HomeMy WebLinkAboutFinal Avana Ridge Civil Plans for approval stampsGRAPHIC SCALE02040801 INCH = 40 FT.
GRAPHIC SCALE02040801 INCH = 40 FT.
GRAPHIC SCALE02040801 INCH = 40 FT.
GRAPHIC SCALE02040801 INCH = 40 FT.
SDSDGRAPHIC SCALE02040801 INCH = 40 FT.
GRAPHIC SCALE02040801 INCH = 40 FT.
GRAPHIC SCALE0510201 INCH = 10 FT.
GRAPHIC SCALE0510201 INCH = 10 FT.
GRAPHIC SCALE02040801 INCH = 40 FT.
MATCHLINE STA. 44+00
SEE SHEET C17
SEE SHEET C17
GRAPHIC SCALE00HORIZONTALVERTICAL1020401 INCH = 20 FT.2.55101 INCH = 5 FT.
MATCHLINE STA. 44+00SEE SHEET C16 SEE SHEET C16
GRAPHIC SCALE00HORIZONTALVERTICAL1020401 INCH = 20 FT.2.55101 INCH = 5 FT.
GRAPHIC SCALE00HORIZONTALVERTICAL1020401 INCH = 20 FT.2.55101 INCH = 5 FT.
MATCHLINE STA. 35+00
SEE SHEET C20
SEE SHEET C20
GRAPHIC SCALE00HORIZONTALVERTICAL1020401 INCH = 20 FT.2.55101 INCH = 5 FT.
MATCHLINE STA. 35+00SEE SHEET C19 SEE SHEET C19
00HORIZONTALVERTICAL1020401 INCH = 20 FT.2.55101 INCH = 5 FT.
GRAPHIC SCALE00HORIZONTALVERTICAL1020401 INCH = 20 FT.2.55101 INCH = 5 FT.
www.contechES.comSTORMFILTER DESIGN NOTESCARTRIDGE HEIGHTSPECIFIC FLOW RATE (gpm/sf)CARTRIDGE FLOW RATE (gpm)RECOMMENDED HYDRAULIC DROP (H)27"18"LOW DROP3.05'2.3'1.8'2 gpm/ft²22.51 gpm/ft²2 gpm/ft²1 gpm/ft²2 gpm/ft²1 gpm/ft²11.25157.5105STORMFILTER TREATMENTCAPACITY IS A FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OF CARTRIDGES. THE STANDARD MANHOLESTYLE IS SHOWN WITH THE MAXIMUM NUMBER OF CARTRIDGES (7). VOLUME SYSTEM IS ALSO AVAILABLE WITH MAXIMUM 7 CARTRIDGES.Ø72" MANHOLE STORMFILTER PEAK HYDRAULIC CAPACITY IS 1.5 CFS. IF THE SITE CONDITIONS EXCEED 1.5 CFS AN UPSTREAM BYPASS STRUCTURE ISREQUIRED.CARTRIDGE SELECTIONGENERAL NOTES1.CONTECH TO PROVIDE ALL MATERIALS UNLESS NOTED OTHERWISE.2.DIMENSIONS MARKED WITH ( ) ARE REFERENCE DIMENSIONS. ACTUAL DIMENSIONS MAY VARY.3.FOR SITE SPECIFIC DRAWINGS WITH DETAILED VAULT DIMENSIONS AND WEIGHTS, PLEASE CONTACT YOUR CONTECH ENGINEERED SOLUTIONSLLC REPRESENTATIVE. www.contechES.com4.STORMFILTER WATER QUALITY STRUCTURE SHALL BE IN ACCORDANCE WITH ALL DESIGN DATA AND INFORMATION CONTAINED IN THISDRAWING.5.STRUCTURE SHALL MEET AASHTO HS20 LOAD RATING, ASSUMING EARTH COVER OF 0' - 5' AND GROUNDWATER ELEVATION AT, OR BELOW, THEOUTLET PIPE INVERT ELEVATION. ENGINEER OF RECORD TO CONFIRM ACTUAL GROUNDWATER ELEVATION. CASTINGS SHALL MEET AASHTOM306 AND BE CAST