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20-100499-Civil Plan-05-26-2020-V151.96' a a a -� a. a --- BASIC SHEET FLOW DISPERSION m 4 E PER FIGURE C.2.4.D OF THE 2016/ E X o E NEW 3/4 WATER METER 0 o kCSWMM E El o -- -- N o F / F 5' EASEMENT FOR LOT 1F F\ I UNDERGROUND ELECTIC SYSTEM 2z�' ZONE RS/ 7.2 % GATE; I A GARAGE GARAGE PER RECORDING NO.6492316 2 ' / / FE= 429.67' FE= 430.17' TAX PARCEL �114700130 / � G 37.0' 34.0' BASIC SHEET FLOW DISPERSION / FOUND "X" ON/2" BRASS DISC,/ / 0, ���� � PER FIGURE C.2.4.D OF THE 2016 I // I \ � � ���x KCSWMM - / INCASED, IN T4E CENTERLINE / / / \ * V/ ��� �� ��� PG1 GATE --- -- - OF 25TH AV� SW. A10.0 BSB �� ��� ALDERWOOD SOUTH LOT 1 LOT 2 CD DIVISION N0.2 LU I I /Ec. _ _ \ 7322.02 SQ FT 5 0' 7224.61 SQ FT / / I w \ 0.17 ACRES 5.0' 0.17 ACRES 10.0' PROPOSED BSB BSB PROPOSED BSB z 7- - - - -- - - -� - - STRUCTURE J 00 STRUCTURE Q W / / / \ CD\ FFE= 431.1T FFE= 431.67' NEW GRINDER PUMP & SIDE LOT 15 SEWER CONNECTION TO SEWER ZONE RS 7.2 1� LF 4" O PVC co w c0 MAIN EXTENSION MADE UNDER X PARCEL 0114700150 LOT 12 (EMAINDER)� Dk-35 @ 0.10% o SEPARATE PERMIT / NEW GRINDER PU I P & SIDE SEWER \ - k o - EXG . ' S89.08' 19"T 139.56' CONNECTION TO SE='MAIN EXTENSION \ Q z ` _ _ _ _ RELOCATED TO EAST PROPERTY LINE MADE UNDER SEPARATE PERMIT ch y y W 19 LF 4" O PVC o `�' `� `�' "'`°Z 0 0 0 0 0 o I SDR-35 @ 0.10% -17-5.- � � c� 2 4.00' - 34.9 DISPERSION TRENCH 4c sc .► _ v „v v v v. PER FIGURE C.2.4.B OF ,► o ,► o 13 DER ALDE 32.1' DISPERSION TRENCH / THE 2016 KCSWM X L• °« o PER FIGURE C.2.4.B OF LOT A =w •v v w .v ,' 1.0 ALDER .v �� " w THE 2016 KCSWMM .v .v 1�3 EDAR - - Wz;W /CITY OF FEDERAL AY Aso a, A� E`R �; Q BLA N0.15-103833-PO-SU \� / / ZONE RS 7.2 N89°29'34"X BSB / LOT 12 PROPOSED 7.5II PRI ATE 25.00' S 149.45' / SEWER EASEMENT X EASEMENT N8�'29'34"W 76.�/6' 6599254 m m / 1 i 6' WOOD FENCE _ I �N00'41'07"E 12.00' � SITE BENCHMARK / I 0I ELEVATION: 427.02 FEET LOT B 5' UTILITIES & DRAINAGE CITY OF FEDERAL WAY NEW SEWER EASEMENT MADE EASEMENT RECORDING BLA NO.15-103833-00 SU UNDER SEPARATE PERMIT I I N .6599254 ZONE RS 7.2 LOT 11 N SITE, GRADING, & UTILITY PLAN SCALE: 1" = 20' SCALE 1" = 20 FT W E 0 10 20 40 60 UNIT OF MEASUREMENT IN US FEET S UTILITY CONFLICT NOTE: THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION, DIMENSION, AND DEPTH OF ALL EXISTING UTILITIES, WHETHER SHOWN ON THESE PLANS OR NOT, BY POTHOLING THE UTILITIES AND SURVEYING THE HORIZONTAL AND VERTICAL LOCATION PRIOR TO CONSTRUCTION. THIS SHALL INCLUDE CALLING UTILITY LOCATE @ 1-800-424-5555 AND THEN POTHOLING ALL EXISTING UTILITIES AT LOCATIONS OF NEW UTILITY CROSSINGS TO PHYSICALLY VERIFY WHETHER OR NOT CONFLICTS EXIST. LOCATIONS OF SAID