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BETHANY CORNER 9-LOT SHORT PLAT STREAM BUFFER MITIGATION PLAN
FOUND 1 /2" REBAR WITH
YELLOW PLASTIC CAP STAMPED
11WR BISHOP 24214" 0.1'N. X
0,3'W, OF PROP CORNER
5TO GRADE
PRE-PRINTED
E N C E CORNER S POST WITH TWO ® PLASTIC SIGN y -
5/ 1 G GALVANIZED q q q
0. 2 N, X 0. 2 E. O F LAG BOLTS WITH q q q q q o
PROP CORNER FENCE CORNER IS FENCE COP WASHERS WETLAND q q q DO NOT ALLOW COMPOST TO
s SEN5ITIVE AREA BOUNDARY q 1 q q TOUCH STEM (MIN. 2"
0.2'N. OF 0 2 ELPPROTECANDCAREFORTISAREA. q AWAY). COMPOST ON THE
- X "G�Pi2965660 1uf���OS�", CONSTRUCT A SMALL EARTHEN q q q q STEM CAN PROMOTE FUNGUS
RIM (DAM) TO BE MOUNDED q AND PLANT PATHOGENS.
__ PLACE NATIVE SOIL
� � 8' 4X4 CEDAR OR AROUND THE STEM NO CLOSER q
_ PREA5URE-TREATED THAN THE DRIP LINE (TO HELP
x °x - _ _ _ o q DIRECTLY ADJACENT TO
FENCE S \ �4' H WF , , - POST SET 3' INTO CONTAIN WATER.) 0 0 SUM'
0. rJ W OF v D 50 „ HOLE FOLD BACK OR REMOVE BURLAP
In\�------------ -SPEE- TO-B_E_ 1 D -" 1 D 4' VEGETATIVE COMPOST
L.L KING COUNTY _--�
REMOVED --------
3" TYP- ....�_... r ......._.. B do B OR CONTAINER
TRACTC
WETLAND/STREAM SIGN INSTALLATION DETAIL 4- MIN` AS SPECIFIED
__
NTS
APPROXIMATE END SENSI Tl VE AREA E \1 C D r --- I . WETLAND/STREAM SIGN SHALL BE POSTED AT THE BOUNDARY BETWEEN THE FERTILIZER TABLETUj
OF DRAINAGE CHANNEL O SENSITIVE AREA BUFFER, SETBACK AREA OR TRACT AND THE BUILDING COMPOST, FERTILIZER, SOIL
75 409 S. E. I O SETBACK AREA. 6" MIN. MIXTURE RETENTION
O S 15 BUFFER 2. ONE SIGN SHALL BE POSTED WHERE SHOWN ON THE PLAN. SIGNS MAY AL50 BE ATTACHED At�Ts
w
TO FENCES.
+40' FROM S SCTB�1 CK (TYP.�I i ROOT BALL WIDTH
3. SIGNS ARE AVAILABLE FOR $2.50 FROM:
z APPROXIMA TE 8 PROPERTY KING COUNTY BUILDING AND LAND DEVELOPMENT DIVISION (TNACE THE SIZE OF THE COFITAINER)
� - -�- I � I
WIDE TYPE NS // / 0 16 E / 9000AK5DALEAVENUE 5W
LINE
STREAM / \ S PENTON, WA.98055-1219 SHRUB PLANTING DETAIL
NTS
zz , ' �' I I GENERAL NOES:
50STREAM r 1. THE GOAL OF THIS MITIGATION PLAN IS TO PROVIDE EQUIVALENT OR GREATER HABITAT ASSOCIATED WITH STREAM BUFFER RESTORATION. IT IS A 3-YEAR Q. WATER: PLANTS SHALL BE WATERED MIDWAY THROUGH BACKFILLING, AND AGAIN UPON COMPLETION OF BACKFILLING. A RIM OF EARTH
LLI STREAM / / 61 SHALL BE MOUNDED AROUND THE BASE OF THE TREE OR SHRUB NO CLOSER THAN THE DRIP LINE, EXCEPT ON SEEP SLOPES OR IN
/ / BUFFER S i c) LAB MONITORING PERIOD. HOLLOWS. PLANTS SHALL BE WATERED A SECOND TIME WITHIN 24-48 HOURS AFTER INSTALLATION.
CHANNEL / / c j Q• 2. VEGETATION WILL HAVE 100% SURVIVAL RATE AFTER YEAR 1 AND 85% AFTER YEAR 2. VEGETATION WILL HAVE AN 80% SURVIVAL RATE THROUGH THE R. INTERMEDIATE INSPECTIONS: ALL PLANTS SHALL BE INSPECTED AND APPROVED BY THE LANDSCAPE DESIGNER AND /OR WETLAND
6, 734 S. l . j Od j 5 94U S. F. MONITORING PERIOD. THERE WILL BE LESS THAN 10% AERIAL COVER BY NON-NATIVE INVASIVE SPECIES IN THE MITIGATION AREA DURING THE ENTIRE BIOLOGIST PRIOR TO INSTALLATION. CONDITION OF ROOTS OF A RANDOM SAMPLE OF PLANTS WILL BE INSPECED, AS WELL AS ALL
W WAS NOT / / INSTALL SPLIT- ABOVEGROUND GROWTH ON ALL PLANTS. ROOTS OF ANY BARE ROOT PLANTS, IF PERMITTED FOR USE, WILL BE INSPECTED. PLANT
S MATERS 1 > D PROTECT 3 j 3. SHRUB COVER WILL BE GREATER THAN 60% AFTER YEAR 1, AND GREATER THAN 60% AFTER YEAR 2, AND GREATER THAN 85% AFTER YEAR 3. MATERIAL MUSTAL MAY BBEARER RE -INSPECTED AND OVED AT THE SOURCE,
APPROVED ONAT E THE CS TEOPR OR TON OF INSTALLATIONLANDSCAPE . PLANT RLOCATIONS SHALL AND THE NBEBINSPEC INSPECTED AND IOLOGIST, BUT ALL
LL FLAGGED OR // // RAIL FENCE PER APPROVED PRIOR TO PLANTING.
