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HomeMy WebLinkAboutReport 10 0 CITY OF RENTON DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT MEMORANDUM Date: June 22, 2010 To: City Clerk's Office From: Stacy M Tucker Subject: Land Use File Closeout Please complete the following information to facilitate project closeout and indexing by the City Clerk's Office. Project Name: Wilkins Wood Preliminary Plat LUA (file) Number: LUA-10-024 Cross -References: King County File #L99P3010 AKA's: 9 Project Manager: Acceptance Date: Applicant: MJF Holdings Inc Owner: MJF Holdings Inc/Dreamcraft Contact: Mike Romano, Centurion Development PID Number: 0088000400 ERC Decision Date: ERC Appeal Date: Administrative Denial: a Appeal Period Ends: Public Hearing Date: Date Appealed to HEX: By Whom: HEX Decision: Date: Date Appealed to Council: By Whom: Council Decision: Date: Mylar Recording Number: 20051213000250 Project Description: Wilkins Wood Plat recorded at KC. Limited file was transferred to City from KC after annexation. 1.53 acre subdivision. 10 -lot Plat with two tracts and storm pond located at 113th Avenue SE and SE 167th Court. Water and sewer is Soos Creek. Storm and streets in City. KC File #L99P3010 / KCR# 20051213000250 9 Location: 16613 113kh Avenue SE Comments: King County Department of Development and Environmental services Inspector's Daily Report 9W Oakesdale Aveiwe Southwest Renton, WA 98055-1219 Project No.: Activity No.:_ Project Name: Location: Developer/Contractor: Date Signed REPORT Note: Each entry must be dated and signed STomwV>srmA Fa wMa% N&Fm-01-16-2001 Lig King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, VVA 98057-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov June 15, 2007 Centurion Development Services Attn: Mike Romano 22617— 81h Drive Southeast Bothell, Washington 98201 RE: Project Name: WILKINS WOOD Project No.: L99P3010 Activity No.: L04SI161 Dear Mr. Romano: An inspection of this development was made by the Land Use Inspection Section. Based on that inspection, the enclosed punch list of construction deficiencies was prepared. Within fifteen (15) working days of the date of this letter, please contact the inspector (name and phone number at the bottom of the page) with the schedule for completing these items and indicating when work will begin. When all items are completed, please call for a follow- up inspection. If you have any questions or problems that the inspector cannot resolve, please call me at 206 296-7234 or write to the Land Use Inspection Section at the address above. Sincerely Jeff Pray, Senior Engineer Land Use Inspection Section Enclosures: LUIS Performance Punch List cc: Tim Cheatum , Engineer Inspector's Phone No.: 296-7232 Financial Guarantees Management Unit Department of Transportation, Road Services Division COORUCTION INSPECTION PUNCI I L, for Roads, Drainage, and Erosion Control Facilities Punch List Date. lune 8, 2007 Project Name: Wilkens Wood Project No.: L99P3010 Activity No.: L04SI161 Activity Type: INSPCT-P Location: 16613 1 13`h Ave SE The Land Use Services Division has a computer tracking system that uses project and activity numbers. Please refer to both the project and the activity numbers when inquiring about this project. 2 This official punch list is valid for 30 days. Changes will not be made within the 30 -day limit without the expressed review and approval of the Senior Engineer, Land Use Inspection Section. Any extensions to the 30 -day limit must be approved by the inspector. Deviations from this policy should be reported to the Senior Engineer at (206) 296-7236. 3 Computer generated punch lists may appear to be missing punch list items because they are not numbered 1, 2, 3, 4, 5, 6, ...etc. This is not a mistake, but due to the way the computer stores the standard conditions listing. 100 STORM DRAINAGE SYSTEM: 101 Flush all storm drainage lines and clean out all catch basin/manhole sumps. including any retention/detention systems. I03 Attach ladder in CB 1. 104 Remove sediment build-up from the retention/detention system. 106 Install a trash rack on the inlet of pipe of the control structure 107 Pump out the water in the Control Structure so that underground inspection can be performed, coordinate with the inspector 109 The clean-out gate on the control structure does not close correctly, repair or replace as needed. 112 Add locking bolts to all catch basins, exception to this are rolled curb grates. 113 Grout cracking all around interior of CB 15. Remove cracked grouting and replace. 114 Clean ditch following trail system from project to the north. Re -vegetate with low growth grass seed mix. 115 Re -grade ditch so that it matches slope of approved plans. Page 1 of 7 Print Date: 06/08/2007 CONDUCTION INSPECTION PUNCH 1_,ISOor Roads; Drainage, and Erosion Control Facilities for Project Number; Punch List Date; June 8, 2007 116 Remove debris place in ditch across street from 16463 113`t' Ave SE 117 Remove debris from ditch on west side of 113"' Ave SF,, Re -vegetate with appropriate bio-swale seed mix. 118 Clean sediment deposition from RID pond 119 Cut south inflow pipe (outfall, CB 1) 45 degree angle. 120 Install drainage retention/detention facility sign. 121 Verify the pipe inverts entering and exiting the detention pond are constructed per the approved plan. 122 Grout on ecology block wall in pond cracking off. Clear wall of cracked grout and re - grout. 123 Complete grouting of ecology blocks. All seams and joints are to be grouted. 124 Per approved plans, use mortar to reach elevation of 464.00 on the W.S. Water Quality elevation.. 125 Clean grout off ladder in Control Structure. 126 Install trash rack on inflow to Control Structure. 127 Per WSDOT standards for Type 1 Fence, the maximum clearance Linder fence is 2'', adjust accordingly. (Copy of Standards Attached) 128 Submit geotech report for the installation of pond liner. 129 Backfill end ecology block so that it matches slope of pond. 130 Provide verification (per Retention / Detention Facilities "In Operation" Requirements by Public Rule) by a licensed surveyor (LS) or professional civil engineer (PE) as follows: a. Dimensions (LS) b. Required and actual volumes (live and dead storage) (LS) c. Elevations (LS) d. Easement/tract corners surveyed and staked (LS) e. Berm embankments fully completed (PE) 131 Verify the pipe inverts entering and exiting the detention pond are constructed per the approved plan. Page 2 of 7 Print Date: 06/08/2007 140 141 CON *UCTION INSPECTION PUNCII LI or Roads, Drainage, and Erosion Control Facitities for Project Number: Punch List Date: ,June 8, 2007 Remove the following poisonous vegetation and/or noxious weeds: Tansy Ragwort: http://dnr.metrokc.gov/wlr/lands/weeds/ragw-ort.him Purple Loosestrife: http://dnr.metrokc.gov/wlr/lands/weeds/Istrife.htin Reference: Surface Water Design Manual Appendix A Remove all evasive plants from pond area and replant R/D pond with low growth seed mix. 200 ROADWAYS AND PARKING AREAS: 202 On NW corner of 113`" Ave SE and SE167"i Ct, Remove the asphalt and repave where marked with orange paint. 205 Seal all asphalt joints. 206 Install monuments. 207 Seal around all monuments. 207 Stripe the road and/or intersections per the approved plans, contact Morgan Wong at the King County Department of Transportation at (206) 296-6596. 211 Newly installed power pole adjacent to curb on SW corner of 113"' and SF 167" CT is within 10 feet of rolled curb, making it a roadside obstacle. 220 Side slope on south side of SE 167'" Ct do not have a 3:1 slope as shown on approved plans. Build road to approved plans, or propose change to correct problem. 300 SIDEWALK, CURB AND GUTTER: 301 303 304 305 306 307 Clean and sweep all sidewalks and curbs. Replace broken sidewalk and/or curb where marked with orange paint. Correct ponding in the curb where painted with orange paint. Fill behind all areas of sidewalk to provide a smooth transition. Curb on north side of Tract A appears to have reverse flow, adjust grade as needed. Grind out grout that was spilled in curbline. Page 3 of 7 Print Date: 06/08/2007 CONDUCTION INSPECTION PUNCH LISOor Roads, Drainage., and Erosion Control Facilities for Project Number: Punch List Date: June 8, 2007 308 Score large panels to meet 1993 KCRS 3.04 309 Remove plastic from truncated domes. 310 Adjust reverse slopes on curbline so that all water will drain to Catchbasins. Observed on north side of SE 167"', just west of CB I and North side of Tract A, just north of C138. 400 OTHER COMMENTS: 401 Outstanding Design Plan Changes must be addressed before Final Construction Approval can be issued. Please address the following outstanding design plan changes: L07PCO58 408 Final Corrected Plan Street Names do not match the recorded plat (or proposed final plat). Correct street names on the Final Corrected Plan. 410 Re-establish 5 foot gravel trail where it transitions from asphalt to gravel. 411 Fix extruded curb where marked with orange paint. 412 Repair ends of extruded curb were broken. 413 Re -gravel driveway entrance at 16463 113`x' Ave SE. 460 Landscaping, recreational equipment and street tree inspections will be handled under a separate punchlist. Please contact the inspector for details. 500 SPECIAL CONDITIONS: 502 Stabilize all denuded areas by vegetating, seeding and mulching or better. 800 NON CONSTRUCTION RELATED REQUIREMENTS: 801 FINAL CORRECTED TECHNICAL INFORMATION REPORT AND/OR FINAL CORRECT PLANS: The Revised Code of Washington 18.43 and the Washington Administrative Code 196 require all plans, specifications, plats and reports (including any changes) be prepared, signed, dated, and stamped by a licensed engineer. 804 A FINAL CORRECTED TECHNICAL INFORMATION REPORT (TIR) REQUIRED: The applicant shall supply two (2) copies of the corrected TIR to this office. The FINAL CORRECTED TIR will reflect any drainage design plan changes. If no drainage design plan changes were approved, copies of the original TIR are acceptable. Copies of the TIR shall be marked "FINAL CORRECTED TIR". One copy will be kept by DDES and one will be forwarded to the Ding County Department of Natural Resources for permanent record keeping. Page 4 of 7 Print Date: 06/08/2007 CONIOUCTION INSPECTION PUNCFI LISoor Roads, Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June 8, 2007 806 A TWO YEAR MAINTENANCE AND DEFECT financial guarantee warranting the successful operation and maintenance of RIGHT-OF-WAY improvements and/or DRAINAGE FACILITIES, and guaranteeing the workmanship, materials and design used in the construction of the improvements and/or facilities is required. Please contact the Financial Guarantee Management Unit (FGMU), at (206) 296-6659, to obtain the proper forms. DO NOT SUBMIT THIS FINANCIAL GUARANTEE UNTIL ALL OTHER CONSTRUCTION PUNCHLIST ITEMS HAVE BEEN ADDRESSED, THE TWO YEAR MAINTENANCE AND DEFECT PERIOD SHALL NOT BEGIN UNTIL FINAL CONSTRUCTION APPROVAL OR RECORDING, WHICH EVER 1S LAST. The amount of this guarantee, (25% of the total costs (including a 30% contingency and mobilization factor) for existing right-of-way and future public road improvements and drainage facilities as shown on the financial guarantee worksheet) is: S 53,041 812 DRAINAGE FACILITY LIABILITY POLICY (KCC 9.04. 100) Any person required to construct a drainage facility (except downspout roof drain infiltration systems) shall maintain a liability policy in the amount of $1,000,000 which shall name King County as an additional insured. This policy shall remain in effect until construction approval or acceptance for maintenance, whichever is last. THE POLICY FOR THIS PROJECT MUST NOT EXPIRE BEFORE THE FINANCIAL GUARANTEES ARE RELEASED. THE POLICY MUST BE EXTENDED TO CONFORM TO THE KING COUNTY CODE DESCRIBED ABOVE. 814 INSPECTION FEES: After all other punch list items have been approved by the inspector, a Summary of Charges and Payments will be provided to you. Final Construction Approval can not be granted until the indicated fees are paid. NOTE: The Summary of Charges and Payments is not a final fee determination, additional charges may appear after Final Construction Approval. All outstanding invoices must be paid before any Financial Guarantees can be released. In order to avoid delays in processinIZ, please notiA, the inspector when fee payment has been made. 840 Provide a certification, by a professional land surveyor, that the survey monuments have been set as shown on the final plat documents. This requirement is for PUBLIC roads only. Page 5 of 7 Print Date: 06/08/2007 CONDUCTION INSPECTION PUNCH LlSoor Roads, Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June S, 2007 990 FINAL CORRECTED PLANS: FOR ALI, PUBLIC IMPROVFMENTS Submit a complete set of archival quality mylars. Mylars shall be photo mylar or ink-on- mylar, minimum 4 mil thickness_ In addition, one (1) blue -line copy of the complete construction plan set is required. All plans must reflect all Minor and Design Plan Changes. The blue -lines must have all Minor and Design Plan Changes highlighted in green. The mylars will not be returned. If the consultant engineer desires copies for his/her records, copies must be made before submittal. Mylars and blue -line drawings shall not have shading or adhesive additions in any areas. 996 FINAL CORRECTED PLANS, REPLACEMENT MYLARS: When the originally approved mylar is not submitted as the FINAL CORRECTED PLAN, additional review of the replacement mylar will be required. The Plan or "P" number from the original mylar shall be shown on the replacement mylar. 1000 Inspector: Tin heat m Phone: (206) 296- 7232 Signature: i<)(L` z"�r` CA- ,Al V'lt Page 6 of 7 Print Date: 06/08/2007 CON*UCTION INSPECTION PUNCH LI or Roads, Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June 8, 2007 sr. PwTM EIw4 pals w mmr paN L°"'� Pw11 pwt Top roll Glrw. Tql rvl I Frbrly Inaln , In TLer Ir fall � N-wa tall Tarwlrl Yl re ^� • T.I. Fs, e.Y herNp malow L1M ■!m pr cab. 1p>•+ r Y.er'lwr P.■r CHAIN LINK FENCE TYPE 3 L Tatl iM N .arrr P• 1F+oa■ . �F. v w■+ "' �^ PYI I MUFFIN 3■Ingp Tr.fm .Ir thein Ilrt imrl Vl'Q F"_-- 9IM�er tall 1'wtrlPhurd Brma Earl CHAIN UNK FENCE TYPE 1 GIN— We Pr1 ye■ ltrr r ° P 1 1 P.z1 EAd, 1erG V e post `ip l_N Int $44 KI Too veli C.I. I1.1 +.tri. id► n11 rmrre F..1 r HArN LINK FE■LE TTFE 5 !j f' R,I I rat rn Irm Tmrra Eters Irapa el rwle Imr■ RAIL AND ENO, URNEir AND PLL -L PMI unALE xra,al.,• RILL FORMED SECTIC10 1� r r ,' RWrn �trreaa■ L1ne trL1nF tr —pp LIKE POET F...r &me ■Mai Mr1.d Lnd hdrhd r Grar Prr+ R,I I rat rn Irm Tmrra Tdr lin erre W— WME FUll. 1 TV PAIL el* ban xra,al.,• END. CORNE1. a MLL rwr cv3 PaaT bm PE R!YIYG . I h,la F..1 old Mr■N IFEOLUN NLLl FIRWO "4�I F+ITo� ROUND CHL(N UNA FEKCE TYPE 3 CHAIN LINK FENCE wnaj RI I sr.r.f., rw'bmr stall 0. lF� .I nlnla dl....1.•. Too r Ir.rnF. tlr.la, i1.r1rtrI1 h. N-1 .1thln 11..ar1. _.- wwla-a r11d11rwmt ova mel I mt Ilnit FFrinre sw dwlgl w at W. las vC ars Prrtl alar 7.w Y3a.. Page 7 of 7 Print Date: 06/08/2007 CHAIN LINK FENCE L - a - . Ih— MEMBER WME FUll. 1 TV PAIL LINE a nlu POSE END. CORNE1. a MLL rwr cv3 PaaT ILL PE R!YIYG H-taLU31Y WLL TURNED Ra" IFEOLUN NLLl FIRWO ROWID 19LL IUMB ROUND PI■Ta wlyd NII�rF IYld.r I.P. a•Ia.1 Y,11M Yil*1 FYryrF a. rVA [-h. ealeM P1P I Fm1 ah. rr Iml a14 [� rl • a.e err F.r Els rr klry Fr Fm/ Gla. w rwr mI nit rwr 10'r 1 Z.rA1 unihm1 4Pwrbl 13rl.rwl 1whsl t)1MeF IregWP JIF4d0l FI'.nbl llmlm! eFta.,sl l Erdmo 1rWr.Y1 rW_) FFe.sl rG,.r�l c,r., lea r VA a -R LK Y 1% "A IJ■ ■ 3.121 UA 1.G 1% . LIE e.3a P,t a -n ;4 w iN 0-1e alh 9.1 a' -M' 3 Lad LIT A R i% 1.R g, z LKI 1,71 1 16 11.11 Lp 1.12 L% z IF. 1.11' L i,w E.LA 31'. a-3 ■'a" a 1% z.[T I'/ s fY 1.35 % ■ L% F. Ifs E -Pa 31L 1.71 % z LK, 3-0 1 3.0 3V, a U FAA ]FF e.L 3'-■" ■ lyq z.n I'/[ . 1% 3.]■ % r M41 I,40 1 It I I.r I rA 1 4.1 % : L% :.ee ny I 3.n 1%.Ml L. 7K P.1 t' -i" Page 7 of 7 Print Date: 06/08/2007 CHAIN LINK FENCE L - a - . Ih— Web date: 09/09/2005 CERTIFICATION & TRANSFER OF APPLICANT STATUS King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 For alternate formats, call 206-296-6600. 206-296-6600 TTY 206-296-7217 Permit Number: FOR CURRENT OWNER: I, , (print name) hereby certify that I am an/the owner of the property which is the subject of this application for permit or approval. If I am not the sole owner of the property, I certify that I am authorized by any and all other owners of the property to make this certification and transfer any an all rights I/we have to apply for this permit or approval to the person listed below. I, therefore certify that (print name) is the "applicant" for this permit or approval and shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. By being the "applicant," that individual assumes financial responsibility for all fees and will receive any refunds paid. I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. Signature of Owner Date Signed FOR INDIVIDUALS: I, , (print name) hereby certify that I am the "applicant" for this permit or approval. I shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. I accept financial responsibi_i_ity_for all fees associated with this permit or approval and will receive any refunds. My mailing address is: I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. Signature of Applicant OR FOR CORPORATIONS/BUSINESS ASSOCIATIONS: I, Date Signed , (print name) hereby certify that I am an authorized agent of , a corporation or other business association authorized in the State of Washington and that this business association is the "applicant" for this permit or approval and is financially. responsible for all fees and will receive any refunds paid. This association shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. The mailing address of this business association is: certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. Signature of Applicant Date Signed CertAndTransferApplicantStatusFORM.doe lc-cer-trapstat.pdf 09/09/2005 Page i of 2 NOTICE TO APPLICANTS: By law, this department returns all engineering and other plans to the applicant. If. however, you wish to authorize the department to return engineering and other plans directly to the engineer, architect, or other consultant for the limited purpose -of making corrections, please designate below: ❑ I authorize this department to return plans directly to my consultant(s) for the limited purpose of making corrections, as designated on this form. CONSULTANTS: Check out the DDES Web site at www.metrokc.aov/ddes GertAndTransferApplicant5latusFORM. doc lc -Ger trapstat.pdf 09/09/2005 Page 2 of 2 0 mm 4 mioi.uz) vsn :.ka w vda o o as :i O c p J w s NW IL 4 W a a JH d E w Z d p uy >wx w w � �1 j WWa J ^ � N ' o P W a O K w w � [J w 6 Z R O ¢ N u 7 r O m � m W �1 j WWa J ^ � N ' o P l J Meins, Mike From: Cheatum, Tim Sent: Tuesday, December 04, 2007 11:17 AM To: Meins, Mike Cc: Lux, Sheryl Subject: FW: L05Sl249/L07PC058 Mike; • This project is Wilkens Woods Street Trees. As you are now the current inspector, I am forwarding this to you per Sheryl's request. From: Lux, Sheryl Sent: Tuesday, December 04, 2007 8:05 AM To: Cheaturn, Tim Subject: L05SI249/L07PC058 Code Enforcement received a complaint from Jerry & Rebecca Wilke (425-226-1405) about the contractor working this project and wants to speak with the inspector. Please forward this email to the correct person if it is not you or get back to me. ,x@, Code Enforcement Officer Phone: 206-205-1525 Fax: 206-296-5604 email: sheryl.lux@kingcounty.gov Work Schedule: Mon - Fri 7 am - 3:30 pm NOTE: I have a new email address of sheryl.lux@kingcounty,gov. The King County website is also changing to www,Kin Coupty.gov � o c k2 vii � r w w ¢ � m S m � n Q Z Z_p Oa@ m r W q E i53 AT .s E 22 2 S�E rnui -�U� mrt`m r o 0) Q E ARIL 'J .2 ❑a q w U N a Y - [V ? � r vii � r w w ¢ � m Wo-- n Q Z Z_p 0U Oa xn w � U 2 Z 0 W J N 2 q w U N a O ¢ n w S F C z F � 0 U a w ZVZ O � r Ww a4 LLa N F W a w U N [7 2 a� 0¢ 2 WWN F 1� C�/ J mqw S F C z F � 0 U a w ZVZ O � uLL �w nR aMo443 vsn axe NMMI W �' o z o LL Z = m w aLL'� IL oao o "� o ; V7 13 ° E 6 a ° _ 4 r " p h e 009 �� F� - x n�® w `$u w� F vni W 1 (J z N _ o o J Z Un. Y � � 7 m d p z n O U w wr WA i LLI { IL a w ta.u1 Ng 2 a2 1H -313H DlldgVd I'dAl1 OL -.l u z N WZ F ( dl.11 �1 F r � a Gm LL ¢ w U V � � W } J LL K oz u F U� W W • (i) King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TTY 206-296-7217 • Web date: 09/0912005 CERTIFICATION & TRANSFER OF APPLICANT STATUS �C � A!S �✓CJU,(� yl�G� For alternate formats, call 206-296-6600. PermitNumber: •D %/�% % l`�' a/ FOR CURRENT OWNER: I, , (print name) hereby certify that I am an/the owner of the property which is the subject of this application for permit or approval. If I am not the sole owner of the property, I certify that I am authorized by any and all other owners of the property to make this certification and transfer any an all rights i/we have to apply for this permit or approval to the person listed below. I, therefore certify that (print name) is the "applicant" for tnis permit or approval and shall rernalr; the. "applicant" 133 tiia duration of this pormlt or approval unless "applicant" status is transferred in writing on a form provided by this department. By being the "applicant," that individual assumes financial responsibility for all fees and will receive any refunds paid. I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. ANCi IJ`3F. I%,SP ' i ION SIPC HOPI Signature of Owner JUN Z 9 2007 Date Signed FOR INDIVIDUALS: 1i - C k i V D 1, , (print name) hereby certify that I am the "applicant" for this permit or approval. I shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. I accept financial resl2onsibility for all fees associated with this permit or approval and will receive any refunds. My mailing address is: LAND U -SE 11N8PFr�l(';,`,,i c!. -,J! I certify under penalty of perjury under the laws of the State of Washington that the foregAJLM correct. Signature of Applicant Date Signed OR , (print name) hereby certify that I am an authorized agent of A4 . T, i� /710 �I , yrvC - , a corporation or other business association authorized in the State -6f Washington and that this business association is the "applicant" for this permit or approval and is financially responsible for all fees and will receive any refunds paid. This association shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form prov ded by this department. The mailing address of this business association is: ill • T � /�G,Dii�i�. er.penaj /ofgerjury undefthe laws of the State of Washington that the foregoing is true and correct. Signature of Applicant CertAndTransferApplicant5tatusFORM.doc Ic-cer-trapstat.pdf 09109/2005 Date Signed Page 7 of 2 J NOTICE TO APPLICANTS: By law, this department returns all engineering and other plans to the applicant. If, however, you wish to authorize the department to return engineering and other plans directly to the engineer, archi*Ct, or other consultant for the limited purpose of making corrections, please designate below: E% [+� I authorize this department to return plans directly to my consultant(s) for the limited purpose of making corrections, as designated on this form. CONSULTANTS: J, A ,r-' : 1A -:L PA Check out the DDES Web site at www.metrokc._govIddes CertAndTfansferApplicantStatusFORM.doc le-cer-trapstat.pdf 09!0912005 Page 2 of 2 Oct 10 07 11,25a DMP, Inc. 253-333-2206 p.1 i DALEY - MORROW - POBLrTE, INC. .�saoCcr�rE�� ENGINEERING — SURVEYING — LAND PLANNING 726 Auburn Way North PHONE: (253) 333-2200 Auburn, WA 93002 FAX: (253) 333-2206 FAX TRANSMITTAL Date: G - d i From: om r Fax- Number: /'�4 3 ZfG - 7/ 7`!.__ No. of Pages (including cover sheet): Z� Comments: r The information contained in this facsimile is intended for the use of the addressee only. If you have obtained this facsimile in error, please notify the sender by telephone;_ this communication should no be copied or distributed unless otherwise specified. Thank your If you do not receive all pages, please call (253) 333-22M Oct 10 07 11 26a DMR Inc. • 0 King County Department of Development and Environmental Services Land Use Services Division 400 42kesdale Avenue Southwest R=ton. Washington 9$055-1214 (206) 296-6600 TTY (206) 296-7217 253-333-2206 p2 0 Land Surveyor's Certificate of Monumentation Alternative formats available upon request 3, & u4� HQiz.�,�� a registered professional land surveyor in the State of Washington, do hereby certify that all the monuments depicted on final plat known as W/jktzy.5 _ICVcz'o _ in Section Z5' Township " N., Range _,�— E., W.M., in King County have been set as indica*ed on said final plat by me or under my directions and that all angular and distance measurements indicated on said plat, as well as any other survey data thereon, have been found to be correct, true, and accurate. Signed this day200- VU i M w+ ;�e� State of Waslvn oa County of Ieenify that I lmow or have satisfactory GYlUGUL"G ulat slgnoa this instrument and acknowledged it to be (his/her) free and voluntary act for the uses and purposes mentioned in the instrument. Land Sut'veyaes Certificate of M nwnentabon Date: Qc /D Signature of Notary Public: --' Title: A1.0 .¢ ".4, i My appointment expires. is 1s • .08 lecer-monument 11/06101 Page 1 of I C r Fax Cover Sheet ' MRA6 Cprprrtl� 0 Cuttingedge Development, Inc. 29224 181't Ave. S.E. Kent, WA 98042 Off: 253-631-7600 Fox; 253-639-8877 Send to: King County Land Use From: TP Attention: Mike Meins Date: December 11, 2047 Telephone Number: 206-296-6679 Fax Number: 206-296-7174 RE: Wilkins Wood Pond Liner Total pages, including cover; 13 Comments: Mike, Derek asked if l could fax this letter and details in regards for the reasoning for not putting in a pond liner. Please feel free to call me if it doesn't come thru clear enough or if you have any questions. You can reach me on my cell at 206-255-4839. Thank you, JP Estirnator **" IMPORTANT NOTICE*** THE INFORMATION CONTAINED IN THIS COMMUNICATION IS INTENDED FOR THE USE OF THE ADDRESSEE AND MAY CONTAIN PERSONAL AND CONFIDENTIAL INFORMATION, UNAUTHORIZED USE, DISCLOSURE OR COPYING 19 PRO11191TEb AND MAY BE UNLAWFUL . IF YOU RECVVED THIS COMMUNICATION IN ERROR, PLEASE NOTIFY US EMMED LATELY AT 253-631-7600. 4'd ZZ886;9 Z 11N]Nd07�]/1]a 30a3JNw-nO d6VE!, ZO LL 080 'U TTI NG EDGE DEVELOPMENT INC. tl� i i;lon, WA 980-12 :e: i ,ah Tev1 l.e�}xlrl Mh,cnson, Natiae Pond 0.1,11eTiai ktt 1R.rek 1S W,, L e tOd .tie' luiv' per(oi med 1110, f(Pl'm. int, tesgs) On the sample refetaACt1.d be lO-W. Th'� lvd% i7e'tlo111led in 1�LLI)LdaI14c s.iile t•urtrnt appliial�lc AASI-1TO or ASTM standard As iluiicated below. "Che' Ersults abtAine•d itx our .ti'IlydtOl% A1-0 AS f( -,11O S: ❑ Fest(s) Performed: 5ir•� 4• :'in�t13•� i� I est Results SMAeRS ENGINEERING $ TECHNICAL INSPECTION TESTING SERVICES SEOTeCt+t,IZAL ENCINEERII.'G COr15TRUC'ION MATERI.7iS ENGINE=RING �-C•NSTRUCTIOOPROJECTMANAGELIENT SPEGI.�LIZING IN ROADS & BRIDGES Dd:e: .i 9-I('06 l'•'o '+it IN't1l;P.;1SOlt, loo 1, 113th t1L'2 rPllte+n File #: ix�l)c)4-4ltl SERVICES HT`F'lM1VfJ4 SPEhRE-E WGINEERING.COIC ❑ 'U TTI NG EDGE DEVELOPMENT INC. tl� i i;lon, WA 980-12 :e: i ,ah Tev1 l.e�}xlrl Mh,cnson, Natiae Pond 0.1,11eTiai ktt 1R.rek 1S W,, L e tOd .tie' luiv' per(oi med 1110, f(Pl'm. int, tesgs) On the sample refetaACt1.d be lO-W. Th'� lvd% i7e'tlo111led in 1�LLI)LdaI14c s.iile t•urtrnt appliial�lc AASI-1TO or ASTM standard As iluiicated below. "Che' Ersults abtAine•d itx our .ti'IlydtOl% A1-0 AS f( -,11O S: ❑ Fest(s) Performed: 5ir•� 4• :'in�t13•� i� I est Results Test(s) Performed: Test Tze"AlUs Nv S}�etis ❑ :ltterbrrg Linlila ❑ i ?ti•.iroa.a•.�'r r.al_,'s�s ❑ Permeal+ilits•.5:lis a� .'lays ❑ P.'r>titni ❑ Permoal flit- Sands Sand .;.gtUiv Al ,tit ...__ E] �❑ Sre''Ific\,rivet\"• 50tk1 ❑ l.. \. A\'nlswn Suri itf;racitL,C'na1S.' ❑ •'K" V.15DOT Cognidation ❑ t.i HK 'i;,ht M' -LO• ❑ WSDOTTopsoil A:wlw•sis 'hE' llrltI }�und material haS 24 ti fines passing the 42DO screen and good +_•ohesiort with they silt ionteni. This rnatariaF Fill pe'rfortn saeisfactardv els a pond liner when compacted in place. During each visit to tht, jo'o site, we have 11 L' tanding Nater in the pond bottam throm,hbut days when there was no rain. The e\pected infilhation ra:e•s mre, ntiiif+41rd tobe siowur than 100 minLite•s per itch. I .1 tali tho aboy+.- itoms, dw procedures used- Cr it SETti Cart bo of int lutl}ti'T assesLllc? -Io.lNe call o -I u!� at (206) 756-8645. 'vsp-cc;ful31Y "11bntitiml �FE-�RS ENGiNEBf 1140 & TECHNICAL SERVICES n�ntl 1:C SOL PR 'r�~5 iden L �.:. Bcx'g1 .4LIPURN, VIASHIHGTOt. 9B071 tF 1r L00�i, 11: � 74.1 F :. _ F a .- PHONE: (2061786-3645 F.ax (2531833.7316 ID= Pace 1 of? PAI3E:001 F-91'. Z -d LL2S6`✓9£9Z 11NINdOIDAIa lJQ3JNIiino d09'.Z6 LO 66 oe C] SPEARS IJSP=CPON & TEST uG SP WC ES [)L]1P. �-1a-20 6 '3ECTECHVICA_ENG NEERING l'i-deCt Wilk(-Tr;On, 16617 ENGINEERING & v,,lNS7RU^.T1O'VNlATERIALS ENGINEER eFG 113th 73 P �+E, )Z2fltl)1l TECHNICALCCN57RW-TIC)V.'PRC:.IECTMANAGERIEN7 } SPECIALIZING 1N ROADS & BRI DGES SERMES -47-P /VlA4VJSPEARS-CN0rJEERlNG.COAI -a h .Rk2sLdts I .ti:�;mL�aLi:'1tsYL];lrrtirLu in Jndia 1--S't: ive Save NuTbms Ih.�h�rr�l -N,c'Flii� X C a V, Y. ?4 IM4 0 V 20';060 'EO CD 2W U ____-_.__ t 1 11 i 1 1 -1"_il_lJ.._-1«-.----,-___�__- '1 - Il.i ,II [�'�/� _ 1 J _ _ _ .! 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PHONE: (206) 786.8645 FAx (253')833.7316 TC, Page 2 of P=L�E:0 2 F'=?L': 8-d Z1286CWsz 1 1N3INd0­I3A30 3003JNI11f10 do Z4 Zo I,I, Oe0 Meins, Mike From: Townsend, Steve Sent: Tuesday, December 18, 2007 2:16 PM To: Lew, Tom Cc: Meins, Mike; Moore, Bernard; Conyers, Jody; Miller, Ray; Pray, Jeff Subject: RE: New Development Runoff/Wilkens Woods/L99P3010 Tom, This project is in bond forfeiture. I will ask Mike Meins to investigate. The photos seem to point to the problem being related to the building permits, not the plat, but we will see. By the way, this project is in the future annexation area of Benson Hills. The area is on track to annex to Renton March 1, 2008. At that time we will be forwarding all of our bond forfeiture projects in the city to Renton, it 2007-0685 Chihara 2007-0685 sketch l.pdf,,, Photos.pdf (378 KB) Steve Townsend, PE Supervisor, Land Use Inspections King County Department of Development and Environmental Services Phone (206) 296-7204 New email: Steve.Townsend@KingCounty.gov From: Lew, Tom Sent: Tuesday, December 18, 2007 1:50 PM To: Townsend, Steve Subject: New Development Runoff Hi Steve! 1UOi A7'l�as� We received a complaint from Jim Chihara (16475 1131 SE, 206-799-6118). He is concerned about stormwater runoff from a new development adjacent to him. The plat is Cascade Meadows (Wilkens Woods?) and I believe it is currently still under DDES inspection. Can you look into this? Attached are our Drainage Investigation Report and photos. Thanks! << File: 2007-0685 Chihara sketch 1.pdf>> << File: 2007-0685 Photos.pdf» L.)9 King Count'wy Department of Natural Resources Water and Land Resource Division DRAINAGE INVESTIGATION REPORT FIELD INVESTIGATION DETAILS OF INVESTIGATION: FILE NO. 2007-0685 NAME Jim Chihara ADDRESS 16475 113th Ave SE, Renton , 98055 PHONE 206-799-5118 TB PAGE 656 E6 KROLL PAGE 661 DATE 1.1129107-.-- MAINT. DIVISION 3 Initials SJ Site visit on 11128/07. 1 talked to Mr. Chihara on the phone and he explained that he is concerned with the runoff that is coming from the new development and is deliberately directed towards his property. The water runs along the property line and then discharges onto his property in the backyard, which is sloping off to the west. He is concerned that the extra amount of water from the development will erode the hill side. The new homes are in the final stage of completion. The area surrounding the homes is not yet landscaped and the development is on a higher elevation than the complainant. There are channels dug into the mud between some of the homes on the north side of the development to direct the flow to the north. The runoff then hits a silt fence and heads west where it eventually runs across the complainant's backyard and down a wooded slope. Mr. Chihara would like to have KC put a stop to the discharge of the runoff towards his property. SKETCH: #16475 ........... ...................�`� •r....__..,._�_ L -Y- ---_-_---_-___..- _ ............................r ---------- --ti ......................................... ------------ Cascade Meadows (Wilken's Wood Plat) D92954 -------------- ---- SE 166th PL N NTS LU a' s • Meins, Mike From: Michael Romano [michael.romano@eomcast.net] Sent: Tuesday, December 18, 2007 9:07 AM To: Meins, Mike Subject: RE: Wilken's Wood L07SI237 OK, Thanks Mike. Does it look to you like it's just a sag in the curb line that can be graded out or is that CB too high? Michael a. Romano Centurion Development services 22617 -8th Dr. SE Bothell, WA 98021 (425) 466-2563 (425) 486-3273 (F) michael.romano@comcast.net -----Original Message ----- From: Meins, Mike[mailto:Mike.Meins@kingcounty.gov] Sent: Monday, December 17, 2007 4:23 PM To: Michael Romano Subject: Wilken's Wood L07SI237 <<IMGP0520.JPG77 <<IMGPO521.JPG7> Mike - Two items on Wilken's Wood: 1) I met with Bob Eddy at the site about the power pole location. He is looking into it and I think has a solution_ He should be getting back to me soon. 2) The attached pictures show a ponding spot by the entrance to the plat. The contractor told me they did a repair in the area to fix it, but obviously it is not. This is on the punch list already. Thanks, Mike 1 Page 1 of 2 Thinley, Tenzing From: Jim & Teri {jtchihara@msn.com] Sent: Tuesday, November 20, 2007 6:32 PM To: Townsend, Steve Cc: Moore, Bernard; Scheffer, Rebecca; Thinley, Tenzing; Conyers, Jody Subject: RE: Cascade Meadows/AKA Wilkins Wood L99P3010 Steve, Thanks for the response. My memory of the hearing was asking if a fence was required and told that "most developers do". My fault for not pressing the issue, but allowing multiple story homes to be built within 5' of another property, I would think a fence would be a minimum requirement. I have 4 such homes being built along my property line. The development was allowed to raise the elevation with fill, anywhere from 3 to 5 feet and sloped to my property. I came home from work late last week during the heavy rains to find that they are diverting surface water to my property with shallow trench and have actually thrown a 4" drain line over the top of the filter cloth fence that separates the properties_ I need this to stop, I have enough water issues without now taking on the additional water from them. With the elevation and slope now present, I have to believe that water from their property will be an ongoing issue. Attaching pies from this weekend. Thankyou Jim Chihara 206-799-5118 From: Townsend, Steve [maiIto:Steve.Townsend@kingcounty.gov] Sent: Tuesday, November 20, 2007 3:03 PM To: jtchihara@msn.com Cc: Moore, Bernard; Scheffer, Rebecca; Thinley, Tenzing; Conyers, Jody Subject: Cascade Meadows/AKA Wilkins Wood L99P3010 Mr. Chihara, Thank you for your email inquiry. There appears to be several issues: • Does the development require a fence? • Llome construction sites need to be cleaned up. • Home construction is diverting surface water to your property. • Lot fill is sloping toward your property. To answer the first question I reviewed the Hearing Examiner's report for this project. I noticed you were listed as a party of record. I also noticed that the Hearing Examiner did not require the developer to install a fence. If you would like to look at the complete report you can find it by searching under L99P3010 on the examiner's web page: http://www. netrokc-ov/council/Hear-ingExaminer/search/ The remaining three questions appear to be related to home construction, not the development. The home construction is being inspected by the Building Inspection Section. Bernard Moore, Supervisor, should be able to respond to your home construction related concerns_ If you have any other concerns related to the development, the Land Use Inspector is Tenzing Thinley. You can reach Tenzing at (206) 296-7038, or at Tenzing.Thinley@KingCounty.gov. Sincerely, 11/26/2007 Page 2 of 2 Steve Townsend, PE Supervisor, Land Use Inspections King County Department of Development and Environmental Services Phone (206) 296-7204 New email: Steve.Townsend@KingCounty.gov From: Jim & Teri [mailto:jtchihara@msn.com] Sent: Saturday, November 17, 2007 8:18 AM To: web, Master Subject: RE: Cascade Meadows - 113th St SE Renton This is in regard to Cascade Meadows (Dreamcraft) project on 113th Ave SE in Renton. During tae past week's rain, they are diverting surface water to my property via pipe and trenches. Attaching pits. My property address is 16475 113th Ave SE Renton 98055. My cell # is 206-799-5118. I'm already concerned that I will have more surface water due to contractors installing 4 feet of fill and sloping toward my property. Jim Chihara -----Original Message ----- From: jtchihara@msn.com [mailto:jtchihara@msn.coml Sent: Monday, November 12, 2007 4:49 PM To: Web, Master Subject: Cascade Meadows - 113th St SE On "11/12/2007" at "04:49PM": A customer comment from jim chihara was posted from the King County webpage http://www5.metrokc.gov/parcelviewer/Viewer/KingCounty/footer.htm and mailed to webmaster@kingcounty.gov Subject: Cascade Meadows - 113th St SE Comment Type: Problem Email Address: jtchihara@msn.com I live just north of this project. Dreamcraft is building 4 homes along my property line, all within 5 to 8 feet away. I am sick and tired of picking garbage up out of my yard - material ranges from 2 x 4 with nails in it, siding, plastic, paper etc. I have called Dreamcraft but the jobsite needs to be cleaned up. I was thinking that they must be required to build a fence but according to the workers, they do not. I cannot believe a development can come in and build up the property elevation by 51, build 2 story homes with 5' of your property line without being required to build a fence. Is this true? Why would that expense be put upon me? An email response has been requested. 11/26/2007 0 0 NEI 0 0 • • 6 s;e a King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98057-5217 206-296-6600 TTY 206-296-7217 www,metrokc.gov Ll Design Plan Change NOT TO BE USED FOR EARLY START To Be Completed by Land Use Inspection Section ❑ This plan change is for Land sea pe/Rec reatio n/Street Tree: ❑ within the City of. NA Plan Change No. Plan Change Activity No. Project Name: Wilkens Wood Project No. 1,99P3010 _ Site Address: 16613. 113"' Ave SE Inspect Activity No. L04SI161 On June 6, 20071 the following plan change to the approved plan was: ) (requested by.applicant) Construct a wall of ultra block, with free draining material under edge of pavement on south side of cul-de-sac. Replace rolled curb in this area with vertical curb. Reason for Change/Code Citation: inability to provide side slope from roadway due to property line constraints. This Plan Change involves: Land Use Projects Only ® Roadway Pian & Profile ❑ Drainage Project is: ® recorded ❑ not recorded ® Traffic ❑ Materials Lab ❑ Platting ❑ Planner ❑ Site Development Services (Grading) ® Other StructnTal The proposed change requires revised engineering drawings that must be submitted to the Department of Development and Environmental Services for approval: Please call (206) 296-7137 when ready to submit. Design changes must be made by a professional civil engineer registered in the State of Washington. Payment of fees and deposits are due as of the date of this plan change, late penalties (CC 27.02.030) are applicable. Each submittal shall include three (3) sets of revised plans highlighted in green with a revision block and a symbol by each revision_ The revision block must be dated and initialed by the professional engineer making the revision. A copy of this form will be mailed directly to the design engineer indicated above and shall be included with each submittal. The review will be completed as soon as possible. Approval/denial will be directed to the persons indicated on the top of this form. Tim Cheatum 206-296-7232 June 6, 2007 Inspector Name and Phone No. date (pleas r ) Senio UY ineer ini ials date Developer Representative date S:Current Form. Design PTs Change.doc 09-12-06 Submittal Information: Upon completion of the review of the revisions, the reviewer shall notify the design engineer: Applicant: Centurion Development Services Engineer & License No.: Alexander Poblete 28352 ATTN: Mike Romano DMP, Inc Address: 22617 8th Drive SE Address: 726 Auburn Way North Bothell, WA 98201 Auburn, WA 98022 Project Name: Wilkens Wood Project No. 1,99P3010 _ Site Address: 16613. 