WITH THE CONTECH LOGO.6.FILTER CARTRIDGES SHALL BE MEDIA-FILLED, PASSIVE, SIPHON ACTUATED, RADIAL FLOW, AND SELF CLEANING. RADIAL MEDIA DEPTH SHALLBE 7-INCHES. FILTER MEDIA CONTACT TIME SHALL BE AT LEAST 39 SECONDS.7.SPECIFIC FLOW RATE IS EQUAL TO THE FILTER TREATMENT CAPACITY (gpm) DIVIDED BY THE FILTER CONTACT SURFACE AREA (sq ft).INSTALLATION NOTES1.ANY SUB-BASE, BACKFILL DEPTH, AND/OR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DESIGN CONSIDERATIONS AND SHALL BESPECIFIED BY ENGINEER OF RECORD.2.CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE STORMFILTER STRUCTURE(LIFTING CLUTCHES PROVIDED).3.CONTRACTOR TO INSTALL JOINT SEALANT BETWEEN ALL STRUCTURE SECTIONS AND ASSEMBLE STRUCTURE.4.CONTRACTOR TO PROVIDE, INSTALL, AND GROUT INLET PIPE(S).5.CONTRACTOR TO PROVIDE AND INSTALL CONNECTOR TO THE OUTLET RISER STUB. STORMFILTER EQUIPPED WITH A DUAL DIAMETER HDPEOUTLET STUB AND SAND COLLAR. IF OUTLET PIPE IS LARGER THAN 8 INCHES, CONTRACTOR TO REMOVE THE 8 INCH OUTLET STUB AT MOLDEDIN CUT LINE. COUPLING BY FERNCO OR EQUAL AND PROVIDED BY CONTRACTOR.6.CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF.STRUCTURE IDWATER QUALITY FLOW RATE (cfs)PEAK FLOW RATE (cfs)RETURN PERIOD OF PEAK FLOW (yrs)# OF CARTRIDGES REQUIREDMEDIA TYPE (CSF, PERLITE, ZPG, GAC, PHS)PIPE DATA:I.E.MATERIALDIAMETERINLET PIPE #1INLET PIPE #2OUTLET PIPEWIDTHHEIGHTANTI-FLOTATION BALLASTNOTES/SPECIAL REQUIREMENTS:RIM ELEVATIONCARTRIDGE FLOW RATE* PER ENGINEER OF RECORDN/AN/A359.1418"LCPE347.64N/AN/AN/A18"LCPE349.44ZPG541000.6080.045CB 13
GRAPHIC SCALE02040801 INCH = 40 FT.
GRAPHIC SCALE02040801 INCH = 40 FT.
DATE:
JOB NUMBER:
DESIGN BY:
DRAWN BY:
CHECK BY:
Site Plan,
Noxious Weed
Control, Notes
SHEET:1 OF 2
12/28/2015
15‐159
ES
EARC
ESNO. DATE NOTESPROJECT: CRITICAL AREA MITIGATION PLANAvana Ridge PUDRenton, WashingtonSewall 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 INCLUDE
THE FOLLOWING: ALL CLASS "A", "B", AND "C" NOXIOUS WEEDS (INCLUDING NON‐REGULATED "B" AND "C" NOXIOUS WEEDS) IDENTIFIED ON THE LATEST KING
COUNTY NOXIOUS WEED LIST. DURING NOXIOUS WEED CONTROL WORK, EXISTING NATIVE VEGETATION SHALL BE PROTECTED FROM DAMAGE. ALL NOXIOUS
WEED 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 WITH
BUCKET 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 APPLICATOR
HAVING A CURRENT "AQUATIC" (Q) ENDORSEMENT.
