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Home My WebLink AboutLarge Format...-..... >/ CONTOUR INTERVAL: l' BASED ON KING COUNTY SURVEY JAN. 2010. NU .... x, , \ I / , BY DATE , , /' 0 0 + + 0 0 + ...,. EXISTING TOP OF BANK \ \ -..... _-~ ---------------------r'\ I I ~ \ , , , APPROVED: PROJECT "'ANAGER: DESIGNED: DON DOUG CHIN DESIGN ENTERED: \ KCFCZD No. 11 PROJECT No. 9A1205 SURVEY No. MAINTENANCE DIVISION No. 4 \ \ \ EXISTING TOE STREAMBED 0 0 + .... ' .... \ OF ------------- \ \ ~~_\_~ .... \ \ \ \ \ \ \\ \ \ \ \ \\ ~ .. ,("\ \ .-'0~ \ \ \ \ \ \ \ \ ) / \ \ \ ---~---~~~--~-~ -- SCALE IN o o + 0) INn DAYS BEF=oRISYOU DIG - o o + o (UNDERGROUND UTIU1Y ARE APPROX,) SHEET 1 tQ King County , MAY CREEK DRAINAGE Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director , TOPOGRAPHY MAP OF AUG -5 lUll 1 fA?!E!tt"IPI/IIn SHEETS -4\~{S;1J IY~{[J 1------1 / SCALE IN FEET NOTE: -- LOG PLACEMENT TO BE DIRECTED IN THE FIELD BY THE ENGINEER/ECOLOGIST. SEE LOG TABLE AND MITIGATION CONSTRU'yTrO~'NOTES SHEET 17. LOG LOCATIONS SHOWN ON THIS SHEET ARJ:/CONCEPTUAL ONLY. ~/ ./ / ./ \ \/,,~~// \ INSTALL 3-STRAND BARBED-WIRE) BONWELL 2914 LYONS AVE NE PLANT 15' BUFFER WETLAND VEGETATION FRO G TABLE SHEET 1 I I I I 11\ \ ) . C ... ~--. -. ···31"1"-"·''-- ~'" ' •. ", ~~c<;;:. :r~ ~)l1,;;.-, ·v(, -':)1 <9V,<'~ . ~-'? •• .. .. ~~~. I -~·~··----·-"-31 +-__ .-./ ;;;"-'='rrn WITH •• •• ,~, ... • •• • d<. v .... •• ., • ffIJ ,... WCil A #!!W iii .Y·WD it iii fifJ! e U F"F[: fifJ! fifJ! • f? 1IfI""" •. ~. INSTALL 3-STRAND BARBED-WIRE FENCE WITH T -POSTS, TO BE FIELD ADJUSTED AS DIRECTED TO ATCH MITIGATION AREA. 1-----t-------:-:;;;;;;"IrF~d_-jr__--j APPROVED: ~::":-':":::':":"::":::'==:L....:..P.:::.E:::.... ___ +-,-,-=.::...:..,1'-1 FENCE WITH T -POSTS. TO BE / FIELD TO FIELD BOOK:,=~~~0~9~0~56~~0~1-~2~O~1 ~~~~i~~~~~£~~~~~~~~~~~(~~~~~J~~~~3 KCFCZD No. KING COUNTY 01-201 PROJECT DOUG CHIN 1 SURVEYED: MANAGER: ..::::.:=....::::.:...:.::..:....------+-'-'-"'-'--'--1 PROJECT No. __ 9_A1_2_0_5 __ -1I SURVEY 8i\SE MA~:IN~G~C:O~U~NTY~~0~2~20~1~=±:::;p\C-~~~~~~=t=+==t TREVOR CRAY, PLS ~....lI;I~~~~~-;;;;;;:1""'r::;i\+--+--1I----1 DESIGNED ', ...,:D:.;".A;:::LE::.....;,.:N;:::EL:,::S..:..ON ______ +-'-' __ ,_I SURVEY No. -------; CHECKED: ~~Qfb!L-----+l..f1~-i MAINTENANCE DESIGN ENTERED: -= DIVISION No. ___ 4'---_--1 NUM. DATE -- APPLY PROPEX 8418 OR EQUIVALENT AS DESCRIBED SHEET 17, NOTES (B) 4. PLANT WITH WETLAND ENHANCEMENT VEGETATION FROM TABLE ON SHEET 18 . lIJ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director I ! I I I I' I i • I i I I ' ' II I -~ , --- CAll 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MERIDIAN W.S.L.G.N.Z. NAD 83/91 NAVD 88 SHEET 1 MAY CREEK DRAINAGE IMPROVEMENT City of Hellton PI' . anninfj DiVision OF 5 fEHABlUTATION PI..AN9 WE11.ANdv)HjilfFAFIAN I-_S_H_EET_S_-l m1QAlION srA. 0+00 -srA 7tQQ " .. 'nJie::, t,~ UI'tIJE []) 2006-16 .'i1 0.0 ,: ,v'" 'VDlr/{ t"C'"("Tlrlll.'!'/?>Y/ . STA R~no TO S·'Ji. "" "": . ..: .. 111.1 .: I~AVE R()orS IN S>"'rVcil(, A I ('["('_TIO)II"",",. ct-vlcmlr' I, L'io."i.n "Z'o,i::: r\. to.: I) '::'.:' '-~~~ I I \.. .~ .. /:: ...... ~ ................. t ••.•••••••••••••••• : ........................................ : •••••• 3.( os 0 .................... , ..................................... :~O'5 .• QO'... RJi. INI< ..... ) ...................................... :: ...... ,: .Y./;.1.; ~ ITII '~'~'~A":-;'~:;:'.'" I.; ~ .. y .. ",' I ~ ..... , .. ; .. ~.5.: 'T.REAMBEr. ................. ~ .................. f ................... ; ........... --.--~ .. I.U>J. . ..u.....1 .HJ;LU .......................... ~ ................... ·················T· .. ·············[····· .. ··········:········S nl~, '-1\1 i!j!=..MQ\ A . :f . : I :. :. . "r . .~.... Vl:.l;!:..!,A! 1111\ ~!:1\,jCiVAL . I : '. .;. : ::;CAl,'· 1 = '.L.Y::.1. = p : . . . ; . :.:; : SC!\~E: H: 1 = itJ·; V: 1 =~, : .. , '. . : .: . :.. ..' :. . : : . : . : : . '. . . . . ".J". , .' I • : .............. '?"? j '-!Y ........ :?~.! ~~ ........ f:?I~~ ........ ~Y.! ~'-! ......... 1 .. ~tl:'.l:' ......... I.y.~~.~ .......... ?:.I:-!.'! .............. !-:-.............. ~: f!y .......... ~Yi~Y ......... ~.? !l:'.'! ........ fYi ~'-! ........ ~~ I ~~ ........ :-?~.! ~~ ................................. ~ ............. ~~t :!~ ........ '?l:'.i ~~ ............. , .. ~~ ....... ~.~.i ~~ ......... I .. ? I UY ........ ~ Y.~~.~ ......... :!.: t'y .............. r. .............. ~: ~Y .......... I .• ~ .~:-:'.~ ••••••... I.?(~y ........ :'7.~.i ~~ ........ ~? (~~ ....... '?Y.! ~~ ... . STREAMBED GRAVEL FOR ALCOVE APPLICATION: ,<' ' " US STD. SIEVE SIZE PERCENT PASSING BY WEJGHT FlELD BOOK: SURVEYED: : : : : " ~ ~:[E ~:'V"'-::'1"1 tIFII...t'I,ONS THIS ;:'~I:.I:.I : ~ : : ~ : 40]00 30iOO 20iOO I 10iOO ( 10ioo 20jOO 30ioo 40]00 50iDO I 60iOO 70iDO BOiOO 90iOO 1 00.00 11D~00 12 TYPICAL SECTION OHWM NOTE: HABITAT MITIGATION ALCOVE GRADING STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 OLSON, P. AND E. STOCKDALE. 2010. DETERMINING THE ORDINARY HIGH WATER MARK ON STREAMS IN WASHINGTON STATE. SECOND REVIEW DRAFT. WASHINGTON STATE DEPARTMENT OF ECOLOGY, SHORELANDS 7 ENVIRONMENTAL ASSISTANCE PROGRAM, LACEY, WA. ECOLOGY PUBLICATION #08-08-001. FIELD STAKED BY KING COUNTY ENGINEER III. ENVIRONMENTAL UNIT MARCH 2011. SCALE: H: 1 "=1 0', V: 1"=10' -"'-DON ALTI-'AI I<:I'"R P.E. 7/2011 -,...\~, APPROVED: 09056 01-201v • \. """" ~ .J \ I KCFCZD No. KING COUNlY 01 201 n ....,1 . , .... .... "' PROJECT DOUG CHIN 7/2011 I '. --I ,\ .j MANAGER: SURVEY BASE ~ING COUNlY 02 201u ~-""II ....., PROJECT No. 9A1205 -.,-DALE NELSON 7/2011 SURVEY No. TREVOR CRAY. PLS 02 2010 ~ ~-'\ DESIGNED: f' I)' Ul " CHECKED: nAI F MI'"l "'riM 02-2010 1: ,.-If' \LllI- MAINTENANCE _" .-DESIGN ENlERED: M. RADELLA 7/2011 4 DIVISION No. NUM. ElY DAlE 6 INCHES 4 INCHES 1 1/2 INCH 3/4 INCH 3/8 INCH NO.4 NO. 40 NO. 200 70-80 55-70 45-60 30-50 25-35 16-30 15-20 COBBLES MAY BE INCLUDED IN THE GRAVEL AND ALL COBBLES THAN 4 INCHES IN DIAMETER SHALL BE EXCLUDED FROM THE GRADATION TEST. GRAVEL AND COBBLES SHALL BE ROUNDED. LARGER 0-5 ~ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director CAll 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILl1Y LOCATIONS ARE APPROX.) MAY CREEK DRAINAGE IMPROVEMENT SHEET 2 OF 5 2006-16 REHABUrATION fI..AN: CRC)SS ~ AND HABITAT MllQAlION cerAI S N C IJ lUll Ii;\! i:;: {"'3 r,'·~, 0 SHEETS i: 0 I : I : ~ ND I~·"I::;~.T I'A'L '_LA I lUI N()fFC::' .~ . I ': : I C ~E~~~~I' MI::, "vv.;> Jt(. . ~_ ""\ ,11"11:.1\ ... , "".1-I;;I~ ''f0~ " I .... ~ ....... 0·:···A-lG0VE·o '-"", ~ •• -.: .0 ....... 1 ........ 0; .. 0 ... 00 100000.0.0;000000.00 .0000 .. 0 .. ;00000000. 0000.0000'.00.000 .......... 0 ; _ ... L 'TO' _.,,:,..... \I\I~' " .. ,~ : I: ~ rL 30 ~ rUU I LO~ MIt-. 12'~ DBI-. : . : w MAN ,,{A t<AY" AI In ; ::::., • .i,. JI<:: ..;: ()I\I~ nl=T, III ".I~ ~ '7 fiELD BOOK: SURVEYED: 1n :nn TYPICAL SECTION -HABITAT MITIGATION LOG PLACEMENT HABITAT FLOODPLAIN AREA AND ALCOVE STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 SCALE: H: 1"=10', V: 1"=10' _'" 1 APPROVED: DON ALTI-lAII~I='R P.E 09056 01 201 :::;;; .r"" U "l" "" . r J' -II KING COUNTY 01 2010 ....,( -, l-'-"1 PROJECT nOll(::; CHIN I\, , IV -If ..I .. J MANAGER: SURVEY BASE ~ING COUNTY 02-201u _I -~. "II ....... -.1 ~ "-' TREVOR CRAY, PLS 02-2010 I" F\' .. II ,'II ~ ,"I DESIGNED: DAlE NELSON CHECKED: DALE M!"I ~/"\'" n~ .2010 '{ " I' '\( .l.--DESIGN ENTERED: M. RAn!"1 I IJ. NUM. BY DATE 7/2011 KCFCZD Noo 7/2011 PROJECT Noo 9A1205 7/2011 SURVEY No. 7/2011 MAINTENANCE DIVISION No. 4 SCALE: H: 1" -205'; V: 1" =2.5' tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True. Director CAll 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROXo) MAY CREEK DRAINAGE IMPROVEMENT SHEET 3 OF 5 SHEETS If.)} ','0 ~~' .. ~. 2006-16 '";';li 1'71£{Q) ---_ ... _- LOG TABLE # of LOGS LOG SIZE LOG ROOTWAD OR 3/4" NON-GALVINIZED CHAIN LENGTH WITHOUT (W/OUT) FINISH GRADE -~IN LOGS WITH 5/8" DIAM. REBAR CUT FLUSH TO LOG 16 60 7 5 4 total 30 30 total ALCOVE AREAS 18"-24" dbh 3D' 16"-18" dbh 30' 12"-18" dbh 3D' FLOODPLAIN ROUGHNESS 12"-14"dbh 30' 12"-18"dbh 30' PROVIDE MANTA RAY MR-1 ANCHOR PER '---15' MIN. DEPTH BELOW FINISH GRADE. ACQUIRE 6' EMBEDMENT IN CONSOLIDATED SOIL LAYER. TEST HOLDING CAPACITY PER MANTA RAY VENDOR SPECIFICATIONS. 2 27'min LOG WITH 5/16" DIA. STAINLESS STEEL CABLE FROM ANCHOR TO CHAIN ATTACHMENT EYE AT EXISTING GRADE. CONNECT WITH LOK-A-LOY 10 CONNECTING LINK OR EQUIVALENT. o e SECTION LOG WITH ANCHORS SNAG DETAIL NTS NTS SNAG WI AT LEAST 4 UMBS ATIACHED OR REATIACHED FILL TOP 12" INCHES WITH SAME MATERIAL AS ADJACENT AREA INFILL WITH CRUSHED SURFACING BASE COURSE. TAMP TO COMPACT 13 '---" 13 ~ SNAG NOTES: • 78 total Attach sign to post with two 5/16 plvanUed lag bolts with wais"'", 8' p~4c.roll' presstir .. tr~ WETLAND PROTECTION SIGNAGE NTS 1. WILDLIFE SNAG TO BE PLACED AS DIRECTED BY ENGINEER OR ECOLOGIST. 2. ALL SNAGS SHALL BE WESTERN RED CEDAR OR DOUGLAS-FIR TREES WITH A SUBSTANTIAL PORTION OF THEIR LIMBS LEFT INTACT. DO NOT TRIM TOPS, AS DAMAGED OR BROKEN TOPS ARE PREFERRED. PROVIDE LOGS WITH NUMEROUS UNTRIMMED LIMBS, WITH A MINIMUM OF 6 LIMBS. LOGS USED FOR SNAGS MAY BE PARTIALLY HOLLOW AND CONTAIN CAVITIES AS LONG AS THEY ARE GENERALLY SOUND AND INTACT. 3. SNAGS SHALL BE A MINIMUM OF 10 INCHES IN DIAMETER AT BREAST HEIGHT (DBH) WHEN INSTALLED AND SHALL BE PLACED INTO THE GROUND TO A DEPTH EQUAL TO 1/3 OF TREE HEIGHT BELOW GROUND. 4. SNAGS WITH SUBSTANTIAL ROOT MASSES ATTACHED MAY BE PLACED TO THE DEPTH INDICATED AND BACKFILLED WITH QUARRY SPALLS AND SOIL ONLY UPON APPROVAL BY THE ENGINEER. rootwads rootwads rootwads w/out rootwads snags MITIGATION PLAN NOTES (A) CONSTRUCTION NOTES 1. TREES TO BE PRESERVED WILL BE FLAGGED IN THE FIELD BY THE ECOLOGIST. 2. INSTALL SILT FENCES WHERE DESIGNATED ON THE PLANS. INSTALL ANY OTHER EROSION AND SEDIMENT CONTROL MEASURES AS REQUESTED BY THE ENGINEER 3. ELEVATION SHOWN ARE FINAL GRADE, 4 TO 6 INCHES OF OVER-X WILL OCCUR AND BE BACKFILLED FILLED WITH STREAMBED GRAVELS OR COMPOST WHERE INDICATED ON PLANS. 4. EXCAVATION OF ALCOVES ADJACENT TO THE STREAM CHANNEL SHALL TAKE PLACE ONLY DURING THE FISH WINDOWS AS DESIGNATED IN THE PERMITS. WHEN EXCAVATING ADJACENT THE STREAM CHANNEL AN EARTH PLUG SHALL BE LEFT BETWEEN THE EXISTING STREAM CHANNEL AND THE EXCAVATION AREA. PRIOR TO REMOVING THE EARTH PLUG AND CONNECTING THE EXCAVATED CHANNEL, A TURBIDITY CURTAIN SHALL BE INSTALLED AS SHOWN IN THE DETAILS TO PROTECT THE STREAM FROM SEDIMENT AND TURBIDITY DURING CONNECTION. 5. IF ANY GROUNDWATER IS ENCOUNTERED DURING EXCAVATION, DEWATER BY PUMPING AND BROADCASTING TURBID WATER THROUGH SILT FENCE AND DISSIPATED OVER VEGETATED STRIP IN UPLAND AREAS OF THE SITE. IF GROUND BECOMES SATURATED A BAKER TANK SHALL BE USED. 6. ELEVATIONS ASSOCIATED WITH CONTOURING ALCOVE AND FLOODPLAIN AREAS IS TO BE DIRECTED BY ECOLOGIST IN THE FIELD. 7. PARTIALLY BURY AND PLACE LOGS IN THE EXCAVATED ALCOVE, LOG PLACEMENT SHOWN IN THE PLANS ARE SCHEMATIC; ACTUAL PLACEMENT AND ARRANGEMENT TO BE DETERMINED BY THE ECOLOGIST IN THE FIELD. ANCHOR AS SHOWN IN PLAN DETAILS. 8. PLACE 6 INCHES OF STREAMBED GRAVELS WITHIN THE ALCOVE AREA. 9. PLANT EMERGENTS AND SHRUBS IN ALCOVES ACCORDING TO PLANTING PLAN. 10. REMOVE TEMPORARY STABILIZED CONSTRUCTION ENTRANCES AND REMOVE HIGH-VISIBILITY FENCES, AND ANY OTHER EROSION CONTROL MEASURES STILL INSTALLED AT THE SITE. 11. CONTRACTOR SHALL PROVIDE STREAM ISOLATION / TURBIDITY CURTAIN PER WASHINGTON DEPARTMENT OF ECOLOGY STANDARDS. (A) PLANTING NOTES 1. MITIGATION PLANTING PLANS REPRESENT A CONCEPTUAL PLANT LAYOUT. ALL MITIGATION PLANTING PREPARATION WILL BE DIRECTED IN THE FIELD BY THE ECOLOGIST. 2. PLANTING SHALL TAKE PLACE DURING THE DORMANT SEASON (NOVEMBER 1 ST THROUGH FEBRUARY 28TH). PLANTING MAY BE ALLOWED AT OTHER TIMES AFTER REVIEW AND WRITTEN APPROVAL BY THE ECOLOGIST. 3. APPLY JUTE EROSION CONTROL FABRIC AS DIRECTED BY ECOLOGIST WITHIN THE FLOODPLAIN EXCAVATION AREAS AND ALL PLANTING AREAS WHERE REED CANARY GRASS HAS BEEN COMPLETELY REMOVED. 4. IN ALL PLANTING AREAS WHERE REED CANARY GRASS IS PRESENT, FIRST MOW THE GRASS. COVER MOWED REED CANARY GRASS WITH PROPEX 8418 (OR A SIMILAR BARRIER MATERIAL AS APPROVED BY THE ECOLOGIST) AS NEEDED AND DIRECTED BY ECOLOGIST. AND STAKE IN PLACE USING LIVE STAKES. 5. PLANT STAKES AND TREES AS DIRECTED BY THE ECOLOGIST THROUGH THE PROPEX (OR EQUIVALENT). 6. ALL PLANTS SHALL BE NURSERY GROWN A MINIMUM OF ONE YEAR. PLANT MATERIAL IS TO BE SUPPLIED BY COMMERCIAL NURSERIES THAT SPECIALIZE IN PLANTS NATIVE TO THE PACIFIC NORTHWEST. PLANT MATERIAL SUBSTITUTIONS ARE SUBJECT TO APPROVAL BY THE ECOLOGIST. 7. NO TACKIFIER, HERBICIDE. OR FERTILIZER SHALL BE USED IN THE PLANTING AREAS. (A) GENERAL NOTES 1. TO PREVENT REESTABLISHMENT OF INVASIVE VEGETATION. THE TOP 24 INCHES OF EXCAVATED SOIL IS NOT TO BE REUSED AS FILL ANYWHERE ON THE PROJECT SITE. (D) KING COUNTY WETLAND/STREAM PROTECTION SIGN INSTALLATION NOTES: s THE WETLAND/STREAM PROTECTION SIGNS SHALL BE POSTED ON THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT. s ONE SIGN SHALL BE POSTED FOR EVERY 150-FEET OF THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT IN A PROMINENT LOCATION. SIGNS MAY ALSO BE ATTACHED TO NEW AND EXISTING FARM FENCES. e SIGNS ARE AVAILABLE FOR $9.22 FROM: KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES 900 OAKS DALE AVENUE SOUTHWEST RENTON, WA 98055-1219 CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MAY CREEK DRAINAGE IMPROVEMENT SHEET 4 King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director , ~, OF 5 SHEETS 2006-16 o o + \ ~ " May Creek Riparian Buffer Planting, west 8. east of 148th Ave SE C'PLANT~NG~~ 0 ( o v nOn Latin Name Common Name Size/Specifications Trees Alnus rubra Red alder 6-8' Height Plant 9' O,C. Picea sitchensis Sitka spmce 5 gal., 5-6' Height Full Dense Foliage Plant 9' O.c. Populus balsamifera spp. Black cottonwood 6' stake, top on, I" diameter trichoc(lllJa Plant 9' O.c. Thuja pliclata Western red cedar 5 gal., 5-6' Height Full Dense Foliage Plant 9' O.c. ShrubslWiliows Comus sericea Red-oiser dogwood Bare root, Minimum 36" Long Plant 3' O.C. Salix lasiandra Pacific willow Live Stakes, 6' Long, 1/2-1" Diameter Plant 3' O.C. - Salix sitchensis Sitka willow Live Stakes, 6' Long, 112-1" Diameter Plant 3' O.C. May Creek Wetland Enhancement Planting Plan -west of 148tll Ave SE * Total Area: Approximately 130,680 square fee! (3 acres) latin Name Populus trichocarpa Cornus sericea Salix lasiandra Salix silchensis WILL BE NOTES ON SHEET 16. Common Name Black Cottonwood Red-oiser dogwood Pacific willow Sitka willow Size/Specifications 6 1 stake, top on, I" diameter Plant 9' O.C Bare rool, Minimum 12" Long Plant 3' O.C. Live Stakes, 6' Long, 112-1" Diameter Plant 3' o,c. Live Stakes, 6' Long, 1/2-1" Diameter Plant 3' O.C. flEW BOOK: _-:-:=-;0~9~0~5~6+0~1~-~2~0~1-t==t==:::::::::;;;:=J~~~~~~~='t----1I----I SURVEYED: KING COUNlY 01-2010 su~ ~E ~1~N~G~CO~U~N~lY~~0~2~-~2~O~1~=:t;:~~~~~:j~~~~=±=j:==:j TREVOR CRAY, PLS NUM, Quantity 260 260 260 260 2755 2855 2855 Quantity 7,000 300 8,000 3,000 SEE \ ~t:·~ I 1 I I \ ~ __ ,,,,~~"_~,,~7"CC:'~ -~-__ '\,--x -- \ 'h \ ,~,, __ ~_<,,:;:'::_~-4'c--\ _~_O\>\ \\ C'~,' ~/ \ ,'-~ , --,~ i \-------,-/ 0) 8 '~~ \\", c-,~·-"'·-----~·::-~-·--..,.,. ~ ~ \ \. '" cy \ EAST OF 148TH AVE SE \ f BUFFER MITIGATION PLANTING \ ~ SCALE: H: 1" -60' ! -' "" ('-----,----,--~ -', ", ',I , -~---.. \ -."" --",-\ --_ ',__ '----"'1"".