Updated Grading CUNNINGHAM 2ND ADDITION PLANS 7-26-229
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110.38N85°52'48"WLOT 1LOT 2CONSTRUCTIONLIMITSCONSTRUCTIONLIMITSABOVE GROUNDBIOFILTRATION BASIN 2BOT=991.30100 YR HWL=995.00EOF=995.30DT ID=988.80IE STONE=988.20SEE DETAIL 1 C5.1ABOVE GROUNDBIOFILTRATION BASIN 1BOT=990.00100 YR HWL=993.27EOF=993.50DT ID=987.50IE STONE=986.90SEE DETAIL 1 C5.1WETLAND 1TYPE 5 (PUBF)RPBCWD MEDIUM -VALUE WETLANDEX./PROP NWL=98850.4'
20.0'(MIN
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)49.7'SB-1SB-2SB-4SB-3SB-6SB-5CUNNINGHAM 2ND ADDITION
855 PLEASANT VIEW ROAD
CHANHASSEN, MN 55317
350 HWY 7, SUITE 218
EXCELSIOR, MN 55331
ADOR BESPOKE HOMES
PROJECT
ISSUE/SUBMITTAL SUMMARYDATEDESCRIPTION7/26/2022UPDATED UTILITIES..........PROJECT NUMBER:220855/5/2022CITY RESUBMITTAL6/14/2022POND 2 RELOCATION6/22/2022REVISED GRADES6/30/2022FINAL GRADES7/11/2022FINAL PLAT SUBMITTAL3/18/2022CITY SUBMITTALDRAWN BY:REVIEWED BY:MSMP..............COPYRIGHT CIVIL SITE GROUP INC.c202244263Matthew R. PavekLICENSE NO.DATEI HEREBY CERTIFY THAT THIS PLAN,SPECIFICATION, OR REPORT WASPREPARED BY ME OR UNDER MY DIRECTSUPERVISION AND THAT I AM A DULYLICENSED PROFESSIONAL ENGINEERUNDER THE LAWS OF THE STATE OFMINNESOTA.07/26/22Civil Engineering Surveying Landscape Architecture5000 Glenwood AvenueGolden Valley, MN 55422civilsitegroup.com 612-615-00604/19/2022WATERSHED RESUBMITTALREVISION SUMMARYDATEDESCRIPTIONC3.0GRADING PLAN............GENERAL GRADING NOTES:2.0' CONTOUR ELEVATION INTERVALGRADING PLAN LEGEND:GROUNDWATER INFORMATION:SEE SWPPP ON SHEETS SW1.0 - SW1.5EROSION CONTROL NOTES:01" = 30'-0"30'-0"15'-0"NKnow what'sbelow.before you dig.CallREX. 2' CONTOUR ELEVATION INTERVALSPOT GRADE ELEVATIONEMERGENCY OVERFLOWEOF=1135.52PER GEOTECHNICAL REPORT BY HAUGO GEOTECHNICAL SERVICES, DATED 01-13-22NO GROUNDWATER WAS OBSERVED AT ANY SOIL BORINGSADDITIONAL TEST PIT INVESTIGATIONS PERFORMED BY HAUGO GEOTECHNICALSERVICES DID NOT OBSERVE GROUNDWATER AT THE PROPOSED INFILTRATION BMPS1.CONTRACTOR SHALL VERIFY ALL BUILDING ELEVATIONS, (FFE, LFE, GFE), PRIOR TO CONSTRUCTION BY CROSS CHECKING WITHARCHITECTURAL, STRUCTURAL AND CIVIL ELEVATIONS FOR EQUIVALENT "100" ELEVATIONS. THIS MUST BE DONE PRIOR TOEXCAVATION AND INSTALLATION OF ANY FOOTING MATERIALS. VERIFICATION OF THIS COORDINATION SHALL BE CONFIRMED INWRITING BY CIVIL, SURVEYOR, ARCHITECTURAL, STRUCTURAL AND CONTRACTOR PRIOR TO CONSTRUCTION.2.