LL `, EXISTING 4. NON-NATIVE INVASIVE PLANTS WILL NOT MAKE UP MORE THAN 10% OF COVER IN ANY GROWING SEASON.
SURVEYED / / DETAIL 0 N BUFFER I 18. HAND SEEDING: SEEDING IS REQUIRED AS DESCRIBED IN APPROVED PLANS,
EDGE, INCLUDE / i / TREES' WITH CI
ITY MONPERFORMITORING RCORRECTIVEEPORT OR CACTIONSEAP ROPRIACTION T/E TOATHEIMTIIGATION IS NOE.G., FAI IING PLANTSNG THESE PWILLOBEAREPLACED,NCE DOTHER POLANT SPECIES WILLND HOLDER WILL WBEK A. TIMING: SEEDING SHALL NOT TAKE PLACE UNTIL MULCHING IS COMPLETE. CONTRACTOR SHALL INSURE THAT AREAS TO RECEIVE SEED
SENSITIVE AREA / SUBSTITUTED, NON-NATIVE INVASIVE WILL BE REMOVED BY HAND WITHOUT PESTICIDES, ETC. ARE CLEAN OF DEBRIS AND THAT FINAL GRADES ARE CORRECT. SEEDING SHALL BE PERFORMED AFTER OTHER PLANT INSTALLATION IS VEHICLESTRAFFICCOMPLETE. SEEDING IS THE FINAL STEP OF THE INITIAL INSTALLATION; SITE SHALL BE CLOSED TO ALL VEHICLES AND FOOT TRAFFIC SHALL
7_5/ / / 6. WHEN IT IS AVAILABLE, CONTACT INFORMATION MUST BE PROVIDED TO CITY FROM THE APPLICANT THAT INCLUDES NAMES, ADDRESSES, AND PHONE BE MINIMIZED AFTER SEEDING IS COMPLETE. SEEDING SHALL NOT TAKE PLACE WHEN THE GROUND IS FROZEN OR IN WINDY WEATHER. SEEDS
/ SIGNS PER DETAIL NUMBERS OF PERSONS/FIRMS THAT WILL BE RESPONSIBLE FOR INSTALLING REQUIRED PLANTING, AND PERFORMING REQUIRED MAINTENANCE AND MONITORING. SHALL BE HAND BROADCAST OR BY MECHANICAL HAND POWERED SPREADER, WITH AS TEEN DISTRIBUTION AS FEASIBLE. AREAS WITHIN
/ 6"-12" OF STEMS OF INSTALLED PLANTS SHALL NOT BE SEEDED.
j 7. FOR THE FIRST YEAR FOLLOWING INSTALLATION, WATER THE MITIGATION AREA AT A RATE OF ONE INCH PER WEEK FROM JUNE THROUGH OCTOBER, IN B. SEED MIX: USE WETLAND SEED MIX IN WETLAND AREA AND BUFFER SEED MIX FOR WETLAND BUFFER AREAS. THE MIX SHOULD BE
Uj / / / TOEENSURE AKS WHEN T HIGH SHRUB SURVIVAL RATEHERE IS LESS THAN ONE .H OF RAINFALL. ALSO, THE MITIGATION AREA SHALL BE WATERED AS APPROPRIATE DURING THE VARIOUS SEASONS COMPOSED OF MATTER DE RIMENITAL TO PLANT GROWTH GHT PERCENTAGES CINOE:FIED INSEED MXTHE BSHOULD BE ORDERED EDALL SEED AAS EARLY AS POSSIBLELS SHALL BE FREE OF WTODINSURE AN ADEQUATE SUPPLY
SEEDS OR OTHER FOREIGN
EEL)
OFFS)TE �I i OF SPECIFIED NATIE SEED. SEED MIX SHALL NOT INCLUDE CLOVER, PERENNIAL GRASS OR TURF GRASS.
� // // SEASONAL / J 8. IMPLEMENTATION OF THE MITIGATION PLAN MUST OCCUR DURING THE FIRST DORMANT SEASON FOLLOWING INSTALLATION. INSTALLATION MUST BE INSPECTED
C1NG 8 - j---------� - _ ___ C. POST SEEDING EROSION CONTROL: SCATTER 2" OF CERTIFIED WEED -FREE STRAW ON ALL BARE GROUND AFTER SEEDING IS COMPLETE AND
`//�V IL I ------ AND APPROVED BY CITY. THE INSTALLATION INSPECTION WILL VERIFY THAT SOILS HAVE BEEN DECONSOLIDATED AND AMENDED, PLANTS ARE INSTALLED
-- INSPECTED, FOR EROSION CONTROL (SEE EROSION CONTROL NOTES).
