AT THE REQUIREMENT OF THE DEVELOPER, THE HANSON GROUP IS TO PERFORM A FINAL VISUAL OBSERVATION AFTER ALL WALL CONSTRUCTION IS COMPLETE.MATERIALSBOULDERS:GRANITE BOULDERS - GEOMETRY VARIES - SEE DETAILSBACKFILL: ON-SITE BACKFILL - CL - LEAN CLAY MATERIAL (g=120 PCF, EQUIVALENT FRICTION ANGLE = 28°) UNLESS NOTED OTHERWISEDRAINAGE MEDIUM: 100% SAND OR GRAVEL MATERIAL (NO FINES)BOULDER DENSITY:g=165 PCFALLOWABLE SOIL BEARING PRESSURE: 1,500 PSF (ASSUMED - SEE SECTIONS FOR ADDITIONAL SPECIFIC WALL REQUIREMENTS)SURCHARGE:50 PSFCODES2020 MINNESOTA STATE BUILDING CODEHawkins Tree &Landscaping1776 Canterbury Rd SShakopee, MN 55379August 18, 20200.4459-29-20Boulder Retaining WallsThe Bluffs at Lake LucyChanhassen, MNRevDescriptionDate71Updated Soil Brg and Added Wall9-29-20 PLANS SHOWN LIGHT INBACKGROUND ARE FORLOCATION REFERENCE ONLY.PLAN NOTES AND ELEMENTSSHOWN LIGHT MAY NOTNECESSARILY SUPPORT THEHANSON GROUP'S DESIGN.Project Number:Date:2Sheets: ofI hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.Print Name:Signed: License Number:Date:S2Trevor Axner454703407 Kilmer Lane NorthSuite 4Plymouth, MN, 55441Tel 612-708-3572www.hansongroupmn.comCOPYRIGHT HANSON GROUP LLC 2020©Project:Client:Hawkins Tree &Landscaping1776 Canterbury Rd SShakopee, MN 553791S2 REFERENCE PLANOVERALL SITE PLAN SHOWN FORLOCATION REFERENCE ONLY4S2 REFERENCE PLANWALL 3 - PARTIAL SITE PLAN SHOWNFOR LOCATION REFERENCE ONLY5S2 REFERENCE PLANWALL 4 - PARTIAL SITE PLAN SHOWNFOR LOCATION REFERENCE ONLY6S2 REFERENCE PLANWALL 5 - PARTIAL SITE PLAN SHOWNFOR LOCATION REFERENCE ONLYSEE 2/S2 FORBOULDER WALL 1REFERENCE PLANSEE 3/S2 FORBOULDER WALL 2REFERENCE PLANSEE 4/S2 FOR BOULDERWALL 3 REFERENCE PLANAugust 18, 20200.445Boulder Retaining WallsThe Bluffs at Lake LucyChanhassen, MN72S2 REFERENCE PLANWALL 1 - PARTIAL SITE PLAN SHOWNFOR LOCATION REFERENCE ONLY3S2 REFERENCE PLANWALL 2 - PARTIAL SITE PLAN SHOWNFOR LOCATION REFERENCE ONLY7S2 REFERENCE PLANWALL 6 - PARTIAL SITE PLAN SHOWNFOR LOCATION REFERENCE ONLYSEE 5/S2 FORBOULDER WALL 4REFERENCE PLANSEE 6/S2 FORBOULDER WALL 5REFERENCE PLANSEE 7/S2 FORBOULDER WALL 6REFERENCE PLAN4'-6" MAX.1S36'-0" MAX.2S3 9'-0" MAX. 1 S4 11'-0" MA X . T Y P . 12'-0" MA X S I M . 2 S4 7'-0" MAX. 1 S5 7'-0" MAX. 1 S6 5'-0" MAX. 2 S5 6'-6" MAX.2S64'-0" MAX.1S7 7'-0" MAX.2S78S2 REFERENCE PLANWALL 7 - PARTIAL SITE PLAN SHOWNFOR LOCATION REFERENCE ONLYSEE 8/S2 FORBOULDER WALL 7REFERENCE PLAN5'-0" MAX.3S79-29-20RevDescriptionDate1Updated Soil Brg and Added Wall9-29-20 3S3 ELEVATION FILL SPACES w/SMALLER ROCKSPLACE BOULDERS ON TWOBOULDERS IN THE LAYERBELOW AS MUCH ASPOSSIBLEHEIGHT AND LENGTH OFBOULDERS MAY VARY -DIMENSION SHOWN ON SECTIONS IS THE CRITICALMINIMUM DEPTH OF BOULDERBOULDER DIMENSIONS SHOWN AREMINIMUM DEPTH OF BOULDERS ASMEASURED INTO RETAINED SOIL.HEIGHT AND WIDTH DIMENSIONSPARALLEL WITH WALL MAY VARY2S3 SECTION Project Number:Date:3Sheets: ofI hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.Print Name:Signed: License Number:Date:S3Trevor Axner454703407 Kilmer Lane NorthSuite 4Plymouth, MN, 55441Tel 612-708-3572www.hansongroupmn.comCOPYRIGHT HANSON GROUP LLC 2020©Project:Client:Hawkins Tree &Landscaping1776 Canterbury Rd SShakopee, MN 55379RevDescriptionDate1S3 SECTION 30" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS4'-6" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(42" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERSBURY FIRSTBOULDER LAYER24" MIN.4'-6" BOULDERRETAINING WALL -WALL 118.4° MIN.4121'-6" SETBACKAT 4'-6" HEIGHT6" CLAY CAPCOMPACTED FILL6'-0" BOULDERRETAINING WALL -PORTION OF WALL 210% MAX. GRADE(5.7 DEGREES MAX.)GRADE