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HomeMy WebLinkAboutLarge Format� _ R r N IS a V O •C� •Y a a° o v r Q U .. Z w =n* o_ c°C a E �'N •c p� c v aa> w Q 0 z 0 w WI SDMH RItvl=1 67 r, » 'n r� f� R ,a CALL 48 HOURS BEFORE YOU DIG 1-800-424-5555 KCDNR/METRO SS NOTES 1. Mr. Eric Davison, King County Wastewater Treatment Division, (phone 684-1707) shall be notified at least two days prior to construction in the vicinity of King County's Eastside Interceptor. 2. During construction, no debris shall be allow to enter King County's Eastside Inceptor, section 1. 3. Plans for dewatering adjacent to King County facilities shall be submitted to Mr. Eric Davison (phone 684-1707) for King County review and approval at least five days prior to construction. 4. King County does not guarantee the location, diameter or pipe elevation; therefore, field verification Is recommended prior to construction. SSMH RIM=18,51 I.E.. 1 2" C�)I�l.,---7..) GRAPHIC SCALE 1 � LEGEND SSMH SANITARY SEWER MANHOLE SSCO SANITARY SEWER CLEAN OUT SDMH STORM DRAIN MANHOLE CB CATCH BASIN (TYPE 1) FH FIRE HYDRANT WM WATER METER WV WATER VALVE PP POWER POLE WMH WATER MAN HOLE 15 0 15 30 60 rIv"H FH ! RIM=18 63 1 INCH =30 FP. ` %'r.L. 36 CONC=11.88 MH S - 10 LT SDMH I.E. 36' CONC=� ;M�- _ -. / .\ ! 17 1 0NC � "� SSMH R ALD 'I8 COTTON WOOD C IMP-_~• -'--`-tt?D CLt -RIM=16.73 - FG -17•6 - �= -_--M`-�-� I.E 8" CONIC '14,831 � � �X-- ~- PROTECT toJE `�i�k�i�1 ~ _ - X ___ COTTON WOOD CLMP - ' - -_- _ _ _ ��`S�;\} ...-• Ps^.--, "'"` L 1 p"_'"' '�' -- - _..- r t✓' (, ,T- rs,t ' `v�Ct� ] 4%}'.) `�.! _ 11t� _ .._. __ _ .._ _.. _ _. _. y — = I e _ _ _ _ _ I I _ - _ _..— 1✓ j / / l.' frJ�� fir/ CGTTONJW00D ''0 ✓. ', __�� —, r iL to / I 16 E. IF _- _ �0WOOD -G- .Ti E _E CMR _ GE d1.E. E36" CORR=8,95 S} POWER T03�DEROP@_ $-� - - - - r AUG _--•- .-- � I M = 0 6 _ - -_ - -_ ' - _ _ _ LID _ ,I ram"" r -, --- ✓ " - - - - �CuTTON 'rd00D 20 mpg 15,41 r I.E. 8 CONC,=8.76 f .✓' _ - - - - _-�'- _ "- -�`- -- <' - '' I r itBOX i ✓' - _ _ _ - --- =fir• ____-_ r.__�__ = _%- RiM=? 4.58 ~- a.E. 8' CONS=12.28 PROTEC_T'K3R6 f "'pry--��3CTCON j—Si,,,. �,7LC ,/ r `' ,Xv--1-'r-r• }h` (� _. {'`� _.. _._ -' i - '�•-'' C�.i i'�NY,..VF-�u11_ '�_A�f_-'.L-�,.: 1 ✓" µ W0 IU I f L'- �8 i l 11 PF #8i�\SQUASH PIPE E.=11.49 l 1 _ SCIJAcH E I.E.=11.46 Of0N O 18 T4 w< � I W Q 7 w IAB r P f I FG .� \ \ ` `` ✓ r ' '' � r `E���'" ..- \ / J- I 1 .L-- -"^. _J — ' _ _ � ',va"'M Jam„ -CRAB APPLE 18 APPLE TS r_____—_---------_—— c1a1� _ �-- ✓WMli q�ilfa WV _ PWR ki io 48" CLVT /, 6'x6' TOv�E - / 1r jt��� Hri` _ x T �1�x A 0 151� <Fk ' - NV % ,��. F _ --- —— t GcR INTERIM RADIN ST IT B i D WMH � O WMH H] MH S WWf CHRIM REPARATION AND FILL PLACEMENT ACTIVITIES SHALL BE AS SPECIFIED IN THE f I I Box l_.