UTILITIES AS SHOWN ON THESE PLANS ARE NOT GUARANTEED AND ARE SUBJECT TO VARIATION. IF CONFLICTS SHOULD OCCUR, THE CONTRACTOR SHALL CONSULT AP CONSULTING ENGINEERS PLLC TO RESOLVE ALL PROBLEMS PRIOR TO PROCEEDING WITH CONSTRUCTION. A PROPOSED 5.0' PRIVATE SEWER EASEMENT , TAX PARCEL 9574800005 ZONE RS � .2 LOT 8 CITY OF FEDERAL WAY BLA NO. 19-1039�0-00-5U FUTURE DEVELOPMENT NOTE: SINGLE FAMILY RESIDENCES AND OTHER IMPROVEMENTS CONSTRUCTED ON THE LOTS CREATED BY THIS SUBDIVISION MUST IMPLEMENT THE FLOW CONTROL BEST MANAGEMENT PRACTICES (BMPS) STIPULATED IN THE DRAINAGE PLAN DECLARATION OF COVENANT AND GRANT OF EASEMENT RECORDED FOR EACH LOT. COMPLIANCE WITH THIS STIPULATION MUST BE ADDRESSED IN THE SMALL PROJECT DRAINAGE PLAN SUBMITTED FOR DRAINAGE REVIEW WHEN APPLICATION IS MADE FOR A SINGLE FAMILY RESIDENTIAL BUILDING PERMIT FOR THE LOT. GENERAL NOTES: 1. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO THE CITY PRIOR TO THE PRECONSTRUCTION MEETING. 2. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE FEDERAL WAY REVISED CODE (FWRC), APPLICABLE ORDINANCES, AND THE CITY COUNCIL CONDITIONS OF PROJECT APPROVAL. THESE DOCUMENTS ARE SUPPLEMENTED BY THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION (WSDOT/APWA), THE KING COUNTY ROAD STANDARDS (KCRS), AND THE KING COUNTY SURFACE WATER DESIGN MANUAL (KCSWDM). IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE PROFESSIONAL ENGINEER TO CORRECT ANY ERROR, OMISSION, OR VARIATION FROM THE ABOVE REQUIREMENTS FOUND IN THESE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST OR LIABILITY TO THE CITY OF FEDERAL WAY. 3. THE DESIGN ELEMENTS WITHIN THESE PLANS HAVE BEEN REVIEWED ACCORDING TO THE FEDERAL WAY ENGINEERING REVIEW CHECKLIST. SOME ELEMENTS MAY HAVE BEEN OVERLOOKED OR MISSED BY THE CITY ENGINEERING PLAN REVIEWER. ANY VARIANCE FROM ADOPTED STANDARDS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY OF FEDERAL WAY, PRIOR TO CONSTRUCTION. 4. APPROVAL OF THIS ROAD, GRADING, AND DRAINAGE PLAN DOES NOT CONSTITUTE AN APPROVAL OF ANY OTHER CONSTRUCTION (I.E. DOMESTIC WATER CONVEYANCE, SEWER CONVEYANCE, GAS, ELECTRICITY, ETC.) 5. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY, A PRECONSTRUCTION MEETING MUST BE HELD BETWEEN THE CITY OF FEDERAL WAY, THE APPLICANT, AND THE APPLICANT'S CONSTRUCTION REPRESENTATIVE. 6. A SIGNED COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 7. ON -SITE CONSTRUCTION NOISE SHALL BE LIMITED AS PER FWRC (SECTION 19.105.040); NORMALLY THIS IS 7:00 A.M. TO 8:00 P.M., MONDAY THROUGH FRIDAY, AND 9:00 A.M. TO 8:00 P.M. ON SATURDAYS. 8. RIGHT-OF-WAY CONSTRUCTION IS ALLOWED 8:30 A.M. TO 3:00 P.M. MONDAY THROUGH FRIDAY. WRITTEN AUTHORIZATION TO WORK OUTSIDE OF THESE HOURS MUST BE GRANTED BY THE PUBLIC WORKS DIRECTOR. 