SLOPESQUICKLY DOWN 1.5'MAX. IN 5', THENLEVELS TO ROADWAYAugust 18, 20200.4458-18-20Boulder Retaining WallsThe Bluffs at Lake LucyChanhassen, MN736" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18 ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS6'-0" MAX.3S318.4° MIN.4122'-0" SETBACKAT 6'-0" HEIGHTBURY FIRST BOULDERLAYER 24" MIN.VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERS6" CLAY CAPPROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(48" WIDTH)COMPACTED FILL10% MAX. GRADE(5.7 DEGREES MAX.)33% MAX. GRADE(18.4 DEGREES MAX.) 2S4 SECTION 11'-0" BOULDERRETAINING WALL -PORTION OF WALL 2SIM. AT 12'-0" EXPOSED SECTIONProject Number:Date:4Sheets: ofI hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.Print Name:Signed: License Number:Date:S4Trevor Axner454703407 Kilmer Lane NorthSuite 4Plymouth, MN, 55441Tel 612-708-3572www.hansongroupmn.comCOPYRIGHT HANSON GROUP LLC 2020©Project:Client:Hawkins Tree &Landscaping1776 Canterbury Rd SShakopee, MN 553791S4 SECTION 9'-0" BOULDERRETAINING WALL -PORTION OF WALL 2BOULDER DIMENSIONS SHOWN AREMINIMUM DEPTH OF BOULDERS ASMEASURED INTO RETAINED SOIL.HEIGHT AND WIDTH DIMENSIONSPARALLEL WITH WALL MAY VARYAugust 18, 20200.4458-18-20Boulder Retaining WallsThe Bluffs at Lake LucyChanhassen, MN760" MIN. TYP.66" MIN. SIM.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18 ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS11'-0" MAX. TYP. 12'-0" MAX. AT SIM.6" CLAY CAPPROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(72" WIDTH TYP.78" WIDTH SIM.)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERS18.4° MIN.4123'-8" SETBACKAT 11'-0" HEIGHT4'-0" AT 12'-0" SIM.BURY FIRSTBOULDER LAYER54" MIN.COMPACTED FILL48" MIN.TYP.FILTER FABRICAS REQ'D(SEE NOTE 18 ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS9'-0" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(60" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERS18.4° MIN.4123'-0" SETBACKAT 9'-0" HEIGHTBURY FIRST BOULDERLAYER 36" MIN.COMPACTED FILL6" CLAY CAP33% MAX. GRADE(18.4 DEGREES MAX.)10% MAX. GRADE(5.7 DEGREES MAX.)25% MAX. GRADE(14.0 DEGREES)33% MAX. GRADE(18.4 DEGREES MAX.)DRAIN TILE TO DAYLIGHTTHIS WALL SECTION REQUIRES A 2,000 PSF ALLOWABLESOIL BEARING PRESSURE - A GEOTECHNICAL ENGINEERMUST BE PRESENT FOLLOWING EXCAVATION PRIOR TOSETTING BOULDERS TO CONFIRM 2,000 PSF. IF HIGHER SOILRATING IS NOT ACHIEVED, A GEOTECHNICAL ENGINEER IS TOSPECIFY THE SOIL CORRECTIONS AND/OR A DEEPER ANDWIDER GRAVEL PAD TO MEET THIS REQUIREMENT1Updated Soil Brg and Added Wall9-29-20RevDescriptionDate 2S5 SECTION 5'-0" BOULDERRETAINING WALL -PORTION OF WALL 31S5 SECTION 7'-0" BOULDERRETAINING WALL -PORTION OF WALL 2Project Number:Date:5Sheets: ofI hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.Print Name:Signed: License Number:Date:S5Trevor Axner454703407 Kilmer Lane NorthSuite 4Plymouth, MN, 55441Tel 612-708-3572www.hansongroupmn.comCOPYRIGHT HANSON GROUP LLC 2020©Project:Client:Hawkins Tree &Landscaping1776 Canterbury Rd SShakopee, MN 55379RevDescriptionDateBOULDER DIMENSIONS SHOWN AREMINIMUM DEPTH OF BOULDERS ASMEASURED INTO RETAINED SOIL.HEIGHT AND WIDTH DIMENSIONSPARALLEL WITH WALL MAY VARYAugust 18, 20200.4458-18-20Boulder Retaining WallsThe Bluffs at Lake LucyChanhassen, MN742" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18 ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS7'-0" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(54" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERS18.4° MIN.4122'-4" SETBACKAT 7'-0" HEIGHTBURY FIRST BOULDERLAYER 36" MIN.COMPACTED FILL6" CLAY CAP33% MAX. GRADE(18.4 