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SW 1 /4 OF THE NW 1 /4, SECTION 31, TOWNSHIP 29 NORTH, RANGE 5 EAST, W.M. <br />Nc,O , r.,J•-c _ 1 GRADING AND DRAINAGE PLAN NOTES: <br />1 <br />36 <br />� <br />.. - 100.00 (DT <br />r <br />o N 75 OY' <br />to� <br />y <br />T` ••-.-., � TOW: 280.0: <br />•• <br />eow:zn.o' <br />� <br />V 1 <br />�....�^ • ' TOW: 280.5 ! i 1 .} <br />`r <br />f BOW:2TTO 1 t <br />3 ' I <br />ROCKERY W/ V MAX HEIGHT 11 <br />C3.3` <br />1 <br />2 <br />ROOF AND FOOTING e <br />DRAIN <br />c <br />PROPOSED HOUSE <br />FEE: 277.0 <br />a I x <br />TOW:'280.0 <br />16 LF ^' 36"0 HOPE <br />`t DETENTION PIPE <br />1 BOW: 277.0 <br />' <br />TOW: 280.5 <br />m • 1 . BOW: 277.0 `1 <br />�b <br />TOW:2830 <br />2 ' ) BOW: 277.0 �1 <br />GARAGE ENTRY <br />275.5 <br />TOW: 285.0 <br />BOW: 277,0 <br />`v •� <br />, <br />I <br />LOT3•EIL, EVFREI ' <br />N j6ro1 ,``�`` <br />"�Y LINE <br />i .I� TOW:284.5 <br />T BOW: 277.0 <br />r <br />�L 1� <br />' <br />Ofr 1I <br />' I } <br />1 <br />1 <br />i <br />GRADING AND UTILITY PLAN <br />E118 <br />L } 1. SOUS REPORT <br />E. NER ,? r AND -L L 1 i REPORT NUMBER: 19-0050 <br />PREPARED BY: GEOTEST SERVICES, INC. <br />1 DATED: APRIL12,2019 <br />\. ) <br />A - .WOE ,I : `�}• I ) 2. A MINIMUM OF T HORIZONTAL SEPARATION AND V VERTICAL SEPARATION IS REQUIRED BETWEEN DRY <br />. v C \ [ :o ':I UTILITIES[POWER, GAS, PHONE, CABLE, ETC) AND SEWER, WATER AND STORM, AND A MINIMUM OF S' <br />.v <br />4 t,•_,a, _,; t ri - 1 „" - m ,I > If HORIZONTAL SEPARATION AND V VERTICAL SEPARATION FROM ANY CITY -OWNED LINES. <br />r 1 3. A MINIMUM OF T OF COVER IS REQUIRED FOR ALL PIPES LOCATED UNDER DRIVEABLE SURFACES AND V OF <br />/ ' ' COVER UNDER LANDSCAPE SURFACES. <br />4. <br />{ PRIOR TO PLACING ANY SURFACING MATERIAL ON THE ROADWAY, IT WILL BE THE RESPONSIBILITY OF THE <br />r f % DEVELOPER/CONTRACTOR TO PROVIDE DENSITY TEST REPORTS CERTIFIED BY A PROFESSIONAL ENGINEER <br />1 ) t REGISTERED IN THE STATE OF WASHINGTON. <br />( t 5, TOW AND BOW REFER TO FINISHED GRADE AT THE TOP AND BOTTOM OF THE WALLS, RESPECTIVELY. <br />1\ I } <br />1 5. NEW/REPLACED IMPERVIOUS SURFACE (INCLUDING ROW): 4,066 SF <br />NEW BUILDING: 3,116 SF ROOF AREA (INCLUDES OVERHANGS). RUNOFF ROUTED TO DETENTION <br />11j ) • SYSTEM VIA ROOF DRAINS. <br />t h o `\ CONCRETE DRIVEWAY/IMPERVIOUS HARDWOOD: 582 SF. RUNOFF ROUTED TO DETENTION SYSTEM VIA <br />( 4 ! :/ A CATCH BASIN AND CONVEYANCE PIPES. <br />CONCRETE DRIVEWAY (ROW): 271 SF. RUNOFF FLOWS INTO THOMSON AVE. THIS AREA IS INCLUDED IN <br />XP REUSE EXISTING THE DETENTION SYSTEM SIZING. <br />WATER METER <br />AND SERVICE LINE 'I <br />x= `T` •I�"' I h TAP INTO EXISTING SEWER <br />MAIN AT IE: 264.Si, FIELD s ' <br />e3 SSCO p I ; VERIFY SEWER.