STREAM I ACCORDING TO DESIGN AND IN GOOD HEALTH, AREA HAS BEEN SEEDED, AND OTHER CONDITIONS HAVE BEEN MET. NURSERY INVOICES MUST BE PROVIDED TO
V i INSPECTOR. ONCE APPROVED, MONITORING PERIOD BEGINS. 19. MAINTENANCE: MAINTENANCE SHALL BE REQUIRED IN ACCORDANCE WITH CITY SENSITIVE AREAS MITIGATION GUIDELINES (2000) AND
FLOWS TO �8-E_ - -I- - _ _ _ _ _ 9. MONITORING PERIOD WILL BE FOR THREE YEARS, WITH RESULTS OF ANNUAL MONITORING EVENTS REPORTED TO THE CITY. MONITORING MAY BE EXTENDED IF APPROVED PLANS.
SOUTHWEST./ LL - - - - - - - FINAL INSPECTION SHOWS RESTORATION HAS NOT ACHIEVED PERFORMANCE STANDARDS, UNTIL SUCH TIME AS PERFORMANCE STANDARDS HAVE BEEN MET. A. SURVIVAL: THE APPLICANT SHALL BE RESPONSIBLE FOR THE HEALTH OF 100% OF ALL NEWLY INSTALLED PLANTS FOR ONE GROWING
SEASON ER INSTALLATION HAS BEEN �� , 10. MONITORING MUST INCLUDE DESCRIPTION/DATA FOR: OCCURRINGTFROM SPRING (MARCH iACCEPTED BY CITY ECOLOGIST
5 - MARCHWIN 15, FOLLOGYEOE AR). FORA FALL INSTALLATION, PERFORMANCE RGROWING ON IS ED AS
AL TION, THEWIN GROGSEASON WILL BEGIN THE
^ / / J SURVIVAL, ESTIMATED
E, RIAL COVERAGE
VGFOLLOWING
PRING. THE APPLICANT REPLACE
ANY PLANTS
TTILFAILING,AT ARE WEAK, DEFECTIVE
MANNER
N GROWTH, DEAD
S0, DO -OBSERVED WILDLIFE, INCLUDING AMPHIBIANS, AVIANS,ADOTHERS DURINGTHIS GROWING SEASON, AS DIRECTED BYTHE APPLCAN'SANSCAPE DESIGNER, WETLAND BIOLOGIST, AND/OR CITY ECOLOGIST.
-RECEIPTS FOR OFFSITE DISPOSAL OF ANY DUMPING, WEEDS, OR INVASIVE PLANTS
-4"x6" COLOR PHOTOGRAPHS FROM PERMANENT PHOTO -POINTS AS SHOWN ON REVISED MITIGATION PLANS B. INSTALLATION TIMING FOR REPLACEMENT PLANTS: THE APPLICANTS LANDSCAPE DESIGNER, WETLAND BIOLOGIST, AND/OR CITY ECOLOGIST
FENCE CORNR /S 0, 9 N SHALL DETERMINE TIMING OF THE INSTALLATION FOR REPLACEMENT PLANTS.
i 11. THE MITIGATION AREA/BUFFER MUST BE IDENTIFIED USING PERMANENT SENSITIVE AREA BOUNDARY SIGNS INSTALLED IN TWO LOCATIONS. SIGNS ARE TY CORNER / AVAILABLE FOR SALE AT THE CITY DPER CASHIER.
OF PROPERTY C. DURATION AND EXTENT: IN ORDER TO ACHIEVE PERFORMANCE STANDARDS, THE APPLICANT SHALL HAVE THE MITIGATION AREA MAINTAINED
/ W � FOR THE DURATION OF THE MONITORING PERIOD, 3 YEARS. MAINTENANCE WILL INCLUDE WATERING, WEEDING AROUND BASE OF INSTALLED
O 12. ANY DEFICIENCY DISCOVERED DURING ANY MONITORING OR INSPECTION VISIT MUST BE CORRECTED WITHIN 60 DAYS. PLANTS, PRUNING, FERTILIZING, REPLACEMENT, REMOVAL OF DEAD MATERIAL (OTHER THAN FALLEN LOGS, LARGE WOODY DEBRIS, ETC),
RESTAKING, AND ANY OTHER MEASURES NEEDED TO INSURE PLANT SURVIVAL. ALL MAINTENANCE SHALL BE DIRECTED BY THE LANDSCAPE
/ - 13. PRIOR TO BEGINNING ANY WORK, THE APPLICANT MUST PROVIDE A RESTORATION BOND OR ASSIGNMENT OF FUNDS PER CITY PROCEDURES. A BOND DESIGNER AND / OR WETLAND BIOLOGIST.
> � / QUANTITY WORKSHEET WILL NEED TO BE COMPLETED BASED ON ALL ELEMENTS OF THE MITIGATION PLAN. THE TOTAL COST, PLUS CONTINGENCY FEES, WILL BE D. STANDARDS FOR REPLACEMENT PLANTS: REPLACEMENT PLANTS SHALL MEET THE SAME STANDARDS FOR SIZE AND TYPE AS THOSE
U 6 VB E THE AMOUNT OF THE RESTORATION BOND THE APPLICANT IS REQUIRED TO PROVIDE. NOTE THAT THE APPROVED BOND WILL INCLUDE REQUIRED START DATE SPECIFIED FOR ORIGINAL INSTALLATION UNLESS OTHERWISE DIRECTED BY THE LANDSCAPE DESIGNER, WETLAND BIOLOGIST, AND/OR CITY
/ x_x x-x- 2. FOR MITIGATION CONSTRUCTION. BONDS ARE ELIGIBLE FOR REDUCTION TO MAINTENANCE STATUS AFTER SUCCESSFUL INSTALLATION INSPECTION, PROVIDING ECOLOGIST. REPLACEMENT PLANTS SHALL BE INSPECTED AS DESCRIBED ABOVE FOR THE ORIGINAL INSTALLATION.
x THAT IT ALSO MEETS PERFORMANCE STANDARDS ESTABLISHED IN THE MITIGATION PLAN AND CITY SENSITIVE AREA MITIGATION GUIDELINES (OCTOBER 2000).