113"' Ave SE Inspect Activity No. L04SI161 On June 6, 20071 the following plan change to the approved plan was: ) (requested by.applicant) Construct a wall of ultra block, with free draining material under edge of pavement on south side of cul-de-sac. Replace rolled curb in this area with vertical curb. Reason for Change/Code Citation: inability to provide side slope from roadway due to property line constraints. This Plan Change involves: Land Use Projects Only ® Roadway Pian & Profile ❑ Drainage Project is: ® recorded ❑ not recorded ® Traffic ❑ Materials Lab ❑ Platting ❑ Planner ❑ Site Development Services (Grading) ® Other StructnTal The proposed change requires revised engineering drawings that must be submitted to the Department of Development and Environmental Services for approval: Please call (206) 296-7137 when ready to submit. Design changes must be made by a professional civil engineer registered in the State of Washington. Payment of fees and deposits are due as of the date of this plan change, late penalties (CC 27.02.030) are applicable. Each submittal shall include three (3) sets of revised plans highlighted in green with a revision block and a symbol by each revision_ The revision block must be dated and initialed by the professional engineer making the revision. A copy of this form will be mailed directly to the design engineer indicated above and shall be included with each submittal. The review will be completed as soon as possible. Approval/denial will be directed to the persons indicated on the top of this form. Tim Cheatum 206-296-7232 June 6, 2007 Inspector Name and Phone No. date (pleas r ) Senio UY ineer ini ials date Developer Representative date S:Current Form. Design PTs Change.doc 09-12-06 King County Department of Development and Environmental Services 900 Oakesdale Ave SW Renton, Washington 98055-1219 Friday, June 08, 2007 Activity Number: L07PC O58 Project Number: L99P3010 Description Deposit Based on Est Mrs Site Inspect Counter Fee SUB TOTAL: Description Check SUB TOTAL: CHANGE GIVEN: BALANCE DUE: 0 FEE RECEIPT Applicant: DREAMCRAFT HOMES 3502 R ST NW AUBURN. WA 98001 253 8599697 E Checklog Check # Payee Date Entered Amount $1.400.00 $205.28 $1,645.28 Checklog Check # Payee Date Entered Amount 15587 DREAMCRAFT HOMES 06/0812007 ($1,654.28) ($1,654.28) 50.04 ($49.40) The fees shown above represent current charges as of this date and are an estimate based on the information provided to DDES at the time of application. DDES permit fees were restructured effective March 4th, 1999. Many fees previously assessed a flat fee, now are assessed as hourly charges. Because of this change, and to ensure that our customers secure permits as quickly as possible, permits may be issued prior to all hourly charges being recorded into our billing system. For services that are rendered on an hourly basis, the cost of those services will be based on the actual hours worked. Hourly fees are charged at the rate in effect at the time of service, and will be billed monthly, along with any other outstanding fees. Fees that have been posted prior to permit issuance will be collected at that time. Fees subsequently posted will be billed to the applicant. All fees must be paid in full before DDES issues Final Approval, T.C.O. or C.O. Printed on: Frida}, June 08, 2007 at 8:39:01 AM Page t of 50C r� King County Department of Development and Environmental Services 900 uArsdale Ave SW Renton, Washington 98055-1214 June 7, 2007 0 Page 1ofI Summary of Charges and Payments Applicant: DREAMCRAFT HOMES Activity Number: 1,07PCO58 3502 B ST NW Project Number: L99P3010 AUBURN, WA 98001 Development Number - Perm it umber:Permit Type: CHANGE 253 8599697 Status: PENDING Description Amount Deposit Based on Est Firs $1,400.00 Site Inspect Counter Fee $205.28 SUB TOTAL CHARGES: $1,605.28 Description Check ## Checklogid Payee Date Entered Amount SUB TOTAL PAYMENTS: $0.00 BALANCE: $11605.28 ............ ............ ...... ................. The fees shown above represent current charges as of this date and are an estimate based on the information provided to DDES at the time of application. For services that are rendered on an hourly basis, the cost of those services will be based on the actual hours worked. Hourly fees are charged at the rate in effect at the time of service, and will be billed monthly, along with any other outstanding fees. Fees that have been posted prior to permit issuance will be collected at that time. Fees subsequently posted will be billed to the applicant. All fees must be paid in full before DDES issues Final Approval, T.C.O. or C.O. . ... ............... ........... 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I ti TECHNICAL INFORMATION REPORT FOR WILKINS WOOD CLIENT: Dreameraft Homes 215 East Meeker Kent, WA 98032 Phone: (253) 859-9697 PREPARED BY: Daley -Morrow Poblete, Inc. 726 Auburn Way North Auburn, WA 98002 Phone: (253) 333-2200 PROJECT No. 03-285 DATE: Sept. 25, 2003 REV 1860: A PRS L 5, 2�&n f WV1SED: MA'? 1Z, 2004 RrvISED: JUA IS PZDCq REVISED, J00 6, 2164 r D � M 0 M Cf) CD M c7 � 0 M CnCn 4 - EXPIRES JAN. 9, 2004 STAMP NOT v1W6 uNlESS SONED AND DAIED 1 1 TABLE OF CONTENTS DESCR[PTfON PAGE SECTION I — PROJECT OVERVIEW Project Overview 1 - 2 Vicinity Map 3 TIR Worksheet 4-6 Soils Map 7 SECTION iI — CONDITIONS AND REOUIREMENTS SUMMARY Preliminary Plat Conditions 1-12 SEPA Determination of Nonsignificance 13-14 SO 220 15-20 Revision Activity No. L03RE031 21 Adjustment Modification Approval — Dec. 11, 2003 22-23 Response to Plat Conditions 24-26 Response to Revision Activity No. L03RE031 26 Response to Condition of Adjustment Modification 26 E-mail From King County Metro 27 SECTION III — OFF-SITE ANALYSIS Downstream Analysis 1-42 SECTION IV — FLOW CONTROL AND WATER OUALITY FACILITY ANALYSIS AND DESIGN Existing Site Hydrology (Part A) 1 Existing Condition Basin Map 2 Existing Condition Peak Flow Rates 3 Developed Condition Hydrology (Part B) 4 Area Breakdown 5 Developed Condition Basin Map 6 Developed Condition Peak Flow Rates 7 Bypass Peak Flow Rates S Performance Standards (Part C) 9 Flow Control Systeme (Part D) 9 Water Equality System (Part E) 9 Detention Facility Design 10-14 Vertical Grate Design 15 Emergency Overflow Manhole Design 16 Wetpond Design 17 SECTION V — CONVEYANCE SYSTEM ANALYSIS ANDD SIGN Conveyance System Design — Backwater Analysis 1 - 7 SECTION VI — SPECIAL REPORTS AND STUDIES ADAPT Engineering, Inc. Geotechnical Engineering Evaluation 1-35 SECTION VIl -- OTHER PERMITS N/A SECTION VIII — T.E. S_C. ANALYSIS AND DESIGN Narrative for ESC Plan 1 Sediment Pond Design 2 1 11 SECTION IX - BOND QUANTITIES AND FACILITY SUMMARIES _I ' Bond Quantities Worksheet Landscape Bons} Quantity Form -- 9 9A -9B Storm Facility Summary Sheet 10-11 Stormwater Facility Sketch 12 — 14A ' SECTION X — OPERATIONS AND MAINTENANCE MANUAL NIA 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SECTION I PROJECT OVERVIEW PROJECT OVERVIEW The Plat of Wilkins Wood is located on a 1.54 acre parcel located in the Southeast, ' quarter of the Northeast quarter of Section 29, Township 23 North, Range 5 East, Willamette Meridian, King County Washington. The proposed project will consist of the creation of 10 single-family residential lots. It is located on the west side of 113'h Avenue SE between S_E_ 164h Street and S_E_ 16e Street_ All necessary utilities and stormwater facilities will be constructed to serve the development_ This report is being prepared pursuant to the 1998 King County Surface Water Design Manual (SWDM)_ On -Site Drainage Analysis This project site is situated within the Upper Soos Creek Sub -basin of the Soos Creek basin tributary of the Green River Drainage basin. Presently, the site contains an existing residence near the center of the site. The remainder of the site is undeveloped ' and is covered with pasture grass and a sparse scattering of shrubs and trees native to the Pacific Northwest. The ground slopes away from the center of the site in all directions. Runoff from the site sheet flows to all directions from the center high point of the site_ ' The flows to the east are intercepted by the 113`h Avenue SE roadside ditch and drain to the south_ The properties to the north and south are residential and do not receive much runoff. The property to the west slopes west to 111"' Avenue SE. The soils on the site ' are Alderwood Gravelly Sandy Loam (AgQ as classified by the US Soil Conservation Service- ' Upstream Drainage Analysis This site is located within the Upper Soos Creek Sub -Basin of the Soos Creek Drainage I Basin of the Green River basin. There are no upstream flows. Downstream Drainage System Description As discussed above, the flow from the site discharges to the adjacent properties in all directions from the central high point. The major flows are to the east to 113I' Avenue SE and to the west to 111 `h Avenue SE where the flows are collected by the existing roadside drainage systems. IFuture Site Conditions An appropriately sized conveyance system will be designed and constructed to collect the developed on-site runoff from the proposed project. Flows from the site will be collected and conveyed to the water quanity and water quality facilities located at the eastern side of the site. The storm water facilities will be constructed pursuant to King County Standards for Level 1 Flow Control. The detention pond/wetpond will be constructed near the site entrance. Roof and footing drains and catch basins will collect all runoff ' from the impervious areas of the site and route the water to the detention pond/wetpond, where it will be treated and slowly released to a piped downstream drainage system. 1 a L� S i�-M i LY [VIUP 1 King County Department of Development and. Environmental Services TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part.l , PROJECT OWNER;AND.. PR ECT'ENGINEER ,,` Project Owner Address -'� a c.• �' ELS i� Phone�- 04 Project Engineer L G. LE Company Address/Phone Short Subdivision Grading Commercial Other Part Z PROJECT LOCATION AND':. DESCRIPTION . Project Name W I KtAI S - &&222 Location Township Z 3AI Range 4�i � ._Section — Z Part'S �`:S River CHARACT:.ERISTICS Floodplain Wetlands Stream Seeps/Springs Critical Stream Reach High Groundwater Table Depressions/Swales Groundwater Recharge Lake Other Steep Slopes Pari 7°:.SOILS Soil Type Slopes Erosion }}Potential Erosive Velcoties Additional Sheets Attached Part >.. _EVi�QP[IENT#M#Ti�TfONS REFERENCE LIMITATIOWSITE CONSTRAINT Ch. 4 — Downstream Aughmis Additional Sheets Attached Part 9 C BM JjFjB #EWS MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION AFTER CONSTRUCTION Sedimentation Facilities �abilize Exposed Surface Zst ilized Construction Entrance Remove and Restore Temporary ESC Facilities wmeterRunoff Control 'ean and Remove All Sift and Debris ring and Graing Restrictions f Ensure Operation of Permanent Facilities Cover Practices Flag Limits of SAO and open space Construction Sequence preservation areas Other Other vJ I', 1 fI 11 Pant 3a 'SURF C -E -WATER SYSTEM Method of Analysis Grass Lined Tank Infiltration i�Q g Kc (STs Kc ChMmel Vault Depression - --- Pipe System Energy Dissapator Flow Dispersal on of Eliminated Site Open Channel Wetland Waiver Storage Dry Pond Stream �Pon Regional Detention Brief Description of System Operation Ru 1 A t' f �t44 v f " L—AAr 1 !_ ik' �O�.irol Strvc�x�s o Facility Related Site Limitations Reference Facility Limitation Pert1.,V...: ., ::STRUCTURAL ANALYSIS rqe in Place Vault Retaining Wall Rockery > 4' High Structural on Steep Slope Other Part .t2 .-EASEMENTSrrRACTS Drainage Easement Access Easement Native Growth Protection Easement Tract Other Part13SIGNATURE`OF'PROFESSIONALENGINEER I or a civil engineer under my supervision my supervision have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attachments. To the best of my.knowledge the information provided here is accurate. SECTION H CONDITIONS AND REQUIREMENTS SUMMARY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 December 1 ] , 2000 OFFICE OF THE HEARING EXAMINER KING COUNTY, WASHINGTON 850 Union Bank of Califomia Building 900 Fourth Avenue Seattle, Washington 98164 Telephone (206) 296-4660 Facsimile (206) 296-1654 REPORT AND DECISION ON APPLICATION FOR PRELIMINARY PLAT SUBJECT: Department of Development and Environmental Services File No. L99P3010 Proposed Ordinance No- 2000-0577 . WILKIN'S WOODS Preliminary Plat Application Location: 16613 -- 113th Avenue Southeast, Renton, Washington Applicant: Me) L. Daley Daley-Morrow-Pobletc, Inc. 726 Auburn Way North Auburn, WA 98002 Telephone: (253) 333-2200 Facsimile: (253) 333-2206 King County: Department of Development and Environmental Services Land Use Services Division, represented by Karen Scharer 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 Telephone: (206) 296-7114 Facsimile: (206) 296-7051 SUMMARY OF RECOMMENDATIONS: Department's Preliminary Recommendation: Department's Final Recommendation_ Examiner's Decision: PRELIMINARY MATTERS: Application or petition submitted: Complete application: Approve, subject to conditions Approve, subject to conditions Approve, subject to conditions September 9, 1999 October 7, 1999 L99P3010-wilkins' woods EXAMINER PROCEEDINGS: 2 Hearing Opened: December 7, 2000 Hearing Closed: December 7, 2000 Participants at the public hearing and the exhibits offered and entered are listed in the attached minutes_ A verbatim recording of the hearing is available in the office of the King County Hearing Examiner_ ISSUESITOPICS ADDRESSED: Student walking conditions Safe walking conditions Walkway Drainage Road standards Interlocal agreement Density Intersection lighting Grants preliminary approval to the proposed subdivision of 1.53 acres into 10 single-family residential building lots. FINDINGS, CONCLUSIONS & DECISION: Having reviewed the record in this matter, the Examiner now makes and enters the following: FINDINGS: I- General Infor) nation_ Owner: Developer/ Engineer: John Wilkins 16613 —113th Ave. SE Renton, WA 98055 Mel L. Daley, P_E_ Daley-Morrow-Poblete, Inc. 726 Auburn Way North Auburn, WA 98002 Telephone: (253) 333-2200 1 L99P3010-Wilkins' Woods Location: STR: Zoning: Acreage: Number of Lots: Density: Lot Size: Proposed Use: ' Sewage Disposal: Water Supply: Fire District: School District: 1 1 16613 – 1131h Avenue SE, Renton, WA 29-23-05 Parcel #00800 - 0400 R-8 SO 1.53 acres 10 6"5 units per acre Ranges from approximately 3,000 to 6,200 square feet Single-family detached dwellings Soos Creek Water and Sewer Soos Creek Water and. Sewer King County District #40 Renton School District 2. Proposal. John Wilkins (the Applicant), represented by Mel L. Daley, P"E proposes to subdivide a 1.53 acre parcel into 10 single-family residential building lots" With lot sizes ranging from approximately 3,000 to 6,200 square feet, the plat will achieve a density of approximately 6"5 dwelling units per acre—within the density range authorized by the R-8 zoning classification. The proposed development is described more precisely in Exhibit No.7 (Preliminary Site Plan) a reduced copy of which is included as Attachment No" 1 to the Preliminary Report dated September 7, 2000 (Exhibit No" 2) prepared by the Department of Development and Environmental Services ("DDES" or "Department"). 3. State Environmental Policy Act. On October 10, 2000 the Department issued a threshold Determination of Non -Significance (DNS) regarding Wilkins' Wood. That is, the Department issued its determination that an Environmental Impact Statement (EIS) need not be prepared" That determination was based upon the Department's finding, having reviewed the environmental checklist and various relevant environmental documents, that the proposed development would not create or cause a probable significant adverse impact on the environment. No agency, tribe, person or other entity appealed that determination. The environmental review record supporting That determination is incorporated in this public review record as well. 4. Department Recommendation" The Department recommends granting preliminary approval to the proposed plat of Wilkins' Wood, subject to the 13 conditions of final plat approval stated on pages 5 through 9 of the Department's Preliminary Report (Exhibit No" 2)" Those conditions address density and dimensional requirements of the R-8 zone, platting requirements, public and private road standards, fire protection, drainage (including run off control, conveyance, water quality and geotechnical analysis), road design standards, utilities, mitigation payments due to King County Department of Transportation, impact mitigation payments due to the Renton School District, suitable recreation area, "significant tree" provisions, street trees, and inspection fees" ' 5_ Applicant Response. The Applicant accepts the Department's recommendation as set forth in Exhibit No. 2 (Preliminary Report). 1 L99P3010-VY+Ikins' woods 4 ' 6_ Neighboring property owners have expressed concerns regarding traffic, density, drainage, noise, utilities and character of development. Public hearing participants particularly expressed concern regarding the following: a. Density and character of development_ The density of the proposed development complies with the requirements of the zone_ The same zone applies to surrounding ' properties. However, the surrounding properties are not (yet) developed at R-8 density. Thus, the proposed development contrasts with a neighborhood that may be regarded as "large lot" rural/suburban in character. Generally, County -wide, the King County ' Comprehensive Plan calls for higher densities in urban areas and lower densities in rural areas_ The vicinity of the proposed development has been designated by the County Cotmcil as "urban." This determination, already adopted and contained in the Comprehensive Plan and implementing zoning maps, caTmot be reversed through the ' review of a single subdivision proposal - With small urban lots, some property owners express concern regarding the character of the proposed build out particularly regarding whether the new homes will be modular, mobile or "stick built." King County does not regulate the "character" of new development_ Design review is usually limited to historic preservation districts or similar ' special areas. However, the Applicant's representative observes that the cost of developing these lots strongly mitigates against mobile home placement_ In order to recover development costs, one may reasonably expect more substantial homes_ ' b_ Drainage. The subject property is divided into two sub -basins. However, the Applicant has obtained a drainage adjustment that authorizes collecting all impervious surface ' drainage on the property, then conveying it to a single retention/detention facility. At final plat approval, the facility will be transferred to King County ownership. King County will be responsible for maintenance as well. The drainage will be conveyed ' westward from the subject property to the 1 I l th Avenue Southeast system through approved and accepted easements. Both storage and conveyance capacities must comply with King County Drainage Standards Manual. Northerly flowing drainage to the ' abutting Chihara property will be slightly reduced - c_ Safe walking conditions. RCW 58-17.110 requires that before granting preliminary plat 1 approval the Examiner must find a condition of safe walking conditions for students who only walk to school. In order to meet this standard, the Department recommends, and the Applicant accepts, the following. Sidewalk, curb and gutter development to County Urban Standard along the 200 foot property frontage. Several hundred feet of (minimum) 5 -foot wide gravel pathway, constructed to King ' County Road Standards specifications (extending from the subject property northward to Southeast 164th Street)- Details of that walkway construction must be approved by the Department and will be coordinated with abutting/fronting property ' owners. A variety of design solutions are possible_ In some cases, fences may be 99 1 1-99P3010 Wilkins' Woods required to be moved_ In others, the open ditch along 1 i Al Avenue Southeast may be culverted. In yet others, the walkway may meander around a significant tree. The final design ;will be administratively approved by the DDES Engineering Review ' Unit as a condition of final plat approval 7. City of Renton Concerns. The City of Renton and King County have not entered into an interlocal agreement whereby concerns regarding development standards may be mutually ' addressed, or whereby the City might influence development approvals and conditions within its intended future annexation area. Nonetheless, the City Engineering Department has offered comment in this case_ The City requests that the proposed development be required to comply with City of Renton standards. The City standards, according to the DDES Review Engineer, .would require wider sidewalks, wider street roadway, and a larger tum -around bulb_ The ' minimum County standards for a "minor access" street such as this one satisfy the dimensional requirements of the King County Fire Marshall (whose concern includes large vehicle access and turn -around capability)_ Whether the standards promulgated by the City should be considered as ' "lower". or "higher" is subject to dispute_ Although the City standards allow greater vehicle maneuverability, they also increase the impervious surface load upon drainage systems. The Applicant opposes the City's recommendation because the City standards would require major redesign (at this very late date in the preliminary plat review process) and could reduce the number of lots authorized by the R-8 zoning classification. 8. Except as noted above, the facts and analysis contained in the Land Use Services Division ' Preliminary Report dated December 7, 2000 correct and are incorporated here by reference_ A copy of the Land Use Services Division report will be attached to those copies of the examiner's report which are submitted to the King County Council. 9. Any portion of any of the following conclusions that may be construed as a finding is incorporated here by this reference_ CONCLUSIONS: ' I . Any portion of any of the above findings that may be construed as a conclusion is incorporated here by this reference. ' 2_ Ifapproved subject to the conditions recommended below, the proposed subdivision will comply with the goals and objectives of the King County Comprehensive flan, Subdivision and Zoning Codes, and other official land use controls and policies of King County. ' 3. If approved subject to the conditions recommended below, this proposed subdivision will make appropriate provision for the public health, safety and general welfare and for open spaces, for ' drainage ways, streets, other public ways, transit stops, potable water supply, sanitary wastes, parks and recreations, playgrounds, schools and school grounds, and safe walking conditions for students who only walk to sebool; and it will serve the public use and interest. 1 1_99P3010-Wilkins'Woods 4_ The conditions for final plat approval recommended below are in the public interest and are reasonable requirements to mitigate the impacts of this development upon the environment. ' S_ `The dedications of land or easements within and adjacent to the proposed plat, as recommended by the conditions for final plat approval or as shown on the proposed preliminary plat submitted by the applicant, are reasonable and necessary as a direct result of the development of this ' proposed plat. ' DECISION: The proposed plat of Wilkins' Wood is GRANTED PRELIMINARY APPROVAL; subject to the ' following conditions of final plat approval: 1. Compliance with all platting provisions of Title 19 of the King County Code. ' 2_ All persons having an ownership interest in the subject property shall sign on the face of the final plat a dedication which includes the language set forth in King County Council Motion No_ 5952- 3. The plat shall comply with the base density (and minimum density) requirements of the R-8 zone classification. All lots shall meet the minimum dimensional requirements of the R-8 zone classification or shall be as shown on the face of the approved preliminary plat, whichever is ' larger, except that minor revisions to the plat which do not result in substantial changes may be approved at the discretion of the Department of Development and Environmental Services_ ' 4_ All construction and upgrading of public and private roads shall be done in accordance with the King County Road Standards established and adopted by Ordinance No. 11187, as amended (1993 KCRS). ' S_ The applicant must obtain the approval of the King County Fire Protection Engineer for the adequacy of the fire hydrant, water main, and fire flow standards of Chapter 17.08 of the King ' County Code. 6. Final plat approval shall require full compliance with the drainage provisions set forth in King County Code 9.04. Compliance may result in reducing the number and/or location of lots as t shown on the preliminary approved plat. Preliminary review has identified the following conditions of approval, which represent portions of the drainage requirements_ All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also ' be saiisfied during engineering and final review_ a. Drainage plans and analysis shall comply with the 1998 King County Surface Water ' Design Manual. DDES approval of the drainage and roadway plans its required prior to any construction. ' b. Current standard plan notes and ESC notes, as established by DDES Engineering Review shall be shown on the engineering plans. ' L99P3070-Wilkins' Woods The size of the proposed drainage tract may have to increase to accommodate the required detention storage volume. The runoff control facilities shall be located in a separate tract and dedicated to King County unless portions of the drainage tract are used for required recreation space in accordance with KCC 21A_14.180. As specified in section 5. 1.1 of the 1998 KCSWDM, roof drain storm water shall be infiltrated or 1 dispersed within the lot area if the soil conditions are favorable. f. Core Requirement No_ 4: Conveyance Systems. ' The outlet pipe from the detention facility that is proposed to convey storm water over the downstream Weber property shall adhere to Section 4.2.1 of the 1998 KCSWDM_ ' g. ' Core Requirement No_ 8: Water Quality. The site is subject to the Basic water quality requirements of the 1998 KCSWDM. h. Special Requirement No. l : Other Adopted Area Specific Requirements. I The project is located within the Soo-, Creek Community Planning Area that contains C. The following note shall be shown on the final recorded flat: " All building downspouts, footing drains, and drains from all impervious surfaces such as patios and driveways shall be connected to the permanent storm drain outlet as shown on the approved construction drawings #f on file with DDES and/or the Department of Transportation_ This plan shall be submitted with the application of any building permit_ All connections of the drains must be constructed and approved prior to ' the final building inspection approval. For those lots that are designated for individual lot infiltration systems, the systems shall be constructed at the time of the building permit ' and shall comply with the plans on file." _d., . Core ar Requirement No. L.Discha at the Natural Location_ g The applicant has received approval for the requested diversion of surface water within the project (See Adjustment File L00V0040). The conditions for variance approval shall be satisfied during design and review of the project engineering plans_ ' e_ Core Requirement No. 3: Runoff Control. Storm water runoff control shall be provided using the Level One flow control detention criteria outlined in the 1998 King County Surface Water Design Manual (KCSWDM). The downstream conveyance capacity shall be evaluated during engineering review to ' accommodate developed, undetained flows above the design storms handled by the level One flow control criteria. This will be required per Core Requirement P of the SWDM at engineering review_ The size of the proposed drainage tract may have to increase to accommodate the required detention storage volume. The runoff control facilities shall be located in a separate tract and dedicated to King County unless portions of the drainage tract are used for required recreation space in accordance with KCC 21A_14.180. As specified in section 5. 1.1 of the 1998 KCSWDM, roof drain storm water shall be infiltrated or 1 dispersed within the lot area if the soil conditions are favorable. f. Core Requirement No_ 4: Conveyance Systems. ' The outlet pipe from the detention facility that is proposed to convey storm water over the downstream Weber property shall adhere to Section 4.2.1 of the 1998 KCSWDM_ ' g. ' Core Requirement No_ 8: Water Quality. The site is subject to the Basic water quality requirements of the 1998 KCSWDM. h. Special Requirement No. l : Other Adopted Area Specific Requirements. I The project is located within the Soo-, Creek Community Planning Area that contains 11 1 L99i'3010-Wilkins' Woods special district overlays for seasonal clearing restrictions, clearing and grading and significant trees. The applicable P -suffix requirements shall be addressed on the final engineering plans. Geotechnical Analysis and Report_ A "Geotechnical Engineering Evaluation and Limited Subsurface Environmental Assessment" has been performed by AdaPT Engineering, Inc. Shallow depth to bedrock and marginal fill materials were located in the western and eastern portions of the site, respectfully. Recommendations from this report shall be implemented during engineering review. 7. The proposed subdivision shall comply with the 1993 King County Road Standards (KCRS) including the following requirements_ a_ Proposed SE 167th Court shall be unproved as an urban minor access street - b_ Frontage road improvements on 113th Avenue SE are required to the urban subcollector standard. C. Tracts A and C shall he improved as private joint use driveways which serve a maximum of two lots. The serving lots shall have undivided ownership of the tract and be responsible for its maintenance. As specified in KCRS 3.01 C, improvements shall include an 18 foot paved surface and a minimum tract width of 20 feet. Drainage control sball include a curb or tbickened edge on one side. d. The proposed road improvements shall address the requirements for road surfacing outlined in KCRS Chapter 4_ As noted in section 4.01F, full width pavement overlay is required where widening existing asphalt, unless waived by the review engineer or reviewing agency. e. Street trees shall be included in the design of all road improvements, and shall comply with Section 5.03 of the KCRS. f_ Off-site road improvements of t 13th Avenue SE north to SE 164th Street are required for safe school children walking conditions. Provide at a minimum a 5 -foot wide gravel walkway. g_ There shall be no direct vehicular access to or from 113th Ave. SE frorn Lot 4, which abut it_ A nate to this effect shall appear on the engineering plans and final plat. b. Modifications to the above road conditions may be considered by King County pursuant to the variance procedures in KCRS I.0$. $_ All utilities within proposed rights-of-way must be included within a franchise approved by the King County Council prior to final plat recording. �J 11 1 L99P3010-Wilkins' Woods 9_ The applicant or subsequent owner shall comply with King County Code 14.75, Mitigation Payment System (MPS), by paying the required MPS fee and administration fee as determined by the applicable fee ordinance_ The applicant has the option to either: (1) pay the MPS fee at final plat recording, or (2) pay the MFS feeat the time of building permit issuance. if the first option is chosen, the fee paid shall be the fee in effect at the time of plat application and a note shall be placed on the face of the plat that reads, "All fees required by King County Code 14.75, Mitigation Payment System (MPS), have been paid_" if the second option is chosen, the fee paid shall be the amount in effect as of the date of building permit application. 10. Lots within this subdivision are subject to King County Code 21A.43, which imposes impact fees to fund school system improvements needed to serve new development. As a condition of final approval, fifty percent (50%) of the impact fees due for the plat shall be assessed and collected immediately prior to recording, using the fee schedules in effect when the plat receives final approval. The balance of the assessed fee shall be allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance_ 11. Suitable recreation space shall be provided consistent with the requirements of KCC 2]A.14.180 and KCC 21A.14.190 (ve_, sport court[s], children's play equipment, picnic table[s], benches, etc.)_ a. An overall conceptual recreation space plan shall be submitted for review and approval by DDES, with the submittal of the engineering plans_ This plan shall include location, area calculations, dimensions, and general improvements. The approved engineering plans shall be consistent with the overall conceptual plan. b_ A detailed recreation space plan (i.e., landscape specs, equipment specs, etc_) consistent with the overall conceptual plan, as detailed in item a., shall be submitted for review and approval by DDES and King County Parks prior to or concurrent with the submittal of the final plat documents. c_ A performance bond for recreation space improvements shall be posted prior to recording of the plat. d_ A homeowners' association or other workable organization shall be established to the satisfaction of DDES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s)- 12. SO -22.0 shall be implemented through submittal of engineering plans in compliance with the significant tree provisions. 13. Street trees shall be provided as follows (per KCRS 5.03 and KCC 21A_16.050)_ a_ Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads_ Spacing may be modified to accommodate sight distance requirements for driveways and intersections. 9 I 1_99P3010-Wilkins'Woods 1 1 n 10 b. Trecs shall be located within the street right-of-way and planted in accordance with Drawing No_ 5-009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right-of-way. c. If King County determines that the required street trees should not be located within the right-of-way, they shall be Iocated no more than 20 feet from The street right -of way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or other workable organization unless the County has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat- e_ The species of trees shall be approved by DDES if located within the right-of-way, and shall not include poplar, cottonwood, soft maples, gum, any fruit -bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. f_ The applicant shall submit a street tree plan and bond quantity sheet for review and approval by DDES prior to engineering plan approval. g_ The applicant shall contact Metro Service Planning at 584-1622 to determine if 113th Ave. SE is on a bus route. If 113th Ave_ SE is a bus route, the street tree plan shall also be reviewed by Metro. h_ The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat_ If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or The performance bond replaced with a maintenance bond, and held for one year_ After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kept healthy and thriving. A landscape inspection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current County fees - 1 ORDERED this I i th day of December, 2000. IC 1 L99P3010-Wilkins' Woods 11 ' TRANSMITTED this i l tit day of December, 2000, to the following parties and interested persons: Jim Chihara John Wilkins ' Met Daley Mark Bergam Roger Dorstad Greg Borba Connie L Johnson Kim Claussen Linda Matlock Peter Dye ' Eleanor Moon Nick Gillen Paul Morrow Kristen Langley New Home Trends Aileen McManus Mike Ryan Carol Rogers ' Belh A Scheller Karen Scharer Seattle -King County Health Dept Lang West Chris Nunnallee ' NOTICE OF RIGHT TO APPEAL In order to appeal the decision of the Examiner, written notice of appeal must be filed with the Cleik of the King County t Council with a fee of 1;125.00 (check payable to King County Office of Finance) on or before December 25, 2000_ If a notice of appeal is filed, the original and six (6) copies of a written appeal statement specifying the basis for the appeal and argument in support of the appeal must be filed with the Clerk of the King County Council an or before January 1, 2001_ Appeal statements may refer only to facts contained in the hearing record; new facts may not be presented on appeal. ' Filing requires actual delivery to the Office of the Clerk of the Council, Room 403, King County Courthouse, prior to the close of business (4.30 p.m_) on the date due_ Prior mailing is not sufficient if actual receipt by the Clerk does not occur within the applicable time period. The Examiner does not have authority to extend the time period unless the Office of the ' Clerk is not open on the specified closing date, in which event delivery prior to the close of business on the next business day is sufficient to meet the filing requirement. ' If a written notice of appeal and filing fee are not filed within fourteen (14) calendar days of the date of this report, or if a written appeal statement and argument are not filed within twenty-one (21) calendar days of the date of this report, the decision of the hearing examiner contained herein shall be the final decision of King County without the need for further action by the Council_ ' MINUTES OF TILS DECEMBER 7, 2000 PUBLIC HEARING ON DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES FILE NO. L99P3010— WILKINS' WOOD: ' R_ S. Titus was the Hearing Examiner in this matter. Participating in the hearing and representing the Department was Karen Scharer and Mark Bergam_ Participating in the hearing and representing the Applicant was Mel Daley. Other participants in this ' hearing were Jim Chihara and Chris Nunnallee- The following exhibits were offered and entered into the record: ' Exhibit No_ I DDES Filc No. L99P3010 Exhibit No. 2 DDES Preliminary Report to the Hearing Examiner, dated December 7, 2000 Exhibit No. 3 Application, dated September 9, 1999 Exhibit No. 4 Environmental Checklist, dated August 25, 1999 ' Exhibit No. 5 Declaration of Non -significance, dated October 10, 2000 Exhibit No. 6 Affidavit of Posting indicating October 13, 999 as date of posting and October 15, 1999 as the date the affidavit was received by DDES_ Exhibit No_ 7 Site Plan (preliminary plat drawing), dated July 27, 2000, received July 28, 2000 ' Exhibit No_ 8 Revised Downstream Analysis, DMP Engineering, Inc., received March 27, 2000 Exhibit No_ 9 Assessors Map NE 29-23-05 L99P3010-Wilkins` Woods 12 Exhibit No. 10 Geotechnical Analysis, AdaPT Engineering, Inc-, received Marcli 27, 2000 Exhibit No. 11 Pedestrian Analysis, Daley-Morrow-Poblete, Inc., received March 27, 2000 Exhibit No. 12 Application for Surface Water Drainage Manual Adjustment Request, received March 27, 2000 Exhibit No. 13 Letter received January 4, 2000 from Michial Ryan Exhibit No. 14 Letter received November 9, 2000 from Jim Chihara Exhibit No. 15 E-mail from the City of Rcaton, dated December 5, 2000 and received December 5, 2000 requesting the County to use the City development standards for road improvements RSTsje PtatslL99P3010 RPT ' King County Department of Development and Environmental Services State Environmental Policy Act {SEPA} Determination Of Nonsignificance for ' Wilkins Wood 1 L99P301.0 ' Date of Issuance: October 10, 2000 ' Project: Subdivision - creating a 10 lot single family development on approximately 1.54 acres zoned R-8-PSO. The lot sizes range from approximately 3,000 to 6,200 square feet. n Location: 16613 113'h Avenue SE, Renton, WA King County Permit: L99P3010 SEPA Contact: Karen Scharer, Planner, Current Planning Section, LUSD Phone # 296-7114 or e-mail at karen.scharer@netrokc.gov Proponent: Mel L. Daley, P.E. Daley-Morrow-Poblete, Inc. 1215 Central Avenue S., #133 Kent, WA 98042 Phone # 253-333-2200 Zoning: R-8 PSO Community Plan: Soos Creek Section/Township/Range: 29-23-05 Parcel # 0488000400 Notes: A. This finding is based on review of the revised project site plan received July 28, 2000; environmental checklist dated August 25, 1999; Level 1 Downstream Analysis dated February 1999; Geotechnical Report dated March 6, 1999; and, other documents in the file. B. Issuance of this threshold determination does not constitute approval of the permit. This proposal will be reviewed for compliance with all applicable King County codes which regulate development activities, including the Uniform Fire and Building Codes, Road Standards, Surface Water Design Manual, and the Sensitive Areas Regulations. 