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Home My WebLink AboutAR Stream Buffer Mitigation PlanXXX X XXXXX XXDATE:JOB NUMBER:DESIGN BY:DRAWN BY:CHECK BY:Site Plan,Noxious WeedControl, NotesSHEET:1 OF 2 12/28/2015 15‐159 ES EARC ESNO. DATE NOTES PROJECT: CRITICAL AREA MITIGATION PLAN Avana Ridge PUD Renton, Washington Sewall Wetland Consulting, Inc. PO Box 880 ‐ Fall City, Washington 98024 Phone: 253‐859‐0515PRIOR TO PLANT INSTALLATION, CONTROL NOXIOUS WEEDS WITHIN THE HATCHED AREA SHOWN ON THIS DETAIL. TARGET NOXIOUS WEED SPECIES SHALL INCLUDETHE FOLLOWING: ALL CLASS "A", "B", AND "C" NOXIOUS WEEDS (INCLUDING NON‐REGULATED "B" AND "C" NOXIOUS WEEDS) IDENTIFIED ON THE LATEST KINGCOUNTY NOXIOUS WEED LIST. DURING NOXIOUS WEED CONTROL WORK, EXISTING NATIVE VEGETATION SHALL BE PROTECTED FROM DAMAGE. ALL NOXIOUSWEED CONTROL CUTTINGS AND DEBRIS SHALL BE REMOVED FROM THE SITE.CONTROL METHODS:1. REDUCE TOP GROWTH OF NOXIOUS WEEDS. ACCEPTABLE METHODS INCLUDE: WALK BEHIND OR TRACTOR MOUNTED MOWER, EXCAVATOR WITHBUCKET AND THUMB, POWER SAW, BRUSH HOG, LINE TRIMMER, LOPPERS, CLIPPERS, HAND PULLING, OR APPROVED EQUAL.2. GRUB OUT LARGE ROOT CROWNS AND MAJOR ROOTS BY HAND USING CLAW MATTOCK, PULASKI, OR APPROVED EQUAL.3. SPOT APPLY RODEO® HERBICIDE TO RE‐GROWTH. HERBICIDE SHALL BE APPLIED BY A WASHINGTON STATE LICENSED COMMERCIAL APPLICATORHAVING A CURRENT "AQUATIC" (Q) ENDORSEMENT.NOXIOUS WEED CONTROL REQUIREMENTS:11NUNDERGROUND UTILITY LOCATIONS SHOWN ARE APPROXIMATE.UTILITY LOCATIONS AND CHARACTERISTICS SHOWN ON THIS DRAWING, IF ANY,ARE BASED ON THE FIELD LOCATION OF THE APPARENT SURFACE EVIDENCE OFEXISTING STRUCTURES. THE UNDERGROUND ROUTING AND CONDITION OFBURIED UTILITIES HAS NOT BEEN VERIFIED OR CONFIRMED. ADDITIONAL UTILITYLOCATION AND MAPPING MAY BE REQUIRED. FIELD LOCATE, VERIFY DEPTH OF,AND ADEQUATELY PROTECT ALL UTILITIES PRIOR TO THE START OF WORK.GENERAL NOTES:1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH CITY OF RENTON CODES,ORDINANCES, AND APPROVED PERMIT CONDITIONS.2. BEFORE THE START OF ANY CONSTRUCTION, A PRE‐CONSTRUCTION MEETING MUSTBE HELD BETWEEN CITY OF RENTON, THE OWNER, AND THE CONTRACTOR.3. A COPY OF THESE PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS INPROGRESS.4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARDS,SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDEDACTIONS TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TOPROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF THE WORKSHOWN ON THESE DRAWINGS. ANY WORK WITHIN THE TRAVELED RIGHT‐OF‐WAYTHAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE TRAFFIC CONTROL INACCORDANCE WITH ANY AND ALL CITY OF RENTON STANDARDS.5. SITE CONDITIONS MAY VARY BASED ON SEASON AND/OR TIME OF YEAR.CONTRACTOR SHALL ACCOMMODATE REALIZED AND ANTICIPATED SITE CONDITIONSWHEN COMPLETING THE WORK SHOWN ON THIS PLAN.MITIGATION PLAN NOTES:1. THE BOUNDARY/TOPOGRAPHIC MAP AND SITE PLAN USED TO GENERATE THIS PLANWAS PROVIDED BY DR STRONG CONSULTING ENGINEERS, INC. (620 7TH AVE ‐KIRKLAND, WASHINGTON 98033. SOURCE DRAWINGS HAVE BEEN MODIFIED FORVISUAL ENHANCEMENT. MAP DATE REFERENCE: 12/21/2015.MITIGATION PLAN SHEET INDEX: SHEET NUMBER DESCRIPTION 1SITE PLAN, NOXIOUS WEED CONTROL, NOTES2 PLANTING PLAN, MONITORING & MAINTENANCECONSTRUCTION SEQUENCE:1. FLAG LIMITS OF PLANTING AREA.2. REQUEST AND ATTEND PRE‐CONSTRUCTION MEETING WITH OWNER AND CITY OFRENTON.3. CONTROL NOXIOUS WEED SPECIES WITHIN THE AREAS SHOWN IN DETAIL 1‐1.4. INSTALL NATIVE PLANTS (SEE SHEET 2).5. PLACE MULCH AT BASE OF PLANTS (SEE SHEET 2).6. CLEAN‐UP AND DEMOBILIZE FROM SITE.7. REQUEST FROM AND ATTEND INSPECTION WITH OWNER.8. OWNER TO COMPLETE AS‐BUILT AND SUBMIT TO CITY OF RENTON.9. CONTRACTOR TO PROVIDE 1 YEAR OF MAINTENANCE UNDER DIRECTION OF OWNER.FUTURE MAINTENANCE TO BE PROVIDED BY OWNER.10.OWNER TO COMPLETE 5 YEARS OF MONITORING.SITE PLAN LEGEND50' STANDARD STREAM BUFFER LIMITS9,115 SF STREAM BUFFER REDUCTION9,527 SF STREAM BUFFER EXPANSION11,500 SF ENHANCEMENT PLANTINGS ‐ SEE DETAIL 2‐1SPLIT RAIL FENCING AT BUFFER LIMITS (1,060 LF) ‐ SEE DETAIL 2‐3CRITICAL AREA SIGNAGE AT BUFFER LIMITS (13 TOTAL) ‐ SEE DETAIL 2‐3SCALE IN FEETCONTOUR INTERVAL: 2 FOOT404020020SE 172ND STREETSR 515 (BENSON DRIVE)BE N S O N R O A D TYPE Ns STREAMTYPE Ns STREAM80400NKnow what'sR25'25'50'50'CLIENT: PNW HOLDINGS, LLC 9675 SE 36th Street ‐ Mercer Island, WA 98040 WEST BUILDINGEAST BUILDING DATE:JOB NUMBER:DESIGN BY:DRAWN BY:CHECK BY:Planting Plan,Monitoring &MaintenanceSHEET:2 OF 2 12/28/2015 15‐159 ES EARC ESNO. DATE NOTES PROJECT: CRITICAL AREA MITIGATION PLAN