9. IT SHALL BE THE APPLICANT'S/CONTRACTOR'S RESPONSIBILITY TO OBTAIN ALL CONSTRUCTION EASEMENTS NECESSARY BEFORE INITIATING OFF -SITE WORK WITHIN THE ROAD RIGHT-OF-WAY. 10. FRANCHISED UTILITIES OF OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS THAT MEET ALL CITY REQUIREMENTS AND THE REQUIREMENTS OF KCRS CHAPTER 8 ARE SUBMITTED TO THE CITY OF FEDERAL WAY AT LEAST THREE DAYS PRIOR TO CONSTRUCTION. 11. VERTICAL DATUM SHALL BE KCAS OR NGVD-29. 12. GROUNDWATER SYSTEM CONSTRUCTION SHALL BE WITHIN A RIGHT-OF-WAY OR APPROPRIATE DRAINAGE EASEMENTS, BUT NOT UNDERNEATH THE ROADWAY SECTION. ALL GROUNDWATER SYSTEMS MUST BE CONSTRUCTED IN ACCORDANCE WITH THE WSDOT/APWA STANDARD SPECIFICATIONS. 13. ALL UTILITY TRENCHES IN THE RIGHT-OF-WAY SHALL BE BACKFILLED 5/8" CRUSHED ROCK AND COMPACTED TO 95% DENSITY. WHEN TRENCH WIDTH IS 18 INCHES OR LESS, AND IS WITHIN THE TRAVELED WAY, TRENCH WILL BE BACKFILLED WITH CONTROL DENSITY FILL (SELF -COMPACTED FLOWABLE FILL) AS DEFINED BY WASHINGTON AGGREGATES AND CONCRETE ASSOCIATION. THE AGGREGATE WILL BE 3/8-INCH MINUS. 14. ALL ROADWAY SUBGRADE SHALL BE BACKFILLED AND COMPACTED TO 95% DENSITY IN ACCORDANCE WITH WSDOT 2-06.3. 15. OPEN CUTTING OF EXISTING ROADWAYS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE PUBLIC WORKS DIRECTOR AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH KCRS 8.03(B) 3. 16. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARDS, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS TO PROTECT LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK COVERED BY THE CONTRACTOR. ANY WORK WITHIN THE TRAVELED RIGHT-OF-WAY THAT MAY INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE AT LEAST ONE FLAGGER FOR EACH LANE OF TRAFFIC AFFECTED. ALL SECTIONS OF THE WSDOT STANDARD SPECIFICATIONS 1-07.23 - TRAFFIC CONTROL, SHALL APPLY. 17. CONTRACTOR SHALL PROVIDE AND INSTALL ALL REGULATORY AND WARNING SIGNS PER THE LATEST EDITION OF MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES. 18. ALL UTILITIES SHALL BE ADJUSTED TO FINAL GRADE AFTER PAVING ASPHALT WEARING COURSE. 19. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION ONLY. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCKERIES SHALL BE CONSTRUCTED IN ACCORDANCE WITH CFW DRAWING NUMBERS 3-22, 3-23. ROCKERIES MAY NOT EXCEED SIX FEET IN HEIGHT FOR CUT SECTIONS OR FOUR FEET IN HEIGHT FOR FILL SECTIONS UNLESS DESIGNED BY A GEOTECHNICAL OR STRUCTURAL ENGINEER LICENSED IN THE STATE OF WASHINGTON. OPEN SPACE NOTE: THIS PROJECT IS REQUIRED TO PROVIDE 15% OF THE GROSS LAND AREA BEING SUBDIVIDED. THE AMOUNT OF OPEN SPACE REQUIRED IS 2,182.05 SQUARE FEET. THIS REQUIREMENT WILL BE MET WITH A FEE PAID IN LIEU. DRAINAGE NOTES: 1. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PREPARED FOUNDATION IN ACCORDANCE WITH WSDOT 7-02.3(1). THIS SHALL INCLUDE LEVELING AND COMPACTING THE TRENCH BOTTOM, THE TOP OF FOUNDATION MATERIAL, AND REQUIRED PIPE BEDDING, TO A UNIFORM GRADE SO THAT THE ENTIRE PIPE IS SUPPORTED BY A UNIFORMLY DENSE UNYIELDING BASE. 2. STEEL PIPE SHALL BE GALVANIZED AND HAVE ASPHALT TREATMENT #1 OR BETTER INSIDE AND OUTSIDE. 3. ALL DRAINAGE STRUCTURES, SUCH AS CATCH BASINS AND MANHOLES, NOT LOCATED WITHIN A TRAVELED ROADWAY OR SIDEWALK SHALL HAVE SOLID LOCKING LIDS. ALL DRAINAGE STRUCTURES ASSOCIATED WITH A PERMANENT RETENTION/DETENTION FACILITY SHALL HAVE SOLID LOCKING LIDS. 4. ALL CATCH BASIN GRATES SHALL CONFORM TO CFW DRAWING NUMBERS 4-1, 4-2, 4-3, 4-4 OR 4-5. 5. ALL DRIVEWAY CULVERTS LOCATED WITHIN THE RIGHT-OF-WAY SHALL BE OF SUFFICIENT LENGTH TO PROVIDE A MINIMUM 3:1 SLOPE FROM THE EDGE OF THE DRIVEWAY TO THE BOTTOM OF THE DITCH. CULVERTS SHALL HAVE BEVELED END SECTIONS TO MATCH THE SIDE SLOPES. 6. ROCK FOR EROSION PROTECTION OF DITCHES, CHANNELS AND SWALES, WHERE REQUIRED, MUST BE OF SOUND QUARRY ROCK, PLACED TO A DEPTH OF ONE FOOT AND MUST MEET THE FOLLOWING SPECIFICATIONS: 4%8" ROCK/40%-70% PASSING; 2%4" ROCK/30%-40% PASSING; AND -2" ROCK/10%-20% PASSING. INSTALLATION SHALL BE IN ACCORDANCE WITH KCRS DRAWING NUMBER 51 OR AS AMENDED BY THE APPROVED PLANS. RECYCLED ASPHALT OR CONCRETE RUBBLE SHALL NOT BE USED. 7. LOTS NOT APPROVED FOR INFILTRATION SHALL BE PROVIDED WITH DRAINAGE OUTLETS (STUB -OUTS). STUB -OUTS SHALL CONFORM TO THE FOLLOWING: 7.A. EACH OUTLET SHALL BE SUITABLY LOCATED AT THE LOWEST ELEVATION ON THE LOT, SO AS TO SERVICE ALL FUTURE ROOF DOWNSPOUTS AND FOOTING DRAINS, DRIVEWAYS, YARD DRAINS, AND ANY OTHER SURFACE OR SUBSURFACE DRAINS NECESSARY TO RENDER THE LOTS SUITABLE FOR THEIR INTENDED USE. EACH OUTLET SHALL HAVE FREE -FLOWING, POSITIVE DRAINAGE TO AN APPROVED STORMWATER CONVEYANCE SYSTEM OR TO AN APPROVED OUTFALL LOCATION. 7.13. OUTLETS ON EACH LOT SHALL BE LOCATED WITH A FIVE-FOOT HIGH, 2 X 4 STAKE MARKED "STORM". THE STUBOUT SHALL EXTEND ABOVE SURFACE LEVEL, BE VISIBLE AND BE SECURED TO THE STAKE. 7.C. PIPE MATERIAL SHALL CONFORM TO UNDERDRAIN SPECIFICATIONS DESCRIBED IN KCRS 7.04 AND, IF NONMETALLIC THE PIPE SHALL CONTAIN WIRE OR OTHER ACCEPTABLE DETECTION. 7.D. DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE SYSTEMS DESIGNED TO CONVEY FLOWS THROUGH INDIVIDUAL LOTS. 7.E. THE APPLICANT/CONTRACTOR IS RESPONSIBLE FOR COORDINATING THE LOCATIONS OF ALL STUB -OUT CONVEYANCE LINES WITH RESPECT TO THE UTILITIES (I.E. POWER, GAS, TELEPHONE, TELEVISION). 75. ALL INDIVIDUAL STUB -OUTS SHALL BE PRIVATELY OWNED AND MAINTAINED BY THE LOT HOMEOWNER. 