1 Wilkins Wood L99P3010 October 2, 2000 Page 2 Threshold Determination The responsible official fads that the above described proposal does not pose a probable significant adverse impact to the environment. This finding is made pursuant to RCW 43.21 C, KCC 20.44 and WAC 197-11 after reviewing the environmental checklist and other information on file with the lead agency and considering mitigation measures which the agency or the applicant will implement as part of the proposal. The responsible official finds this information reasonably sufficient to evaluate the environmental impact of this proposal. The lead agency has determined that the requirements for environmental analysis, protection, and mitigation measures have been adequately addressed in the development regulations and comprehensive plan adopted under chapter 36.70A RCW, and in other applicable local, state, or federal laws or rules, as provided by RCW 43.21C.240 and WAC 197-11-158. Our agency will not require any additional mitigation measures under SEPA. Comments and Appeals Written comments or any appeal of this threshold determination must be received by King County's Land Use Services Division prior to 4:30 PM, October 27, 2000. Appeals must be accompanied by a nonrefundable filing fee. Please reference the file numbers when corresponding_ Appeals must be in writing and state the perceived errors in the threshold determination, specific reasons why the determination should be reversed or modified, the harm the appellant will suffer if the threshold determination remains unchanged, and the desired outcome of the appeal. If the appellant is a group, the harm to any one or more members must be stated. Failure to meet these requirements may result in dismissal of the appeal. Commentlappeal deadline: Appeal filing fee: Address for comment/appeal: 4:30 PM on October 27, 2000 $125 check or money order made out to the King County Office of Finance King County Land Use Services Division 900 Oakesdale Avenue SW Renton, WA 98055-1219 ATTN: Current Planning Section Responsible Official: /V -x- I do Greg Borba, Current planning Supervisor Dae Signed Current Planning Section Land Use Services Division Date Mailed: Octobet 10; 2000 SEPA Deterrdnation.doc 7/27/99 c!e (:/ 11,1116 �.VuuLy YY(ia1I aSuvn raga t VI r t King County, Washington Development Condition Query Results Post -Conversion Condition: SO -220 1 Effective. August 18, 1997 ' Ammended by Ord. 13576, 7/22/99, removed area now covered by NS -P23 ' Description ' Significant Trees SDO Deyelopment Condition Text ' Significant Trees. ' A_ The purpose of the significant trees special district overlay is to provide a means to designate areas losing their natural vegetation that characterizes their community and receiving the accompanying impacts from increased stormwater runoff and decreased ' wildlife habitat_ This district overlay limits removal of significant trees in these urbanizing areas to reduce visual impacts of development and maintain a portion of the natural vegetation and soils characteristic of the Pacific Northwest. B. The following development standards shall be applied to all residential, commercial (including golf courses), industrial or institutional development proposals located ' within a significant tree district overlay: 1 _ Significant tree retention rates. Except when replacement trees are used as provided in subsection 8.5, significant trees defined pursuant to K.C.C. 21A.06 shall be at a minimum retained as follows: ' a. Exclusive of the area required for site access by vehicles, pedestrians, or utility infrastructure, significant trees shall be retained within required perimeter landscape areas at the following rates: ' (1) One hundred percent for the interior perimeters. ' (2) Seventy-five percent for the street perimeter, provided that this standard may be reduced to 50 percent for retail commercial developments if: ' (a). the combined landscaping and tree retention requirement is shown by the http://www6.metrokc.gov/ddes/new—direct.cftn 11/1/01 1 , ' applicant to result in: i. the loss of the line -of -sight necessary for identification of the retail commercial 1 development; and ii. a vegetative buffer exceeding the screening characteristics of a Type III landscape ' screen, or (b) The average width of the street perimeter landscape area is increased by 50 ' percent, provided that within the additional landscape area, significant trees are retained at the rate consistent with subsection c; ' b. If any portion of the lot contains erosion hazards, significant trees located in the interior of separate lots, including sensitive areas or their buffers, shall be retained in single detached dwelling development at the rate of 20 trees per acre or ten percent ' of such trees, whichever is greater; c. Significant trees located in the interior of the development proposal, including ' sensitive areas or their buffers, shall be retained in a residential subdivision at the rate of 20 trees per acre or ten percent of such trees, whichever is greater; ' d. Significant trees located in the interior of the development proposal, excluding sensitive areas or their buffers, shall be retained in an apartment or townhouse development at the rate of 20 trees per acre or ten percent of such trees, whichever is ' greater; e. Significant trees located in the interior of the development proposal, excluding ' sensitive areas or their buffers, shall be retained in commercial or industrial development at a rate of ten trees per acre or five percent of such trees, whichever is greater; tf. Significant trees located in the interior of the development proposal, excluding sensitive areas or their buffers and areas designated for sport fields, playfields or ' other recreational facilities, shall be retained in institutional developments at a rate of ten trees per acre or five percent of such trees, whichever is greater; ' g. Utility developments and mineral extraction operations shall be exempt from the significant tree retention requirements of this section; and ' h. Project sites with 25 percent or greater of the total gross site area in sensitive areas, sensitive area buffers and other areas to be left undisturbed such as wildlife corridors, shall be exempt from the significant tree retention requirements of this ' chapter; 2. Retention plan. The applicant shall submit tree retention plans as follows: ' a. A significant tree inventory shall be submitted for review prior to or with submittal of development permit applications. The tree inventory may be conducted by any ' method that reflects general locations, numbers and grouping of significant trees on- http://www6_metrokc.gov/ddes/new direct.cf n 11/1/01 ' site; and b. A detailed tree retention plan shall be submitted for review prior to or with submittal of grading permit applications or other permit applications incorporating grading plans. This plan shall identify the exact location, size, species, and condition of the significant trees proposed to be retained, transplanted or replaced in order to comply ' with this chapter; 3. The retention requirements shall be met as follows: ' a. Except as provided in subsection b, the applicant shall determine that the final tree retention plan does not include significant trees unable to survive more than ten years tafter the date of project completion due to: (1) Damage or disease; ' (2) Safety hazards due to potential root, trunk or primary limb failure; ' (3) Windfall; or (4) Age in relation to the normal lifespan of the tree species, 1 b. At the discretion of the county, damaged or diseased or standing dead trees, not classified as a danger tree, may be counted toward the significant tree requirement if ' demonstrated that such trees will provide important wildlife habitat; c. A significant tree may be credited as two trees when it meets one or more of the ' following characteristics: (1) The tree is 18 inches or greater in diameter, (2) The tree is located in a grouping of at least five trees with canopies that touch or overlap; ' (3) The tree provides energy savings through winter wind protection or summer shading as a result of its location relative to buildings; 4 The tree belongs to a unique or unusual species; () 9 q ' (b) The tree is located within 25 feet of any sensitive area or required sensitive area buffers; or ' (6) The tree is listed on a historical register; and ' d. The department shall, pursuant to K.C.G. 2.98, develop and maintain an advisory listing of trees recommended for retention. Such list shall describe their general characteristics and suitability, and provide guidelines for their retention; ' 4. Protection. To provide the best protection for significant trees designated for http://www6.metrokc.gov/ddes/new_direct.cf n 1111101 0 LyY, UV11V. 4j {l4a' 1\VJUlb L�+iv, l�aab vtiu+aL� *wv""'�j"`"'— --4- retention, the development shall comply with the following: a. No tree removal for a project action shall be allowed prior to the county approval of a grading permit consistent with tree retention and landscape plans; b. Prior to clearing for a project action, trees to be retained shall be flagged; ' c. Prior to grading for a project action and throughout construction, a temporary chainlink or plastic net fence shall be used to identify the protected area of any ' significant tree designated for retention. The height of such fencing shall be adjusted according to the topographic and vegetative conditions of the site to provide clear visual delineation of the protected area. The size of protected area around the tree ' shall be equal to one foot diameter for each inch of tree trunk diameter measured four feet above the ground; and ' d. At no time during and after construction shall the following be permitted within the area described in subsection c: ' (1) Impervious surfaces, fill, excavation, or storage of construction materials; or . (2) Grade level changes, except in limited circumstances where proposed ' improvements using permeable materials are determined by an arborist to be non - detrimental to the trees root system; and ' e. Alternative or additional protection methods may proposed and be used if determined by the director to provide equal or greater protection for trees designated for retention; ' 5. Plan modifications and tree replacement are permitted as follows: a. Any significant tree in the interior may be replaced by another significant tree in the interior; ' b. If the required number of significant trees cannot be retained, then non-significant sized trees may be retained or new trees may be planted to meet significant tree requirements as follows, provided that the reason for the purpose of this subsection, the significant tree to be replaced by the new or existing replacement tree is assigned a diameter of 12 inches: ' (1) When using replacement trees measuring three inches in diameter or greater (as measured by caliper), one-half inch diameter of replacement tree shall be provided for every one inch diameter of significant tree to be replaced; and ' 2 When using replacement trees measuring less than three inches in diameter (as measured by caliper), one inch diameter of replacement tree shall be provided for ' every one inch diameter of significant tree to be replaced, and c_ An approved tree retention plan shall be modified to reflect any changes made ' pursuant to subsection a and b: and http://wwwb. metrokc_ gov/ddes/new direct. cfm 11 / 1 /01 1 ( D15 ' 6. Maintenance. The following provisions apply to significant trees where applicable: ' a. All significant trees shall be maintained for the life of the project; b. All significant trees shall be pruned and trimmed as necessary to maintain a ' healthy growing condition or to prevent primary limb failure. This requirement shall not be interpreted to allow: ' (1) Topping of primary stems, (2) Pruning that results in the loss of 20 percent of vegetative mass, and ' (3) Cutting of major roots, except in preparation for transplantation or as deemed necessary and/or acceptable by a certified arborist; and ' c. With the exception of dead, diseased or damaged trees specifically retained to provide wildlife habitat; other dead, diseased, damaged or stolen plantings shall be replaced within three months or during the next planting season if the loss does not occur in a planting season. ' C. The development standards set forth in paragraph B shall not be applied to institutional development proposals that consist of one or more of the following uses: 1 1. Government services listed in K.C.C. 21A.08.060, 2. Educational services listed in KC -C. 21A.08.050, 3. Parks as listed in K.C.C. 21A.08.040 when located adjacent to an existing or proposed school, or ' 4. Libraries listed in K.C.C. 21A.08.040. ' Ordinance 92823 Effective Date August 18, 1997 I Changes Ammended by Ord. 13576, 7122199, removed area now covered by NS -P23 View Map(s) for SO -220. (Click on a map name in the list) Note: If there are more than one map listed below, there may be a map file http://www6.metrokc_gov/ddes/new_direct_ cim 11/1/01 � �t i _ � k;lliiiiill � - •} lilt ��I� fir•• I �'=Iii 1111 I - ; ' u# - I 1 ' r.r.' 'i>r��.r.r.0 a�II■`�■ i, .. - Jnr JI 1 3 1 ; =� 4 k _ Jr�1���1�eiil''�' ,�1� ' • ;■AIS I `• I iJll:.. 1 I.jMilt A � IJ _ ■l at01.:,.�5'.i,� J a ■ �7� •j �� ;moi. ' �,� �4 :� MAU ■ � LL FA �! 'ELI f ��'f ��� L s � � ,1 • �. i•.., 4 III' 'r _ I f Jr�! ¢- �`l` •��\�I r I r -� moi- 1Y�� � -.* �■ iril7i�rbr- !JhI A�■■.'f.. �r111iY,'�:7�f. '.ti •.. !°+7..1 '11 tKing County RE: Wilkin's Woods (DDES File_Na--L99P30'L0) Revision Activity No. L03RE031 Dear Mr. Korve: ' The Subdivision Technical Committee has reviewed your revised plat of Wilkin's Woods and finds that the proposal is minor and within the spirit and intent of the preliminary approval. ' Based upon our findings, approval is granted to the revised preliminary plat received August 1, 2003, subject to all original conditions of approval and the following conditions: 1. The proposed change to the downstream drainage route is subject to a modification of ' the LOOV0040 SWDM adjustment prior engineering plan approval. Note, additional information regarding the capacity of the downstream conveyance system and/or downstream improvements may be necessary as indicated by findings in the LOOV0040 ' Adjustment. 2. Tracts A and D shall be designed and constructed as private urban minor access roads. Tract A shall be owned and maintained by lots 1-3, Tract D shall be owned and maintained by lots 6-9. Notes regarding ownership and maintenance shall be Shown on the engineering plans and final plat. ' Enclosed is a copy of the approved revision for your records. If you have any questions, please call me at (206) 296-7167. ' Sinrely, m Claussen, Project Manager III Current Planning Section ' Cc: Mark Bergam, Senior Engineer, Engineering Review Section wlenc . Randall Parsons, Senior Engineer, Engineering Review Section w/enc ' Steve Townsend, P.E., Supervising Engineer, Development Inspection Section w/enc Joanne Carlson, AS 11, Engineering Review Section, LUSD w/enc File w/enc Zl 1 Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 ' August 14,003 2 ' Hans Korve ` DMP, Inc. 726 Auburn Way North ' Auburn, WA 98002 RE: Wilkin's Woods (DDES File_Na--L99P30'L0) Revision Activity No. L03RE031 Dear Mr. Korve: ' The Subdivision Technical Committee has reviewed your revised plat of Wilkin's Woods and finds that the proposal is minor and within the spirit and intent of the preliminary approval. ' Based upon our findings, approval is granted to the revised preliminary plat received August 1, 2003, subject to all original conditions of approval and the following conditions: 1. The proposed change to the downstream drainage route is subject to a modification of ' the LOOV0040 SWDM adjustment prior engineering plan approval. Note, additional information regarding the capacity of the downstream conveyance system and/or downstream improvements may be necessary as indicated by findings in the LOOV0040 ' Adjustment. 2. Tracts A and D shall be designed and constructed as private urban minor access roads. Tract A shall be owned and maintained by lots 1-3, Tract D shall be owned and maintained by lots 6-9. Notes regarding ownership and maintenance shall be Shown on the engineering plans and final plat. ' Enclosed is a copy of the approved revision for your records. If you have any questions, please call me at (206) 296-7167. ' Sinrely, m Claussen, Project Manager III Current Planning Section ' Cc: Mark Bergam, Senior Engineer, Engineering Review Section wlenc . Randall Parsons, Senior Engineer, Engineering Review Section w/enc ' Steve Townsend, P.E., Supervising Engineer, Development Inspection Section w/enc Joanne Carlson, AS 11, Engineering Review Section, LUSD w/enc File w/enc Zl 1 King County , O � Department of Development ��'Ijj ' and Environmental Services 900 Oakesdale Avenue SW COQ Renton, WA 98055-1219 ' December 11, 2003 Dreameraft Homes Mel L. Daley, P.E. 215 East Meeker Daley-Morrow-Poblete, Inc. Kent, WA 98032 726 Auburn Way North ' Auburn, WA 98002 RE: Wilkins Wood Subdivision 1998 KCSWDM Adjustment Modification Request File ' No. LOOV0040) Dear Applicant and Engineer: ' The Land Use Services Division, Engineering Review Section, has completed review of the adjustment modification request for the Wilkins Wood subdivision. You are requesting ' modification to existing adjustment LOOVO040 concerning Core Requirement No. 1, Section 1.2.1, Discharge at the Natural Location. Our review of the information provides the following findings: ' 1. The Wilkins Wood project, L99P3010, is currently being reviewed under engineering review activity number L03SR052. 2. The , original adjustmentsigned August 8, 2000, allowed converging on-site g J g stormwater runoff from the split basin, 1.5 acre parcel to a single facility. The location of the facility on-site is immaterial to the diversion request_ 3. At the time, a letter of intent had been signed from the adjoining property owner to ' grant an easement to allow a stormwater conveyance line to transit the southern edge of his property to the eastern side of the 111th Avenue SE right-of-way. ' 4. There had also been acknowledgement that the existing conveyance system to the east, on the west side of the 113"' Avenue SE right-of-way, could have potential conveyance limitations to the intersection crossing of SE 168'1, Street. 5. Both subbasins on the project site are within the same threshold discharge area. ' 6. Due to the inability to secure the easement, the proposal is to shift the release point from the on-site stormwater detention system from the west to the east_ 1 . ' Wilkins Wood/Adjustment L00V0040 Modification December 11, 2003 ' Page 2 of 2 Based on these findings, we hereby approve the modification to the existing adjustment to allow the shift of runoff to be released from the single facility to the east to I I P Avenue SE. All of the original conditions still apply in addition to the following condition: 1 _ In the Technical Information Report (TIR) the downstream stormwater conveyance ' system will be shown to have adequate capacity for the upstream tributary area, including the developed, undetained 100 -year flow from the Wilkins Wood subdivision in accordance with Chapter 4 of the 1998 KCSWDM. If the existing downstream conveyance system is shown to have inadequate capacity, then it shall be upgraded as necessary. ' If you have any further questions regarding this 1998 KCSWDM adjustment or the design requirements, please contact Mark Bergarn at (206) 296-7270. ' Si ccrely, James Sanders, P.E. Jim Chan, P.E. ' Development Engineer Supervising Engineer Engineering Review Section Site Engineering and Planning Section Land Use Services Division Building Services Division ' cc: Curt Crawford, P.E., Managing Engineer, Stormwater Services Section, KCDNR Ted Cooper, P.E., Engineer II, Engineering Review Section, LUSD ' Mark Bergam, P.E., Engineer III, Engineering Review Section, LUSD 11 1 RESPONSE TO PLAT CONDITIONS Job # 98464 Response to Plat Conditions a 1_ All platting provisions of Title 19 of the King County Code have been met. 2. All persons having an ownership interest will sign the final plat. 3. The plat meets the requirements of the R -S Zoning classification. 4. All roads have been designed in accordance with Ring County Road Standards. ' 5. The Applicant will obtain approval of the King County Fire Protection Engineer for water chains and fire flows as part of the water plans_ Location of the fire hydrant is per King County Fire Engineering Department. See copy of ' Preliminary Approved Hydrant Location. 6. A. The plans have been prepared in accordance with King County Code 9.04 and ' the requirements of the Surface Water Management Division. B. Notes are shown on the plans_ C. The `Building Downspout Note" will be shown on the Plat. D_ Since a drainage easement to the west was not granted by the adjacent property owner, we are now proposing to drain to the east. The proposed detention facility will be constructed near the site entrance, and will drain Into the facilities along 113'h Avenue SE. Modification to Adjustment request File No. ' L00V0040 has been granted on December 11, 2003. A copy of the approval is included in this section. The condition of approval was addressed on the plans and T.I.R. ' E. Level 1 flow control has been provided Conveyance calculations for the downstream facilities are also included in the T.I.R. A storm drainage tract is provided for the storrnwater facility. Roof infiltration or dispersal is not being ' proposed due to the site soi is and the size of the lots. F. We are no longer draining through the Weber property. See response to item 6.13 also. ' G. Basic Water Quality is provided by a wet pond. H_ The P -suffix conditions SC -P3 has been repealed and no longer applies to this ' project. 1. The recommendations of the Geotechnical Report have been followed. Note 4 was also added to Sheet 4_ ' 7. The following King County Road Standards have been addressed as indicated: ' A. SE 167h Court has been designed as an urban minor access street_ B. Frontage improvements including curb, gutter and sidewalk have been provided for 113'x' Avenue SE to meet Urban Subcol lector Standards. ' C. Tracts A and C will serve more than 2 lots, and are provided with 22' of AC pavement in a 26' Tract. Job # 98464 Response to Plat Conditions a ' D. We are requesting that the full width overlay requirement be waived by the review engineer. ' E. Street Trees are provided. F. A walkway is provided from the site to SE 164h Street along I I P Ave. G. Lot I will access off of Tract A. See revised lot layout. ' H. No other variances are being requested_ S. All utilities within the proposed rights of way will be included in a franchise ' agreement approved by the County prior to final plat recording_ 9. The Applicant will pay the MPS fee and administration fee. 10. The Applicant will pay the School Impact Fees. 11. The recreational space plan requirements were addressed as follows: A. A conceptual recreational space plait will be provided. B. A detailed recreational space plan will be submitted prior to final plat approval_ C. A performance bond will be posted by the owner prior to recording of the plat. D. A homeowners' association will be established 12. The requirements of SQ -220 will be met. A plan will be provided. ' 13. The street tree requirements were addressed as follows: ' A. A Street Tree Plan is attached to the plan set. B. Trees will be located within the lots. C. See Street Tree Plan_ ' D. Street Trees will be owned by the abutting lot owner, and will be noted on the face of the final recorded plat. ' E. A note has been added to the Street Tree Plan. F. A Street Tree Plan is attached to the plan set. The bond quantity sheet will be provided. ' G. We have contacted Mr. Paul Alexander of Metro. He indicated that 113' Avenue SE is not on a bus route. See e-mail from Metro on page 27- H. Final plat issue. ' I_ Final plat issue. 1 Job # 98464 Response to Plat Conditions 1 1 1 1 1 1 1 1 1 1 1 1 1 1 RESPONSE TO REVISION ACTIVITY No. L03RE031 — August 14, 2003 1. Adjustment Modification was approved on Dec. 11, 2003_ Response to Conditions of Adjustment Modification. 2. Tracts A and D were design as private urban minor access roads. Notes 3 and 4 were added to plan Sheet 3, which states the ownership of the Tracts. RESPONSE TO CONDITIONS OF ADJUSTMENT MODIFICATION — Dec. 11, 2003 1. The downstream conveyance facilities were analyzed in Section IV_ The facility has adequate capacity for the 100 -yr undetained flow. Job # 98464 Response to Plat Conditions 0 1 u 11 Alex Poblete From: Alexander, Paul [Paul_Alexander@METROKC.GOV] Sent: Wednesday, September 17, 2003 3:45 PM To: 'Alex Poblete' Subject: RE: Wilkens Wood Project Winks for providing us a review of this project to see if any transit related improvements are needed. In fact, none are needed because this project is too far off of aur service and is to small to have much impact on existing ridership at the nearest bus stops. Again, thanks for asking. Paul Alexander- TrmspWtation P/annex King County Metro Transit 201 S Jackson St, KSC-Tit-0413 Seattle, WA 98104 Ph: 206-684-1599 Fx:206-684-1860 -----Original Message— From: Alex Poblete [mattto:aiexp.dmp@gwell.com] Sent: Monday, September 15, 2003 3:23 PM To: paul.aleonder@rrietrokc.gov Subject: Wilkens Wood Project Sept. 15, 2003 Dear Mr_ Alexander: Per King County requirement, we are supposed to contact you to determine if our project is on a bus route. Plat Condition 13.g states: The applicant shall contact Metro Service Planning at 684-1622 to determine if 113"' Ave. SE is on a bus route_ If 113th Ave_ SE is a bus route, the street tree plan shall also be reviewed by Metro. The Plat of Wilkins Wood is located on a 1.54 acre parcel located in the Southeast, quarter of the Northeast quarter of Section 29, Township 23 North, Range 5 East, Willamette Meridian, King County Washington. The proposed project will consist of the creation of 10 single-family residential lots. ft is located on the west side of 113th Avenue SE between S -E. 164th Street and S_E_ 168th Street. Please e-mail your response to me at alexpAmpOgwell.00rn. Thanks for your attention. iSincerely, Alex Poblete DMP, Inc. 1 n/X/?.003 SECTION III OFF-SITE ANALYSIS A LEVEL I DOWNSTREAM ANALYSIS FOR WILKINS PLAT CLIENT: JOHN WILKINS 16613 113'x" AVE SE REN'TON, WA 9805 5 206-9374343 PREPARED BY: D.M.P. Engineering Inc. 1215 South Central Ave., Suite 133 Kern, WA 98032 Phone: (246) 854-9344 PROJECT: 98460 DATE: February 1999 REV tsgp : Sept. 2 f, zeo3 1 1 1 1 1 TABLE OF CONTENTS TASK 1: STUDY AREA DEFINITION AND MAPS TASK 2: RESOURCE REVIEW TASK 3: FIELD INSPECTION TASK 4: DRAINAGE SYSTEM DESCRIPTION AND PROBLEM SCREENING TASK 5: MITIGATION APPENDIX I Copy of King County Drainage Complaints Printout for Page 656 of Thomas Guide within Grids D6, D7, E6, & E7. Copy of Information From King County WALRD Basin Reconnaissance for Upper Portion of Soos Creek. EXHIBIT A Copy of City of Renton Aerial Topography of a Portion of 29-23-5 Showing Site, Upstream Basin Boundary, and Downstream System Described in Task 4 for Approximately .7 mile. EXHIBIT B Copy of City of Renton Aerial Topography at 1"=100' Showing Site, and Downstream System for'/, mile. EXHIBIT C Request for well location. EXHIBIT D Wetland Report. EXHIBIT E Recorded Drainage Complaints_ EXHIBIT F Off-site Analysis Drainage System Table Z TASK I. • STUDY AREA DEFINITION ' The proposed Wilkens Plat is within a portion of the Southeast quarter, of the Northeast quarter of Section 29, Township 23 North, Range 5 East, Willamette Meridian, King County Washington. The eastern portion of the site abuts 113' Ave. SE. ' 1.53 -acre +/- site is presently used as a single-family residence. There is a The Wilkens Plat p y � scattering of native deciduous and coniferous trees in the western portion of the site. The undergrowth consists of native sallal, sword fern, Indian plum, and sahnonbenies. The eastern portion of the site from the existing residence to 113' SE is lawn. ' The site has been field surveyed. The existing condition contours and structures within the property are shown on the preliminary plat. There is a high point in the central portion of the site. A western portion of the site slopes to the west/northwest. Drainage runoff from the western ' portion of the site flows to the drainage ditch/stream along the eastern side of I I Vh SE. The existing ditch on the western side of 113th SE intercepts drainage runoff from the eastern portion of the site. Stormwater runoff from both sub -basins within the site converges at the low point ' along SE 168'b St.. The distance from the western portions of the site to the convergence point is approximately 1000'. The distance from the eastern portion of the site to the convergence point ' is approximately 900'. The King County Sensitive Areas Folio indicates that the site is within the Soos Creek Drainage Basin. The study area for the Wilkens Plat is defined as the western side of the upper most portion of the Soos Creek Basin as indicated on Sheet 4 of the Sensitive areas folio. Exhibit A shows the limits Study Area. ' It is proposed to subdivide the Wilkens property into 10 single-family resident lots. The existing residence is proposed to be re n+ uvzd . A cul-de-sac road, utilities, storm detention, and water quality facilities are proposed to be constructed to serve the development. The 1998 ming Courcy Surface Water Design Manual requires that a Downstream Analysis be conducted for a distance of `/, mi.jar-d fa the point where the project site constitutes 15% of the ' contributing downstream basin, whichever is greater. The proposed Wilkens Plat is 1.53+/ - acres. The area contributing stormwater runoff to the existing 18" CPEP at the low point along SE 168h St. is approximately 73 acres. Therefore, the V4 mi. distance requirement governs this ' analysis. The resource review for this analysis, and the area shown. on Exhibit A, cover_ s the downstream system to where the strearn crosses to the east under 116` Ave. SE. 116' Ave SE is ' approximately .7 mi. downstream of the site. A large 312 -unit commercial apartment complex (Benson Downs) is under construction on the north side of Petrovitsky Rd. SE. The downstream analysis for this project is on file at DDES_ The description of the downstream system from the Benson Downs project addresses the continuation of the system for a total distance of 1 nu. A vicinity map is included in this section. "1 3 1 '14" t �R, �l tq t4l tRi tq tq tq tq it ft ft ft 14 TASK 2: RESOURCE REVIEW ' The following resources have been reviewed in the preparation of this Downstream Analysis: 1 King County Basin Reconnaissance Summary Reports The site is within the upper portion of the Soos Creek sub-basin. Soos creek is a part of the Green River Basin. The Basin Reconnaissance program was completed in 1992. Proposed Project #5401 is within Soos Creek Wetland #1 located approximately `/z mi downstream of the site. ' 2. Flood lain/ floodwa MA Maps The site is not within a 100-yr floodplain. 1 3. Sensitive Areas Folio ' Copies of page 4 of the Wetlands and Streams portion of the Sensitive areas Folio showing the location of the site are included within this section. ' Wetlands: The Streams and 100 Year Floodplains sheet (page 4) of the Sensitive areas Folio identifies ' Soos Creek Wetland #1 as being located to the south of the low point along SE 168'11 and to the east of the eastern terminus of SE 169hPL within the PIat of Benson Glen. The distance downstream from the southwestern boundary of the site to Soos Creek Wetland #1 is ' approximately 1/4mL This wetland is also shown on attached Exhibit A. ' Streams The Streams and 100 Year Floodplain sheet (page 4) of the Sensitive areas Folio identifies an unclassified stream along the eastern side of l l lm Ave SE. This stream is approximately ' 400' to the west of the proposed project. The stream flows to the south under SE 168b in an 18" CPEP culvert. This stream is also shown on attached Exhibit A. ' There are no Erosion Hazard, Landslide Hazard, or Coal Mine Hazard areas within 1/4mi. of the site. 4 SWM Division Drainage Investigation Information ' A chronological printout of historic drainage complaints made to the County within the area on grids D6, D7, E6, and E7 on page 656 of the Thomas Guide is provided in Appendix 1. This information was obtained from King County DNR Drainage Investigation. The contact ,, person was Dave Hancock @ 296-8230. ' A review of the abbreviated printout indicates that there are no ongoing drainage problems within V4 mi. distance downstream of the site. ' in order to obtain more information from King County one has to make a written request for release of information under the public disclosure process and one will need to wait for several weeks to receive the information. 5. King County Soils Survey M s ' A copy of a portion of Sheet 11 of the King County Soils Survey Map is included. The site is underlain with Alderwood (AgC) soils. The King County Soil Survey was published in 1973. Alderwood Soils are glacial till soils that are have a weakly to strongly consolidated substratum at a depth of 24 to 40 inches. Alderwood soils are generally not a good candidate for infiltration of stormwater runoff from large sites. b. Wetlands Inventory MWs ' Sheet 4 of the Wetlands Inventory Map does not show a wetland within the site. The wetlands downstream of the site were discussed in Item 3. — above. Provided in this Section are the Following` Attachments: ' _ Copy Co of Sheets 4 of the Streams and Wetlands Portion of the Sensitive areas Folio. ' - Copy of a portion of Sheet 11 of the King County Soils Survey Map. - Copy of King County Basin Boundary Information — Obtained at Preapplication Meeting ' - Copy of Aerial Photograph of the Site and Adjacent Properties- Obtained at Preapplication Meeting. 1 -rte - '•� r .., ` ' ' ��_ r�! 'rte r,---�cerSlau9h ` 1 i 1 Nest _1 Saniti�ieiiah ...ay .i ..� e F� ----r- �:S - - qtr �� �.,-.J• 3 ,' AAerQer lsMnd r ". r { _ — Fiod cme1F�`jt { 1 La ke ti j %ti w A. , .t ray,i� 1}� r -'} t hingwrt r lwCreek moi. 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Icy :►����[ � _ r�' � r.�� . �'. _ ,3 wrs:wc• Lh4 _IN # " --.' �� '^ _ ':. + "1 • . _ r p -ski j�. .�' ,�.;,�...: y{e'. ,h [�v rte" �'wlij, 77 "..�!:k :..�.• �`. y .1? 1,,rh���' � r �� �R. I`4 � r,•,n' � F" •;.� ''"• `T 'f iG� a'�d:' �r�+-„�•. ti-� _;, � 'T •f � �u i.'e. A.:•� tee- �'� -^a �..�'�.iaw.f :•,J''•.�t S M�,�,• rt '�• •� r �. 'tip,. •* Ar.: r,� `• c ...a... {' ». �-''• 'dry oil jj LIM a . j„� w xv- IN :;fr�r / r ". t ✓''.. '1 r . �r � . � y � 'r � � �'1 4.F wh � r1. r. }�,_' i M•`t fv,. ' '.+�'.�• f •.1i ,.•' �•k 1.... • In _ rl�,.ii f�.is 'YE?`F,Z`�ir fyC.- •`' !.: _,'� a In 1��t � r. �� ,�:q'. .lii s : J `fir. "j,d' �T 'k. '^r '�;�' r'- •'r1 f7 I i,�'. ::k'; S4~ ...i TASK 3: FIELD INSPECTION ' The site has been field surveyed. Topographic contours and existing structures within the property are shown on the Preliminary Plat plan sheet. Due to the fact that there is a high point within the central portion of the property, there is no off-site stormwater entering the site. The ' upstream portion of the Soos Creek Basin that the site is within and the downstream system for a distance of 1/4rni is shown on the attached Exhibit A. Exhibit A is copy of a portion of the City of Renton aerial topography for S 29-T23N-R5E. Unfortunately, the City of Renton produces ' aerial topographic maps using metric contour elevations. The site and the downstream system to where the stream crosses under I I6`h Ave. SE were most ' recently visited on March 1, 1999. The weather during the site visit was overcast, with rain. Stormwater was observed to be flowing in the existing conveyance systems on the West Side of 113`h SE and within the stream on the East Side of I I I Ave SE. ' 1. Investigation of R rted or Observed Problems During Resource Review ' The review of resources did not indicate that there are any ongoing problems with the downstream system for a distance of 1 mi. ' Due to the absence of significant stormwater it was not possible to observe any problems in the field. ' The property to the south of SE 1684 had a 6' high chain link fence. The property owners were not at home. Therefore, the stream within this portion of the downstream analysis was not observed in the field. It should be noted that there were no records of drainage ' complaints within this property. Soos Creek Wetland #1 is a large Class H wetland that provides a significant amount of ' stormwater storage and storm flow attenuation that appears to protect the downstream properties. ' 2. Location of Existing/Potential Constrictions or Lack of Ca in the Existing Drainage System ' The stormwater that leaves the eastern portion of the site at the southeastern property line enters a 12" RCP culvert that may be a potential constriction due to the invert elevation The preliminary design of the stormwater detention facility for the project may include the ' reconstruction of the existing conveyance system from the southeastern corner of the site south to the 113 SE/SE 16$ intersection. ' No existing/potential constrictions or lack of capacity problems were identified for stormwater that leaves the western portion of the site. The 18" CPEP culvert that conveys stormwater to the south under SE 168` appears to have been replaced within the past several ' years as evidenced by the pavement patch at the location of the culvert. The measured distance from the IE of the 18" CPEP to the rim of the inlet at the low point was ' approximately 12'- r y I Identification ofExist_inRoteial_Floodin� ' There were no areas identified as having existing or potential flooding problems from the site to a distance of .7 ami. downstream. ' 4. Identification of ExistinJPotentiai Overtopping, Scouring Bank Sloughing, or Sedimentation ' Within the observed _7 rni. distance downstream, there were no areas identified as having of existing or potential overtopping. 5. Identification of Significarnt Destruction of Aquatic Habitat or Organisms ' The unclassified stream that is to the north of SE 168' St is within an area that is in the process of urbanizing and has experienced a gradual decline in the process. South of SE 168`' St. the stream flows through one tax parcel prior to entering Wetland #1. Wetland #1 ' does not appear to contain significant Aquatic Habitat. 6. Collection of Qualitative Data on Land Use, Impervious Surfaces, Topography, and. Soil 1 TYPE The upstream contributing drainage basin that contributes stormwater to Wetland #1 consists of approximately 50% single family residences. The undeveloped portion of the basin, outside of sensitive areas, north of SE 16e is zoned R R -SO which will allover for dense development. The soil type for the majority of the basin is Alderwood (AgC). The ' topography of the basin and the extent of existing development are shown on the City of Renton Aerial topography neap — Exhibit A. ' 7. Collection of Information on Pipe Sizes, Channel Characteristics, and Drainage Structures. Exhibit B, shows the downstream conveyance route from the southeastern corner of the site ' to the existing Type 11 structure at the low point along SE 1680'. Pipe sizes and channel characteristics were determined using a 25' tape. Task 4 contains a description of the conveyance characteristics from the site to Soos Creek Wetland #1. 1 8. Verification of TributM Basins ' The approximate tributary basins are identified on the City of Renton aerial topography map attached as Exhibit A. Verification of the upstream tributary basin contributing stormwater runoffto the low point along SE 168' St. was determined in the field by walking around the ' site, opening CB grates to determine the direction of stormwater flow, and observing topographic basin breaks using the City of Renton aerial topography map as a reference guide. :1 3 1 ' 9. Contacting of Neighborirgg Prope y Ownm During one of the site visits, a property owner (Mr. Bishop) along the West Side of 111b Ave. SE came out for a chat. Mr. Bishop's residence is identified on Exhibit B. Mr. Bishop has lived on his property since 1949. Mr. Bishop is retired. Mr. Bishop provided a short history of the development of the area, including information concerning past flooding. Prior ' to the reconstruction of the culvert under SE 16e and other culvert replacements along the East Side of 111' Ave. SE, periodic flooding occurred_ Since the reconstruction, the problems have ceased. Mr. Bishop indicated that when he first moved in, salmon were in the ditch in front of his house. 10. Documentation of Existing, Site Conditions The existing site conditions are documented in this report by walking the site, the perimeter of the site, and driving to locations where basin breaks could be observed_ The Site has been field surveyed. 11_. Collection of Quantitative Field Data Quantitative field data has been collected for the site and downstream to Wetland #1 in the form of City of Renton Aerial Topography. The culvert sizes and ditch descriptions shown on Exhibit B were measured in the field with a 25' tape. The direction of stormwater flow was visually observed during a period of rainfall. 11 1 1 ' TASK 4: DRAINAGE SYSTEM DESCRIPTION AND PROBLEM ' SCREENING t1. - Drainage System Components Attached to this report are Exhibits A& B. Exhibit A is a copy of the City of Renton Aerial ' Topography showing the site, the upstream basin flowing to SE 168" St., and the downstream system to I I e Ave SE. The scale of Exhibit A is 1"=200'. Exhibit B is an enlarged copy of Exhibit A at 1"=100' showing the existing conveyance system from the southeast corner of the ' site to the low point along SE 168"' St.. An analysis of the capacity of the off-site conveyance system from the outfa0 of the proposed detention facility to the existing CB at the northwest corner of the 113' Ave SE / SE 168'h St. ' intersection will be performed as part of the Stormwater Drainage analyses when the engineering design is prepared. ' The following is a description of the downstream drainage system. A. Eastern Portion From Site to Low Point Along SE 168th: (See Exhibit B) ' Stormwater runoff from the eastern portion of the site is intercepted by an existing drainage ditch adjacent to 113"° Ave St. The ditch is approximately 2' wide at the bottom. The depth ' of the ditch on the west side adjacent to the lawn is approximately 1'. The vertical distance from the bottom of the ditch to the edge of 'pavement on the east side is approximately 3'. A 12" RCP culvert, located at the southeast corner of the property, conveys the stormwater to ' the south The downstream system begins at the 12" RCP pipe. Reach 1. From 12" RCP inlet to SE 168`/113"' Ave SE Intersection: At 195 feet south, there is a storm grate inlet with an unconventional metal grate. ' At 263 feet south and 6.5' west of the edge of pavement, there is a fairly new Type I CB "A" The inlet to CB "A" is 12" RCP. The outlet from CB "A" is 12" CPEP. The CB has a vaned grate cover. The measured distance from the IE of the 12" RCP to the rim of the grate was ' measured as 19". The distance from the IE of the 12" CPEP to the rim of the grate was 26". ' At 360 +/- feet south, the 12" CPEP enters CB `B" at the NW corner of the intersection. Stormwater enters the CB from the North (12"CPEP) and East (12"RCP). Stormwater leaving CB `B" flows to the SW to CB "Cat the SW comer of the intersection. ' CB "C" is approximately 420' from the site. 1 15 ' Reach 2. From CB `5C" to Low Point AloM SE 168`h: ' Reach 2 consists of closed conveyance system from CB "C" to the Type II MH located at the low point along SE 168th St. The Type H structure is approximately 890' from the site. The Type II structure is approximately 12' deep. An 18" CPEP enters the structure from the ' north. 12" RCP pipes enter the structure from the east and west. The size of the pipe leaving the structure was not determined. At the north side of SE 16e where the stream enters the 18" CPEP, the top of the pipe was labeled "E377". A pavement patch can be seen where the ' 18" CPEP crosses SE 16e. It is therefore assumed that the conveyance under the road has been replaced within the past several years. ' B. 