E. REPLANTING: PLANTS THAT HAVE SETTLED IN THEIR PLANTING PITS TOO DEEP, TOO SHALLOW, LOOSE, OR CROOKED SHALL BE REPLANTED
O \\ 14. STANDARDS: ALL WORK AND MATERIALS SHALL CONFORM TO CITY STANDARDS AND SPECIFICATIONS, AND TO THE SPECIFICATIONS AND DETAILS SHOWN ON AS DIRECTED BY THE LANDSCAPE DESIGNER, WETLAND BIOLOGIST, AND/OR CITY ECOLOGIST.
m THESE PLANS.
J / ; 20. MONITORING: MONITORING SHALL BE CONDUCTED IN ACCORDANCE WITH THE APPROVED MITIGATION / RESTORATION MONITORING PLAN.
15. CONTRACTOR'S QUALIFICATIONS: ALL WORK SHALL BE PERFORMED BY A LICENSED LANDSCAPE CONTRACTOR REGISTERED IN THE STATE OF WASHINGTON.
1 CONTRACTOR MUST BE EXPERIENCED IN MITIGATION AND RESTORATION WORK. THE CONTRACTOR SHALL PROVIDE THAT THERE IS ONE PERSON ON THE SITE A. VEGETATION MONITORING: SAMPLING POINTS OR TRANSECTS WILL BE ESTABLISHED FOR VEGETATION MONITORING, AND PHOTO -POINTS
/ FENCE CORNER IS AT ALL TIMES DURING WORK AND INSTALLATION WHO IS THOROUGHLY FAMILIAR WITH THE TYPE OF MATERIALS BEING INSTALLED AND THE BEST METHODS FOR ESTABLISHED FROM WHICH PHOTOS WILL BE TAKEN THROUGHOUT THE MONITORING PERIOD. LINEAR TRANSECTS ARE THE PREFERRED METHOD
' o o " THEIR INSTALLATION, AND WHO SHALL DIRECT ALL WORK BEING PERFORMED UNDER THESE SPECIFICATIONS. THIS PERSON SHALL HAVE A MINIMUM OF FIVE FOR VEGETATION MONITORING FOR THIS SITE. NO LESS THAN ONE (1) - 25 METER TRANSECTS WILL BE ESTABLISHED IN THE RESTORATION
0. 8 N , X 0, 4 E , 0 F 8 „ D (5) YEARS EXPERIENCE INSTALLING NATIVE PLANT MATERIALS FOR WETLAND MITIGATION OR RESTORATION PROJECTS, UNLESS OTHERWISE ALLOWED BY THE AREA. PERMANENT RANSECT LOCATION(S) MUST BE IDENTIFIED ON RESTORATION SITE PLANS IN THE FIRST MONITORING REPORT (THEY MAY
PROP CORNER L C R 0Q0O0 R= Fv LANDSCAPE DESIGNER, WETLAND BIOLOGIST AND/OR CITY ECOLOGIST. BE DRAWN ON APPROVED RESTORATION PLANS BY HAND). EACH RANSECT SHALL DETAIL HERB, SHRUB, AND TREE AERIAL COVER AT RADII
w l V L J OF 1M, 5M, AND 10M RESPECTIVELY, USING THE BRAUN-BLANQUET RELIEVE METHOD OR OTHER ACCEPTABLE FIELD METHOD.
16. SITE CONDITIONS: THE APPLICANT SHALL IMMEDIATELY NOTIFY CITY OF ANY DISCREPANCIES BETWEEN THESE PLANS AND THE SITE CONDITIONS. THE B. PHOTOPOINTS: NO LESS THAN THREE (3) PHOTOPOINTS WILL BE ESTABLISHED - PHOTOGRAPHS WILL BE TAKEN FROM AT LEAST THREE
z I LOCATIONS OF PLANTS AND THE QUANTITIES OF PLANTS SHOWN MAY BE MODIFIED IN THE FIELD BY THE LANDSCAPE DESIGNER AND / OR THE WETLAND (3) POINTS WITHIN THE RESTORATION AREA TO VISUALLY DEPICT THE CONDITION OF THE RESTORATION AREA.
r 140. 87 L - 7 99 07' BIOLOGIST BASED ON FIELD CONDITIONS AT THE TIME OF PLANTING.