NOXIOUS WEED CONTROL REQUIREMENTS:1
1
N
UNDERGROUND 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 OF
EXISTING STRUCTURES. THE UNDERGROUND ROUTING AND CONDITION OF
BURIED UTILITIES HAS NOT BEEN VERIFIED OR CONFIRMED. ADDITIONAL UTILITY
LOCATION 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 MUST
BE 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 IN
PROGRESS.
4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARDS,
SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED
ACTIONS TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO
PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF THE WORK
SHOWN ON THESE DRAWINGS. ANY WORK WITHIN THE TRAVELED RIGHT‐OF‐WAY
THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE TRAFFIC CONTROL IN
ACCORDANCE 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 CONDITIONS
WHEN COMPLETING THE WORK SHOWN ON THIS PLAN.
MITIGATION PLAN NOTES:
1. THE BOUNDARY/TOPOGRAPHIC MAP AND SITE PLAN USED TO GENERATE THIS PLAN
WAS PROVIDED BY DR STRONG CONSULTING ENGINEERS, INC. (620 7TH AVE ‐
KIRKLAND, WASHINGTON 98033. SOURCE DRAWINGS HAVE BEEN MODIFIED FOR
VISUAL ENHANCEMENT. MAP DATE REFERENCE: 12/21/2015.
MITIGATION PLAN SHEET INDEX:
SHEET NUMBER DESCRIPTION
1SITE PLAN, NOXIOUS WEED CONTROL, NOTES
2 PLANTING PLAN, MONITORING & MAINTENANCE
CONSTRUCTION SEQUENCE:
1. FLAG LIMITS OF PLANTING AREA.
2. REQUEST AND ATTEND PRE‐CONSTRUCTION MEETING WITH OWNER AND CITY OF
RENTON.
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 LEGEND
50' STANDARD STREAM BUFFER LIMITS
9,115 SF STREAM BUFFER REDUCTION
9,527 SF STREAM BUFFER EXPANSION
11,500 SF ENHANCEMENT PLANTINGS ‐ SEE DETAIL 2‐1
SPLIT RAIL FENCING AT BUFFER LIMITS (1,060 LF) ‐ SEE DETAIL 2‐3
CRITICAL AREA SIGNAGE AT BUFFER LIMITS (13 TOTAL) ‐ SEE DETAIL 2‐3
SCALE IN FEET
CONTOUR INTERVAL: 2 FOOT
40 4020020
SE 172ND STREET
SR 515 (BE
N
S
O
N D
RIVE
)BENSON ROADT Y P E N s S T R EA M
TYPE Ns STREAM
80400
N
Know what's
R
25'
25'50'CLIENT:Avana Ridge, LLC9675 SE 36th Street ‐ Mercer Island, WA 98040WEST BUILDING EAST BUILDING
1. 09/27/2016 ADDED NEW BASE6 FT X 20 FT
PED BRIDGE.
DESIGN BY
OTHERS 50'2. 01/09/2017 ADDED NEW BASE & STORM BASE3. 03/21/2017 ADDED PROJECT NUMBERSR‐399227TED‐40‐392227
DATE:
JOB NUMBER:
DESIGN BY:
DRAWN BY:
CHECK BY:
Planting Plan,
Monitoring &
Maintenance
SHEET:2 OF 2
12/28/2015
15‐159
ES
EARC
ESNO. DATE NOTESPROJECT: CRITICAL AREA MITIGATION PLANAvana Ridge PUDRenton, WashingtonSewall Wetland Consulting, Inc.PO Box 880 ‐ Fall City, Washington 98024 Phone: 253‐859‐0515SPLIT RAIL FENCE AND CRITICAL AREA SIGN INSTALLATION DETAIL
NO SCALE
3
2
PLAN GOALS, OBJECTIVES, & PERFORMANCE STANDARDS
GOAL:
TO SUCCESSFULLY ESTABLISH A
NATIVE PLANT COMMUNITY
WITHIN THE STREAM BUFFER
AREAS SHOWN ON THIS PLAN.