'Western Portion From Site to Low Point Along SE 168th: See Exhibit B ' Stormwater leaving the western portion of the site flows overland to the existing conveyance system on the east side of I I la' Ave SE. The existing conveyance system consists of a ' combination of open ditch and culverts under drives. The open ditch sections vary in width and depth. The culverts vary in size from 18" to 24". ' Stormwater leaving the recently installed 24" CPEP discharges into a stream that varies in width from 3' to 6' with a flowing depth of 6"-8". The side slopes vary from approximately 4:1 to 2:1. The property that the culvert discharges to has recently been cleared and filled ' down to the edge ofthe stream. Sediment from the fill was observed to be entering the stream. This area is identified on Exhibit B. The stream flows to the southeast where it in intercepted by the 18" CPEP identified as inlet 'E37T'. The stream is generally in good condition with the exception of the cleared and filled area mentioned above. ' The distance from the northwest portion of the site to the Type H structure on the south side of SE 1686' is approximately 1400% ' C. Downstream System from SE 168' to 1166' SE: (See Exhibit A) ' Immediately south of SE 168th, the culvert discharges into a stream. Due to the presence of a 6' high chain link fence, the stream was not observed within this property. ' Stormwater leaving the first property enters the inventoried Soos Creek Wetland #1 to the east of Benson Glen. Stormwater flows to the southeast through Soos Creek #1. The wetland was observed from several locations: 1. E of I I e Pl. SE, 2. E of SE 172°' Ct., and 3. North of the Benson Dawns 312 -unit apartment complex currently under construction. At each location, the wetland was observed by walking out into the wetland area until the water depth was at the limit for hip waders. j1 I �L ' Stormwater leavingSoos Creek #1 enters the "Gainsboro " condominium complex. � Within the condominium complex is Soos Creels Wetland 10B. Stormwater leaves Wetland ' 1 OB within a 32"(?) CMP under 116' Ave. SE_ -rhe stream continues to the cast. The outfall culvert under 116' Ave. SE is approximately .7 miles downstream of the site. 2. E3 istinglPotential Problems Since the reconstruction of the culvert under SE 168d' St., and some of the conveyance systems upstream of the existing stream, there appear to be no existing problems. The potential problem identified in this analysis is the conveyance system from the southeast corner of the site to the existing CB at the northwest corner of the SE 168''/113'h Ave. St. ' intersection. In the existing condition, the invert of the 12" RCP at the southeast comer of the site may be too high. The conveyance within this portion of the system may need to be lowered to provide the site with an adequate depth for the outfall of the proposed detention facility. ' Additional field survey, and a preliminary storm design will be required to determine the extent of off-site improvements for the project. I II ' TASK 5: MITIGATION 1 The design of the Wilkins proposed residential subdivision will provide adequate mitigation in the form of providing detention and water quality facilities that comply with the recently adopted 1998 King County Surface Water Design Manual. ' The Wilkins Plat is considered as infill within a sub -drainage basin that has been significantly altered., due to dense development. The primary concern is that of ensuring tthat the project does not contribute to flooding of the existing downstream conveyance from the point where stormwater leaves the site downstream to inventoried Soos Creek t Wetland #1. Thelat is within the Level I Flow Control pArea and the Basic Water Quality Treatment Area. The project site is outside the Landslide Hazard and Landslide Hazard Drainage areas. ' The following addresses items 1 and 2 of the King county letter dated Nov. 8, 1999: l ) There were no wells identified. See Exhibit C- 2) There were no wetlands east of 111t` Avenue SE identified by our wetland specialist. See Exhibit D- 3) New conveyance facilities will be provided. Analysis of the new facilities and existing facilities will be provided during the design process. ' Inadequate facilities will be replaced. 4) We acquired a copy of Drainage Complaints 96-1260 and 75-0150 from Melanie Wasinger of WRLD Drainage Services Section. Case 75-0150 ' involves a plugged sewer drain. We talked to the present owner, Mr. Neil Helgeland. He said that he bought the property in 1978 and has not ' experience any drainage problems_ Case 96-1260 was a complaint made in 1996, and involves inadequately sized drainage facilities. The person who original made the complaint no longer owns the property. We spoke ' to the current resident Mr. Bob Lowe_ He said that he was not aware of any drainage problems on the property. He said that the present owner may have fixed the problem if any. See Exhibit E. 1 5) Plans have been prepared, and shows how the site will drain. APPENDIX I ' INF'OItMATION FROM KING COUNTY The items contained within this appendix were obtained from Ring County Drainage Investigations and are as follows: 1. Copy of King County Drainage Complaints Printout for Page 656 of Thomas Guide within Grids D6, D7, E6, & ET 2. Copy of Information From King County WALRD Basin Reconnaissance for Upper Portion of Soos Creek. FEB.17.1999 11-12AM KC WLRD i NO.189 P.4/7 1 'COMPLR TT PR09LEK TYK OF NEW NUMBFR PE ADDRESS PROBLEM COMMENTS TH BR ' 86-12% C 16623 BENSON RD 88-0772 C 87-0409 C 17665 111TR AVE 74-0072 C 17215 104TH AVF SE DRNG PVT DITCH 65606 656E-7 75 -WO C 16651 TOUR AYE SE oms i FuQ 656E-6 C C 11433 SE 164TH ST FLAG BASEMENT 656E6 l75-052 p 75-0150 C 16650 111TH AVE SE FLAG 111TR AVE W16M ST 656E-6 656E-7 76-0082 C 11609 SE 1647H ST DRNG NO PROS STSTIBI SHOULD HANDLE 656E6 77-0073 1: 79-0105 C 60 A 409 11 YE SFJPETIQVITS KY DOM 16 109TH AVE SE ORNG READ11IWR5/SO05 CRK FILLf617" AREA 558E-7 656E6 81-0107 C -1040 SE 172W ST FIAG 65M 656D6 DITCH MAINTENANCE/SILTED 52-0006 S SCHAEF#ER-YE11 RD SC1100FER-BER900 RD (STUDY) 65606 656E-6 82-0189 C 10890 SE 173RD ST FLDG FLOODING OF FIELD/DITCR MAINT 656E6 SE om 82-0215 C 10828 SSE 176TH DRNG CULVERT COLLAPSED 65607 82-0224 C 17325 M 176TH ST FLDG CASCADE VI,4TA 656E-7 62-02255 C NE115ON RD CULVERT BLOCKED-SCIAEFFER DRUG ST14Y 65606 '82-0499 C 11136 SE 164TH ST FLDG STANDING WATER 656E6 6Z-0548 C 116TH M 175TH ST DEPLETION OF INTER TO POND 666E-7 62-0566 C 77004 113TN AVE SE FLDG 656E6 C IM 1067N AVE SF ORMG RA SIDE DITCH 656E-6 '94-0084 84-0085 E 109t18 SE 164TH AVE FLOG TO CGDE ENF. 656E6 84-0085 C 10908 SE 164TH 5T FLAC TO CODE ENF. 686E6 84-0068 C 17041 104TN AVE SE FLOG CULVERT$ BLOCKED 65606 84-0096 C 16638 906711 AVE SE FLING 656E6 84-0247 c 11613 SE 164TN ST FLDG FRONT YARD 656E-6 84 -OM C 11417 SE 180TH PL SINKING YARD 658E-7 86-0907 C Tram 117711 AVE SE FLING STEAM TRRU AREA 6561:7 66-0907 ER 17500 117TH AVE SE PIPE TRF1t TO DMA-GRDG 656E7 86-1047 C 17663 . 111TH AVE SE FLING TO SMALL OF PIPE 656E-7 86-1047 C 17665 111TH AVE SE FLDG 1P/T-$?0Z03V[tnorrBy0Wt --IUD 656ET 88-0319 C 17827 1167" AVE 85-DQI C 1)803 105TH PLACE 88-0421 SR 17803 105TH PLACE ttib -U511 C 15836 106TR AVE aa -OSIS ER 16636 106TH AVE 88-0522 C 86-12% C 16623 BENSON RD 88-0772 C 87-0409 C 17665 111TR AVE E-9-0800 C E 1T661 109TH AVE '87-04113 87-050¢ x 656E-7 87-0502 x 17800 108TH AVE '67-0744 C MOD 108TH AVE SE DRUG 87-1063 ER 16839 109TH AVE 88-0319 C 17827 1167" AVE 85-DQI C 1)803 105TH PLACE 88-0421 SR 17803 105TH PLACE ttib -U511 C 15836 106TR AVE aa -OSIS ER 16636 106TH AVE 88-0522 C 11325 SE 168TH ST I-88-0522 ER 11325 5'E- 16871[ $T 88-0772 C 16548 115rN AVE 89-0265 C 16638 106TR AVE E-9-0800 C 11022 108TH AYE 89-0800 NDA 17022 1D8TN AVE i 21 VIP. SE FLOG BASINERT FLOODING 656DS SE FLDG 11UDEOUATE DROG/PuXIED 636E-7 66-1047 SE DW DITCH OMRUCTIGN 656E-7 65607 SE EASENT RELINWISH / RECOIMEID 65607 APPROVAL DRUG CM PERMIT 10 CffT--9599 6507 5E FLDG NEW APTARTWNT CAUSING RQUI 65606 PLOWING SP DRNG DRN9 DITCK/SLOPE/FRENCH GRAIN 656E-7 SE ORN4 SM1!M O 17803 105TO PL SE 65607 SE PIM' NO PROS STSTIBI SHOULD HANDLE 65607 STROMS SE DRNG RUNOFF MASHS OUT bkl%mmy 65606 GRAVEL SE DITCH INFO Cf To RD DRNG. 65M DRAG DITCH MAINTENANCE/SILTED 656E-6 CHANNEL SILT DITCH ON RF1D TO P.P_ 656E-6 $a DR116 MAIOFF/INRIVMY CULVERT 65VA S£ FLDG FLOODING OF FIELD/DITCR MAINT 63606 SE om DRMG Btd: UP 556E-6 SE DRAINAGE DRMG 6KG UP 636E-6 i 21 RWI46 t1- FLB.17.1999 11=1341 KC WL-FZD N4. 189 P.5/7 69-0413 Z 1702'2 Imm AVE SE ORNG NJEN1 (CULVERT APME) 89-0860 656E6 69-0636 SR 11ZD0 SF 164TH PL 111AINA6E POND OM11014 90-07D9,1061 6501 '59-0836 C 11200 SE 154" PL om POND ONERFLOH/STANDING W1TVt 65607 90-0261 C 17022 IOTA AVE SE DRNG HIGH WATER TAALF 656E6 90 -OM C 16710 116TH AVE SE FLOG FLOODED CM IITTAHD/STORM 656E6 C 16623 116TH PL SE FLI11; RAIN1 FROM HILLSIDEJSTORII 656E6 '90-0301L 90-0492 C 17611 10380 AVE SE FLAG GRAVEL FM ROAD INTO 65607 POND/STRmm-617 90-0492 SR 176t1 103W JIVE SE FLOWING /ND [NM 65607 STORM ' 90-0506 C 17611 1030 AVE SE DRNG SILTS AID 65607 VATER/STOR1V40-0617,1323 90-0617 CL 17611 WIND AVE SE ORNG MRJ6 FIM FRED 65607 METER/CLS12902 CALLED 90-0609 C 17704 114TH PL SE am SOGGY YARD/IN CRAESPACE M"T 9C-10553 C 10629 SE 173FM ST DRUG 7!8708 IN YA1W ANO HOUSE 65606 C 10810 SE ISIST sT SINKHME IN CORNER OF YARD 6507 '90-1387 90-1453 C 77931 105TH AVE SE SINKHOLE HOLE IN TARO FIM CONST 63606 90-1530 G 18427 112T9 An SE FLUE 656E7 90-1551 C 1aL27 IIZM AVE SE FLDG 66607 91-0069 C 16900 116Th AVE SE DRIES WATER OVERFLOWING C/O 65666 91-0069 SR 16900 11618 AVE SE ORNG NOT NPAP 65606 91-0113 C 16623 116TH PL SE DING WMD ORAINASE FLOWS I1IT0 YARD 65606 91-0290 C !7023 106TN AV SE FLOG DITCH NMIN7ENIdNCE/IEW DEVELOPENENT 65606 91-007798 C 115% SE 17M PL SPRING FILLING IN.OF POI%! 65607 91-0757 C 16630 106TH AV BE WT4 OLTP ;WFERED TO NEALTHMENTIST 63606 111TER 'OFFICE 91-0757 PN 16630 106TH AV SE UTR QLTT KEFEREP TO NEAL.TN ROT HDA4 656D6 91-1003 I; 17009 113TH AVE SE RLOMW TREE 11.0 uu IW.ET TO ONRf 65606 PIPE ' 92-0072 C 77023 106TH SE Dl1A(NIAL'E 85606 9z-0072 1NDA I7023 106711 SE ORAINAGE 65606 92-0143 C 16612 106TN AVE $E DRAINASE 65606 92-0263 C 17013 10ST11 AVE SE FILL/DNS DONHSPOIB FN NOBILE NOW 65606 92-0263 SR 17013 105TH AVE SE FILL/DNI6 NOT NDAP 656D6 92-007 C 16624 105TN AVE SE FLOWING ROAD MAUFF IN DIV 65606 43-0062 WOC 11930 SE PETROVITSKY RD UM97413 656E7 WOE 119313 SE PETROVITSKY RD %0047413 DIIHOING FLYER - SIORN DRAINS 66607 '93-0062 433-0065 1t0C 17735 105TH PL SE HOO97290 656D7 93-0181 C 17033 116TH AVE SF DRAINAIE SO= YARD 65607 43-008 VQC IT06 1167N AVE 93-OTA2 WC 11600 SE 16910 ST SE ILL CON OWINIG 65606 6UE6 94-0526 C 174120 1047H AVE SE EROSION PERF PIPE 00 NEIGH. LOT IS 656DT LEAKING 94-0625 1JOC 10345 CARR RD SUBST/C8 DUHPI10 OIL INTO CB 65647 %-0625 1710E 10545 CARR RD "ST/C4 DUWING OIL INTO CO 656D7 94-0630 C 16609 BENSON RD S SINKHOLE SINKHOLE DEVELOPING IN 656D6 DRIVEWAY ' %-0697 WOC 16634 9ENSON RD S ILLIN1aW FLOOR DRA11 APPEARS CONNECTS 6*616 TO ID 94 -MM WX 16639 GENSDN RD S iLLiNKLIP FLOOR DRAIN APPEARS CONECTFD 65606 TO 94-020 V= ,6651 ,06TH AVE SE POLLIITAN MINT OF COHMRCIAL SFOIOM SYS 65606 94-0799 WC 10MM SE 1747N ST POLLUTAN Niklu of COWRCIAL 470811 SYS 65607 INFOLTR a1 94 -OM C 104% SE 1741% ST FLOODING OPEN CIONEL M POW NO EASEIENTS 65607 95-0126 UQC 17616 111TH AVE SE O WING RESIDENTIAL CAR REPAIR - OIL 65607 RWI46 t1- FEB. 17.1999 11= 13AM KC 14LRD IVO. 189 P.&/7 1 , 45-0128 WE 17618 111TH AVE SE OUHPING RESIDENTIAL CAR REPAIR - OIL 65607 DUMPING. t 95-4365 C 17014 104TH'AYE SE ORNG SUBSTANDARD DRAINAGE IN RID 65W R/fi 95-0365 ER 17014 104TN AVE SE DRNG SUISTANDARP DRAINAGE IN IIID 65606 R/1! ' 95-0565 E 17014 104tH AVE 5£ DRAG Sf,I11STA1gARD DRAINAGE IN RID 658D6 RAI 9S-0468 C SE 1OSTN a 173110 A SE SLIDE 7 NETT R/D FACILITY SATETT 65607 ,� ,oUESTIOk 95-0492 C 11501 SE 1730 ST PONDDRNG WK!"SMANCE OF PRIVATE IIID 65W FACILITY 95-0W RK 7150'[ SE 173110 ST POIRIDRNG MIUNTI!%UCE OF PRIVATE #A 656ET ' FACIL17Y 95-0492 NDA 11501 SE 173{10 ST POOMM MAINYEWCE OF PRIVATE RIA 656EY FACILITY 95-0536 l,MaR 10817 SE 172nD Sr. MINT. VE111{LH: /ffA111T RFWS FOR Comm 656D7 95.0534 WDA 10817 SE 172ND ST. MINT. VEHICLE /M1A1NT BNPS FOR COMM 65697 95-055 IIOR 17425 120TH LN 5E MAIYT. 656EY 95-0539 WOR 16618 108TH AVE SE MINT. CAA WWRING 9 APARTMENT 65606 '. CQMPLFX 95-0539 =4 J"18 100711 AVE SE MAIM. CAR WtSNINC 9 APARTMW 65606 COMPLEX WOM BCM 16623 108TH AVE SE IMAINT. 65686 t 95-0059 C 17418 109TH AVE SE FLOODING BUILDING FLOODED FROM BLOCKED 'SSW 0/5 95-0956 BLit 17620 1081H AVE 9E SITE CON 85607 OW 17C% 108TH AVE SF CONSULT. 650T t%-IN* 95-1060 CL 70817 SE 172114 ST CLAIM BROKEN IRRIGATION LING 65807 96-0009 C '10700 SE 174Th ST ERASION APPARENT DIRECT DISCHARGE TO 65607 '96-oM C 11626 SE 166TH ST FLAG STORM EVEAT M ONNEAC L PROP 656[6 �r fh s 6 Gs �h/,& QLD I -6456 4 FLOWING Cn/H/ri • �raP P ufS��G SU� 96-%M C 17478 108TH AVE sE FL» OFFSITE FLOP 111PACTING CHURCH 65687 Out-5/de Saps Cr r34s- r 'PROPERTY 96-0438 R 17418 106TH AVE SF FLOG OFFSITE FLOP [HIPACT[RG CHURCH 45607 96-0438 [IDA 17416 1087H AVE SE FLDG PROPERTY OFFSITE FLOW IMPACTING CHURCH 656D7 'PROPERTY 96-0591 C 17405 1167H AVE SE CREEK PLUGGED CULVERT 656ET E-- 96-0757 C 17720 1747H PL 6E GRADING SHEET FL01I mm ADJACENT LOT 636[7 96-0936 1AR 17,00 116TH AVE SE OIL -POND SEND LfTTFR Y/MCL ATTACHED 656[7 ' 96-1136 C 16821 10578 AY¢ SE RUN OFF SHEET fU1W FH10M RD INP PIT 656D6 PROP 96-1196 WA 17642 106TH AVE SE SITE ON NEED TO [!PLEM01 V N"r 6356[17 96-1236 C 174,3 1131`9 AVE SE FLOG APPARENT IMPACT TO PVT PROP OW t OPER NDAPT7 96-1236 RR 17923 113TH AVE SE FLOG APPARENT IMPACT TO PVT PROP 656ET OPEN NNW77 96-1260 C 16606 111TH AVE SF MX OFF CR0tAMTER IMPACT PVT PROP 65606 PVT STS INA 96-1300 C 10911 SE 164716 ST BODS CRK APPAROIT BLOCKAGE IN ROW 65606 CULVERT ' 96-1649 t 10700 SE 17cTH ST DRNG D=SPWT LINE NAIYTENACE 65WT RESPONSIBILIT 96-1662 C 17418 108TH AVE SL FLAG SNEET FLOW FROM PARKING SEE 61607 9600B 65607 %-1662 R 17418 108TH AVE S6 FLDG SEE 96-0438: COMPLAINANT HITNDPa CMPLT ' 96-1662 R 17418 1017TH AVE SE FLOG SEE %_0438 65607 'Z3 FE$_17.1999 11=14AM KC WLRD 1 65607 SE M MFF GROUNDWITO FACT To PVT Paw 656DT 96-1662 NRA 17418 148TH AVE GAI11SBM C 77+478 108TH '96-2011 96-2125 C 17311 117TH LIVE SE EROSION SHEET FLOW FROM ROAD ERRING 96-2160 C 11667 SE 163M ST ' 97-0068 C 17012 10510 AV@ 656E7 97-0588 C 17314 119TH LN L'S ' 97-1142 C 11506 56 16470 ST DITCH DUPWING DRAINING OF SHIMMING '9Y -14T7 WDA 116U PET1GD1fITS" IMM S DRAINAGE PVT DRNG SW 14MS121D OR 97-1485 C 16609 BaMM IRI 6SW6 97-1185 I 16609 6ENSOH RO 5 pJWMW PVT DING SYS UNDERSIZED OR 97-1 AM 16609 BENSOY Ito ' 97-1593 C 104X% 5E 172ND ST 65607 913-0177 C 16655 !46TH AVE ' W -O28 " M 11916 SE 167TH ST MWING 96-0421 FCR 17611 114TH PL 656E7 98.0503 CL IrM 104711 AVE ' ge8 om C 17232 116TH AVE 98-0650 FCR 16921 lam PL SE FL06 SEE 96-0436 65607 SE M MFF GROUNDWITO FACT To PVT Paw 656DT SE DOG TREES IN C4JWL, 000 fM 656E7 GAI11SBM POW I NG IU1CtI11'ARD PCM INC DUE TO HEAVY 656E6 RAIN SE EROSION SHEET FLOW FROM ROAD ERRING 61606 SNCULDER SE DNAINAGE PVT MON SIT11ATION REIEDII:O 656E7 SETWEEN REI 0I1CN KRIS Ala Cmum IN US 65666 DITCH DUPWING DRAINING OF SHIMMING 656E7 MINEALTH DEPT S DRAINAGE PVT DRNG SW 14MS121D OR 6%06 CSSTRUCTED S DRAIJI M PVT MG STS J>11 MIZED OR 6SW6 OBSTRUCTED 5 pJWMW PVT DING SYS UNDERSIZED OR 6MM GOSTAUCTED PIPE POSSIBLE UPGPJWE OF CULV BY 65607 wv0S SE mu SHEET FLOW RM RD JW 65606 UNIMCIAL PROP MWING 65*6 SE DMIS "Ma PNEP IN WD TRACT 656E7 SE SIDt7iU SIDEUUK DAMAGE BY XC CREW. 65607 SE DRAINAGE UPMTIOLLED FLAIL PEAL VAM*G 656ET LOT SE OITCM Big SEW.9 VEGETATION SAL 65606 REQUIRED N0.189 P.7i7 2-4 FFR _?S_ 1999 9:?7AM KC bL PD NO -44-A P.2/6 �5 FEB. 25.1999 9.28W KC 14LRD NO. 443 P. 3/5 . Z6 FEB.25.1999 9.28A9 KC WLRD r A"ENDIX B CAPITAL. DdPROVEMar4i PROJECT RANiCM SOQS CREEK BASIN NO.443 P_4/16 Prior tc the Saps C ck vtvtc+em&d field pwo= Ud been idotui£W and mud aft the Cu W,p-tit, criteria *"ftped br ft Smfvm Water Ma rt Division avid the Natural Resm=cs and Fars Division.. Funowivtg the rerounaimsm % 2l ptge :+cnsam ptapo3ed for LhiaG aWL Ther Wdude the 7 Raw, PW60" unid�and ' unrated projmm pias the initial 13 projects. The pan=s SWM CaPtai 'mPmvaments Project list for the Soos Cmic Basin had an estimated cm Of SM -%M **ft the mvised ft decreases. Vg am cuftmaW oast of S2,622.tlOp. Tins 24% zeftcdm in estimated capital ccsts is due mainly to downward revised cau rjgum taracQuuU19 Or securing attsements *vm wedandL 'At; foilowiag table &==rh= tlm scorn and cans for the CIPS pioposed fc: the Hylebos Credt Sarin. The prvjems we= ratted aocordlug to Ix eviouslr established SWM Program Catiaea Advism Cammiraee crimria. The pzgecrs raniced below am those kw which dw mu raft question, ELEMENT I: 'GOMO-GO,' could be an"ered afrmntively. The proiccR ' can now be cWsWered for merging into the 'rive" CIP list. Any prajact uormg over IW pmum should be considered far ias0ip0r8tian Wto the si r-ye-ar CEP plans. RANK PR CT NO. SCORE ccsr 1 5415 135 S 156,000 3 5417 IV � ..moo ' 3 -94070 113 22um 4 5414 105 169,000 S 54W p 130 221,000 6 5416 98 65,4W 7 54020 95 194AM 8 5401" 59 153,000 9 5"' 33 17.9W TOTAL 51!4nOW LtdK2tes projdct was Wentifted by SWM prior to the reconnamace. 2.1 FEB. Z5.19% 9= 28" KC ILRD NO. 443 P. 5f6 y a .G a� 79 ' a m•� U .►��°4� U C 1 ' ss c ' "n' a 'Or- x: dC ' a e —' E e 0 IQ a n 21 E 0 t:: ic:c o „�= u = E E 2 tea E £�° u -C 3— Lo x z he Z rr al <z �'a❑ L' �y my c v b .V q .� p ti V s ,z n in CM c y w� eAc us os C_ C, Q I o -•v a, r e � 5 ' 4 a ti r r� C4, meN ' lii v a 0 4 r 7 „ Y x S i E Y O �.. PI t o .11LKC i tig 1 1 11 1 1 1 1 I� FES.25.1999 9- 29AM KC l RD c � V �f • Q C6 C v O k T► U ba 0 cc S. 0. C9 4 • w 2 IS p �2 E� p YA Z 4 o v E g = ---— 0 w yEo isto �c � '3 �•a a tb � � vim-_ m _ 2 V C Q � -+ � � � � 5 � � d G � � c 4 g a C 14 C C sw 49 ` mg r r E w 7 c 5 v9�S v°`+�ya we to y E � h IN.0 J y c � •C r - v G 4 r � r - V NO. 443 P.6/6 C N N 71 C4 r r VIN Is F1 oil �.� �`f� t ^� �` f t� � r �\ 1 Isle �1 r� f'` , •• � � .� EL, . 1 til �`�,�.�,�� 1 't 4 rr i� F I � i ❑ ^*`'.�- , ,•�•`�6' �, ,, •.,, m��,) {��v1 --- - - _......'—�...,'__ _..- � -'t�l� '�` X1;1 �, _,I�'•� ` � �1 .1 ^•_' .., ._ ., .00 el C8 .10 ,til � � + . � ` = y � 1^1 • y �` , r ! sIN .� j _1 .1 { •,.``rte I Sim mi =fr,.,Nw-.-- ' 01/14/00 09.45 ECOLOGY, N41RO 001 REQUEST FOR PUBLIC R: ECOR.D RA9NIMGT015 STATE 'PI A A 6 r Ie t Y r O r R1FQUF,,%TER: PIensC comPlcie foriu and submit to E C L d y "Public Records Cuordillator" of the state agena identified VAMP N 5TATT! AOrNCY- pAY>iorItCQ1J1357' 1,Ml�or•nsgTm> r DEPARTMENT OF ECOLOGY all(W04 t _PUBLIC RlA;i M ON INFORMATION R UNS'ITI? R UA.SI'hD BY WATER WELL REPORTS ON SIGA'OOS TOWNSHIP: 23N RANGE: 5E SECTION: 29 HALEY-MORROW _ 'ADDRESS: 16613 113 r AVE SE POBLETE INC OWNER: JOHN WILKENS ' NOTE: I WAS UNABLE TO LOCATE REQUEST. } I HAVE ENCLOSED THE ONLY WATER WELL REPORT FILED FOR THE ENTIRE SECTION. ''FED l3Y A 3E.N .Y AL'KtJ LLL:I3EM T Or RkCPII'l lt1 'T6ii REAL) Aldi) S1t�N OF COPIES AMOUNT It1 i�rlVEll DA'ji OF 1tECFIPT TIME Ol' RiiGEiP'1' ulydefstand that If a lest of individuals i5 I NO CIIARGE 01114/00 09:03 rovided me Ivy the Depwlmoni of ' PUBLIC } LUORFJS OFFICER Cology, it will neither be used to promote ANGIE GALBRAFI`11 c ection of an otiloial or pfolnote or 1LI?AS()N if AGFNQY IS UNAULE TO WMrLy ;Ppeolsl a ballot ptoposilion as prohibited ' y RCW 42,17.130 nor for cornmor6d rpozes or giV6 or provide access to ItAtmittl to others for conn cru-ial purposes a }rrohibitcd by RCW 42.17-260(9). ' lyuttderstMd thatl will be charged .I5 �!s per copy for all xtundard lcitcr size sbpie9 i daairc acrd that other sirs ' bliantipbg arc' available a[ cvsl. Ec010,9y is ari Bgwd Oppodunrly and Aff rmatrre Action Employer LCY 11111-37 (Kov. 11/9$} �E - ' IF YOU 0WE AN AMOUNT: WEACCEPT CHECKS ONLY, NOCASH—NO CREDIT PLEASE MAKE CHECKS PAYABLE TO DEPARTMENT OF ECgLOGY (OR DOE), PLEASE FAX A COPY OF THE CHECK THE SAME DAY THE CRECK IS MAILED, ' PLEASE ADDRESS THE ENVELOPE TO MY ATTENTION. OUI2--MAMI.NG ADDRESS IS LISTED BELOW. THANK YOU. DEPARTMENT OF ECOLOGY NORTHWEST REGIONA►.L 6FFICE COIR SIfEET/RRQUE, ST FORM: DATE 01114!40 TIME; 09.03 #0F PAGESBEING FAXED: 2 '— TO: JON SIGAFOOS _ FAX ft: E (253) 854-6663 FROM: ANGIE GALBRAITH CENTRAL FILES FA -N 3190 160" AVENUE SE, R LLEwri, WA RECEPTION (425) 649-7000 #: (425) 6494450 98008-5452 fi1(Ni8/TCS 1 1 4 1 1 01/14/00 09-46 ECOLOGY, NWRO 002 P"ar ewif swc%ft WATER WELL REPORTi rrowordo La py orals OF WASM&MN div . .... .... . -- ................ Addrew.j. 42) LOCATIONOF WEa; ... . ...... ........... .. ....... ....... j 7-jt"1211! "d dftt&hob UOM SOCOM or subdivision *om*r Lg 11 (3) PROPOSED M& Daffiewtse pf, lndttnrtal 0 M—WPII 0 6-6 —WELLLA)6.- fj,rl9&tI4m 0 Tat Well, 0 other 11 1 ftrIn4fleft: De"vibebbir (4) TYPE OF WOjtK- Owner's cd well Lumber Of mos heM Gn*).j�4 .......... ...... ............ ..... New well 0 Bored 0 Ekoopenod ❑ Cable 0 briv4m 0 ,R*v*r*djtlon*d Q , Jetted 0 (5) DIMENSIONS: DwLmeltr Of won .............. C Druled, -.1.1 ... C-7 ........ ft, Depth Of completed won . . ........ (6) CONSTRUCTION DETAU6&- Casiat Imt4led. Diem, from tL to n. Thl"d*d 0 btftM. fj10M ............. n- 40 ....«.._-... ". W*Idtdll* Diem. tram ft to POrftlrit�tad�3: Yes (3 �pY4[ Ty" of Pezioristar R -NZ of oerforat3om ...._...,..«..«.......____._ t", by JWL PerftlIk"Oft t8VGF% K. to Par&r*00" ft -am ft, to ft. jP,#r&rM*0tW Irwn ti, to ft. svve= Yoe 0 No T3 — -- --------------• --- -- - - - - liteeet Ns__ - _.. lxwa ---------------- lxwa» . !31°k dss . ....,. « Iran . . ......... bi-M. trom._— it. Gr*vcl packed:- y" C, Ego C�, Size 6f gravel., Cr&V^z j-ljkte4 sudsco MMI: Ys',* r4o 0het deptht id xaterlused in.... r- - 1Xd "Y strati contAin unuoWe, water} Yes El 21"M VC Water?....... MPM at PlalbAA of istanno atrata (7) PUM: 2 1*4!w r ----------------- A— (9) WATIM LEVELS: SLOW; 1VVd below 10P of ymn Dmo-;Lz-- per sqUftv ljxh D&W—. ' AritsEw pteertere _ �_._ Sbr. AjUsiam water 10 09aftgled by... —idw, —va""Wr (9) VvpjffTESTS-. Drawdown njw&jer 1!•961 Is oW below tIO ,evel Was & pump ten made? Yea C3 No 0 u yft, 1�y Workpump Yield- with - ft. drawdowns atter has. WELL DRILLEAI� This well was d4V ' •• true to the best of �n AL—Vory 4wift 01� e #Okn ON t*Lo when Dnp turned off) (water 1"01 F !rnc"uj*d from lwEll top 16 water JeVej) rtme . WOPtr &4�.t Time Waltr fAmmA Time Wow L*..1 .. . ....... .......... . . . ....... . ........... . ...... ..... ............. .. . .... —..— ... ..................... prem.................. .. .......... - -------- ........ Date of UMt ...... .. . .......... -­­ ... ............ Aller test d"I"Afdow1" after -h [Signed) .................. -4 . . ......... . .. . .... ................... Ir.PXA. Date-- ----------- -- - ----- TcmPeralu-t of we,tcr ...... W� a 1wh*Frjc&j analysis made? yes 0. No 0 Ueense No .. . ... VVSz ADD) OZ9AL SlUns it pq= 7-- STATERMF". d under iny Jurisdiction aLnd this report is knowledge and belief. k firm, or vor"Isi - oir tir . i .......... A4r" . -0-f4ll �Aw,.w If 2-2 ...................... I............. Date ........... (0 1 J. S. Jones &imd Associmtes, January 4, 2000 John Wilkens 5201 Lake Hurst Lane S.E. Bellevue, Washington 98006 RE: Downstream Analysis of Wetlands and Hydrologic Patterson Wilken's Plat L99P301O Dear Mr. Wilkens: InC. Drainage is split in all directions on-site. Easterly sheet flow is intercepted by the 113" Ave. S.E. road ditch. The 113th Ave. S.E. flows south to catch basin "B", at the intersection of S.E. 168"' St. and 113"' Ave. S.E. and then west to Soos Creek. Northerly, westerly and southerly sheet flows are dispersed and infiltrate into the "moderately well drained" soil. Surface flow is not evident. Southeast of the site and north of S.E. 168"' St., Soos Creek is in a confined channel. Wetlands adjacent to this charnel were filled prior to wetland regulations. No other wetlands were observed east of 111`f' Ave. S.E. The channel originates at a 24" corrugated metal pipe where Soos Creek reaches 111 "' Ave_ S -E. South of S.E. 168`x` St. there is a broad well developed wetland adjacent to Soos Creek. Soos Creek is 300 feet southwest of the southwest comer of the site. It is unlikely that water quality in Soos Creek could be adversely affected by sheet flow off the site to the north, west or south_ Sheet flow, during heavy precipitation, could make its way into the road ditch along 1 13th Ave. S.E. and flow directly into Soos Creek. "Best management practices" should be implemented and carefully maintained during construction activities along 113"' Ave. S.E. Monitoring the water quality in the road ditch or at a downstream catch basin is an added option that would document. compliance with state water quality standards. Hydrologic cycles in Soos Creek Wetland #I. should not be adversely affect by this plat. ' The wetland is larger than the inventory indicates, probably over ten acres. The affect of changes in inflow rates will be moderated by the size of the wetland and flow in Soos Creek. ' Very Truly, Jeffery S. Jones ' Certified Professional Wetland Scientist cc: Alex Poblete, P.E., DMP, Inc. 1 3408 52nd Place, N.E. TACOMAiNGTON 98422 6"O"111'IrR 1 253-942-77I133111!FAX 253-942 -7132 1 1 1 1 1 1 1 i rr 17-. �,t sn'I .� Photo Date: 05/01/80 Inventory Date: 08/04/81 NA VVETLAND: Soos Creek 1 COMMUNITY PLAN AREA: Soos Creek LOCATION BASIN OR (S,T,R): NESE 29,23,N, 5E DRAINAGE: Green River SE -SE 29, 23N, 5E ACREAGE: 7.1 SENSITIVE AREA MAP#: 5 CLASSIFICATION: Fish & Wildlire Service Common Name PEMS Palustrine Emergent Narow- Shallow Marsh leaved Persistent (Cattail) NOTE: 1 IPVWJM Scale: 1"=500' Wetland boundaries sbown are approximate. Further field studies are necessary to confirm the actual delineation c the wetland according to the Federal Manual for Identifying and Delineating Jurisdictional Wetlands. 1 Soos Creek 1 OBSERVED SPECIES (refer to Appendix 1): Trees: Shrubs: SX Herbs: SP TL Sedges/Grasses/Ferns: SE JE JX JT LM PA SV Birds: MA ARB MW Mammals: ' Fish: Other: 1 HYDROLOGY: Inlet: IYPe` Condition: Outlet: Type: Open channel. Condition: Partially blocked. ' Outflow enters: Stream. Water movement through wetland: No visible movement (but water moving from outlet). ' Observed water quality in wetland: ISIGNIFICANT HABITAT FEATURES: 1 GENERAL OBSERVATIONS: Fill has been pushed into wetland in NE corner. 1 . WETLAND RATING (see Introduction for criteria): 2 1 NOTE_ species listed are only those observed during Feld visits. Further field studies are necessary to obtain a complete Hsi induding rare, threatened, and/or endangered species. 0- t--NOV. 19. 1999 8:44AM KC WLRD NO. 654 P. 114 ' WATER AND LAND REsouRas DIVISION KING COUNTY tzQ 1 SOUTH TACRSON S'£PLEET, SUM 600 SEATTLE., WA 98104 DA'I'S' _ l ' NUNSER OF PAGES: 4- FAX ' FAXED BY' 7(::= FROM[:—Melamnie Wxlin_ merMI Draina a ServicesSectiPhone, 206 296-8 171 FFaxNumbez 24 296-0192 P LFVEL 1 L11515 ' t of cam Taints received by the W stet and Land Resources Division To follow 1s a lis P un riot to 90-� ) Drainage Services Section. Complaint numbers beginning P nest_ If you are ' are located at our .Archives Office and can be obtained upon req the actual compla�nts,1 cava pull them for your review, time interested in reviewing P ea 25 or each dditional be ab erm.itting. Copies can taxned for $.50 for the fust ag $- fa ' page (8- 112 x 11), an d $2.00 per page. for plans. ' DITIONAL NOTES: 1 G:\DraiDage\w?l i56M'w NOV-19-1999 8:44AM KC WLRD NO.654 P.2/4 T Qr PU3UC WORKS � COUNTY D PA7r%Tt,r�.�f�1 NNA+=R I1�hiti�. s�lJ.=hrf tiIVlSIDN C CoMp AINT IHVFS-nGAT1 �r Ca .Q.]-��•�• ` r 1 , _ � .. » Ssere.�--^�'''1' "'�_ � SRI'` - '- Clay �� 1 C DF BPillh'T � - qM?l#• � Sre;;,�v:rrevs=sid::Yes7t�o� _ c.+•��r _ . i '-�IOV.18.199 S:44RM KC WLRD NO. 654 P.4 .A • �� ��� NT o 3/ iViSION P"-"?- Received by: Received from: NAME:_&e� KING COUNTY SURFACE DRAINAGE INVESTIGATION PEpORT C. Page 1: INYFSTIGATION'REQUESY Type Date: - /in /4z_ OK'd by: (piaase fxirtl plainly for zcaw1nA)- (aaY) ADDRES LDC,,tjon of problem. 0 different Reported Problem: A& z,. / i e � • �0 of • ,/ i 1 4xb a, ;of ! i (Eve) Lot No: � Block Na: ' Plat name: /`7' � �� j ��.���' �p No Feld Investigation Needed other agencies,lnvolved: Fil 10e -Z 4/ Parcel Na. D Q ro o � p 7 Kroll %0! � Th.Sros: New 6154; V4 Old 1 _2� 114 5 T R 141 F5 Basin S DQ Council Dist (0 Charge No: q 2- A 5 ' - �5f' Vol RESP01vsF. Cltizen notified on _ by ?C phone _ Setter in person (_ w G� �" CF r � z t=y+� �Na w wN�7 �fi 5 F u-�A f �� �cT IJid �Wi9G, t:) r � • �.H .J/.�o cu S A/, r A4 IAvI w 1t!!LL sCN� �,�oaes l�sr C�aS �� OR: Na fur[t►er action recommended bei pISPpSirIQN: Turned to. an by �-� �p l mad agency has been notified: rcJrC�e n itientiilea• No problem or ir+Westigatron addresses probi ' Problem alas been corrected. Sae File Private pro¢iem - NDAP will not consider because: . water originates onsite and/or on neighboring parcel SWM Service Ar Other {Specify): ^, Location is outside l %l CL OSOD_ . I by- DATE/� rr� —NOV _18.1999 8:44AM KC ILRD King County surface Water Management DRAINAGE INVESTIGATION REPORT FIELD INVET NO. 654 P_4/4 FILE No. 96-1260 NAME CINDY WALTER ADr)"SS 16608 - 144TH AYE SE PHQNB 227-0441 TB PAC -8 BSB -DB XRO" PAGE 881E DATL 7-45-9$ MADM DvaslQN # II3TrL&Z3 . 1MAAM DETAIIS OF niVESTiGATION: FROM 141U.SIDE. THE SITE VISI3 ON 6.2x'26- FRE"CH DRAIN NOT ADEQUATE TO ACCOMMODATE NS;,(ALLY-D TO HELPLLF-c T. INVEs'iSG4ATIDN FOUND A �" 1NFlA IHS T�TION PIPE lA1:D DRAINED T TG UNDER THE H US AND PVT IN A $ �P PiilOR OWNER HAD INsTALIEDOW WHpRFNOT Pl1WP. IN TAL-KITIG WITH YHA- OWNER SHE SHES LOCATI±D.'IHISDRASINDHAS A PIPE W CH 1 DELIVE TO BE FORM THE SUMP Puuv' THE PROPERTY A BASIN W TW TEST A A` P1>'E OV7L�T 7O O�'IAMCiTH 1HT80 714E MSM. T ms c K+ PE TIES INTO AA T� FOUNDTHIS IISASN , AND �1DDEf: ALLGWING WATER UNDER A Fin TREE. Ttlis pASW TIES INTO THE ROADSIDE DITCFI A� i8 iN NEED � CLEANINti� AND PIPES DEINQ FLUSHEV-MM WAS - PHOTOS # Z LOOKING AT HE SIDE OF TiiE 1i8U E WHERE a ALT THE DACKyARD WHERE (SUMP PUMP INSTALLEM 1lISTALLED. 3 LGO)allo At THE ROADSIDE DITCH. 1A` PIPE IS OLD DITOH PIPE STILI. CONNECYED. $KETCH ui V) ul Y T" a y SLOPE DIREC"QN REA� 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 cm W 4t J +' m y H 0 L W Cr }f W co m 1 L o E U) R CD z C L a �: to P� U5 0 1; ICU L� o� J Fcztt 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 N W :m J 'o-' M C w� �- Cr ca 0Lu , Q U j a E U) C Z C ao Z L Q °D to U) N Fn 0 � "C oU) 11 zi v lo a✓ x � A � O _v i allf f � a 4 J�l zi v lo a✓ x � A � O _v i allf f � a J (9 v a✓ x � A � O _v i J (9 v a✓ x � A _v i J (9 SECTION IV FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN ' EXISTING SITE HYDROLOGY The Plat of Wilkins Wood is located on a 1.54 -acre parcel within a portion of the ' Southeast, quarter of the Northeast quarter of Section 29, Township 23 North, Range S East, Willamette Meridian, King County, Washington. It is located on the west side of 113'h Avenue SE, between S_E_ 164'h Street and S.E_ 168'h Street. ' This project site is situated within the Upper Soos Creek Sub -basin of the Soos Creek basin tributary of the Green River Drainage basin. Presently, the site contains an existing residence near the center of the site. The remainder of the site is undeveloped and is ' covered with grass and a sparse scattering of shrubs and trees native to the Pacific Northwest. The ground slopes away from the center of the site in all directions. Runoff from the site sheet flows to all directions from the center high point of the site. The flows ' to the east are intercepted by the 113`' Avenue SE roadside ditch and drain to the south. The properties to the north and south are residential and do not receive much runoff. The property to the west slopes west to 111th Avenue SE_ The soils on the site are Alder -wood Gravelly Sandy Loam (AgQ as classified by the US Soil Conservation Service. ' Since runoff, from all sub -basins within the site, drain to the same threshold discharge area, the total site area plus R.O.W. area was used in determining the allowable peak flow ' rates. The basin and data are shown in the Existing Condition Basin map. Allowable peak flow rates can be found in page 3 of this Section_ fl 1 u ENS TING eONPrr1ar� I ASi l MAP .SCALE: I"= 5o' RIA A a � a � o � 0 0 v k tA C3 t N � y n F ENS TING eONPrr1ar� I ASi l MAP .SCALE: I"= 5o' �/S Tlitl� CDn�QITIDI1i KCRTS Command ------------- CRATE a new Time series ------------------------ Production of Runoff Time series Project Location Sea -Tac computing series A:PREflEv.tSf Regional Scale Factor 1.00 Data Type Reduced Creating Hourly Time series File Time series Computed Flow Frequency Anal ysi s Time Series File:a:predev.tsf Project LoCation:sea-Tac I--- Annual FloRate (CFS) Peak FLOW Rates --- Rank Time of Peak Loading Time series File:C:\KC_SWDM\KCRTS\STTF60R.rnf 8 Till Forest 0.50 acres scaling Yr: 8 8 Loading Time Series File:C:\KC_SWDM\KCRTS\STTG60R.rnf 8 Till Grass 1.06 acres Adding Yr: 8 0.316 Loading Time Series File:C:\KC—SWDM\KCRTS\STE160R.rnf 8 impervious 0.12 acres Adding Yr: 8 Total -------------- Area 1.68 acres 0.136 Peak Discharge: 0.317 CFS at 6:00 on ]an 9 in Year 8 6 2.00 0.500 storing Time series File.A:PREDEV.tsf 8 Time series Computed Flow Frequency Anal ysi s Time Series File:a:predev.tsf Project LoCation:sea-Tac I--- Annual FloRate (CFS) Peak FLOW Rates --- Rank Time of Peak 2/09/01 2:00 1/05/02 16:00 2/27/03 7:00 8/26/04 2:00 1/05/05 8:00 1/18/06 16:00 11/24/06 3:00 1/09/08 6:00 -----Flow 0.143 4 ' 0.082 0.175 7 2 Prob 0.050 8 Period 0.085 6 ' 0.150 0.136 3 5 0.175 0.316 1 0.960 computed Peaks IQ,00 0,900 0.143 2/09/01 2:00 1/05/02 16:00 2/27/03 7:00 8/26/04 2:00 1/05/05 8:00 1/18/06 16:00 11/24/06 3:00 1/09/08 6:00 -----Flow Frequency Analysis------- - - Peaks - - Rank Return Prob (CFS) Period 0.316 1 100.00 0.990 0.175 2 25.00 0.960 0-150 3 IQ,00 0,900 0.143 4 5.00 0.800 0.136 5 3.00 0.667 0.085 6 2.00 0.500 0.082 7 1.30 0.231 0.050 8 1.10 0.091 0.269 50.00 0.980 HIM 1 1 DEVELOPED CONDITION HYDROLOGY It is proposed to create 10 single-family residential lots. The existing house will be removed as part of this development. An access road, access driveways and utilities will ' also be constructed as part of this project_ A combined detention pond/ wetpond will be constructed near the site entrance. An appropriately sized conveyance system will be constructed to collect runoff from the proposed project_ Flows from the site will be collected and conveyed to the stormwater facility. The stormwater facility will be constructed pursuant to King County Standards for Level 1 Flow Control. Due to the topography of the site, a portion of the developed property will drain to the west and bypass the proposed detention facility. The pond will be oversized to compensate for the bypass. The bypass area will be mostly backyard areas, and is shown in the basin map in page 6_ The areas draining into the proposed detention facility are also shown in the map. Data used in generating the peak flow rates are in page 5. Impervious areas for each lot were calculated based on the available building areas, plus the driveways. Peak flow ' rates for the bypass and developed areas are in pages 7 and S of this section. 1 1 1 1 1 1 1 1 1 1 1 1 la 1� ...00va Oen Nrmo(�](Orr(Dr �r-�vaa�(�i comtot�t�cl,cp r L1J N r O 0 0 0 0 0 O O O O O O LLJ LJJ r a r U U QQ , o U Qr� Q C)C> 113 z } rn r oz O o C7 r as oo � Q1 0 v�ar7r�vvti(o Q fl w Q ❑ 0 w C) 0 Lu C) QCLacQ UJ 11 ` UJ °- LU Z¢cn 0 0 R'❑Lt 0 a- < LL, a + + 0 V) �m O L N O O O r 0 Cl C] m W) a}LL "mNO"C13mNNOOr) N N N N N N N N N N ('7 N � 7 Q O (oil- M O O O M CD Nrr J ('7u7N rO cc) NrNNti1` N IT IT CO IT 433 O IT I' to -q N N N N N N N N N N N (mil ... LLI w 0)vLf) (Da'sLf) CnODODrnrn OO W 0)0)aD y N+- O r O C] 0 0 0 0 0 O O (O Q LU O O o o a o o o Q o 0 o a 0 o r �c V) o O Q r, Q 11 _ 1� 00 m O O In V -T 0 w LU IT *- Z r cry O m N O 0� m O M m m (p L[) .. (0 di r OD O r Cr) CD (D C] I- M f7 I- 1� C) O c O Y Q LLNL NCOMNC7C7c9 V MV W me)Nte) O ? O L O U) 0) 1 LLJ LJJ r a r U U a LU O Q � lJJ � Q In Lli J C) DO LL im LL 0 < CYC) or LLI(f) U) LL�0 Q LLI Q w #11 iJ3 Q o J U w� aQ 2ct F- Q t J 0a �::7 N 11.1 F- 0 z 0 QQ , o aF-�a Qr� ou 0 W C)C> 113 z _ co co ZZ co 0 w ❑ LLI z 0 0 Z 0 0 Q fl w Q ❑ 0 w C) 0 Lu C) QCLacQ UJ 11 ` UJ °- aa¢my0 � F- F- F- O Z¢cn 0 0 J Q O U U C) C7 r N C7 Q fD t- 00 o) 0 a- < LL, QQ F-F-1-t-1-F-F-F--I--H 00999900000000000 a LU O Q � lJJ � Q In Lli J C) DO LL im LL 0 < CYC) or LLI(f) U) LL�0 Q LLI Q w #11 iJ3 Q o J U w� aQ 2ct F- Q t J 0a �::7 N 11.1 F- 0 z 0 1 11 1 A91JOWS wleA (4e*m o,&.y) ea To PbAvD DEVELOPED COIVDMON bASC1V MAP Se4LE: !": 50' KCRTS Command ------------- CREATE a new Time Series ------------------------ Production of Runoff Time series Project Location Sea -Tac Computing series A:DEV.tsf Regional scale Factor 1.00 Data Type Reduced Creating Hourly Time series File Loading Time Series Till Grass 0.33 acres Loading Time series Wetland 0.10 acres Loading Time Series impervious 1.11 acres -------------- Total Area 1.54 acres Peak Discharge: 0.601 CFS at 6:00 on DEy6u)t'9D G6Ay.Drr1,)A1 File:C:\KC_SWDM\KCRTS\STTG60R.rnf 8 Scaling Yr: 8 File:C:\KC_SWDM\KCRTS\STWL60R.rnf 8 Adding Yr: 8 File:C:\KC__SWDM\KCRTS\STE16OR.rnf 8 Adding Yr: 8 Jan 9 in Year 8 storing Time Series File:A:DEV.tsf $ Time series Computed Flow Frequency Analysis Time series File:a:dev.tsf Project Location:sea-Tac ' ---Annual Peak Flow Rates --- Flow Rate Rank Time of Peak (CFS) 0.312 6 0.254 8 0.372 3 0.283 7 0.338 4 0.318 5 0.41,2 2 0.601 1 Computed Peaks 2/09/01 1/05/02 2/27/03 8/26/04 10/28/04 1/18/06 10/26/06 1/09/08 2:00 16:00 7:00 2:00 16:00 16:00 0:00 6:00 ------Flow Frequency Analysis-------- - Peaks - Rank Return Prob (CFS) Period 0.601 1 100.00 0.990 0.412 2 25.00 0.960 0.372 3 10.00 0.900 0.338 4 5.00 0.800 0.318 5 3.40 0.667 0.312 6 2.00 0.500 0.283 7 1.30 0.231 0.254 8 1.10 0.091 0.538 50.00 0.980 I VAA�S ' KCRTS Command CREATE anewTimeseries ------------------------ Production of Runoff Time series ' Projeet Location : Sea -Tac CUMPUt i riy Ser- } e5 a: Bypass . is i Regional scale Factor 1.00 Data TVoe Reduced ' creating Hourly Time series File Loading Time Series File:C:\KC_5WDM\KCRTS\sTTG60R.rnf 8 Ti i i Grass v . i"r acres .�Cwi i ng f r : � --------------- t Total Area 0.14 acres Peak Discharge: 0.030 CFS at 6:00 on Jan 9 in Year 8 Storing Time Series File:a:bypass.tsf 8 ' Time Series Computed Flow Frequency Analysis Time series File:a:bypass.tsf TI UJCLI. LVLQLIVII. acQ-IQ%. ---Annual Peak Flow Rates --- Flow Rate Rank Time of Peak (CFS) 0.012 4 0.006 7 0.01.6 2 0.003 8 0.007 6 0.013 3 0.012 5 0.029 1 Computed Peaks 2/09/01 2:00 1/05/02 16:00 2/27/03 7:00 8/26/04 2:00 1/05/05 8:00 1/18/06 16:00 11/24/06 3:00 1/09/08 6:00 Flow Frequency Analysis-------- - - Peaks - - Rank Return Prob (CFS) Period 0.029 1 100.00 0.990 0.016 2 25.00 0.960 0.013 3 30.00 0.900 0.012 4 5.00 0.800 0.012 5 3.00 0.667 0.007 6 2.00 0.500 0.006 7 1.30 0.231 0.003 8 1.10 0.091 0.025 50.00 0.980 PERFORMANCE STANDARDS PART C The project site is within the Level 1 Flow Control and the Basic Water Quality Treatments areas_ Pond sizing calculations are included in pages 10 through 14. The ' bypass areas were considered and compensated for in the design of the proposed detention facility. The table in page 13 and the graph in page 14 show that the 2 and 10 - yr peak flow rates were not exceeded. FLOW CONTROL SYSTEM TART DD) ' The detention portion of the combined stormwater facility is required to have a storage volume of approximately 8,604 cu.ft_ In page 10, the required volume is compared with ' the proposed pond volume, which is approximately 20.7% larger. The proposed pond details are included with the plan set. The vertical gate, overflow riser and emergency overflow structure are sized in pages 15 and 16. WATER QUALUY SYSTEM PART E The sizing calculations for the proposed wetpond are included in page 17. The required storage volume is approximately 5,538 cu -ft- We are proposing approximately 1,565 ' cu.ft. in the first cell and 4,254 cu.ft_ in the second cell. Volume in the first cell is 28% of the required storage requirement, while volume in the second cell is greater than 76.8% of the required storage volume - I Retention/Detention Facility Type of Facility: Detention Pond 2.00 H: IV 66.64 ft 33.32 ft 2220. sq. ft 4076. sq. ft 0.094 acres 3.00 ft 464.00 ft 8604. cu. ft �--- V06UMj�' R4Qu/QE'D 0.198 ac -ft VOLUME CNECK 3.00 ft 12.00 inches EL =467 A = 4425 SF ' Orifice # Height Diameter (ft) (in) 1 0.00 1.42 2 2.25 1.40 ' Top Notch Weir: None Outflow Rating Curve: None 1 Full Head Pipe A=3 Discharge Diameter EL. As .2, (CFS) 095 (in) Vr = Ar 4- A �1+1 -,Aej ��3 0.0.046 4.0%.[-q 2 692 # Sf25X2G'� �'�j Stage Side Slope: ' Pond Bottom Lenqth: (ft) Pond Bottom Width: (ac -ft) Pond Bottom Area: ' Top Area at 1 ft. FB: 0.000 Effective Storage Depth: 464.01 Stage 0 Elevation: ' Storage Volume: 464.03 Riser Head: 0.002 Riser Diameter: ' Number of orifices: Detention Pond 2.00 H: IV 66.64 ft 33.32 ft 2220. sq. ft 4076. sq. ft 0.094 acres 3.00 ft 464.00 ft 8604. cu. ft �--- V06UMj�' R4Qu/QE'D 0.198 ac -ft VOLUME CNECK 3.00 ft 12.00 inches EL =467 A = 4425 SF ' Orifice # Height Diameter (ft) (in) 1 0.00 1.42 2 2.25 1.40 ' Top Notch Weir: None Outflow Rating Curve: None 1 Full Head Pipe A=3 Discharge Diameter EL. As .2, (CFS) 095 (in) Vr = Ar 4- A �1+1 -,Aej ��3 0.0.046 4.0%.[-q 2 692 # Sf25X2G'� �'�j Stage Elevation Storage (ft) (ft) (cu. ft) (ac -ft) 0.00 464.00 0. 0.000 0.01 464.01 22. 0.001 0.03 464.03 67. 0.002 0.04 464.04 89. 0.002 0.06 464.06 134. 0.003 0.07 464.07 156. 0.004 0.09 464.09 201.. 0.005 0.10 464.10 224. 0.005 0.12 464.12 269. 0.006 0.22 464.22 498. 0.011 0.32 464.32 731. 0.011 0.42 464.42 968. 0.022 0.52 464.52 1209. 0.028 0.62 464.62 1455_ 0.033 0.72 464.72 1704. 0.039 0.82 464.82 1958. 0.045 0.92 464.92 2216. 0.051 1.02 465.02 2478. 0.057 1.12 465.12 2745. 0.063 1.22 465.22 3016. 0.069 1.32 465.32 3291. 0.076 1.42 465.42 3571. 0.082 7.52 465.52 3855. 0.089 1.62 465.62 4144. 0.095 1.72 465.72 4437. 0.102 1.82 465.82 4735. 0.109 1.92 465.92 5038. 0.116 2.02 466.02 5345. 0.123 = /01 S &ts V-- da, SGS l 460"AG9l34a6t: =�a�� - >K 1.93xg8 = io,3837860Y",4 � �P"ercolation Area Discharge Surf O 7o.7 l0 F. ' (cfs) (cfs) (sq. ft) 0.000 0.00 2220. Os 0.007 0.00 2224. 0.009 0.00 2232. 0.012 0.00 2236. 0.013 0.00 2244. 0.015 0.00 2248. 0.016 0.00 2256. 0.018 0.00 2260. 0.019 0.00 2268. 0.026 0.00 2309. 0.037 0.00 2350. 0.035 0.00 2391. 0.039 0.00 2432. 0.043 0.00 2474. 0.046 0.00 2516. 0.050 0.00 2559. 0.053 0.00 2602. 0.055 0.00 2645. 0.058 0.00 ,, 2688. 0.061 0.00 2732. 0.063 0.00 2776. 0.065 0.00 2820. 0.068 0.00 2865. 0.070 0.00 2910. 0.072 0.00 2955. 