I C. REPORTS: MONITORING REPORTS SHALL BE SUBMITTED AFTER THE END OF EACH GROWING SEASON (BY NOEMBER 15) FOR THREE (3)
17. PLANTS: PLANTS IN NUMBER AND SIZE ARE REQUIRED IN ACCORDANCE WITH APPROVED PLANS.
O _ - - R= 2 �l , 00 36' CONSECUTIVE YEARS FOLLOWING SUCCESSFUL INSTALLATION INSPECTION. MONITORING REPORTS MUST INCLUDE DESCRIPTION /DATA FOR:
U I. I I _ A. ORIGIN: PLANT MATERIALS SHALL BE NATIVE PLANTS, NURSERY GROWN IN THE PUGET SOUND AREA OF WASHINGTON. DUG PLANTS MAY ONLY BE USED PLANT SURVIVAL, VIGOR, AND AERIAL COVERAGE FROM EVERY PLANT COMMUNITY (TRANSECT DATA)
20 - - - UPON APPROVAL OF THE CITY. II. SITE HYDROLOGY, INCLUDING EXTENT OF INUNDATION, SATURATION, DEPTH TO GROUNDWATER, FUNCTION OF
L = 199 ANY HYDROLOGIC STRUCTURES, INPUTS, OUTLETS, ETC.
m ASPHALT B. HANDLING: PLANTS SHALL BE HANDLED SO AS TO AVOID ALL DAMAGE, INCLUDING BREAKING, BRUISING, ROOT DAMAGE, SUNBURN, DRYING, FREEZING OR III. SLOPE CONDITION, SITE STABILITY, ANY STRUCTURES OR SPECIAL FEATURES
) OTHER MUST BESHALLROPE IN AIV. BUFFER CONDITIONS E.G. SURROUNDING LAND USE USE BY HUMANS WILD AND DOMESTIC CREATURES
GRAPHIC SCALE > I - I I R= 24. DO ,' BRANCHES. PROTECTNPLANT ROOTSCWITH SDHADE )AND WETNSOIILLR INTHENTIME PERIODOBETWEENNUDELIVI DELIVERY AND 0 INSTALLATION. DON NOT LI TTCOONTAINEERMSTOCK V. OBSERVED WILDLIFE,' INCLUDING AMPHIBIANS, AMANS, AND OTHERS
z ��fit/t/D� I BY TRUNKS, STEMS, OR TOPS. DO NOT REMOVE FROM CONTAINERS UNTIL READY TO PLANT. WATER ALL PLANTS AS NECESSARY TO KEEP MOISTURE LEVELS
I r ---- ---- _ VI. SOILS, INCLUDING TEXTURE,
I
APPROPRIATE TO THE SPECIES HORTICULTURAL REQUIREMENTS. PLANTS SHALL NOT BE ALLOWED TO DRY OUT. ALL PLANTS SHALL BE WATERED THOROUGHLY
MUNSELL COLOR ROOTING AND OXIDIZED RHIZOSPHERES
l 2O O 1 O 2O l �` OD VIL RECEIPTS FOR OFF -SITE DISPOSAL OF ANY
a I 16.001 1. 00' IMMEDIATELY UPON INSTALLATION. SOAK ALL CONTAINERIZED PLANTS THOROUGHLY PRIOR TO INSTALLATION. BARE ROOT PLANTS ARE SUBJECT TO THE DUMPING, WEEDS, OR INVASIVE PLANTS
7 nn FOLLOWING SPECIAL REQUIREMENTS, AND SHALL NOT BE USED UNLESS PLANTED BETWEEN NOVEMBER 1 AND MARCH 1, AND ONLY WITH THE PERMISSION OF VIII. RECEIPTS FOR ANY STRUCTURAL REPAIR OR REPLACEMENT
THE LANDSCAPE DESIGNER AND CITY ECOLOGIST. BARE ROOT PLANTS MUST HAVE ENOUGH FIBROUS ROOT TO INSURE PLANT SURVIVAL. ROOTS MUST BE IX. 4" X 6" COLOR PHOTOGRAPHS TAKEN FROM PERMANENT PHOTO -POINTS AS SHOWN ON MONITORING PLAN.
COVERED AT ALL TIMES WITH MUD AND/OR WET STRAW, MOSS, OR OTHER SUITABLE PACKING MATERIAL UNTIL TIME OF INSTALLATION. PLANTS WHOSE
ROOTS HAVE DRIED OUT FROM EXPOSURE WILL NOT BE ACCEPTED AT INSTALLATION INSPECTION. D. CONTINGENCY PLAN: SHOULD ANY MONITORING REPORT REVEAL THE MITIGATION HAS FAILED IN WHOLE OR IN PART, AND SHOULD THAT
w ( IN FEET ) FAILURE BE BEYOND THE SCOPE OF ROUTINE MAINTENANCE, A CONTINGENCY PLAN WILL BE SUBMITTED. THE CONTINGENCY PLAN MAY RANGE
STREAM BUFFER ENHANCEMENT PLAN C. STORAGE: PLANTS STORED BY THE APPLICANT FOR LONGER THAN ONE MONTH PRIOR TO PLANTING SHALL BE PLANTED IN NURSERY ROWS, AND TREATED IN COMPLEXITY FROM A LIST OF PLANTS SUBSTITUTED, TO CROSS -SECTIONS OF PROPOSED ENGINEERED STRUCTURES. ONCE APPROVED, IT
m 1 inch = 20 ft. IN A MANNER SUITABLE TO THAT SPECIES HORTICULTURAL REQUIREMENTS. PLANTS MUST BE REINSPECTED BY THE WETLAND BIOLOGIST AND / OR MAY BE INSTALLED, AND WILL REPLACE THE APPROVED MITIGATION PLAN. IF THE FAILURE IS SUBSTANTIAL, THE CITY MAY EXTEND THE
SCALE = 1 -
1T-20 T LANDSCAPE DESIGNER PRIOR TO INSTALLATION. MONITORING PERIOD FOR THAT MITIGATION.