-� I.E E&W12" CC1RR= i 5.8 TECHNICAL ENGINEERING INVESTIGATION DATED JULY 1999. FH s == PLEASE NOTE THAT MINOR GRADING AND FILL PLACEMENT IS PROPOSED 2. SEE SHEET 3 OF 6 FOR EROSION AND SEDIMENTATION CONTROL PLAN. AT A MINIMUM, FILTER FENCE EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE IN PLACE WITHIN THE CITY OF RENTON R.O.W. PRIOR TO DISTURBING THE PROJECT SITE. SEE SHEET 3 OF 5. �f WV ti ' ALL DISTURBED AREAS WITHIN THE ti ADJUST POWER CITY R.O.W. MUST BE RETURNED TO 3. SEE SHEET 3 OF 5 FOR DRAINAGE STRUCTURE DETAILS AND ELEVATIONS. ALL DRAINAGE �ANSF�RMER EXISTING CONDITIONS ORB STRUCTURES AND PIPE MUST BE APPROVED IN WRITING BY THE CITY OF RENTON UTILITY R R. E CC�RR=1 48 GRADE T� NOTE: INSPECTOR PRIOR TO BACKFILLING OF STRUCTURES OR BURYING OF PIPE. 9.88" C 19.82B TYPE 2 C SEE SHEET 3 OF 5 FOR PROPOSED STORM 4. ALL GRADING SHOWN ON THIS PLAN REPRESENTS INTERIM FINISHED ELEVATIONS. FINAL S T I E SURFACE CONFIGURATION WILL BE DETERMINED THROUGH SITE PLAN APPROVAL. DRAINAGE IMPROVEMENTS SURFACE ELEVATIONS WILL BE DETERMINED AND IDENTIFIED ON THE CONSTRUCTION PLANS TO BE SUBMITTED FOR BUILDING PERMITS. 5. UPON COMPLETION OF DRAINAGE SYSTEM, AND FILL PLACEMENT, ALL DISTURBED EARTH SURFACES ARE TO BE RE-VEGETATED/HYDROSEEDED. CONTRACTOR TO MAINTAIN SITE UNTIL FULL VEGETATIVE COVER IS ESTABLISHED. 5. REMOVE ALL VEGETATION, BRUSH, SHRUBS AND TREES WITHIN CLEARING LIMITS, �XH�a1T�3 NININ A F; JAMIE PIERRE AT POWELL/THOMAS SITE l SITE LOCATION: N.E. CORNER OF INTERSECTION OF SW GRADY WAY AND POWELL AVE S.W. RENTON, WASHINGTON 98055 OWNER: JAMIE PIERRE (GRADY WAY II, LLC) 11525 LAKE CITY WAY NE SEATTLE, WA 98125 PHONE# (206) 364-2200 BENCHMARK FIRE HYDRANT (TOP CENTER BOLT) LOCATED 20' NORTH & 539 EAST OF S.E. CORNER OF 900 POPULAR PLACE CITY OF RENTON: 20.89 CITY OF RENTON, KING COUNTY, WASHINGTON UTILITY GRID 4324 N.E. 1/4 American Engineering Corporation = Engineers Planners • Surveyors — = - 4032 148th Ave. N.E. Redmond, WA 98052 ** PHONE (206) 881-7430 Fax (206) 881-7731 VICINITY MAP PROJECT INFORMATION: PROPERTY ZONING CLASSIFICATION: IM (MEDIUM INDUSTRIAL) TOTAL SITE AREA: 87,205 S.F. TOTAL EXISTING IMPERVIOUS: 0 S.F. (ONSITE) TOTAL ADDED IMPERVIOUS: 0 S.F. (GRADE AND FILL PERMIT) DETENTION OF STORMWATER: DETENTION NOT REQUIRED. DETENTION PROVIDED DOWNSTREAM. TREATMENT FOR WATER QJALITY: TEMPORARY FILTER FABRIC FENCES FIRE DISTRICT: CITY OF RENTON, FIRE DEPT. GAS: WASHINGTON NATURAL GAS ELECTRICITY: PUGET POKER SEWER: CITY OF RENTON WATER: CITY OF RENTON v INDEX OF SHEETS o"-:t� �SfONAL�G DMiREs 05-07-U SHEET 1 TITLE SHEET ?)f 671g9 SHEET 2 INTERIM GRADING, FILL & REHABILITATION PLAN SHEET 3 DRAINS GE, EROSION CONTROL AND CONSTRUCTION MITIGATION PLAN SHEET 4 EROSION CONTROL NOTES & DETAILS SHEET 