0.074 0.00 3001. 0.076 0.00 3047. 0.078 0.00 3093. 1 0 2.12 466.12 5656. 0.130 0.080 0.00 3140. 2.22 466.22 5973. 0.137 0.082 0.00 3187- 2.2b 466.25 6068. 0.139 0.082 0.00 3201. 2.26 466.26 6100. 0.140 0.083 0.00 3206. 2.28 466.28 6165. 0.142 0.084 0.00 3215- 2.29 466.29 6197. 0.142 0.087 0.00 3220. 2.31 466.31 6261. 0.144 0.090 0.00 3229. 2.32 466.32 6294. 0.144 0.094 0.00 3234- 2.34 466.34 6358. 0.146 0.098 0.00 3243. 2.35 466.35 6391. 0.147 0.101 0.00 3248. 2.37 466.37 6456. 0.148 0.102 0.00 3258. 2.47 466.47 6784. 0.156 0.111 0.00 3305. 2.57 466.57 7117. 0.163 0.118 0.00 3353. 2.67 466.67 7455. 0.171 0.124 0.00 3402. 2.77 466.77 7797. 0.179 0.129 0.00 3451. 2.87 466.87 8145. 0.187 0.134 0.00 3500. 2.97 466.97 8497. 0.195 0.139 0.00 3549. 3.00 467.00 8604. 0.198 0.141 0.00 3564. 3.10 467.10 8963. 0.206 0.453 0.00 3613. 3.20 467.20 9327. 0.214 1.020 0.00 3664. 3.30 467.30 9696. 0.223 1.750 0.00 3714. 3.40 467.40 10069. 0.231 2.550 0.00 3765. 3.50 467.50 10448. 0.240 2.840 0.00 3816. 3.60 467.60 10833. 0.249 3.100 0.00 3867. 3.70 467.70 11222. 0.258 3.330 0.00 3919. 3.80 467.80 11616. 0.267 3.560 0.00 3971. 3.90 467.90 12016. 0.276 3.760 0.00 4023. 4.00 468.00 12421. 0.285 3.960 0.00 4076. 4.10 468.10 12831. 0.295 4.150 0.00 4128. 4.20 468.2.0 13247. 0.304 4.330 0.00 4182. 4.30 468.30 13668. 0.314 4.500 0.00 4235. 4.40 468.40 14094. 0.324 4.670 0.00 4289. 4.50 468.50 14525. 0.333 4.830 0.00 4343. 4.60 468.60 14962. 0.343 4.980 0.00 4398. 4.70 468.70 15405. 0.354 5.130 0.00 4453. 4.80 468.80 15853. 0.364 5.280 0.00 4508. 4.90 468.90 16307. 0.374 5.420 0.00 4554. 5.00 469.00 16766. 0.385 5.560 0.00 4619. Hyd Inflow Outflow Peak Storage Stage Elev (Cu --Ft) (Ac -Ft) 1 0.60 0.46 3.10 467.10 8969. 0.206 2 0.31 0.19 3.02 467.02 8659. 0.199 3 0.41 0.14 3.00 467.00 8602. 0.197 4 0.32 0.13 2.88 466.88 8166. 0.187 5 0.37 0.12 2.58 466.58 7138. 0.164 6 0.34 0.08 1.93 465.93 5073. 0.116 7 0.25 0.06 1.17 465.37 2872. 0.066 8 0.28 0.06 1.23 465.23 3051. 0.070 0 ' Hyd R/D Facility Tributary Reservoir POC Outflow Outflow Inflow Inflow Target Cale 1 0.46 0.03 ******** ******* 0.48 2 0.19 0.01 ******** ******* 0.20 3 0.14 0.01 ******** 0.15 0.15 ' 4 0.13 0.01 ***}**** ******* 5 0.12 0.02 ******** ******* 0.14 0.13 6 0.08 0.01 ******** 0.09 0.08 7 0.06 0.01 ******** ******* 0.06 8 0.06 0.00 ******** ******* 0.0s ---------------------------------- Route Time Series through Facility Inflow Time Series File:a:dev.tsf Outflow Time Series File:A:RDOUT POC Time Series File:A:DSOUT ' Inflow/Outflow Analysis Peak Inflow Discharge: O.631 CFS at 6:00 on Jan 9 in Year 8 Peak Outflow Discharge: 0.462 CFS at 9:00 on Jan 9 in Year 8 ' Peak Reservoir Stage: 3.10 Ft Peak Reservoir Elev: 467.10 Ft Peak Reservoir Storage: 8969. Cu -Ft 0.206 Ac -Ft Add Time Series:a:bypass.tsf Peak Summed Discharge: 0.484 CFS at 9:00 on Jan 9 in Year 8 ' Point of Compliance File:A:DSOUT.tsf Flow Frequency Analysis Time Series File:a:rdout.tsf Project Location:5ea-Tac ' --Annual Peak Flow Rates--- -----Flow Frequency - Analysis------ Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) (ft) Period ' 0.188 2 2/09/01 19:00 0.462 3.10 1 100.00 0.990 0.059 8 1/05/02 18:00 0.188 3.02 2 25.00 0.960 0.118 5 3/06/03 21:00 0.141 3.00 3 10.00 0.900 ' 0.051 7 B/24/04 0:00 0.134 2.88 4 5.00 0.800 0.076 6 1/05/05 10:00 0.118 2.58 5 3.00 0.667 0.134 4 1/18/06 22:00 0.076 1.93 6 2.00 0.500 0.141 3 11/24/06 7:00 0.061 1.23 7 1.30 0.231 ' 0.462 1 1/09/08 9:00 0.059 1.17 8 1.10 0.091 Computed Peaks 0.370 3.07 50.00 0.980 Flow Frequency Analysis Time Series File:a:dsout.tsf Project Lor-ation:Sea-Tac ---Annual Peak Flow Rates --- Flow Rate Rank Time of Peak (CFS) 0.199 2 2/09/01 19:00 0.063 7 1/06/02 5:00 0.125 5 3/06/03 21:00 0.061 8 8/24/04 0:00 0.082 6 1/05/05 10:00 0.142 4 1/18/06 22:00 0.149 3 11/24/06 6:00 0.484 1 1/09/08 9:00 Computed Peaks -----Flow Frequency Analysis------- - - Peaks - - Rank Return Prob (CFS) Period 0.484 1 100.00 0.990 0.199 2 25.00 0.960 0.149 o,115 3 10.00 0.900 0.142 *a� 4 5.00 0.800 0.125 5 3.00 0.667 0. 082 L o.oBS 6 2.00 0.500 0.063 �j� 7 1.30 0.231 0.051 8 1.10 0.091 0.389 50.00 0.980 s A:RDOUT.pks in Sea-Tac ♦ A:DSOUT.pks A-PREDEV.pks 1 ^E I 1 r�r�� //VJ V cu s cn 1 1 1 ' 10 1 2 5 Return Period 2 5 19 20 50 1p0 10 0 00 It 20 30 40 50 60 70 80 Cumulative Probability w O 90 95 98 99 9 1 1 1 1 1 1 1 1 1 1 1 DATE: 9123/2003 JOB NUMBER: 03-285 VERTICAL GRATE DESIGN Qloo = C(L - 0.2 H) H' 0.601 = 3.33[L - 0.2(0.5)] 0.5^(312) L = 0.61 ft SAY 1.00 ft a NMrWW k1 SLS A�51Gnl H = 0.50 ft P = 3.50 ft WHERE: QFO = 4.64 cfs L = LENGTH OF GRATE H = 0.50 ft C = 3.27 + 0.4 HIP 3.33 N (Wet = q 3 914z- e tS2 f = 0, 1b 0 vEiZ��a-� 64 -EU q6-7 f D. I = C 6;7,1(,' 0 1 1 1 1 1 Q l/C-��GOc-J i -I � I�Ji� �� �/fir'✓ { T� P 0;7 po,JD =$(off D o "AK q , 73 � .0 4,/Z - 0, o. 06 6prFrGc : 3.7@2 D2 H YL (A-) L0,60 l ICS,20?,Xql�' o, coot l ove-gr-,xj ccb-z4 = ggc7./6 f o.o& =4FT. ?.2 0 1 u 1 n n 1 rl DATE: 06117/04 JOB: PLAT OF WILKINS WOOD J#03-285 WATER QUALITY DESIGN - BASIC_WETPOND STEP 1: STEP 2: STEP 3: VOLUME FACTOR (f) = 3 RAINFALL FROM MEAN ANNUAL STORM (R) = 0.47 inch VOLUME OR RUNOFF FROM MEAN ANNUAL STORM (Vr) Vr=(0.9Ai+0.25Atg+0.10Atf+0.0# Ao)x(R112) WHERE: Ai = AREA OF IMPERVIOUS SURFACE Atg = AREA OF TILL SOIL (GRASS) Atf = AREA OF TILL SOIL (FOREST) Ao = AREA OF OUTWASH SOIL. (GRASS OR FOREST) Vr = 10.9 (48351) + 0.25 (14375) + 0.10 (0) + 0.01 (0)) x (13.47112) 1846 cu_ ft. STEP 4: WETPOND VOLUME Vb = f (Vr) = 5538 cu.fL VOWME CHeCK = 48351 sf = 14375 sf =OSI =0sf C.LL I' = — AT— g rr s F AQ+ TA -TT q/3[$11+9if 1,x91 Ir5 C 5 C13 �sr.5 /5fs3� x loo 2 8% — IIETwEEN 25 To 3s� I�LL`1- AT= 1,7q3 5T 4tp J�_q'11475 S �= 4/3( 1,793 f 475 + J 1,783 X 475 �t � z. 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SECTION V CONVEYANCE SYSTEM ANALYSIS AND DESIGN ICONVEYANCE SYS i L ". ANALYSIS AND DESI',',N tThe proposed andexisting drainage laciliti s wcre f csig1Cd and analyzed using iii% 100 - yr storm event. Per the condition of the Adjustment Modification, the downstream. ' conveyance pipes aiTected by the diversion were analyzed using the IW -yr undetained peak flow. The 15 -minute time step was used in determining the peak flow rates for the different sub -basins. The pipe immediately downstream from existing CB 4 (See page 6) ' is the last pipe affected by the diversion of the flows from the western part of the on-site drainage basin. Flows from west and east on-site basins converge beyond the last pipe analyzed, and therefore should clot a� rct existing faclfities beyond said point. I i R aASIA) MAP SeALE. ,� = 2DO I t ♦ L F t1` I i R aASIA) MAP SeALE. ,� = 2DO KCR T S Connndnd CRu;TL a nen T i life Se r f es ------------------------ Production Of KWIOff Time Series .S U9 - BA UAi A d/U- SATE 426'A I5 - MI N. 7/1W -S TEP Project Location Sea -Tac Computing series : a:t.tsf Regional Scale Factor 1.00 Data Type Reduced creating 1.5 -minute Ti rye series File Loading Time series File:C:\KC_SwDM\KCRTS\STTG15R.rnf Till Grass 0.33 acres Scaling Yr: 8 Loading Time series File:C:\KC_SwDM\KCRTS\STWL15R.rnf wetland 0.10 acres Adding Yr: 8 Loading Time Series File:C:\Kc_SWDM\KCRTS\STE115R.rnf imperious 1.11 acres Adding Yr: 8 -------------- Tntal Area 1.54 acres Peak Discharge: 1.48 CFS at 6:30 on ]an 9 in Year 8 Storing Time Series File:a:t.tsf Flow Frequency Analysis Time series File:a:t.tsf Project Location:sea-Tac ---Annual Peak Flow Rates -- Flow Rate Rank Time of Peak (CFS) 1.48 1 100.00 0.529 6 8/27/01 18:00 0.369 8 9/17/02 17:45 1.07 2 12/08/02 17:15 0.426 7 8/23/04 14:30 0.580 5 10/28/04 16:00 0.613 4 10/27/05 10:45 0.728 3 10/25/06 22:45 1.48 1 1/09/08 6:30 computed Peaks n 1 --Flow Frequency Analysis-- - - - Peaks - - Rank Return Prob (CFS) Period 1.48 1 100.00 0.990 —T707' 2 25.00 0.360 0.728 3 10.00 0.900 0.613 4 5.00 0.800 0.580 5 3.00 0.667 0.529 6 2.00 0.500 0.426 7 1.30 0.231 0.369 8 1.10 0.091 1.35 50.00 0.980 8 8 8 8 KcRTS command ------------- CREATE a new Time series ------------------------ Production of Runoff Time Series Project Location : sea -Tac computing series : a:t2.tsf Regional Scale Factor : 1.00 Data Type : Reduced creating 15 -minute Time series File Loading Time Series Till Grass 1.00 acres Loading Time Series imperious 0.60 acres -------------- Total Area 1.60 acres SULK - A A; /A/ A 1 S — fMAI. TI MC-- .STEP File:c:\KC_SWDM\KCRTS\STTG15K.rnf 8 Scaling Yr: 8 File:C:\KC_SWDM\KCRTS\STE115R.rnf 8 Adding Yr: 8 Peak Discharge: 1.21 CFS at 6:30 on Tan 9 in Year 8 Storing Time series File:a:t2.tsf 8 Time Series Computed Flow Frequency Analysis Time Series File:a:t2.tsf Project Location:sea-Tac ---Annual Flow Rate (CFS) Peak Flow Rates --- Rank Time of Peak 0.294 6 0.235 7 0.760 2 0.234 8 0.558 3 0.386 5 0.420 4 1.21 1 computed Peaks 2/09/01 12:30 1/05/02 15:00 12/08/02 17:15 8/26/04 0:45 11/17/04 5:00 10/27/05 10:45 10/25/06 22:45 1/09/08 6:30 -------Flow Frequency Analysis------- - - Peaks - - Rank Return Prob (CFS) Period 1.21 1 100.00 0.990 0.760 2 25.00 0.960 0.558 3 10.00 0.900 0.420 4 5 -OG 0.800 0.386 5 3.00 0.667 0.294 6 2.00 0.500 0.235 7 1..30 0.231 0.234 8 1.10 0.091 1.06 50.00 0.980 KCRTS Command ------------- CREATE a new Time Series ------------------------ SU,d 9,44//1J G GF4''SI 7-6- ALGA IS - MAI. T/Alf- STEP Production of runoff Time series Project Location Sea -Tac computing series a:t3.tsf Regional scale Factor 1.00 Data Type Reduced Creating 15 -minute Time series File Loading Time Series File:C:\KC_SWDM\KCRTS\STTG15R.rnf Till Grass 1.80 acres Scaling Yr: 8 Loading Time Series File:C:\KC_SWDM\KCRTS\STE115R.rnf Impervious 0.60 acres Adding Yr: 8 -------------- Total Area 2.40 acres Peak Discharge: 1.62 CFS at 6:30 on Jan 9 in Year 8 Storing Time series File:a:t3.tsf Time Series Computed Flow Frequency Analysis Time Series File:a:t3.tsf Project Location:sea-Tac ---Annual Peak Flow Rates --- Flow Rate Rank Time of Peak (CFS) 1.62 1 100.00 0.382 6 2/09/01 12:45 0.275 7 1/05/02 15:00 0.935 2 12/08/02 17:15 0.248 8 8/26/04 0:45 0.809 3 11/17/04 5:00 0.438 5 10/27/05 10:45 0.446 4 10/25/06 22:45 1.62 1 1/09/08 6:30 computed Peaks -----Flow Frequency Analysis------- - - Peaks - - Rank Return Prob (CFS) Period 1.62 1 100.00 0.990 0.935� 2 25.00 0.960 0.809 3 10.00 0.900 0.446 4 5.00 0.800 0.438 5 3.00 0.667 0.382 5 2.00 0.500 0.275 7 1.30 0.231 0.248 8 1.10 0.091 1.39 50.00 0.980 F 8 8 0 r r r r i { i i 0 V �� x Z Z Z 0 P: LL. o 0 111 }� w do0 D LZU v YYYYYY YY Y YYY YSL:Y]CYYYY = 0o0000 00 0 000 00000000 7 (D f1 O 4? 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Lf) Lp CL OD (`} ero ax��( �lXwwOrr� �- 1 1 0 Z Z Z 0 P: LL. o 0 111 }� w do0 D LZU 01 SECTION VI SPECIAL REPORTS & STUDIES ADaPT Engineering, Inc. 800 Maynard Avenue South, Suite 403 Seattle, Washington 98134 Tel (206) 654-7045 Fax (206) 654-7048 March 6, 2000 WA00-3554 4841 California Avenue Southwest Seattle, Washington 98116 Attention: Mr. John Wilkins Subject: Geotechnical Engineering Evaluation and Limited Subsurface Environmental Assessment 16613 - 113'" Avenue Southeast King County, Washington 98055 Dear Mr. Wilkins, This report summarizes our observations and conclusions, and provides geotechnical recommendations for development of the site. in addition, the report includes the.results of our limited subsurface environmental assessment. The project site is located at 16613 - 113`' Avenue Southeast in King County, Washington. The location of the site is shown relative to the surrounding features on the Location/Topographic Map, Figure 1, attached to this report. Our services are provided at your request. Our understanding of the project is based on our discussions with you, the site plan provided to us, our site reconnaissance, as well as our soils explorations. The subject property supports an older single-family residence with an attached garage and two detached shed -like structures. The rectangular -shaped covers approximately 67,000 square feet_ Based upon the provided survey map, the property slopes away moderately in all directions from a central high area, and total topographic relief across the site is approximately 20 feet. It is our understanding that the proposed site development will include subdividing the property into eleven lots, though no other specific development plans were provided. 0 1 ADaPT Engineering, Inc. ' Mr. John Wilkins WA00-3554 ' March 6, 2000 Page 2 The purpose of our study is to conduct a geotechnical evaluation of the site and provide geotechnical ' recommendations for development of the site for the project site, and complete a limited environmental assessment of the near surface soils encountered in our explorations. Specifically our scope includes the ' following: ' * Conduct a geotechnical exploration program at the site; * Provide a site plan showing the relative location of the test pits; * Provide detailed, interpretive logs of the test pits; ' * Provide an assessment of the subsurface conditions and their impact on construction; * Provide site preparation recommendations; ' * Provide building foundation design criteria; * Provide design for recommendations and parameters retaining walls and rockeries; * Provide drainage recommendations, ' * Screen near surface soils samples for contaminant impacts with an organic vapor meter and submit selected samples for analytical testing, and; ' * Provide recommendations for further work, if necessary. ' SITE CONDITIONS SURFACE CONDITIONS ' The site is located at 16613 - 113'd Avenue Southeast in King County, Washington. The subject property is a rectangular -shaped parcel that covers approximately 67,000 square feet. The property currently ' supports an older single -story house with an attached garage and a basement that daylights to the south, two small, shed -like structures, and a gravel surfaced driveway on the eastern portion of the property that fronts 113` Avenue Southeast. We observed three apparently abandoned, non -running cars, and several ' piles of residential garbage on the western two-thirds of the site. We also observed two 55 -gallon drums near the sheds on the north -central portion of the parcel. The site is characterized by a central ' topographic high that slopes gently to moderately away in all directions, with total topographic relief of approximately 20 feet. The steepest slopes are along eastern side of the property. The western portion of ' the property supports a manicured lawn, and a few trees, while the eastern half of the property is thinly wooded with native understory vegetation. The site is bordered in all directions by other residential properties. We did not observe evidence of subsidence or slope instability on the site, including irregular ' or hummocky topography, pistol -butted trees, active or past active scarps, seepage zones, or hydrophyllic vegetation. No surface waters or surface water seepage was noted at the time of our site work. FA -0 o ADaPT Engineering, Inc. ' Mr. John Wilkins WA00-3554 - March 6, 2000 Page 3 SUBSURFACE CONDITIONS Subsurface conditions on the parcel were evaluated by advancing seven backhoe-excavated test pits across the parcel. Our field explorations were completed on February 15, 2000 using a backhoe under subcontract to our firm. Test pits TP-1, TP-2, TP-3, and TP-4, advanced on the western half of the site, disclosed a thin (less than 10 inches) layer of topsoil over very dense moist, weathered sandstone or ' siltstone bedrock. The upper portion of the bedrock was variably weathered, generally breaking out in angular, cobble-sized pieces within a silty sand matrix, while the underlying formation was less ' weathered. Excavator refusal occurred at depths of 2 feet to 7 feet below ground surface (bgs). Test pits TP-5, TP-6, and TP-7, advanced on the eastern portion of the site, disclosed 10 to 12 inches of topsoil over loose grading to medium dense, moist, gray-brown, silty, gravelly fine sand that extended to depths ' of 5'/2 to 8 feet bgs. These soils were underlain in test pit TP-8 by dense, weathered sandstone/siltstone bedrock. Local accumulations of fill material appear to be associated with previous local site grading ' (TP-6) related to the current site usage_ The location of the test pits, designated as TP-1 through TP-7, are shown on the attached Site and ' Exploration Plan (Figure 2). The specific location and depth of the explorations performed were selected in relation to the proposed site features, under the constraints of budget and site access. The location of the test pits and other features shown on Figure 2 were obtained by hand taping from existing site features. As such, the exploration locations shown on Figure 2 should be considered accurate to the ' degree implied by the measuring methods used. The test pit logs appended to this report (Appendix B) describe the various types of soils encountered in ' the explorations, based primarily on visual interpretations made in the field. The log also indicates the approximate depth of the contacts between different soil types, although these contacts may be ' gradational or undulating. Groundwater seepage was observed in the test pit TP-6, advanced on the east-central portion of the site, ' at the time of our site work, and was not apparent in any of the other site explorations. Because of shallow bedrock, site conditions may be conducive to development of "perched" groundwater conditions. ' Groundwater conditions can vary seasonally with changes in precipitation, and may fluctuate with changes in site utilization and other factors. 1 ADaPT Engineering, Inc: Mr. John Wilkins WA00-3554 March 6, 2040 Page 4 CONCLUSIONS AND RECOMMENDATIONS GENERAL. Based on our interpretation of the subsurface exploration and site reconnaissance, it is our opinion that the site is suitable for the proposed development provided that the geotechnical recommendations given below are incorporated into the design and construction. The medium dense to very dense near -surface native soils and bedrock formation at relatively shallow depth on the parcel would provide suitable support for future single-family residences and associated easements. Site grading, particularly on the west side of the property, will require specialized equipment due to the presence of shallow bedrock. In addition, retaining structures may be required along the western portion of the property. 1 EARTHWORK Site Preparation ' The near -surface soils encountered in the test pits on the eastern side of the site generally consist of silty sand with variable grdvel. 'These soils appeared to have a silt content of more than 5 percent fines. These soils are workable only during dry weather conditions. As the moisture content of any silty soil increases, ' the soil will become difficult, if not impossible, to operate on or compact during wet weather conditions. The operation of heavy equipment at the site can be expected to result in disturbance of the exposed ' subgrade soils during wet weather conditions. in areas where the silty soils are exposed or used as fill in wet weather, we expect that operation of heavy -wheeled equipment will result in significant ground disturbance. During extended periods of dry weather conditions, the moisture content of the soil may ' become depleted and moisture conditioning of the sand may become necessary. This may require the use of water trucks or other water devices. We therefore recommend that earthwork utilizing the onsite silty soils ' be undertaken only during dry weather conditions, if feasible, to minimize grading costs. Earthwork during wet weather will require the use of select import fill soils, with the fines content limited to 5 per cent or less passing the U.S_ No. 200 Sieve. The native soils observed on the east side of the site, consisting of ' predominantly silty sands with variable gravel, would be moisture sensitive. 1 Subgrade Preparation No specific development plans were provided to us prior to the time of this writing. However, we anticipate that cuts and fills of up to 8 feet may be required across the site. Any grading on the western half of the site ADaPT Engineering, Inc. Mr. John Wilkins WAOO-3554 ' March 6, 2040 Page 5 Will encounter very dense weathered bedrock at a shallow depth, and any deep excavations, such as basements or utility trenches, may require use of larger excavation equipment, such as a heavy trackhoe, or drill and shoot blasting methods, due to the near surface presence of bedrock. Earthwork on the eastern portion of the site will encounter loose to medium dense sands, and we anticipate grading in this vicinity can be accomplished with standard earth moving equipment. ' Prior to placement of any fill material, the exposed subgrade areas should be compacted to a firm and unyielding surface. We recommend that a member of our staff evaluate the exposed subgrade conditions ' after removal of vegetation and topsoil stripping is completed and prior to placement of structural fill. The exposed subgrade soil should be proofrolled with heavy rubber -tired equipment during dry weather or ' probed with a Minch -diameter steel rod during wet weather. Any soft, loose or otherwise unsuitable areas delineated during proofrolling or probing should be recompacted, if practical, or overexcavated and replaced with structural fill, based on the recommendations of our site representative. Structural Fill All fill material used to achieve design grades within the building foundation, or parking and driveway areas ' should be placed as structural fill. The structural fill should be placed in horizontal lifts of appropriate thickness to allow adequate and uniform compaction of each lift. Fill placed below the building ' foundations and for wall backfill should be .compacted to at least 95 percent of MDD (maximum dry. density, as determined in accordance with ASTM D-698) to within 2 feet of subgrade, and 95 percent of NIDD in the upper 2 feet below pavement areas. The appropriate lift thickness will depend on the fill characteristics and compaction equipment used_ We recommend that the appropriate lift thickness be evaluated by our field representative during construction. For planning purposes, we recommend a maximum loose -lift thickness of 12 inches. We recommend that our representative be present during site grading activities to observe the work and perform field density ' tests. ' The suitability of material for use as structural fill will depend on the gradation and moisture content of the soil. As the amount of fines (material passing the U.S_ No. 200 Sieve) increases, soil becomes increasingly sensitive to small changes in moisture content and adequate compaction becomes more difficult to achieve. If it is necessary to import structural fill material to the site, we recommend that fill material consist of well - graded sand and gravel with less than 5 per cent passing the U.S. No. 200 Sieve based on that fraction 1 0 ADaPT Engineering, Inc. Mr. John Wilkins WAOO-3554 March 6, 2000 Page 6 passing the'/4-inch sieve. During prolonged dry weather conditions, a somewhat nigher (up to 10 to 12 per cent) fines content will be acceptable. Material placed for structural fill should be free of debris, organic matter, trash and cobbles greater than 6 inches in diameter. Particle sizes larger than 3 inches should be ' excluded from the top 1 -foot of fill. The moisture content of the fill material should be adjusted as necessary for proper compaction. 1 Suitability of On -Site Materials as RU ' During dry weather construction, any non-organic on-site soil may be considered for use as structural fill, provided it meets the criteria described above in the structural fill section and can be compacted as ' recommended. If the material is over the optimum moisture content (typically 2 to 4 percent above optimum) when excavated, it will be necessary to aerate or dry the soil prior to placement as structural fill. The workability of material for use as structural fill will depend on the gradation and moisture content of the soil. As the amount of fines increases, soil becomes increasingly more sensitive to small changes in moisture content and adequate compaction becomes more difficult or impossible to achieve. In general, the near surface native soils on the eastern portion of the site were observed to consist generally of silty, gravelly fine sand. It maybe necessary to moisture condition these soils prior to use as structural fill, ' particularly during dry weather conditions. The deposits of predominantly silty sand encountered on the site should be considered highly moisture sensitive. The bedrock encountered at shallow depths encountered on the western half of the site generally broke down to cobble to boulder size upon excavation. We do not recommend using weathered bedrock ' fragments in excess of six inches diameter for structural fill material. CUT AND FML SLOPES Temporary cut slopes (foundation and utility excavations) may be necessary during grading operations. As a general guide, temporary slopes of 1.511 to IV (Horizontal to- Vertical) or flatter may be used for temporary cuts in the upper 7 feet or more feet of loose or medium dense fill or native soils on the eastern portion of the site. Temporary slopes of 0.511: IV to 1 H:1 V may be used for the upper weathered zones of the bedrock formation, while near vertical to 0.5H:1 V could be used within the underlying bedrock, assuming that it is in a less weathered condition. These guidelines assume that all surface loads are kept at a 1 ADaPT Engineering, Inc. Mr. John Wilkins WA00-3554 ' March 6, 2000 Page 7 minimum distance of at least one half the depth of the cut away from the top of the slope and that significant seepage is not present on the slope face. Flatter cut slopes will be necessary where significant soil moisture or seepage occurs. BUILDING FOUNDATIONS The following foundation recommendations are presented for conventional spread footings bearing in ' suitable native soils, or for footings supported by structural fill, placed above suitably prepared native subgrade. For structures which can bear on medium dense or denser granular native soils, or on structural fill compacted to at least 95 per cent of the appropriate MOD in accordance with ASTM D-698, we recommend they be supported on shallow spread footings. In general, footings founded on undisturbed medium dense native soil or on properly compacted structural fill can be designed using an allowable soil bearing pressure of 2,000 pounds per square foot (psi) for combined dead and long-term live loads, exclusive of the weight of the footing and any overlying backfill. Where footings are founded directly on ' the undisturbed dense to very dense bedrock, bearing pressures may be increased to 3,040 psf for the combined dead and long-term live loads. These values may be increased by one-third for transient loads such as those induced by seismic events or wind loadings. We recommend a minimum width of 18 inches for isolated footings and 16 inches for continuous footings. All exterior footing elements subjected to frost action should be embedded at least 18 inches below the lowest adjacent exterior grade. Interior footings for heated spaces should penetrate at least 12 -inches below finished grades. We recommend that any disturbed soils in the footing excavations be removed, or if Ipractical, recompacted prior to concrete placement. All foundation subgrades should be examined by a representative of our firm to verify adequate bearing surface preparation prior to placing concrete. In areas where the shallow soils consist of uncontrolled fill or otherwise unsuitable, organic -rich, soft/loose, or over -optimum in moisture content, we recommend that the unsuitable material be removed and recornpacted if practical, or replaced with structural fill as described previously. Where unsuitable soils or old fill material extend to or occur at depth and overexcavation is impractical, we recommend that foundation support be extended through the unsuitable or old fill material, if present. This is typically accomplished with deepened footings or by extending the footing stem wall. We estimate that settlements of footings designed and constructed as recommended will be less than 1 inch, with differential settlements between comparably loaded footings of V2 -inch or less. Settlements will occur I a ADaPT Engineering, Inc. ■ Mr_ John Wilkins WAOO-3554 ' March 6, 2000 Page 8 essentially as loads are applied. Disturbance of the foundation subgrade during construction could result in ' larger settlements than predicted. FLOOR SLAB SUPPORT Slab -on -grade floors should be supported on native soils or on structural fill prepared as recommended. We recommend that floor slabs at the site be underlain by a 4 -inch thickness of uniformly graded gravel or sand ' containing no more than 3 per cent fines to provide a capillary break. The capillary break material should be placed in one lift and compacted to 90 percent of the NIDD. The capillary break material should be connected to a suitable drain outlet to provide an exit for any accumulated seepage. A vapor barrier, such as ' a polyethylene liner, is also recommended. A thin layer of "clean" sand may be placed over the vapor barrier and immediately below the slab to protect the polyethylene liner during steel and/or concrete ' placement. A subgrade modulus of 250 kef (kips per cubic foot) may be used for design. We estimate that settlement of the floor slabs designed and constructed as recommended, will be'/ -inch or less over a span ' of 50 feet. I LATERAL RESISTANCE ' Lateral loads may be resisted by friction on the base of footings and floor slab and as passive pressure on the sides of footings. We recommend an ultimate coefficient of friction of 0.45 be used to calculate friction between the concrete and dense native soil or compacted structural fill. Passive pressure may be ' determined using an equivalent fluid weight of 350 pef (pounds per cubic foot) above the water table. This assumes that structural fill is placed against the sides of the footings and that the top of the fill is confined ' by either a concrete floor slab or pavement. A safety factor of 1.5 is conventionally applied to these values. 1 RETAINING AND SUBGRADE WALLS ' Retaining and/or subgrade walls can be supported on shallow footings founded on medium dense or denser native soils or structural fill, if properly prepared. Footings bearing on at least medium dense or medium stiff native soils or structural fill as described above can be designed using an average allowable bearing '— value of 2,000 (pounds per square foot) psf with a maximum toe pressure of 3,000 psf. Lateral loads on conventional retaining structures founded as described above may be resisted by friction on the base of the 1 ADaPT Engineering, Inc. ' Mr. John Wilkins WADO-3554 March 6, 2000 Page 9 wall footings and as passive pressure on the sides of footings. We recommend using an ultimate coefficient of friction of 0.45 to calculate friction between the foundation and native soils or on structural fill. For the condition of a horizontal ground surface beyond the wall, the passive pressure may be determined using an equivalent fluid density of 350 pcf. This assumes that the footings are cast "neat" against the cut, and that any fill soils around the wall are placed and compacted as structural fill. A safety factor of 1.5 should be 1 applied to these values, for sliding and overturning. The lateral active soil pressures acting on reinforced concrete retaining walls depend on the nature, density ' and configuration of the soil behind the wall. We recommend that walls supporting horizontal backfill be designed using an equivalent fluid density of 35 pcf for a level back-slope behind the wall. This pressure is based on backfill placed within 2 feet of the wall being compacted by hand-operated equipment to a density ' of 95 per cent of the MDD and consisting of clean sand or sand and gravel. The recommended pressure does not include the effects of surcharges from surface loads, or the surcharge effects of a slope above the ' wall. For the conditions of a 2H to IV slope above the wall, a 50 per cent increase in horizontal pressures would apply. As an alternative to conventional concrete retaining walls, the use of segmented concrete walls with geofabric or geogrid reinforcement may be considered (i.e., "Keystone" - type walls). Such ' walls have the advantage of economy over cast-in-place walls, and are especially attractive where site grades will be raised, as the grid/fabric can be noeluded progressively in the structural fill as site grades are ' raised. if such walls are considered, they should be constructed in accordance with the manufacturer's recommendations and specifications. ' We recommend that retaining wall footings founded near fill slopes be a minimum of 2 feet in width and have a minimum 2 feet of embedment. Adequate drainage behind any retaining structure is imperative. We recommend that a drainage system consisting of a minimum 18 inches of washed sand and gravel with less than 3 per cent fines be placed along the back of the wall. In addition, a drainage collector system ' consisting of 4-inch perforated PVC pipe should be installed behind the wall to provide an outlet for any accumulated water. The drainage material should be capped at the ground surface with 1-foot of relatively impermeable soil or otherwise sealed. 1 ROCKERIES If rockeries are to be used on this project, we recommend that a setback for foundation elements be provided for all structures. We recommend that building limits in these areas be located at or behind a point such that a slope inclined at 1 H: IV extended upwards from the base of the rockery would not encounter any foundation elements. We recommend that all rockeries be placed in accordance with current King County ADaPT Engineering, Inc. ■ Mr. John Wilkins WA00-3554 ' March 6, 2000 Page 10 specifications and he limited to the restrictions stated therein. A copy of the typical rockery design and ' construction requirements is included in Appendix C of this report. Rockeries should be constructed only with sound, durable rock. Drainage provisions, and building and parking setbacks, are provided in local codes and standards. Depending on the rockery location and application, reinforcing material and select fill behind the rockeries may be requited. Although commonly used in the northwest, it should be noted that unrcinforced rockeries are actually landscape features rather than engineered retaining structures. Their primary function is to provide a facing ' for otherwise stable slopes and to protect them from erosion and sloughing. As such, the materials in a rockery face cut slope should consist of relatively dense strata. It should also be realized that rockeries, ' even when they are properly constructed, will require occasional maintenance. Therefore, rockeries should be located so that they are readily accessible for a contractor's equipment should repairs become necessary. ' PAVEMENTS 1 Pavement subgrade areas should be compacted as previously outlined, except that the minimum compaction achieved in the upper 2 -feet below pavements should be compacted to 95 -per cent of MDD, in accordance with ASTM D-698. ISITEDRAINAGE ' All ground surfaces, pavements and sidewalks at the site should be sloped away from the structure. Surface water runoff should be controlled by a system of curbs, berths, drainage swales, and or catch basins, and conveyed to an appropriate discharge point. Roof drains for the structure should be tightlined separately ' from footing drains. Footing drains should be installed adjacent to all exterior footings. The footing drains should not be connected to the roof drain system until sufficient gradient will prevent roof water from ' entering or surcharging the footing drain_ Drains should also be provided behind all retaining or subgrade walls_ Driveway/sidewalk surfaces should be sloped such that surface water runoff is directed away from the structure, and where appropriate collected and routed to suitable discharge points. Surface water should not be allowed to discharge over steep slopes. All stormwater should be collected and routed via tightline to an appropriate discharge point. ADaPT Engineering, Inc. Mr. John Wilkins WA00-3554 ' March 6, 2000 Page I I LIMITED SUBSURFACE ENVIRONMENTAL ASSESSMENT Based upon the presence of debris and rubbish piles on the property, King County Department of ' Development and Environmental Services (DDES) requested that an assessment be performed that would "provide verification that no hazardous materials underlie the site." In addition to the seven test pit excavations advanced on the property, ADaPT advanced five additional shallow hand dug ' excavations (designated PH -1 through PH -5) adjacent to the debris piles. The exploration locations are depicted on the Site and Exploration Plan, Figure 2. ADaPT screened soils encountered from all of the ' test pit and hand dug explorations for apparent stains or odors. In addition, ADaPT screened selected samples from the explorations with a photoionozation detector (PID). The PID is equipped with a 10.5 eV lamp and is capable of detecting the presence of volatile organic compounds, such as gasoline ' constituents, and certain chlorinated and non -chlorinated solvents. Based upon the results of PID and visual screening, as well as the presence of immediately adjacent sources, two near surface samples were submitted for analytical testing. Soil samples screened across the site generally did not exhibit obvious signs of contaminant impacts, such as stains, odors, or measurable PID readings. We did observe a minor amount of surficial staining in the driveway on the east -central portion of the parcel. However, hand excavation PH4, advanced in ' this location, showed this staining to be surfieial, and not extensive. ' Soil samples collected from, PH -2; advanced in the area of three abandoned cars and two - five gallon buckets, and PH -4, advanced adjacent to two 55 -gallon drums, were submitted for analytical testing. Each sample was analyzed for gasoline through motor oil -range total petroleum hydrocarbons (TPH) by ' Washington Department of Ecology (Ecology) method Washington Total Petroleum Hydrocarbons - Hydrocarbon Identification (WTPH-HCID). Sample PH -2/0.5 did not exhibit detectable concentrations of gasoline through motor oil -range TPH. Sample PH -410.5 exhibited a detectable concentration of ' motor oil -range TPH. Based upon this detectable concentration, the sample was subsequently analyzed for diesel and motor oil -range TPH by Ecology method WTPH Dx. The sample exhibited a motor oil - range TPH concentration of 63.4 parts per million (ppm) and a diesel -range TPH concentration of 11.2 ppm. Both of these concentrations are below the Ecology Model Toxics Control Act (MTCA) Method A ' cleanup level of 200 ppm for non -gasoline TPH in soils. Analytical test certificates are included in Appendix D. ADaPT Engineering, Inc. . Mr. Join Wilkins WA00-3554 ' March G, 2000 Page 12 Based upon the results of our limited soil screening and analytical testing, it does not appear that the site ' has been significantly impacted by contaminants. This does not preclude the possibility that local areas of contamination may be encountered during site development. LIMITATIONS We have prepared this report for use by Mr. John Wilkins, and members of his design team, for use in the ' design of this project. Our report, conclusions and interpretations should not be construed as a warranty of the subsurface conditions. Variations in subsurface conditions are possible between the explorations and may also occur with time. A contingency for unanticipated conditions should be included in the budget and ' schedule. Sufficient monitoring, testing and consultation should be provided by our firm during construction to confirm that the conditions encountered are consistent with those indicated by the ' explorations, to provide recommendations for design changes should the conditions revealed during the work differ from those anticipated, and to evaluate whether earthwork and foundation installation activities comply with contract plans and specifications. When the design is finalized, we recommend that the design and specifications be reviewed by our firma to ' see that our recommendations have been interpreted and implemented as intended. The scope of our services does not include services related to environmental remediation and construction safety precautions. ' Our recommendations are not intended to direct the contractor's methods, techniques, sequences or procedures, except as specifically described in our report for consideration in design. If there are any changes in the loads, grades, locations, configurations or type of facilities to be constructed, the conclusions ' and recommendations presented in this report may not be fully applicable. If such changes are made, we should be given the opportunity to review our recommendations and provide written modifications or ' verifications, as appropriate. 1 0 ADaPT Engineering, Inc. Mr. John Wilkins WAOO-3554 March G, 2000 Page 13 Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted practices in this area at the time this report was prepared. No other conditions, express or implied, should be understood. Respectfully submitted, ADaPT Engineering, Inc. �<VA� - �- Charles C. Cacek Senior Engineering Geologist t A"f0 -.1. e�� Kurt W. Groesch, PE Senior Geotechnical Engineer KWGlccc Enclosure: Appendix A _ Figures Appendix B - Test Pit Logs Appendix C - King County Rockery Detail Appendix D - Analytical Test Certificates 0 APPENDIX A FIGURES r ADaPT Engineering, Inc. ADaPT Engineering, Inc. 800 Maynard Avenue S., Suite 403 Seattle, Washington 98134 Ph : 206.654.7045 Fax : 206.654.7048 FIGURE I - Location/Topographic Map Location : Wilkins Parcel 16613 113tH Avenue SE King County, Washington 98055 Client : John Wilkins Date : 2/29/00 Job S—WA-00--3554 rs Q� 3S 3nN3AV HICIL f 40- '00Z qc 09 Ln I r ,07 OZ r r• � y �� I `�, 1 r � I Ln I 1f Ir* ` � OZL O ---- 'ONOO� 091 I I I xxW p JrN I I \\ T m N 0 O' \ ++ a N I~n x \\ OZ I ,0Z W) 1 �`JI � ❑ ,11 � yyy �, v°j rJ � � � � I I y 4 L3. 