Avana Ridge PUD Renton, Washington CLIENT: PNW HOLDINGS, LLC 9675 SE 36th Street ‐ Mercer Island, WA 98040 Sewall Wetland Consulting, Inc. PO Box 880 ‐ Fall City, Washington 98024 Phone: 253‐859‐0515SPLIT RAIL FENCE AND CRITICAL AREA SIGN INSTALLATION DETAILNO SCALE32PLAN GOALS, OBJECTIVES, & PERFORMANCE STANDARDSGOAL:TO SUCCESSFULLY ESTABLISH ANATIVE PLANT COMMUNITYWITHIN THE STREAM BUFFERAREAS SHOWN ON THIS PLAN.TO LIMIT NOXIOUS WEED SPECIESWITHIN THE STREAM BUFFERAREAS SHOWN ON THIS PLAN.OBJECTIVE:TO INSTALL AND SUCCESSFULLYESTABLISH DENSELY PLANTED NURSERYGROWN TREES AND SHRUBS.TO PROVIDE FULL INITIAL CONTROL OFNOXIOUS WEED SPECIES AND THEN TOMINIMIZE THE GENERAL PRESENCE OFNOXIOUS WEED SPECIES .PURPOSE OF AND NEED FOR PLAN:THE PURPOSE OF THIS PLAN IS TO DESCRIBE THE STREAM BUFFER MODIFICATIONREQUIRED FOR THE CONSTRUCTION OF A PLANNED URBAN DEVELOPMENT (PUD)LOCATED IN RENTON, WASHINGTON.PLAN GOALS, OBJECTIVES, AND PERFORMANCE STANDARDS:PLAN GOALS, OBJECTIVES, AND PERFORMANCE STANDARDS ARE OUTLINED IN THETABLE BELOW. THE GOALS AND OBJECTIVES OF THIS PLAN ARE CONSIDEREDACHIEVED WHEN THE PERFORMANCE STANDARDS ARE SATISFIED.MONITORING PLAN (DURATION = 5 YEARS):AS‐BUILTSCHEDULE: IMMEDIATELY FOLLOWING CONSTRUCTIONFOLLOWING COMPLETION OF THE WORK SHOWN ON THIS PLAN, A QUALIFIEDPROFESSIONAL SHALL PREPARE AN AS‐BUILT. THE AS‐BUILT SHALL SUMMARIZE THECOMPLETED WORK AS WELL AS ANY DEVIATIONS FROM THE APPROVED VERSION OFTHIS PLAN.IN ADDITION TO THE AS‐BUILT, BASELINE MONITORING DATA SHALL BE COLLECTEDAND PERMANENT PHOTO POINTS SHALL BE ESTABLISHED TO DOCUMENTREPRESENTATIVE CONDITIONS WITHIN ENHANCED STREAM BUFFER AREAS.BASELINE MONITORING DATA COLLECTED AND REPORTED WITH THE AS‐BUILTSHALL BE CONSISTENT WITH THAT DESCRIBED FOR ANNUAL MONITORING.THE AS‐BUILT AND BASELINE MONITORING DATA SHALL BE SUBMITTED TO THE CITYOF RENTON NO LATER THAN 30 DAYS FROM THE DATE THAT THE WORK SHOWN ONTHIS PLAN HAS BEEN COMPLETED.ANNUAL MONITORINGSCHEDULE: ANNUALLY FOR 5 YEARS FOLLOWING PLANT INSTALLATIONFOLLOWING ACCEPTANCE OF THE AS‐BUILT, ANNUAL MONITORING SHALL BECOMPLETED FOR A PERIOD OF FIVE (5) YEARS. ANNUAL MONITORING SHALL BECOMPLETED BY A QUALIFIED PROFESSIONAL AND SHALL COMPRISE A SITEINVESTIGATION AND REPORTING PER THE FOLLOWING INTERVAL:QUARTERLY DURING THE FIRST YEAR (YEAR 1) FOLLOWING PLANTINSTALLATION; ANDIN AUGUST OR SEPTEMBER OF THE SECOND THROUGH FIFTH YEARS (YEAR 2THROUGH YEAR 5) FOLLOWING INITIAL PLANT INSTALLATION.THE PURPOSE OF THE DETAILED SITE ASSESSMENTS IS TO EVALUATE CONDITIONSWITHIN ENHANCED STREAM BUFFER AREAS PER THE CURRENT YEAR'SPERFORMANCE STANDARDS. THE FOLLOWING INFORMATION SHALL BE COLLECTEDAND ASSESSED RELATIVE TO THE PERFORMANCE STANDARDS ESTABLISHED FOR THEPROJECT:THE PERCENT SURVIVAL OF INSTALLED PLANT STOCK (YEAR 1 AND YEAR 2ONLY). A DIRECT COUNT INVENTORY AND ASSESSMENT OF ALL INSTALLEDPLANTS SHALL BE USED TO EVALUATE PERCENT SURVIVAL. THE RATIONALEFOR POOR CONDITIONS, IF PRESENT, WILL BE DETERMINED TO THE EXTENTFEASIBLE.THE PERCENT COVERAGE PROVIDED BY INSTALLED PLANT SPECIES (ALLYEARS). INSTALLED PLANT STOCK PERCENT COVERAGE SHALL BE ASSESSEDUSING APPROPRIATELY SIZED SAMPLE PLOTS OR LINE INTERCEPT TRANSECTS.THE SPECIES COMPOSITION OF AND PERCENT COVERAGE PROVIDED BYNOXIOUS WEED SPECIES (ALL YEARS). SPECIES COMPOSITION AND PERCENTCOVERAGE BY NOXIOUS WEEDS SHALL BE ASSESSED USING SAMPLE PLOTS ORLINE INTERCEPT TRANSECTS .IN ADDITION TO THE DATA COLLECTION AND ANALYSIS REGARDING PLANTCOMMUNITY CONDITIONS, PHOTOGRAPHS OF ENHANCED STREAM BUFFER AREASSHALL BE TAKEN FROM THE PERMANENT PHOTO POINTS ESTABLISHED DURING THEAS‐BUILT.THE RESULTS OF EACH ANNUAL MONITORING SHALL BE SUMMARIZED IN AWRITTEN REPORT AND SUBMITTED TO THE CITY OF RENTON NO LATER THANOCTOBER 31 OF THE RESPECTIVE MONITORING YEAR.CONTINGENCY PLANSHOULD ANY MONITORING ASSESSMENT REVEAL THAT THE PERFORMANCESTANDARDS FOR THE RESPECTIVE YEAR ARE NOT SATISFIED, THE PERMITTEE SHALLWORK WITH THE CITY OF RENTON TO DEVELOP A CONTINGENCY PLAN TO ADDRESSTHE DEFICIENCY(IES). CONTINGENCY PLANS CAN INCLUDE, BUT ARE NOT LIMITED TO,THE FOLLOWING ACTIONS:1. ADDITIONAL PLANT INSTALLATION;2. EROSION CONTROL;3. HERBIVORY PROTECTION;4. MODIFICATION TO THE IRRIGATION REGIME; AND/OR5. PLANT SUBSTITUTIONS OF TYPE, SIZE, QUANTITY, AND LOCATION.SUCH CONTINGENCY PLAN SHALL BE SUBMITTED TO THE CITY OF RENTON NO LATERTHAN JANUARY 31 OF ANY YEAR WHEN DEFICIENCIES ARE DISCOVERED. UNLESSOTHERWISE APPROVED BY THE CITY OF RENTON, ACTIONS SPECIFIED ON ANAPPROVED CONTINGENCY PLAN MUST BE COMPLETED WITHIN 60 DAYS. IF THEFAILURE IS SUBSTANTIAL, THE CITY OF RENTON MAY