TO LIMIT NOXIOUS WEED SPECIES
WITHIN THE STREAM BUFFER
AREAS SHOWN ON THIS PLAN.
OBJECTIVE:
TO INSTALL AND SUCCESSFULLY
ESTABLISH DENSELY PLANTED NURSERY
GROWN TREES AND SHRUBS.
TO PROVIDE FULL INITIAL CONTROL OF
NOXIOUS WEED SPECIES AND THEN TO
MINIMIZE THE GENERAL PRESENCE OF
NOXIOUS WEED SPECIES .
PURPOSE OF AND NEED FOR PLAN:
THE PURPOSE OF THIS PLAN IS TO DESCRIBE THE STREAM BUFFER MODIFICATION
REQUIRED 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 THE
TABLE BELOW. THE GOALS AND OBJECTIVES OF THIS PLAN ARE CONSIDERED
ACHIEVED WHEN THE PERFORMANCE STANDARDS ARE SATISFIED.
MONITORING PLAN (DURATION = 5 YEARS):
AS‐BUILT
SCHEDULE: IMMEDIATELY FOLLOWING CONSTRUCTION
FOLLOWING COMPLETION OF THE WORK SHOWN ON THIS PLAN, A QUALIFIED
PROFESSIONAL SHALL PREPARE AN AS‐BUILT. THE AS‐BUILT SHALL SUMMARIZE THE
COMPLETED WORK AS WELL AS ANY DEVIATIONS FROM THE APPROVED VERSION OF
THIS PLAN.
IN ADDITION TO THE AS‐BUILT, BASELINE MONITORING DATA SHALL BE COLLECTED
AND PERMANENT PHOTO POINTS SHALL BE ESTABLISHED TO DOCUMENT
REPRESENTATIVE CONDITIONS WITHIN ENHANCED STREAM BUFFER AREAS.
BASELINE MONITORING DATA COLLECTED AND REPORTED WITH THE AS‐BUILT
SHALL BE CONSISTENT WITH THAT DESCRIBED FOR ANNUAL MONITORING.
THE AS‐BUILT AND BASELINE MONITORING DATA SHALL BE SUBMITTED TO THE CITY
OF RENTON NO LATER THAN 30 DAYS FROM THE DATE THAT THE WORK SHOWN ON
THIS PLAN HAS BEEN COMPLETED.
ANNUAL MONITORING
SCHEDULE: ANNUALLY FOR 5 YEARS FOLLOWING PLANT INSTALLATION
FOLLOWING ACCEPTANCE OF THE AS‐BUILT, ANNUAL MONITORING SHALL BE
COMPLETED FOR A PERIOD OF FIVE (5) YEARS. ANNUAL MONITORING SHALL BE
COMPLETED BY A QUALIFIED PROFESSIONAL AND SHALL COMPRISE A SITE
INVESTIGATION AND REPORTING PER THE FOLLOWING INTERVAL:
QUARTERLY DURING THE FIRST YEAR (YEAR 1) FOLLOWING PLANT
INSTALLATION; AND
IN AUGUST OR SEPTEMBER OF THE SECOND THROUGH FIFTH YEARS (YEAR 2
THROUGH YEAR 5) FOLLOWING INITIAL PLANT INSTALLATION.
THE PURPOSE OF THE DETAILED SITE ASSESSMENTS IS TO EVALUATE CONDITIONS
WITHIN ENHANCED STREAM BUFFER AREAS PER THE CURRENT YEAR'S
PERFORMANCE STANDARDS. THE FOLLOWING INFORMATION SHALL BE COLLECTED
AND ASSESSED RELATIVE TO THE PERFORMANCE STANDARDS ESTABLISHED FOR THE
PROJECT:
THE PERCENT SURVIVAL OF INSTALLED PLANT STOCK (YEAR 1 AND YEAR 2
ONLY). A DIRECT COUNT INVENTORY AND ASSESSMENT OF ALL INSTALLED
PLANTS SHALL BE USED TO EVALUATE PERCENT SURVIVAL. THE RATIONALE
FOR POOR CONDITIONS, IF PRESENT, WILL BE DETERMINED TO THE EXTENT
FEASIBLE.