4E4 w CL CL La /i �g' co \ I \ L�\R .0v ot, '01, Oir IO I `�\ L,� 1 l• � I _`•tel �--'•`_~_-I... � � ♦ __ 1 r C Qbw a c 0 4, as L- 0 0 00n x W H CI� L1J LII Qi LL. f. C) Z vI LLJ J a cv U V} LLJ Im D LL C 0 n 3 O U no C) �. C.8 � a v+ N [ �) N a a3 U an C•- a- on—o N L) Y:2 ip CLO N f N L A U C t Q r\ r7 � O +} p CO Ln 0)a aD LL C 0 C) Q Cn oC)ED F� �: Lo -O 0 N O p 00 LI) CL ' ADaPT Engineering, Inc. APPENDIX B ' TEST PIT LOGS 1 TEST PIT LOG ADAPT Engineering, ih. S Inc. t3D0 Maynard Avenue South, Suite 40Ci SEATTLE, WASHINGTON 98134 TEL: 206.654.7045 FAX: 206.654.7048 PROJECT: Wilkins parcel Job Number: WA00-3554 Test Pit No.. TP -1 16613 113th Avenue SE - King County, Washington 98055 0 ru nz n ¢¢ F 3 x ----------------------- MATERIAL DESCRIPTION _ 4 Inches brown topsoil with roots Very dense, moist, tan, weathered SILTSTONE /SANDSTONE, BEDROCK weathered to consistency of silty tine sand Grades to less weathered BEDROCK, generally breaking up into inches to 6 inches cobbles TESTM 5 Test pit terminated due to refusal on less weathered bedrock 5.5 feet depth 10 15 LEGEND V Suit Wwr rWW y Draq Y!{fi] WAKI) DATE V suit Waft U.'d &"&wow 1000 5-09 1 wy.. s..nw. fir ! r.�aa+GRX.�d..ft t Page 1 of 1 s Drilling Start bate zq5= uniting uornpletwn nate : rl1 Wuu Logger tsy : 1,I... 1 1 1 1 1 1 1 1 1 1 ADaPT Engineering, Inc. TEST PIT LOG 840 Maynard Avenue Smith, S 8143 981334 SEATTLE, WASHINGTON TEL: 206.654.7045 FAX: 206.654.7048 PROJECT: Wilkins Parcel Job Number: WA00-3554 Test Pit No.: TP-,' 16613 113th Avenue SE King County, Washington 98055 m� w rue^ �q m ' MATERIAL DESCRIPTION w V m 0 4 Inches black topsoil ............................. rVery dense, moist, tan, weathered SILTSTONE /SANDSTONE, BEDROCK, rack inclusion up to 2 feet diameter, generally 4 to 6 inches highly fractured, weatehered to consistency of sitly fine sand Test pit terminated due to refusal at 4 feet on less weathered bedrock at 4 feet depth 5 _10- -15- -20-1 2 LEGEND V 9hicvraw LMI r odr q f/J//S WSW amino DATE - OIiTE g � � �p1s ip0p 9 � ' a f'� Weer $"paw [ PrNiad CraridY�r Urnnng arEW[ Ua,e : zil nVVU airanny wrnpicuuri VGIC - cr �rw rMNG Page 1 of 1 Logged By : CG 1 1 1 1 1 1 1 1 1 1 1 ADAPT Engineering, Inc. 03 TEST PIT LOG eQQ SEATTLMaynarE. wAsAvenNGTON 981 4 SEATTLE, WASHINGTON 98134 TEL: 206.654.7045 FAX: 206.654.7048 PROJECT: Wilkins parcel Job Number: WA00-3554 Test Pit No.: TP -3 16613113th Avenue SE - King County, Washington 98055 0 lU tu d : SZ O m -------------------------------------------- MATERIAL DESCRIPTION 0-10 Inches dark brown sandy topsoil with fine gravel Loose, moist, brown silly gravelly fine SAND Medium dense, moist, brown, silty gravelly fine SAND with weathered broken oxidized sandstone, rock fragments generally less than 6 inches Very dense, less weathered SILTSTONE / SANDSTONE, -- BEDROCK with angular rock fragments up to 2 feet diameter 5 Test pit terminated due to refusal at 7 feet 10- -15- 2 -20-1 LEGEND V seroc w�. Drina ® ww.r e.wn DATE �L StaYC warri,.d DATE &�5repb 100b ��� 5 yoi, �� A vwch.a rouMrtir �l� wwr so+rnw — Page 1 of 1 Drilling Start Date 2J15= urnung t;ompieuon nate : W I ZWuU Loggeu 13Y. ..... 1 1 1 1 1 1 1 1 1 ADAPT Engineering, Inc. gn TEST PIT LOG oA , Avenue South, Suite 443 SEATTLE, WASF1lNCxTQfJ 98134 TEL: 206.654.7045 FAX: 206.654.7048 PROJECT : Wilkins Parcel Job Number: WA00-3554 Test Pit No.: TP -4 16613 113th Avenue SE - King County, Washington 98055 a w_ T z a w>v g E MATERIAL DESCRIPTION 0 10 Inches dark brown topsoil ---------------------------------------------- ----------------------------------------_--_-___Very dense, moist, tan weathered angular SILTSTONE / Very SANDSTONE, BEDROCK, rock fragments generally less than 6 inches Test pit terminated due to refusal on bedrock at 2 feet depth 4 i , f 1 -5- -10- 10152 -15- 20-1 LEGEND _t-_ swcWAN Lem ranav UA>E `I� wn.r s..pap. ri6roo. Z PwcP *WK Cawn Page i of 1 unumg start uata . 2115/oo unutng Lompieuon uaio : zi I orw 99 • 7 - 11 ADAPT Engineering, Inc. TEST PIT LOG Ban Maynard Avenue South, Suite 403 SEATTLE, WASHINGTON 98134 TEU 206,654.7045 FAX: 206.654.7048 PROJECT: Wilkins Parcel Job Number: WA00-3554 Test Pit No.: TP -5 16613 113th Avenue SE King County, Washington 98055 C 0 o W a � Egg WW hMATERIAL 3c, u�m DESCRIPTION 10 inches brown, topsoil --------------------------------------------- Medium dense, moist, brown, silty, gravelly fine SAND with angular rock frejments to 6 inches _ Medium dense, tan silty gravelly fine SAND, moist to wet '-^ Grades to very dense, tan, SILTSTONE / SANDSTONE,, BEDROCK IALeet Test pit terminated due to refusal on less weathered bedrock at 8.5 feet depth T£5THJG 5 10 15 LEGEND DATE nATEsas a w.r s �,ae, suede c e l 3 -MM �I' �._ Pren.acecwrtiaw eumr ��� wmrindkab Page . I of 1 ' Drilling Start Date: 2/15x00 Drilling Completion Dade : 2f15/00 Lagged RY : CCC ' Drilling Stmt Date; ADaP-f Engin&-ring, Inc. TEST PIT LOG soo Maynard Avenues 81k t)3 SEATTLE, Vf SHkk•ITO EaTQN 81ad TEL 206.654.7045 FAX: 206.654.7048 PROJECT: Wilkins Parcel Job Number: WA00-3554 Test Pit No.: TP -6 16613 113th Avenue SE King County, Washington 98055 0 d E adv d [7 + WW m _ MATERIAL DESCRIPTION 10 inches dark brown topsoil Loose to medium dense, moist, silty gravelly SAND with trace organic debris (Fill) to 3 Leet --------------------------------------------- Grades to medium dense, moist, gray 1 brown, silty, gravelly, fine SAND Moderate seepage at 6 feet TESTNf' 5 Test pit terminated at 6 feet depth 10- -15 - LEGEND V s war u ■ D wow a..ia D YE St.*Wo. L -d WMV s.y,.o. , Pwd,a Qm-a w I Page 1 of aiWUu unamg wrnpieuon uaa3 : u i ww ­Ww— s . - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ADaPT Engineering, Inc. TEST PIT LOG Bpp SEATTLMaynwE. WASAvenHINGTONe South, Stifle134 SEATTLE. WASHINGTON 96134 TEL: 206.654.7045 FAX: 206.654.7048 PROJECT: Wilkins Parcel Job Number: WAOO-3551 Test Pit No.: TP -7 16613113th Avenue SE Winn r niimu Wnchinntnn QRnFt, 4Jnning bmn varve : ?iISrW WINIIJy %,vrnpyuvn LJaoa . cr �arw --roe-- —1 - - 8� d ZI S W MATERIAL DESCRIPTION TESTING ---------------------------------------------- 12 Inches dark brown topsoil Loose, moist, tan, silty gravelly fine SAND ----------------------- Grades to medium dense --------------------------------------------- Dense, moist, gray -brown, weathered SANDSTONE / SILTSTONE, BEDROCK, rock fragments generallyless than 6 inches, within matrix of silty gravelly SAND 5 Test pit terminated at 7 feet 14 #5 1201 LEGEND ..S_.. s�w.rrl..ratwia ® w■r3..ry WITS LT Statcw,t<lsw S �duRsuror fCo DATE Prdrd G..W. r wwr s..{gr Mdlc�r /� P3go : Y of 1 4Jnning bmn varve : ?iISrW WINIIJy %,vrnpyuvn LJaoa . cr �arw --roe-- —1 - - ADaPT Engineering, Inc. 1 1 APPENDIX C KING COUNTY ROCKERY DETAIL Il 1 ' 2s No` roadways dr parking Ws in this oras. A .,� No footings of structLM v = (including other roc? eries3 mak hear in stippled c: PLACEMENT 'OF ADJACENT STRUCTURES .RDckeries band over in height require 5. Improved walking surfaces above and ad - engineering supervision by special jacent to rockeries over 30- 3.n height inspector (UBC s05b), which at mini. shall be protected by a guardrail shall consist of inspection and written conforming to UBC 1711. t c 4' certification of subgrade, placement of ba;e course and drainage; and finished i. Rockeries are erosion' -control structures, rockery. not retaining walls, dative naterial must be stable and fr ee-standing in . - Rock shall be sound and have mini; -r= cut face. density of 160 pounds per cubic foot. 8. finy deviation in designor in placement S: -The long dimension of all -rocks shall of adjacent structus Frust be su'�nit- ., be placed perpendicular to the wall. ted with the seal of a civil encineer :Each rock should bear on two rocks in currently licensed in the state o*. the , i Ar:----- ADaPT Engineering, Inc. APPENDIX D ANALYTICAL TEST CERTIFICATES ADaPT Engineering, Inc_ - Seattle Project: WilkensParcel 8OOMaynardAvcnueSouth,Suite403 ProjectNumber: WA00-3554 Reported: SeattieWA,98134 ProjectManager. CharlesCacek 03/0310011:47 r ANALYTICALREPORTFORSAMPLES Sample IIT Laboratory ID Matrix Date Sampled bate Received PH -210.5' BOB0278-01 Soil 07115/0009:30 02/1710008:00 P14-4/0.5' BOB0278-02 Soil 02/15/0010. -GO 02/17/0008:00 NorthCreekAnalytical-Bothell Amar Gill, Project Manager Theresultsinthisreportapplyrothesamplesanalysedinaccordancewiththechainof c=todydocumeat. Thisonalyticalreporimustbereproduredinitsenfirety. Page l of 8 0 ADaPT Enginecring, Inc. - Seattle Project: WilkensParcel 80OMaynardAvenueSouth,Suitc403 ProjectNumber WAOO-3554 Reported: SeattleWA,98134 ProjectManager: CharlesCacck 03/03/0011.47 HydrocarbonldentificationbyWashingtonDOEMethodWTPH-HCID NorthCreekAnalytical-Bothell Reporting Walyte Result Limit Units Dilution Batch Prepared Analyzed Method Note: PH -2/0.5' OB0278-01 oilSam led:02115/0009:3OReceived:02117/0008:40 ' GasolineltangeHydrocarbons ND 25.0 mglkgdry 1 OB17026 02117/00 02117100 WTPH-HCID DieselRangeRydrocarbons ND 62.5 " Heavy0ilRangetlydrocarbons ND 125 ' Surrogate: 2 -FRP 119% 50-150 PH -4/0.5' BOB0278-02 SoilSam led:02115/0010:OOReceived:02/1710008:00 GasolineRangeHydrocarborns ND 25.0 mogdry 1 OB 17026 02/17/00 02/17/00 WTPH•HCiD ' DieselRangellydrocarbons ND 62.5 " HeavyOdRangeHydrocarbons DET 125 " Surrogate:2-FBP 91.9% 50-150 - ^ NorthCreekAnalytical-Bothell 7heresuluinthisreportapplytnthesamplesanaboedinaceordancewiththechainof custndydocum ent.7h isana lytics lreportmustbereproducedinils en h rety_ Amar Gitl, Project Manager Page 2 of 8 ADOT Engineering, Inc. - Seattle Project; WilkensPareel 800MaynardAvenueSouth,Suite403 ProjectNumber: WA00-3554 Reported: 5eattleWA,98134 ProjectManager: CharlesCacck 0310310011:47 Diese]Hyd rocarbons(C 12-C24)andHeavy0i](C24-C40)byWTPH-D(extended) NorthCreekAnalytical-Bothell Reporting knir e Result Limit Units Dilution Batch Prepared Analyzed Method Notes PH -410.5' B0278-02 oil.Sam led:02/1510070.00Received:02/17/0008:00 DieselRangeHydroearbons 11.2 10.0 mgtkgdry l OB28021 02128/OO 02729100 VMH-D HeavyOURangeHydrocarboas 63.4 25.0 " Sturogate:2-FBP 79.3% 50-150 NorthCreekAnalytical-Bothell Therewitsinthisrepormpplytothesamplesanalyxedinaecordancewirhthechainof cusiodyd ocumen t. Th isana lyti en t rep orim ust8erepro d uced i n its en ti rety_ Amar Gill, Project Manager Pape 3 of 8 `:! ADaPT Engineering, Inc. - Seattle Project: WilkensParcel 80OMaynardAvenueSouth,Suite403 ProjectNumber. WAW -3554 Reported: SeattleWA,98134 ProjectManager. CharlesCacek 03103/0011:47 PhysicalParametersbyAPIWASTM/EPAMethods NorthlCreekAnalytical-Bothell Reporting nalyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes PH-210.5'(BO)3027R O SoilSampled:02115/0009:34Received:02117/0008:00 DryWeight 82.2 1.00 % 1 OB18002 02/18/00 02/21/00 BSOPSPLO03RO7 PH410.5'(BOB0278_-02)SoilSampled:02115/0010:00R_eceived:021171000$:00 DryWeight 73,5 I_00 % I OB18002 02118!00 02/21100 13SOPSPLM3RO7 NorthCreekAnalytical-BotheIl neresul7sinthisreportapplylothesainplesanabsedinaccordancewiihihechainoj custodydocument. Thisanalyticalreporhnusibereproducedirtitsentirery. Amar Gill, Proiect Manager Page 4 of 8 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ADaPT Engineering, Inc. - Seattle Project WilkensParcel BOOMaynardAvenueSouth,5uite403 ProjectNumber: WAOO-3554 Reported: SeattleWA,98134 ProjectManager: CharlesCacek 03/4310011:47 HydrocarbonldentijricationbyW ashingtonDQEMethodWTPH-HCID-QualityControl NorthCreekAnalytic al -Bothell Reporting Spike Source %REC RPD lyte Result - Limit Units Level Result %REC Limits RPD Limit Notes BatchOB17026:Pre aredO2/17/OOUsin HClID(WA) Blank(OB170Z6-SLK1} GasolineBangeHydtoearbons ND 20.0 mg/kgwet DieselRangeHydrocarbons ND 50.0 " HeavyOilRangeHydrotarbons ND 100 Surrogate--2-FBF DET 160 93.1 50-150 NorthCreekAnalytieal-Bothell Thereruitsinlhisreponapplylothesamplesanalyredinaccordancewilhthechainof cus t odydocu m e n t. Th iso n a lyt ica t rep o r e m us iberep ro d need i n i is en ti re ry. Amar Gill, Proiect Manager Pai;e 5 of 8 1-1 ADaPT Engineering, Inc. - Seattle Project: WilkensParcel 80OMaynardAvenucSouth,Suite403 ProjcctNumber. WAOO-3554 Reported: SeattleWA,98134 ProjectManager: CharlesCacck 0310310011:47 DieselHydrocarbons(C 12-C24)andHeavy0il(C24-C40)byv"PH-D(extended)-QualityControl NorthCreekAnalytical-Bothell Reporting Spike Source %REC RPD uwyte Result _ Limit Units Level Result %REC Limits RPD Limit Notes ' BatchOB28021 -Preared0212810OUsin EPA355013 Blank(OB28021-BLK1) DieselRangeHydrocmbons Hcavy0ffRaageHydwcarWns ND ND 10.0 mgllrgwet 25.0 ' Surrogate.2-FBP LCS(OB28021-13Sl 8.88 10.7 83.0 50-150 ' DieselRangeHydro=bons 56.0 10.0 mglkgwet 66.7 84.0 60-140 Surrogate:2-FSP Da licate(0528021-DUP1} 10.9 10.7 102 50-130 Source.BOB0404-06 ' Diese)RangeHydrocarbons Heavy0i1RangeHydrocarbons ND ND 10.0 MgAgdry 25.0 ND 50 2.70 1.83 so Surrogate:.2-FRP 9.62 11.9 80.8 50-150 NorthCreekAnalytical-Bothell Theresultsinihisreportapplytothesampleaanalyzedinaccordancewithihechainof cusiodydocum en t,Thisanalyticalreportm uslbereproducedinitsen tirety. 1 Amar Gill, Project Manager Page 6 of 8 ADaPT Engineering, Inc. - Seattle Project: WilkensPareel 80OMaynardAvenueSouth,Suite403 PrejectNumber: WAOO-3554 Reported: SeattleWA,98134 ProjectManager: CharlesCacek 0310310011:47 PhysicalParametersby"HA!ASTM/EPA lethods-QualityControl NorthCreekAnalytical-Bothell Reporting Spike Source °IoREC RPD kallyte Result Limit 'Units Level Result %REC Limits RPD Limit Notes BatchOB18002:Pre aredO211810OUsin D Wei ht Blank(OB18002-BLKI) DryWeight 100 1.00 % NorthCreekAnalytical-Bothell Theresul[rinthisreportapplylothesamplesanalyzedinaccordancewilhlheehainof custodydocumenLnisanalyticalreporimustbereproducedinitsentirety. Amar Gill, Project Manager Page 7 of 8 G 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ADaP T Engincering, Inc. - Seattle Projcct: WilkensParcel 800MaynwdAvenueSouth,5uite403 ProjectNumber: WA00-3554 Reported: SeattleWA,98134 ProjectManager. CharlesCacck 03/03/0011.47 NotesandDefmitions DET AnalyteDETBCTED ND AnaiytcNQTf)FTECTEDatorabovethereporunglimit NR NotReported dry Sampleresultsreportedonadryweightbasis RPD RelativePementDiffemnce NorthCreekAnalytical-Bothell Theresultsinlhicreportapplylothesamplesanalyzedinaccordanc—iththechainoj custodydocument. Thisanalyfiealreportmusibereproducedinitsentirery. Amar Gill, Prosect Manager Page 8 of 8 35 SECTION VII OTHER PERMITS SECTION VIII T.E.S.C. ANALYSIS AND DESIGN iNARRATIVE FOR WILKINS WOOD— ESC PLAN The site is sloped from the center to all sides with soils that are resistant to erosion. The site is already somewhat developed with a house, lawns and driveway so clearing and grading will be somewhat less than normally would occur. The silt fence will be ' extended around the perimeter of the site to insure that no silt laden water leaves the site. A construction entrance will be provided, and the temporary sediment pond will be constructed immediately. The storm drainage pipes will be installed as soon as possible to collect water from the eastern portion of the site and rout it to the sediment pond on the west side of the site. Catch Basin Protection will be provided. During dry weather, and after the site has been mostly graded and stabilized and the storm drainage system installed, the sediment pond will be enlarged into the detentionlwetpond. As the wetpond will be below the pond outlet elevation there is little chance than any silt laden water could leave the pond during construction. The remaining erosion control structures will be removed once the site is fully stabilized_ Requirements of Section 1.2.5 are met as follows: Clearing limits are shown on the TESL Plan on Sheet 10. The trees to be saved will be protected. Cover Measures are covered by notes call for hydroseeding disturbed soil and straw mulch to be applied as needed_ Perimeter Protection will be provided by silt fencing_ Silt fences will be installed around the perimeter of the site to insure that no silt laden water leaves the site. Traffic Area Stabilization will be provided by a 100 foot rock construction entrance. Sediment Retention will he provided by a sediment pond located in the area of the future detention/wetpond. Surface water controls will be provided by swales, and eventually the piped drainage system and lot grading. Dust control will be provided by watering the site if necessary. EO 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SEDIMENT POND DESIGN SURFACE AREA SA = FS (02 / VS) where: Q2 = Design inflow based an the peak discharge from the developed 2 -yr runoff event from the contributing drainage area (See Section 4). 0.31 cfs Vs = The settling velocity of the soil particle of interest. 0.00096 ft/sec FS = Safety factor of 2 to account for non -ideal settling. therefore SA = 2 x 0.31 /0.00096 650.0 s.f. SA Provided = 3717 s_f_ ( Area measured using Softdesk Design Module) > PRINCIPAL SPILLWAY Q,o = Developed 10 -yr peak flow 0.37 CfS D1(9.739xH17) = 0.04 ft D= (Q.,/(3.782xH'p)) 05= 0.31 ft therefore use D = 12 in diameter riser �= A.(2h)05 0.6 x 3600 Tgo.a = 0.028 s.f. D= 13.54x(A.)D50 2.28 in #REF! D = 2 1/4" in diameterWice 650.0 s.f. therefore ok where: D = diameter in feet H= 1 Q.. and Qpm = Qto where k = orifice area (s.f_) A, = pond surface area (s -f.) 3717 SF h = head of water above orifice (ft) = 2.5 ft g = acceleration of gravity (32.2 ff/sec* T = dewatering time (24 hours) where : D = orifice diameter (in) NK� SECTION IX BOND QUANTITIES, FACILITY SUM S, AND DECLARATION OF COVENANT 1 1 1 1 1 1 1 O m N CD a C*] a co a J N LO 0 0 J 0 0 z Y 3 LO 0 O7 rn Q z 0 z w w ui 0 ui Q M_ C'7 Cfl a) r - m Cll Cb c0 c . (3) (n > SU O � cO o 6- (1) W � j I C � Cll ca QCSS C7 c N C (13 L O cc U m Ix , a E � U 2 o C "- N y CO U C ( - Q U a d . Z a E Q D cr a� C Q ^—^�0 CL D ^W W � U) 4-- {o L 0 atO"a- Q < u cu E }+ 0 }+ U - CU Dy + 0 L � LO Q m 4) CSS C � E 2 C E L � . m m N m W C CD O E V1 C) C O L r y N UJC -CD 3` �+ c L - �N�pp Om O 4-J E Q. 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U ❑ Q :N + t- iJ= ro U U G [O M UN) N 6 -O Ql O E p G co 6? p E y T .L] o N EN ID a v U 9 wj 64 U E D E y ~ C O C -3 7 tl O ca Lo E E c — E troll L m Y m E w E o M ro d U O N E wr L m p o C m O m y c o tL O ro `t yny U L U E .L+ N C ¢ in Q N.p C vi w � W c E E w ro _" .0 m W cm( ( E= E E o 0 U o E m N E 1– Q Dl fi c N sa E c7i o G-0 C .c .0 E 6 Q +� .0 E d O G U N At Q 7 I] c m p° U c o ro y Q C3 E0- R CD w_ N .2 E N m Ccw ~ 3 (D E O �T o U w 3 y- o w m o GY E H W m m o m Z c m c tY w t � Co Nm N N w ¢ ]; f Q Z b o 0= a N n O O N L N m z 7 O N P Q W p U r � n 0 ti 3 s) r cd cic7» z m O O O 0 O z z z a a * Z i M � � O w of I* KING COUNTY pt. of pcvrlopment d Environmental Scrvices Oakesdale Avenue Southwest WA 98055-1219 LAiYDSCAPE BOND QUANTITY WORKSHEET FORM PROJECT NAME DDES PROJECT #: Wilkens Wood L99P301 0 ADDRESS: 16513 - 113th Ave. SE, Renton PREPARED BY: Hans Korve PHONE_ 253-333--2200 Sands are based upon required landscaping only and will be posted for performance and/or maintenance. Required landscaping includes perimeter dstaping, surface parking area landscaping, (KCC 21 A.16) and any landscaping required by SEPA environmental review- The maintenance period or the Iife of the project, however, after posting for maintenance, the perfon-nance bond will be reduced to 30% (51,000-00 minimum) and be held for two year period- Upon re -inspection of the site the bond will be released if the site has been properly =intained (21A.16.180). A landscape maintenance inspection deposit of 5316.80 is required prior to permit issuance to cover the costs of the 2 -year maintenance inspection. andscape inspections are billed at the current hourly rate once the initial deposit is exhausted. if the project has not been maintained and there are 9cad trees, shrubs, ground cover, or other deficiencies noted in the required landscaping, the bond will be held until the deficiencies are corrected - ' R�—dUIQW&-90001 PAGE I OF 2 "t UNFIT PRICE UhTT TYPE QUANMTY PRICE SOD LAWN AREAS 5500.00 MSF (1000 SQ- M HYDROSEEDTNG $50.00 MSF (1000 SQ- M 4,383 $ 219.50 SOII, PREPARATION A. TOPSOIL (6 INCITES DEEP) S25-00 CY (CUBIC YARD) 5 $ 125.00 B- MULCH (2 INCHES DEEP) C. PEAT MOSS (TWO INCHES DEEP) 54.00 52.30 SY (SQUARE YARD) SY (SQUARE YARD) 10 $ 40.00 D- COMPOST (3 INCHES DEEP & TILLING 526.00 SY (SQUARP YARD) ; E. FERTILIZER 56-67 CY (CUBIC YARD) PLANT .MATERIALS A. DECIDUOUS TREES - - 1-75 - 2-00" CALIPER (minimum height I0') PERIMETER & PARKING AREAS 5250.00 EACH COST & LABOR 9 $2,250.00 1-5 - 1.75" CAi.IPER TWEMIt L"DSCaln+G 6R OTtMR REQMREV LAMAC fW, $225-G0 EACH COST & LAB` it----- 3 -- i - $ - ~ 675.00 i B. EVERGREEN TREES I E FIVE (5) FEET OR ABO'vE 5150-00 EACH CSP & LABOR 16 $2,400.00 C. SHRUBS 535.00 EACH COST & LABOR 24 $ 840.00 ' SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: q 6,549.50 ' R�—dUIQW&-90001 PAGE I OF 2 "t 1 u FE--- I UNIT PRICE UNIT TYPE QU"77PTR71CF-_ COST & LABOR D. GROUND COVER $4.00 EACH MISCELLANEOUS TREE STAKES $2.65 EACH PER STAKE &LABOR FENCING: LINEAR FOOT SOLID WOOD CEDAR $28.50 INCLUDES LABOR GERMING $17.50 LINEAR FOOT INCLUDES LABOR IRRIGATION 80¢ SQUARE FOOT RELOCATING TREES ON SrM W BALL 5260.00 EACH 60" BALL, $920.00 EACH RELOCATING SHRUBS ON SITE I2" BALL $26.00 EACH 24" BALL $33.00 EACH ADDITIONAL ITEMS SUB TOTAL PAGE 2 $ 239.50 SUB TOTAL BOND AMOUNT BOND SUB TOTAL: 5 6,789.00 Add 30% of the Bond Sub -Total for Contingency in accordance with 30 % CONTINGENCY: Financial Guarantee Ordinance 120220, Section 13. 5 2,035.70 TOTAL BOND PRICE TOTAL BOND PRICE: 8,825.70 1 Rcvised LB11W IV29fLWI 9 tKING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL STORMWATER FACILITY SUMMARY SHEET Development W11- lfI S ' Location ,&613 i T# 4!IC ' ENGINEER DEVELOPER Name EL} Name d2aeloAl Firm 9,f 4n -X10 - c_ Firm <"' ' Address . 726 Rv"3U&,A1 GvA Address 2 $ FIST EKG cec 2- 2 - Phone ZS. 3 —22do Phone 8 Developed Site: Acres_ Number of lots--Lc- Number otsLONumber of detention facilities on site: Number of infiltration facilities on site: ponds ponds vaults vaults tanks tanks Flow control provided in regional facility (give location) No flow control required Exemption number Downstream Drainage Basins Ma or Immediate Basin ' Basin A Basin B Basin C Basin D Number & type of water quality facilities on site: ' biofiltration swale (regular/wet/ or sand filter (basic or large?} continuous inflow?) sand filter, linear (basic or large?) combined detention/WQ pond sand filter vault (basic or large?) (WQ portion basic or large?) combined detention/wetvault stormwater wetland compost filter wetpond (basic or large?.) filter strip wetvault ' flow dispersion farm management plan landscape management pian oil/water separator (baffle or coalescing plate?) catch basin inserts: Manufacturer ' pre -settling pond pre -settling structure: Manufacturer flow -splitter catchbasin ' DESIGN INFO UVIATION INDIVIDUAL BASIN A B C D Water QualLty design flow ' Water LWi treated volume or weT2nd Vr b acs. 9/1/98 1998 Surface Water Design Manual ' 1 ro ICING COUNTY, WASBINGTON, SURFACE WATER DESIGN MANUAL. 1 1 1 1 1 1 1 1 1 1_ Heading for the drawings should be located at the top of the sketch (top right-hand corner). The heading should contain: + North arrow (point up or to left) • D9# • Plat name 0r short plat number • Address (nearest) Date drawn (or updated) • Thomas Brothers page, grid number 2. Label CBs and MHs with the plan and profile designation. Label the control structure in writing or abbreviate with C -S. Indicate which structures provide spill control. 3. Pipes— indicate: Pipe size Pipe length Flow direction Use s single heavyweight line 4. Tanks-- use a double, heavyweight line and indicate size (diameter) 5_ Access roads • Outline the limits of the road • Fill the outline with dots if the road is gravel. Label in writing if another surface. 6. Other Standard Symbols: • Bollards: • • • i ■ ■ ■ ■ • Rip rap 000000 000000 Fences --x---x--- x—x---x--- x-- • Ditches--D--D----}D----O--D 7. Label trash racks in writing. S. Label all streets with the actual street sign designation. If you don't know the actual street name, consult the plat map. 9. Include easements and lot lines or tract limits when possible. 14. Arrange all the labeling or writing to read from left to right or from bottom to top with reference to a properly oriented heading. 11. Indicate driveways or features that may impact access, maintenance or replacement. 9!1/98 7 1998 Surface Water Design Manual 0 DESIGN TOTAL INDIVIDUAL B ASIN INFORMATION, contd Drainage basin(s) A B C D Onsite area S Offsite area Type of Storage Facility vn GJ Live Storage Volume O Ll Predevela ed Runoff Rate 2 -year 6.0 6,5 ek- 10-ycar O. ! D 100 -year t9 .316 Developed runoff rate 2 -year 0. 3 fL 10 -year C2.37 2 140 ear O1 T of restrictor oaf PCCe Size of orifice/restriction No. 1 I. 2 -- I /I No. 2 No_ 3 Na_ 4 FLOW CONTROL & WATER QUALITY FACILITY SUMMARY SHEET SKETCH All detention, infiltration and water quality facilities must include a sketch per the following criteria: 1 1 1 1 1 1 1 1 1 1_ Heading for the drawings should be located at the top of the sketch (top right-hand corner). The heading should contain: + North arrow (point up or to left) • D9# • Plat name 0r short plat number • Address (nearest) Date drawn (or updated) • Thomas Brothers page, grid number 2. Label CBs and MHs with the plan and profile designation. Label the control structure in writing or abbreviate with C -S. Indicate which structures provide spill control. 3. Pipes— indicate: Pipe size Pipe length Flow direction Use s single heavyweight line 4. Tanks-- use a double, heavyweight line and indicate size (diameter) 5_ Access roads • Outline the limits of the road • Fill the outline with dots if the road is gravel. Label in writing if another surface. 6. Other Standard Symbols: • Bollards: • • • i ■ ■ ■ ■ • Rip rap 000000 000000 Fences --x---x--- x—x---x--- x-- • Ditches--D--D----}D----O--D 7. Label trash racks in writing. S. Label all streets with the actual street sign designation. If you don't know the actual street name, consult the plat map. 9. Include easements and lot lines or tract limits when possible. 14. Arrange all the labeling or writing to read from left to right or from bottom to top with reference to a properly oriented heading. 11. Indicate driveways or features that may impact access, maintenance or replacement. 9!1/98 7 1998 Surface Water Design Manual 0 1 1 1 1 1 1 1 1 1 1 1 1 0 a 43.1E 12".1C E ®7-S — I W.S- 3:1 464.00 OT \ �q L ECOLOGY EILOCKS 1 a5T EL (SEE NOT 3) v -- I - - 25 DO i f - EME OVERFLO IA 3:1 ; (Sr 1) .. W EL.=467.22 5' OM I TRA T LINE 4 -but 2" LCPE r f ! 0,0.5 7. I 1 .b T LPE OYRFLOW MANH# E (SE£ DTL-) 0. 0% RlIV+ 467.16 24.31-F i C E I.F-.t 463.91 i __ �CHAINLINK FENCE _ 3D:} F S 2" LCRE 1.82% ♦ -� �' ,` .. C�� (SEE . C 16, 1+I RL C ATE W/ 8' S NG SECTIONS S.E. 167th CT.: (5tE t oE� �16$ p o _ CONTROLM =4,64.00 S ..IIti (SEE aTL.) 1E Ex. ssMri o rr rfi r/Q —r 68 _ rt RIIL=468.53 12' C , I£(N&5j8'=1456.71 lE=4 .16 0 z a UU � � J S � C7 S Y Q Z D J Q- z a I UUP z? z '+- 1, J cs 472 — y r 472 'EX. CRADE 470 48$ � 469 EMERGENCY OVERFLOW 467.22 t MAX. W.S. ® = EL.= 467.00- I 2 --YR W.S. ® EL.= 465-93 466 = 466 STACK 3 - EGG O Y BLOCKS q ' SEAL JOIN W MORTAR ' LEVEL 0 EL. 465.93 N W.O. W.S. 464.00 464 —�} �- 464 .32" WE 452 BOT EL-- 459-.d 460460 - 6i TOP DR£SSIN NOTES ABOVEOT. FL-- 459.00 (SEE - .--4-58 458 — -- _ TEXTURED GEOMEMBRANE LINER (SEE NOTES ABOVE) sEcTlanr A -A ! GdALE= I 3 f V6-127-- -30., 6-127 .30' uooz . 0 Z e,a w =WZ U O z �Zi 472 m O J { 472 �Y I a EX. GRADE 470 z - - — - — 470 YE-Gr1DN 9-)S i "= 3a `frU2f2 . ISS 458 EMERGENCY OVERFLOW W.S. @ EL.= 467-22 Z j MAX. W.S. 0 . _ EL,= 467.O F 2 -YR W.S_ 0 EL.= 465.93 - -- 46fi 46fi it--�----��-- -- N ic j{ W_Q. W.S. Ow EL.= 464.00 464 464 - ECOLOGY BLOCKS SEAL JOINTS Wf MORTAR 4' h! CrFI LEVEL ® EL.= 464.00 ',U E MORTAR TO REACH EL._ Uig 464.00 LCPE 462 `62 r f HDR1Z. EMBEOMENT EL.=463.pp(TYP.) BOT. EL.= 454. 460 - 450 TOP DRESSING (SEE NOTES A80VE} - 458 458 TEXTURED GEOMEMBRANE LINER (SEE NOTES ABOVE) YE-Gr1DN 9-)S i "= 3a `frU2f2 . ISS 1 1 1 1 1 1 1 1 1 1 1 1 1 472 CONTROL MH r— Ex. GRADE 470 4688 fufERGENCY OVERFLOW W.S. 0 EL_ 467.22 V MAX. W.5. 0 EL.= 467.00 466 2—YR w.5. @ EL. =4665=43 16 x2' 6' 24' NOTCH 0 CQ GY BLCCKS EL= 464.00 S. @ EL.= 464.00 464 — 5T T i — 12'.I-')ciRACJE 4 4-D 4" 1,: 462 — -- — y E = 63. til 2 x2' 6' 1 — CO GY L IS 4S 0 50% OVERLAP— TEXTURED GEOMEMBRANE LINER (SEE NOTES ABOVE) 458 s.Ecrlonr c -c 472 470 469 466 464 462 EL. =461.00 AMEN T 464 -- 458 SCA LE = I r VER r - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SECTION X OPERATIONS AND MAINTENANCE MANUAL 0* King County Department of Development and Environmental Services Inspector's Daily Report 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 Project No.:_ Project Name: Location: Date I Si; STormsTurrent FormsUns-DailFm - 01-16-2001 Activity No.: Developer/Contractor: REPORT Note: Each entry must be dated and signed . 0 0 p� IJL, Cooper, Ted From: Cooper, Ted Sent: Wedpesday, February 02, 2005 11:20 AM To: Hans Korve Cc: Melvin Daley; Bull, Trishah; Bergam, Mark Page i of 1 Subject: Wilkins Wood Plat (L03SR052) - Landscaping/Recreation Space Plan Conflicts with Engineering Plans Hans, It has been brought to my attention that there are serious conflicts between the Land scaping/Re creation Space Plan (approved by Trisha Bull on 1-9-2004) and the Engineering Plans that Mark Bergam and I approved on 7- 23-2004. Please notice that I did not get to see this Landscaping/Recreation Space Plan until after Mark and I approved the engineering plans. Since the Landscaping/ Recreation Space Plan was designed for an outdated set of engineering plans, this plan needs to be revised to be compatible with the current engineering plans that Mark Bergam and I approved on 7- 23-2004. Please redesign this plan to fit the current engineering plans and resubmit it for review and approval by both Trisha Bull and myself. Some of the key items that must be addressed are as follows: 1 . The current engineering plans have less available area for plantings than the previous versions of these plans (due to changes within and adjacent to both "Tract B" and "Tract C". For example, it appears that only smallest evergreens (e.g., like arborvitae) will fit along the northern and western sides of the pond tract. Douglas Fir and Western Red Cedar trees are likely to damage the pond and the tract roadway with their root systems. 2. King County's Surface Water Design Manual places restrictions on pond vegetation, such as the following; a . The canopies of shrubs and trees aren't allowed to extend over the pond's design water surface (at EL. 467.00'). b . No trees or shrubs are allowed within 10' of drainage structures or pipe inlet/outs. 3. Irrigation systems won't be allowed in pond "Tract B" or the Right -Of -Way adjacent to it. The storage volume of the pond could be compromised by the proposed irrigation system. A Special Use Permit would also be required for this irrigation system in the pond tract. It is very unlikely that this Special Use Permit would be granted here because King County doesn't want to maintain an irrigation system here. 4. The Street tree locations must match the locations approved on the engineering plans. 5. Please resubmit copies of revised Landscaping/Recreation Space Plans to both Trisha Bull and myself for our review and approval. I only need one set of these plans. Please contact Trisha Bull (206-296-6758) for the number of sets she requires. I will provide a copy of the current engineering plans to Trisha_ Please feel free to contact me if you have any questions. Sincerely, Ted Cooper, P.E. Engineer II Phone: (206) 296-7163 FAX: (2066) 296-6513 E -Mail: ted.cooper@metrokc.gov M.S. OAK -DE -0100 02/02/2005 (1) 0 0 King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 August 14, 2003 Hans Korve DMP, Inc. 726 Auburn Way North Auburn, WA 98002 RE: Wilkin's Woods (DDES File No.99L P3010) Revision Activity No. L03RE031 Dear Mr. Korve: The Subdivision Technical Committee has reviewed your revised plat of Wilkin's Woods and finds that the proposal is minor and within the spirit and intent of the preliminary approval. Based upon our findings, approval is granted to the revised preliminary plat received August 1, 2003, subject to all original conditions of approval and the following conditions: 1. The proposed change to the downstream drainage route is subject to a modification of the LOOV0040 SWDM adjustment prior engineering plan approval. Note, additional information regarding the capacity of the downstream conveyance system and/or downstream improvements may be necessary as indicated by findings in the LOOV0040 Adjustment. 2. Tracts A and D shall be designed and constructed as private urban minor access roads. Tract A shall be owned and maintained by lots 1-3, Tract D shall be owned and maintained by lots 6-9. Notes regarding ownership and maintenance shall be shown on the engineering plans and final plat. Enclosed is a copy of the approved revision for your records. If you have any questions, please call me at (206) 296-7167. Sinrely, m Claussen, Project Manager III Current Planning Section Cc: Mark Bergam, Senior Engineer, Engineering Review Section w/enc Randall Parsons, Senior Engineer, Engineering Review Section w/enc Steve Townsend, P.E., Supervising Engineer, Development Inspection Section w/enc Joanne Carlson, AS II, Engineering Review Section, LUSD w/enc File wlenc I King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 January 9, 2004 Hans Korve DMP, Inc. 726 Auburn Way North Auburn, WA 9$002 RE: Wilkin's Wood (DUES Project No. L99P3010 Recreation/Landscape Activity No. L03MI092 Dear Mr, Korve: This is in response to your request for approval of the landscape and recreation space plan for the plat of Wilkin's Wood. We have reviewed your plan and with the following condition, approve it as submitted: . The equipment (play equipment, benches, picnic tables, etc.) shall meet at a minimum, Consumer Product Safety Standards and be appropriately anchored. The landscaping and recreation space improvements (i.e. play structures, benches, etc.) must be installed and inspected or a performance bond posted, prior to plat recording. The amount of the performance bond has been established at $16,000. This includes landscaping, equipment, surfacing materials, etc. The bond amount has been revised to include play equipment and a thirty percent contingency. Street trees and pond plantings are not included in this approval. An inspection fee is also due prior to recording. This fee covers the cost of an installation inspection and a maintenance inspection. If a performance bond is posted, the improvements must be installed within one year's time from the posting date. The Land Use Services Division will conduct an inspection following the anniversary of the posting date; or you may request in writing, an earlier inspection date if the improvements are fully installed prior to that date. At the time of inspection, if the improvements are fully installed per the approved plan, the performance bond may be replaced with a maintenance bond. The maintenance bond will be held for two years to ensure that the landscaping is kept healthy and thriving. Upon approval of the landscaping improvements, the maintenance bond is releasable. Enclosed is a copy of the approved plans for your records. If you have any questions, please call me at (206) 296-675$. V6 • i Sincerely, Trishah Buil, Planner lI Current Planning Section, LUSD Cc: Joanne Carlson, Administrative Specialist II, Engineering Review Section, LUSD wlenc Steve Townsend, Supervising Engineer, Land Use Inspection Section, LUSD wlenc Kim Claussen, Planner III, Current Planning Section, Land Use Services Division FGMU File fA 0 I* E J cJ tD Q N N � � on O �J (/�1 lJ OL SPI (D 0 7; OD, c3 J� rn ❑ Q Q (D N � < a C D a Q O n _C CfS m DEC cuL� K.C. D.D.E.S ❑ a O m� W ❑ � m� Q W �5..i �n n cn c m 0 cn U1 co W @ ° N O m (D I* E J cJ tD Q N N � � on O �J (/�1 lJ OL SPI (D 0 7; OD, c3 J� rn ❑ Q Q (D N � < a C D a Q O n _C CfS m DEC cuL� K.C. D.D.E.S KING COUNTY Dept, of Development WDSCAYE BOND QUANTITYOORKSIIEE`X' FORM PROJECT NAME: Wilkens Wood and Environmental Services DDES PROJECT #: E 9 9 P 3 01 0 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 ADDRESS: 1 661 3 - 113th Ave. SE Renton 206/296-6600 PREPARED BY: Hans Korve PHONE_253-333-2200 Bonds are based upon required landscaping only and will be posted for performance and/or maintenance. Required landscaping includes perimeter landscaping, surface parking area landscaping, (KCC 21A.16) and any landscaping required by SEPA environmental review The maintenance period is for the life of the project, however, after posting for maintenance, the performance bond will be reduced to 30%($1,000.00 minimum) and be held for a two year period. Upon re -inspection of the site the bond will be released if the site has been properly maintained (21A.16.180). If the project has not been maintained and there are dead trees, shrubs, ground cover, or other deficiencies noted in the required landscaping, the bond will be held until the deficiencies are corrected. CIDOCS1nNNAUANDSC&MONDQUAN.FRM 04062001 4.35 PM PAGE 1 OF 2 LD?) 11h 1002 UNTT PRICE UNIT TYPE QUANTITY PRICE SOD LAWN AREAS $500.00 MSF (1000 SQ. FT) 1,892 [ 1 $ 946.00 HYDROSEEDING $50.00 MSF (1000 SQ. FT) 4,383 [ ] $ 219.15 SOII. PREPARATION A. TOPSOIL (6 INCHES DEEP) $25.00 CY (CUBIC YARD) 35 $ 876.00 B. MULCH (2 INCHES DEEP) 54.00 SY (SQUARE YARD) 426 $1 , 701 .00 C. PEAT MOSS (TWO INCHES DEEP) $,2.30 SY (SQUARE YARD) D_ COMPOST (3 INCHES DEEP & TILL NG $26.00 SY (SQUARE YARD) E. FERTILIZER $6.67 CY (CUBIC YARD) 1 $ 6.67 PLANT MATERIALS A. DECIDUOUS TREESDEC 1 12003 1.75 - 2.00" CALIPER (minimum height 10') & PARKING AREAS $250.00 EACH COST & LABOR K.C.PERIMETER KD.D. .S. I.5 - 1.75" CALIPER FNTERIOR L\NMC:APING OR OTHER REQVIRFD LANDSCAPING $225.00 EACH COST & LABOR 4 $ 900.00 3" Caliper $300.00 ea If If'9''i" , B. EVERGREEN TREES $ t) FIVE (5) FEET OR ABOVE $150.00 EACH COST & LABOR ' Z , X15 C. SHRUBS , $35.00 EACH COST & LABOR [SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: CIDOCS1nNNAUANDSC&MONDQUAN.FRM 04062001 4.35 PM PAGE 1 OF 2 LD?) 11h 1002 PRICE --7WT UNIT TYPE \iTITY 11RICE D. GROUND COVER $4.00 EACH COST & LABOR 1 2 0 $ 480.0.0 MISCELLANEOUS TREE STAKES $2.65 EACH PER STAKE &�•�� LABOR -44 $ -1i-:95. FENCING: SOLID WOOD CEDAR $28.50 LINEAR FOOT INCLUDES LABOR BERMING $17.50 LINEAR FOOT INCLUDES LABOR IRRIGATION 80¢ SQUARE FOOT .rte}• RELOCATING TREES ON SITE 36" BALL $260.00 EACH 60" BALL $920.00 EACH RELOCATING SHRUBS ON SITE 12" BALL $26.00 EACH 24" BALL $33.00 EACH ADDITIONAL ITEMS a35ZZ 4 D .SD SUB TOTAL BOND AMOUNT Add 30% of the Bond Sub -Total for Contingency in accordance with Financial Guarantee Ordinance 120220, Section 13. TOTAL BOND AMOUNT BOND SUB TOTAL: $ Contingency: $ 6,038.75 56277 TOTAL BOND PRICE: $ 26,167.92 T7 of KING COUNTY r epi- of Development Ind Environmental Services ` Oakesdale Avenue Southwest Renton, WA 98055-1219 Bonds are based upon required landscaping only and will be posted for perfortnance and/or maintenance. Required landscaping includes perimeter lisn=ort ing,surface parking area landscaping, (KCC 2IA.I6) and any landscaping required by SEPA environmental review_ The uaainteaaaoe period e life of the project, however, after posting for maintenance, the performance bond will be reduced to 30% (S 1,000.00 minimum) and be held for a two year period. Upon re -inspection of the site the bond will be released if the site has been properly maintained (2]A.16.180). A landscape maintenance inspection deposit of S316_80 is required prior to permit issuance to cover the costs of the 2-ye2r maintenance inspection. landscape inspections are billed at the current hearty rate once the initial deposit is exhausted. If the project has not been maintained and there are 3cad trees, shrubs, ground cover, or other deficiencies noted in the required landscaping, the bond will be held until the deficiencies are corrected iJ PROJECT NAME: DDES PROJECT #: E BOND QUANTITY Wilkens Wood L99P3010 FORIM ADDRESS: 15613 - 113th Ave. SE, Renton PREPAY BY: Hans Korve pHON-E: 253-333-2200 E. FERTILIZER MTT PRICE UNIT TYPE QUAiN TM ! PRICE { SOD LAW -14 AREAS 3500.00 MSF (1000 SQ. FI) HYDROSEEDING S50.00 MSF (1000 SQ. FT) 4 , 3 8 3 $ 219 A- DECIDUOUS TREES SOIL PREPARATION 5250.00 EACH COST & LABOR 9 $2,250.00 A_ TOPSOIL. (6 INCHES DEEP) S25.00 CY (CUBIC YARD.) 5 $ 125-.00 B. MULCH (2 INCHES DEEP) $4.00 SY (SQUARE YARD) 10 I $ 40.00 C_ PEAT MOSS (TWO INCHES DEEP) S2.30 SY (SQUARE YARD) ! D_ COMPOST (3 INCHES DEEP & TILLING P6.00 SY (SQUARE YARD) 16 $2,400.00 E. FERTILIZER $6.67 CY (CUBIC YARD) PLANT MATERIALS A- DECIDUOUS TREES 1.75 - 2.00" CALIPER (minimurn height I O') PERIMETER & PARKING AREAS 5250.00 EACH COST & LABOR 9 $2,250.00 1.5 - 1-75" CA1-1PER WrOMR LWDSCANW; OR OT"" Re*', RFS L.WDSCAMOG $22-5.00 EACH COST & LAB6R 3 -- $ 675.00 ¢j B. EVERGREEN TREES ! 