D. DAMAGED PLANTS: DAMAGED DRIED OUT, OR OTHERWISE MISHANDLED PLANTS WILL BE REJECTED AT INSTALLATION INSPECTION. ALL REJECTED PLANTS PREPARATION AND PLANTING NOES:
SHALL BE IMMEDIATELY REMOVED FROM THE SITE. -
1. ENSURE THAT ALL NON-NATIVE VEGETATION SUCH AS HIMALAYAN BLACKBERRY HAS BEEN REMOVED IN THE MITIGATION AREAS.
T_
W
I Call 2 Working Days Before You Dig
i 800-424-5555
Utilities Underground Location Center
(ID,MT,ND,OR,WA)
SAFETY PRECAUTION SHALL BE IMPLEMENTED BY CONTRACTOR(S) AT ALL TRENCHING IN
ACCORDANCE WITH CURRENT OSHA STANDARDS
ELECTRIC - RED SEWER -GREEN GASIOIL-YELLOW SURVEY - PINK TEUCATV-ORANGE
PROPOSED - WHITE WATER -BLUE
PLANT MATERIALS FOR
STREAM
BUFFER ENHANCEMENT
SYMBOL
COMMON NAME SCIENTIFIC NAME
SIZE TOTAL
NUMBER
STRATUM
SPACING
MAX
SITE PLACEMENT
LIGHT NEEDS
ON
HEIGHT
CENTER
OE
EVERGREEN HUCKLEBERRY VACCINIUM OVATUM
2 GAL.
4
SHRUB
4'
5'
DRIER BUFFER
SHADE TOLERANT
OO
SHORT OREGON GRAPE BERBERIES NERVOSA
2 GAL.
3
SHRUB
4'
4'
DRIER BUFFER
SHADE TOLERANT
OS
WESTERN SWORD FERN POLYSTICHUM MUNITUM
2 GAL.
10
FERN
3'
5'
DRIER BUFFER
SHADE TOLERANT
ATTACH SIGN TO
E. PLANT NAMES: PLANT NAMES SHALL COMPLY WITH THOSE GENERALLY ACCEPTED IN THE NATIVE PLANT NURSERY TRADE. ANY QUESTION REGARDING
2. DECONSOLIDATE DISTURBED SOIL TO A MINIMUM DEPTH OF 12". SPREAD 2" (TWO INCHES) OF VEGETATIVE COMPOST OVER BARE SOILS WITHIN
PLANT SPECIES OR VARIETY SHALL BE REFERRED TO THE LANDSCAPE DESIGNER, WETLAND BIOLOGIST OR CITY ECOLOGIST. ALL PLANT MATERIALS SHALL BE
MITIGATION AREA.
RUE TO SPECIES AND VARIETY AND LEGIBLY TAGGED.
3. MIX INTO SOIL TO A DEPTH OF 12" (TWELVE INCHES) USING A ROTOTILLER OR A SHOVEL.
F. PLANT SUBSTITUTIONS: PLANT SUBSTITUTIONS ARE NOT PERMITTED WITHOUT THE PERMISSION OF THE LANDSCAPE DESIGNER, WETLAND BIOLOGIST AND/OR
CITY ECOLOGIST. SAME SPECIES SUBSTITUTIONS OF LARGER SIZE DO NOT REQUIRE SPECIAL PERMISSION.
4. PUT PLANTS IN THEIR PLACES ACCORDING TO THE APPROVED BASIC MITIGATION PLAN.
G. QUALITY AND CONDITION: PLANTS SHALL BE NORMAL IN PATTERN OF GROWTH, HEALTHY, WELL -BRANCHED, VIGOROUS, WITH WELL -DEVELOPED ROOT
5. DIG SQUARE BOTTOMED HOLES FOR PLANTS, TWICE THE SIZE OF CONTAINER (SEE SHRUB PLANTING DETAIL).
SYSTEMS, AND FREE OF PESTS AND DISEASES. DAMAGED, DISEASED, PEST -INFESTED, SCRAPED, BRUISED, DRIED OUT, BURNED, BROKEN, OR DEFECTIVE
6. SCORE EDGES OF PLANTING HOLE WITH SHOVEL, SO THAT ROOTS CAN RAVEL OUTSIDE HOLE.
PLANTS WILL BE REJECTED. PLANTS WITH PRUNING WOUNDS OVER 1" IN DIAMETER WILL BE REJECTED.
7. LOOSEN PLANT ROOTS SLIGHTLY, AND PLACE IN CENTER OF HOLE, UPRIGHT AND LEVEL WITH GROUND SURFACE.
H. ROOTS. ALL PLANTS SHALL BE BALLED AND BURLAPPED OR CONTAINERIZED, UNLESS EXPLICITLY AUTHORIZED BY THE LANDSCAPE DESIGNER. ROOT
BOUND PLANTS OR B&B PLANTS WITH DAMAGED, CRACKED OR LOOSE ROOTBALLS WILL BE REJECTED. BARE ROOT PLANTINGS OF WOODY MATERIAL IS
8. AFTER ALL PLANTS HAVE BEEN PLANTED, HANDSEED OVER THE ENTIRE RESTORATION AREA. USE APPROXIMATELY 1-2 POUNDS OF GRASS SEED
ALLOWED ONLY WITH PERMISSION FROM THE LANDSCAPE DESIGNER.
MIX PER 1,000 SQ. FT. OF MITIGATION AREA USING THE SEED MIXES NOTED BELOW.