~ ~'""_ ..., ·11 -'- May Creek Alcoves Planting Plan ~ "" west of 148th Avenue SE Latin Name Common Name Size/Specifications Quantity Emergents -for alcoves near stream Scirpus acutus Hardstem bulbrush Plug (Plant 12" O.C.) 500 Eleocharis palustris Common spike-rush Plug (Plant 12" O.C.) 500 Carex stipata Sawbeak sedge Plug (Plant 12" O.C.) 500 ShrubslWillows Cornus sericea Red-oiser dogwood Bare root, mi. 12" long 175 Plant 3' O.C. - Physocarpus capitatus Pacific ninebark Bare root, mi. 12" long 150 Plant 3' O.C. Rosa pisocarpa Pea fruited rose Bare root, mi. 12" long 250 Plant 3' O.C. Rubus spectabilis Salmonberry Bare root, mi. 12" long 150 Plant 3' O.C. Live Stakes Salix silchensis Sitka willow Minimum 6' Long 3/4-1" 300 Diameter Plant 3' O_c. Live stakes Salix laslandra Pacific willow Minimum 6' long 300 Minimum 3/4" -1" diameter Plant)' O.C. Live pole cutting Populus trichocatpa Black Cottonwood Minimum 6' long Minimum 3/4"-1 11 diameter 250 Plant 3' O.C. EROSION CONTROL SEED MIXES WETLAND AREA 67% Dwarf Tall Fescue 10% Seaside Colonial 8entgrass 10% Meadow Foxtail 5% Western Mannagrass 6% Red Fescue 2% Clover UPLAND AREA 20% Dwarf Tall Fescue \ I '\ \ \ ~A- \ \ , . 30% 30% 10% Dwarf Perennial Ryegrass "Barclay" Red Fescue White Clover WEST OF 148TH AVE SE MITIGATION PLANTING 10% Colonial 8entgrass 9A1205 4 SCALE: H: 1" = 60' King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director f", \ .~ 'I\; !? 'I"~ \ \,.'~ ~'-::-::: '-",;" , CAll 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APIJR(1,)( SHEET 5 OF 5 SHEETS 2006- -r - - -J \ \ I " I 1\ FIELD BOOK: 09056 SURVEYED: KING COUNTY SURVEY BASE ~ING COUNTY TREVOR CRAY, PLS CHECKED: DALE NELSON ! I ~ , I - i 1-i I 1--+-1 - , ~ ~ \--t--' , VICINITY MAP COALFIELD PROJECT oLOCATION :?u 9 I--0 r ~ w (f) / w > -« I f--- "T co ..- /I I . )"".-. )l ~ """" \ I 1 Til/ I I) 1-= I \ I-- I I Q INDEX SHEET DESCRIPTION 1. VICINITY MAP AND INDEX 2. LEGENDS AND ABBREVIATIONS 3. SUMMARY AND QUANTITIES (draft version) 4. EXISTING CONDITIONS, SHEET KEY, LEGEND, CONSTRUCTION NOTES 5. TEMPORARY EROSION AND SEDIMENT CONTROL PLAN AND LEGEND 6. TEMPORARY EROSION AND SEDIMENT CONTROL PLAN 7. TESC SEDIMENT DISPOSAL AND PUMPING LOCATIONS (draft version) 8. TEMPORARY EROSION AND SEDIMENT CONTROL NOTES AND DETAILS 9. TEMPORARY EROSION AND SEDIMENT DETAILS 10. PLAN AND PROFILE STA. 0+00 TO STA 8+00 11. PLAN AND PROFILE, STA. 8+00 TO STA. 16+20 12. PLAN AND PROFILE, STA. 16+20 TO STA. 24+00 13. PLAN AND PROFILE, STA. 24+00 TO STA 29+00 END OF PROJECT 14. WETLAND AND RIPARIAN MITIGATION PLAN 15. CROSS SECTIONS AND HABITAT MITIGATION DETAILS 16. CROSS SECTIONS AND HABITAT MITIGATION DETAILS 17. FISH HABITAT ENHANCEMENT INSTALLATION DETAILS AND NOTES 18. PLANTING PLAN 01-2010 APPROVED: DON ALTHAUSER, P.E. 7 2011 01-2010 PROJECT DOUG CHIN 7 2011 KCFC~D No. MANAGER: 02-2010 PROJECT No. 02-2010 DESIGNED: DALE NELSON 7/2011 SURVEY No. 02-2010 -MAINTENANCE -DESIGN ENTERED: M. RADELLA 7 2011 DIVISION ~ No. NUM. R SION BY DATE 9A1205 4 ~, " '" ). .. ,' '\ ' , King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director , Department of Natural Resources and Parks C' ~ ~-" .;j; ~j ,->,." ' '," . ~,~ I, \,\,' ';-\ .. MA YCREEI{DRAINA~E':0fM'PROVEMENT SE May Valley Rd. +14~ttii Ave SE ti King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director MAY CREEK DRAINAGE IMPROVEMENT VICINTY MAP AND N)EX -~-~ ~ --------- SHEET 1 OF 18 SHEETS 2006-16 SYMBOL o ·.-------.-- DESCRIPTION EXISTING SYMBOL DESCRIPTION MONUMENT IN CASE (MIC) HUB AND TACK REBAR AND CAP KING COUNTY BERNTSEN NAIL FORMER FENCE POSTS, GATE POSTS r--- - - - - --- 1----0HW ----OHW --- EXISTING DRIVEWAY, EDGE OF ASPHALT PROPERTY LINE O.H.W.M. LINE --x--x--x--x--x-FENCE -WIRE, BARBED WIRE, SPLIT RAIL GUARDRAIL -EXISTING LOGS UTILITY POLE WITH OR WITHOUT UNDERGROUND CONNECTIONS -.. -.. -.. -.. -.. -TOE OF CHANNEL -MAY, LONG T GUY WIRE SIGN TELEPHONE RISER WATER VALVE LARGE ROCK/BOULDER o TREE DECIDUOUS ~ SNAG (DEAD TREE) TREE BUSH/SHRUB TREE EVERGREEN SYMBOL DESCRIPTION -.. -.. -.. -.. -.. -MARSH, AND INDIAN MEADOW CREEKS ROCK RETAINING WALL AT TSEGAY ENTRANCE ~ __ w ___ w ___ w ___ _ EXISTING WETLAND BOUNDARY .... '" 1M ............... !OIl '" ... ... ... ... ... .. .. EXISTING WETLAND BUFFER . m Cl 1--- TEMPORARY EROSION SEDIMENTATION CONTROL SYMBOL "'1!! . •• EXISTING STREAM BUFFER 100 YR. FLOODPLAIN LINE DESCRIPTION CONSTRUCTION ACCESS ROAD STAGING AREA SPOILS AREA ----C&G----CLEARING AND GRADING LIMITS aDD DaD D D WEIGHTED SILT CURTAIN x X X )( X SILT FENCE -.","1 DESIGN LEGEND AijtJ2i2ilittVb1 SEDIMENT REMOVAL AREA IN-STREAM WILLOW PRUNING AREA --. - -. -PLANTING MITIGATION LINE (15' BUFFER) ABBREVIATIONS ABBREVIATION DEFINITION '.,,-- NOTES: 1. PARCEL LINES SHOWN ARE KING COUNTY GIS PARCEL LINES AND ARE SHOWN FOR VISUAL PURPOSES ONLY. THESE PARCEL LINES ARE NOT ACCURATE ENOUGH TO BE USED FOR PURPOSES OF SURVEYING, DEED TAKES, OR ANY OTHER LAND TRANSACTIONS OR DELINEATIONS. 2. BASIS OF BEARING FOR THIS PROJECT IS NZ01' 12"E, THE INVERSE BETWEEN KING COUNTY CONTROL POINTS 3871 (N188995.987, E1316685.925) AND 3705 (N191108.582, E1316760,441)(NAD 83/91 COORDINATE VALUES). 3. BENCH MARK IS KING COUNTY CONTROL POINT NUMBER 3871, WITH A NAVD88 ELEVATION OF 405.42. SEC TWN R. E W.M. STA. R-O~W SECTION TOWNSHIP RANGE EAST WILLAMETTE MERIDIAN STATION RIGHT OF WAY .... MERIDIAN W.S.L.G.N.Z. NAD 83/91 NAVD 88 AiJG -6 lOll SHEET 1--11--------_-.-= r~.,.U-F .. ~l .... \d-"'j-t----t APPROVED: DON ALTHAUSER, P.E. 09056 01-20 1 Oll--II-----.---:;~'\F-~"" .. -J-.1, ,k'_~rt--'r-_+--:/;--__t 712011 til King County· MAY CREEK DRAINAGE IMPROVEMENT 2 SURVEYED: KING COUNTY 01 2010 SURVEY BASE ~ING COUNTY 02 2010 ....,j 1 -. 'I -1 PROJECT KCFCZD No. --------11 MANAGER: .D::,:O:..::U""G....:C::,:.H.::.:IN-'--_____ --11-7:..L7/-=:2;.::.0..:...11'-1 ' I ~ . - [ .\ J' -PROJECT No. __ ....:9:.:.,A:.:.,12=.c0:..:5'----_-t ",--, - TREVOR CRAY, PLS 02 2010 .. 1\1 ..ll ,. ,.., DESIGNED: DALE NELSON 7/2011 SURVEY No. -------1 ~~~~~-----~~-- CHECKED: DALE NELSON 02 2010 t ~ -n \01.-\ \ MAINTENANCE I--II------J~----'J.I!!""'''------_+-t--__t DESIGN ENTERED: -.:M:!!:.:...:.!!RA.!!:D:.!::E!::!LLA::..:-____ -I-7:..t.1f'...::2~0,;,,11:_1 DIVISION No. ___ ...:.4 __ --1 NUM. R~SION BY DATE Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Direc/or LEGEI\DS AND ABB.1EVIATIONS OF 18 SHEETS 2006-16 SUMMARY OF QUANTITIES PROJECT LIMITS: x ITEM NO. TOTAL QUANTITY UNIT STD. ITEM NO. LENGTH: X PROJECT NUMBERS AS BUILT ITEM x ~----~------.1----1----1----------------------~== 1---~-----+---~---~==================--+I-=-=-=·rF=-=-=-r~-=-=~-~~-=-=-~-=-=~-~~-=~-II ~.---r---------J-----~-----Ir~-· =====~ERa~LGGN~~~C:~:~~I:HOL~~AND::~~=================-~~~=====F======1~=====t=======~====~~=====1 =======-----------·------I·====I==~---~---r---~·---I ~~====I-===~==t=====================~=4===t==='-==-r--+---1 ITEM NO. TOTAL QUANTITY UNIT PROJECT NUMBERS AS BUILT ITEM =:JL=:j===t==---------------====l====-,---t---+.---~---~--__ I 'Vlty 0: 1'1 r.: .. :-~-.:~~nO::~::O)I~::~I.IA::I::J[II:O)I~::~:~:'I~J'~~~~.~.~~~~~~~iC~~;;~~;;r:::::~::=:;:~~~~:=:=~~~~J=====================~--------------~~----________ ~-------------------------------,-----------------------------------------r----*"~p~~:n:J--en fun nlrJl 0/---VISiOn _~, AUf-,." FIELD BOOKK::=~~~0~90~5~6~0~1~2~OH1 O~=~~~~~E~-~,...~·'\(~~ ,,·'\~"'ojt~t=j APPROVED: DON ALTHAUSER. P.E. 7/2011 ' SURVEYED:_ KING COUNlY 01 2010 '1 C'jv j";' ~'-r-.' J"( PROJECT 7' "2011 KCFCZD No. _______ --1 SHI~l~rc~b ,1ffE;'I[} SURVEY BASE MA~ING COUNlY 02-20101--t---j~~~;;;;;or1~~-\::::.,l'L¥Ll--=----I MANAGER: DOUG CHIN 'I' l~fI King County MAY CREEK DRAINAGE IMPROVEMENT lY _f"':."".,: '\ _ PROJECT No. __ ....:9:.:...A:..;.;12::.:0:.:5~_-I D 3 _T~R~EV:O~R~C:RA~Y~. ~P~LS~0~2~2~0~1 o~~~~~-~.r~--:'~\o"'\~~' t:_~ • .." '~~~Etj==~ Department of Natural Resources and Parks .-,,1 :...It"'-..\" DESIGNED: DALE NELSON 7/2011 SURVEY N Water and Land Resources Division OF CHECKED: DALE NELSON 02 2010 t ~ _ \ \ o. -------1 Stormwater Services Seclion I _ i.. V C, ... , "",",~ "," 18 ~ DESIGN ENTERED: -,M::.:.:._R~A~D:!::.EL~LA~ ____ +7!J.1 /~:2~0!.:11q MAINTENANCE ~ ..... UDY REVISION BY DATE DIVISION No. ___ ..:..4 __ --1 Christie True, Director ~"IIIIII·'''''' OF OUANTTTlES SHEETS NUM. 2006-16 SEC. 3, HOLD PRECONSTRUCTION MEETING. \ \ ESTABLISH REQUIRED SIGNAGE AND TRAFFIC PLAN REQUIREMENTS AS APPROVED BY KING COUNTY ENGINEER. STAKE OR FLAG THE LIMITS OF CONSTRUCTION. SEE NOTES 13, 16, AND 17 FOR CONSTRUCTION LIMITS. LOCATE AND MARK UTILITIES INSTALL TEMPORARY EROSION CONTROL MEASURES SHOWN ON SHEETS 5 TO 9. INSTALL CONSTRUCTION ACCESS RAMP AND CONSTRUCTION ENTRANCE PAD AS NEEDED AND APPROVED IN THE FIELD BY ENGINEER. INSTALL STAGING AND TURN AROUND AREAS AS APPROVED IN THE FIELD BY THE ENGINEER. TO MINIMIZE DISTURBANCE TO EXISTING NATIVE VEGETATION, MACHINERY ACCESS ALONG \ ..., THE STREAM WILL ONLY BE ALLOWED APPROXIMATELY EVERY 50 FEET AS SHOWN ON ' 14 ,-1-----------.....- --1--- -----SEC. 2,TWN.23, R."5 E, W.M. '----- ___ ..JlA~JI~IDER s+ RASPHAL BUTTAR """,0'f0 148TH AVE SE S.E. /\fAY VALLEY ROAD "'" HAROLD GAM BINI, JR .. 15019 S.E. MAY VALLEY RD \. ~~9J) \'\, \ \ \ r-_ -..... DESIGN LEGEND f?,P?2~0?7/0?:;~'7:~'7.~""'~""'%1 SEDIMENT REMOVAL AREA tiH79!1 IN-STREAM WILLOW PRUNING AREA ----------WETLAND BUFFER (110') -,- PER KING COUNTY CAO REGULATION (FOR PURPOSES OF THIS PROJECT ONLY) STREAM BUFFER (165') PER KING COUNTY CAO REGULATION (FOR PURPOSES OF THIS PROJECT ONLY) EXISTING LEGEND - . . _ . . - . . -TOE (BOTTOM) OF STREAM -- - - - --DRIVEWAY LINE -x--x--x--FENCE • SURVEY CONTROL ---PROPERTY LINES ---------RR O-W LINES _'¥ ____ '¥ __ IDELINEATED WETLAND -----PLANTING MITIGATION LINE (15' BUFFER) WHITNEY & JEFFREY WALKER 15125 S.E. MAY VALLEY RD @ MARY LOUISE CEL/GOY ___ ~-,15329 S.E. MAY '. <[~O§) LLEY RD \ W.S.L.G.N.Z. NAD 83/91 NAVD 88 SHEETS 5 AND 11. \ REMOVE FLOW OBSTRUCTING WILLOWS AS DESCRIBED IN NOTES 13 TO 15. -::;;;::~3~~3 O. REMOVE SEDIMENT AND REED CANARY GRASS AS DESCRIBED IN NOTES 16 TO 21. !-----I: -'\-I,Llh'-(-+.,..~ ~~~'""'::-: ..::: ~~~~~~~ 1. REMOVE ANY TEMPORARY CONSTRUCTION ENTRANCES AND ACCESS ROADS THAT ARE NOT ~ \-~~~~1-f~t~~ NEEDED FOR MITIGATION CONSTRUCTION \ 2. CONSTRUCT MITIGATION AND REVEGETATE AS SHOWN ON SHEETS 14 TO 18. 3. WILLOW EM OVAL WILL OCCUR IN SELECTED LOCATIONS FROM STA 0+00 TO STA 5+40; SEE TABLE ON SHEET 10 AND DETAIL SHEET 15. 4. WILLOW BRANCHES AND ROOTS THAT ARE LIMITING THE STREAM FLOW WILL BE REMOVED BY HAND AND/OR HANDHELD SMALL MACHINERY TO MINIMIZE DISTURBANCE. WILLOW BRANCHES THAT ARE NOT LIMITING STREAM FLOW WILL NOT BE REMOVED. EXACT WILLOWS TO BE REMOVED WILL BE DIRECTED IN THE FIELD BY THE ENGINEER OR ECOLOGIST. 5. WOODY NATIVE VEGETATION THAT IS REMOVED WILL BE MULCHED AND SPREAD OVER REED CANARY GRASS TO SHADE OUT GRASS AS DIRECTED IN THE FIELD BY THE ENGINEER OR ECOLOGIST. 6. SEDIMENT REMOVAL IN THE CHANNEL WILL OCCUR FROM STA 5+40 TO STA 26+26 7. REED CANARY GRASS REMOVAL IN THE CHANNEL WILL OCCUR IN SELECT LOCATIONS FROM STA 0+00 TO STA 29+00. SEE TABLE ON SHEET 10. 8. MACHINERY FOR REMOVING SEDIMENT AND REED CANARY GRASS SHALL BE OPERATED FROM THE BANK. 9. SEDIMENT AND REED CANARY GRASS REMOVAL SHALL BE DONE IN THE DRY. A STREAM BYPASS PLAN SHALL BE SUBMITIED TO THE ENGINEER IN ADVANCE OF INSTALLATION FOR FINAL APPROVAL. PRIOR TO INSTALLATION OF THE BYPASS THE KING COUNTY ECOLOGIST WILL REMOVE FISH FROM THE CHANNEL. DO NOT INSTALL THE BYPASS UNTIL YOU HAVE BEEN GIVEN PERMISSION BY THE KING COUNTY INSPECTOR TO DO SO. EXCAVATE SEDIMENT AND/OR REED CANARY GRASS FROM NOW DRY CHANNEL .. 1. RETURN FLOW TO CHANNEL UNDER DIRECTION OF ENGINEER/ECOLOGIST. SEE NOTES ON SHEET 8. APPROVED: PROJECT MANAGER: fiELD BOOK~.~~§~0~90~5~6+0~1~-~2~01~fl=-=-=-+f=-~i~i~~-~~~~~f!~'-~"~i~;" 5'-fer-~-21-~-~-=-~-l SURVEYED: KING COUNTY 01-2010 SURVEY BASE ~ING COUNTY 02-2010 TREVOR CRAY, PLS 02-2010 DESIGNED: , DON DOUG CHIN DALE NELSON CHECKED: --~:L~~I!,g:~,==t====1-:::~~=~j=t=j DESIGN ENTERED: NUM. SY DATE .. , ..,' ~" , 1 \ I \ . \ P.E. 1 1 1 NOTES: 1. PARCEL LINES SHOWN ARE KING COUNTY GIS PARCEL LINES AND ARE SHOWN FOR VISUAL PURPOSES ONLY. THESE PARCEL LINES ARE NOT ACCURATE ENOUGH TO BE USED FOR PURPOSES OF SURVEYING, DEED TAKES, OR ANY ,OTHER LAND TRANSACTIONS OR DELINEATIONS. KCFCZD No. PROJECT No. SURVEY No. 2. BASIS OF BEARING FOR THIS PROJECT IS N2'01'12"E, THE INVERSE BETWEEN KING COUNTY CONTROL POINTS 3871 (N188995.987, E1316685.925) AND 3705 (N191108.582, E1316760.441 )(NAD 83/91 COORDINATE VALUES) . 3. BENCH MARK IS KING COUNTY CONTROL POINT NUMBER 3871 WITH A NAVD88 ELEVATION OF 405.42. ' tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section 9A1205 Capital Services Unit MAINTENANCE 4 Christie True, Director DIVISION No. MAY CREEK DRAINAGE IMPROVEMENT ~ CON:>ITIONS, SI-EET KEY, lEGEN), CONSTRUCTION NOTES SHEET 4 OF 18 City S :1 --- II ::S> X ---. --.... 1) ~~ I ----S.E. MAY VALLEY ROAD STREAM R (165')----J SCALE IN FEET W 2 ';;! :1« W(f) 5'2 20 0)- <0-' / r-_ \ \ TESC LEGEND f+ + + + + + + + + + + \t+++".± /' ...... I!!l Ill!! ... Ill' ...... 111 ..... leY ~ ... t'V ljuFFEK \II /~...... ~ "'$OIJ>l ~ --~ --.... ~ ,- INSTALL WEIGHT~LT CURTAIN AND MAINTAIN 2-FOOT WIDE TEMPORARY PLUG FOR CHANNrL f\L'_u LD 9 ............. DED -:;i-\-~~~IN~T~EREST /" TRACT "A" HABITAT CONSTRUCTION "'T""TION o o __ I_~ -- o \ D HABITAT"'" WETLAND HABITAT MITIGATION AREA OFF-CHANNEL ---l\ \1.--ALCOVES STREAM BUFFER (100') MITI ,~ ........ 5', __ !2i' lilt;; - STAGING AREA REMOVE CONSTRUCTION ENTRANCE ACCESS PAD UPON COMPLETION OF CONSTRUCTION. PLANT ALL AREAS WITH NATIVE VEGETATION PER ECOLOGIST. STONEGATE 803540 \ \ ) / KXXxX;& DRYING AREA ACCESS ROAD CONSTRUCTION ENTRANCE STREAM ACCESS, APPROXIMATELY EVERY 50 FEET CONCRETE BARRIERS WITH PLASTIC LINER SANDBAG BARRIER OR EQUIVALENT BYPASS HOSE AND PUMP SILT FENCE - ....... PLANTING/MITIGATION BUFFER iliIl-_1IilI1· . __ STREAM BUFFER WEIGHTED SILT FENCE/CURTAIN !!III !ill! !I!lI !!II I!llI 1IlO IfII "'I ill! iiIIlllllll WETLAND BUFFER CLEARING AND GRADING LIMITS ----100 YR FLOODPLAIN MERIDIAN W.S.L.G.N.Z. NAD 83/91 NAVD 88 \ \ \ CALL 2 WORKING DAYS \ BEFORE YOU DIG 1-800-424-5555 \ (UNDERGROUND UTILIlY LOCATIONS ARE APPROX.) .....-- \ \ ----~~J~~~t=t==~;;~~i~~~~!~E~=l APPROVED: ....!D~O~N~:.!!:!~~.!.....!:P.:..!:.E:.:.... ___ +'...L.=.~11~1 09056 01-201 FIELD BOOK: KCFCZD No. _______ -1 PROJECT SURVEYED: _--:KI:N~G~C~O~U:N:TY:t~0~1-::.2:0~1~0l==t=j~t!.~~~~G;~~~~~~=t MANAGER: CHIN 11 SURVEY BASE ~ING COUNTY 02-201 ° PROJECT No. _--,9:..:..A:..:..12=-0:..:5--'_-I TREVOR CRAY, PLS DALE NELSON 1 SURVEY No. _______ --1 ~~~~~-----~~---I 11 MAINTENANCE 1--1-----I----lII!!!!....----t--+---j DESIGN ENTERED: _M::.:;.:.....;.:RAc..:::D:.=E:;:LLA=-.;... ____ --f--'--="-"'-'-1 DIVISION No. ___ ....:4--' __ -1 NU.... BY DATE CHECKED: N o \~ - - \ \ \ )( I \ WH!TNEY :t JEFFREY WALKER 15125 S'1 MAY VALLEY RD , ..... DUNVEGAN TRUST /,11-\' .' ",-:.-,~_;_-_x\\ \ \\ 1 L CONSTRUCTI;N\ t-~ I '\'~ ><" \.\.-\-EQUIPMENT WIGL NOT \ >< \ "" ......... \ ,\.. \ CRO~S EXISTINC\\BRIDGE x ~ / \ t~ \ ............ 'io~/"..,..... ... ......, \ \ _x --' ............ I '\ ~ I ...... ..t. ... ~ ...... ""'-r"" 'fI'-----.)( --~\ \ \ \ o o + o o + \ 0 \ xI \ 0><\\ =i= '\ g ,--~ ex:> I ~-~-~~~~~'-~~l~~~~~~~~~ TSEGE TSEGA Y & KIDANE A YELE ..c---~ 10008 148TH A liE S. E. .-~ NEEI~J E(;OUDGI~5T TO AVOID " '\ TO MATURE TREES. OFF ---"-----:---, EQUIPMENT REQUIRED TO -STREAM BYPASS SUMP, \ INIMllE-SFEE--"tMPAe:F-lo...J~LUDE -PUMP, HOSES AND EPOLQGY TRACK~E5<CAVATOR. OR EQDIVA[Er\JT;-~BLOCK/S:rE~L 'PLATE bAM TQ BE Ai'iO TRACKED DUMP OR . RELOCAftD'AS "CONSTRUCTION PROCEEDS -b'9=.J-1~-:.