5 GRADING & DRAINAGE NOTES, DETAILS AND PROFILES JOB NO. NTT 0 Y v 0 0 a rn rn Q 00 C) Q J IZ (n O <t z 75; I--- O O z �- O Jz Li 0 oz nry LiJ U LLJ LLJ � Q � Ir z z WQO • we 0 v o� �Z �C :E C � 3Q •6 W 7 ►� w a ca wE mE ad��, , c a, as c� z 0 w or PROPOSED CONSTRUCTION DATES PROJECT NARRATIVE GRUBBING/EROSION CONTROL OCT. 1999 ESTIMATED EARTHWORK DRAINAGE OCT. 1999 GRADING OCT. 1999 GRUBBING TO CONSIST OF TRIMMING EXISTING FILL PLACEMENT OCT. 1999 ONSITE VEGETATION TO GROUND LEVEL AND REMOVING CUTTINGS - ESTIMATED VOLUME HAUL = 1,600 CY. PRELIMINARY DRAINAGE INSTALLATION CONSISTS OF ENCLOSURE OF THE EXISTING DRAINAGE SWALE I WHICH SHOULD OCCUR DURING THE DRIEST WEATHER POSSIBLE TO AVOID SILTATION OF EXISTING SYSTEM. ESTIMATED VOLUME OF DRAINAGE PIPE AND STRUCTURE GRAVEL BEDDING MATERIAL = 900 CY w ESTIMATED IMPORT FILL VOLUME 1,500 CY ANY AREA OF THE SITE WHICH WILL NOT BE WORKED I ON WITHIN 15 DAYS OF FILL COMPLETION MUST BE HYDROSEEDED AND VEGETATION MAINTAINED. I HOURS OF OPERATION WITHIN NORMAL CITY OF RENTON CONSTRUCTION HOURS LIKELY BETWEEN 7:00 AM - 8:00 PM. AFTER CONSTRUCTION OF PROPOSED PROPOSED HAUL ROUTES DRAINAGE SYSTEM, PROTECT EXISTING CONSTRUCTION ACCESS, GRUBBING AND DEBRIS STRUCTURES WITH STRAW BALES AND REMOVAL IS PROPOSED OFF OF GRADY WAY. IT IS FILTER FABRIC DURING FILLING AND 30' 30' LIKELY DEBRIS WILL BE HAULED TO THE SOUTH VIA GRADING ACTIVITIES PLEASE SEE GRADY WAY EAST AND THEN HWY 167 SOUTH. SHEET 5 FOR DRAINAGE SYSTEM SSMH I GRAVEL FOR PIPE BEDDING WILL ALSO LIKELY BE PROFILE. If�IIvI-1.51 I'E' `` CONC=7.31 BROUGHT FROM THE SOUTH VIA HWY 167 NORTH AND W THEN GRADY WAY WEST. GRAPHIC SCALE I ' SSMH SANITARY SEWER MANHOLE SSCO SANITARY SEWER CLEAN OUT SDMH STORM DRAIN MANHOLE CB CATCH BASIN (TYPE 1) FH FIRE HYDRANT WM WATER METER WV WATER VALVE PP POWER POLE WMH WATER MAN HOLE I �> 15 0 15 30 60 I SDMH DUST, MUD, NOISE MITIGATION RIMS 18.63 IF FILLING AND COMPACTION ACTIVITIES CREATE I INCH = 30 FT. H � � " f i.E. •J6" COINC=11.88 a UNACCEPTABLE LEVELS OF DUST, THE WETTING OF FILL WILL BE UTILIZED FOR DUST CONTROL. MUD E-4 WILL BE CONTROLLED WITH THE INSTALLATION OF MH w ROCKED CONSTRUCTION ENTRANCE/EXIT PAD AND - y DAILY STREET CLEANING CONSTRUCTION NOISE WILL�� O BE WITHIN ALLOWABLE PARAMETERS. ju IL -„ - ,,, =�; 8, �n ? hS L I MP;,A PRIOR TO ANY SITE DISTURBANCE w a SDMH LC .I:ED LID 6"E - INCI TALL 200 L.F. FILTER FABRIC 1 x 7 2 2- ` NG ALONG PROPERTY LINE RIM=1 7.2g^ a �n r -1 1 � r H _h - _ _- 3 X'_- E DETAIL SHEET 4) I.E. 8 C:ON ( -- - - SSMH _ 0) RIM=16.79 _ -- 1,E. 12» -_6.0 N 7= _ - =� rn 30' F M 30 L.F. 48" VAL CMP(MATCH EXISTING) r " 1 SLOPE = 0.0 36 FT/FT N 77 2 FH I� - 606 C _ - PARCEL B 4y `7- �WV _`- "" ' 52 ^ n I PROTECT 2 EX. 48" CMPS rn 47a' °' FROM ILT AND SEDIMENT. SDMH - _ _- - '- =` _ - - N77 I N MAINTAIN THROUGHOUT CLEARING RIM -°I 6 I �' �- SDMH ! E 3C:'i IORP=8`-7 > �CONS�UCTION OF DRAINAGE _ i Ri,v1= , 5.6 _� I.E. SE12" C:ONC:= i .1 `� �' �� --� - .