7.G. THE CITY DOES NOT ALLOW TAP -IN OR CUT -IN TEES ON MAINS FOR INDIVIDUAL LOT DRAINAGE. PROJECT SUMMARY: ZONING: RS 7.2 COMPERHENSIVE PLAN CLASS: SF -HIGH DENSITY MAXIMUM IMPERVIOUS SURFACE: 60% MINIMUM FRONT YARD SETBACK: 20' MINIMUM SIDE YARD SETBACK: 5' MINIMUM REAR YARD SETBACK: 5' S P EA: 11 CRITIC AREAS. 0.33 AC 0.00 AC RIGHT-OF-WAY AREA: 0.00 AC IC P SEA 0.00 AC NET PLAT AREA: 0.33 AC LOT 1: PROPOSED IMPERVIOUS SURFACE: 7,322.02 SF (0.17 AC) PERCENT COVERAGE: 41.93% LOT 2: PROPOSED IMPERVIOUS SURFACE: 7,224.61 SF (0.17 AC) PERCENT COVERAGE: 39.75% OWNER SURVEYOR MR. DICK BUTKO NORMAN LARSON, PLS PO BOX 3266 CENTRE POINTE CONSULTANTS, INC FEDERAL WAY, WA 98063 14209 29TH STREET EAST, #105 (206) 650-5677 SUMNER, WA 98390 (253) 987-5924 LEGAL DESCRIPTION: LOT 2 LESS E 81.01 FT THOF LESS S 143.01 FT OF W 89 FT THOF OF REV KC SHORT PLAT NO 978042 R REC NO 7909110872 SD SHORT PLAT DAF - S 1/2 OF S 1/2 OF SW 1/4 OF NE 1/4 OF STR 32-22-05 LESS W 30 FT THOF FOR CO RD-AKA LOT B OF KC LOT LN ADJ NO 8605035 APPROVED 5/27/86 Q/ _/ _/ _/ _/ _/ �/ ( BENCHMARK & DATUM: VERTICAL DATUM NATIONAL GEODETIC VERTICAL DATUM OF 1929 (NGVD 29) PROJECT SITE VICINITY MAP TRUE NORTH. BASED UPON GLOBAL POSITIONING SYSTEM (GPS) LAMBERT GRID WASHINGTON STATE NORTH ZONE COORDINATES. A CONVERGENCE ANGLE OF 01°08'57.03" COUNTERCLOCKWISE WAS APPLIED AT A PUNCH IN 3" BRASS DISC AT THE INTERSECTION OF NORPOINT WAY AND NE 53RD AVE STAMPED "TACOMA PUBLIC WORKS". THE MONUMENT IS THE SOUTHWEST CORNER OF SECTION 24, TOWNSHIP 21 NORTH, RANGE 3 EAST OF THE WILLAMETTE MERIDIAN. THE NORTH AMERICAN DATUM OF 1983/1991 (NAD 83/91) GRID COORDINATES WERE FOUND TO BE 108319.662 11257340.020 AT THAT POINT. THE INVERSE OF BOTH THE SEA LEVEL CORRECTION FACTOR OF 0.999981609 AND THE GRID SCALE FACTOR OF 1.000046679 WAS APPLIED TO THE GRID COORDINATES FOR SHOWN GROUND DISTANCES. ABBREVIATIONS: BLC BUILDING CORNER BSBL BUILDING SETBACK LINE C COMPACT CB CATCH BASIN CL CLASS CO CLEAN OUT COR CITY OF REDMOND D STORM DRAIN DDCV DOUBLE DETECTOR CHECK VALVE DI DUCTILE IRON DS DOWNSPOUT DTL DETAIL D/W DRIVEWAY EL ELEVATION ESMT EASEMENT EXG EXISTING FD FOUNDATION DRAIN FDC FIRE DEPTARTMENT CONNECTION FF FINISHED FLOOR FHY FIRE HYDRANT FL FLANGE JOINT H/C HANDICAP IE INVERT ELEVATION LF LINEAR FEET L/S LANDSCAPING MH MANHOLE MJ MECHANICAL JOINT OH OVERHEAD PL PROPERTY LINE R RADIUS REF REFERENCE DRAWING R/W RIGHT-OF-WAY S SANITARY SEWER SQ FT SQUARE FEET STD STANDARD S/W SIDEWALK T TELEPHONE TC TOP OF CURB TP TEST PIT TV TELEVISION U.N.O UNLESS NOTED OTHERWISE YL YARD LIGHT S SOUTH W WEST E EAST N NORTH NW NORTHWEST SW SOUTHWEST NE NORTHEAST SE SOUTHEAST O DIAMETER LEGEND DESCRIPTION