1 FIVE (5) FEET OR ABOVE $150.00 EACH COST & LABOR 16 $2,400.00 1 � c. sHRu!as S35.00 EACH eosr & LABOR 24 $ 840.00 'SUB TOTAL BOND AMOUNT BOND AMOUNT SUB TOTAL: I! s 6,549.50 Rev—aLSQW 902-9-100t PAGE I OF 2 Revised L.BQW W292001 j T PRICE W � UNIT TYPE ANTITY PRICE D. GROUND COVER 54,00 EACH COST& LABOR 40 $ 160-00 MISCELLANEOUS :GREE STAKES $2.65 EACH PER STAKE & LABOR 30 $ 79.50 FENCING: SOLID WOOD CEDAR 528.50 LINEAR FOOT INCLUDES LABOR BERMING $17.50 LINEAR FOOT INCLUDES LABOR IRRIGATION 80¢ SQUARE FOOT RELOCATING TREES ON SrM 36" BALL 5260.00 EACH 60" BALL 5920.00 EACH RELOCATING SHRUBS ON SITE 12" BALL 526.00 EACH 24" BALL $33.00 EACH ADDETIONAL ITEMS SUB TOTAL PAGE 2 $ 239.50 SUB TOTAL BOND AMOUNT Add 30% of the Bund Sub -Tota! for Contingency in accordance with FnaneW Guarantee Ordinance 120220, Section 13- TOTAL BOND PRICE BOND SUB TOTAL: $ 6,789.00 30 % CONTINGENCY: 2,036.70 TOTAL BOND PRICE: $ 8,825.70 Revised L.BQW W292001 j X 103 (F) 0 c 3 R XW� o C) Z orn CD N �. D 11� ff O CO Cl) m C7o -1 O CD Cn(D CA r+ SOC 0 0 Page 1 of 1 DDES King County Department of Development and Environmental Services 900 Oakesdale Ave SW Renton, Washington 98055-1219 December 5, 2005 Summary of Related Activities/Proiects/Dev. Applicant: DREAMCRAFT HOMES 215 E MEEKER KENT, WA 98032 253 859 9697 Activity Number: Project Number: L99P3010 Development Number: PRE -PLAT Status: PRELAPPR Activity/Project # Comp Type Status Fee Charges Hours Charges Payments Balance Due L99P3010 PRE -PLAT PRELAPPR $575.00 $17,410.50 $17,985.50 $0.00 A04BN314 BOND OPEN $306,712.00 $0.00 $0.00 $306,712-00 A05BNO40 BOND OPEN 516,000.00 $0.00 $0.00 $16,000.00 A05BN457 BOND OPEN $2,500.00 $0.00 $0.00 $2,500-00 A98MO487 PREAPP-M MTG-HELD $500.00 WOO $500.00 $0.00 LOOV0040 SUBVAR GRANTED $93.50 $1,980.00 $2,073.50 $0.00 L03MI092 L-MISC COMPLETE $0.00 $762.46 $762.46 $0.00 L03RE031 REVISION COMPLETE $111.58 $724.50 $836.08 $0.00 L03SR052 SITEREV PLANCOMP $1,914.25 $28,945.52 $30,714.87 $144.90 *L04S1161 INSPECT OPEN $22,922.34 $0.00 $1,965.60 $20,956.74 L04SI162 INSPECT OPEN $102.64 $796.96 $0.00 $899.60 *L05FRO64 FINAL PENDING $6,823.78 $0.00 $5,000.00 $1,823-78 L05SI249 INSPECT OPEN $2,710.84 $0.00 $0.00 $2,710.84 TOTAL: $360,965.93 $50,619.94 $59,838.01 $351,747.86 * Asterisk denotes Permit under Project Management fees shown above represent current charges as of this date and are an estimate based on the information sided to DDES at the time of application. services that are rendered on an hourly basis, the cost of those services will be based on the actual hours ked. Hourly fees are charged at the rate in effect at the time of service, and will be billed monthly, along with other outstanding fees. s that have been posted prior to permit issuance will be collected at that time. Fees subsequently posted will be ;d to the applicant. All fees must be paid in full before ODES issues Final Approval, T.C.O. or C.O. 0 Yasmoothr, Tham From: Eddy, Bob Sent: Thursday, December 01, 2005 2;28 PM To: Yasmoothr, Tham Cc: Cheatum, Tim Subject: Street Tree activity/file Would you please add a Street Tree Activity to L99P3010 and give folder to Tim. Thanks (i) King County Department of Development and Environmental Services InSAector's Daiiv Rei)ort 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 Project No.:_ L99P3010 Activity No.: L04S1161 Project Name: Wilkins W Location: Developer/Contractor: Date Signed REPORT Note: Each entry must be dated and signed 3126/ ��• . Arrived at plat to proof roll. Contractor had already placed Bottom Base Course on subgrade. Proof rolled with truck filled with recycled concrete, and ecology blocks. Found only one spot that pumped, (adjacent to CB 5). Contractor has taken bedding sand he had left over and spread it on top of the Bottom Base Course. I informed contractor that that has contaminated the base course and the sand and base course would have to be removed and the base course replaced with clean material prior to paving. —P 2,fyo''� I r� L._ J Jason Fngineering, & Consulting Business, Inc. CUTTINGEDGE DEVELOPMENT INC. P.O. Box 8382 Covington, WA 98042 Attn: Derek Freeman Re: Field Density Report Geotechnical Fngineering Date: 08/04/2006 Retaining Structures Project: Covington Point Project Management/ Inspection File #: 06009-017 Pavement Design &r Analysis As requested JASON ENGINEERING performed on-site density testing in accordance with current applicable standards. The results obtained were as follows: Sail Type Description Maximum Density Optimum Moisture A 5/8" Crushed 122.3 8.0 Not Location/Depth yp.Tole Density We appreciate this opportunity to be of service to you and we look forward to working with you in the future" If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 786-8645. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. --C- W 1ason McArdel Engineer Jason E.C. Bell, P.E. President PO Box 181 Auburn WA. 98071 Page I of l Phone: (206) 786-8645 Fax: (253) 833-7316 Email: jecbpe�?yahoo.com In Place Percent MY Percent Percent Not Location/Depth yp.Tole Density Moisture Density Compact Required lbs/ft' % lbs/W % % 1 Curb line 20' West of CB #2 A 124.8 5.3 118,6 97.06 95.0 2 Curb Line 30' North of CB #3 A 123.8 4.8 118.1 96.6 95.0 3 1 Curb Line 40' West of CB #4 A 1 124.7 5.5 118.2 96.7 95.0 We appreciate this opportunity to be of service to you and we look forward to working with you in the future" If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 786-8645. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. --C- W 1ason McArdel Engineer Jason E.C. Bell, P.E. President PO Box 181 Auburn WA. 98071 Page I of l Phone: (206) 786-8645 Fax: (253) 833-7316 Email: jecbpe�?yahoo.com Jason Engineering & r iConsulting; Business, Inc. CUTTINGEDGE DEVELOPMENT INC. P.D. Box 8382 Covington, WA 98042 Attn: Derek Freeman Re: Field Density Report Geotechnical EngineeringDate: 4-13-2006 Retaining Structures Project: Wilkenswood, 16617 Project Management/ Inspection 113th ave SE, Renton Pavement Design €r Analysis File ##: 06009-014 As requested JASON ENGINEERING performed on-site density testing in accordance with Current applicable standards. The results obtained were as follows: Soil Type Description Maximum Density — Optimum Moisture A Gravel borrow 139.2 7.3 1 50 ft from SSMH#1 to #2, 4 ft below grade A 138.1 No` Location/Depth TO1t Type In Place Density lbs/fO Percent Moisture % Dry Density Ito/ft' Percent Compact % percent Required % 1 50 ft from SSMH#1 to #2, 4 ft below grade A 138.1 7.4 128.6 92.4 90.0 2 80 ft from SSMH#2, top lift A 139.3 7.0 130.2 935 95.0 3 50 ft from SSMH#2, top lift A 140.6 6.3 132.2 95.0 95.0 4 50 ft from SSMH#2, 2 ft below grade A 7.42.7 5.7 135.0 970 95.0 We appreciate this opportunity to be of service to you and we look forward to working with you in the future. If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 7864645. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. �r Jason McArdel Engineer Jason E.C. Hell, PE. President PO Sox 181 Auburn WA. 98071 Page 1 of I Phone: (206) 786-8645 Fax: (253) 833-7326 Email: jecbpeo7t`yahoo.com • Jason l.i Fngineering & Consulting Business, Inc. CUTTINGEDGE DEVELOPMENT INC. P.O. Box 8382 Covington, WA 98042 Attn: Derek Freeman Re: Field Density Report 0 Geotechnical Enb-ineering Date: 4-10-2006 Retaining Structures Project: Wilkenswood, 16617 Project Management/ inspection 113th ave SE, Renton Pavement Design & AnalYsis File #: 06009-013 As requested JASON ENGINEERING performed on-site density testing in accordance with current applicable standards. The results obtained were as follows: Soil Type Description Maximum Density C pt mum Moisture A Gravel borrow 139.2 7.3 8 Pit run 132.8 7.5 NoTest Location/Depth ypTore In Place Density lbs/ft3 Percent Moisture % Dry Density lbs/W Percent Compact j Percent Required 1 100 ft west of 113th, top lift of water line A 144.0 7.4 134.0 96.3 90.0 2 70 ft west of 113th, top lift of water tine A 143.3 7.5 133.2 95.7 90.0 3 150 ft west of 113th, top lift of water line A 141.9 6.3 133.5 95.9 95.0 4 140 ft west of 113th, 2 ft above storm crossing 13 137.2 6.8 128.5 %.8 95A 5 740 ft west of 113th, 2 ft above storm crossing B 146.0 7.5 135.9 100+ 1 95.0 6 100 ft west of 113th, 3 ft above hydrant ex tention A 147.9 7.3 137,8 99.0 95.0 7 35 ft west of 113th, 4 ft above storm crossin 8 146.7 8.9 134.7 100+ 95.0 We appreciate this opportunity to be of service to you and we look forward to working with you in the future. If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 786-8645. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. t F-: Jason McArdel Engineer Jason E.C. Bell, P.E_ President PO Box 181 Auburn WA. 98071 Page I of 1 Phone: (206) 786-8645 Fax: (253) 833-7316 Email: jecbpeshyahooxorn 1, Jason Engineering & Consulting - - ]Rutiinrtis, Inc. CUTTINGEDGE DEVELOPMENT INC. P.O. Sox 8382 Covington, WA 98042 Attn: Derek Freeman Re: Field Density Report r__1 Geotechnical EngineeringDale: 4-6-2DD6 Retaining Structures Pr6ect: Wilkenswood, 16617 Project Management/ inspection 113th aveSE, Renton Pavement Design & Analysis File #l: 06009-012 As requested JASON ENGINEERING performed on-site density testing in accordance with current applicable standards. The results obtained were as follows-. Soil Type Description Maximum Density Optimum Moisture A Imported ravel it run 135.8 7.3 1 40" west of existing tie in, MH, 4 ft d Lep A Test No. Type In Place Density Ibs/ftl Percent Moisture n/➢ Dry Density lbs/ft, Percent compact Percent Required % 1 40" west of existing tie in, MH, 4 ft d Lep A 135.1 7.5 125,() 94. t 90.0 2 9(' west of exiting tie in MH, 4 ft deep A 138.8 79 128.7 96.4 90.0 3 60' west of.exiting tie in MH, top lift A 138.6 6.3 130.4 97.7 95.0 4 91Y west of exiting tie in MH, top lift A 144.1 1 6.3 135.6 98.3 95.0 We appreciate this opportunity to be of service to you and we look forward to working with you in the future. If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at 1206) 786-8645. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. Jason McArdel Engineer Jason E,C. Bell, P.E. President PO Box 181 Auburn WA. 98071 Page 1 of t Phone_ QDh) 786-8645 Fax: (253) 833-7316 Email: jecbpeGryahoo.cotn i. Jason Fngineering & Consulting ...L: Business, Inc. CUTTINGEDGE DEVELOPMENT INC. P.O. Box 8382 Covington, WA 98042 Attu: Derek Freeman Re. Daily Report 0 Geotechnical Engineering Retaining Structures Project Management/ Inspection Pavement Design .fir Analysis Date: 4-1-2006 Project: Wilkenswood, 16617 113th ave SE, Renton File #: 06,009-011 As requested, JECl3 engineer arrived on site to take density tests on trench for native utilities. Native material was placed back in the trench and compacted, Native material is not suitable for trench backfill. The native material is an orange brown sandy silt with gravel and 20% fines. This same material may be used as a pond liner. Pond liner material and trench backfill under a road are not equal materials. Trench backfill should be a clean imported structural fill, especially in roadway areas_ Native material may be used in the trench if placed deeper than 6 feet from grade and above the pipe bedding, but it is not recommended. We appreciate this opportunity to be of service to you and we look forward to working with you in the future, if you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 786-8645. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. Jason E.C. Sell, P.E. President PO Box 181 Auburn WA. 98071 Page I of 1 Phone: (206) 786-8645 Fax: (253) 833-731b Email: jecbpe++'yahoo.com • 1; jason Fngineering & Consulting Business, Inc. CUTTINGEDGE DEVELOPMENT INC, P.D. Box 8382 Covington, WA 98042 Attn: Derek Freeman Re: Field Density Report F_ -I LJ Geotechnical F.nginecringDate: 3-30-2(106 Retaining 5tructu"L' Project: Wilkenswood,16617 Project Management/ Inspection 113th ave SE, Renton Pavement Design $r Analytiis File #: 06009-003 As requested JASON ENGINEERING performed on-site density testing in accordance with current applicable standards. The results obtained were as follows: Soil Type - Description Maximum Density Optimum Moisture A Im orted ravel/ it run 135.8 7.3 B Imported 1'/4" crushed 140.7 7.2 Teat Soil In Place Percent Dry Percent Percent Nu Location/ Depth .Type Density Moisture Density Compact Required lbs/ft3 °h lbs/ftp % 0/9 Storm drain on frontage of 113th, 20' from 1 C510 to C11311, outside or road A 138 .1 10.1 125.4 92.4 95.0 Storm drain on frontage of 113th, 50' from 2 CB10 to CB11, outside or road A 141.8 I U.5 ! 28.3 94.5 95.0 3 Waterline crossing, north B 146.9 9.7 133.9 95.2 95.0 4 Waterline crossing,south B 147.2 9.6 134.3 95.5 95.0 We appreciate this opportunity to be of service to you and we look forward to working with you in the future. If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 7$6-8"5. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. Jason F.C. Bell, P.E. President PO Box 181 Auburn WA. 98071 Page 1 of I Phone: (2011) 786-13645 Fax -(253)833-7316 Email: jecbpe(«)yahoo.com i Jason Fngineering & Business, Inc. CUTTINGEDGE DEVELOPMENT INC. P.O. Box 8382 Covington, WA 98042 Attn: Derek Freeman Re: Field Density Report Is Geotechnical F.ngincering, Retaining Structures Project Management/ Inspection Pavement Design & Analysis Date: 02-23-2007 Project: Wilkenswood File #: 06009-033 As requested JASON ENGINEERING performed on-site density testing in accordance with current applicable standards. The results obtained were as follows: Sail Type Description Maximum Density optimum Moisture A 3/8" Crushed Palmer 137.2 6.9 B 1 '/4" Crushed Palmer 141.4 S.5 Test No, Location/ Depth Soil Type In Place Percent Density 1 Moibture lbs/ft' % Dry Uensity lbs/ft' Percent Compact °/a Percent Required 1 20' West, CB2 sidewalk A 139.2 6.8 134.4 98.1 95.0 2 50' West, CB2 sidewalk A 141.3 i 7.5 131.5 95,8 95.0 3 25' East, C133 road B 144.9 8.0 134.2 95.2 95.0 4 25' West, CB2 road B 146.2 7.7 135.7 96.2 95,0 We appreciate this opportunity to be of service to you and we look forward to working with you in the future. If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 786-M5. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC, Joe Caldwell, Inspector Jason E.C. Bell, P.E. President PO Box 181 Auburn WA. 98071 Page 1 of 1 Phone: (206) 7136-8645 Fax: (253) 833-7316 Email: jecbp€t!'yahoo.com • Jason 1'. Engineering & �t Consulting Business, Inc. CUTTINGEDGE DEVELOPMENT INC. P.O, Box 8382 Covington, WA 98042 Attn: Derek Freeman Re: Field Density Report 0 Geotechnical EngineeringDate: 12-27-2006 Retaining Structures Prosect: Wilkenswood Project Management/ Inspection File #: 06409-031 Pavement Design & Analysis As requested JASON ENGINEERING performed on-site density testing in accordance with current applicable standards. The results obtained were as follows: Soil "type Description Maximum Den-sity Optimum Moisture A I t/a" Crushed135.0 17,0 Test No- Location/ Depth Soil Type In Place Density lbs/ft' Percent Moisture % try Density !t>s/fe Percent Compact % Percent Required % 1 Curb and Gutter 25+65 A 144.7 15,11 122.2 90.52 90.0 2 Curb and Gutter 25+20 A 140.5 13.55 123.741.63 40.0 3 Curb and Gutter 2+00 A 135.9 9.74 123.8 91.74 40,0 4 Curb and Gutter 4+50 A 137.0 9.47 i 24.6 92.3 t 90,0 We appreciate this opportunity to be of service to you and we look forward to working with you in the future. If you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (206) 786-8645. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. i Japfi E.C. Bell, President _ F.kPIRi:S (N 03 21wy PO Box !SI Auburn WA. 98071 Page t of 1 Phone: (206) 756-8545 Fax: (253) 833-731b Email. jecbpe «lyahoo.com • Jason Fngineering & Consulting ,- Business, Inc. CUTTINGEDGE DEVELOPMENT INC, P.O. Box 8382 Covington, WA 96042 Attn: Derek Freeman Re. Field Report Ll Geotechnical Engineering Retaining Structures Foundation Diosign Pavement Design & Analysis JFCB engineer visited site today to verify proper placement and compaction of materials along 1131n Ave SE. Contractor was creating new shoulder walkway along southbound Iane near SE 164th St. Material was native excavated from utility trench lines during previous improvements. This material is suitable for use in shallow, non driving lane applications as long as acceptable compaction can be achieved. A proof roll should be conducted prior to crushed rock placement. Date: 4-26-2006 Project; Wilkenswood,16617 113th ave SE, Renton File 4: 06004-006 We appreciate this opportunity to be of service to you and we look forward to working with you in the future- if you have any questions concerning the above items, the procedures used, or if we can be of any further assistance please call on us at (246) 786-W5. Respectfully Submitted, JASON ENGINEERING AND CONSULTING BUSINESS, INC. Jason McArdel Engineer PO Box 181 Auburn WA. 98071 Page 1 of l Phone: (206) 786-8645 Fax. (253) 833-7316 Email. jechpe^yahnn.com Icing County 0 Department of Development and Environmental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 Name of Development Address of Development Developer: RE RT of CONSTRUCTION DEFICIENCY Land Use Inspection Section Contractor: Project No. Activity No. The following deficiencies have been observed on the site referenced above and must be completed by or further action may be taken. '1: -31 INSPECTOR: i, r PHONE: Print nameldate 1658 (Rev. 91001 White: Developer Yellow: General Contractor Pink: Inspector King County 01 Department of Development REP&T o F' and Environmental Services CONSTRUCTION DEFICIENCY Land Use Services Division 900 Oakesciale Aver= Southwest Land Use Inspection Section Renton, WA 98055-1219 Name of Development Address of Development Developer: Contractor: Project No. Activity No. The following deficiencies have been observed on the site referenced above and must be completed by or further action may be taken. REMARKS: INSPECTOR: PHONE: Print name/dale 1658 (Rev. 9!001 White: Developer Yellow: General Contractor Pink: Inspector King County 0 Department of Development and Environmental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 REPfRT OP�- CONSTRUCTION DEFICIEfiCY Land Use Inspection Section Name of Development Address of Development Developer: Contractor: Project No. -� Activity No. ` The following deficiencies have been observed on the site referenced above and must be completed by c or further action may be taken. REMARKS: INSPECTOR.-� :..., i.,_ y . ' PHONE: Print namefdate - 1658 (Rev. voa) White: Developer Yellow: General Contractor Pink: Inspector AWN King County Department of Development RE RT OPo and Environmental Services CONSTRUCTION DEFICIEI4CY Land Use Services Division 900 Oakesciale Avenue Southwest Land Use Inspection Section Renton, WA 98055-1219 Name of Development Project No. Address of Development Activity No. Developer: Contractor: The following deficiencies have been observed on the site referenced above and must be completed by or further action may be taken. REMARKS: INSPECTOR: PHONE: Print nameldate 1658 (Rev. 9/00} White: Developer Yellow: General Contractor Pink: Inspector 0 01 King County Dept. of Development and Environmental Services Land Use Services Division, UPD Unit 900 Oakesdale Avenue Southwest Renton, Washington 98055-1212 Phone: 206-296-7232 Fax: 206-296-7174 To: CDI General Contractor Fax: 263 639-8877 Phone: 253 631-7600 From: Tim Cheatum Pages: 2 Date: 09/14/2006 RE: Notice of Construction Deficiency for Wilkins Wood (L99P3010) Urgent ❑ For Review ❑ Please Comment ❑ Please Reply ❑ Please Recycle i Comments: 0 0 King County Dept. of Development and Environmental Services Land Use Services Division, UPD Unit 900 Qakesdale Avenue Southwest Renton, Washington 98055-1212 Phone: 206-2%-7232 Fax: 206-296-7174 To: Dreameraft Homes Fax: 253 854-5208 Phone: 253 859-9697 From: Tim Cheatum Pages: 2 Date: 09/14/2006 RE: Notice of Construction Deficiency for Wilkins Wood (1.99123070) Urgent ❑ For Review ❑ Please Comment ❑ Please Reply ❑ Please Recycle • Comments: King County 0 Dept. Of Development and Environmental Services Land Use Services Division 9110 Oaksdale Avenue 5W Renton, WA 98055-1219 Name of Development: Wilkins Woods Project No. L99P3010 Address of Development: 16613 113th Ave SE Activity No. L04SI161 Developer: DREAMCRAFT HOMES Contractor: CDI General Contractors % MICHAEL J. FEUERBORN 3502 B STREET NW Auburn, WA 98001 P.O. Box 8382 Covington, WA 98042_ The following deficiencies have been observed on the site referenced above and must be completed by September 18, 2006 or further action may be taken. REMARKS: 1. Install Temporary chain link fencing around project 2. Installation of trail is too high in some locations, adjust trail elevation to prevent drainage problems on neighboring properties. 3. Shoulder work, along 113th Ave SE, needs to be graded smooth and large rocks (6" or larger are to be removed). 4. Verify that drainage along 113th Ave SE (north of the project) has been installed correctly. 5. If site is not going to be worked during winter months, install adequate ESC measures. i.e. if area is not being worked for 30 days, all exposed areas are to be seeded with and ESC mixture and maintained so that adequate growth occurs Inspector: Tim Cheatum Department: Land Use Phone: 206-296-7232 Date: September 14, 2006 0 Kind County Department of Development and .Environmental Services ]D ES Land Use Services Division 900 Oakesdale Avenue SW Renton, WA 98055-1219 0 NOTICE OF VIOLATION AND CHARGES LAND USE INSPECTION SECTION Project Wilkens Wood Project No. 1_99P3010 Street Name 16613113 th Ave SE Activity No. L04SI161 Issued To Cutting Edge Development Violation No. Issued To Dreamcraft Homes Owner Dreamcraft Homes ATTN: Michael J. Feuerborn Address 3502 B St NW Auburn, WA 98001 I have inspected the above construction and have the following violation/deficiencies of County ordinances or approved plans: 1.) Work on site has been stopped by contractor. Site needs to be completely stabilized for Erosion/Sediment Control. Aooendix D of the KCSWDM states that for exposed areas not bein worked within 30 days the area will be seeded with the temporary seed mix or an equivalent mix that will provide rapid protection. Stabilization is to be provided for all exposed areas both on and off site portions of the project. 2.) Safety fencing is to be provided around the pond. The yellow ribbon is inadequate safety measure. If compliance is not met by date below, the restoration bond will be used to bring the proiect into compliance. The warning does not constitute a Notice and Order pursuant to KCC 23.24, but is intended to inform you that corrective action must be taken. Pursuant to KCC 27.02.070: A fee assessed at the current hourly rate shall be charged for Department staff time associated with Code Enforcement actions. For inspection activities created on or after March 4, 1999: ❑ If checked, a $440 or $203.50 (residential only) reinspection fee will be assessed. If follow-up inspection of this property on or after June 16, 2006` reveals this violation has not been corrected, appropriate enforcement action will be initiated. Violation issued by: Tim Cheatum Telephone: 206-296-7232 WPA-IJISFORMS999/Notice of Violation & ChargesIdoc 3/8100 CIC Date: June 14 2006 Ll King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 December 2, 2005 DMP Engineering Attn: Mel Daley 726 Auburn Way North Auburn, WA 98002 Dear Mr. Daley: Thank you for your E-mail of November 29, 2005 requesting that you be allowed to record the subdivision of Wilkens Wood, L97P3010., prior to the installation of controls necessary to manage surface drainage as required in King County Code (K.C.C. 9.04.090). The code allows the Department of Development and Environmental Services (DDES) to defer the installation of these improvements in order to minimize construction impacts due to work during inappropriate times of the year. I will allow your subdivision to record prior to the installation of surface drainage controls provided these additional conditions are met: I . A Cash Performance Financial Guarantee in the amount of $57,800 is deposited with DDES to assure surface drainage controls are installed at the earliest appropriate time of the year. This Financial Guarantee will allow the normal amount be reduced by an equal amount (e.g. $248,912.70 remaining)_ Other Financial Guarantees will be required as per normal King County recording policies and procedures. 2, The applicant must execute an Agreement to Complete and install the necessary surface water drainage controls for the site on or before July 31, 2005. 3. All outstanding fees are paid and other plat conditions are addressed. 4. Building permits shall not be issued until drainage facilities are "in operation" and have approved by the Land Use Inspection Section. If you have any questions about this letter , please contact Ray Florent Engineering Review at raymond.florent@metroke.gov or by telephone at 206-296-6790. Sinc ely, ames H. S nders, P.E. Development Engineer cc: Raymond Florent, Supervising Engineer Land Use Services Division, DDES Steve Townsend, Supervising Engineer, Land Use Inspection Section, DDES Dreamcraft Homes, Attn: Michael Feurerbom, 3502 B St NW, Auburn WA 98001 (9 0 King County Dept. of Devc(opment and EnvjronrnMtal Services Land Use Services Division god Oakesdale Avenue Southwest Renton, WA 98055-1219 DATE: l Z - i ` (D S E SUBDIVISION and SHORT SUBDIVISION REQUEST TO RECORD Interoffice Memo Y TO: _� M Lq) TL)Land Use Inspection} ,rction RE: Project Name: W l L -K( S ©pD •` Pr-,ect No.: 09P,3010 Project name as shown on recording document. Final Act .: sy No.: L( ) !S- Fp. Q -. Inspection Act ity No.: LC) 4 S-1- L 6 [ Please inspect the above -referenced subdivision plat for the following itf -.Is: The Land Use Inspection Section does not recommend recording if -W of the items are marked No 1. KCC 9.04.090(c): Are those portions of the drainage facilities necc - .,pry to accommodate the control of flows discharging from the sites are constructed and in operatiort.: ,rtr public rule? Yes —)L No N/A 2. Model home permits have been requested for lot number(s) Are erosion controls and connecting driveways acceptable? Yes No X NIA 3. Do you recommend the recording of the subdivision or PUD and is5t tance of building permits? If you've marked No, give reason(s) in cornments section below. Yes --X—No 5 [ G NOTE 4. If there are any building lots on this plat which should have further review or engineering prior to building construction, identify those lots and describe concerns and suggested final plat note in the comments section below. 5. Minimum Performance Financial Guarantee required for recording is $ 300 � t 7, -'tD 5Cf- NM Restoration Financial Guarantee may be used if a Performance Agreement to Complete form is Z completed. 6. Minimum Landscaping Financial Guarantee amount required for recording is S 1 ILI I Dup 7. Minimum Recreation Financial Guarantee amount required for recording is $'(W SIN Eb 8. Minimum Street Trees Financial Guarantee amount required for recording is $ Z, s0 0 Comments: Ta: i ; ND 0-5190CEIDN ,1-ArIRTEb ON t5L`T1- o IQ 5z, i a 1.4D.o60. bo -So 6712,7D Inspector's signature and date: Project Manager's signature and date: Z--1 -a RETUWN TO: -PRr 610I M 0k(S _,Engineering Review Section S/FORMS/CURRBNnORMS,RegtoRec.Pre2000.! O/27/04 Original: Ptatting Yngineer Copy 1: FGMU Copy 2: Inspector L19 King County Dept. of Development and Environmental Services 900 dakesdale Avenue southwest Renton, Washington 98057-5212 (206) 296-6600 TTY (206) 296-7217 www.metrokc.gov NO APPROVAL Punchlist Inspection for Roads, Drainage & Erosion Control Facilities Land Use Inspection Section Date: March 11, 2008 Original Punchlist Date: June 84, 2007 No Approval No.: 1 Name of Development: Wilkens Wood Address of Development: 16613 —113x" Ave. SE Project No.:L99P3010 Activity No.:L07SI237 On the date indicated, an inspection was conducted and it was determined that the items listed remain to be corrected. This punchlist is valid for 30 -day. Changes will not be made within the 30 -day limit without the express review and approval of the Project Manager/Senior Engineer, Land Use Inspection Section. Any extensions to the 30 -day limit must be approved by th& nspector. 106 Install trash rack on inlet pipe of control structure. 128 Submit geotech report for installation" of pond liner. 130 Provide `verification of RID facility 207 Stripe roadway 211 Relocate power pole at sw corner of intersection of 113" and SE 167" Ct. 301 Clean and sweep all sidewalks and curbs. 304 & 310 Correct ponding along curbline. 401 Complete minor plan change 411 & 412 Repair extruded curb where damaged. 460 Rec Area not installed -handled under separate inspection activity. New item: Remove temporary sock in catch basins. Original: Developer A1\64.No Approval 1.03-I0-06 cc: FGMU cc: Inspector Page 2 No Approval No. 1 Wilkens Wood It is agreed that corrections will be made by as soon as possible and a re -inspection will be requested by the developer or his representative by calling: APPLICANT, Mike Meins 03/11/2008 206.296.6678 Centurion Development Services Attn.: Mike Romano Inspector (print) date Phone No. Name 22617— 8th Drive SE Inspector Signature Address Bothell, WA 98201 Sr. Engineer Initials Date Address Original: Developer cc: FGMU cc: Inspector A\\64. No Approval 1.03-10-06 NE King County Department of Development and Environmental Services Land Use Services Division 900 Dakesdale Avenue Southwest Renton, Washington 98055-1219 FAX COVER SHEET TO: Mike Romano FAX No.: 425.486.3273 Phone: Total number of pages: 3 Date: 3/13/2008 Time: 10:10am From: Mike Meins, Engineer II Phone: 206.296.6678 Fax: 206.296.7174 e-mail: mike.meins(i�kingcountX.gov Project Number: L99P3010 Wilkens Wood COMMENTS: Draft copy of No Approval No. i TRANSMISSION VERIFICATION REPORT TIME 0311312008 09:08 NAME KING COUNTY LUIS FAX 2062967174 TEL 2062966642 SER.# 000L6J313911 DATE,TIME 03113 09:07 FAX NO -/NAME 94254863273 DURATION 00:01:02 PAGE(S) 03 RESULT O MODE STANDARD ECM :ni k � I�•I � I i W ,. Y 4brr4al w�a . W!p } s v., .I , Activity ILJW3010 Statua: IRECORDED D ate 09/09/1499 Location 16613113thAve"SE APPLICANT; M.J.. HOLDINGS, INC. Ging County Buk$lap „F Related #a Development APD Remi*% 1 QtM,Amciatiorva Number:0 S#a1u�0 Urate: ® A050N457 T#e: d A060001 t Lrcati©n: ® A06CIOG5 ® A06CI165 �alae� $caeot RrmwOryr O A070N202 Aatluuq Nry NY EEO® A07CI107 [D A98M0487 5�druA1# Activities Attached to This Praiect LOUVD040 r Activity Nog Date Statax TI L0W092 A07CIi07 CERTINS [6/07/2007 VALID � L0JHE031 _ ..........-...-_........ D L03SR052 A98M0487 PREAPP41 12/031198 COMPLETE ® L0451161 LOUT J)b O S U B V A R 03137/2000 GRANTED p L04S1162 L03MI492L-MIS[ 1 211 1 12003 i MPLETE ® L05FR064 LQ3FIE031 RE4I51014 [6107/2003 COMPLETE [x3 L05SI249 L03SAD52 Lt74S1161 L0451162 LC�PR06d L05SI249 Add ActiyRies To ThProlw TooSar Ordx Tuesday, Dec 11, 2007 09:31 AM SITEREV 7 1 10 712003 COMPLETE r + w INSPECT 12/1312[7;15 PUNCHLST Status T - IN5PECT 02107/200055PENUING ( PENDINGMµ CidANGE FINAL t7t28i2005 ICOMPLETE Title PENDING WILKENSWOODA-99P301O-PCttt Primer Name:.... REAMCRAFT HOMES € R±—LO7 CM - Work Dc= titin ... Trer srlrcl Iran Piatact �a'7r1'rLV �'f Wf1v.� 0+� — L*•O!7 ��>�' +"`' hack E,ntt vv�ii- F%�.s aF tThwr-, ODEScreep 1�lmliv Pole I".lI!INlilll<111151 fat Fees D IM Aum Cord loc R� MEHI Ging County Buk$lap „F Related #a Development APD Remi*% 1 QtM,Amciatiorva Number:0 S#a1u�0 Urate: ® A050N457 T#e: d A060001 t Lrcati©n: ® A06CIOG5 ® A06CI165 �alae� $caeot RrmwOryr O A070N202 Aatluuq Nry NY EEO® A07CI107 [D A98M0487 5�druA1# Activities Attached to This Praiect LOUVD040 r Activity Nog Date Statax TI L0W092 A07CIi07 CERTINS [6/07/2007 VALID � L0JHE031 _ ..........-...-_........ D L03SR052 A98M0487 PREAPP41 12/031198 COMPLETE ® L0451161 LOUT J)b O S U B V A R 03137/2000 GRANTED p L04S1162 L03MI492L-MIS[ 1 211 1 12003 i MPLETE ® L05FR064 LQ3FIE031 RE4I51014 [6107/2003 COMPLETE [x3 L05SI249 L03SAD52 Lt74S1161 L0451162 LC�PR06d L05SI249 Add ActiyRies To ThProlw TooSar Ordx Tuesday, Dec 11, 2007 09:31 AM SITEREV 7 1 10 712003 COMPLETE r + w INSPECT 12/1312[7;15 PUNCHLST Status T - IN5PECT 02107/200055PENUING ( PENDINGMµ CidANGE FINAL t7t28i2005 ICOMPLETE Title PENDING WILKENSWOODA-99P301O-PCttt Primer Name:.... REAMCRAFT HOMES € R±—LO7 CM - Work Dc= titin ... Trer srlrcl Iran Piatact �a'7r1'rLV �'f Wf1v.� 0+� — L*•O!7 ��>�' +"`' hack E,ntt vv�ii- F%�.s aF tThwr-, Meins, Mike From: Michael Romano [michael.romano@comcast.net] Sent: Thursday, December 20, 2007 5:17 PM To: Meins, Mike Cc: JP Subject: RE: Wilken's Wood L07SI237 Thanks Mike. Is the County going to be OK with a sawcut butt joint on the east and west sides of the AC patch and at the road center line? Michael J. Romano Centurion Development Services 22617 -8th Dr. SE Bothell, WA 98021 (425) 486-2563 (425) 486-3273 (F) michael.romano@comcast.net -----Original Message ----- From: Meins, Mike [mailto:Mike.Meins@kingcounty.gov] Sent: Thursday, December 20, 2007 5:02 PM To: Michael Romano Subject: RE: Wilken's Wood L07SI237 Mike - I looked at the site today. The road and curb have a sag that needs to be regraded/replaced to prevent the ponding in that area. The cb height seems to be OK. We can recheck by flushing some water through that area and check the flow. Your contractor can do that and I can meet with him on that if you wish. Thanks, Mike Meins New e-mail address: mike.meins@kingcounty.gov -----Original Message ----- From: Michael Romano [mailto:michael.romano@comcast.net) Sent: Tuesday, December 18, 2007 9:07 AM To: Meins, Mike Subject: RE: Wilken's Wood L07SI237 OK. Thanks Mike. Does it look to you like it's just a sag in the curb line that can be graded out or is that CB too high? Michael J. Romano Centurion Development Services 22617 -8th Dr. SE Bothell, WA 98021 (425) 486-2563 (425) 486-3273 (F) michael.romano@comcast.net -----Original Message ----- From: Meins, Mike [mailto:Mike.Meins@kingcounty.gov] Sent: Monday, December 17, 2007 4:23 PM To: Michael Romano Subject: Wilken's Wood L07SI237 <<IMGP0520.JPG-�7 <<IMGP0521.JPG7> Mike - Two items on Wilken's Wood: 1) I met with Bob Eddy at the site about the power pole location. He is looking into it and I think has a solution. He should be getting back to me soon. 2) The attached pictures show a ponding spot by the entrance to the plat. The contractor 1 N told me they did a repair in the area to fix it, but obviously it is not. This is on the punch list already. Thanks, Mike a King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 206-296-6600 TTY 206-296-7217 www.nnetrokc.gav June 15, 2007 Centurion Development Services Attn: Mike Romano 22617 — 8`h Drive Southeast Bothell, Washington 98201 RE: Project Name: WILKINS WOOD Project No.: L991`3010 Activity No.: /L04SI161) L Dear Mr. Romano: 1,�-►1�ts-z,,­7 An inspection of this development was made by the Land Use Inspection Section. Based on that inspection, the enclosed punch list of construction deficiencies was prepared. Within fifteen (15) working days of the date of this letter, please contact the inspector (name and phone number at the bottom of the page) with the schedule for completing these items and indicating when work will begin. When all items are completed, please call for a follow- up inspection. If you have any questions or problems that the inspector cannot resolve, please call me at 206 296-7234 or write to the Land Use Inspection Section at the address above. Sincerely Jeff Pray, Senior Engineer Land Use Inspection Section Enclosures: LUIS Performance Punch List cc: Tim Cheatum , Engineer Inspector's Phone No.: 296-7232 Financial Guarantees Management Unit Department of Transportation, Road Services Division f x12,_ 251" � 7J`v CONSTRUCTION INSPECTION PUNCH LIST for Roads, Drainage, and Erosion Control Facilities Punch List Date: June S. 2007 Project Name: Wilkens Wood Project No.: L99P3010 Activity No.: L04SI161 Activity Type: INSPCT-P Location: 16613 1131" Ave SE The Land Use Services Division has a computer tracking system that uses project and activity numbers. Please refer to both the project and the activity numbers when inquiring about this project. 2 This official punch list is valid for 30 days. Changes will not be made within the 30 -day limit without the expressed review and approval of the Senior Engineer, Land Use Inspection Section. Any extensions to the 30 -day limit must be approved by the inspector. Deviations from this policy should be reported to the Senior Engineer at (206) 296-7236. 3 Computer generated punch lists may appear to be missing punch list items because they are not numbered 1, 2, 3, 4. 5, 6, ...etc. This is not a mistake, but due to the way the computer stores the standard conditions listing. 100 STORNI DRAINAGE SYSTEM: 19} Flush all storm drainage lines and clean out all catch basin/manhole sumps, including any retention/detention systems. 03 Attach ladder in CR 1, L 04 Remove sediment build-up from the retention/detention system. _____I06 Install a trash rack on the inlet of pipe of the control structure �1�' Pump out the water in the Control Structure so that underground inspection can be performed, coordinate with the inspector _1 9�JThe clean-out gate on the control structure does not close correctly, repair or replace as needed. 1 2E Add locking bolts to all catch basins, exception to this are rolled curb grates. 13 Grout cracking all around interior of CR 15. Remove cracked grouting and replace. ,_,l'14 Clean ditch following trail system from project to the north. Re -vegetate with low growth grass seed mix. kA -1` Re -grade ditch so that it matches slope of approved plans. Page 1 of 7 Print Date: 06/08/2007 CONSTRUCTION INSPEUVION PUNCH LIST for Roads, Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June 8, 2007 '6 Remove debris place in ditch across street fi-om 16463 113`' Ave SE 117 Remove debris from ditch on west side of 113`h Ave SE, Re -vegetate with appropriate bio-swale seed mix. 1-1-,H-8 Clean sediment deposition from R/D pond .—I`C9 Cut south inflow pipe (outfall, CB 1) 45 degree angle. LJ,20" Install drainage retention/detention facility sign, 1 Verify the pipe inverts entering and exiting the detention pond are constructed per the approved plan.. ,122~ Grout on ecology block wall in pond cracking off. Clear wall of cracked grout and re - grout. Complete grouting of ecology blocks. All seams and joints are to be grouted. 4 Per approved plans, use mortar to reach elevation of 464.00 on the W.S. Water Quality elevation._ 2'k';_-- " c_.. �,f. � �`S- v� �� 2 Clean grout off ladder in Control Structure. 16# 126-4 all trash rack on inflow to Control Structure. VI-, Per WSDOT standards for Type 1 fence, the maximum clearance under fence is 2", adjust accordingly. (Copy of Standards Attached) _ ,128 Submit geotech report for the installation of pond liner. ,._�9 Backfill end ecology block so that it matches slope of pond. 130 Provide verification (per Retention / Detention Facilities "In Operation" Requirements by Public Rule) by a licensed surveyor (LS) or professional civil engineer (PF) as follows: Lt. Dimensions (LS) b. Required and actual volumes (live and dead storage) (LS) c. Elevations (LS) �� I d. Easement/tract corners surveyed and staked (LS) e. Berm embankments fully completed (PE) ] Verify the pipe inverts entering and exiting the detention pond are constructed per the approved plan .�t2,t Page 2 of 7 Print Date. 06/08/2007 CONSTRLXTION INSPECTION PLNCH LIST for Roads, Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June 8, 2007 1-J,40 Remove the following poisonous vegetation and/or noxious weeds: Tansy Ragwort: http://dnr.metroke.gov/wir/lands/weeds/ragwort.litni Purple Loosestrife: http://dnr.metrokc.gov/Nvir/lands/weeds/Istrife.htm Reference: Surface Water Design Manual Appendix A Remove all evasive plants from pond area and replant RID pond with low growth seed mix. 200 ROADWAYS AND PARKING AREAS: On NW corner of 113`h Ave SE and SE1671h Ct, Remove the asphalt and repave where t marked with orange paint. 1&(47W r:�, _,* Seal all asphalt joints. Install monuments. x(37 Seal around all monuments. 207 Stripe the road and/or intersections per the approved plans, contact Morgan Wong at the King County Department of Transportation at (206) 296-6596. 211 Newly installed power pole adjacent to curb on SW corner of 1 13th and SE 167" CT is within 10 feet of rolled curb, making it a roadside obstacle, 5�4E'r�oT- Q� 220 Side slope on south side of SE 16Th Ct do not have a 3:1 slope as shown on approved plans. Build road to approved plans, or propose change to correct problem. 300 SIDEWALK, CURB AND GUTTER: 301 Clean and sweep all sidewalks and curbs. � i13 Replace broken sidewalk and/or curb where marked with orange paint. vr�� l V11 04 Correct ponding in the curb where painted with orange paint. Q0 Fill behind all areas of sidewalk to provide a smooth transition. 6 Curb on north side ol'Tract A appears to have reverse flow, adjust grade as needed. u,a 7 Grind out grout that was spilled in curbline. itl z/2 -slog �X400 -%�CKJ ,Tl Page 3 of 7 Print Date: 06/08/2007 �77W1� 2t v6�t1A , 4 �t.1, �UF�S �1 �� K�� ve' CONSTRUCTION INSPECTION PUNCH LIST for Roads. Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June 8, 2007 308 Score large panels to meet 1993 KCRS 3,04 9 Remove plastic from truncated domes. 310 Adjust reverse slopes on curbline so that all water will drain to Catchbasins. Observed on i•G north side of SE 167"', just west of CB 1 and North side of Tract A, just north of CB8. 400 OTHER COMMENTS: 401 Outstanding Design Plan Changes must be addressed before Final Construction Approval can be issued. Plcase address the following outstanding design plan changes: L07PCO58 ,�-_ n`-? 408 Final Corrected Plan Street Names do not match the recorded plat (or proposed final plat). Correct street names on the Final Corrected Plan. �0 Re-establish 5 foot gravel trail where it transitions from asphalt to gravel 411 Fix extruded curb where marked with orange paint. ___412 Repair ends of extruded curb were broken. = Re-gravet driveway entrance at 16463 113`x' Ave SE. lea 460 Landscaping, recreational equipment and street tree inspections will be handled under a --�- separate punchlist. Please contact the inspector for details. 500 SPECIAL CONDITIONS: 502 Stabilize all .denuded areas by vegetating, seeding and mulching or better.�)�� 800 NON CONSTRUCTION RELATED REQUIREMENTS: 801 FINAL CORRECTED TECIINICAL INFORMATION REPORT AND/OR FINAL CORRECT PLANS: The Revised Code of Washington 18.43 and the Washington Administrative Code 196 require all plans, specifications, plats and reports (including any changes) be prepared, signed, dated, and stamped by a licensed engineer. 