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FORUTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT AREDAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER.3.SEE SITE PLAN FOR HORIZONTAL LAYOUT & GENERAL GRADING NOTES.4.THE CONTRACTOR SHALL COMPLETE THE SITE GRADING CONSTRUCTION (INCLUDING BUT NOT LIMITED TO SITE PREPARATION, SOILCORRECTION, EXCAVATION, EMBANKMENT, ETC.) IN ACCORDANCE WITH THE REQUIREMENTS OF THE OWNER'S SOILS ENGINEER. ALLSOIL TESTING SHALL BE COMPLETED BY THE OWNER'S SOILS ENGINEER. THE CONTRACTOR SHALL BE RESPONSIBLE FORCOORDINATING ALL REQUIRED SOIL TESTS AND INSPECTIONS WITH THE SOILS ENGINEER.5.ANY ELEMENTS OF AN EARTH RETENTION SYSTEM AND RELATED EXCAVATIONS THAT FALL WITHIN THE PUBLIC RIGHT OF WAY WILLREQUIRE A “RIGHT OF WAY EXCAVATION PERMIT”. CONTRACTOR IS RESPONSIBLE FOR AQUIRING THIS PERMIT PRIOR TO CONSTRUCTION6.ALL EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE. CONTACT "GOPHER STATE ONE CALL" (651-454-0002 OR 800-252-1166) FORUTILITY LOCATIONS, 48 HOURS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL REPAIR OR REPLACE ANY UTILITIES THAT AREDAMAGED DURING CONSTRUCTION AT NO COST TO THE OWNER.7.GRADING AND EXCAVATION ACTIVITIES SHALL BE PERFORMED IN ACCORDANCE WITH THE NATIONAL POLLUTION DISCHARGEELIMINATION SYSTEM (NPDES) PERMIT REQUIREMENTS & PERMIT REQUIREMENTS OF THE CITY.8.PROPOSED SPOT GRADES ARE FLOW-LINE FINISHED GRADE ELEVATIONS, UNLESS OTHERWISE NOTED.9.GRADES OF WALKS SHALL BE INSTALLED WITH 5% MAX. LONGITUDINAL SLOPE AND 1% MIN. AND 2% MAX. CROSS SLOPE, UNLESSOTHERWISE NOTED.3.PROPOSED SLOPES SHALL NOT EXCEED 3:1 UNLESS INDICATED OTHERWISE ON THE DRAWINGS. MAXIMUM SLOPES IN MAINTAINEDAREAS IS 4:14.PROPOSED RETAINING WALLS, FREESTANDING WALLS, OR COMBINATION OF WALL TYPES GREATER THAN 4' IN HEIGHT SHALL BEDESIGNED AND ENGINEERED BY A REGISTERED RETAINING WALL ENGINEER. DESIGN DRAWINGS SHALL BE SUBMITTED FOR REVIEW ANDAPPROVAL PRIOR TO CONSTRUCTION.5.THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTENANCE OF GRADE STAKES THROUGHOUT THE DURATION OF CONSTRUCTION TOESTABLISH PROPER GRADES. THE CONTRACTOR SHALL ALSO BE RESPONSIBLE FOR A FINAL FIELD CHECK OF FINISHED GRADESACCEPTABLE TO THE ENGINEER/LANDSCAPE ARCHITECT PRIOR TO TOPSOIL AND SODDING ACTIVITIES.6.IF EXCESS OR SHORTAGE OF SOIL MATERIAL EXISTS, THE CONTRACTOR SHALL TRANSPORT ALL EXCESS SOIL MATERIAL OFF THE SITETO AN AREA SELECTED BY THE CONTRACTOR, OR IMPORT SUITABLE MATERIAL TO THE SITE.7.EXCAVATE TOPSOIL FROM AREAS TO BE FURTHER EXCAVATED OR REGRADED AND STOCKPILE IN AREAS DESIGNATED ON THE SITE. THECONTRACTOR SHALL SALVAGE ENOUGH TOPSOIL FOR RESPREADING ON THE SITE AS SPECIFIED. EXCESS TOPSOIL SHALL BE PLACED INEMBANKMENT AREAS, OUTSIDE OF BUILDING PADS, ROADWAYS AND PARKING AREAS. THE CONTRACTOR SHALL SUBCUT CUT AREAS,WHERE TURF IS TO BE ESTABLISHED, TO A DEPTH OF 6 INCHES. RESPREAD TOPSOIL IN AREAS WHERE TURF IS TO BE