� �' ,_� � I SYSTEM AND FILLING GRADING INV NORTH = 11.49 ,INV SOUTH = 11.46 =& ,.E. E36' C0RR95 'vti� j� '� - 10 �" SMH�METRO Rile- 6.9' 2 4�'�1 SMASH RI LOCKED LID ' 6 W i PIPE 7 ! I.E.=11.49 SSMH--"' . t 0 w- RIIM= 5.41 R=35.00' -- I.E. 8", C0NC=8.76 O T BOX L=63.878 OUA.H P`IE I I.E.=11-46 RIPARCEL A f .I o ^ SLOPE 48- pop3g MATCH EXISTING F. i 1�1-14.58 / I.E. 8" CONC=1228 ('I i ( ) w � i 472• 15 ( wQ o 13 Q -� cn 5, � R=360.00 22534• w o ww I , E =28.82' N76.57'06 �.. zzI � z I cn x R=440.00' L=28.78' FT/V'� 0,003 6 E _ 0.0p3 WIMH ° WMH \t, P SLOPE MP SLOP ' 48» coF . c PARCEL C,- . , n . ; --- -" ---� ��,iFr H �\ 48" CL�JT 465 4,42 1. .. + I.E.=9.70 --� Y .00 R=5779.58 _-- PRIMARY ENTRANCE \ti, =1.19' L=304.59' INSTALL TEMPORARY 11 CONSTRUCTION ENTRANCE N" t P RSA""i�� _ `= SEE DETAIL, SHEET 4. O -- . = --- R=440. ��8" CLVT t, 6'x6' TOWEIR _ -- o V F r 1 .---- �_ �� L=42.66' I . E. -- 9.60 . 0-- \ r-:Iv48 :U `'ER I.E.r9. 3 R=30.00 c1► S o L=43.48' r 48 CULVERT t \4 � - ����r�� j I.E.= �s ;t CB I 9 1 -', �c , �- ST B __- "r �CRIM=19.5c \S r LT BOA - t? fl+ C'a''�__. f �.�. FH L:`�WI2" CORR=1J.85 H E) wv PROTECT 2 EX. 48" CMPS WMH W�' 4 FROM SILT AND SEDIMENT. MAINTAIN THROUGHOUT CLEARING 1*1 {a ttrll I.E. �CORR_14.88 CONSTRUCTION OF DRAINAGE j -' E&Wl2,> CORK=14.48 SYSTEM AND FILLING/GRADIN RIM=19.88 SEE SHEET 4 FOR INV NORTH = 9 0 (EVVMH `' WMH `'B YPE 2 CONSTRUCTION SEQUENCE. INV SOUTH. = 9.6 30' DRAINAGE STRUCTURE #2 SDMH #1 TYPE If 72" 4 GRATE EL. = 17.3f INV 48"0W=11.27 BOTTOM EL. = 9.27 SEE CITY OF RENTON STD PLAN B027 PROVIDE KNO FOR F CONNECTIONS. DRAINAGE STRUCTURE #1 SDMH #1 TYPE II 72" 0 GRATE EL. = 17.3f INV 48"0W=11.39 BOTTOM EL. = 9.39 SEE CITY OF RENTON STD PLAN B027 PRQVIDE KNOCKOUTS FOR FUTURE CONNECTIONS. 1'' m {; IAHNNN /�Nf-1 0 Y U LLJ Cn I r] L i N � 41 LrT • WE 3a E-4 a_ of mE �E w'NE � •C rn _v v Q_ p— M II U UY 0 Y U 1 t I w Q 0 KCDNR/METRO SS NOTES 1. Mr. Eric Davison, King County Wastewater Treatment Division, (phone 684-1707) shall be notified at least two days prior to construction in the vicinity of King County's Eastside Interceptor. w 2. During construction, no debris shall be allow to enter King IE County's Eastside Inceptor, section 1. 3. Plans for dewatering adjacent to King County facilities shall be submitted to Mr. Eric Davison (phone 684-1707) for King County review and approval at least five days prior to construction. 