THE PERCENT COVERAGE PROVIDED BY INSTALLED PLANT SPECIES (ALL
YEARS). INSTALLED PLANT STOCK PERCENT COVERAGE SHALL BE ASSESSED
USING APPROPRIATELY SIZED SAMPLE PLOTS OR LINE INTERCEPT TRANSECTS.
THE SPECIES COMPOSITION OF AND PERCENT COVERAGE PROVIDED BY
NOXIOUS WEED SPECIES (ALL YEARS). SPECIES COMPOSITION AND PERCENT
COVERAGE BY NOXIOUS WEEDS SHALL BE ASSESSED USING SAMPLE PLOTS OR
LINE INTERCEPT TRANSECTS .
IN ADDITION TO THE DATA COLLECTION AND ANALYSIS REGARDING PLANT
COMMUNITY CONDITIONS, PHOTOGRAPHS OF ENHANCED STREAM BUFFER AREAS
SHALL BE TAKEN FROM THE PERMANENT PHOTO POINTS ESTABLISHED DURING THE
AS‐BUILT.
THE RESULTS OF EACH ANNUAL MONITORING SHALL BE SUMMARIZED IN A
WRITTEN REPORT AND SUBMITTED TO THE CITY OF RENTON NO LATER THAN
OCTOBER 31 OF THE RESPECTIVE MONITORING YEAR.
CONTINGENCY PLAN
SHOULD ANY MONITORING ASSESSMENT REVEAL THAT THE PERFORMANCE
STANDARDS FOR THE RESPECTIVE YEAR ARE NOT SATISFIED, THE PERMITTEE SHALL
WORK WITH THE CITY OF RENTON TO DEVELOP A CONTINGENCY PLAN TO ADDRESS
THE 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/OR
5. PLANT SUBSTITUTIONS OF TYPE, SIZE, QUANTITY, AND LOCATION.
SUCH CONTINGENCY PLAN SHALL BE SUBMITTED TO THE CITY OF RENTON NO LATER
THAN JANUARY 31 OF ANY YEAR WHEN DEFICIENCIES ARE DISCOVERED. UNLESS
OTHERWISE APPROVED BY THE CITY OF RENTON, ACTIONS SPECIFIED ON AN
APPROVED CONTINGENCY PLAN MUST BE COMPLETED WITHIN 60 DAYS. IF THE
FAILURE IS SUBSTANTIAL, THE CITY OF RENTON MAY EXTEND THE COMPLIANCE
MONITORING PERIOD FOR THE STREAM BUFFER ENHANCEMENT WORK.
MAINTENANCE PLAN
THIS SECTION PROVIDES A GENERAL OVERVIEW OF THE MAINTENANCE PROGRAM
NECESSARY TO ENSURE THE PERFORMANCE STANDARDS ESTABLISHED FOR THIS PLAN
ARE SATISFIED.
NOXIOUS WEED CONTROL
FOLLOWING PLANT INSTALLATION AND AT REGULAR INTERVALS DURING THE
MONITORING PERIOD, NOXIOUS WEED CONTROL SHALL OCCUR ON A SPOT
TREATMENT BASIS WITHIN THE AREAS SHOWN IN DETAIL 1‐1 AND PER THE
SPECIFICATIONS DESCRIBED IN DETAIL 1‐1.