ESTABLISHED TO AMINIMUM DEPTH OF 6 INCHES.8.FINISHED GRADING SHALL BE COMPLETED. THE CONTRACTOR SHALL UNIFORMLY GRADE AREAS WITHIN LIMITS OF GRADING, INCLUDINGADJACENT TRANSITION AREAS. PROVIDE A SMOOTH FINISHED SURFACE WITHIN SPECIFIED TOLERANCES, WITH UNIFORM LEVELS ORSLOPES BETWEEN POINTS WHERE ELEVATIONS ARE SHOWN, OR BETWEEN SUCH POINTS AND EXISTING GRADES. AREAS THAT HAVEBEEN FINISH GRADED SHALL BE PROTECTED FROM SUBSEQUENT CONSTRUCTION OPERATIONS, TRAFFIC AND EROSION. REPAIR ALLAREAS THAT HAVE BECOME RUTTED BY TRAFFIC OR ERODED BY WATER OR HAS SETTLED BELOW THE CORRECT GRADE. ALL AREASDISTURBED BY THE CONTRACTOR'S OPERATIONS SHALL BE RESTORED TO EQUAL OR BETTER THAN ORIGINAL CONDITION OR TO THEREQUIREMENTS OF THE NEW WORK.9.PRIOR TO PLACEMENT OF THE AGGREGATE BASE, A TEST ROLL WILL BE REQUIRED ON THE STREET AND/OR PARKING AREA SUBGRADE.THE CONTRACTOR SHALL PROVIDE A LOADED TANDEM AXLE TRUCK WITH A GROSS WEIGHT OF 25 TONS. THE TEST ROLLING SHALL BEAT THE DIRECTION OF THE SOILS ENGINEER AND SHALL BE COMPLETED IN AREAS AS DIRECTED BY THE SOILS ENGINEER. THE SOILSENGINEER SHALL DETERMINE WHICH SECTIONS OF THE STREET OR PARKING AREA ARE UNSTABLE. CORRECTION OF THE SUBGRADESOILS SHALL BE COMPLETED IN ACCORDANCE WITH THE REQUIREMENTS OF THE SOILS ENGINEER. NO TEST ROLL SHALL OCCUR WITHIN10' OF ANY UNDERGROUND STORM RETENTION/DETENTION SYSTEMS.10. TOLERANCES10.1.THE BUILDING SUBGRADE FINISHED SURFACE ELEVATION SHALL NOT VARY BY MORE THAN 0.30 FOOT ABOVE, OR 0.30 FOOT BELOW,THE PRESCRIBED ELEVATION AT ANY POINT WHERE MEASUREMENT IS MADE.10.2.THE STREET OR PARKING AREA SUBGRADE FINISHED SURFACE ELEVATION SHALL NOT VARY BY MORE THAN 0.05 FOOT ABOVE, OR0.10 FOOT BELOW, THE PRESCRIBED ELEVATION OF ANY POINT WHERE MEASUREMENT IS MADE.10.3.AREAS WHICH ARE TO RECEIVE TOPSOIL SHALL BE GRADED TO WITHIN 0.30 FOOT ABOVE OR BELOW THE REQUIRED ELEVATION,UNLESS DIRECTED OTHERWISE BY THE ENGINEER.10.4.TOPSOIL SHALL BE GRADED TO PLUS OR MINUS 1/2 INCH OF THE SPECIFIED THICKNESS.11.MAINTENANCE11.1.THE CONTRACTOR SHALL PROTECT NEWLY GRADED AREAS FROM TRAFFIC AND EROSION, AND KEEP AREA FREE OF TRASH ANDDEBRIS.11.2.CONTRACTOR SHALL REPAIR AND REESTABLISH GRADES IN SETTLED, ERODED AND RUTTED AREAS TO SPECIFIED TOLERANCES.DURING THE CONSTRUCTION, IF REQUIRED, AND DURING THE WARRANTY PERIOD, ERODED AREAS WHERE TURF IS TO BEESTABLISHED SHALL BE RESEEDED AND MULCHED.11.3.WHERE COMPLETED COMPACTED AREAS ARE DISTURBED BY SUBSEQUENT CONSTRUCTION OPERATIONS OR ADVERSE WEATHER,CONTRACTOR SHALL SCARIFY, SURFACE, RESHAPE, AND COMPACT TO REQUIRED DENSITY PRIOR TO FURTHER CONSTRUCTION.NOTE:·LOTS ARE CUSTOM GRADED LOTS AND FINALGRADING PLANS WILL BE COMPLETED AT