NEW EXISTING STORM SEWER D - - - D - - - SANITARY SEWER S - - - S - - WATER W - - -W- - - CONTOURS 50 - - - 50 --- SILT FENCE F POWER (OHP/UGP) - OHP/UGP - OHP/UGP ASPHALT PAVING PERVIOUS CONC. CONC. PAVING GRAVEL SURFACE 0 LANDSCAPING CONCRETE CURB SPOT ELEVATIONS xx.xx XX.XX PARKING COUNT O FOUND CASE MON FIRE HYDRANT GAS METER 13 O❑ GUY WIRE ANCHOR E- JUNCTION BOX m ❑ PARKING LOT LIGHT POWER POLE W/TRANSFORMER o POWER VAULT ROCKERY cDoc:)a C:E= SIGN T _LF SIGNAL POLE ci::-::--- STORM CATCHBASIN ■ ❑ STREET LIGHT TELEPHONE JUNCTION BOX ❑ TELEPHONE VAULT OT TD /-1n d UNDERGROUND POWER © UTILITY POLE + -o- Pa i UTILITY MANHOLE O WATER METER 6 WATER VALVE N w J m 0 Q z r D m Ur Q u W z N L^ � x WW �W Z M L 1` W J O ti `'' M lL'7 Uwe U Ln cm i J w _ a U a Q Q) U a I-_ LU W cn 2 H co ch G LU z c Q z � 0 Cl •� z W LU z (/) �--� LUiz J w 0 L w w W (/) 0 0 CV N = o z 0 a Z w U 2E LU o o U U w w a U) z 0 S2 w Of AS'A�� ital I dam E. Paul cn=/@ rTi E. o=AP sultin ngin PLLC, ou, 43'�atej201r,,,2 3:11-07'00' � 3j EV,tiONXL DATE 02/04/2020 PERMIT NO.20-100499-00-SU DRAWN Ps CHECKED AEP JOB NO. 2019068 SHEET NO. APPROVED c 1 DATE © AP CONSULTING ENGINEERS PLLC 2019 C) o FOUND PUNCH ON 2" BRASS TAX PARCEL 0114700320 DISC, INCASED, AT THE INTERSECTION OF 25TH AVE SW AND SW 346TH STREET. I DRIVEWAY SW IMTH/STREET Nff30'45"W 139.56' I DRIVEWAY SDCB / / / I / �/ 7- I ---I INSTALL CB PROTECTION // / I _ _ PER KCSWMM FIG D.2.3.5.EIF I LOT 14 II ZONE RS/ 7.2 1 24' 24' / I TAX PARCEL 0114700130 FOUND "X" ON/2" BRASS DISC,/ / II -/ INCASED, IN Th CENTERLINE _- -- - - OF 25TH AVI/ SW.Ln �4022-603 / / L- ZD L co LOT 12 (PEMAINDER) I \\ = ICN/ I \ Ln S89°08' 19 ",E 139.56' I 1 CV - -7 - - - - 1- - - 145.5Z'- � I l LOT A I \ / /CITY OF FEDERAL WAY BLA NO.15-103833-PO-SU ZONE RS 7.21 G TAX PARCEL 9574800015 INSTALL CONSTRUCTION ENTRANCE '-PER KCSWMM FIG D.2.1.4.A REPLACE EXG CURB DROB WITH NEW DRIVEWAY ENTRANCE TAX PARCEL 9574800010 EXG JUNCTION BOX TO BE RELOCATED. CONTACT UTILITY. CURB DROP \ 0000000 g' 0000000 WM S89°30'43"E 101.41' _?0000000c _ m_CJB 51.96' l00000000 17" DECIDD S �oa0 - 0 0 o o 49 000000jo 45 / 6" FIR 10" FIB /6" CEDAR FIR o TREES TO BE REMOVED " \ INSTALL o\ FILTER FENCE PER \ KCSWMM FIG D.2.1.3.A o w \ 00 TREE TO BE REMOVED 0- CD o \ g o � \\ 13" ALDER 0 N o - o J N =D w CD U =r o Q 0 0 0® Q �13" ALDER 11" ALDER+° `- o v �s°t% � 10" ALDER w N �, - 13" EDARI - m 2" ALDER ,off a Ic -°r 12 ALDER g •=� _ 77 GATE N89 29 34 W i I LOT 12 I I I zn.uu \ EASEMENT \ 6599254 LOT B CITY OF FEDERAL WAY BLA NO.15-103833-00-SU ZONE RS 7.2 LOT 11 I UTILITY CONFLICT NOTE: THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION, DIMENSION, AND DEPTH OF ALL EXISTING UTILITIES, WHETHER