EXTEND THE COMPLIANCEMONITORING PERIOD FOR THE STREAM BUFFER ENHANCEMENT WORK.MAINTENANCE PLANTHIS SECTION PROVIDES A GENERAL OVERVIEW OF THE MAINTENANCE PROGRAMNECESSARY TO ENSURE THE PERFORMANCE STANDARDS ESTABLISHED FOR THIS PLANARE SATISFIED.NOXIOUS WEED CONTROLFOLLOWING PLANT INSTALLATION AND AT REGULAR INTERVALS DURING THEMONITORING PERIOD, NOXIOUS WEED CONTROL SHALL OCCUR ON A SPOTTREATMENT BASIS WITHIN THE AREAS SHOWN IN DETAIL 1‐1 AND PER THESPECIFICATIONS DESCRIBED IN DETAIL 1‐1.GENERAL MAINTENANCEINSTALLED PLANTS SHALL BE MAINTAINED AT REGULAR INTERVALS DURING THEMONITORING PERIOD TO PROMOTE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUSGROWTH OF INSTALLED PLANTS.GENERAL MAINTENANCE SHALL INCLUDE:WEEDING THE BASE OF EACH INSTALLED PLANT.RE‐APPLYING BARK MULCH TO MAINTAIN A 6" MINIMUM APPLIED THICKNESS ‐YEAR 1 ONLY.THE PRUNING OF INSTALLED PLANTS TO REMOVE DEAD WOOD AND PROMOTEVIGOROUS PLANT GROWTH AND PROPER FORM.THE REPLACEMENT OF PLANTS IN DISTRESS AND/OR THAT ARE DISEASED.THE REMOVAL OF TRASH, LITTER, AND/OR OTHER NON‐DECOMPOSING DEBRIS.TEMPORARY IRRIGATIONTEMPORARY IRRIGATION SHALL BE PROVIDED FOR TWO (2) GROWING SEASONSFOLLOWING PLANT INSTALLATION PER THE SPECIFICATIONS SHOWN ON THIS PLAN.PERFORMANCE STANDARDS:100% SURVIVAL BY INSTALLED PLANT STOCK AFTER THE FIRST GROWING SEASON. THISSTANDARD CAN BE ACHIEVED STRICTLY THROUGH SURVIVAL OR THROUGH ACOMBINATION OF SURVIVAL AND PLANT REPLACEMENT.80% SURVIVAL BY INSTALLED PLANT STOCK AFTER THE SECOND GROWING SEASON.60% AVERAGE COVERAGE BY NATIVE WOODY PLANT SPECIES AFTER THE FIFTH GROWINGSEASON. UP TO 20% OF THE NATIVE WOODY PLANT SPECIES COVERAGE MAY BECOMPRISED OF DESIRABLE NATIVE COLONIZING SPECIES.LESS THAN 10% COVERAGE BY ALL CLASS "A", "B", AND "C" NOXIOUS WEEDS (INCLUDINGNON‐REGULATED "B" AND "C" NOXIOUS WEEDS) IDENTIFIED ON THE LATEST KING COUNTYNOXIOUS WEED LIST.MONITORING PLAN & MAINTENANCE PLANNATIVE SOILCUT CIRCLING ROOTSAND SPREAD OR"BUTTERFLY" ROOTBALL. MIN. 1.5 TIMES THEWIDTH OF THE ROOTBALLBACKFILL WITH NATIVESOIL. COMPACT BY HAND.PLACE TOP OF ROOTBALL1 INCH ABOVE THE LEVELOF NATIVE SOIL. BEFOREMULCH, POTTING SOILSHOULD BE VISIBLE.MULCH AT BASE OF PLANT(6" MINIMUM THICKNESS)PLACE TOP OF ROOTBALL1 INCH ABOVE THE LEVELOF NATIVE SOIL. BEFOREMULCH, POTTING SOILSHOULD BE