DEGREES MAX.)25% MAX. GRADE(14.0 DEGREES MAX.)30" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS5'-0" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(42" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERSBURY FIRSTBOULDER LAYER30" MIN.18.4° MIN.4121'-8" SETBACKAT 5'-0" HEIGHT6" CLAY CAPCOMPACTED FILLRELATIVELY LEVEL33% MAX. GRADE(18.4 DEGREES MAX.) 2S6 SECTION 6'-6" BOULDERRETAINING WALL -WALL 41S6 SECTION 7'-0" BOULDERRETAINING WALL -PORTION OF WALL 3Project Number:Date:6Sheets: ofI hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.Print Name:Signed: License Number:Date:S6Trevor Axner454703407 Kilmer Lane NorthSuite 4Plymouth, MN, 55441Tel 612-708-3572www.hansongroupmn.comCOPYRIGHT HANSON GROUP LLC 2020©Project:Client:Hawkins Tree &Landscaping1776 Canterbury Rd SShakopee, MN 55379RevDescriptionDateBOULDER DIMENSIONS SHOWN AREMINIMUM DEPTH OF BOULDERS ASMEASURED INTO RETAINED SOIL.HEIGHT AND WIDTH DIMENSIONSPARALLEL WITH WALL MAY VARYAugust 18, 20200.4458-18-20Boulder Retaining WallsThe Bluffs at Lake LucyChanhassen, MN736" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS7'-0" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(48" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERSBURY FIRSTBOULDER LAYER36" MIN.18.4° MIN.4122'-4" SETBACKAT 7'-0" HEIGHT6" CLAY CAPCOMPACTED FILLRELATIVELY LEVEL33% MAX. GRADE(18.4 DEGREES MAX.)42" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS6'-6" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(54" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERSBURY FIRSTBOULDER LAYER42" MIN.18.4° MIN.4122'-2" SETBACKAT 6'-6" HEIGHT6" CLAY CAPCOMPACTED FILL15% MAX. GRADE(8.5 DEGREES MAX.)GRADE SLOPESQUICKLY DOWN 2.5' MAX.TO DRAINAGE DITCH 42" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS7'-0" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(54" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERSBURY FIRSTBOULDER LAYER36" MIN.18.4° MIN.4122'-4" SETBACKAT 7'-0" HEIGHT6" CLAY CAP33% MAX. GRADE(18.4 DEGREES)COMPACTED FILL20% MAX. GRADE(11.3 DEGREES MAX.)2S7 SECTION 7'-0" BOULDERRETAINING WALL - WALL 61S7 SECTION 4'-0" BOULDERRETAINING WALL -WALL 5Project Number:Date:7Sheets: ofI hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota.Print Name:Signed: License Number:Date:S7Trevor Axner454703407 Kilmer Lane NorthSuite 4Plymouth, MN, 55441Tel 612-708-3572www.hansongroupmn.comCOPYRIGHT HANSON GROUP LLC 2020©Project:Client:Hawkins Tree &Landscaping1776 Canterbury Rd SShakopee, MN 55379BOULDER DIMENSIONS SHOWN AREMINIMUM DEPTH OF BOULDERS ASMEASURED INTO RETAINED SOIL.HEIGHT AND WIDTH DIMENSIONSPARALLEL WITH WALL MAY VARYAugust 18, 20200.445Boulder Retaining WallsThe Bluffs at Lake LucyChanhassen, MN724" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS4'-0" MAX.PROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(36" WIDTH)3S3VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERSBURY FIRSTBOULDER LAYER18" MIN.18.4° MIN.4121'-4" SETBACKAT 4'-0" HEIGHT6" CLAY CAPCOMPACTED FILLGRADE SLOPESQUICKLY DOWN 1.0'MAX. TO DRAINAGESWALERELATIVELY LEVEL3S7 SECTION 5'-0" BOULDERRETAINING WALL -WALL 730" MIN.TYP.DRAIN TILE TO DAYLIGHTFILTER FABRICAS REQ'D(SEE NOTE 18 ON S1)PROVIDE 12" DEPTH OFDRAINAGE MEDIUMBEHIND BOULDERS5'-0" MAX.3S318.4° MIN.4121'-8" SETBACKAT 5'-0" HEIGHTBURY FIRST BOULDERLAYER 18" MIN.VERIFY FENCING /RAILING REQUIREMENTS,IF ANY, BY OTHERS6" CLAY CAPPROVIDE 6" MIN. DEPTHCOMPACTED GRAVEL ORGRANULAR BASE(42" WIDTH)COMPACTED FILL10% MAX. GRADE(5.7 DEGREES MAX.)25% MAX. GRADE(14.1 DEGREES MAX.)9-29-20RevDescriptionDate1Updated Soil Brg and Added Wall9-29-20