~\ __ ~ eQUIVALENT. ALONG CREEK. . FENCES TO BE TEMnur""" LY RELOCATED AND RESTORED CONSTRUCTION SILT FENCE ffi 9 ............. ~ ~ '----rrm STROCTION ENTRANCE. ,--AVOID EXISTING UTILITIES -r..; ...... BALJIN S+ 9846 TSEGE TSE'J:iAY & KIDANE A 1 148THt;.. VE S.E . ...-----. -- '10015 ff AYELE Y S.E. ~ LT FENCE ON DOWN SIDE .. OF SOIL DR)nNG'~~EA. .. ~ SUMP NEEDED SOUTH SOIL DRYING AREA '-- ti King County MAY CREEK DRAINAGE IMPROVEMENT 5 Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director 1B.4PORARY Efl()SIQt,I AN) *' lfCNTATION CXWrROL PLAN, LEGEH> OF 18 SHEETS " : '; .-'" I ~. \\ ---\ HAROLD GAM BINI, JR 15019 S.E. MAY VALLEY RD --1 ~ -------~~ r I 'I ~~i-. \\ '--- ~ (/) \, Lt') , '- , ............ we ' ' \ \ \ If), o o + -~X -~X -,...,. ~~~=-=~TSEGE & KIDANE A YELE . 10008 148TH AVE S. E. _---'"'.--"-:;.t ~-. .. ---~ ____ ---;-;:;7~ EAM BYPASS SUM , MP, HOSES AND ECOLOGY BLOCK/STEEL PLATE DAM TO BE -...... RELOCATED AS CONSTRUCTION PROCEEDS ALONG """II~~~~~:: __ "'"-;;;Ef>Jit ~ _ J'i\1 • im iIi'i!lII • lIlH • "'--"",.~~ _... --~ .. ---------\\~~: ~ !!: §J ---__......' '*' -.--~ ---' .. ~ ..:..--.:. -----------------'---"---= ------... ----- -- BALJINDER S+ RASPHAL BUTTAR 9846 148TH AVE SE SOUTH Ace!ESS ROAD EXISTING FENCE GA ~~:::::::===:: TSEGE 10008 1 &KIDANE IIYt;;LE::---~---= S.E. ---- I STREAM BUFFER (165')---J I \ \ / ~ t ., II If \ '\; __ 4 r WHITNEY & JEFFREY WALKER l"l : 15125 S.E. MAY VALLEY RDY \ , ~: ' . ..-------1 ".y- / 4> \ /~ \ 4> '" \ . • .. 4>4> \ \ x / ~~,. x \ ~4> l_x--1: ................ y.,- .................. ~v _f..--~..... --r "-_f..- \ \ r r r r r r I I -• _Q~-X ..::-:: o o -± CO t I r I x \ I I r I SURVEYED: KING COUNTY 01-2010 PROJECT MANAGER: DOUG CHIN 1 SURVEY BASE ~ING COUNTY 02-2010 KCFCZD No. PROJECT No. _---=9:.:..A:.,:.1 =.:20:.:5=---_-1 FIELD BOO~:~~~~0~90~5~6BO~1~-:2[01~r'ffffff~~~f~~~~~~ff~~f~~~if~~f~~ff~ APPROVED: ~~~~~!!t.....!~ ___ -+-!.i1:2.!.:'-1 TREVOR CRAY, PLS 02-201 0 ~~~'¥.,-~~~~~~~jt=±==1 DESIGNED: DALE NELSON CHECKED: _-~'='=-.ri.!:!~~Q£:~~I--lt....!.."":"'=--_""","=L}~'::::"ll-l_-+-_--I 11 SURVEY No. ______ --1 ~::-:-I-----I:""::""~~----if-+--1 DESIGN ENTERED:M 1~~~~ ____ -I-!.fl:Q.!..:'-1 MAINTENANCE 4 NUM. BY DATE -DIVISION No. ---~---I MARY LOUISE CELIGOY + JANET M NORTON 15329 S.E. MAY VALLEY RD -- IiiiiiFiiiFiii===iiiiiiiiiiiiiiiiiiiiiiiii===~CALL 2 WQfU(ING DAYS I -=-=-'-___ L-_--.Jl I BEFORE YOU DIG 60 0 60 120 160 1-800-424-5555 SCALE IN FEET (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MERIDIAN W.S.L.G.N.Z. NAD 83/91 .-~~ ~, --..::::0.'. *~ ~" .~ ~ .j>~ CONSTRUCTION ~ EQUIPMENT WILL ~ .... NOT CROSS ~~ EXISTING BRIDGE ~ NAVD 88 tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section MAY CREEK DRAINAGE IMPROVEMENT SHEET 6 OF Capital Services Unit Christie True. Director TEMPORARY EFlOSiON AND S I lfMENTATION CONTROL PLAN 18 SHEETS \ \ \ \ \ / \ \ FIELD BOOK: ____ 0_9_0_56-+_0_1-_2_0_1 SURVEYED: KING COUNTY 01-201 SURVEY BASE ~ING COUNTY 02-201 TREVOR CRAY, PLS \ \ \ \ .. 0· o· o· .. 0· _I~ PROMOTE INFILTRATION, USE A FORATED PIPE MANIFOLD OR EQUIVALENT TO DISPERSE DISCHARGE FLOW.~~-'-!J~~~I:.f'., ~ ___ -_____ P.E. 1 PROJECT KCFCZD No. -------1 MANAGER: ~~~C~H~IN~ _____ -+~~!....I PROJECT No. _---=9::.:A..:.:12:.:0~5 __ -t DESIGNED: ....:D:.:..A:.::;LE::.....:..:N:.::;EL=S~ON'-'---_____ t--'-=-'-'--l SURVEY No. -------1 CHECKED: __ .!:!ill:l:...J~~4-\:!.6::~.lL"" 1-------I't_-_.!.. _-= _-_-_-_-_-_-" 1-'_-;;; _;;-l .... 'J~~e _r-_-_ ...... _ ..... _-_tr-_-....,1--_-_-_---II DESIGN ENTERED: ...:M:.:;.:.c...;RA:.::.:::D.=:EL:::::LAo-:-____ p<-=.::-'-'-l. ~~I~T6~A~~~ __ --....:4 __ __I NUM. BY DATE ' .. U \- \ \ ~\\ ~ -x- '~ "", ~~ "" ............ '-, '~"" ............ ~ '"' \ _ -h\ .. ,,~ \ .'.-h~ tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Direotor \ \' \ MAY CREEK DRAINAGE IMPROVEMENT TESC SFlIfIENT DISPOSAL AN:) 1lJ&) WATER DlSFU &SION LOCATIONS 7 OF 18 SHEETS 2006-16 TEMPORARY EROSION AND SEDIMENT CONTROL NOTES: 1. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE CERTIFIED EROSION SEDIMENT CONTROL LEAD (CESCL) UNTIL ALL CONSTRUCTION IS APPROVED. 2. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING, WHERE DETERMINED NECESSARY BY ECOLOGIST, PRIOR TO CONSTRUCTION (2009 SWDM APPENDIX D). DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITIED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE CERTIFIED EROSION SEDIMENT CONTROL LEAD FOR THE DURATION OF CONSTRUCTION. 3. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES IS MINIMIZED. 4. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITION (e.g. ADDITIONAL COVER MEASURES, ADDITIONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT FENCES, PERIMETER PROTECTION, ETC.) AS DIRECTED BY THE PROJECT ENGINEER/ECOLOGIST. 5. THE ESC FACILITIES SHALL BE INSPECTED DAILY BY THE CERTIFIED EROSION SEDIMENT CONTROL LEAD AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF DAILY REVIEWS OF THE ESC FACILITIES. 6. WHERE APPROPRIATE, AREAS OF EXPOSED SOILS, INCLUDING EQUIPMENT ROUTES, THAT WILL NOT BE DISTURBED FOR TWO CONSECUTIVE DAYS DURING THE WET SEASON OR SEVEN DAYS DURING THE DRY SEASON SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC METHODS (e.g., SEEDING, MULCHING, PLASTIC COVERING, ETC.) 7. TEMPORARY PATHS USED FOR EQUIPMENT ACCESS WILL BE RESTORED TO ORIGINAL CONDITIONS ONCE CONSTRUCTION IS COMPLETED USING THE APPROPRIATE UPLAND OR WETLAND SEED MIX (SHEET 18). ONLY TRACK VEHICLES OR APPROVED EQUIPMENT ARE ALLOWED BEYOND ACCESS, LANDINGS AND STAGING AREAS. 8. ISOLATE MAY CREEK FROM CONSTRUCTION AREA BY USING COFFER DAM, AS DETERMINED FROM SITE CONDITIONS DURING CHANNEL EXCAVATION. INSTALL A CLEAN SUMP UPSTREAM OF COFFER DAM AND PUMP FROM SUMP TO SUITABLE LOCATION AS DETERMINED BY ENGINEER OR ECOLOGIST. 9. SECONDARY PUMP WILL BE USED IF EXCESSIVE GROUNDWATER IS ENCOUNTERED DURING CONSTRUCTION. SECONDARY PUMP WILL BE ON SITE AT ALL TIMES. 10. PUMP SYSTEM/SETUP TO BE FIELD ADJUSTED AS NEEDED AND DIRECTED BY PROJECT ENGINEER/ECOLOGIST. 11. REINTRODUCE STREAM FLOW TO THE EXCAVATED CHANNEL SLOWLY. DO NOT REINTRODUCE FLOW INTO THE EXISTING STREAM UNTIL THE FLOW MEETS STATE WATER QUALITY STANDARDS. PUMP TURBID WATER TO THE DESIGNATED VEGETATED UPLAND AREA OR A BAKER TANK. 12. MOVE PUMP SYSTEM/SETUP DOWNSTREAM AS CONSTRUCTION PROCEEDS AND AS DIRECTED BY PROJECT ENGINEER/ECOLOGIST. 13. MONITOR MAY CREEK UPSTREAM AND DOWNSTREAM OF THE CONSTRUCTION AREA TO MAKE SURE THAT STATE WATER QUALITY STANDARDS ARE MET AT ALL TIMES DURING CONSTRUCTION ACTIVITY. IF WATER QUALITY THRESHOLDS ARE EXCEEDED STOP CONSTRUCTION ACTIVITY AND MODIFY BMP'S TO BECOME COMPLIANT AS DIRECTED BY PROJECT ENGINEER/ECOLOGIST. 14. PRESERVE EXISTING NATIVE VEGETATION IN CLEARING AREA UNDER DIRECTION OF ECOLOGIST. FIELD BOOK: 09056 01 2010 SURVEYED: KING COUN1Y 01 2010 SURVEY BASE ~ING COUN1Y 02 2010 TREVOR CRAY, PLS 02 2010 ... 100.' CHECKED: DALE NELSON 02 2010 (' NUM. WELL VEGETATED UPLAND AREA -PUMP r<~ >--- / _ -SUMP (AS NEEDED) .. 0. . .0· '.0. '.0 GRADE SUMP AS DIRECTED BY THE ENGINEER OR CESCL AS NEEDED. CESCL SHALL INSPECT SUMP DAILY TO DETERMINE IF SOIL IS SATURATED. IF SOIL IS SATURATED PUMP EXCESS WATER TO TURBID WATER DISPOSAL AREA. PUMP WILL BE ON SITE AT ALL TIMES. IF TURBID WATER DISPOSAL AREA BECOMES SATURATED PUMP TURBID WATER TO BAKER TANK. SOIL DRYING SUMP DETAIL NTS ( SECONDARY r TOP OF BANK TO STABLE CHANNEL / ~200'1-1 __ -1-____ --. PUMP ON STANDBY PRIMARY PUMP (DOWNSTREAM) / / ' l' V~ ~b7r,-F~~\/~'N-'~~~~~K~[~\~/---\\~----\\7/------ 1_ .-+-. v ~ I~:-,~ I FLOW , i'! '</ Y/.N !", .. WASHED GRAVEL ___ " "j//{o,y/ DOWNSTREAM OOFFER DAM r-AND PUMP, SEE NOTE 11 24"¢ RISER THIS SHEET.' " . .. COFFER DAM , ~S'~~ON~~~';' ;~:P ~.\~, ,: (4" PUMP ON STANDBY ~ \ '.: .,-. '.-;",' ,,/('$.{('.(/(,<'/..V/.'ys-q , ~N~~~~~' S JMP~' )~0»f; 1"-1 1 " ROUND </ 2\.S')'Sv PERFORATED 24" 1/)-L-ECOLOGY BLOCK, SANDBAG -STREAMBED \, FOR WET CONDITIONS) " E~\ DISCHARGE TO _________ ---l 4~" P:~~~RYO~UMP STABLE CHANNEL, STANDBY FOR WET ALL MATERIALS SHALL BE REMOVED WHEN MOVING TEMPORARY CHANNEL BYPASS PIPE/RISER OR STEEL PLATE DEWATERING BARRIER BEYOND ACTIVE PLAN WORK AREA CONDITIONS) PROFILE (DOWNSTREAM) PLAN AND PROFILE VIEWS TEMPORARY CHANNEL BYPASS PUMP, DAM AND PIPE DETAIL (TYP.) NOT TO SCALE 5,6 '--'" TBIORARY EROSION AN) iflJIMe.lTATION NOTES AND DE 1MB OF 18 SHEETS 2006-16 r--RADIUS=25'MI.~N~. p-" ~ ,,$ ~ . ~Or ..<1~-9 't,'j.\S\\~G --(...-<':~~~,~) \~?/.~~~K~~~ ~ " >',:b~ + )Ym~ 100' MIN. ~K "\1~ \ INSTALL DRIVEWAY ~ Cf<~ fA CULVERT IF THERE IS A ~~ '+- ROADSIDE DITCH ,~X-~ .'H.~ PRESENT, PER KING ~~ "" f..?\ PER KING COUNTY ROAD STANDARDS, DRIVEWAYS SHALL BE PAVED TO THE EDGE OF R-O-W PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING THE ROADWAY. IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD. COUNTY ROAD STANDARDS jlY r-lif'-, 4"-8" QUARRY SPALLS '\ k 'WV GEOTEXTILE ~ !;>'15' MIN. UNDER SPALLS r ~ ~ PROVIDE FULL WIDTH OF ~ ./ . INGRESS/EGRESS AREA 12" MIN. THICKNESS CONSTRUCTION ENTRANCE JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EQUIVALENT TO ATIACH FABRIC TO POSTS l I I I 1 1 I 1 1 NOT TO SCALE I 1 1 -I 1 5,6 '-/ 2"X2" BY 14 Ga. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC~ ,--.- ANCHOR FABRIC ~ I ::i. WITH 3/4"-1/5'~ ::;;: WASHED GRAVEL ~ N NOTE: FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOUR WHENEVER POSSIBLE ~~1>:'0v;;007//y7y//.Y//.W»;A': '<;% . «0;~«< ;/" V , I<~:s:»:: z ---I 2' / ~/~ ::;;: 1 1 6' MAX. 1 1 U:----~~--~ 2"x4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT UNIVERSAL CONNECTORS l MARINE GRADE ALUMINUM o 0 o 0 o 0 0 0 0 0 0 0 0 0 0 FLOTATION; TENSION CABLE BELOW FLOTATION lJy I 0 'IIIOI---GROMM ETS LACED 0 0 00 00 00 )" 00 .£ ~BALLAST CHAIN 'lI. TOGETHER WITH MANILA ROPE CHAIN TENSIONED THROUGH STRESS PLATES, VIA HOOK AND RING CONNECTION CLEAR PLASTIC I COVER 24" FIELD VERIFY I I LEAVE EXISTING SOIL r SAND BAGS @ BOTH ENDS TO ANCHOR PLASTIC J BOTIOM OF NEW I STREAM ALCOVE 'TYPICAL ') TURBIDITY CURTAI7 . -,-..J. _ -(C'\ SILT CURTAIN NOT TO SCALE \ 5 ""'-.-/ \ '. \ \ -"-"--\ - MAY CREEK '_ .. -.. _ .. _ .. _ .. _ .. -"-" _ .. _ .. _ .. H L W 2' -0" 3'-0" 2' -0" 2' -0" 6' -0" 2' -0" .LMETAL LIFT RING /"'" . . ." .. y - SECTION TEMPORARY EROSION PLUG AT CHANNEL ALCOVE GRADING NTS '" VISQUEEN OVERLAP AT JOINTS A MINIMUM OF 1 FOOT. 3 /" .,,/ /' /" ".. ----///,,/ 5 '-/ ~'.: ... ··.·.··":·I . ./././ ././.// "" o! • ."' 4" 4. -4 • '.. /""../,./' /" T /...."....., --:;:;4 6: /:~. ./ ./ /./ ./ ./ ./ ./ . .... . '. . .", " "'.' .' DRYING SOIL". ?' . ./ 6"(il MIN. DRAIN ROCK BACKFILL AROUND 6" PERFORATED PIPE WITH FILTER FABRIC WRAPPED ALL SIDES. DRAIN TO SUMP .~. ::-:4;. ?;::"::A /1.:, ,;~.··.I:::../ ./ //./ ~// ./'f40 MIL VISQUEEN ' .•..... : •.. " . ....,....l •. ' .·1) .'./'/ ./ . ./ . ./ .. ' POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED ~L _\(W \ --'<f<;'7'~~1 ~. 1/-~~/~~~~/~0~~~<0 CONCRETE TONGUE AND GROOVE BLOCK »~~'»>-»>~»>):u-~~'»>'»>)»>V ; tt~F ltG,,, SILT FENCE {f\ SOIL DRYING CONTAINMENT (F,\ " YD"'.';'~D NOT TO SCAlf 5,6 NOT 10 SCAlf ~ 'k " ~b L-----------,----r-,~~=:--------.-~--;:'-/~--------------~~lr--------------~--------_r_=~~;:~--::~~-=-----------r~M~A~Y~CR~~E~E~K~.~DRA~~IN~A~G~E~IM~PAO~YE~M~E;NT~--S~9~E8;"~'~1~~w~~ 09056 0 1 20 1 0 • -I Department of Natural Resources and Parks FIELD BOOK: ~,./ -.... 1. Water and Land Resources Division SURVEYED: KING COUNTY 01 2010 L oJ'~ _ I.l 1\ StormwaterServicesSection SURVEY BASE ~~IN£G ~C~O~UN~TY~~0~2 ~2~0~1 0~-I---~~~.7r,~·C.~.r~.~a·-~'~= -::j=t===1 Capital Services Unit TREVOR CRAY, PLS 02-2010l=:::ir'al)].1~!.C~lle~~~~~;4""~"'+~~=~ Christie True, Director --~~~~~~~t-~_\~~~-~~~r\~~-~\~\~t==t==~ CHECKED: _ DALE NELSON 02 2010l---J. ____ -JLc....:-::.......JI.~--~v __ +:::-:-i----=-=_1 RE'lISION BY DATE NUM. TEMPORARY EROSION AN:) SEDIMENT ca-nROL DETALS OF 18 SHE8S 2006-16 REMOVE \Ir:-/~I:"TATI'''~V OBSTRUCTING CHANNEL FLOW AND GRASS AT THE DIRECTION OF OR ENGINEER PER VEGETATION CROSS SECTION DETAIL ON SHEET 15 D TABLE 2 ON THIS SHEET. ~liI'o/i ' ' ., _. . 2 . , Irm ' , i !Ill o NOTES: 1. SEDIMENT REMOVAL FROM STA. 5+40 TO STA. 26+26 2. STAGING AREA SHOWN ON SHEET 5 (SEGA'lr 5" PROPERlY) • T ' , • ... ' .....T", !!!!I!!. I IIIIITS:',"" .... ,,",,, o _ \ _ I!IiiIIII i 1IIIIIIII \ .,,_1 <1~ \ REMOVE SEDIMENT 5+40 TO~r-~'~~~ SEE lYPICAL SHEET 15 _'X-:-'IIlIllilI;,... I !111111111 -• --_ ' -_ I~ - __ 1_-'-_ ; !liB _ , _ ~ I _ I!IiiIIII i IIllII1I '~ PRU)E IN STREAM VEGETATION AT STATIONS LISTED IN TABLE 1 BELOW 1\ AND PER VEGETATION REMOVAL CROSS SECTION DETAIL SHEET 15 ~ \ " i \ "'\ TABLE 1 TABLE 2 Stationing of the In·Stream Willow Stationing of the I,n Stream Reed Pruning for May Creek Canary Grass Removal Station From Station To Station From Station To o+uo 01,30 0+30 0+70 0+ 70 I _c 50 1+50 3+00 3+00 4:50 4+50 4+90 4+ ~j() 5140 26+26 29+00 315.0 1" 30' HOR 310.0 __ ' J-.-_"--=-_ - 305.0 300.0 ~ TA Stationing of Sedi Station From 5+40 Re ~-. + BLE 3 ment and Vegetation moval Station To Am JIlT 26+26 ___ ~~;- 1--_____ -' 'V--_../ --" -------- _!- Q Q o ~'" PROXIMA STREAM BED /' -------.----. DO ,,'V\UI:. IN -.... SCALE IN FEET ~1lW--EXISTING GUARDRAIL IIIIn \ \ \ \ \ t;«ISTING GUYWIRE -l-\-+-+~nT~~01 ! 148TH BRIDGE D lOGE 315.0 IMENT 310.0 - 305.0 300.0 -0+90 -0+60 -0+30 0+00 0+30 0+60 0+90 1+20 1+50 1+80 2+10 2+40 2+70 3+00 3+30 3+60 3+90 4+20 4+50 4+80 5+10 5+40 5+70 6+006+ 6+60 6+90 7+20 7+50 7+80 CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 KCFCZO No. PROJECT No. _----'9"-A"-12:::.:0:.::5 __ --t TREVOR CRAY, PLS 02-201 0 1==a~~~~~~~:;;=d~=1~+=~ DESIGNED: DALE NELSON 1 SURVEY No. ______ --1 ~~~:::.::.::~-----~~~"- CHECKED: --...!el!b£....ill!~~~~I~=t~===~~"L~=~=I=+==1 DESIGN ENTERED: ....:M"" • ....:R..::..A'"'D=:EL=LA'-'--____ +..t....=.=-.:....:1_1 ~~I~T6~A~~~ ___ ..:..4 __ __I NUM. BY DATE ti King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director (UNDERGROUND UTILITY LOCATIONS ARE APPROX,) MAY CREEK DRAINAGE IMPROVEMENT PLAN AND PROFLE STA 0+00 TO STA B+OO SHEET 10/I 'lfIPrr" OF 18 SHEETS 2006- '7: 11111\ \ \ \ ",---\ SCALE IN FEET 73'" w' I!!II 111·' NOTE: • IMPACTS TO MATURE VEGETATION WILL BE MINIMIZED OR AVOIDED TO THE MAXIMUM EXTENT POSSIBLE UNDER THE DIRECTION OF ECOLOGIST IN THE FIELD. NO MATURE TREES SHALL BE REMOVED. • METHOD TO AVOID IMPACT: APPROXIMATELY EVERY 50 FEET, AT ONE SIDE. EXCAVATOR WILL ACCESS CREEK AT THE DIRECTION OF ENGINEER OR ECOLOGIST. SEE BELOW. --, 0 -'--...... • ~ _ i _ 1JI!lIlII' ..- 0> PLANTING MITIGATION --.--'--' 12:---( ~ TEMPORARY AC'CESS LANE 15' WIDE, SPACED APPROX. 50' APART (TYPICAL). EXISTING VEGETATION BETWEEN LANES WILL NOT BE DISTURBED. ACCESS LANE WILL EXTEND FROM CREEK TO EDGE OF WILLOWS. ACCESS POINTS WILL BE DIRECTED IN FIELD BY fECOLC)GI~;T TO AVOID DIS'rURBM~CE TO MATURE TREES. OFF ---'-_---=-'-ROAD EQUIPMENT REQUIRED TO ~-.,-------=:'~ "''''rE SITE IMPACT TO INCLUDE TRACKED EXCAVATOR, OR EQUIVALENT, AND TRACKED DUMP TRUCK OR EQUIVALENT. -EXISTING FARM FENCES TO BE --------TEIMP()RA,RIL·Y RELOCATED AND RESTORED AFTER CONSTRUCTION / EXISTING GUYWIRE -+\--+-I-_~~¥-/s.'£/II / Iii! J. m,., i .' i iI!l!I"i'" _III /.._ .' . ..'II . i I ,--... lib 3\,&7 s,'iii !I.'" .- \ 5.0 48TH RI AND ____ OOTBRIDG 10.0 XI liNG SED MENT -------'V'" -_ ----.. -'--" .. -.. --EXCAVATI N PROFI = 308' ._0' ""----. ..