SHOWN ON THESE PLANS OR NOT, BY POTHOLING THE UTILITIES AND SURVEYING THE HORIZONTAL AND VERTICAL LOCATION PRIOR TO CONSTRUCTION. THIS SHALL INCLUDE CALLING UTILITY LOCATE @ 1-800-424-5555 AND THEN POTHOLING ALL EXISTING UTILITIES AT LOCATIONS OF NEW UTILITY CROSSINGS TO PHYSICALLY VERIFY WHETHER OR NOT CONFLICTS EXIST. LOCATIONS OF SAID UTILITIES AS SHOWN ON THESE PLANS ARE NOT GUARANTEED AND ARE SUBJECT TO VARIATION. IF CONFLICTS SHOULD OCCUR, THE CONTRACTOR SHALL CONSULT AP CONSULTING ENGINEERS PLLC TO RESOLVE ALL PROBLEMS PRIOR TO PROCEEDING WITH CONSTRUCTION. 27.41 ' I-- N00°41'07"E 12.00' /A SITE BENCHMARK ELEVATION: 427.02 FEET 5' UTILITIES & DRAINAGE EASEMENT RECORDING NO.6599254 N TESC & DEMO PLAN - I SCALE: 1 " = 20' SCALE 1" = 20 FT 0 10 20 40 60 UNIT OF MEASUREMENT IN US FEET 5' EASEMENT FOR UNDERGROUND ELECTIC SYSTEM PER RECORDING NO.6492316 I� 0 N 0 0 0 EXG FENCE TO BE REMOVED EXG 6.0' WOOD FENCE TO BE RELOCATED TO EAST PROPERTY LINE 1 � 49.45' / J8 2 4"W 76.,'6' EXG FENCE TO BE RELOCATED ALONG REAR PROPERTY LINE DRIVEWAY ALDERWOOD SOUTH DIVISION N0.2 LOT 15 ZONE RS 7.2 TAX PARCEL 0114700150 LIMITS OF DISTURBANCE TOTAL AREA DISTURBEED=15,579 SF (0.36 AC) TAX PARCEL 9574800005 ZONE RS 7.2 LOT B CITY OF FEDERAL WAY BLA NO. 19-103970-00-SU EROSION/SEDIMENTATION CONTROL NOTES: 1. APPROVAL OF THIS EROSIONISEDIMENTATION CONTROL (ESC) PLAN DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (I.E. SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS, CHANNELS, RETENTION FACILITIES, UTILITIES, ETC.). 2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE APPLICANT/CONTRACTOR UNTIL ALL CONSTRUCTION IS APPROVED. 3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED IN THE FIELD PRIOR TO CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE FLAGGED CLEARING LIMITS SHALL BE PERMITTED. THE FLAGGING SHALL BE MAINTAINED BY THE APPLICANT/CONTRACTOR FOR THE DURATION OF CONSTRUCTION. 4. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED IN CONJUNCTION WITH ALL CLEARING AND GRADING ACTIVITIES, AND IN SUCH A MANNER AS TO INSURE THAT SEDIMENT LADEN WATER DOES NOT ENTER THE DRAINAGE SYSTEM OR VIOLATE APPLICABLE WATER STANDARDS. 5. 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 (I.E. ADDITIONAL SUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.) AS NEEDED FOR UNEXPECTED STORM EVENTS. 6. THE ESC FACILITIES SHALL BE INSPECTED DAILY BY THE APPLICANT/CONTRACTOR AND MAINTAINED AS NECESSARY TO ENSURE THEIR CONTINUED FUNCTIONING. 7. ANY AREA STRIPPED OF VEGETATION, INCLUDING ROADWAY EMBANKMENTS, WHERE NO FURTHER WORK IS ANTICIPATED OR A PERIOD OF 15 DAYS, SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC METHODS (I.E. SEEDING, MULCHING, NETTING, EROSION BLANKETS, ETC.) 8. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN 15 DAYS. 9. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN THE 48 HOURS FOLLOWING A STORM EVENT. 10. AT NO TIME SHALL MORE THAN ONE FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 11. STABILIZED CONSTRUCTION ENTRANCES AND WASH PADS SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES MAY BE REQUIRED TO INSURE THAT ALL PAVED AREAS ARE KEPT CLEAN FOR THE DURATION OF THE PROJECT. 12. WET SEASON REQUIREMENTS AS DESCRIBED IN APPENDIX D, SECTION D.5.2 OF THE KCSWDM ARE IN EFFECT BEGINNING OCTOBER 1 THROUGH APRIL 30. 13. ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE PERMANENT FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION OR DISPERSION SYSTEM, THE FACILITY SHALL NOT BE USED AS A TEMPORARY SETTLING BASIN. NO UNDERGROUND DETENTION TANKS OR VAULTS SHALL BE USED AS A TEMPORARY SETTLING BASIN. 14. WHERE SEEDING FOR TEMPORARY EROSION CONTROL IS REQUIRED, FAST GERMINATING GRASSES SHALL BE APPLIED AT AN APPROPRIATE RATE (I.E. ANNUAL OR PERENNIAL RYE APPLIED AT APPROXIMATELY 80 POUNDS PER ACRE). 15. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED AT A MINIMUM THICKNESS OF TWO INCHES. 16. MANAGEMENT PRACTICES PROVIDING SIGNIFICANT TREE PROTECTION SHALL BE PROVIDED PER SECTION 22-1568 (C) (6) (A-G) OF FWRC. CONSTRUCTION SEQUENCE: 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY, A PRECONSTRUCTION MEETING MUST BE HELD BETWEEN THE CITY OF FEDERAL WAY, THE APPLICANT AND APPLICANT'S CONSTRUCTION REPRESENTATIVE. 2. FLAG CLEARING LIMITS. 3. INSTALL STABILIZED CONSTRUCTION ENTRANCE. 4. INSTALL FILTER FABRIC FENCE AS INDICATED ON PLAN. 5. INSTALL OFFSITE CATCH BASIN PROTECTION. 6. CLEAR AND GRUB AREAS OF THE SITE TO BE ROUGH GRADED OR FILLED. 7. ROUGH GRADE SITE AND INSTALL STORM CONVEYANCE SYSTEM AND RETENTION/DETENTION FACILITIES WHERE REQUIRED. PROVIDE INLET PROTECTION WHERE INDICATED. 8. INSTALL REMAINING UTILITIES AND BUILDING. 9. FINISH GRADE SITE AND CONSTRUCT ASPHALT PARKING AREAS AND ACCESS DRIVES. 10. COMPLETE SITE STABILIZATION IN ACCORDANCE WITH CITY STANDARDS. 11. CLEAN STORM DRAINAGE SYSTEM, ON AND OFF SITE, OF ALL SEDIMENT AND DEBRIS. 12. REMOVE TEMPORARY EROSION CONTROL FACILITIES WHEN SITE IS COMPLETELY STABILIZED _ "Ilk 0 U a Q L U a i 8i W Q LU ILL O � O W O W Z U) m _ H M w U) X o Nt C14 z_ z Of `J � z z O � Q z L L L U L � G LU •--• J Jof L L w w 0- 06 w o o a CV N Lo z o p a Z � w U w Of W O U H U w d N Z O W w 1,N E . p A �UN DigitII a E. Paul ��11a =ng AP •�� ngE eer LC,ou, EPau PCo iltingEn Paul °m,`- s GISTV- ag9' 1 ONAL I DATE 02/04/2020 I PERMIT NO.20-100499-00-SU DRAWN PS APPROVED CHECKED AEP JOB NO. 2019068 SHEET NO. C2 DATE