- <br />1 j ELEVATIONS PRIOR TO <br />UTILITY CONSTRUCTION <br />3 `r- . TIE FOOTING DRAN INTO' <br />Ir TIE INTO EXISTING' OUTFALL LINE OF' -� <br />IF SIDE SEWER DETENTION SYSTEM <br />( ) \F ) <br />R <br />272.92 t , <br />277.0 <br />34 LF-8"PVC @103%APPROX. <br />60"0 TYPE 11 CB W/FLOW <br />( CONTROL STRUCTURE <br />RIM: 272.51 <br />p "�• : IE (6' W): 269.5 4 1 2 <br />LE (36" S): 267.S <br />1� a IE (8" E): 268.0 <br />\ - I TYPE I CB W/ <br />!%' •'f - W` I STANDARD GRATE 1 2 3 <br />I RIM 272.1 <br />IE (6" W): 269.6 <br />/ <br />£ 0 6Lf 6'PVC @0.5%MIN <br />11j, J o <br />4" CIA PERFORATED PVC PIPE <br />r WITH 6' OF 1" MINUS GRAVEL 8" MIN FROM WOOD, <br />{ ALL AROUND, WRAPPED IN SEE STRUCTURAL DRAWINGS <br />NON -WOVEN GEOTEXTILE FABRIC, <br />TOW: 280.0 I �( SLOPE AT 0.5%MIN. TURN DOWN <br />BOW: 2770.0 i I f PERFORATIONS AS SHOWN <br />I <br />' - { FINISHED GRADE <br />6" DOWNSPOUT TIGHTLINE TO <br />( CONVEYANCE SYSTEM @ 0.5% <br /># ' { MIN. PLACE NEXT TO FOOTING _ <br />` f DRAIN OR AS SHOWN ON <br />r( GRADING & DRAINAGE PLAN <br />(CONTRACTOR MAY LOCATE ON <br />EITHER SIDE OF FOOTING ORAIN)� <br />0 <br />I 00 O <br />0 0 00 <br />f O o O <br />j' LINE OF MAX EXCAVATION. o O Q c! <br />IF SOIL IS OVEREXCAVATEO, 0200 oO <br />REPLACE WITH LEAN MIX U 0 0 <br />fj - CONCRETE <br />FOOTING <br />� 1 <br />1 <br />^ © FOOTING AND ROOF DRAIN SECTION <br />2 SCALE: NTS <br />GRADING QUANTITIES <br />TOTAL EXCAVATION(CUT)- 210 CUYDS TOTAL <br />EMBANKMENT(FILL)- 70 CUYDS <br />TOTAL 280 CUYOS <br />THE QUANTITIES SHOWN ABOVE ARE FOR THE PERMIT PROCESS <br />ONLY, THESE VALUES ARE APPROXIMATE. DO NOT USE FOR <br />BIDDING, PAYMENT, OR ESTIMATING PURPOSES. <br />C � <br />ENGINEERING <br />250 4TH AVE. S., SUITE 200 <br />EDMONDS, WASHINGTON 98020 <br />PHONE (425) 778-8500 <br />FAX (425) 778-5536 <br />DESIGN: BJL <br />DRAWN: <br />ATD <br />CHECK: <br />JPU <br />JOB NO: <br />21026-20 <br />DATE: <br />03/05/2021 <br />U <br />J (n <br />Z <br />J <br />LLJ <br />Cl W <br />:D Q <br />W Q cq <br />0 W <br />z rn <br />Z <br />Q <br />Z <br />p = H <br />Z Q <br />� = <br />Z <br />o <br />Q <br />O N LiJ <br />I=- 't w <br />0 a - <br />SHEET <br />C3.1 <br />