4. King County does not guarantee the location, diameter or pipe 0 elevation; therefore, field verification Is recommended prior to x construction. SSMH RIM=18,51 LE, 1 CONIC=7.3 W GRAPHIC SCALE I 15 0 15 30 60 ` DMH RIM=18; 63 1 INCH = 30 FP. E ^� ?.E. 3 CONIC=11.88 a u1�M N _-- (T"R ST 40 �..,� - s \ - _-- F I M -1�8. _ T, L T LICE ~ LT SDM H RIM=17 29 C>pp -'firr( . �" .►"N��.��� I.E. 36 GONG= ! 1.D9=16. Y - '" ,.� -- �, r_ -I t 7 a - i.E. 8" f. ONIC,= � _ �- � FG 18 � �/' ! `� CibTT01 'WO ? �2 SSMN _ = �ii�itt ALGA18 -� RIM=1� .79 ``� 1 _ -11111 11111111� C�) ; TON WOOD ,t�i P'--' I.E. 1 �.0 ;i= -- a. _ - ~— 11111111\\111111 17 6 _ _ __ T_T4t -bit OD',CL-h�, s IM-16./' 111 FG _-_._..-- - - - _.-_- - ~N - i° E. 8' CONC -14,8.5,f �- �111� 1'1111 111 X_____ __--- PROTECT -ME ME : �ilkN�10�� _ i.'�',� g COTTON WOOD CLMP -' - - - _- - ~__ ,�_____�,\\� �\ �� 1 b A�FH ___� ST LIB- U1 � C� ,ZT )4-wor D CLMP ��.- r COTTON WOOD _0 SDMH �- - ` C��,R\NG RlM=1 �.67 _- �N - _ �11ti FG 17.3T i.E. 36' CORR=8,97 `6 `~ �' 1 hlA x SDMH _ RIM=1 �J.L3 �— - — _ ! �(j I.E. SE12' ,ONC=11.15 _- - -- -- �=tidR� � 1CC1 .C.T 0 C _d{�tflER -GR0 P10E4 - E. >° _ POWER TO BE _ _ -- - E 36 CORR=8.95 N J a`�m1111_h?fFiiMETR¢)IAtEEi�`OF`IAUG_-16..3�` ANff PO_LS-E _ \ SQUASH PIPE K— D LID COTTON WOOD 2C� I.E.=11.49 SQMH i CIIVI-'{,I, 41 \ j `nNC=&7(: f CE, : PROTE T'r RIM=14.58 _ I.E. CN-1 %.�ii r j �-' ..%'�Qc',.!"`I�IIVN -W11- Tii� h �- COT ,C7N!t�Ef�'l_,� r P-�=-"i�,i1h;�, T^� lam�V) w TY r" Q r QW w-�pT1_" —r t 1il�itttt — — — r .."`/ '.\\\\ \,.,\' it ✓r,.,. ' ' -� � /`ter r' ..-.v^n"_ -'-^"'`-- •- -- _ .,- G _.- ., ..s+-`" , �; \ Rl A 8 ,.FG- 17- tit lv� % \ �,` ✓rr; r✓ r' r r rf CRAB APPL18 �, \ PS;.P%LE f1 TS ------ -- _ Y�/MH H WMH WV 1�s `_"-..._-_...� -J?' i ,`\\ -\\d irr_ '" "" --�-` _.-__-_-_.._-----------' _..-r+LL,�-� � - - l."-"v..e w•-� � r .- l P 1W� — {i {1S 1 IS s't i LT t \ .. "/ � _ (" , "-�" ``-,,..-•.OJ /. .r' ��.., i"1-i�"[-{�1."_ .-''-- p ,-.^'!. J-._ter .- ✓r,, • PF ,, `- _ \� -" - _./ 8' CLVT 'x6 TOWER is j,` \\ `• Ot' "IILYISTSr - Pam_ y WV -' 48' CULVERT � - - �` �� \ � � � � FC, 17 - �- `-�� � _ - -� _= _ ` ��'\ _=- �T �`� _ - - �gINTERIM GRA DINQ, FiLL AND R HA I IT LEGEND SSMH SANITARY SEWER MANHOLE SSCO SANITARY SEWER CLEAN OUT SDMH STORM DRAIN MANHOLE CB CATCH BASIN (TYPE 1) FH FIRE HYDRANT WM WATER METER WV WATER VALVE PP POWER POLE WMH WATER MAN HOLE CALL 48 HOURS BEFORE YOU DIG 1-800-424-5555 EXPIRES 06-07- g9 `+n �; ULVERT LL ��"N AND FILL PLACEMENT ACTIVITIES SHALL BE AS SPECIFIED IN THE I E ,� 48 /1111411 -' �__ ���- GEOTECHNICAL ENGINEERING INVESTIGATION DATED JULY 1999. m ST T B s RIM-"`',5S `l ST LT BOX _ '"�_ CCJ� '== _ I.E. E&W12" CORK=15.845 i7F PLEASE NOTE THAT MINOR GRADING 2. SEE SHEET 3 OF 6 FOR EROSION AND SEDIMENTATION CONTROL PLAN. AT A MINIMUM, F�MH _ FILTER FENCE EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE IN PLACE M = 1'�.38 l> %� S �° ' l ' AND FILL PLACEMENT IS PROPOSED PRIOR TO DISTURBING THE PROJECT SITE. SEE SHEET 3 OF 5. / � WITHIN THE CITY OF RENTON R.O.W. `� -- Jj WV ALL DISTURBED AREAS WITHIN THE i" 3. SEE SHEET 3 OF 5 FOR DRAINAGE STRUCTURE DETAILS AND ELEVATIONS. ALL DRAINAGE S WMH '} @ ` v \ �=l ADJUSTPOWER CITY R.O.W. MUST BE RETURNED TO STRUCTURES AND PIPE MUST BE APPROVED IN WRITING BY THE CITY OF RENTON UTILITY EXISTING CONDITIONS OR BETTER. INSPECTOR PRIOR TO BACKFILLING OF STRUCTURES OR BURYING OF PIPE. �+� CO8 TRANSFORMER NOTE: �vMl� E&W12" CORK='? 4.48 TO GRADE SEE SHEET 3 OF 5 4. ALL GRADING SHOWN ON THIS PLAN REPRESENTS INTERIM FINISHED ELEVATIONS. FINAL % RIM='' 9,88 FOR PROPOSED STORM SITE SURPLAN TYPE ' DRAINAGE IMPROVEMENTS S RFACEFACE E ELEVATIONS WILL BE DETERMINCONFIGURATION WILL BEDED ETERMIANDIDENTIFIED ONED THROUGHSITE THE CONSTRUCTIIONL Z / PLANS TO BE SUBMITTED FOR BUILDING PERMITS. j ", �-f -� 5. UPON COMPLETION OF DRAINAGE SYSTEM, AND FILL PLACEMENT, w .-- ALL DISTURBED EARTH SURFACES ARE TO BE RE- VEGETATED /HYDROSEEDED. CONTRACTOR TO MAINTAIN SITE UNTIL FULL VEGETATIVE COVER IS ESTABLISHED. 5. REMOVE ALL VEGETATION, BRUSH, SHRUBS AND TREES WITHIN CLEARING LIMITS, M-11MMIS 50-9-19 _1(3 A — NINININ rn U-) rn L o 0 a00 o � Y T V v M 6 Z r W a W W 0 J a i 0 a 3 0 0 M 0 EROSION/SEDIMENTATION CONTROL NOTES W Q 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE - CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON DEVELOPMENT 0 SERVICES DIVISION, PLAN REVIEW PROJECT MANAGER. C 2. All limits of clearing and areas of vegetation preservation as prescribed on the plan shall be clearly flagged in the field and observed during construction. 0 (f) F W 3. All required sedimentation/erosion control facilities must be constructed and in operation prior to land clearing I.— ~O and/or other construction to insure that sediment laden water does not enter the natural drainage system. All erosion and sediment facilities shall be maintained in a satisfactory condition until such time that clearing J and/or construction is completed and potential for on -site erosion has passed. The implementation, Ld O Jmaintenance, replacement and additions to erosion/sedimentation control systems shall be the responsibility of 0 01-1 n z 4. The erosion and sedimentation control depicted on this drawing are intended to be minimum requirements to 0 meet anticipated site conditions. As construction progresses and unexpected or seasonal conditions U dictate, the permittee shall anticipate that more erosion and sedimentation control facilities will be necessary to W ensure complete siltation control on the proposed site. During the course of construction, it shall be the ry Z obligation and responsibility of the permittee to address any