VISIBLE.CUT CIRCLING ROOTSAND SPREAD OR"BUTTERFLY" ROOTBALL.MULCH AT BASE OF PLANT(6" MINIMUM THICKNESS)NATIVE SOILBACKFILL WITH NATIVESOIL. COMPACT BY HAND. MIN. 1.5 TIMES THEWIDTH OF THE ROOTBALLPLANT INSTALLATION DETAILS22NO SCALEMULCH SPECIFICATION:MULCH SHALL BE COMMERCIALLY AVAILABLE "DOT WOOD CHIP MULCH"(WWW.PACIFICTOPSOILS.COM; 425‐337‐2700), ARBORIST CHIPS, OR APPROVED EQUAL.MULCH SHALL NOT CONTAIN RESIN, TANNIN, OR OTHER COMPOUNDS IN QUANTITIESTHAT WOULD BE DETRIMENTAL TO PLANT LIFE. MULCH SHALL NOT BE DERIVED FROMSTUMP GRINDINGS AND SHALL NOT CONTAIN SOIL. HOG FUEL OR EQUAL IS NOTACCEPTABLE. SUBJECT TO REVIEW BY THE PLAN DESIGNER, LOCAL ARBORIST AND/ORCOMMERCIAL TREE TRIMMING COMPANIES MAY BE ALTERNATIVE ACCEPTABLE MATERIALSOURCES (WWW.CHIPDROP.IN).PLANTING SCHEMATIC NOTES:1. PROTECT AND ACCOMMODATE EXISTING NATIVE VEGETATION WITHIN EACH PLANTING AREA.2. PLANT MATERIAL QUALITY AND LOCATIONS SHALL BE INSPECTED BY THE PLAN DESIGNER PRIOR TO INSTALLATION.3. PLANT LOCATIONS SHOWN ARE APPROXIMATE. ADJUST PLANT LOCATIONS TO ACCOMMODATE SITE CONDITIONS, TO PRESERVEAND PROTECT EXISTING NATIVE VEGETATION, AND/OR PER PLAN DESIGNER AT TIME OF INSTALLATION.4. PRIOR TO PLANT INSTALLATION, CONTROL NOXIOUS WEED SPECIES ‐ SEE "NOXIOUS WEED CONTROL SPECIFICATIONS" (SHEET 1).5. SEE DETAIL 2‐2 FOR PLANT INSTALLATION DETAILS.18"12"CRITICAL AREA SIGN NOTES:1. SIGN SHALL BE .040 INCH ALUMINUM WITH BAKED ENAMEL.2. SIGN FACE SHALL BE A SILK SCREEN DESIGN ACCEPTABLE TOTHE CITY OF RENTON.3. SIGN PLATE SHALL BE GREEN IN A COLOR ACCEPTABLE TOTHE CITY OF RENTON.4. ATTACH SIGN TO FENCE USING GALVANIZED LAG BOLTS.SIGNS SHALL FACE AWAY FROM CRITICAL AREA BUFFER.IRRIGATION SHALL BE PROVIDED FOR 2 GROWING SEASONS FOLLOWING PLANT INSTALLATION.IRRIGATION SHALL BE PROVIDED BY AN ABOVE GROUND AUTOMATIC SPRINKLER OR AUTOMATICDRIP SYSTEM THAT PROVIDES A MINIMUM RAINFALL EQUIVALENT OF 1 INCH PER WEEK FROMJUNE 15 THROUGH SEPTEMBER 15. IRRIGATION SHALL BE APPLIED IN A MANNER THATMAINTAINS PLANT HEALTH, PREVENTS WILTING, AND PROMOTES DEEP PLANT ROOT SYSTEMS.TEMPORARY IRRIGATION REQUIREMENTS: SYMBOL COMMON NAME SCIENTIFIC NAME SIZE/FORM QUANTITY SPACINGDOUGLAS‐FIRPSEUDOTSUGA MENZIESII1" MIN CAL., CONTAINERIZED 58 AS‐SHOWNWESTERN REDCEDARTHUJA PLICATA1" MIN CAL., CONTAINERIZED 80 AS‐SHOWNVINE