1- SIZES. PLANT SIZES SHALL BE AT LEAST THE SIZE INDICATED IN THE PLANT SCHEDULE. LARGER STOCK IS ACCEPTABLE PROVIDED THAT IT HAS NOT
9- WATER THE MITIGATION PLANTS WITH WATER RIGHT AFTER PLANTING. CONTINUE TO WATER AS NECESSARY TO ENSURE PLANT SURVIVAL.
BEEN CUT BACK TO SIZE SPECIFIED, AND THAT THE ROOT BALL IS PROPORTIONATE TO THE SIZE OF THE PLANT. MEASUREMENTS, CALIPER, BRANCHING AND
BALLING AND BURLAPPING SHALL CONFORM TO THE AMERICAN STANDARD OF NURSERY STOCK BY THE AMERICAN ASSOCIATION OF NURSERYMEN (LATEST
10. PLAN SHOWS PLANTS ARRANGED IN NATURALIZED CLUSTERS. PLAN SHOWS CERTAIN PLANTS IN THE WETTER BUFFER AND DRIER BUFFER,
EDITION).
ACCORDING TO THEIR WATER AND LIGHT NEEDS.
INVASIVE REMOVAL NOTES,
SE 164th St SE 164thi St
()Capitol NW
PROJECT
LOCATION
VICINITY MAP
SE 1641h St
SCALE: NTS
PROJECT INFORMATION
PROJECT NAME:
BETHANY CORNER 9-LOT SHORT PLAT
TAX PARCEL NUMBERS:
008800-0570 (NORTH)
008800-0560 (SOUTH)
SITE ADDRESSES:
SE 1 i54th St
15437 111th
Avenue Southeast
O Qxfc
A
ro
3�7=d0yKel y 01IdCEOU61010T
MARY K NGYUEN
9102 SE 41 ST STREET
MERCER ISLAND, WA 98040
PROPERTY OWNER (SOUTH):
RODNEY SEEK AND STEPHANIE RAY
16451 111TH AVENUE SE
RENTON, WA 98055
16437 111TH AVENUE SE, RENTON WA 98055 (NORTH) MARK SEEK
16451 111TH AVENUE SE, RENTON, WA 98055 (SOUTH) 15223 MANION WAY NE
DUVALL, WA 98019
SITE AREAS: MARKSEEK1@YAHOO.COM
CIVIL ENGINEER:
39,150 SQUARE FEET / 0.90 ACRES (NORTH)
40,500 SQUARE FEET / 0.93 ACRES (SOUTH)
JONATHAN MURRAY, P.E.
D.R. STRONG CONSULTING ENGINEERS
JURISDICTION:
20 7TH AVENUE
KIRKLAND, WA 98033
CITY OF RENTON
(425) 827-3063
WETLAND BIOLOGIST:
AREA CALCULATIONS:
MARK RIGOS, P.E.
440 SE DARST STREET
STREAM BUFFER ONSITE AREA
ISSAQUAH, WA 98027
= 411 SQUARE FEET
(425) 652-6013
STREAM BUFFER PROPOSED ENHANCEMENT AREA
MARKRIGOS@HOTMAIL.COM
= 411 SQUARE FEET
SURVEYOR:
SCOPE OF
D.R. STRONG ENGINEERS
S EPHEN SCHREIIP.L SING
620 7TH AVENUE
WORK
KIRKLANWA 98033
(425) 27-3063
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KEY MAP
SCALE = 1 "=80
R-400625
J. FORM: EVERGREEN TREES, IF USED, SHALL HAVE SINGLE TRUNKS AND SYMMETRICAL, WELL -DEVELOPED FORM. DECIDUOUS TREES SHALL BE SINGLE BEFORE INSTALLING PLANTINGS FOR RESTORATION AREAS, TAKE NOTE OF ANY INVASIVE WEED SPECIES FOUND ON -SITE. CONTROL OF THESE
RUNKED UNLESS SPECIFIED AS MULTI -STEM IN THE PLANT SCHEDULE. SHRUBS SHALL HAVE MULTIPLE STEMS, AND BE WELL -BRANCHED. SPECIES IS VERY IMPORTANT IN RESTORATION AREAS IN ORDER TO ALLOW FOR THE SUCCESSFUL ESTABLISHMENT OF PLANTINGS THAT MIGHT
ROUGH CEO AR TYPE OTHERWISE HAVE DIFFICULTY COMPETING WITH THESE AGGRESSIVE PLANTS. APPROVED FOR CONSTRUCTION
POSTS ARE PRECUT K. PLANTING: PLANTING SHALL BE DONE IN ACCORDANCE WITH ILLUSTRATED DETAILS IN THE MITIGATION PLAN SET AND ACCEPTED INDUSTRY STANDARDS.