new conditions that may be created by his Q:� 0 activities and to provide additional facilities, over and above minimum requirements, as may be needed to Ill (f) protect adjacent properties and water quality of the receiving drainage system. n 0 0� 5. Approval of this plan is for erosion/sedimentation control only. It does not constitute an approval of storm Lv drainage design, size nor location of pipes, restrictors, channels, or retention facilities. 6. During the time period of November 1 through March 31, all project disturbed soil areas greater than 5,000 square feet, that are to be left unworked for more than twelve (12) hours, shall be covered by mulch, sodding, or plastic covering. 4.; o 7. In any area which has been stripped of vegetation and where no further work is anticipated for a period o" of 30 days or more, all disturbed areas must be immediately stabilized with mulching, grass planting or other 41 v approved erosion control treatment. applicable to the time of year in question. Grass seeding alone will Y be acceptable only during the months of April through September inclusive. Seeding may proceed, however, 0 0 3.0 whenever it is in the interest of the permittee, but must be augmented with mulching, netting, or other a Q treatment approved by the City of Renton, outside the specified time period. W D Q_ 8. For all erosion/sedimentation control ponds where the dead storage depth exceeds 6 inches, a fence, a \C minimum of 3 feet high is required, with 3:1 side slopes. v) p c 9. A temporary gravel construction entrance, 24' x 50' x 8" of 4- to 6-inch quarry spalls shall be located m E at all points of vehicular ingress and egress to the construction site. \E �N C vv S d o Z �> g W W <� CONSTRUCTION SEQUENCE 1. PRIOR TO FILL AND GRADE PERMIT ENVIROMENTAL REMEDIATION SHALL BE PERFORMED, (UNDER SEPERATE GRADING LICENSE BY OTHERS, INCLUDING DREDGING AND REMOVAL OF 0 0 �; CONTAMINATED SOILS IN THE DRAINAGE CHANNEL. 2. ARRANGE AND ATTEND PRE -CONSTRUCTION MEETING. WITH CITY OF RENTON DEVELOPMENT INSPECTOR. Q 3. INSTALL SILT FENCING AS REQUIRED. 4. INSTALL CONSTRUCTION ENTRANCE PAD. w a 0 5. CLEAR AND GRUB THE REQUIRED WORK AREA. 6. CONSTRUCT CONNECTIONS TO EXISTING DRAINAGE 0° SYSTEM AND NEW STORM DRAIN PIPING WITH STRUCTURES. 7. UPON WRITTEN APPROVAL OF DRAINAGE SYSTEM COMMENCE FILLING ACTIVITIES. 8. PROTECT NEW SDMH'S AND INLETS WITH FILTER FABRIC FENCE, INLET BARRIERS DURING FILLING/GRADING. 9. ONCE FILLING ACTIVITIES ARE COMPLETE, INCLUDING ALL INTERIM DRAINAGE AND SITE STABILIZATION IS IN PLACE, CLEAN UP DRAINAGE SYSTEM. DO NOT FLUSH SEDIMENT OFF SITE. Z 0 10. REMOVE TEMPORARY EROSION CONTROL MEASURES FROM EXISTING UJ 48"0 CMP'S SYSTEM ONLY AFTER ACCEPTANCE BY INSPECTOR. ALL PERIMETER SILT FENCE IS TO REMAIN UNTIL SITE DEVELOPMENT IS COMPLETE. 