- ... ~ w' $7'0' . APP OXIMATE TREAM BE ----.. -- --_._._---- v __ x --x --x --x --x --x --x --X x -_x --~ ~-~:t;--~"l'¥--\~~--=--1! --,--_l~ -'-,-~ ~----_,_-, _' __ i __ ' ..... _--ri_~~1iIII -_~x-- \ \ IV \ ~- CONJUNCTION WITH SEDIMENT, ALSO .. REMOVE VEGETATION OBSTRUCTING CHANNEL FLOW AND REED CANARY GRASS AT THE DIRECTION OF ECOLOGIST OR ENGINEER PER CROSS SECTION DETAIL SHEET 15 ALONG STATIONS 5+40 THROUGH STA 29+00. 't-"'---.--_ ".375----- \ " "-. \~ ~ ~lo__ _____ ~-~~~, APIPROX~-"'TA'rlf"I~,a \ '-, ~ ---i5!~~_ \ '---''.378-. __ - ---' ----- CALL 2 WORKING DAYS BEFORE YOU DIG _~ __ ---..::1-800-424-5555 (UNDERGROUN[)--tJT~LOCATIONS ARE APPROX.) NOTES: 1..SEDIM NT REMO AL FROM STA. +40 TO A. 26+2 2. STAG I G /AREA S OWN ON SHEET 5 SEGAY 1" = 1" - -----+--'-------.. -' -'-" 315.0 310,0 305,0 7+50 7+80 8+10 8+40 8+70 9+00 9+30 9+60 9+90 0+20 0+50 10+80 1+10 1+40 1+70 12+00 2+30 2+60 2+90 13+20 3+50 3+80 4+10 14+40 4+70 5+00 5+30 15+60 5+90 6+20 1--J.---------,=--:-F":\'Id----J.---J APPROVED: ....:D:..::O:.:...:N....:..::::.:.:.::..=:::.:!.....:..P,:,:.E::.... ___ p-=-=-.;...1'-1 09056 01-201 01--+----:--;P""""'ii:G.-'-"'~'-T--t-~__J - FIELD BOOK:·=~~~~~~~~=~~1Ja;~~~~~iSf~~~=l KCFCZD No. SURVEYED: KING COUNTY 01-201 ~~~:g:R: ~~~C~H!!.!.:IN~ _____ +!..L.!:.~1!-..1 SURVEY BASE ~ING COUNTY 02-201 PROJECT No. __ 9_A1_2_0_5 __ -I TREVOR CRAY. PLS DESIGNED: DALE NELSON 1 SURVEY No. ______ --1 ~~~~~-----~~- CHECKED: --==-=-~2!:!./~~;uQ-I--\f.....!..":""'----t-::;;;"~~::.....l..l-+--I---I 1 MAINTENANCE I---+-----I--=-~=---+___t---I DESIGN ENTERED: ....;.M= • ....;.RA.::..=DE=.:L=LA-'---____ I--'-"-=-=--'-'-I DIVISION No. __ ---0.4 __ --1 NUM. BY DATE .,--"-"--_., ·_H~.;~'--- tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True. Director MAY CREEK DRAINAGE IMPROVEMENT PLAN AN) PRORLE STA 8+00 TO STA 16+20 SHEETS 2006- .• '" . 315.0 ~" 1" = ~o' HOR 1" = f VER ;,;. I, APPROX IMAl SED ~ENT ii'::7 .. fill ' , .'.11 ... e 1'1 . "'~·"lIIIII I 60 90 SCALE IN FEET \ .. , / ---+-'-1--- ---'---.-...=--r. - -I· --. -.. -i-.. -.. _ .. _ .. f--------I--------r--_ .. -.. -.. -,,-"-"1-----------------------------310.0 -:----310.0 1-__ -+-__ -+-__ +-__ +-__ +-__ +-__ I--_-I __ -+ __ -+ __ -I-~I=')(r.~!:ll,A"vU;lAm·~'N!....!:..!lI:PRO!L)IFI!!::!f-L.::....3~08·' +--::::;;..-+ ......... -+--.......,.-t=~:::::-~=_-r____;/-!_---:-~f-,-~ EXCIl:l.·JAV~ATI~ON... PROFI.E'= ~uo po NOT r-~~f)F IN C -IANNEL ~ 0 1 ow ELE'lI\TION 30sD' .. -I--.. L. -., -... ~ .. -~-/ - . 305.0 DC NOT GRJ~DE IN C~:;. 300.0 . 15+90 6+20 6+50 16+80 17+10 7+40 7+70 18+00 8+30 8+60 8+90 19+20 9+50 0+10 ?0f-40 0+70 1+00 1+30 21+60 1+90 2+20 2+50 22+80 3+10 3+40 IrLE-= . 3GB' .. --" _. 305.0 300.0 3+70 24+00 4+30 4+60 CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) Ie;, ~----------------~----~--~------------------~--~--~~------------------------~----~--------------------~--------------~------------~------------------------------T_--------------------------------------~--------~1~;2:.~· Of~ FIELD BOOK: 09056 01-201v 01 2010 02 201u SURVEYED: KING COUNTY SURVEY BASE MA~ING COUNTY CHECKED: TREVOR CRAY, PLS 02 2010 OAI F NELSON 02-201 ° ...." I NUM. .-... 7/2011 \;:: ':j\I~"I\-+-t---:/,----t APPROVED: DON ALTf-IA11<:.R P.E. .., _ '1 PROJECT KCFCZD No. 1- .t, MANAGER: ...:D:...:O'-=U.::.G...:C:..:..H::.;,IN'--_____ -+:...J.7',/c..::2!O:.;:.c...111;.....1 '-0.-' _ PROJECT No. _--=9.:..;,A1.:.;:2:..=0.=.5 __ -t .H .-\ BY DATE DESIGNED: DALE NELSON 7/2011 SURVEY No. ______ --1 -----------~-- ~"~.B n.~ •• "~ ... '!:!::~ ___ --I..l.~~ 'nn .. ~., 'q MAINTENANCE DESIGN ENTERED:~' IfL.UII DIVISION No. ___ 4 __ --1 ti King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director MAY CREEK DRAINAGE IMPROVEMENT PLAN AN) PROFILE STA 16+20 TO STA 24+00 . "-'fifo Dil/i". 11 141," '101) I'VO, b' lUI! SHEET 2006-16 113 u /' /' -1- 10.0 300_ / tr t IN CONJUNCTION WITH SEDIMENT, ALSO REMOVE VEGETATION OBSTRUCTING CHANNEL FLOW AND REED CANARY GRASS AT THE DIRECTION OF ECOLOGIST OR ENGINEER PER CROSS SECTION DETAIL SHEET 15 ALONG STATIONS 5+40 THROUGH STA 26+26. OTE: ~~ . I IMPACTS TO MATURE VEGETATION WILL BE MINIMIZED '" -E' OR AVOIDED TO THE MAXIMUM EXTENT POSSIBLE "" " "'t;~ER THE DIRECTION OF ECOLOGIST IN THE FIELD. I NO MATURE TREES SHALL BE REMOVED. ~I . METHOD T~~VOID IMPACT: APPROXIMATELY EVERY ,J 50 FEET, AT ~NE SIDE. EXCAVATOR WILL ACCESS ~ -x ~ ----x L .CREEK AT THE DIRECTION OF ENGINEER OR ~-,~ ECOLOGIST. SEE SHEET 11. --::'':-~)~---" ",~~~x~ ........ -.... ---x_-. ....... '--.. ~ --""x __ ____ ~I!t!:tt I ,~--... X -..... '--_____ ~, ' ____ . ~ ~ WIRE '____ ~ ~X~ ----, ~"-'''', ~-"-'----, ~ ~~~ "" ~~ ~1 ., , 1/ m: "', ~ , , , , , , 1. , ,,.' -,,~ !Ii!li !. ~i"j' , a. " . , '" '----, I ',-/ REMOVE SEDIMENT STA. 5+40 TO STA. 26+26 SEE 1YPICAL SECTION, SHEET 15 NOTE: o o + 1. STAGING AREA SHOWN PROPER1Y) ON SHEET 5, (SEGAY EXISTING IMENT PROXIMA STREAM BED REMOVE VEGEI NAND GRASS OBSTRUCTI 26+26 THROUGH STA. REED I ,A,'.AI"< NEL ALONG STA. +00 I D SPLIT RAIL --" .. II --------- - DO NOT o"rif\UI: IN :HAltiNF'1 BI:Ll.lVV FI FV,l>.TlltlN 308 --' <0 I-Z (/)W(!) -x-_ .---/ ../ ../../../ // r II II I II II II I II II I I? I I II I I If I II I II II II II II II NSTRUCTION ../ ...• , ~WI NOT CROSS EXISTING - I 310.0 305.0 300.0 23+70 24+00 4+30 4+60 4+90 25+20 5+50 5+80 6+10 26+40 6+70 27+00 7+30 27+60 7+90 28+20 8+50 28+80 29+10 9+40 9+70 30+00 0+30 0+60 0+90 31+20 1+50 1 +80 32+10 32+40 CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 09056 01-201 01--+------;;.....:6.-'-d\;~~-+__:___I APPROVED: ~~~~~C!....!:.:.!:.:...---I--!-L~!.!....I FIELD BOOK: ------+------I---l---::--.oor&l--\--H;;...s..L!..-=------:h~J.__l ~~~K~IN~G~CO~U~N~TY~~~m~~~~~~~~~~~§~~~@ PROJECT SURVEYED: MANAGER: SURVEY BASE ~ING COUNTY 02-201 TREVOR CRAY, PLS DESIGNED: KCFCZD No. PROJECT No. _--=9:.,;,A 1,;.:2:.;::0.::.5 __ -1 DALE NELSON 1 SURVEY No. ______ -1 ~~~~~-------~~~ DOUG CHIN 1 CHECKED: --!d,ill,~~~-r£:,,~l=~t~==~~.:z~=~=t=t==l DESIGN ENTERED: ....::M::..:.' --'RA.::.=DE=L=LA-'--____ r-:-'..::.::..:..;1~1 ~~I~T6~A~~~ __ ____=_4 __ ---I NUM. BY DATE tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director D MAY CREEK DRAINAGE IMPROVEMENT PLAN AK) PROFl.E STA 24tOO TO STA 29+00 ARE SHEET 13 OF 18 SCALE IN FEET NOTE: ... *.a, """, u:~. /1_ ~ 1111 111111 iiiii'.. " .... .... ""7.: .. .. .Itt ~ •• "'" "1 r "'" WETLAND BUFFER (25') ...... .. .. "'" J,. "'" , \)I ~ ·.A..,.ff»· ,\ • ~ ~ "1'..;.....,...,. .. \ O~ 1-IV .' ~/ •• \ ~ I "'" ~ IVA "'-+.. \ "'" "'" CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MERIDIAN W.S.L.G.N.Z. NAD 83/91 LOG PLACEMENT TO BE DIRECTED IN THE FIELD BY THE ENGINEER/ECOLOGIST. --" -.~-\ " ~ ~ APPLY PROPEX 8418 OR ' '-"'-\ •••• ~" SEE LOG TABLE AND MITIGATION SHEET 17. LOG LOCATIONS SHOWN ON THIS SHEET NCEPTUAL ONLY. BONWELL 2914 LYONS AVE NE PLANT 15' BUFFER WITH WETLAND VEGETATION CDr, •• NG TABLE SHEET 1 I / ", ! l / / ----.......---1, .. , ~~ ~R(-141 . ~ .~ ~ ""1~J Sv. I<'~ ~1' -.... ~]FFFR ~14--_.-.J Hl WITH " ••• +. •• * • •• *. + • •• / / +. ~ •• •• ~O-LAN iii. De l!i III .UrFtf? -fill. / 09056 01-201 SURVEYED: KING COUNTY 01-201 SURVEY BASE MA~ING COUNTY 02-201 ~ ••• ~ INSTALL 3-STRAND BARBED-WIRE FENCE WITH T -POSTS. TO BE FIELD ADJUSTED AS DIRECTED TO ATCH MITIGATION AREA. APPROVED: DON PROJECT MANAGER: DOUG CHIN TREVOR CRAY, PLS 02-2010~=cI)t:~~~E~~~A~=t=j==j DESIGNED: DALE NELSON CHECKED: _-~£...!~~-J-Ji~~lLI-~'t-!.......:-----7-::;;.~'-l:l~-Ll.-/-+---I DESIGN ENTERED: M. RADELLA NUM. SY DATE P.E. 1 1 1 1 KCFCZD No. PROJECT No. SURVEY No. INSTALL 3-STRAND BARBED-WIR~ FENCE WITH T -POSTS. TO BE:'1 FIELD ADJ JSTE:[V1~S~r l~",-~Ll-' 9A1205 MAINTENANCE 4 DIVISION No. EQUIVALENT AS DESCRIBED "'...... " ~ SHEET 17, NOTES (B) 4. "'-"... ~ PLANT WITH WETLAND ENHANCEMENT VEGETATION \ \ ~.~ '-~ ~ " FROM TABLE ON SHEET 18. . '-" ~~ 31. 'N"I\\\\\ ti King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director ~~ ~~ "--. • " 7 MAY CREEK DRAINAGE IMPROVEMENT WETl.AND Ate) RlPARAN WT1QAllON STA. otOO -STA 7+00 NAVD 88 , , SHEET 18 SHEETS 2006-16 _SI-J <::TA ~ An Tn C::TA .,,, "" h /. r!';\J1II "'''':''' ..>, .... U 'V.;>, .... o, ,I-' III ~\ /-,.......... \ : .1?O . .D ........ } ................. + ................. r ................ ) .................. , ................. ) ................... } .. .\ ........... I ................. } ............ L ... [ ............ :.-:-::e:;.;,.;.;.;.:;;.;;: ... );.:;:;,.".,::;.,:,: ... f .................. L .. "i?n.c .............. 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J~hLCI:lP...NNE _ .......... . : ;: , / .. :,~ .r..:~~"':" ,~:;:" ,,-;:, :..~ v ',":.:.-,:., WI,~ " '" : : ;: : / n, " .. -.;;n; ... -v' 'v • v ~:': vv "n,' :::. " \" / \ : ; OIL o",~n ""A~'AO" ; I -RA55-WFtH 'I" N"'i-lC,"cS "',--+ '===-=--. : .................. I';.,IO' .. TOP .. dF .. QA~"~ _"i?'" n r-I vr ,;... un,,,,,. / ,,""VL. v, "n/"l'~'~c. ... / /"I,',Ll " "LVlr -PEI'(-UC.lf ,!HI;:' ~nc.c.I' 'I ............... r............ U.......... l"i?n n : .,: . . :. : , ' . : : . : : : S' r H, 1 = 10 V: 1 =~ -, ; : .............. ~.? l!-!.~ ........ ~~,:!-!.~ ....... ~~? I'!":' ....... ~lJ.!'!lJ ......... I,? :lJ.I! ......... I,:::,:.:-:,:-: .......... ?:.l:'Y .............. I-:-.............. ~: ~Y, ......... I.:-:.:. .............. ~.?,llJ.lJ ........ ~.lJ.:'!'! ....... ~,? I'!":' ....... ~.lJ.:":''':' ................................ : ........ , .... ~.? l!-!.lJ ........ :?lJ.: uu L~, i UU, LU}cJU 1 ~ ~ v I v~v v ~. ~U. ~. flU I' ;:, IV I / I J:, 'II I /..., I II I ,: • \ I, . \ .. • \ , .. '1-, \. :~ ,~ , .i ":' ;~ .. " .................. c ................... : ...................................... : ............... : ... c.; ............... 1-:-.................. ,-.. ; ........... :.:-:.:.:'7 .............. :-:.i.~.~ ........ :':'.:-:.::-:.:-: ........ ~:-: .• ::'.:-: ........ :?.lJ.:'!":'. '" .' " STREAMBED GRAVEL FOR ALCOVE APPLICATION: . ,'. - \ , .-, \ US STD. SIEVE SIZE PERCENT PASSING BY WEIGHT OHWM NOTE: TYPICAL SECTION HABITAT MITIGATION ALCOVE GRADING STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 OLSON, P. AND E. STOCKDALE. 2010. DETERMINING THE ORDINARY HIGH WATER MARK ON STREAMS IN WASHINGTON STATE. SECOND REVIEW DRAFT. WASHINGTON STATE DEPARTMENT OF ECOLOGY, SHORELANDS 7 ENVIRONMENTAL ASSISTANCE PROGRAM, LACEY, WA. ECOLOGY PUBLICATION #08-08-001. ; •. SCALE: H: 1"=10'. V: 1"=10' FIELD STAKED BY KING COUNTY ENGINEER III, ENVIRONMENTAL UNIT MARCH 2011. :=~~~0~~5~6~O~1~~0~1i=$=~[p~3~-~· '~"~~U~L.'l'~ ... l\~~"~~1~t=-=j-l APPROVED: DON ALTHAUSER. P.E. 7/2011 FIELD BOOK: '''. r . ~ .1,........... I .... I SURVEYED: KING COUNTY 01 201 (1 -. n " \..:.1-_ " PROJECT nOlle:: ~..... ~ ,~~.. KCFCZD No. --------1 "I--+---I',-V.=..',--" v_-=.....,. .... 1""!.=_~r-F--\.IIo,j.ot:'....!.4\ __ --I MANAGER: ~~~l,;::!:!!!:MIIII~!-_____ -I-!J.I' J I~ LUl'l~ 'I SURVEY BASE MA~ING COUNTY 02-2010 • _7 . ~, _ PROJECT No. _~9::..:A.:.:12::.::0~5 __ --1 ~~~~,,~,~/~~~~~.~~~-'~~~=jt=jc===J TREVOR CRAY, PLS 02-20101--1"1'\1 ... ll~' .\-\ DESIGNED: CHECKED: DALE NEL <:()I\I 02-201 0 {" ~-\ \ r;;;-~~ ". -,,-' NUM. ~D.:....~~E~N=EL=S~ON~ _______ ~7~7,/~20~11 SURVEY No. _______ ~ DESIGN ENlERED: ~M~ . ....:R..::..A::::.D::::EL==LA'-'--______ ~7!..1.', /~20.!..11!....1 ~~I~T5~A~~~ __ --.:.4 __ ~ BY DATE 6 INCHES 4 INCHES 1 1/2 INCH 3/4 INCH 3/8 INCH NO.4 NO. 40 NO. 200 70-80 55-70 45-60 30-50 25-35 16-30 15-20 COBBLES MAY BE INCLUQED IN THE GRAVEL AND ALL COBBLES THAN 4 INCHES IN DIAMEJ'ER SH.A.LL BE EXCLUDED FROM THE GRADATION TEST. GRAVEL AND COBBLES SHALL BE ROUNDED. LARGER 0-5 ... , , ,: ; ., , tQ King County,' t Department of Natural Resources and ParkS' Water and Land Resources Division '\ Stormwater Services Section ' Capital Services Unit ' , Christie. True, Director \ , , , 1 ~' I " j \ ~: i , . CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MAY CREEK DRAINAGE IMPROVEMENT CROss sEcnoNs AND HABITAT t.mQATION DErAILS ------- ... i ....... ; .... ~.:.~~t.;~ .. (~!\~~~~ . .P..~~.~~~.~. Q~~.~~'~ ... ~ ~.~~~ ... ~.~. :~ ................. ~ ................. ~ ........ i.. : ....... i ......... ~ ................. ; ................... : ................. ~: ....... + .~.~~.~: ... ~ ........ 1 ........ ~.20 .. O'O .... . : : . . . ~ Ii-. 'l.J~IN L9G . I : : : : : : : : :: : : : : , : : ~ 'I : / N JyP'f'A' ( ~ '" / ~ I : • . .. •• .' .," "1'-N I KI:. .: ... , ................... ~ .................. , .................. , .................. ~ .................................... , .................. , .................. , .................. ' .................. ~:.. ,~. ,:,,", ............... , .................. , ................. , .................. ' ................... ~ ................. . ~ : : : :, lUN;:'~ :: :' ~ 40;00 30;00 20~00 1 O,~OO Cf. 1 0~]o6 20pCY 30;00 40;00 ~O;OO 60;00 70;00 80;00 90;00 100,.00 11 0;00 TYPICAL SECTION -HABITAT MITIGATION LOG PLACEMENT HABITAT FLOODPLAIN AREA AND ALCOVE STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 SCALE: H: 1"=10', V: 1"=10' _ ... '. 1'-\" , ................................................................... : ......................................................................... /. -... WjllOW .. STAKES .. ~ .............. ! .............................. . __ -+-___ -+-_____ ~-l (/ ;\' , , ~: ------l-----+--: ___ -fi _ __\_ \\\---\_. /J: ~~\_ Til \~t I), ''0\\r7.L-'L __ : '\'11 I ~ / 1\ '-I ~~/~"- ~ Y ~"17 Y ~HI/'-/---- .......................... ·r··· .. ·· .. ··· ......................... + ..... .............. .... ..... ..... ..... ..... .......... .. ................. ·····1····· ...... . ............... ··· .. ··· .. T .. ··· ................................ ~... . ............ .31.5 • .0. i:"ROSION CONTROL C~OTH ~_ AJ<x '.XXxx~ r..;v< xxx / / / / / /. / / . / / ~ ............... .& " '<, ''''' '< " Y; " Y: " " Y: "'« " ~!"{, ""S "."{<"-. k' " V "-. '< EROSION SEDIMENT____ : __ ~~~';~'~~>;%~bL~~~~9~:A:"~ ~.~\'y,\'0~ ~~y>::~ ____ +_. __ =--===-"~=_!:~---/'~'i'>-~"'''y:.~_;S~~X7l'·A-;:....;PPL:'-EROSIO.N_ CLdTH. TO ~_R?T~~ ~~~~~S</ ---1----: ///Y /// / f5 crrE){POSEIJTS"O[[A[oNG,/ "/V //y //y //y //y /}:: - ---MA.r¥-G-R-EFHf : ~¥I" '<,(" '< /. SLOPE LANDWARD OF TOP, , 0</~l'</.h'\:''(''Y ,(\''':{(,:'''·'''U"" . _, ~ T ',' r!, --"'j" 77' ",~Y/'0~ "'''"'/ ;'» APPLY TO ALL ?rATIONS ») /r.>~J>,WEE[f-FABRfC rROPEX ,y / i::'-;(/ iY. : / / :;y :0.:\::.00-TO STA-i'L-I::.OO 5:Qu:.~~'~'(/~1 0100 ~'tr. 00 20,00 . 25 00 30100 I, I : I I TYPICAL SECTION FABRIO APPLICATION SCALE: H: 1" = 2.5'; V: 1" =2.5' : .... ~I-----l----~,.f!-~,. .... ''"'=-\I~ .. \ '~~-I-_~ APPROVED: ....!::D~O!::!..N ~AL!:.!.m l.!:!!-1A~llll~C::J:"~.......!:.:P ,E:.:E. __ --l~7'.L' J /~201!...11 FIELD BOOK 09056 01-201ur • • ,""""& .J\-I ~' =~~~~~~m=±~~~~~~~r:G~~=j PROJECT KCFCZD No. -------1 tQ King County KING COUNTY 01 2010 _. '/ -., '7 ,~~. SURVEYED: / I v _ I -\. ~, MANAGER: ...=Dc::,OU=-.;G::...=CH=IN-'--____ --If-".i...· J I=_:. LU '-,-1. SURVEY BASE ~ING COUNTY 02 2010 _ r--...; -'" _ PROJECT No, _--,-,-9Ac..;.1 ::..;20:..::.5 __ -1 _I ""':\00'\' -'7 'n~. TREVOR CRAY, PLS 02-2010 t=:e ""'1.l~! Ile)~~~~~~A~ ... ~t=t=j DESIGNED: _D.....;AL..;..E_N...;.E.;:.;.LS_ON _____ -+-'.!...'I J=_:..;. LU '..:-1. SURVEY No. -------1 DALE SON 0?--?010 t ,,'-,_7~-MAINTENANCE I--I-----. ..t-:-,~~---I----l----l DESIGN ENlERED: ""M:.:... • ..:..;RAc::;D=EL=LA'-'--___ -+-7'-'-' 1/-=-::..;201...:..1_. DIVISION No, ___ 4~~--I NUI.4. BY DAlE CHECKED: ! Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director -. . , . ",,- \ -! •• \ \;!