GENERAL MAINTENANCE
INSTALLED PLANTS SHALL BE MAINTAINED AT REGULAR INTERVALS DURING THE
MONITORING PERIOD TO PROMOTE THE SUCCESSFUL ESTABLISHMENT AND VIGOROUS
GROWTH 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 PROMOTE
VIGOROUS 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 IRRIGATION
TEMPORARY IRRIGATION SHALL BE PROVIDED FOR TWO (2) GROWING SEASONS
FOLLOWING PLANT INSTALLATION PER THE SPECIFICATIONS SHOWN ON THIS PLAN.
PERFORMANCE STANDARDS:
100% SURVIVAL BY INSTALLED PLANT STOCK AFTER THE FIRST GROWING SEASON. THIS
STANDARD CAN BE ACHIEVED STRICTLY THROUGH SURVIVAL OR THROUGH A
COMBINATION 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 GROWING
SEASON. UP TO 20% OF THE NATIVE WOODY PLANT SPECIES COVERAGE MAY BE
COMPRISED OF DESIRABLE NATIVE COLONIZING SPECIES.
LESS THAN 10% COVERAGE BY ALL CLASS "A", "B", AND "C" NOXIOUS WEEDS (INCLUDING
NON‐REGULATED "B" AND "C" NOXIOUS WEEDS) IDENTIFIED ON THE LATEST KING COUNTY
NOXIOUS WEED LIST.
MONITORING PLAN & MAINTENANCE PLAN
NATIVE SOIL
CUT CIRCLING ROOTS
AND SPREAD OR
"BUTTERFLY" ROOTBALL.
MIN. 1.5 TIMES THE
WIDTH OF THE ROOTBALL
BACKFILL WITH NATIVE
SOIL. COMPACT BY HAND.
PLACE TOP OF ROOTBALL
1 INCH ABOVE THE LEVEL
OF NATIVE SOIL. BEFORE
MULCH, POTTING SOIL
SHOULD BE VISIBLE.
MULCH AT BASE OF PLANT
(6" MINIMUM THICKNESS)
PLACE TOP OF ROOTBALL
1 INCH ABOVE THE LEVEL
OF NATIVE SOIL. BEFORE
MULCH, POTTING SOIL
SHOULD BE VISIBLE.
CUT CIRCLING ROOTS
AND SPREAD OR
"BUTTERFLY" ROOTBALL.
MULCH AT BASE OF PLANT
(6" MINIMUM THICKNESS)
NATIVE SOIL
BACKFILL WITH NATIVE
SOIL. COMPACT BY HAND.
MIN. 1.5 TIMES THE
WIDTH OF THE ROOTBALL
PLANT INSTALLATION DETAILS2
2 NO SCALE
MULCH 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 QUANTITIES
THAT WOULD BE DETRIMENTAL TO PLANT LIFE. MULCH SHALL NOT BE DERIVED FROM
STUMP GRINDINGS AND SHALL NOT CONTAIN SOIL. HOG FUEL OR EQUAL IS NOT
ACCEPTABLE. SUBJECT TO REVIEW BY THE PLAN DESIGNER, LOCAL ARBORIST AND/OR
COMMERCIAL TREE TRIMMING COMPANIES MAY BE ALTERNATIVE ACCEPTABLE MATERIAL
SOURCES (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 PRESERVE
AND 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 TO
THE CITY OF RENTON.
3. SIGN CONTENT SHOWN IS FOR ILLUSTRATIVE PURPOSES.
SIGN CONTENT SHALL BE ACCEPTABLE TO THE CITY OF
RENTON.
4. SIGN PLATE SHALL BE GREEN IN A COLOR ACCEPTABLE TO
THE 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 AUTOMATIC
DRIP SYSTEM THAT PROVIDES A MINIMUM RAINFALL EQUIVALENT OF 1 INCH PER WEEK FROM
JUNE 15 THROUGH SEPTEMBER 15. IRRIGATION SHALL BE APPLIED IN A MANNER THAT
MAINTAINS PLANT HEALTH, PREVENTS WILTING, AND PROMOTES DEEP PLANT ROOT SYSTEMS.