MAPLEACER CIRCINATUM2 GALLON CONTAINERIZED 47 AS‐SHOWNINDIAN PLUM OEMLERIA CERASIFORMIS2 GALLON CONTAINERIZED 80 AS‐SHOWNREDLFOWER CURRANTRIBES SANGUINEUM2 GALLON CONTAINERIZED 33 AS‐SHOWNCLUSTER ROSEROSA PISCOCARPA 2 GALLON CONTAINERIZED 51 AS‐SHOWNSALMONBERRYRUBUS SPECTABILIS2 GALLON CONTAINERIZED 43 AS‐SHOWNCOMMON SNOWBERRYSYMPHORICARPOS ALBUS2 GALLON CONTAINERIZED 68 AS‐SHOWN TOTAL 460PLANT SCHEDULE:PLANTS SHALL BE NATIVE TO THE PACIFIC NORTHWEST, PREFERABLY THE PUGET SOUND REGION OF WASHINGTON STATE. PLANTSSHALL BE PROPAGATED FROM NATIVE STOCK; NO CULTIVARS OR HORTICULTURAL VARIETIES ARE ALLOWED.PLANTS SHALL BE NORMAL IN PATTERN OF GROWTH, HEALTHY, WELL‐BRANCHED AND HAVE ALL LEADERS AND BUDS INTACT. TREESSHALL NOT HAVE SUNSCALDS, DISFIGURING KNOTS, FRESH CUTS OF LIMBS, DAMAGED LEADERS, AND/OR DEFORMED TRUNKS.CONTAINERIZED PLANT STOCK SHALL BE GROWN IN A CONTAINER LONG ENOUGH TO DEVELOP A ROOT SYSTEM THAT REACHES THEEDGES OF THE CONTAINER IN WHICH IT HAS GROWN. TREES AND SHRUBS SHALL BE WELL ROOTED AND SHALL HAVE SUFFICIENTROOT MASS TO HOLD TOGETHER THE SOIL, IN WHICH PLANT IS GROWING, WHEN REMOVED FROM THE POT.NATIVE SOIL58" MINUS CRUSHED ROCKBACKFILL. COMPACT TO 95%MIN. DENSITYMOUND TODRAIN AWAYFROM POST6" MIN. DIA. SQUARE ORROUND ROUGH CUT WOODPOST ‐ UNTREATED (TYP)5" MIN. DIA. ROUGHCUT WOOD RAIL ‐UNTREATED (TYP)10' MAX3' MIN.12" ‐ 18"2' MIN.SPLIT RAIL FENCE NOTES:1. FENCE SHALL BE COMMERCIALLY AVAILABLE POST AND RAIL SYSTEM PER THE ABOVEMIN. SPECIFICATIONS.2. WOOD SHALL BE WESTERN REDCEDAR OR EQUAL.NON‐BUFFERCRITICAL AREABUFFERCRITICAL AREA FENCECRITICAL AREA SIGNEVERY 100 FEET(DETAIL 3).PLANT QUANTITY CALCULATIONS: PLANTING PLANT TYPE REQUIRED PER PROPOSED BYTYPE AREA & SPACING DESIGN GUIDELINES* PLAN STREAM 11,500 SF TREES (9' OC) 138 TREES 138 TREES BUFFER SHRUBS (6' OC) 322 SHRUBS 322 SHRUBS TOTAL 460 TOTAL 460* LATEST EDITION OF KING COUNTY "CRITICAL AREA MITIGATION GUIDELINES".FOR PERMITTING PURPOSES ONLYPLANTING SCHEMATIC AND PLANT SCHEDULE12DRIERWETTERHIGHERLOWER50'50'LEGEND:DOUGLAS‐FIRWESTERN REDCEDAR VINE MAPLEINDIAN PLUMREDFLOWER CURRANTCLUSTER ROSESALMONBERRYCOMMON SNOWBERRY1050snvmvmvmvmvmvmvmvmvmrfsnipipipipipipipipipipipipipipipipipsbsbsbsbsbsbsbsbsbrororororororororororororfrfrfrfrfrfrfvmsnsnsnsnsnsnsnsnsnsnsnsnsnvmiprfrosbsnN