-, \ j , \ j , l , ~ , \ , 1;. . , ~ :: ~ , ~ ",' CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MAy CREEK DRAINAGE IMPROVEMENT SHEET 16 CROSS SECTIONS AND HABITAT MrTIQATION DETALS FIELD BOOK: SURVEYED: 3/4" NON-GALVINIZED CHAIN FINISH GRADE PROVIDE MANTA RAY MR-1 ANCHOR PER LOG WITH 5/16" DIA. STAINLESS STEEL CABLE FROM ANCHOR TO CHAIN ATTACHMENT EYE AT EXISTING GRADE. CONNECT WITH LOK-A-LOY 10 CONNECTING LINK OR EQUIVALENT. LOGS WITH 5/8" DIAM. REBAR CUT FLUSH TO LOG '---15' MIN. DEPTH BELOW FINISH GRADE. ACQUIRE 6' EMBEDMENT IN CONSOLIDATED SOIL LAYER. TEST HOLDING CAPACITY PER MANTA RAY VENDOR SPECIFICATIONS. SECTION # of LOGS 7 5 4 16 total 30 30 60 total 2 78 total LOG TABLE SIZE LOG ROOTWAD OR LOG LENGTH WITHOUT (W/OUT) ALCOVE AREAS 18"-24" dbh 30' rootwads 16"-18" dbh 30' rootwads 12"-18" dbh 30' rootwads FLOODPLAIN ROUGHNESS 12"-14"dbh 30' w/out 12"-18"dbh 30' rootwads 27'min snags LOG WITH ANCHORS 13 '--" l"iiiiiiiiiiiiii~~~_iiiiil + 5' to grade SNAG DETAIL NTS 09056 01-2010 KING COUNTY 01-2010 NTS SNAG WI AT LEAST -4 LIMBS ATIACHED OR REATIACHED FILL TOP 12" INCHES WITH SAME MATERIAL AS ADJACENT AREA INFILL WITH CRUSHED SURFACING BASE COURSE. TAMP TO COMPACT 13 '--" A~ch sfgn to post with two 5/16 galvanized lag bolts with washers 4 -P ..... printed 1- plastic sfgn • 8' -4x4 cedar o~ pr_ure-treated WETLAND PROTECTION SIGNAGE NTS SNAG NOTES: 1. WILDLIFE SNAG TO BE PLACED AS DIRECTED BY ENGINEER OR ECOLOGIST. 2. ALL SNAGS SHALL BE WESTERN RED CEDAR OR DOUGLAS-FIR TREES WITH A SUBSTANTIAL PORTION OF THEIR LIMBS LEFT INTACT. DO NOT TRIM TOPS, AS DAMAGED OR BROKEN TOPS ARE PREFERRED. PROVIDE LOGS WITH NUMEROUS UNTRIMMED LIMBS, WITH A MINIMUM OF 6 LIMBS. LOGS USED FOR SNAGS MAY BE PARTIALLY HOLLOW AND CONTAIN CAVITIES AS LONG AS THEY ARE GENERALLY SOUND AND INTACT. 3. SNAGS SHALL BE A MINIMUM OF 10 INCHES IN DIAMETER AT BREAST HEIGHT (DBH) WHEN INSTALLED AND SHALL BE PLACED INTO THE GROUND TO A DEPTH EQUAL TO 1/3 OF TREE HEIGHT BELOW GROUND. 4. SNAGS WITH SUBSTANTIAL ROOT MASSES ATTACHED MAY BE PLACED TO THE DEPTH INDICATED AND BACKFILLED WITH QUARRY SPALLS AND SOIL ONLY UPON APPROVAL BY THE ENGINEER. APPROVED: DON ALTHAUSER, P.E. 7 2011 PROJECT KCFCZD No. MANAGER: DOUG CHIN 7 2011 9A1205 SURVEY BASE M~ING COUNTY 02-2010 PROJECT No. TREVOR CRAY, PLS 02-2010 DESIGNED: DALE NELSON 7/2011 SURVEY No. DALE NELSON 02-2010 -CHECKED: MAINTENANCE -DESIGN ENTERED: M. RADELLA 7 2011 DIVISION No. 4 NUM. R SION BY DATE MITIGATION PLAN NOTES (A) CONSTRUCTION NOTES 1. TREES TO BE PRESERVED WILL BE FLAGGED IN THE FIELD BY THE ECOLOGIST. 2. INSTALL SILT FENCES WHERE DESIGNATED ON THE PLANS. INSTALL ANY OTHER EROSION AND SEDIMENT CONTROL MEASURES AS REQUESTED BY THE ENGINEER 3. ELEVATION SHOWN ARE FINAL GRADE, 4 TO 6 INCHES OF OVER-X WILL OCCUR AND BE BACKFILLED FILLED WITH STREAMBED GRAVELS OR COMPOST WHERE INDICATED ON PLANS. 4. EXCAVATION OF ALCOVES ADJACENT TO THE STREAM CHANNEL SHALL TAKE PLACE ONLY DURING THE FISH WINDOWS AS DESIGNATED IN THE PERMITS. WHEN EXCAVATING ADJACENT THE STREAM CHANNEL AN EARTH PLUG SHALL BE LEFT BETWEEN THE EXISTING STREAM CHANNEL AND THE EXCAVATION AREA. PRIOR TO REMOVING THE EARTH PLUG AND CONNECTING THE EXCAVATED CHANNEL, A TURBIDITY CURTAIN SHALL BE INSTALLED AS SHOWN IN THE DETAILS TO PROTECT THE STREAM FROM SEDIMENT AND TURBIDITY DURING CONNECTION. 5. IF ANY GROUNDWATER IS ENCOUNTERED DURING EXCAVATION, DEWATER BY PUMPING AND BROADCASTING TURBID WATER THROUGH SILT FENCE AND DISSIPATED OVER VEGETATED STRIP IN UPLAND AREAS OF THE SITE. IF GROUND BECOMES SATURATED A BAKER TANK SHALL BE USED. 6. ELEVATIONS ASSOCIATED WITH CONTOURING ALCOVE AND FLOODPLAIN AREAS IS TO BE DIRECTED BY ECOLOGIST IN THE FIELD. 7. PARTIALLY BURY AND PLACE LOGS IN THE EXCAVATED ALCOVE, LOG PLACEMENT SHOWN IN THE PLANS ARE SCHEMATIC; ACTUAL PLACEMENT AND ARRANGEMENT TO BE DETERMINED BY THE ECOLOGIST IN THE FIELD. ANCHOR AS SHOWN IN PLAN DETAILS. 8. PLACE 6 INCHES OF STREAMBED GRAVELS WITHIN THE ALCOVE AREA. 9. PLANT EMERGENTS AND SHRUBS IN ALCOVES ACCORDING TO PLANTING PLAN. 10. REMOVE TEMPORARY STABILIZED CONSTRUCTION ENTRANCES AND REMOVE HIGH-VISIBILITY FENCES, AND ANY OTHER EROSION CONTROL MEASURES STILL INSTALLED AT THE SITE. 11. CONTRACTOR SHALL PROVIDE STREAM ISOLATION / TURBIDITY CURTAIN PER WASHINGTON DEPARTMENT OF ECOLOGY STANDARDS. (A) PLANTING NOTES 1. MITIGATION PLANTING PLANS REPRESENT A CONCEF;:TUAL PLANT LAYOUT. ALL MITIGATION PLANTING PREPARATION WILL BE DIRECTED IN THE FIELD BY THE ECOLOGIST. 2. PLANTING SHALL TAKE PLACE DURING THE DORMAI\!T \SEASON (NOVEMBER 1 ST THROUGH FEBRUARY 28TH). PLANTING MAY BE ALLOWED AT OTHER TIMES AFTER REVIEW AND WRITTEN APPROVAL BY THE ECOLOGIST. '" ';'" 3. APPLY JUTE EROSION CONTROL FABRIC. AS DIRECTED 'BY ECOLOGIST WITHIN THE FLOODPLAIN EXCAVATION AREAS AND ALL PLANTING AREAS WHERE REED CANARY GRASS HAS sEEN COMPLETELY REMOVED. 4. IN ALL PLANTING AREAS WHERE REED CANARY GRASS IS PRESENT, FIRST MOW THE GRASS. COVER MOWED REED CANARY GRASS WITH PROPEX 8418 (OR A SIMILAR BARRIEftMATERIAL AS APPROVED BY THE ECOLOGIST) AS NEEDED AND DIRECTED BY ECOLOGIST. AND STAKE IN PLACE USING' LIVE STAKES. 5. PLANT STAKES AND TREES AS DIRECTED BY THE ECOLOGIST THROUGH THE PROPEX (OR EQUIVALENT). 6. ALL PLANTS SHALL BE NURSERY GROWN A MINIMUM OF ONE YEAR. PLANT MATERIAL IS TO BE SUPPLIED BY COMMERCIAL . . . NURSERIES THAT SPECIALIZE IN PLANTS NATIVE TO TI:lE PACIFIC NORTHWEST. PLANT MATERIAL SUBSTITUTIONS ARE SUBJECT TO APPROVAL BY THE ECOLOGIST. 7. NO TACKIFIER, HERBICIDE, OR FERTILIZER SHALL BE USED IN THE PLANTING AREAS. I (A) GENERAL NOTES \ \ 1. TO PREVENT REESTABLISHMENT OF INVASIVE~EGETATION, THE TOP 24 INCHES OF EXCAVATED SOIL IS AS FILL ANYWHERE ON THE PROJECT SITE. .1 NOT TO BE REUSED (D) KING COUNTY WETLAND/STREAM PROTECTION' SIGN I NdTAU..ATION NOTES: • • THE WETLAND/STREAM PROTECTION SIGNS SHALL BE POSTtD ON THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT. ONE SIGN SHALL BE POSTED FOR EVERY 150-FEET Of THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT IN A PROMINENT LOCATION.. SIGNS MAY ALSO BE ATTACHED TO NEW AND EXISTING FARM FENCES. "\ • SIGNS ARE AVAILABLE FOR $9.22 FROM: \ KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES 900 OAKS DALE AVENUE SOUTHWEST RENTON, WA 98055-1219, CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) SHEET MAY CREEK DRAINAGE IMPROVEMENT W King County 17 Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director HABITAT MrTlQATION ENHANCEMENT INSTAl I ATION DETALS /IK) NOlES o o ... 4, \ o : "5'7 ...... I May Creek Riparian Buffer Planting, west & east of 148th Ave SE CPLANT~N%~ 0 c o~ nOoo n Latin Name Common Name Size/Specifications Trees Alnus rubra Red alder 6-8' Height Plant 9' O.C. Picea sitchensis Sitka spruce 5 gal., 5-6' Height Full Dense Foliage Plant 9' O.C. Populus balsamifera spp. Black cottonwood 6' stake, top on, I" diameter trichocarpa Plant 9' O.C. Thuja pliclata Western red cedar 5 ga!., 5-6' Height Full Dense Foliage Plant 9' O.C. ShrubslWillows -, -. Cornus sericea Red-oiser dogwood Bare root,Minimum 36" Long Plant 3' O.C. Salix lasiandra Pacific willow Live Stakes, 6' Long, 112-1" Diameter Plant 3' O.C. Salix sitchensis Sitka willow Live Stakes, 6' Long, 112-1" Diameter Plant 3' O.C. May Creek Wetland Enhancement Planting Plan -west of 148th Ave SE * Total Area: Approximately 130,680 square feet (3 acres) Latin Name Populus trichocarpa Cornus sericea Salix lasiandra Salix sitchensis *PLANTS NOTES ON Common Name Black Cottonwood Red-oiser dogwood Pacific willow Sitka willow Size/Specifications 6' stake, top on, 1" diameter Plant 9' O.C Bare root, Minimum 12" Long Plant 3' O.C. Live Stakes, 6' Long, 1/2-1" Diameter Plant 3' O.C Live Stakes, 6' Long, 112-1" Diameter Plant 3' O.C. FIELD BOOK: 09056 01-201 o~==+=====;::d~C~:;~t==~:==j SURVEYED: KING COUNTY 01-201 SU~~E ~1~N~G_C~O~U~N~TY~~0~2_2~0~1~ __ -r __ ~~~~~~~~-=~~-+ ____ ~ TREVOR CRAY, PLS Quantity 7,000 300 8,000 3,000 APPROVED: PROJECT MANAGER: DESIGNED: Quantity 260 260 260 260 2755 2855 2855 DO DALE NELSON DESIGN ENTERED: M. RADELLA NUM. BY DATE \ \ \ \ \ ~~ EAST OF 148TH AVE SE BUFFER MITIGATION PLANTING SCALE: H: 1" = 60' May Creek Alcoves Planting Plan - west of 148th Avenue SE I Latin Name Common Name Size/Specifications Emergents -for alcoves near stream Scirpus acutus Hardstem bulbrush Plug (Plant 12" O.C.) Eleocharis palustris Common spike-rush Plug (Plant 12" O.C.) Carex stipata Sawbeak sedge Plug (Plant 12" O.C.) ShrubslWillows Cornus sericea Red-oiser dogwood Bare root, mi. 12" long Plant 3' O.c. Physocarpus capitatus Pacific ninebark Bare root, mi. 12" long Plant 3' O.C. Rosa pisocarpa Pea fruited rose Bare root, mi. 12" long Plant 3' O.c. Rubus spectabi/is Salmonberry Bare root, mi. 12 II long Plant3' O.c. . Live Stakes Salix sitchensis Sitka willow Minimum 6' Long 3/4-1" Diameter Plant 3' O.c. Live stakes SaIL< lasiandra Pacific willow Minimum 6' long Minimum 3/411 -1" diameter Plant 3' O.C. Live pole cutting Populus trichocarpa Black Cottonwood Minimum 6' long Minimum 3/4"-1" diameter Plant 3' O.C. EROSION CONTROL SEED MIXES WETLAND AREA 6770 Dwarf Tall Fescue Quantity 500 500 500 175 150 250 150 300 300 250 1070 Seaside Colonial Bentgrass 1070 Meadow Foxtail 570 Western Mannagrass 670 Red Fescue 270 Clover UPLAND AREA 2070 Dwarf Tall Fescue 3070 Dwarf Perennial Ryegrass "Barclay" 3070 Red Fescue 1070 White Clover 1070 Colonial Bentgrass KCFCZD No. PROJECT No. 9A1205 1 SURVEY No. 1 MAINTENANCE DIVISION No. 4 , I I I I I WEST OF 148TH AVE SE MITIGATION PLANTING SCALE: H: 1" = 60' , , CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTI LIlY LOCATIONS ARE APF'RO'X. MAY CREEK DRAINAGE IMPROVEMENT SHEET 18 ti King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director OF 18 SHEETS 2006-16 v . - BONWELL 2914 LYONS AVE NE PLANT 15' BUFFER lAllTU WETLAND VEGETATION ,..."""" LANTING TABLE SHEET / / ~'\,. _ >iy!',.. A~)b •. • 'ill ·'V··0t _ & -- v,<',<-, ---~-? • •• .~+ 9h • / NOTE: ---- LOG PLACEMENT TO BE DIRECTED IN THE FIELD BY THE ENGINEER/ECOLOGIST. SEE LOG TABLE AND MITIGATION CONSTRUyl'lUWNOTES SHEET 17. LOG LOCATIONS SHOWN ON THIS SHEET ARVCONCEPTUAL ONLY. -~/ ~ -/ ,./'---~--.-'-, /" ( -"./ I '-• ./ \ '--.---// ) \ INSTALL 3-STRAND BARBED-WIRE)" FENCE WITH T-POSTS. TO BE l ·_-····_-··--_······.';314---.. _.-1 WITH FIELD ADJU?T~~:AS[m~~GIEll-:r , ... ~ ... • + • / / FIELD BOOK: SURVEYED: 09056 01-201 KING COUNTY 01-201 SURVEY E!l\SE ~ING COUNTY 02-201 TREVOR CRAY, PLS NUM. •• ,. +. , til til til ~£:"rfArv til IiI,P $U til 4Ifl' tr:cry 4Ifl' •• •• INSTALL 3-STRAND BARBED-WIRE FENCE WITH T -POSTS. TO BE FIELD ADJUSTED AS DIRECTED TO ATCH MITIGATION AREA. ~~-I-_---I APPROVED: ...!D~O~N~~~~.!:P::.!:.E,,-. ___ ~~ll~1 MANAGER: ~~~~------l-!i~.!J....i PROJECT No. _--=9.:.:A.:.:12:.::0.:.5 __ -i DESIGNED: --=D::...A:.:;:LE:::.-;.:N;;;;.:;EL::.:;S,;;;.ON:.:...--_____ t--:-!-=.::..:..l:.., SURVEY No. ------.----1 DATE ~~~~ ~~ -.. -------~~~ King County Department of Natural Resources and Parks Water and Land Resources Division Siormwater Services Section Capital Services Unit Christie True, Director I I I I I 2: ~I ..... / I! I I i I i i , , - CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MERIDIAN W.S.L.G.N.Z. NAD 83/91 NAVD 88 . / SHEET 1 AUG -5 1011 REH.AelUrA"OON PlANS WE11.AND MIllQA'fI()N Sf A 0+00 -Sf A 7+00 SHEETS : ; ; I : I : . I: ; :; I: : ,: ! :. ...n~.II="r.T: ~,~,~ " ,,: •. ., ~ROI;A : . : . ..:. ~ . .... IR~I"'; -Fl-" ,..-,' MAT'::: (}I : Dih.'~"~ (,IIMIICV ....................................... ( .................................... ~ ...................................... , ......................................................... , ................... , ........ ';'TII 1'J..l.nn T( 1~ nA'~. ""'''1:'';',':.) ................................... : ................... __ ............. ;~?C; C .............. Tn .. REi ... 'I"'r .............. "' ... \\ ....... ~ .............................. ,,, ('j\I\IAo;t ~C1\<:;S .. J" r.I-'A.'......., .. ~.... ... .:;:~,,~~ ~',"" 1~:.2.5' .7i?!') n : : 1:"1 •• A''''''''. n" ; U IVII'\" ~. " "" '" r"'\ ''' .. : .......... , •. .. ... ;,:.::. ...... uF .. ·T{)P .. 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'" .............. :-.'-, ................. ::::::.::_ ......... : :::', ::-.::-........ .-•• :.: .:.::_ ........ :':::-' 't.::::: ........ ::_. -::.!.--!.lJ.. STREAMBED GRAVEL FOR ALCOVE ,"~ APPLICATION: US STD. SIEVE SIZE PERCENT PASSING BY WEIGHT TYPICAL SECTION HABITAT MITIGATION ALCOVE GRADING STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 SCALE: H: 1"=10', V: 1"=10' OHWM NOTE: OLSON. P. AND E. STOCKDALE. 2010. DETERMINING THE ORDINARY HIGH WATER MARK ON STREAMS IN WASHINGTON STATE. SECOND REVIEW DRAFT. WASHINGTON STATE DEPARTMENT OF ECOLOGY, SHORELANDS 7 ENVIRONMENTAL ASSISTANCE PROGRAM, LACEY, WA. ECOLOGY PUBLICATION #08-08-001. FIELD STAKED BY KING COUNTY ENGINEER III, ENVIRONMENTAL UNIT MARCH 2011. _\II>.. 09056 01-201 1---l------_-t""'~·'Unf!!s.. ... ,"l"'d--I----I APPROVED: DON AI TIJAI '<:"'0;. P.E. 7/2011 FIELD BOOK: ---::::--::-=~~-:-:--=3--+---::::-:l...:-e>-l-· ,_+ 1~'t;1P"""~ L..A~'.~~-1-.,..4,"If---l NUM. SURVEYED: ---:-~K~IN~G~C~OU~N~IY~~0~1 ~2~0:1 nJ==t== ..... Jj,.Q=·t::.'=: ... ~'~ -~i=,-~'~~}!t="I~=J PROJECT nnllr.~' ... , 7' '~~11 KCFCZD No. _. A "-6 ,.,.. r "-.6 MANAGER: ~~~"~nllll~L-_____ -+-!...' I@:! L.U::!..!...I SURVEY BASE ~ING COUNIY 02 20H _ ~~-"'ll ~ PROJECT No. _---=9.:...:,Al..:..:2.:...:.0.::.5 __ -I ~~~~~~~~~:~~~-~~~~~=t=jt===:j ,,~~ TREVOR CRAY, PLS 02-20101-!I" '\' ~:.n .44 DESIGNED: ....:D::..A:=:LE::........:N;;:;EL=S.::.ON:..:..-_____ -t--=-J7/~ L.u..:...11:-. SURVEY No. ---------1 CHECKED: _~_!,!.illDAl-&.1EN~·,<:~{)i\i\lI"~""~)()'1.1)·1l=()=1'~="-=·==:~~t~\~[.Jj~-=\=it±==1 -DESIGN ENTERED'. M. RADELLA 7/2011 MAINTENANCE 4 .~ BY DATE ....:.::..:.....:..::...=~ ____ +:...L.!~~I DIVISION No, ---....:.----1 6 INCHES 4 INCHES 1 1/2 INCH 3/4 INCH 3/8 INCH NO.4 NO. 40 NO. 200 70-80 55-70 45-60 30-50 25-35 16-30 15-20 COBBLES MAY BE INCLUDED IN THE GRAVEL AND ALL COBBLES THAN 4 INCHES IN DIAMETER SHALL BE EXCLUDED FROM THE GRADATION TEST. GRAVEL AND COBBLES SHALL BE ROUNDED. LARGER 0-5 tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwaler Services Section Capital Services Unit Christie True, Director CAll 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) SHEET 2 MAY CREEK DRAINAGE IMPROVEMENT TYPICAL SECTION -HABITAT MITIGATION LOG PLACEMENT HABITAT FLOODPLAIN AREA AND ALCOVE STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 SCALE: H: 1"=10', V: 1"=10' _110.. 7/2011 09056 01_2010t==t===~::;;-~~~~ .. \ .... ~=t==1APPROVED: DON ALTHAUSER, P.E. FIELD BOOK; ---::-:-:::-:==t-::-:-:=i--+-~=::;;;;-;j, r~;1-\-1.J~,,,,'1'C.~~ ... ..J£].11'!..: ·-=-_--;;:dk,,.·1':~"(II--I PROJECT KCFCZD No. _____ ---1 SURVEYED; KING COUNTY 01 201 ° ~ Ii v _ T 'T n-MANAGER: -=D~O.::::.:UG::....::::;CH:.!!IN'-!.-. _____ ~71~'2::.:::0:.:..11!.-1 SURVEY BASE ~ING COUNTY 02 2010 _~~".'.:~ ~ PROJECT No. __ 9A_12_0:..;;,5 __ -I _I' ,£.- TREVOR CRAY, PLS 02 201 ° 'K ~ DESIGNED: ..,;:D;,;,.:AL:;::Ec...;N...::E:::;LS:.;:O,;,.;,N _____ +-'-7 /£...:,2::.::0..:...11:-1 SURVEY No. ______ -1 CHECKED: DALE NELSON 02 20101' \.--nU-T~ I -1,.,."'" DESIGN ENTERED: M. RADELLA 7/2011 MAINTENANCE 4 I-N-UM-.+----REVI-l.!'-.SIO-N-""'='-----+-BY-+-D-ATE--I -=--'-=-"='-'------+.:...<...::.:::..:...:..-IDIVISION No. ----.:..