TEMPORARY IRRIGATION REQUIREMENTS:
SYMBOL COMMON NAME SCIENTIFIC NAME SIZE/FORM QUANTITY SPACING
DOUGLAS‐FIR PSEUDOTSUGA MENZIESII 1" MIN CAL., CONTAINERIZED 58 AS‐SHOWN
WESTERN REDCEDAR THUJA PLICATA 1" MIN CAL., CONTAINERIZED 80 AS‐SHOWN
VINE MAPLE ACER CIRCINATUM 2 GALLON CONTAINERIZED 47 AS‐SHOWN
INDIAN PLUM OEMLERIA CERASIFORMIS 2 GALLON CONTAINERIZED 80 AS‐SHOWN
REDLFOWER CURRANT RIBES SANGUINEUM 2 GALLON CONTAINERIZED 33 AS‐SHOWN
CLUSTER ROSE ROSA PISCOCARPA 2 GALLON CONTAINERIZED 51 AS‐SHOWN
SALMONBERRY RUBUS SPECTABILIS 2 GALLON CONTAINERIZED 43 AS‐SHOWN
COMMON SNOWBERRY SYMPHORICARPOS ALBUS 2 GALLON CONTAINERIZED 68 AS‐SHOWN
TOTAL 460
PLANT SCHEDULE:
PLANTS SHALL BE NATIVE TO THE PACIFIC NORTHWEST, PREFERABLY THE PUGET SOUND REGION OF WASHINGTON STATE. PLANTS
SHALL 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. TREES
SHALL 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 THE
EDGES OF THE CONTAINER IN WHICH IT HAS GROWN. TREES AND SHRUBS SHALL BE WELL ROOTED AND SHALL HAVE SUFFICIENT
ROOT MASS TO HOLD TOGETHER THE SOIL, IN WHICH PLANT IS GROWING, WHEN REMOVED FROM THE POT.
NATIVE SOIL
58" MINUS CRUSHED ROCK
BACKFILL. COMPACT TO 95%
MIN. DENSITY
MOUND TO
DRAIN AWAY
FROM POST 6" MIN. DIA. SQUARE OR
ROUND ROUGH CUT WOOD
POST ‐ UNTREATED (TYP)
5" MIN. DIA. ROUGH
CUT WOOD RAIL ‐
UNTREATED (TYP)
10' MAX
3' MIN.
12" ‐ 18"
2' MIN.
SPLIT RAIL FENCE NOTES:
1. FENCE SHALL BE COMMERCIALLY AVAILABLE POST AND RAIL SYSTEM PER THE ABOVE
MIN. SPECIFICATIONS.
2. WOOD SHALL BE WESTERN REDCEDAR OR EQUAL.
NON‐BUFFERCRITICAL AREA
BUFFER
CRITICAL AREA FENCE
CRITICAL AREA SIGN
EVERY 100 FEET
(DETAIL 3).
PLANT QUANTITY CALCULATIONS:
PLANTING PLANT TYPE REQUIRED PER PROPOSED BY
TYPE 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 ONLY
PLANTING SCHEMATIC AND PLANT SCHEDULE1
2
DRIERWETTER
HIGHER
LOWER
50'
50'
LEGEND:
DOUGLAS‐FIR
WESTERN REDCEDAR
VINE MAPLE
INDIAN PLUM
REDFLOWER CURRANT
CLUSTER ROSE
SALMONBERRY
COMMON SNOWBERRY
1050
sn
vm
vm vm
vm
vm
vm
vm
vm
vm
rf
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2. 01/09/2017 ADDED NEW BASE & STORM BASE1. 09/27/2016 ADDED NEW BASECLIENT:Avana Ridge, LLC9675 SE 36th Street ‐ Mercer Island, WA 980403. 03/21/2017 ADDED PROJECT NUMBERSR‐399228TED‐40‐392228