8 (TR�ANGU�AR) FOR FENCE RAIL WHERE ENCOUNTERED, INVASIVE WEEDS SHOULD BE REMOVED MANUALLY WITHOUT THE USE OF PESTICIDE (INCLUDES HERBICIDE), EXCEPT IN
_I -I L. WEEDING: EXISTING AND EXOTIC VEGETATION IN THE MITIGATION AND BUFFER AREAS WILL BE HAND WEEDED FROM AROUND ALL NEWLY INSTALLED PLANTS RARE CASES WHEN APPLIED BY A STATE LICENSED PESTICIDE APPLICATOR. MANUAL REMOVAL CAN BE ACCOMPLISHED BY GRUBBING OUT SUBJECT TO ERRORS AND OMISSIONS
INSERTS AT THE TIME OF INSTALLATION. NO CHEMICAL CONTROL OF VEGETATION ON ANY PORTION OF THE SITE IS ALLOWED WITHOUT THE WRITTEN PERMISSION OF THE PLANTS AND ROOTS ENTIRELY (INCLUDING SEED PODS, FRUITS AND LEAVES) WITHOUT SIMULTANEOUSLY SPREADING MORE SEEDS. THE IDEAL
_- - TIME FOR REMOVAL IS PRIOR TO FLOWERING IN SPRING OR SUMMER. IF REMOVAL IS TO OCCUR AFTER FLOWERING, IT IS RECOMMENDED THAT
CITY. FLOWERS BE CUT OFF AND DISPOSED OF PRIOR TO GRUBBING. GRUBBED OUT MATERIALS SHOULD BE DISPOSED OF OFF -SITE IMMEDIATELY,
i _ __-_- - - - 4" TO 6" ROUGH SINCE MANY OF THESE SPECIES ARE STILL CAPABLE OF PROPAGATING POST -REMOVAL. DO NOT USE WEED MATERIALS FOR MULCH AND DO
8 - - - - CEDAR RAIL M. COMPOST: ALL LANDSCAPED AREAS DENUDED OF VEGETATION AND ALL PLANTING PIT AREAS SHALL RECEIVE NO LESS THAN 2" OF COMPOST AFTER NOT PUT INTO COMPOST OR YARD WASTE BINS.
I _ _ - - - _ PLANTING. COMPOST SHALL BE KEPT WELL AWAY (AT LEAST 2") FROM THE TRUNKS AND STEMS OF WOODY PLANTS. COMPOST SHALL BE CEDAR GROVE PURE BY: DATE:
COMPOST OR APPROVED EQUAL. NO BARK PRODUCTS OR SAWDUST WILL BE PERMITTED. WEED -FREE STRAW MAY BE REQUIRED FOR APPLICATION OVER ONCE THE INVASIVE SPECIES HAVE BEEN REMOVED, YOU CAN ASSESS SITE SOIL QUALITY. CERTAIN INVASIVE SPECIES SUCH AS SCOTCH BROOM
COMPOST FOR EROSION CONTROL (SEE EROSION CONTROL NOTES). DISPERSES THOUSANDS OF SEEDS PER PLANT. IN EXTREME CASES, TOPSOIL REMOVAL MAY BE NECESSARY TO EVACUATE THE INVASIVE SEED
12" TO 16" _ - - BANK. DENSE NATIVE PLANTING IS RECOMMENDED AND HAS PROVEN SUCCESSFUL AT PREVENTING WEEDY AND/OR INVASIVE SPECIES FROM
_ _ I I N. SITE CONDITIONS: CONTRACTOR SHALL IMMEDIATELY NOTIFY THE LANDSCAPE DESIGNER AND WETLAND BIOLOGIST OF DRAINAGE OR SOIL CONDITIONS LIKELY REEMERGING. BY: DATE:
-_- - - TO BE DETRIMENTAL TO THE GROWTH OR SURVIVAL OF PLANTS. PLANTING OPERATIONS SHALL NOT BE CONDUCTED UNDER THE FOLLOWING CONDITIONS:
4"X4" ROUGH FREEZING WEATHER, WHEN THE GROUND IS FROZEN, EXCESSIVELY WET WEATHER, EXCESSIVELY WINDY WEATHER, OR IN EXCESSIVE HEAT.
i CEDAR POST 0. PLANT LOCATIONS: LOCATIONS SHALL BE AS DEPICTED IN THE APPROVED PLAN SET. THE LANDSCAPE DESIGNER AND / OR WETLAND BIOLOGIST MAY BY: DATE:
(TRIANGULAR) CHANGE THE LOCATIONS OF PLANTINGS SHOWN ON PLANS BASED ON FIELD CONDITIONS.
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EARTH OR P. PLANTING IN PITS: PLANTING PITS SHALL BE CIRCULAR OR SQUARE WITH VERTICAL SIDES, AND SHALL BE 6" DEEPER AND 12" LARGER IN DIAMETER THAN
CONCRETE THE ROOT BALL OF THE PLANT. BREAK UP THE SIDES OF THE PIT IN COMPACTED SOILS. SET PLANTS UPRIGHT IN PITS, WITH CROWN OF ROOT BALL 2"-3" BY: DATE:
ABOVE FINAL GRADE. BURLAP SHALL BE REMOVED FROM THE PLANTING PIT. BACKFILL SHALL BE TAMPED DOWN FIRMLY.
2' MIN NOTES: 000
1) POSTS AND RAILINGS ARE SURVEYED" SCAM*vERncAL raw 1ae6 DATIr
PRECUT FOR ASSEMBLY D.R. STRONG 1
2) 3 RAILS ARE PERMITTED � �°=20 HORIZONTAL° NAD 1983/1991 � CITY OF �o 19 19
6" GRAVEL oo° 3) FENCES SHALL BE PLACED AT MARK RIGOS
PAU%
THE APPROVED BUFFER EDGE
+ MB RENTON
BETHANY CORNER 9-LOT SHORT PLAT
ONE INCH DATUM DRAB NM
SPLIT -RAIL CEDAR FENCE DETAIL_ 1 CITY COMMENTS a+ECKM. AT FULL SCALE Planning/Building/Public Works Dept. STREAM BUFFER ENHANCEMENT PLAN IF NOT ONE INCH
NTS NO. REVISION BY DATE AP P R APPROVED-- SCALE ACCORDINGLY SHEET* 1 OP 1
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