----1 SCALE: H: 1" = 2.5'; V: 1" =2.5' ti King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director CAll 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MAY CREEK DRAINAGE IMPROVEMENT SHEET • 3/4" NON-GALVINIZED CHAIN FINISH GRADE PROVIDE MANTA RAY MR-1 ANCHOR PER LOG WITH 5/16" DIA. STAINLESS STEEL CABLE FROM ANCHOR TO CHAIN ATIACHMENT EYE AT EXISTING GRADE. CONNECT WITH LOK-A-LOY 10 CONNECTING LINK OR EQUIVALENT. PIN LOGS WITH 5/8" DIAM. REBAR CUT FLUSH TO LOG '---15' MIN. DEPTH BELOW FINISH GRADE. ACQUIRE 6' EMBEDMENT IN CONSOLIDATED SOIL LAYER. TEST HOLDING CAPACITY PER MANTA RAY VENDOR SPECiFICATIONS. SECTION ~ (!) LOG WITH ANCHORS NTS SNAG WI AT LEAST 4 LIMBS ATTACHED OR REATTACHED 13 ............., # of LOGS 7 5 4 16 total 30 30 60 total 2 78 total Attach sign to post with two 5/16 gal".arriad lag bolts with washers LOG TABLE LOG SIZE LOG LENGTH ALCOVE AREAS 18"-24" dbh 30' 16"-18" dbh 30' 12"-18" dbh 30' FLOODPLAIN ROUGHNESS 12" -14"dbh 30' 12" -18"dbh 30' 27'min ROOTWAD OR WITHOUT (W/OUT) rootwads rootwads rootwads w/out rootwads snags Pre-printed pl.astic tdgn "' , W :I: :x: Z :il • 3' -~4 cedar or preS5lllfe-treated ~ ~ SNAG DETAIL NTS FILL TOP 12" INCHES WITH SAME MATERIAL PS ADJACENT AREA INFILL WITH CRUSHED SURFACING BPSE COURSE. TAMP TO COMPACT 13 ............., WETLAND PROTECTION SIGNAGE NTS SNAG NOTES: 1. WILDLIFE SNAG TO BE PLACED AS DIRECTED BY ENGINEER OR ECOLOGIST. 2. ALL SNAGS SHALL BE WESTERN RED CEDAR OR DOUGLAS-FIR TREES WITH A SUBSTANTIAL PORTION OF THEIR LIMBS LEFT INTACT. DO NOT TRIM TOPS, AS DAMAGED OR BROKEN TOPS ARE PREFERRED. PROVIDE LOGS WITH NUMEROUS UNTRIMMED LIMBS, WITH A MINIMUM OF 6 LIMBS. LOGS USED FOR SNAGS MAY BE PARTIALLY HOLLOW AND CONTAIN CAVITIES AS LONG AS THEY ARE GENERALLY SOUND AND INTACT. 3. SNAGS SHALL BE A MINIMUM OF 10 INCHES IN DIAMETER AT BREAST HEIGHT (DBH) WHEN INSTALLED AND SHALL BE PLACED INTO THE GROUND TO A DEPTH EQUAL TO 1/3 OF TREE HEIGHT BELOW GROUND. 4. SNAGS WITH SUBSTANTIAL ROOT MASSES ATTACHED MAY BE PLACED TO THE DEPTH INDICATED AND BACKFILLED WITH QUARRY SPALLS AND SOIL ONLY UPON APPROVAL BY THE ENGINEER. , > 9A1205 4 MITIGATION PLAN NOTES (A) CONSTRUCTION NOTES 1. TREES TO BE PRESERVED WILL BE FLAGGED IN THE FIELD BY THE ECOLOGIST. 2. INSTALL SILT FENCES WHERE DESIGNATED ON THE PLANS. INSTALL ANY OTHER EROSION AND SEDIMENT CONTROL MEASURES AS REQUESTED BY THE ENGINEER 3. ELEVATION SHOWN ARE FINAL GRADE, 4 TO 6 INCHES OF OVER-X WILL OCCUR AND BE BACKFILLED FILLED WITH STREAMBED GRAVELS OR COMPOST WHERE INDICATED ON PLANS. 4. EXCAVATION OF ALCOVES ADJACENT TO THE STREAM CHANNEL SHALL TAKE PLACE ONLY DURING THE FISH WINDOWS AS DESIGNATED IN THE PERMITS. WHEN EXCAVATING ADJACENT THE STREAM CHANNEL AN EARTH PLUG SHALL BE LEFT BETWEEN THE EXISTING STREAM CHANNEL AND THE EXCAVATION AREA. PRIOR TO REMOVING THE EARTH PLUG AND CONNECTING THE EXCAVATED CHANNEL, A TURBIDITY CURTAIN SHALL BE INSTALLED AS SHOWN IN THE DETAILS TO PROTECT THE STREAM FROM SEDIMENT AND TURBIDITY DURING CONNECTION. S. IF ANY GROUNDWATER IS ENCOUNTERED DURING EXCAVATION, DEWATER BY PUMPING AND BROADCASTING TURBID WATER THROUGH SILT FENCE AND DISSIPATED OVER VEGETATED STRIP IN UPLAND AREAS OF THE SITE. IF GROUND BECOMES SATURATED A BAKER TANK SHALL BE USED. 6. ELEVATIONS ASSOCIATED WITH CONTOURING ALCOVE AND FLOODPLAIN AREAS IS TO BE DIRECTED BY ECOLOGIST IN THE FIELD. 7. PARTIALLY BURY AND PLACE LOGS IN THE EXCAVATED ALCOVE, LOG PLACEMENT SHOWN IN THE PLANS ARE SCHEMATIC; ACTUAL PLACEMENT AND ARRANGEMENT TO BE DETERMINED BY THE ECOLOGIST IN THE FIELD. ANCHOR AS SHOWN IN PLAN DETAILS. 8. PLACE 6 INCHES OF STREAMBED GRAVELS WITHIN THE ALCOVE AREA. 9. PLANT EMERGENTS AND SHRUBS IN ALCOVES ACCORDING TO PLANTING PLAN. 10. REMOVE TEMPORARY STABILIZED CONSTRUCTION ENTRANCES AND REMOVE HIGH-VISIBILITY FENCES, AND ANY OTHER EROSION CONTROL MEASURES STILL INSTALLED AT THE SITE. 11. CONTRACTOR SHALL PROVIDE STREAM ISOLATION / TURBIDITY CURTAIN PER WASHINGTON DEPARTMENT OF ECOLOGY STANDARDS. (A) PLANTING NOTES 1. MITIGATION PLANTING PLANS REPRESENT A CONCEPTUAL PLANT LAYOUT. ALL MITIGATION PLANTING PREPARATION WILL BE DIRECTED IN THE FIELD BY THE ECOLOGIST. 2. PLANTING SHALL TAKE PLACE DURING THE DORMANT SEASON (NOVEMBER 1 ST THROUGH FEBRUARY 28TH). PLANTING MAY BE ALLOWED AT OTHER TIMES AFTER REVIEW AND 'WRITIEN APPROVAL BY THE ECOLOGIST. , 3. APPLY JUTE EROSION CONTROL FABRIC AS DIRECTED BY ECOLOGIST WITHIN THE FLOODPLAIN EXCAVATION AREAS AND ALL PLANTING AREAS WHERE REED CANARY GRASS HAS BEEN COMPLETELY REMOVED. 4. IN ALL PLANTING AREAS WHERE REED CANARY GRASS IS PRESENT, FIRST MOW THE GRASS. COVER MOWED REED CANARY GRASS WITH PROPEX 8418 (OR A SIMILAR BARRIER MATERIAL AS APPROVED BY THE ECOLOGIST) AS NEEDED AND DIRECTED BY ECOLOGIST. AND STAKE IN PLACE USING LIVE STAKES. 5. PLANT STAKES AND TREES AS DIRECTED BY THE ECOLOGIST THROUGH THE PROPEX (OR EQUIVALENT). 6. ALL PLANTS SHALL BE NURSERY GROWN A MINIMUM OF ONE YEAR. PLANT MATERIAL IS TO BE SUPPLIED BY COMMERCIAL NURSERIES THAT SPECIALIZE IN PLANTS NATIVE TO THE PACIFIC NORTHWEST. PLANT MATERIAL SUBSTITUTIONS ARE SUBJECT TO APPROVAL BY THE ECOLOGIST. 7. NO TACKIFIER, HERBICIDE, OR FERTILIZER SHALL BE USED IN THE PLANTING AREAS. (A) GENERAL NOTES 1. TO PREVENT REESTABLISHMENT OF INVASIVE VEGETATION, THE TOP 24 INCHES OF EXCAVATED SOIL IS NOT TO BE REUSED AS FILL ANYWHERE ON THE PROJECT SITE. (D) KING COUNTY WETLAND/STREAM PROTECTION SIGN INSTALLATION NOTES: @ THE WETLAND/STREAM PROTECTION SIGNS SHALL BE POSTED ON THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT. • ONE SIGN SHALL BE POSTED FOR EVERY 150-FEET OF THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT IN A PROMINENT LOCATION. SIGNS MAY ALSO BE ATIACHED TO NEW AND EXISTING FARM FENCES. • SIGNS ARE AVAILABLE FOR $9.22 FROM: KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES 900 OAKS DALE AVENUE SOUTHWEST RENTON, WA 98055-1219 CALL 2 WORKING DAYS BEFORE YOU DtG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) SHEET 4 ti King County MAY CREEK DRAINAGE IMPROVEMENT Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Direc/or o o o o + \ May Creek Riparian Buffer Planting, west 8. east of 148th Ave SE ~,..,..€lv:J:5' CPLANTIN~ 0 c u~ nO r. latin Name Common Name Size/Specifications Trees Alnus rubra Red alder 6-8' Height Plant 9' O.c. Picea sitchensls Sitka spruce 5 gal., 5-6' Height Full Dense Foliage Plant 9' O.C. Populus balsamifera spp. Black cottonwood 6' stake, top on, I" diameter trichocarpa Plant 9' O.c. Thuja pUclala Western red cedar 5 gal., 5-6' Height Full Dense Foliage Plant 9' O.C. SllrubsiWillows Cornus sericea Red-oiser dogwood Bare root, Minimum 36') Long Plant 3' O.C. Salix lasiandra Pacific willow Live Stakes, 6' Long, 112-1" Diameter Plant 3' O.C. Salix sitchensis Sitka willow Livc Stakes, 6' Long, 112-1" Diameter Plant 3' O.c. May Creek Wetland Enhancement Planting Plan -west of 148th Ave SE * Total Area: Approximately 130,680 square feel (3 acres) Latin Name Pupulus trichocarpa Cornus sericea Common Name Black Cottonwood Red-oiser dogwood Salix lasiandra Pacific willow Salix sitchensis Sitka willow *PLANTS WILL BE NOTES ON SHEEr 1 6. 09056 SURVEYED: KING COUNTY SURVEY BASE MA~ING COUNTY 01-201 01-2010 02-2010 Size/Specificalions 61 stake, top on, 1" diameter Plant 9' O.C Bare root, Minimum 12" Long Plant 3' O.C. Live Slakes, 6' Long, 112-1" Diameter Plant 3' O.C. Live Stakes, 6' Long, 112-1" Diameter Plant 3' O.c. TREVOR CRAY, PLS 02-201 0 l=~~~e~~~~~~=:;;;~=tj==j CHECKED: __ ~""-L ~QJij..Q~ill.1Ql--*J...!...:=---'f,-:;;;;:-9~~..lJ'--t---1----I NUM. Quantity 260 260 260 260 2755 2855 2855 Quantity 7,000 300 8,000 3,000 SEE o o + " \ '\ \ EAST OF 148TH AVE SE BUFFER MITIGATION PLANTING SCALE: H: 1" -60' May Creek Alcoves Planting Plan - west of 148th Avenue SE ~ o o + 00 -r-'----"---·--,,-'"-~---~,.--··--·----. '-, --""-~,.~ ......, latin Name Common Name Size/Specifications Quantity Emergents -for alcoves near stream Scirpus acutus Hardstem bulbrush Plug (plant 12" O.c.) 500 Eleocharis palustns Common spike-rush Plug (Plant 12" O.c.) 500 Carex stipata Sawbeak sedge Plug (Plant 12" O.C) 500 - ShrubsIWilIows Cornus sericea Red-oiser dogwood Bare root, mi. 12" long 175 Plant 3' O.C. Physocarpus capitatus Pacific ninebark Bare root, mi. 12" long 150 Plant 3' O.c. Rosa pisocarpa Pea fruited rose Bare root, mi. 12" long 250 Plant 3' O.c. Rubus spectabilis Salmonberry Bare root, mi. 12'1 long 150 Plant 3' O.C. Live Stakes Salix sllchensis Sitka willow Minimum 6' Long 3/4-1" 300 Diameter Plant 3' O.C. Live stakes Salix las-Iandra Pacific willow Minimum 6' long 300 Minimum 3/4 II -l" diameter Plant 3' O.C. Live pole cutting Populus trichocarpa Black Cottonwood Minimum 6' long Minimum 3/4" -I" diameter 250 Plant 3' O.c. EROSION CONTROL SEED MIXES WETLAND AREA 67% Dwarf Tall Fescue 10% Seaside Colonial Bentgrass 10% Meadow Fo)(tail 5% Western Mannagrass 6% Red Fescue 2% Clover UPLAND AREA 20% Dwarf Tall Fescue 30% Dwarf Perennial Ryegrass "Barclay" 30% Red Fescue 10% White Clover 10% Colonial 9A1205 4 \ \ \ --/- \ , WEST OF 148TH AVE SE MITIGATION PLANTING SCALE: H: 1" = 60' CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE API'RCfX. SHEET 5 MAY CREEK DRAINAGE IMPROVEMENT King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Serviclls Unit Christie True, Director OF 5 SHEETS 2006-16 , , VICINITY MAP ~ I ~ \ CO.ALFIELD L~=",,~-.---c::F:: " S E i " , I I -""'~ 1"... MAY I " I --. / "':::::-, I ~ 111 " \, --l . ~P\ \ '" gl \ j r-. PROJECT oLOCATION \ i L._:::::::::.,' ~ r----c IJ!: 0 F BE N T ON :?() \' I ( _ +/ i -I 0- I--. ~-"'\ ?f, KI~G COUNTY~ ~ , \,,1 ~ y'--~~' w r , r-~\}(\l .1 \ I '" " 'r----'-i LJ!l I /w -----' > <C Jl • , ' I ~f--r-, \ / I JI ~/ 1 1 ' .~ ____ I r / I _ ~-,---'Ij I / ) 1- INDEX SHEET DESCRIPTION 1. VICINITY MAP AND INDEX -r-- 2. LEGENDS AND ABBREVIATIONS w r--- (f) w > <C I f- ~ l.D ~ 11 1 LI ~ \ \ 3. SUMMARY AND QUANTITIES (draft version) 0 r- L """ I 0 4. EXISTING CONDITIONS, SHEET KEY, LEGEND, CONSTRUCTION NOTES 5. TEMPORARY EROSION AND SEDIMENT CONTROL PLAN AND LEGEND 6. TEMPORARY EROSION AND SEDIMENT CONTROL PLAN 7. TESC SEDIMENT DISPOSAL AND PUMPING LOCATIONS (draft version) 8. TEMPORARY EROSION AND SEDIMENT CONTROL NOTES AND DETAILS 9. TEMPORARY EROSION AND SEDIMENT DETAILS 10. PLAN AND PROFILE STA. 0+00 TO STA 8+00 11. PLAN AND PROFILE, STA. 8+00 TO STA. 16+20 12. PLAN AND PROFILE, STA. 16+20 TO STA. 24+00 13. PLAN AND PROFILE, STA. 24+00 TO STA 29+00 END OF PROJECT 14. WETLAND AND RIPARIAN MITIGATION PLAN 15. CROSS SECTIONS AND HABITAT MITIGATION DETAILS 16. CROSS SECTIONS AND HABITAT MITIGATION DETAILS 17. FISH HABITAT ENHANCEMENT INSTALLATION DETAILS AND NOTES 18. PLANTING PLAN AY 9A1205 4 King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director Department of Natural Resources and Parks ~,!, \_- -,.~ '. ' , '-, \ , • REEK DRAIN~GE a I 1 , " PRO E 'SE May Valley Rdm + 148th Ave SE \ ! i \ " I \ , "', ¥ ENT tQ King County .1 MAY CREEK DRAINAGE IMPROVEMENT Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director ,~-> ' SHEET 1 OF 18 SHEETS 2006-16 I --.-> ! SEC. 3, , I I I \ \ HOLD PRECONSTRUCTION MEETING. ESTABLISH REQUIRED SIGNAGE AND TRAFFIC PLAN REQUIREMENTS AS APPROVED BY KING COUNTY ENGINEER. STAKE OR FLAG THE LIMITS OF CONSTRUCTION. SEE NOTES 13, 16, AND 17 FOR CONSTRUCTION LIMITS. LOCATE AND MARK UTILITIES INSTALL TEMPORARY EROSION CONTROL MEASURES SHOWN ON SHEETS 5 TO 9. INSTALL CONSTRUCTION ACCESS RAMP AND CONSTRUCTION ENTRANCE PAD AS NEEDED AND APPROVED IN THE FIELD BY ENGINEER. INSTALL STAGING AND TURN AROUND AREAS AS APPROVED IN THE FIELD BY THE ENGINEER. TO MINIMIZE DISTURBANCE TO EXISTING NATIVE VEGETATION, MACHINERY ACCESS ALONG THE STREAM WILL ONLY BE ALLOWED APPROXIMATELY EVERY 50 FEET AS SHOWN ON SHEETS 5 AND 11. . REMOVE FLOW OBSTRUCTING WILLOWS AS DESCRIBED IN NOTES 13 TO 15. O. REMOVE SEDIMENT AND REED CANARY GRASS AS DESCRIBED IN NOTES 16 TO 21. 1. REMOVE ANY TEMPORARY CONSTRUCTION ENTRANCES AND ACCESS ROADS THAT ARE NOT NEEDED FOR MITIGATION CONSTRUCTION 2. CONSTRUCT MITIGATION AND REVEGETATE AS SHOWN ON SHEETS 14 TO 18. I 3. WILLOW REM R IN SELECTED LOCATIONS FROM STA 0+00 TO STA 5+40; SEE TABLE ON SHEET 10 AND DETAIL SHEET 15. 4. WILLOW BRANCHES AND ROOTS THAT ARE LIMITING THE STREAM FLOW WILL BE REMOVED BY HAND AND/OR HANDHELD SMALL MACHINERY TO MINIMIZE DISTURBANCE. WILLOW BRANCHES THAT ARE NOT LIMITING STREAM FLOW WILL NOT BE REMOVED. EXACT WILLOWS TO BE REMOVED WILL BE DIRECTED IN THE FIELD BY THE ENGINEER OR ECOLOGIST. 5. WOODY NATIVE VEGETATION THAT IS REMOVED WILL BE MULCHED AND SPREAD OVER REED CANARY GRASS TO SHADE OUT GRASS AS DIRECTED IN THE FIELD BY THE ENGINEER OR ECOLOGIST. 6. SEDIMENT REMOVAL IN THE C EL WILL OCCUR FROM STA 5+40 TO STA 26+26 7. REED CANARY GRASS REMOVAL IN THE CHANNEL WILL OCCUR IN SELECT LOCATIONS FROM STA 0+00 TO STA 29+00. SEE TABLE ON SHEET 10. 8. MACHINERY FOR REMOVING SEDIMENT AND REED CANARY GRASS SHALL BE OPERATED FROM THE BANK. 9. SEDIMENT AND REED CANARY GRASS REMOVAL SHALL BE DONE IN THE DRY. A STREAM BYPASS PLAN SHALL BE SUBMITTED TO THE ENGINEER IN ADVANCE OF INSTALLATION FOR FINAL APPROVAL. PRIOR TO INSTALLATION OF THE BYPASS THE KING COUNTY ECOLOGIST WILL REMOVE FISH FROM THE CHANNEL. DO NOT INSTALL THE BYPASS UNTIL YOU HAVE BEEN GIVEN PERMISSION BY THE KING COUNTY INSPECTOR TO DO SO. EXCAVATE SEDIMENT AND/OR REED CANARY GRASS FROM NOW DRY CHANNEL. i 1. RETURN FLOW TO CHANNEL UNDER DIRECTION OF ENGINEER/ECOLOGIST. SEE NOTES ON I SHEET 8. i L I ..... \1"1 • 14 .~ ----"---~ -- _-'I---.-.-----SEC:"2,·TWN.23:·R. 5 E, W.M. ~ "" HAROLD GAM BINI. JR . ~,15019 S.E. MAY VALLEY RD \, (£09]) " ~ STREAM • " ....... BAllJINDER S+ RASPHAL BU TT AR .. +.... .. 148TH AVE SE ". '. \ / -"'---' j. , ,; DESIGN LEGEND \ ~/4M SEDIMENT REMOVA..1 AREA eO'll)) IN-STREAM WETLAND BUFFER· PER KING COU (FOR PURPOSES ONLY) PRUNING AREA 110') CAO REGULATION THIS PROJECT STREAM BUFFER (165') PER KING COUNTY CAO REGULATION (FOR PURPOSES OF THIS PROJECT ONLY) , PLANTING MITIGATION LINE (15' BUFFER) \ _-=~1:\-""~\Gi7t""~:~~:;;~l~§ 1-\ .. ''' .... _''," ... ... ,,' --:\,~ •• ~i~~~~~;~ ":1 ~~~'9i~'~5~;~~~T~ ~1~~N"g;~l:~f~ "'. \. .. IV \.\', r '::<~,J d. '%. -", '\ -j , I , j 'j"'" / ) / ,/ ... -''', , ". '. •••• > '. ""', "'\ \ ",_ "1:" \ ) . .. , , "''-_,_ '~:::' •• ". "'.. .'c."..... ,. ~"~"' ... .. /'/.'''''--'.---~-'',,-~--~'" ',',---~ 1/" ......~::::.:~~,<,<:<:<:'.,' . \\ .... \. -'-. "--. .~ " "-." ' "'" " \ " '" '.., '-, ~~''', ", "" ''-, \ \ '" \', " "--'. -, "-"-'--.. ~.--.--~-" .. :.-.-..... , '-. '-..., \ \; \ '."~ ... -.'" \ ''\ . /"" I····"··· ""'Y' ',,-'" '.." -', ", ~~-,,''''''-' "-... ", " -", --.,.,\, ',,-'-..,~,-.-.-, ... --~-._----... "-~, \ \, ~ \ \ '-"',-\ \., ~--.,. ~ (, jt . "', --'~-__ ,~ -". "-,~ \. \ \. \ \ \ "'-. _ \ '" _ '''-\ ''''_ ~ ! I i '--.'''''''' ',~~--~ '\ \ \ \ \ \ \ " ", .... ,---"'-"" ",,-( I ... , .. r-'7 LJ '-",-~, ~'''...'~ \ \\ 'I '11\ \ \,",,''-,''---..-. -""'----'''---\ '\"'-'-....", l ..... "-I ~ I '~"" ''I I" \ '-'-'" -. -'''. ~·-"-"-~c \ '--,~-" "~"'-"--. ': . ." \" I " \. \ ' I \ \ '" -----'-'. ~ ,,\ ~."-" '\ "" (I I ""'''--''''''''''",,,,. \ \ '\ !\ \ \\\:~::~ <\,.,\ .. " ..... , ..... ,.', ..... , "'. \,\" i \___.",,-\ ' -', ... '" '" ....... '".__ '-. "-_,, \" / ,\ ,,_ \ \ I \.. ""-~-'-'------.. ,'... \, ~'" ""-""'" "'~-.. ~ '''-..,,_ "\ "'" '\\. \ ~""-' NOTES: 1. PARCEL LINES SHOWN ARE KING COUNTY GIS PARCEL LINES AND ARE SHOWN FOR VISUAL PURPOSES ONLY. THESE PARCEL LINES ARE NOT ACCURATE \', ENOUGH TO BE USED FOR PURPOSES OF SURVEYING, DEED TAKES, OR ANY \ \, OTHER LAND TRANSACTIONS OR DELINEATIONS. \, \ 2. BASIS OF BEARING FOR THIS PROJECT IS NZ01 '12"E, THE INVERSE BETWEEN \" \,. KING COUNTY CONTROL POINTS 3871 eN 188995.987, E1316685.925) AND 3705 \'''' "'\ 0," · (N191108.582, E1316760.441)(NAD 83/91 COORDINATE VALUES). \" \' .. I 3. BENCH MARK IS KING COUNTY CONTROL POINT NUMBER 3871 WITH A' "" · NAVD88 ELEVATION OF 405.42. ' ""t. '1;.., IN FEET EXISTING LEGEND - . . _ . . -. . -TOE (BOTTOM) OF STREAM -------DRIVEWAY LINE , ,····x ..... ·1··· .. ." FENCE • SURVEY CONTROL ---PROPERTY LINES --------RR O-W LINES -\j/----__ DELINEATED WETLAND W.S.L.G.N.Z. NAD 83/91 NAVD 88 Renton PI;:m;~,. ,j'll, I Division 09056 01-20 1 "I---t-----__ ~~""""'\;;;;;'""~_l__:-__I APPROVED: lD~O~N~~~~2::~ __ ~~~-'-'-1 REW 800K~.