TIME OFLOT DEVELOPMENT AND FINALIZED HOUSE PLANS.RPBCWD SITE SPECIFIC NOTES:1.NATURAL TOPOGRAPHY AND SOIL CONDITIONS MUST BE PROTECTED,INCLUDING RETENTION ONSITE OF NATIVE TOPSOIL TO THE GREATESTEXTENT POSSIBLE.2.SOIL SURFACES COMPACTED DURING CONSTRUCTION AND REMAININGPERVIOUS UPON COMPLETION OF CONSTRUCTION MUST BEDECOMPACTED TO ACHIEVE:2.1.A SOIL COMPACTION TESTING PRESSURE OF LESS THAN 1,400KILOPASCALS OR 200 POUNDS PER SQUARE INCH IN THE UPPER 12INCHES OF SOIL OR2.2.a BULK DENSITY OF LESS THAN 1.4 RAMS PER CUBIC CENTIMETER OR976 POUNDS PER CUBIC FOOT IN THE UPPER 12 INCHES OF SOIL.3.IN ADDITION, UTILITIES, TREE ROOTS AND OTHER EXISTING VEGETATIONMUST BE PROTECTED UNTIL FINAL REVEGETATION OR OTHERSTABILIZATION OF THE SITE.4.INFILTRATION FACILITIES MUST NOT BE EXCAVATED TO WITHIN 3 FEETFINAL GRADE UNTIL THE CONTRIBUTING DRAINAGE AREA HAS BEENCONSTRUCTED AND FULLY STABILIZED. ANY ACCUMULATED SEDIMENT INAN INFILTRATION FACILITY MUST BE REMOVED IN MANNER THATPREVENTS COMPACTION OF THE FACILITY BOTTOM. TO PROVIDE AWELL-AERATED, HIGHLY POROUS SURFACE, THE SOILS BELOW ANINFILTRATION PRACTICE MUST BE LOOSENED TO A MINIMUM DEPTH OF 18INCHES PRIOR TO INSTALLATION OR PLANTING.5.TOPSOIL TO BE INSTALLED AS PART OF THE SITE RESTORATION MUSTCONTAIN AT LEAST 5 PERCENT ORGANIC CONTENT CONSISTENT WITH THEDISTRICT'S TOPSOIL DEFINITION. .6.All EROSION AND SEDIMENT CONTROL FACILITIES AND SOIL STABILIZATIONMEASURES MUST BE INSPECTED TO ENSURE INTEGRITY ANDEFFECTIVENESS. ALL NONFUNCTIONAL BMPS MUST BE REPAIRED,REPLACED OR SUPPLEMENTED WITHIN 48 HOURS OF DISCOVERY ANDPRIOR TO THE NEXT PRECIPITATION EVENT UNLESS ADVERSECONDITIONS PRECLUDE ACCESS TO THE RELEVANT AREA OF THE SITE, INWHICH CASE THE REPAIR MUST BE COMPLETED AS SOON AS CONDITIONSALLOW. WHEN ACTIVE LAND-DISTURBING ACTIVITIES ARE NOT UNDERWAY, THESE RESPONSIBILITIES MUST BE PERFORMED AT LEAST WEEKLYUNTIL VEGETATIVE COVER IS ESTABLISHED. A LOG OF ACTIVITIES UNDERTHIS SECTION FOR INSPECTION BY THE DISTRICT ON REQUEST MUST BEMAINTAINED.GRADING LIMIT -TREES PROTECTEDGRADING LIMIT -TREES PROTECTEDCITY OF CHANHASSEN SITE SPECIFIC NOTES:1.IF HAULING FROM/TO A SITE IN CHANHASSEN WITH 50 CY OR MORE OFMATERIAL A SEPARATE GRADING PERMIT IS REQUIRED FOR THAT SITEBIOFILTRATION BASIN SEQUENCING NOTES:·INSTALL SILT FENCE AND/OR OTHER APPROPRIATE TEMPORARY EROSION CONTROLDEVICES TO PREVENT SEDIMENT FROM LEAVING OR ENTERING THE PRACTICEDURING CONSTRUCTION.·WHEN ROUGH GRADING, IF BIORETENTION AREAS ARE BEING USED AS TEMPORARYSEDIMENT BASINS LEAVE A MINIMUM 3 FEET OF COVER OVER THE PRACTICE TOPROTECT THE UNDERLYING SOILS FROM CLOGGING.·CONSTRUCT BIORETENTION DEVICES UPON STABILIZATION OF CONTRIBUTING AREA.