11. CONSTRUCTION MUST BE STARTED DURING THE PERIOD FROM APRIL THROUGH SEPTEMBER. TIME LIMITS MAY BE EXTENDED UPON APPROVAL OF THE INSPECTOR. STAKES FILTER FABRIC— WASHED GRAVEL - RUNOFF WATER WITH SEDIMENT — BURIED FILTER FABRI DRO WITF STA FI LT FAB "". U61117110001. j i 1 8" SECTION FILTER FABRIC (MIRAFI 10OX OR EQ.) MATERIAL 36" WIDE ROLLS. USE STAPLES OR WIRE RINGS TO ATTACH FABRIC TO WIRE. f--2"x 2"x 14 ga. WIRE FABRIC OR EQUIV. 6" 2"x 2"x 14 ga. WIRE [PROVIDE 3/4" - 1.5" WASHED FILTERED WATER GRAVEL BACKFILL IN TRENCH N & ON BOTH SIDES OF FILTER Q1, FENCE FABRIC ON THE SURFACE. FILTER FABRIC FENCE INLET BARRIER DETAIL N TS NOTE TO CONTRACTOR FILL PLACEMENT TO BE MONITORED AS DESCRIBED IN AEC GEOTECHNICAL REPORT DATED JULY , 1999. ON FILE WITH CITY OF RENTON. W \ 0 / \'XISTING GRO ND 54 / \ FINIS ED GRADE / I / -11 -1 1 -0 1 SECTION 1 SCALES: HORZ. 1 "=20' VERT. 1 "=4' m `-BURY BOTTOM OF FILLER MATERIAL IN 8"x 12" TRENCH. 6' MAX. I I -FILLER FABRIC MATERIAL 2"x 4" WOOD POST STANDARD OR BETTER OR EQUAL 0 6" O.C. ALTERNATE: STEEL FENCE POSTS. STANDARD NOTES: A. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6-INCH OVERLAP, AND BOTH ENDS SECURELY FASTENED TO THE POST. B. THE FILTER FABRIC FENCE SHALL BE INSTALLED TO FOLLOW THE CONTOURS (WHERE FEASIBLE). THE FENCE POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 30 INCHES). C. A TRENCH SHALL BE EXCAVATED, ROUGHLY 8 INCHES WIDE AND 12 INCHES DEEP, UPSLOPE AND ADJACENT TO THE WOOD POST TO ALLOW THE FILTER FABRIC TO BE BURIED. D. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY-DUTY WIRE STAPLES AT LEAST 1 INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. E. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. F. WHEN EXTRA -STRENGTH FILTER FABRIC AND CLOSER POST SPACING ARE USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF STANDARD NOTE E. APPLYING. G. THE TRENCH SHALL BE BACKFILLED WITH 3/4-INCH MINIMUM WASHED GRAVEL. H. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. I. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY F+URING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. FILTER FABRIC FENCE DETAIL N TS OPO V -- TIRES 05.07- ZO&.1 / vv L � 20' MIN. (TYP) XMIN. DEPTH 4"- 6" QUARRY SPALLS �J\OC.) NOTE. O THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOW OF MUD ONTO PUBLIC RIGHT-OF-WAY. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH 2" STONE, AS CONDITIONS DEMAND, AND REPAIR` AND/OR CLEAN -OUT OF ANY STRUCTURES USE TO TRAP SEDIMENT. ALL MATERIALS SPILLED, DROPPED, WASHED OR TRACKED FROM VEHICLES ONTO ROADWAYS OR INTO STORM DRAINS MUST BE REMOVED IMMEDIATELY. TEMPORARY CONSTRUCTION ROAD ENTRANCE DETAIL a 43 0 Z N TS IAI-ININININIAIA ri 0 0 M 0) O M Of 01 a