==~~~~~~~~V~'==t=~~~~~~~~~~~~~==~ -~ King County MAY CREEK DRAINAGE IMPROVEMENT SHE~~© 4 SURVEYED: KING COUNTY ° 1 -20 10 PROJECT t--I--I--=--':;;:;o~If>.(;;;;i--\::-~~'-+----I MANAGER: SURVEY BASE MA~ING COUNTY 02-2010 KCFCZD No. DOUG CHIN 1 1 PROJECT No. _--=9:.:.;A:.:.;12::.:0:..:5:"-""_--l TREVOR CRAY, PLS l=~~~~~~~~~=d~:=jt==t====:j DESIGNED: CHECKED: __ ~~ ~2!ij~~~LI---1f1-J~"::"'-_"f-:~»~:...LL-I--+---I 1---1-----I-~~~--I---l----I ~!!:...B~!::lA. ____ .p~1!11_1 MAINTENANCE DESIGN ENTERED: -DIVISION No. ___ -.:..4 __ --i NUM. BY DATE ~D~A_LE_N_E=~~O~N ____________ ~~:.:.;11~ SURV~ No. ____________ ~ Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director OF 18 SHEETS --- ""J ; ~~~~~~: SCALE IN FEET --" -- i I I . '-"- \ \ \ TEse LEGEND 1++++++ + + + + + \I-+ + + + ------I§] x X X X X -------C&G------- ' ,~ - , , , , - STAGING AREA DRYING AREA ACCESS ROAD _,~, 't~ ~ \I \jI ---:;:",,/ "'\~~ '\I ..-/ //"/~ INSTALL WEIGHTc:r)SILT CURTAIN AND MAINTAIN 2-FOOT WIDE TEMPORARY PLUG FOR CHANN~L ALI",V "~ ~//' \ 9 9_j ' '-" ~ , / .-,- r--'-' -c'Y-\:J WETLAND HABITAT MITIGATION ADr::A_ ~1i:;;:'''i,l''tt''' I ~~v,L OFF-CHANNEL --~ ALCOVES o o + '<t STREAM BUFFER (100') , , I CONSTRUCTION ENTRANCE STREAM ACCESS, APPROXIMATELY EVERY 50 FEET CONCRETE BARRIERS WITH PLASTIC LINER SANDBAG BARRIER OR EQUIVALENT BYPASS HOSE AND PUMP ~ PLANTING/MITIGATION BUFFER SILT FENCE ~'ir-<iUi STREAM BUFFER WEIGHTED SILT FENCE/CURTAIN "'.:i '1-' i\lii. "" ,~, "'" "'. ",i "" Wli ,,.-, WETLAND BUFFER CLEARING AND GRADING LIMITS , ....... , •.• ~ .• ~-~-•••. 100 YR FLOODPLAIN CONSTRUCTION ENTRANCE OTE: , , " " \ " (" \ REMOVE CONSTRUCTION ENTRANCE ACCESS PAD UPON COMPLETION OF CONSTRUCTION. PLANT ALL AREAS WITH NATIVE VEGETATION PER ECOLOGIST. MERIDIAN W.S.L.G.N.Z. NAD 83/91 :"', J O:"<Ef; \TJ', il{) 1 S'flJ \ \ , \ \ ,-/ ./ \ \ \ CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 \ \ NAVD 88 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) DUf\JVFG/i.f\1 \ Ti~U ; ./ / o o + H/\F~OLD ~ 5019 : , \ ---.. -... \, " "", '>----WET' AND' SUFFER ' <~;:>t t:;;; rt /,~ . . _ Lf"\ 'y,1'-~; r;';~ ~1~\ ""il '~,;:Z" DISTURBED. ~g~~~:I~~~Iir~~;;:;:'~~~'~'~' ;!_L~:;""~:ni~;;--"'l, _""~i,,,,ii",,'~ "",''','''S' "T"R':~M---' B' -u",'r"--, -', ", __ ,,,.~ , ' C#I'l1E~~"'K" ".----" ,"-'" Fe "1;'lii~() t\ I C _ ' ''''I,,,,,,,,, ,"R--" '" \ WI I I rJW<;·'·i~nc ESS POINT£;''''W ------"-,.' ---' :-' •• ,'\. " ". 'm,,.,,,,,,,,,--, .. ,-. , ~:!})1!!i ~,'~~ !i!:1' • \ /_ ••. -i DIRE~1.E~ " ' '/ '>'~'\~ "" ';;;iL,"~, ~~ k-", -~E"NGINfE~/ECOLOGIST TO AVOID .. --___ :::~.-~~: , ., .. "'. \ \, .. ) DISTURBANCE TO MATURE TREES, OFF \, __ ---,-,--'-.-.'_ : (=ROAD EQUIPMENT REQUIRED TO ~,., STREAM BYPASS SUMP, \ \ 'MINIMIZES~TJ:;<"IMPAH:-r:O-.-lNCLUDE-PUMP, HOSES AND (ECOLOGY TRACKED/EXCAVATOR, OR EQUWACENT;--., ___ -----BLOCK/STEEL PLATE DAM TO BE AND TRACKED DUMP IRIjCK OR RELOCATED AS CONSTRUCTION PROCEEDS ___ EQUIVALENT. ? ----.-" ---. -. _ ALONG CREEK. -EXIS,JING-FARM FENCES TO BE TEMF*ORARILY RELOCATED AND RESTORED , AFTIlR CONSTRUCTION /' SILT FENCE rffi \ 9 \ '--'"""" / I .,--- ( ./ ___ ,. __ "e""."_ \ --, • .. , .. , EXISTING LARGE: ROCK 'AND FENCE TO BE_ .. TEMPORARILY RELOCATED . , ._, "-, .-,,~ . ---. ,. -, ~-- -'" '" '-'>. , --, -. / "-". '- i i , ! \ , , j' STREAM UFFER (165') ------rq ~ @ o o + ~Ni-il r~JEY 81,-!ETFR["( WJ\U<EF? !~d2~) SJ.:,~ MAY V/\LLEY PU 11 -,--,-~,--,--,-, o o ± OJ . -. "-. SUMP NEEDED SOUTH SOIL DRYING AREA'· .. "--" -'. -, . " --'. --.. '-, '~. """" . '" -. -----"_. - .. -'. ... ",,-~ . '" -, , "'-" '" '. "~ 1--+---------:;;;;;;;:rt'~~I___+--_i APPROVED: DON ALTHAUSER P.E. FIELD BOOK~.-=~~~~09~0~5~6+~O~1 ~2~O~1~f~~~r~~~ii3~~~~~:~~~~~~~~~~~i~~~~~~~~ 1 tQ King County MAY CREEK DRAINAGE IMPROVEMENT 5 KCFCZD No. PROJECT SURVEYED; KING COUNTY' 01-2010 MANAGER: DOUG CHIN 1 SURVEY BASE MA~ING COUNTY' 02-2010 TREVOR CRAY. PLS DESIGNED: DALE NELSON 1 1 PROJECT No. ___ -"--9A--'-1_2_0_5 __ --l SURVEY No. --------1 Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit OF 18 SHEETS CHECKED: --~±.J~~~1£:£\L!*--'t-.L..:---1-;~I'::{;~-8--!~r-I----j MAINTENANCE I--I-----.J-:-::..J~=----_+-+_-_l DESIGN ENTERED: _M::;,.'---'-'RAc.;:D:..:E=L=.LA'---____ -I--'-"-"''-''-'-11'-1 DIVISION No. ____ .....:4 ___ -1 NUM. BY DATE Christie True, Director TEMPORARY EROSIOI\! AND SFDI.ENfAlION CONTROL PLAN, l.EQEND 2006- "-"'" . _ ...• / .. ,.-.-" ' ... " ....... ~-'-. i ..... : '--.--~ // ..• , .. _- / (' / --- / / \ / / ./ , // / / / / / / REMOVE VEGETATlqNOBSTRUCTING CHANNEL FLOW AND REED./CANARY GRASS AT THE / DIRECTION OF iECOLOGIST OR ENGINEER PER VEGETATION REMOVAL CROSS SECTION DETAIL ON SHEET iSlAND TABLE 2 ON THIS SHEET. j , /" o o .. / NOTES: \ \ .. \ /' / 1. SEDIMENT REMOVAL FROM STA. 5+40 TO STA. 26+26 2. STAGING AREA SHOWN ON SHEET 5 ($EGA~~. PROPERTY) ~~.j ~ tfk~!lF5J," 1lfEil_ ~j~ ~. REMOVE SEDIMENT '----"'T 5+40 TO 26+2.6 SEE TYPICAL SECTION SHEET 15 '~" ---'-'''~ -- --, i PRuNE IN STREAM/ VEGETATION AT STATIONS LISTED IN TABLE 1 BELOW AND PER VEGETATION REMOVAL CROSS SECTION DETAIL SHEET 15 TABLE 1 Stationing of the In-Stream Willow Pruning for May Creek Station From Station To 0+00 ()-f·:)() l-) --I / C) 1 + ~)(J .£j+C)() 4+:-,)() -+ -I q: ) :)+4(.) 315.0 310.0 \ i .,:-'j .,.J I TABLE 2 Stationing of the In Stream Reed Canary Grass Removal Station From Station To 0+30 0+70 1+50 3+00 4+50 4+90 26+26 29+00 - " - I TABLE 3 , , " -- / Stationing of Sediment and Vegetation Removal Station From Station To 5+40 26+26 ----- , .. \V_ ---- ----------.. -.. " ---. 305.0 '----'---. 300.0 -0+90 -0+60 -0+30 0+00 0+30 0+60 0+90 1+20 1+50 1+80 2+10 2+40 2+70 3+00 3+30 3+60 DOUG CHIN ~~~------------~~~~~--r----;APPRO~D:~D~O~N~~~~~P~.E~. ______ ~7~~1~11 FIELD BOOK: ____ ~O~90~5~6W-.!:O~1~2~O~1 t==t==;=:;;;=r~~=~~~t~~c=l SURVEYED: __ ~K~IN:G:-:C:O~U:N~TY:-t~0~1~2~O:1~Ot=t~t~t:.=::=;;;:;~;=Jb;t1~4~==I ~~~:gE~: SURVEY BASE MA~ING COUNTY 02-2010 KCFCZD No. PROJECT No. _---.::9:.:.:A~12:::0:.=5 __ --1I 7 1 1 TREVOR CRAY, PLS 02-2010t~~~e~~~~~~~A~=t=+===1DESIGNED: DALE NELSON 1 1 SURVEY No. ______ ---1 CHECKED: ___ ~""--" ~~~~,l,WLJ-----1~"-----"'I-;,;;;-'Jt(r......L."--T---t---t MAINTENANCE ~-j-----+---""":'-----+---t----I DESIGN ENTERED: ~M.:;;.,-,-,RA..;:D:.:E;;;;;L=LA-'--____ -+-'-'-'=':"-'-'-I DIVISION No. _____ 4 ______ -1 NUM. BY DATE ------- 3+90 4+20 4+50 o o STREAM ED --- DO -- . --" _ Ilii!'!i ' ~\lii:~ / / G I"V"\LI J:. IN CHAI\INEL, 4+80 5+10 5+40 5+70 6+00 King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director \ SCALE IN FEET h\W--EXISTING GUARDRAIL '" \ \ \ , I ,; STING SE 308 " , ENT 6+30 6+60 , , , \ E;XISTING GUYWIRE ---\+---f-L---;'+-'-T~~01 6+90 ) \ 148TH BRIDGE D RIDGE 7+20 7+50 7+80 CALL 2 WORKING DAYS BEFORE YOU DIG 1~800-424-5555 315.0 310.0 305.0 300.0 MAY CREEK DRAINAGE IMPROVEMENT S~~(Ql§:btIVfr~fFj) OF 18 SHEETS 2006- WETLAND BUFFER (25') SCALE IN FEET t ~ 1.3 Or'J V\IEL.L. 2914 LYONS AVE NE PLANT 15' BUFFER WITH WETLAND VEGETATION rn""., I-t--. / LANTING TABLE SHEET 1 / / / / / j ! ) NOTE: LOG PLACEMENT TO BE DIRECTED IN THE FIELD BY THE ENGINEER/ECOLOGIST. SEE LOG TABLE AND MITIGATION CONSTRUCTION NOTES SHEET 17. LOG / LOCATIONS SHOWN ON THIS SHEET AR.[/CONCEPTUAL ONLY. .--" ;, ... ," . ' J, \ ) INSTALL 3-STRAND BARBED-WIRE! FENCE WITH T -POSTS. TO BE / FIELD ADJUSTED ASDIRECT.£O.TO MATCFfMITiGATION AREA.' l5:SDfFER WITH ·WIETu~.ND VEGETATION FROM TABLE SHEET 18 -..... "'.'''''-", .... ", INSTALL 3-STRAND BARBED-WIRE FENCE WITH T -POSTS. TO BE FIELD ADJUSTED AS DIRECTED TO ATCH MITIGATION AREA. DALE NELSON 1 1 KCFCZD No. PROJECT No. _---=9c....Ac.:..:12=.:O:..::5 __ -l SURVEY No. --------1 ~=:(~~e~~~~~~;;=A~j=t==j DESIGNED: CHECKED: .~_~~-1:!!J2Q!'i-I-Q6=.£Q.:lQi---\l2~ ___ '1-:::;o-']1~::::"':U-1-+---I I----j~-_-----,t_::_:..J:e::=---__+_-+__---I DESIGN ENTERED: ....:M:.:.:._R:.::A-"'D:..:::E:::::LLA"-'--____ -+...:.7.L.=.~1:....:1'_1 ~~I~T5~A~~~ ___ ...:.4 ____ -I NUM. BY DATE --,'; APPLY PROPEX 8418 OR EQUIVALENT AS DESCRIBED SHEET 17, NOTES (8) 4 . PLANT WITH WETLAND ENHANCEMENT VEGETATION FROM TABLE ON SHEET 18. ., King County I Department of Natural Resources and Parks l Water and Land Resources Division ~ Stormwater Services Section Capital Services Unit Christie True, Direc/or \ \ I I • u ! ,,"- CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX.) MERIDIAN I J , \. W.S.L.G.N.Z. NAD 83/91 NAVD 88 AUG -5 MAY CREEK DRAINAGE IMPROVEMENT 14 OF 18 SHEETS 2006- STREAMBED GRAVEL FOR ALCOVE APPLICATION: " US STD. SIEVE SIZE PERCENT PASSING BY WEIGHT \ TYPICAL SECTION HABITAT MITIGATION ALCOVE GRADING STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 SCALE: H: 1"=10', V: 1"=10' OHWM NOTE: OLSON, P. AND E. STOCKDALE. 2010. DETERMINING THE ORDINARY HIGH WATER MARK ON STREAMS IN WASHINGTON STATE. SECOND REVIEW DRAFT. WASHINGTON STATE DEPARTMENT OF ECOLOGY, SHORELANDS 7 ENVIRONMENTAL ASSISTANCE PROGRAM, LACEY, WA. ECOLOGY PUBLICATION #08-08-001. FIELD STAKED BY KING COUNTY ENGINEER III, ENVIRONMENTAL UNIT MARCH 2011. _ ~~ ~ LD~O!:!..N ~A~L"m.!:!-lA~UI~ I<:I'"R~P::E.E"-. __ -I-..!.7L!:.':!. /20~'11q ___ ~09~O~5~6-W0~1=3'20~1~' ::;t==t==:;=:~~~~~r':lu~~""':t "~t;JL=1 APPROVED: -FIELD BOOK: _ • 1 ~ :::Jr'iiii" J1 KCFCZD No. SURVEYED; KING COUNTY 01 2010 -af}!.J-_ T--~··"n.'" ~~~~g~R: DOUG CHIN 7/2011 SURVEY BASE M~ING COUNTY 02 2010' _f"": "'-....... _ PROJECT No. _--=9.:...:A.:.,:12:..:0:.::5 __ -I -.1' .... \0"'\'[ _....., S ~ In~. SURVEY N TREVOR CRAY, PLS 02-2010 l==i'tf'~.,.)t:I..l~!I{e~~~~~~~A~-\=l=:t==tDESIGNED; DALE NEL ON IfLU11 O. ----------1 DALE _SON 02 .. ?n10 T l.' nY..-\" 8 -/.' ,\J -'--'IA ~ 1-~<1 MAINTENANCE !---J. _____ .-I--",----lIiI!!!-~.-___ +__i--_I DESIGN ENlERED: ..!M~.-'''~A''~Il>I~ ____ _I....!/'.L. j/~LUI'-2-11 DIVISION No. ___ 4~ __ -I NUM. BY DATE CHECKED: ., --~~ ---,--.. ,. ' 6 INCHES 4 INCHES 1 1/2 INCH 3/4 INCH 3/8 INCH NO.4 NO. 40 NO. 200 70-80 55-70 45-60 30-50 25-35 16-30 15-20 0-5 COBBLES MAY BE INCLUDED IN THE GRAVEL AND ALL COBBLES THAN 4 INCHES IN DIAMETER SHALL BE EXCLUDED FROM THE GRADATION TEST. GRAVEL AND COBBLES SHALL BE ROUNDED. LARGER C ........ ' u_"';, ALL 2 WORKII'IY OAT ::>;~;:'I; I)f /Ten tQ King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director , BEFORE YOU DIG Ie; D'Visi tOil 1-800-424-5555 AUG _ On (UNDERGROUND UTILITY LOCATIONS ARI', \ 2UII ~." SH EET '~lj ivf/f:;'ffJJ 15 MAY CREEK DRAINAGE IMPROVEMENT OF 18 SHEETS 2006-16 .• ,,-! L ,. " TYPICAL SECTION -HABITAT MITIGATION LOG PLACEMENT HABITAT FLOODPLAIN AREA AND ALCOVE STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 SCALE: H: 1"=10', V: 1"=10' ~iIIO. 1---I-------_-r::a .. ~.'u-F-"II!>.111\MI---I-----4 APPROVED: DON ALTHPJISFR P.E. FIELD BOOK(:: =~~~0~9~0~56t[~0~1 ~2~0~1 ~=~~~~'3ra~~~:":;~'!'~'-~~~f5IJ~~ SURVEYED:_ KING COUNTY 01 2010 '1C,/v \....1-_ r .. \. 1 ~~~~gETR: DOUG CHIN ,-.' ... ·-.-., .. -.--..... -.. ----r--.. '---.. -.. ".-..... -.-----+-.,-.----.. -.. -.. ------..... -------+-----..... .--.' ,-... ----,. -.. --.•. ----.-,,,.,,-.--. ... ..----. -... --,---.., I I: --,-.'['-------.. ,,-----------: "-" ._~._.".'" ••. ,""'_ •. "'~ ," __ ._, __ ._". __ 1._,~. __ '~.,_" •• , .. "."--.-,, •.•... ,'-"""-_." •• ,"_ •. ,.,,---,.-•• <' •• _--,,-_," __ , __ ,_._ •• ___ ,_."_~ __ ."_"_,, __ ~._,,L_._" .. ___ • ~ ___ . _ . ___ .0 •• _ ,_ __ .:! ! : ! SEE PLANTII'JG NOTES AND -PLAN1rING --PLAN-SHEETs ---F.'OR--------- .. --.--.--.----,.-----,. -----. -1,,----.. ,·,-···· .. ·····-···-·-.... ---.. ,L---,··--------.. ··--·---'--.. ·----.. ··-ri.---.---ELA~IJNG .. W.iLLOW STAKES,. --'" L ---.. , .... -.. ---,------.. L .. ---,----- I' :. I: ) . ; . ! : \ " . . .. -.-. -'-.,,-.. . "---'-'"'" , .. 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BY DATE Christie True, Director CALL 2 WORKiNG DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE MAY CREEK DRAINAGE IMPROVEMENT ., ~nr ·16 '. LOG TABLE # of LOGS LOG SIZE LOG ROOTWAD OR 3/4" NON-GALVINIZED CHAIN LENGTH WITHOUT (W lOUT) FINISH GRADE PROVIDE MANTA RAY MR-'I ANCHOR PER ~., N LOGS WITH 5/8" DIAM. REBAR CUT FLUSH TO LOG 16 60 7 5 4 total 30 30 total ALCOVE AREAS 18"-24" dbh 30' 16"-18" dbh 30' 12"-18" dbh 30' FLOODPLAIN ROUGHNESS 12"-14"dbh 30' 12"-18"dbh 30' LOG WITH 5/16" DIA. STAINLESS STEEL CABLE FROM ANCHOR TO CHAIN ATTACHMENT '---15' MIN. DEPTH BELOW FINISH GRADE. ACQUIRE 6' EMBEDMENT IN CONSOLIDATED SOIL LAYER. TEST HOLDING CAPACITY PER MANTA RAY VENDOR SPECIFICATIONS. 2 27'min 78 total EYE AT EXISTING GRADE. CONNECT WITH LOK-A-LOY 10 CONNECTING LINK OR EQUIVALENT. SECTION ~ iii J: J: Z s: b ~ LOG WITH ANCHORS SNAG DETAIL NTS NTS SNAG wi AT LEAST 4 LIMBS ATTACHED OR REATTACHED FILL TOP 12" INCHES WITH SAME MATERIAL AS ADJACENT AREA INFILL WITH CRUSHED SURFACING BASE COURSE. TAMP TO COMPACT 13 ~ 13 ~ SNAG NOTES: • \ Amdldpt.polt wtdI t\IIIIO 5/16 ·p~bIt hlb with walllhtill .7 I"-Wf"-or pff/lMU~ WETLAND PROTECTION SIGNAGE NTS 1. WILDLIFE SNAG TO BE PLACED AS DIRECTED BY ENGINEER OR ECOLOGIST. 2. ALL SNAGS SHALL BE WESTERN RED CEDAR OR DOUGLAS-FIR TREES WITH A SUBSTANTIAL PORTION OF THEIR LIMBS LEFT INTACT. DO NOT TRIM TOPS, AS DAMAGED OR BROKEN TOPS ARE PREFERRED. PROVIDE LOGS WITH NUMEROUS UNTRIMMED LIMBS. WITH A MINIMUM OF 6 LIMBS. LOGS USED FOR SNAGS MAY BE PARTIALLY HOLLOW AND CONTAIN CAVITIES AS LONG AS THEY ARE GENERALLY SOUND AND INTACT. 3. SNAGS SHALL BE A MINIMUM OF 10 INCHES IN DIAMETER AT BREAST HEIGHT (DBH) WHEN INSTALLED AND SHALL BE PLACED INTO THE GROUND TO A DEPTH EQUAL TO 1/3 OF TREE HEIGHT BELOW GROUND. 4. SNAGS WITH SUBSTANTIAL ROOT MASSES ATTACHED MAY BE PLACED TO THE DEPTH INDICATED AND BACKFILLED WITH QUARRY SPALLS AND SOIL ONLY UPON APPROVAL BY THE ENGINEER. rootwads rootwads rootwads w/out rootwads snags . ..:. - MITIGATION PLAN NOTES (A) CONSTRUCTION NOTES 1. TREES TO BE PRESERVED WILL BE FLAGGED IN THE FIELD BY THE ECOLOGIST. 2. INSTALL SILT FENCES WHERE DESIGNATED ON THE PLANS. INSTALL ANY OTHER EROSION AND SEDIMENT CONTROL MEASURES AS REQUESTED BY THE ENGINEER 3. ELEVATION SHOWN ARE FINAL GRADE, 4 TO 6 INCHES OF OVER-X WILL OCCUR AND BE BACKFILLED FILLED WITH STREAMBED GRAVELS OR COMPOST WHERE INDICATED ON PLANS. 4. EXCAVATION OF ALCOVES ADJACENT TO THE STREAM CHANNEL SHALL TAKE PLACE ONLY DURING THE FISH WINDOWS AS DESIGNATED IN THE PERMITS. WHEN EXCAVATING ADJACENT THE STREAM CHANNEL AN EARTH PLUG SHALL BE LEFT BETWEEN THE EXISTING STREAM CHANNEL AND THE EXCAVATION AREA. PRIOR TO REMOVING THE EARTH PLUG AND CONNECTING THE EXCAVATED CHANNEL, A TURBIDITY CURTAIN SHALL BE INSTALLED AS SHOWN IN THE DETAILS TO PROTECT THE STREAM FROM SEDIMENT AND TURBIDITY DURING CONNECTION. 5. IF ANY GROUNDWATER IS ENCOUNTERED DURING EXCAVATION, DEWATER BY PUMPING AND BROADCASTING TURBID WATER THROUGH SILT FENCE AND DISSIPATED OVER VEGETATED STRIP IN UPLAND AREAS OF THE SITE. IF GROUND BECOMES SATURATED A BAKER TANK SHALL BE USED. 6. ELEVATIONS ASSOCIATED WITH CONTOURING ALCOVE AND FLOODPLAIN AREAS IS TO BE DIRECTED BY ECOLOGIST IN THE FIELD. 7. PARTIALLY BURY AND PLACE LOGS IN THE EXCAVATED ALCOVE, LOG PLACEMENT SHOWN IN THE PLANS ARE SCHEMATIC; ACTUAL PLACEMENT AND ARRANGEMENT TO BE DETERMINED BY THE ECOLOGIST IN THE FIELD. ANCHOR AS SHOWN IN PLAN DETAILS. 8. PLACE 6 INCHES OF STREAMBED GRAVELS WITHIN THE ALCOVE AREA. 9. PLANT EMERGENTS AND SHRUBS IN ALCOVES ACCORDING TO PLANTING PLAN. 10. REMOVE TEMPORARY STABILIZED CONSTRUCTION ENTRANCES AND REMOVE HIGH-VISIBILITY FENCES, AND ANY OTHER EROSION CONTROL MEASURES STILL INSTALLED AT THE SITE. 11. CONTRACTOR SHALL PROVIDE STREAM ISOLATION / TURBIDITY CURTAIN PER WASHINGTON DEPARTMENT OF ECOLOGY STANDARDS. (A) PLANTING NOTES 1. MITIGATION PLANTING PLANS REPRESENT A CONCEPTUAL PLANT LAYOUT. ALL MITIGATION PLANTING PREPARATION WILL BE DIRECTED IN THE FIELD BY THE ECOLOGIST. 2. PLANTING SHALL TAKE PLACE DURING THE DORMANT SEASON (NOVEMBER 1 ST THROUGH FEBRUARY 28TH). PLANTING MAY BE ALLOWED AT OTHER TIMES AFTER REVIEW AND WRITTEN APPROVAL BY THE ECOLOGIST. " 3. APPLY JUTE EROSION CONTROL FABRIC AS DIRE0TED BY ECOLOGIST WITHIN THE FLOODPLAIN EXCAVATION AREAS AND ALL PLANTING AREAS WHERE REED CANARY GRASS HAS BEEN COMPLETELY REMOVED . • 4. IN ALL PLANTING AREAS WHERE REED CANARY GRASS IS PRESENT, FIRST MOW THE GRASS. COVER MOWED REED CANARY GRASS WITH PROPEX 8418 (OR A SIMILAR BARRIER MATERIAL AS APPROVED BY THE ECOLOGIST) AS NEEDED AND DIRECTED BY ECOLOGIST. AND STAKE IN PLACE USING LIVE STAKES. 5. PLANT STAKES AND TREES AS DIRECTED BY THE ECOLOGIST THROUGH THE PROPEX (OR EQUIVALENT). 6. ALL PLANTS SHALL BE NURSERY GROWN A MINIMUM OF ONE YEAR. PLANT MATERIAL IS TO BE SUPPLIED BY COMMERCIAL NURSERIES THAT SPECIALIZE IN PLANTS NATIVE TO THE PACIFIC NORTHWEST. PLANT MATERIAL SUBSTITUTIONS ARE SUBJECT TO APPROVAL BY THE ECOLOGIST. 7. NO TACKIFIER, HERBICIDE, OR FERTILIZER SHALL BE USED IN THE PLANTING AREAS. '\ (A) GENERAL NOTES , 1. TO PREVENT REESTABLISHMENT OF INVASIVE VEGITATION, THE TOP 24 INCHES OF EXCAVATED SOIL IS NOT TO BE REUSED AS FILL ANYWHERE ON THE PROJECT SITE. (D) KING COUNTY WETLAND/STREAM PROTECTION SIGN INSTALLATION NOTES: o THE WETLAND/STREAM PROTECTION SIGNS SHALL BE POSTED ON THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT. . e ONE SIGN SHALL BE POSTED FOR EVERY 150-FEET OF THE BOUNDARY OF THE MITIGATION AREA AND/OR THE CONSERVATION EASEMENT IN A PROMINENT LOCATION. SIGNS MAY ALSO BE ATTACHED TO NEW AND EXISTING FARM FENCES. . G SIGNS ARE AVAILABLE FOR $9.22 FROM: KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES 900 OAKS DALE AVENUE SOUTHWEST RENTON, WA 98055-1219 CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPRO X.) MAY CREEK DRAINAGE IMPROVEMENT HABITAT MmQATION ENUANCB.£NT INSTAl I ATION DETAILS AND NOTES 2006-16 V-'- / / ,~/ o o + \ , \ \ \, \j \\ a o + i' . ",\ a o '. + " 00 I I , I I I J I J I j \/ If I /",?- ';~'iit.(~t1 i ~~/ ~r'" '~_ J / / -...---.~'--- May Creek Riparian Buffer Planting, west & east of 148th Ave SE CPLA~~~~{~;~ o~ ,,00 n latin Name Common Name Size/Specifications Trees Alnus rubra Red alder 6-8' Height Plant 9' O.e. Picea sitchensis Sitka spmce 5 gal., 5-6' Height Full Dense Foliage Plant 9' O.e. Pupulus balsamifera spp. Black co([onwood 6' stake, top on, 1" diameter trichocarpa Plant 9' O.C. Thuja phd"la Weslem red cedar 5 gal., 5-6' I-leight Full Dense Foliage Plant 9' O.e. Shrubs/Willows Corn us sericea Red-oiser dogwood Bare root, Minimum 36" Long " Plant 3' O.e. Salix lasiandra Pacific willow Live Stakes, 6' Long, 112-1" Diameter Plant 3' a.c. Salix sitch ens is Sitka willow Live Stakes, 6' Long, 1/2-1" Diameter Plant 3' a.e. Mall Creek Wetland Enhancement Planting Plan· west of 148th Ave SE Total Area: Approximately 130,680 square feet (3 acres, latin Name Populus trichocarpa Common Name Black Cottonwood Size/Specifications 6' stake, top on, I" diameter Plant 9' a.c .. _-, ~ Quantity 260 260 260 260 2755 2855 2855 Quantity 7,000 " , ... ~ ___ . __ e·_·_ ., < " / ... -" , \" EAST OF 148TH AVE SE BUFFER MITIGATION PLANTING SCALE: H: 1" -60' May Creek Alcoves Planting Plan ~ west of 148th Avenue SE ( latin Name Common Name Size/Specifications Emergents -for alcoves near stream Scirpus acutus Hardstem bulbrush Plug (Plant 12" a.e.) Eleocharis pall/slris Common spike-msh Plug (Plant 12" Cl.C.) Carex stipata Saw beak sedge Plug (Plaut 12" a.c.) - Shrubs/Willows Cornus sericea Red-oiser dogwood Bare root, mi. 12" long Plant 3' a.e. Physocarpus capiLatus Pacific ninebark Bare root, mi. 12" long Plant 3' Cl.e. Rosa pisocarpa Pea fruited rose Bare root, mi. 12" long Plant 3' O.e. Rubus speclabilis Salmonberry Bare root, ml. 1211 long Plant3' a.e. Live Stakes Salix silchensis Sitka willow Minimum 6' Long 3/4-1 " Diameter Plant 3' O.C. Live stakes Salix lasiandra Pacific willow Minimum 6' long Minimum 3/4" -1" diameter Plant 3' O.C. Li ve pole cutting Populus Irichocarpa Black Cottonwood Minimum 6' long IViinimum 3/4 "_111 diameter Plant 3' O.e. EROSION CONTROL SEED MIXES WETLAND AREA 67% Dwarf Tall Fescue ~-" Quantity SOO 500 SOO 175 150 250 150 300 300 250 Cornus sericea Red-oiscr dogwood Bare root, Minimum 12" Long 300 10% Seaside Colonial Bentgrass Salix lasiandra Paeiiic willow Salix sitcliensis Sitka willow *PLANTS WILL E ROUGH NOTES ON SHEET 16, Plant 3' a.c. Live Stakes, 6' Long, 112·1" ])iameter Plant 3' a.e. Live Stakes, 6' Long, 112-1" Diameter Plant 3' O.c. 8,000 3,000 _~~~O~9~0~5~6~0~1~-~2~O~1~===t==~~~~~~~~~~~~~i===1APPRO~D:~~~~~~~P.~E~. ___ ~~~~l_1 FIELD BOOK: _ ., 10% Meadow Foxtail 5% Western Mannagrass 6% Red Fescue 2% Clover UPLAND AREA 20% Dwarf Tall Fescue 30% Dwarf Perennial Ryegrass "Barclay" 30% Red Fescue 10% White Clover 10% Colonial 8entgrass SURVEYED: KING COUNIY 01-201 PROJECT KCFCZD No, MANAGER: DOUG CHIN SURVEY BASE MA~I-,-,N.ccG_C.::..O=-U=-N.::..IY~.::..O:.:2=--=2:.:0...:.1 =t---+-----:::--:;_Et\o-~3'."".Jl-=-_+_-_l_-__I PROJ ECT No. __ .::.:9A...:.1:.:2:.:0..=5 __ --I TREVOR CRAY, PLS DESIGNED: DALE NELSON 1 SURVEY No, -----------1 - ...., ~,t'" . ' / / \, \ \ / /l (--\-.. , ,~, ~ .; / I \ \ '. I, i \ ! \ ) 1, \ WEST} OF 148TH AVE SE MITIGATION PLANTING SCALE: H: 1" = 60' ) , .. j \ ~~ \~. '~ k:.. ",~. \ \ \ " ., CALL :2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE AP~)Rn)( MAY CREEK DRAINAGE IMPROVEMENT SHEET 18 King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director OF 2006- TOWNSHIP 22 TOWNSHIP 23 "'--. . r--__ ._ "'---... _-"'-- w z w > <:( "--. . . --. S 69'S 1'J0' 194 ~ .6,3', <0 ~ ~ ~ ..,. .trj • ---__ ss:;94----::S-.:8~.3~'4~5~'O~."_!~ , ". '1000 I') 85.94' S .. !'v' 9869' 'l'A, N 88'01'50· W rv It) , ..,. • "8"". I __ ~':"':::""'-':~~ o~..,. 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'" ". . ~ ~ ~ ~ ~ ~EE GRAvq SPECIFIC~TIOI'{S TH S SHEET· ~ IT ~ ~ ~ ~ ~ ~ '/"'~ " '-' ~ 5T ALCOVE STAT!ONS. ~ : ~ ~ ~ T-IF stREA~ IBED ~GRIL ~ __ 40;00 30;00 20;00 10100 ct 10ioo I 20;00 I '30;00 I 40;00 50;00 60iOO 70ioo I 80;00 90;00 10d.00 11 d.oO , ~ 2 OHWM NOTE: , TYPICAL SECTION HABITAT MITIGATION ALCOVE GRADING STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 OLSON, P. AND E. STOCKDALE. 2010. DETERMINING THE ORDINARY HIGH WATER MARK ON STREAMS. IN WASHINGTON STATE. SECOND REVIEW DRAFT. WASH1~IGTON STATE DEPARTMENT OF ECOLOGY,SHORELANDS 7 ENVIRONMENIALASSLS.TA~CE PROGRAM, LACEY, WA. ECOLOGY PUBLICATION #08-08-001.' . SCALE: H: 1"=10', V: 1"=10' I t Irl~ rALlAllur, NU I t:S: .~. J... I : J ,: :: ~ : ~.' .. ~I'll ~~~~ RAY Mn~.)R~.c.OMr":_ T' -,' .. WI ,L.SE! I ,~... T '1Y ... Cl ;:· .I.W), ...... ; .................. , ............. , ... ' ......... 1 ................... ·ArAo'VE LOG J::M .~ ......... , ...... ' .. ~-.... -.. , ......... ; ......... : ......... ~ ................... ~ ............ ' .... . • EMi3r~·"'·IT)F 5( ~~"(~;'ENl C::IIR"'ACF AREi OF nr.~ ~ r-301~uu I OG MII\ 12'1 DBI-. . I ~L I~ LOC , ••.. • II :--"CHVBUR 60 t't.t'(I~ENT OF LOG L~Nli I : AI 1-G'fL" \ ~: 1"\""" lV~ ~ ~ II ~.~ ...• ·1 .... ~.~~~.: ... ~I?···~~t~~·I.~: .... I.: ... ::-:::' ... ~ ~ ... ~IT~ ....... , ........ + ....... , ......... ~ .................. ~ ......... , ......... f ........ i""""'~"'" .. , ...... ~ .................. ; ................. , ...... " .......... : .............. ~ ........... , ...... ; ................. ; ............... + ... / ... I ........ ·; ........ ·, .. · ...... ; ...... · ........ :?h,nr .. . -I , ~ : ::: ::: ~ f.. ~ "'N /~ , : : : : . . . . .. .: ' . : TYPICAL M..~NTRf RAY: N~C:: :8:-' i IIONS:--+-.....l. :: ... + ........ ~ ........ I ........ ·,· .................. , .................. ~ ......... , ......... , ........ , ...... "',' ................. , .................. , ........ r"" ........................ ~ .................. , ......... , ......... , ......... , ......... , .................. , .................. ~ .................. , ......... , ......... , ........ , ......... ~ ......... i ........ ·~· ...... · ......... , ............ ·t .. .. 40~00 : 30~00 : 20~00 : 1 O.~OO : : 10.pO 20;00 40~00 TYPICAL SECTION -HABITAT MITIGATION LOG PLACEMENT HABITAT FLOODPLAIN AREA AND ALCOVE STATIONS 2+33 TO 3+04 AND 5+09 TO 5+53 SCALE: H: 1"=10', V: 1"=10' : 50mO : , : -: 60~00 ~ . 70~00 , 80;00 90;00 100,.00 11 O~Ob SEE SHEET 17 OF PLAN SET FOR FLOODPLAIN ROUGHNESS LOG INSTALLATION DETAIL . 1--+-----------;-+---1 APPROVED: DON ALTf<AII""R P.E. FIELD BOOK: 09056 01-2010 ~J--+-----------+--+---I ti King County . SURVEYED: _-:K:IN:G~C~O:U:NTY~~0:1 =2:0:1~ O=t==========+=t=~ ~~~:iiR: -=D:...;:O.=.UG;:,..,...::C""'HI""'N ______ t-'-'....::..:;,.-'-'--1 SURVEY BASE ~ING COUNTY 02 2010 TREVOR CRAY, PLS 02-20101--+-----------;-+---1 DESIGNED: DALE NFl "()N CHECKED: __ D~AL-E!:...J:'J NJ.!:!IEL_~SON'4_'0,g.=2--~:2011~ O-+-----------t---t---j DESIGN ENTERED: .JMU.®2!J,!"fIAL ___ -I-U~LI NUM. REVISION BY DATE 9A1205 4 , Department of Natural Resources and Parl;s Water and Land Resources Division Stormwater Services Section " Capital Services Unit Christie True, Direc/or , . CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTIUll' LOCATIONS ARE APPROX.) MAY CREEK DRAINAGE IMPROVEMENT SHEET 1 Cit" 0> J" Y j ".enton Plannino D/·vl· . v sion OF 1 B.EVATIONS AUG'" 5 lOll SHEETS lRU?, rG [en\\f~[fJ 2006-16 ---------------~---- TABLE 1 Stationing of the In-Stream Willow Pruning for May Creek TABloE: 2 Stationing of the In Stream Reed Canary Grass Removal I Station Fr~m Station To Station From Station To 0100 0130 0+30 0+70 . 0+ 70 1+50 1+50 ;"" 3+00 :5+00 ~+50 4+~ 4+90 4 g() ~)+/() il+26 29+00 NOTES: NO VEGETATION 6" CALIPER OR ,RGER WILL BE ALTERED. I FEMA 100 YEAR FLOOD LINE " J"" , , "",,-. '''. --" _ TABLE3/ Stationing of Sediment and Vegetation R~6val --""'" Station From Station To 5+40 26+26 \ \ \ , 7' ~.,\~\ . . __ 1 \ i 1IiI .... Il' ~' , .. -.~Il; ... I,' ' .. jl m I \ II_ell 'F' 'E"MEA 1"00" y' E t AR7'FL' O' 'O-D LINE '"17!1§ I' I 7I1!!' : ' 'I!il'. .. ---1 .. _ , .,.I~ _~LG~-1 __ I IIIIIIII _ , __ 0_ o '-. I'IiIIu . -. __ ' _~, ...... I ...... I o PRUNE IN STREAM VEGETATION AT STATIONS LISTED IN TABLE 1 THIS SHEET AND PER VEGETATION REMOVAL 'C OSS SECTION DETAIL PLAN SHEET 15 + REMOVE VEGETATION ..,08:STR CHANNEL FLOW AND REED GRASS AT THE. DIRECTION OF LOGIST OR ENGINEER PER VEGETATION CROSS SECTION D~AIL ON PLAN " 15 AND TABLE: 2 ON T)-1IS SHEET. l __ \,,_I_@-I __ i _,_- + FEMA 100 YEAR FLOOD LINE FJELD BOOK: _-;;,~~0~9~05~6i_~0~1 --;2~0:-:1~tl_-----_rf__---------~--------------------~--~~~~t~-::='"r--::-::-::j SURVEYED: KING COUN1Y 01-201 SURVEY BASE ~.I.:.;N..:.G_C:.;O:...:U..:.N..:.1Y~..::.::.-=:::..:..::t=~t_~~~-=~===~+=~=......j TREVOR CRAY. PLS ApPROVED: DON P.E. 1 PROJEOT DOUG CHIN KCFCZD No. MANAGER: 1 PROJECT No. DESIGNED: SURVEY No. 9A1205 DESIGN ENTERED: MAINTENANCE DATE DIVISION No. NUM. 4 OHEOKED: --~~..!.!!:~!!:!.f...!:ij,~1illLf--+------------+--1----l REVISION NOTES: 1 . SEDIMENT REMOVAL FROM STA. 5+40 TO STA. 26+26 2. STAGING AREA SHOWN Ot-! PLAN SHEET 5 (SEGAY PROPERTY) " " REMOVE SEDIMENT 5+40 TO SEE TYPICAL C'Lt'Tlr,\Ji SHEET 15 t.Q King County Department of Natural Resources and Parks Water and Land Resources Division Stormwater Services Section Capital Services Unit Christie True, Director SCALE IN FEET .~\ Its '. II \~----T-EXISTING GUARDRAIL ""' -, --- MAY CREEK DRAINAGE IMPROVEMENT \~lLy of l:j SIIE PLAN PI_ , -0l1tcm d()(Jlng D' .~, IVlvlan AUG -5 2011 SHEET 1 OF 1 SHEETS 2006- , .'. ';' CONTOUR INTERVAL: l' BASED ON KING COUNTY SURVEY JAN. 2010. / , , / --. / o o + EXISTING TOP' OF BANK \ \ -------_---r~. ------- --------I \ FIELD BOOK: 09056 01-201 SURVEYED: KING COUNTY 01-201 SURVEY BASE MmlNG COUNTY 02-201 TREVOR CRAY, PLS 02-2010 , , \ , , , 1 PROJECT KCFCZD No. -------1 MANAGER: ~~~~ ______ ~~~I PROJECT No. _--=9::..:A::..:12::::0.:::.5 __ -I DESIGNED: ....!!f.~J:itJ~f:L _____ .J.-LL2Q.1L SURVEY No. ______ --1 CHECKED: __ ~±-!:!!:!::~~~£\L!.ILt--'l-!........:-----t-::;-.4~~...l...!.-\-H~+----I I--I-----f--~=----\-+_____J.--_I DESIGN ENTERED: ~~~~ ____ -l-Lfl.m.:LI MAINTENANCE NUM. BY DATE DIVISION No. __ ~4 __ -I 1 1-./ \ -- ~15-- , , ---'.,----------------- \ EXISTING TOE OF STREAMBED .---------- \ , \ , \ \\' '\ \','" \ '\ i , ' tQ King County .~" Department of Natural Resources and Parks : Water and Land Resources Division ' Stormwater Services Section Capital Services Unit Christie True, Director \ \ \ ) / \ \ \ MAY CREEK DRAINAGE TOPOGRAPHY MAP SCALE IN FEET - o o + 0) DAYS YOU DIG o o + o UTILITY ARE APPROX.) SHEET 1 OF Planning D" .. IVISIOn ( AUG -5 lOll 1 ~~lfirc~U'/l!~f1)) I--_S_H E_ET_S_-I 2006- .. ' ", / I r-/ / \ I ... .", • I I " £ £ £ £ £ & & ~ & & & & ~ = ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ = 4ll~ ·llliB ~b ~ 4w$ ~ ~ .. 41!1'£--:W.t...M-~ _~}J!k 31..~ _,~ ...l ..)JJ_ ..Jl.!.. \~~ ~!.g~, ~ ,,,- --..; -,iL ,,,- .;ll1il{.. .bu..1b 4.1j1~ ~ 4W..M-~ -.iJ!~ ~~ -W.M. .lly¥.. •. ~1JLl(. -~Jo\-.~1U1l~ " ~ ~ ~ ~! ~ ~ ~ A £ ~ ~ £ ~ £ ~ , .' , . -- I ~ ~ ~ -~ ~ ~ ~ ~ ~ = -- ~'!I.. ..iL ~'lI.. _'Ot. _il~ ..llL. -UL ...1lL. ..lJJ.. ...I.lL .~ .,b~ ~~ ~ ,<- " , ; i ..1IJ.. _llJ.. ....\11,.. ..1IJ.. -*- -~ ~ 4-1M~ ~ ~ / WEST OF 148TH AVE S.L RIPARIAN BUFFER, MITIGATION AREA AND ALCOVE PLANTING SCALE: H: 1" = 30' ",. i4; , ... --7 I 4 I I I I ~.,,-,-, ',-",,;'," lk"' '" \ f ' '1 """""'1 . '"" l " " ';';. OJ;-;))'::,,. 09056 01-2010~---r------------------------+--i-----;APPRO~D:~~~~~~~~------~~~~-1 FIELD BOOK: -----------+0-1-2--0-1-i--+-----------+-+---I KCFCZD No. SURVEYED: __ ~K~IN:G~C;O~U:N~TY~~:=;~~==t============+=~f===1 ~~~:giR: DOUG CHIN 11 tQ King County Department of Natural Resources Water and Land Resources Diillisiori Stormwater Services Section Capital Services Unit PROJECT No. _--.,;:.9;..:.A 1.;.,:2:,::,0..::,.5 ---I SURVEY No. _______ -1 SURVEY ~E M~I~N~G_C~O~U~N~TY~~0~2~2~0~1~--_r----------------------_r--t_--__i TREVOR CRAY, PLS DESIGNED: CHECKED: _-----"'-="-!. Christie True, Director ~Q!i..j...QDm1.Q}-+-----------f_+--_I DESIGN ENTERED: ....!!!..o~:!!!!:~'------+L~~-I MAINTENANCE 4 ' DIVISION No. __ ---..: __ ---1 'i NUM. BY DATE REVISION , EXHIBIT 30 LEGEND .~ ~lli6-~ 19M!, -_ 411& _'lI.. ..w... ...'4.. .AI.. ..>It. ..J.1,t. .-W.. ..!4.. ...lJL. ...IlL. -' UNDISTURBED AREA ALCOVE HABITAT GRADING, LOG PLACEMENT AND PLANTING MITIGATION AREA FENCING BORDER OF HABITAT MITIGATION REED CANARY GRASS REMOVAL, LOG PLACEMENT AND WETLAND -IENHANCEMENT PLANTING AREAS c ~ I' ,~J ~ \.".J (j 'Il~ .... _ .. " .. -., ... (~'·).·l ~ C~, 7("') ( RIPARIAN BUFFER PLANTING AREA WETLAND DELINEATION M' UB -STREAM BUFFER, 100 FOOT t: III !iII,1III11111i1111111i11 fil!illlll lililliiII lilillllllil! iIliI WETLAND BUFFER, 25 FOOT " - - ----- -------- 100 YR. FLOOD LINE PROPERTY LINES RIGHT-OF-WAY LINES EDGE OF ASPHALT LINES CALL 2 WORKING DAYS BEFORE YOU DIG 1-800-424-5555 (UNDERGROUND UTILITY LOCATIONS ARE APPROX,) MAY CREEK QRAlNAGE IMRROVEMENT (,ny of fkmton SHEET 1 "'I" ' r onrllng Division OF AUG -5 ZOl1 1 SHEETS 2006-16