804 A FINAL CORRECTED TECHNICAL INFORMATION REPORT (TIR) REQUIRED: The applicant shall supply two (2) copies of the corrected TIR to this office. The FINAL CORRECTED TIR will reflect any drainage design plan changes. If no drainage design plan changes were approved, copies of the original TIR are acceptable. Copies of the TIR shall be marked "FINAL CORRECTED TIR". One copy will be kept by DDES and one will be forwarded to the King County Department of Natural Resources for permanent record keeping. Page 4 of 7 Print Date: 06108/2.007 CONSTRUCTION INSPECTION PUNCH L1S'I" for Roads. Drainage, and Erosion Control Facilities for 1'rojcct Number: Punch List Date: June 8, 2007 806 A TWO YEAR MAINTENANCE AND DEFECT financial guarantee warranting the successful operation and maintenance of RIGHT-OF-WAY improvements and/or DRAINAGE FACILITIES, and guaranteeing the workmanship, materials and design used in the construction of the improvements and/or facilities is required. Please contact the Financial Guarantee Management Unit (FGMU), at (206) 296-6659, to obtain the proper forms. DO NOT SUBMIT THIS FINANCIAL GUARANTEE UNTIL ALL OTHER CONSTRUCTION PUNCHLIST ITEMS HAVE BEEN ADDRESSED. THE TWO YEAR MAINTENANCE AND DEFECT PERIOD SHALL NOT BEGIN UNTIL FINAL CONSTRUCTION APPROVAL OR RECORDING, WHICH EVER IS LAST. The amount of this guarantee, (25% of the total costs (including a 30% contingency and mobilization factor) for existing right-of-way and future public road improvements and drainage facilities as shown on the financial guarantee worksheet) is: S 53,041 812 DRAINAGE FACILITY LIABILI`T'Y POLICY (KCC 9.04, 100) Any person required to construct a drainage facility (except downspout roof drain infiltration systems) shall maintain a liability policy in the amount of S 1,000,000 which shall name King County as an additional insured. This policy shall remain in effect until construction approval or acceptance for maintenance, w=hichever is last. THF POLICY FOR THIS PROJECT MUST NOT EXPIRE BEFORE THE FINANCIAL GUARANTEF,S ARE RELEASED. THE POLICY MUST BE EXTENDED TO CONFORM TO T'HE KING COUNTY CODE, DESCRIBED ABOVE. 814 INSPECTION FEES: After all other punch list items have been approved by the inspector, a Summary of Charges and Payments will be provided to you. Final Construction Approval can not be granted until the indicated fees are paid. NOTE: The Summary of Charges and Payments is not a final fee determination, additional charges may appear after Final Construction Approval. All outstanding invoices must be paid before any Financial Guarantees can he released. In order to avoid delays in processing, please notify the inspector when fee payment has been made. _ ..__.. 840 Provide a certification, by a professional land surveyor, that the survey monuments have been set as shown on the final plat documents. This requirement is for PUBLIC roads only. Page 5 of 7 Print Date: 06/08/2007 CONSTRUCTION INSPECTION PUNCH LIST for Roads, Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June S, 2007 990 FINAL CORRECTED PLANS: FOR ALL PUBLIC IMPROVEMENTS Submit a complete set of archival duality mylars. Mylars shall be photo mylar or ink-on- mylar, minimum 4 mil thickness. In addition, one (1) blue -line copy of the complete construction plan set is required. All plans must reflect all Minor and Design Plan Changes. The blue -lines must have all Minor and Design Plan Changes highlighted in green. The mylars will not be returned. If the consultant engineer desires copies for his/her records, copies must be made before submittal. Mylars and blue -line drawings shall not have shading or adhesive additions in any areas. 996 FINAL CORRECTED PLANS, REPLACEMENT MYLARS: When the originally approved mylar is not submitted as the FINAL, CORRECTED PLAN, additional review of the replacement mylar will be required. The Plan or '`P" number from the original mylar shall be shorn on the replacement mylar. 1000 Inspector: Ti heat m �f Phone: (206) 296- 7232 Signature: Page 6 of 7 Print Date: 06/08/2007 CONSTRUCTION INSPECTION PUNCH LIST for Roads. Drainage, and Erosion Control Facilities for Project Number: Punch List Date: June 8, 2007 End akr w mmr Ie1+ LIF, P"r' p911 Pr.T F�rla �ni� .au Rrw. RF r9l I v.11n II7r +Izrir �� n� Fall � Y..r 111 ..tom Yl ra Tl.twl n,. Sebr1 Y.I Ate. LIM v.a Pr KEW. " w r!I`r.IF pr1rF CHAIN L)N6 FENCE TYPE I eros colt y i T.IS lirl M L sa. kv.e w . Olata a A.rrw qaf 11'� � .� PW I iaWYlyd ]llwpA 7r�lm .Ir '� tlreln IIH idrl _ Mire a.g+ r°I BtrslR�r roll r.Y�i�n.r ernol. Fal CHMN LENK FENCE TTFE 4 role, W. w eenlr PFT LI AI Peat R.Q Iww PVI I pert ln.grlwl rlTop Tr} Hr. � � Cbin Iln1 futr la rmrre T.r 111 T..r.n •Ir. mti CHAIN LINK FEYCE ITPE 6 IHr- [! I r T � A.rerur .A.rle la.. Fr Lim .nn �— r RAIL ANO ENO. GMNER aa0 RLL PORT IRACE L)Yr PVEr RILL FDINEC SELTIED8 w.l BFaIY poet T.11.i.a ma brad —I r.l 1 A ..v. I.— 1w In IrRI imrra Tan W.11 ro.. 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P• IO ohni Ih[MI Ormh.I IPo'IR]rl 11rW�l iF..r.Al flMn .r.uWl I1ni.s1 /rondtl IYIaM1 l.a-r-WAran Ilr7ml 2�.'hI l[IdYI} YN.nil I[NptYY} irorril c -e- rl.At lenol�l [Penal 1 Ilk 0-n LK N t7i I -A % . LN I.M ■ - dA .% . Lp r. 2* .-r. IIA .2% 2y[ P.I 4._0. ] LA LIT IAA Y i% i.R % x US 3.11 36 2.71 LN 2.72 L% a is I.Ia a P.K W.. MA 4. L4 AK 156 2.C1 ,A . k% Mf 9L . LY. 1.25 LK x -n M 2.72 % . LK I.- I ].a 256 . ILL I.L1 TVi l.L Y 116 I'F . 1K 1 I.]a % Y IA L,21 I VA 6.0 % . LH ..W M ].n Wi . M I. IK Page 7 of 7 Print Date: 06/08/2007 CHdIN LINK FENCE — r .t r .A.t. Web date: 0910912005 CERTIFICATION & TRANSFER OF APPLICANT STATUS King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 For alternate formats, call 206-296-6600. 206-296-6600 TTY 206-296-7217 Permit Number: FOR CURRENT OWNER: I, , (print name) hereby certify that I am an/the owner of the property which is the subject of this application for permit or approval. If I am not the sole owner of the property, I certify that I am authorized by any and all other owners of the property to make this certification and transfer any an all rights I/we have to apply for this permit or approval to the person listed below. I, therefore certify that (print name) is the "applicant" for this permit or approval and shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. By being the "applicant," that individual assumes financial responsibility for all fees and will receive any refunds paid. I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct Signature of Owner Date Signed FOR INDIVIDUALS: I, , (print name) hereby certify that I am the "applicant" for this permit or approval. I shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. I accept financial responsibility for all fees associated with this permit or approval and will receive any refunds. My mailing address is: certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. Signature of Applicant OR FOR CORPORATIONSIBUSINESS ASSOCIATIONS: I, Date Signed , (print name) hereby certify that I am an authorized agent of , a corporation or other business association authorized in the State of Washington and that this business association is the "applicant" for this permit or approval and is financially- responsible for all fees and will receive any refunds paid. This association shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. The mailing address of this business association is: I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. Signature of Applicant CertAndTransferAppiicantStatusFORM.doc 1c-cer-trapstat.pdf 09109/2005 Date Signed Page 1 of 2 NOTICE TO APPLICANTS: By law, this department returns all engineering and other plans to the applicant. If, however, you wish to authorize the department to return engineering and other plans directly to the engineer, architect, or other consultant for the limited purpose of making corrections, please designate below: ❑ I authorize this department to return plans directly to my consultant(s) for the limited purpose of making corrections, as designated on this form. CONSULTANTS: Check out the DDES Web site at www.metrokc.aov/ddes CerLAndTransferApplicantStatusFORM.doc lc-cer-trapstat.pdf 09109/2005 Page 2 of 2 SOC � Page 1 of 1 Cheatum, Tim From: Sanders, Jim Sent: Thursday, March 22, 2007 9:49 PM To: Cheatum, Tim Cc: Dye, Pete; Townsend, Steve Subject: FW: Wilkins Wood L04SI161 (private/public road intersection) Tim: The plan provided is consistent with a long standing practice for PAT and private road tract connections to County roads. While there is no standard detail for driveway drops on rolled curb, this example closely follows the vertical curb drop and will also be ADA compliant. No variance is required. As a practice, the driveway drop works because private access tracts are clearly delineated from public roads and the 'drop' better serves multiple residents than the rolled curb bump. Note that designs still include all other aspects of an intersection design (e.g. alignment, property line radii and sight distance requirements). If you need anymore specifics on design applications, please see Pete or myself. From: Cheatum, Tim Sent: Thu 3/22/2007 2:22 PM To: Sanders, Jim Subject: Wilkins Wood L04SI161 Jim, Attached is a portion of sheet 6 of the Wilkins Wood project. It shows "Rolled Curb Tract Entrance" . I can find no detail in the 1993 KCRS or in WSDOT which details this design. I talked with Ted Cooper and he stated that you wanted a defined line between ROW and private property access. Since they installed it per the approved plans do I allow it, make them get a variance, or have them replace it with full height rolled curb and sidewalk? <<ROLLEDCURBDRIVEDROP.pdf>> Tim Cheatum Engineer II 206-296-7232 (Office) 206-296-7174 (Fax) 03/26/2007 Apr 02 07 09 33a DMP, Inc. a dmp, inc. April 1, 2007 Memo To: King County Inspection Dept. (206)295-7174 Tim Cheatum, Inspector From: Mel L. Daley, P.E. Re: Wilkinswood Detention Facilities 253-333-2200 a DALEY-MORROW-POBLETE,INC. ENGINEERING -PLANNING -SURVEYING 726 Auburn Way Nath Auburn, WA 9WO2 (253)333-220D FAX j253r333-2206 This letter is for the purpose of providing verification of the Volume of the Detention Pond and Wetpond for the subject project. The following provides a summary of the various sizes: Detention Pond Volume Required per Analysis: 8,604 cf Detention Pond Volume Provided Per Design: 10,383 of Detention Pond Volume Provided Per As -Built 8,928 cf Wetpond Volume Required per Analysis: 5,538 cf Wctpond Volume Provided Per Design: 5,819 cf Wetpond Volume Provided Per As -Built: 6,512 of Based on this information it is apparent that the As Built facilities volumes are in excess of the required volumes. As -built of the Control Structures and Orifices indicate that they are in conformance with the design plans. The Detention facilities are functional as intended and appear to operate properly. if you have any further questions, please feel free to contact me at (253)333-2200, Sincerely' f�" 13258 �':n.� J i UAffy -9,2028 (i) King County De artment of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 Project No.: L99P3010 Activity No.: L04SI161 Date: 30 Dec 2005 Project Name: Wilkins Wood TELEPHONE NAME ADDRESS NO. [ ] Developer: (or designated representative) * 24 -hr. Emergency Contaciy& Tel N [ ] Contractor: [ ] License 4: [ ] Subcontractor: [ ] License #: [ ] Engineer: [ ] Inspector: Tim Cheatum 900 Oakesdale Ave SW Renton, WA 98055 [ ] TESC Supervisor: [ ] Other: 206-296-7232 AGENDA FOR MEETING - Check as items are discussed or marked NIA 1. Items Required at the Preconstruction Conference [ ] Applicant transfer form designating contractor to act as the applicant (or owner present) Lr Issued permit and approved construction plans (incl uytin P , [ HPA or Fisheries contact; HAA required _Yes _NoDeveloper Representative Initials. [ ] Forest Practice Permit required for > 5,000 board feet of marketable timber, provide copy to inspector. [ ] Approved sanitary and water utility plans copy to inspector received? _Yes _No 1y [ ] Copy of Certificate of Liability Insurance naming King County as additional insured, required for any drainage facility work. [. Easement(s) for off-site work; provide copy to inspector. [� Contractor's Material Safety Data Sheets (MSDS) location on-site or provided to King County (WAC 296-62-05409). Pre -Issuance Construction Authorization (PICA) letter, signed by King County and Developer 2. Items Required at the Job Site While Under Construction [Approved plans [ ssued permit (commercials) [ Right -of -Way Use permit S:Cirrenttorm\Preconst.wd.12.28.01 Page 1 of 7 t f 4 f [f Notice of Construction Activity sign (KCC 20.20.060) must be posted prior to any construction. (Required for all formal subdivisions; and any grading and/or building permit subject to SEPA.) See Notice of Construction Activity flyer. 3, Other Requirements All,+construction details/procedures are not shown on the approved plans, but can be found in the following standards. [ Application Date [ King County Road Standards (K RS} /1993; _1987; _1979; 1969; (check applicable standard) WSDOT/APWA standard specifications and plans; manual on Uniform Traffic Control Devices (MUTCD), Construction Traffic Control. [ .Surface Water Design Manual ✓ 1998; 1990; _1979; (check applicable standard) 4. You Are Required to Notify the Inspector at the Following Stages of Construction (KCRS Chapter 9 [J One working day prior to site work start-up. [✓J -One working day prior to starting any underground utility work. (see Item 8). [ One working day prior to placing curbs, gutters, and sidewalks; passing density tests and "proof rolling" are required. 4Density tests must be approved prior to proof rolling. (see Item 8). One working day prior to placing crushed rock. The developer/contractor shall first provide passing density and "proof rolling" test of the native subgrade to verify the subgrade is visibly firm, compact, and suitable for surfacing. [ . Three working days prior to paving roadway. rFi 1R Three working days prior to start of work on cast -in-place concrete structures, 5. Erosion/Sedimentation Controls(ESC Clearing limits shall be accurately flagged in the field as shown on the plan, prior to clearing. Native Growth Protection Easements shall be flagged or fenced as shown on plan. Erosion and sediment controls shall be installed as the first step of construction. [if Field conditions may require that erosion and sedimentation measures indicated on the plans be modified or supplemented. [] he developer is responsible for the adequacy of all erosion and sediment controls throughout the life of the project. [ Control mud onto existing streets. 1) Install rock pad or truck wash at construction entrances; 2) Wash truck tires if necessary; 3) Keep adjoining roads clean. Don't wash mud and silt into drainage systems. [ All denuded areas must be mulched and seeded or otherwise stabilized to prevent sediment -laden water from leaving the site or entering the storm drainage systems, [ Provide an area on-site for cleaning concrete trucks. Effluent from concrete operations shall not be allowed to enter the storm drainage systems. [. Projects that fall under the 1990 or 1998 drainaga-manual require covering within 12 hours from October 1 through lwerch [�1 TESC Supervisor required per SWM Manual D.5.4 on all sites_ [ :Highly Sensitive Site (SWM Manual D.5.4.) TESC Supervisor (several years of construction supervision or inspection and background in geology, soil science, or agronomy). Required for this site? Yes , No If yes, Name &Phone No. [/TESC Su ervisor Sign, (name and phone number) required at all primary site entrances. (Can be included on onstruc ontr Notice sign.) [ ecommend obtaining approval for non-standard water quality proposals well in advance of the need. Utilities and Storm Drainage {A11 utility construction on KC Right -of -Way requires a construction permit issued by Property Services (KCC 14.44). { ///IIIA �,Copies of approved plans and utility certificate must be provided before utility construction begin& { Are there any underground crossings on existing County road? (See open cut policy and KC Road Standards,Section 8.03). Open cuts are not generally authorized. Parallel cuts in roadway require full width overlay. I [V Location conflicts. Notify inspector prior to any relocation. [Jr/Pipe specifications, bands, gaskets, bedding (WSDOT/APWA) Standard Specifications). [ CPEP (N-12, Hi -Q) pipe requires extra care; store on flat surface to avoid deformation. Recommend locating CBs with at least two survey points to avoid misalignment with curb and gutter. S:Currentform\Preconst_wd.12.28.04 Page 2 of 7 / Compaction Method • Mechanical • Water settling •Regardless of method used, density standards must be met and documented (see Item 8). [ Finish work on drainage structures • Adjustment sections minimum of one, maximum 16 inches. 4 Grout • Ladders - extend to within 16 inches from bottom of each catch basin and securely fastened to CB. • Frames, covers, and grates - OUTFALL TO STREAM - DUMP NO POLLUTANTS, PROPERTY OF KING COUNTY, STORM OR DRAIN ("Property of King County" not required for private systems). r Locking covers and grates required outside of traveled roadway. 1993 KCRS projects: all storm drain covers and f grates shall be locking (except roiled grates in rolled curb). [/l � of stubouts installed and staked prior to signoff, 2 x 4 painted white and marked "Storm" or "Drain." +All utilities including vaults, distribution lines, and poles located within road section must be installed prior to final [/Jconstruction approval. Utility poles and other obstacles must be located per King County standards, generally no closer than 10 feet from edge of traveled way. [ Call ONE -CALL (1-800-424-5555) and locate all existing utilities prior to starting any work. [ A All road closures must be approved by the King County Department of Transportation, Traffic, in advance. Rete0on/Detention Facilities [ .Property corners on casements and tracts must be permanently staked, and facilities must be built within the easement/tract /as shown on the plans. [,,I/Pond and berm slopes shall be 3: i or flatter, unless otherwise approved. ['] RID facilities shall be constructed and operational prior to any building construction; curbing, paving, or recording of subdivision/PUDs (KCC 9.04.090). Documentation required per Public Rule. Discuss Public Rule requirements. Control. Structures: [ Access road to control structure, pond bottom, vaults, or tanks • Width and surfacing, 12 -foot -wide crushed surfacing (15 feet on curves) • Bollards or fence gates [� Restrictor "T" section riser and gate control assembly Recommend inspection of "T" section prior to installation • Gate and outlet pipe must be watertight • Materials must be similar • Min. 2 -foot clearance from ladder and any obstruction • Riser straps and gate chain/rod required * Must be able to open gate from the riser [/Ladders must extend to within 16 inches of bottom of each basin and be securely fastened to the CB wall. [ Cavers on restrictor and access manholes must be solid, round, locking lids marked STORM or DRAIN. Locking covers shall be required on all facilities located outside the curb, ditch line, or normal driving surface. 1993 KCRS projects: all storm drain covers and grates shall be locking. 8_ Roadway Certification Requirements: The following guidelines will be used by the Department of Development and Environmental Services for minimum test and sample frequency. Additional tests may be required as the inspector deems necessary, Density Tests: WSDOT Sec. 2-03.3(14)D, KCRS 9.04, 3.03 • 90% or 95%, moisture content < 3% above optimum S: Current form\Preconst.wd.12.28.04 Page 3 of 7 • t [ A Compaction control tests + WSDOT method No. 609 (AASHTO T-99/Standard Proctor). For >25% retained on the #4 sieve, use Standard Proctor with Rock Correction Factor. • PE review and approval [ --�Trenchcs: See Utility Trench Compaction Rule, November 1983, and KC Road Standards Section 8.03. Sanitary, storm, water, gas, and power, etc., in the roadway prism: • Minimum one test every trench, and one test every 500 feet of trench length • Test up to 50% trench depth (top 4 feet -95%; below 4 feet -90%) • In-place densities and moisture content shall be determined by the nuclear gauge or Washington densometer method • Test as trench is backfilled J • Controlled density fill may be used above bedding Cut section: WSDOT See. 2-06 • Minimum one test every 500 feet (100 feet, 1993 KCRS) on roadway subgrade, under curb, gutter, and sidewalk. Top 6 inches minimum density 95%, Curb, gutter, and sidewalk 90% • (pre 1993 KCRS projects only): Firm and compacted under sidewalks (WSDOT See. 8-14) [v� Embankment and fill sections: WSDOT Sec. 2-03.3(14)C • Minimum one test every 500 lineal feet on each foot of fill (1,000 cyds., 1993 KCRS) • A minimum of one test per lift • Compaction method B shall be used unless otherwise specified • 95% top 2 feet 90% below 2 feet • Curbs, gutters, and sidewalks minimum density 90% (1993 KCRS) Pogr Subgrade: KCRS 4.02 [,I Standard material thickness are not acceptable if native subgrade is unstable as shown during the proof roll test. Remedial measures will be subject to review and approval by King County prior to installation G Asphalt Treated Base (ATB) KCRS 4.04 may be used over isolated areas of unstable Subgrade. Six month delay with traffic loading required prior to final left. [•.oil Amendments, Cement Treated Base (CTB) , Cement Kiln Dust (CKD), etc. require King County review and approval prior to use. Concrete Tests: WSDOT Sec. 6-02 ] Developer/contractor must notify inspector for conference prior to beginning work { I ] Mix to conform to standards and must be verified on delivery tickets. State mix design (6-02.3(2)C) must be used unless d by King County. Standard mix does not include fly ash [�aCCTrobsvrnust conform to Drawing No. 9. Back must be 12" high and 6" in front. Sidewalks are 4" behind vertical curb, xcept at driveways where the thickness shall be 5". Sidewalks shall be 5" behind rolled curb [ • Joints in curb and gutter shall conform to Drawing No. 8 [ +Wheelchair ramps shall conform to WSDOT standards [lump tests: Max. 3" vibrated concrete, 7" nonvibrated concrete [Cylinder tests, 7 days, 28 -day strength, normally 3,000 psi C trete structures certification: Bridges, retaining walls, and retention vaults must be designed by a professional structural engineer and may require special inspections per the Uniform Building Code (see 1701, 1994 UBC). Special inspections required on this job Yes No 9. Surfacing and General Requirements: Review Standards Not Shown on Plans [ Asphalt paving -- laydown methods/equipment: WSDOT Sec. 5-04, pavers self-contained, power -propelled units. Truck- mounted pavers shall only be used for paving of irregularly-shaped or minor areas, or (KCRS 4.04): 1. Pavement widths < 8 feet 2. Pavement lengths < 150 feet [ .11 lv ailbox locations, conflicts with pedestrian/handicapped access [ Mailbox stands, NDCBUs installed before Final Construction Approval (KCRS 5.04) [, Finish work on cut -and -fill slopes: Sec. 8.05 $:Currentform\Preconst.wd.12.28.64 Page 4 of 7 [ A- Safety and Traffic hazards (KCRS 9.05) • Traffic control: required for all work in the right-of-way of the traveling public, must comply with the MUTCD • Utility poles or other natural or manmade obstacles higher than 6" • Walls require end design protection [_l�• Flaggers must have state flagging cards ] Roadside culverts, beveled ends [ r)/Quarry Spalls: 8 inches minus WSDOT Sec. 9-13.6 [, Barricades --construction: orange and white, stripes sloped downward 45 degree in the direction traffic is to pass • Temporary closures: Type III • Street termination permanent: red and white stripes and end -of -road marker Plan Change Procedure [ :Any changes to the originally approved plan will require a Plan Change and must be reviewed by the inspector prior to construction and approval. Design Plan Changes also require submittal and approval by the King County Department of Development and Environmental Services, Land Use Services and/or Building Services Divisions. • 2003 Fee ordinance fees are: (Please note, fees are subject to change yearly) • Land Use Services review fees: $654.28 each submittal and $144.90 per hour (deposit required) • Building Services review fees: $ 1,654.28 each submittal and $144.90 per hour (deposit required) Ins ectio Fees/Additional Financial Guarantees [rrent hourly fee is $ 144.90. [ - All inspection charges for this permit will be hourly. [ Each reinspection (performing the same inspection again on a different day) will be charged a $460 reinspection fee ($212,75 residential single family). [; Supplemental Inspections (inspections after punch list indicates all fieldwork is complete; required if Final Construction Approval is not granted within 30 days of punch list) will be charged a minimum of 1.5 hours (at the current rate). Financial Guarantees [ Public improvements require a maintenance and defect financial guarantee that will guarantee improvements and maintenance for two years. These financial guarantees will be required before Final Construction Approval. Pre ?000 subdivision/short subdivisions Plats/short plats without drainage facilities may be recorded before Final Construction Approval after posting a performance financial guarantee and approval by the inspector. Drainage facilities on plats/short plats must be constructed and in operation prior to recording. (See R/D public rule and KCC 9.04.090) Year 2000 and later subdivisions and short subdivision require minimum improvements be constructed prior to recording (KCC 19A.130) [ ] Commercial permits require a performance Financial Guarantee for site work if temporary occupancy is requested before Final Construction Approval_ 10. Code Compliance (KCC Title 23? [.1�onstruction Deficiency Forms [ YNotice of Violation: hourly fee ($460 reinspection fee may apply) [[� top Work: $500 initial penalty, hourly fee Notice and Order: hourly fee [ • Civil penalties: Additional $100 to $500 for each: public health risk, environmental damage, history, economic benefit [ Citations: $100 penalty 11. Bond Financial Guarantee) Forfeiture [4storation financial guarantee S;Currentform\Preconst.wd.12.28.04 Page 5 of 7 • s • Can be used at any time after notice by King County [�,/) Uformance financial guarantees • All improvements must be approved within two years from recording/six months after occupancy [Maintenanceidefect financial guarantees • Two-year warrantee period • Repairs must be completed within 30 days • Inspections/release by DNRIDOT 12. Expiration of Approval [-I/"All projects have an expiration date after which the plan approval/issuance is null and void. The expiration date for this project is Plats and short plats that are recorded do not expire, but must be completed with in 2 years from recording. [ ] If the project cannot be completed before the expiration date, you must apply for an extension. Plats • Preliminary plat extensions are not authorized. Short Plats • Preliminary short plat extensions are approved by Land Use Services Division; contact the Engineering Review Section, Platting Unit. Right -of -Way Use Permits • Right -of -Way Use Permits extensions are approved by Land Use Inspection, contact the inspector. Building Permits • Contact the Building Services Division, Inspections Section. Temnorary Certificate Of Occuvancv (TCO • Land Use Inspection approval required: Drainage facilities - Parking - Access Performance Financial Guarantee 13_ Final Inspection Process [ Initiated by developer at the time project is completed or request for occupancy certificate Allow 30 days to inspect and to prepare punchlist [ j Punchlists are good for 30 days and may be subject to revision upon reinspection after 30 days. Otherwise, no changes shall be made to the punchlist unless directed by the inspection Senior Engineer. Inspection and punchlist timelines are subject to staffing level and weather limitations. [ Request reinspection after all punchlist items have been addressed. S:Qlrrentform1Preconst.wd_12.28.04 Page 6 of 7 • 4 14. Specific Nates from Plans 15. Signature As the Owner or Designated Representative (applicant form required), I understand the requirements of King County Land Use Inspection Section procedures and agree to abide by the conditions of the permit and the procedures discussed. 1' Signature S: Current fcrm\Pzeconst.wd_12.28.0a fe) Title Page 7 of 7 jAN-93-E005 08:13 FROM: 0 TO; +253 954 528$ It P.E!-13 web d.2mm amilf20d3 CERTIFICATION OF APPLICANT STATUS King ('aunty peparbnorit of Dgvalopnlotit and 6nwrirenrrle11t2l SBIYICee SOA 0-6-adale Avenue Southwell Renton. wasningwn 98M -1 For aitemate formats. call 206-296-6600. 2M208-6600 TTY 206-296-7217 Permit Number: / Qtird Acvity Plumber: I-Je ^t1 %41 Permit Name: w, %p+�L FOR INDIVIDUALS: I. (print name). hereby certify that I am thel,sn owner of the pr6perty vrhlch is the subject of this pe;rmlt. If I am not the sole owner of the property, certify that t am 9uthortzed in represent 811 other owners of the property. My mailing address Is: I further certify that I am the "Applicant" far this permit and as such ars( Finan ' t# res i le for all felts a d will racaiva ds paid. I shall remain the "Appllc2r+t" for the duration of this permtt unless I trangftr rrjy Ong form provided by ODES. Signature of Applicant Date Signed -OR- OR cogpogA- rlgN&JaU3lNE33 ASSOCLALTIONS. h( b a rV1 (print name). hereby certify that l am an authorized agent of PAC -T atm E5 a corporation or other business aasooistian authorized to do businest in the Stare of Washington, which is the, sole owner of the property that is the subject of this permit It this coWation or business association is not the sole owner of the property, I certify that this r. orporation/business associiation is authorized to represent all other rywrters of the property. The mailing address of this corporation/business assoclation is: LAJ Ar!I 3 00 1 I further certify that the above named corporation/business association is the `Applicant" for this permit and as such is ftnan isl onsiible r all fees and will receivq -4ny refunds Paid This corporatlon/business association shall remain the *'Applicant' for the duration of this permit un lose it transfer a2rulie2nt status, i12 arse a form provided by DD1=S. C A. 0 :101 J'JU 011 - PIZ, ,gn urs of Applicants Agan ate Signed By signing as the Apprlcant or the Apoicane3 Agent, I certify under ponelty of perjury under the laws of the State of Washington that the information provided above is true and correct. CMtAppI; WLS[6tUtF06M-00C Irrcer•3w16LOW 09AW2e03 rage t arz 68q -d £a0/200'd 099-1 8025 -V48 -69Z+ 00 AYSMY310-fI011d viva 8o 9on-6o-or SM -03-2006 06:13 FROM: TOI+e= W4 Sam P-3/3 NOTICE TO APPLICANTS: By law, this department returns all engineering and other plans to the applicant. If, however, you wish to authorize the department to return engineering and other plans directly to the engineer, architect, or other consultant for the limited-purppse of makincLtorracti_gLM please designate below. ❑ 1 authorize this department to return plans directly to my consuttant(s) for the limited purpose of making corrections as designated on this form. CONSULTANTS' Check our the DDES Web sift at gow-w mefroko.movlddes Ctr{ V"M514KAFORMADC AC-M-2DBML mr OSADW20M Pogo z *f2 W -i MAN d 098-1 6025 -V59 -f92+ SUFI 1irf]iUNO-440di Yigl9,.90 80ome-wr January 3, 2006 Attention: King County DDES From: DreamCraft Homes Michael Feuerbo n 253-859-9697 Re: Wilkens Wood CERTIFICATE OF APPLICATION STATUS FORM 6811-1 600/100 d 099-1 6025-V90492+ SAW 1dVa7W M->rud HVIS-80 9002-f0-wr King County Dept, of Development and Fnvironmental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 ACTUAL INFILTRATION RATE TESTING The following test methodology will be used to determine actual infiltration rates of constructed drainage facilities (including any sand and/or geotechnical fabric layers) as required by King County Code 9.04.0900 and the related Retention/Detention Facilities: "In Operation" Requirements Public Rule. If the actual rate is not equal to or greater than the design infiltration rate as depicted in the Technical Information Report (TIR), a Design Plan Change will be required to modify the infiltration facility. In certain cases, the TIR will also include a maximum infiltration rate (normally 2.4 inches/hour) to protect sole -source aquifer areas. If the sole -source aquifer rate applies and the actual rate is greater than the design rate, a Design Plan Change will be required to reduce the actual rate to less than or equal to 2.4 inches/hour. Fill the infiltration facility with enough water (using storm events or domestic water) to cause the water level in the storage portion of the facility to rise. Remove the water source and record how many minutes it takes for the water level to drop one inch. Or determine the flow of water necessary to maintain a steady state water surface level. Convert the flow rate (cfs) to an infiltration rate (in/min) or (in/hr). If this is not possible, then; 2. Fill the infiltration facility using the design storm hydrograph to determine the variable fill rate over the design storm period. Check the TIR to determine the design storm used to size the infiltration facility. If water does not back up in the system, the actual infiltration rate may be unknown, however; successful infiltration of the design storm documents that the actual infiltration rate meets design requirements. If this is not possible, then; 3. Obtain approval from the Land Use Inspection Section Supervising Engineer for a site- specific methodology. The proposal shall include but not be limited to: ❑ Test pits to determine soil type, water table location and any impervious layers ❑ Small scale infiltration tests; results calibrated to full-scale tests based on known data ❑ Ground water mounding analysis ❑ Summary geotechnical report with conclusions If you have any questions, please see me. Steven C. Townsend, PE Supervising Engineer Land Use Inspection Section Land Use Services Division STomilCutrent fortrJActual Infiltration Rate Testing. 04-23-01 Land Use Inspection Section Punchlllst Inspection King County Requirements Department of Development and Envirotunental Services Land Use Services Division Alternative formats available 900 Qakesdaie Avenue Southwest Renton, Washington 98055-1219 upon request (206) 296-6600 TTY (206) 296-7217 The following items must be addressed BEFORE a punch list inspection can be scheduled: ❑ All Special Conditions Addressed ❑ Storm system in and functioning ❑ RID and bioswales ❑ Ladders and steps installed ❑ T -Sections installed ❑ No open trenches ❑ No hazardous atmosphere ❑ No safety issues ❑ ATB surfacing of roads installed (proof roll passed) ❑ Curb gutters and sidewalks installed ❑ All plan changes approved and implemented ❑ All striping and signage installed ❑ Other The following items should also be addressed to minimize unnecessary reinspections and reinspection fees: ❑ Pipes installed true to line and grade ❑ All denuded areas vegetated or mulched ❑ Permanent barricades installed ❑ Ditch sections 3:1 ❑ Poles > 10 feet from traveled way ❑ All tracts staked and survey monuments set ❑ Clean all hard surfaces ❑ Backfill behind sidewalks ❑ RID inspection checklist complete ❑ All catchbasins grouted, storm system cleaned ❑ Wearing surfacing of roads installed 5:1 LUISICurrent Formiluis pl insp req. 2112102 0 0 Web date: 0911312065 DRAINAGE FACILITY King County LIABILITY INSURANCE Department of Development and Environmental Services REQUIREMENT 900 Oakesdale Avenue Southwest Renton, Washington 9$055-1219 206-296-6600 TTY 206-296-7217 For alternate formats, call 206-296-6600. King County Code 49.04.100 requires the applicant to post liability insurance that names King County as an additional insured to protect King County from liability. Currently, this amount must not be less than $1,000,000 for property damage, any accident, negligence, failure of the facility, or any other liability relating to the construction or maintenance of drainage facilities required by King County Code 09.04.050. To comply requires submittal/confirmation of ALL of the following documentation: An ACORD Certificate of Insurance and a copy of the Additional Insured Endorsement. King County prefers CG2026 or CG2012, however, if your insurance company does not use either of these forms, you may submit a substitute and our Risk Manager will review and either approve or deny the substitute form. 2. Under the section labeled "DESCRIPTION OF OPERATION, LOCATIONS, VEHICLES, SPECIAL ITEMS', please insert: King County, its appointed and elected officials and employees, are named as an additional insured with respect to liability relating to the construction or maintenance of the drainage facilities required by project, . This policy provides insurance in the amounts and types of coverage required in King County Code 09.04.100. 3. Under the cancellation section, please insert: Should any of the above-described policies be canceled before the expiration date thereof, the issuing company will mail 30 days written notice to the certificate holder named to the left. 4. In the box labeled, "Certificate Holder', please insert: Department of Development and Environmental Services ATTN: Financial Guarantee Management Unit 900 Oakesdale Avenue SW Renton, WA 98055-1219 Please send the ACORD Certificate of Insurance and a copy of the Additional Insured Endorsement to the address listed above under item 4. If you have any questions regarding this insurance requirement, please contact the Financial Guarantee Management Unit at 206-296-7009 or 206-296-6671. Check out the DDES Web site at www.metrokc. ov/ddes Drainages-iabilitylnsuranoeRequirement.doc 1-info-drainins.pdf 09113/2005 Page 1 of 1 Web date: 09/09/2005 CERTIFICATION & TRANSFER OF APPLICANT STATUS King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 For alternate formats, call 206-296-6600. 206-296-6600 TTY 206-296-7217 Permit Number: FOR CURRENT OWNER: I, , (print name) hereby certify that I am an/the owner of the property which is the subject of this application for permit or approval, If I am not the sole owner of the property, I certify that I am authorized by any and all other owners of the property to make this certification and transfer any an all rights Ilwe have to apply for this permit or approval to the person listed below. I, therefore certify that (print name) is the "applicant" for this permit or approval and shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department_ By being the "applicant," that individual assumes financial responsibility for all fees and will receive any refunds paid. I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct Signature of Owner Date Signed FOR INDIVIDUALS: I, , (print name) hereby certify that I am the "applicant" for this permit or approval. I shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. I accept financial responsibility for all fees associated with this permit or approval and will receive any refunds. My mailing address is: I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. Signature of Applicant M FOR CORPORATIONS/BUSINESS ASSOCIATIONS: I, Date Signed , (print name) hereby certify that I am an authorized agent of , a corporation or other business association authorized in the State of Washington and that this business association is the "applicant" for this permit or approval and is financially responsible for all fees and will receive any refunds paid. This association shall remain the "applicant" for the duration of this permit or approval unless "applicant" status is transferred in writing on a form provided by this department. The mailing address of this business association is: I certify under penalty of perjury under the laws of the State of Washington that the foregoing is true and correct. Signature of Applicant Date Signed CertAndiransferApplicant5tatusFORM.doc lc-cer-trapstatpdf 09!0912005 Page 1 of 2 NOTICE TO APPLICANTS: By law, this department returns all engineering and other plans to the applicant. If, however, you wish to authorize the department to return engineering and other plans directly to the engineer, architect, or other consultant for the limited purpose of making corrections, please designate below: ❑ I authorize this department to return plans directly to my consultant(s) for the limited purpose of making corrections, as designated on this form. CONSULTANTS: Check out the DDES Web site at t+ vww.mefrokc.gov/dries CertAndTransferApplicant5tatusFORM.doc lc-cer-trapstat.pdf 09109!2005 Page 2 of 2 Parcel Number: 0088000404 Taxpayer: M J F HOLDINGS INC Annexation: NIA Jurisdiction: Unincorporated King County Situs Address: 16613 113TH AVE SE Postal City, Renton, 98055 ---------------------- Plat Name: AKERS FARMS NO- 06; Rec. nil Lot: 4; Block: 6 Kroll Page: 601 E Thomas Bros. Page: 656 114 -S -T -R: NE -29-23-5 Acres: 1.54 (67082 SgFt.) Current Zoning: R-8 Potential Zoning: Comp. Plan Land Use: um Assessor's Open Space: NIA Commercial Use: NIA Number of Units: NIA Mobile Home: N Appraised Land Value: 145000 (2005), 159000 (2006) Appraised Improvements Value: 85000 (2005), 87000 (2006) Community Plan Area: Soos Creek Unincorporated Area Council: NIA School District: Renton School District 403 Fire District: 0040 Roads MPS Zone: 333 ($829.00) Roads TCM Zone: 783 Waterfront: Water Service: Water Service Planning Area: Soos Creek Water And Sewer District Sewer Service: Airport Noise Remedy Program: NIA Bald Eagle Flag: NIA Council District (1996-2001): 6 Rob McKenna (R) Council District (2002): 5 Dwight Pelz Drainage Basin: Soos Creek, WRIA 9 Police: King County, Pct: 3, Dist: F3 Service/Finance Strategy Area: Full Service w/Transit Priority Snowload Zone: Standard Agricultural Production District: N Forest Production District: N Rural Forest Focus Area: N TDR Type: NIA TDR Status: NIA TDR Permit Number: NIA Building Inspection Area: S-6 Clearing Inspection Area: Jim Ballweber Code Enforcement Inspection Area: Bill Turner ESA Inspection Area: Kathy Newborn Grading Inspection Area: Ramon Locsin Land Use Inspection Area: Tim Cheatum Sens. Areas Notice(s) on Title: NONE Aquatic Areas Buffer: N Basin Condition: Medium Flow Control Area: Conservation Flow Water Quality: Basic Water Quality Treatment Critical Aquifer Recharge Area: None Area of Potential Wetland Influence: N SOC 0 DDE King County Department of Development and Environmental Services 900 Oakesdale Ave SW Renton, Washington 98055-1219 December 27, 2005 Summary of Related Activities/Frojects/Dev. Page 1 of 1 Applicant: DREAMCRAFT HOMES Activity Number: 215 E MEEKER Project Number: L991`3010 KENT, WA 98032 Development Number: PRE -PLAT 253 859 9697 Status: PRELAPPR Activity/Project # Comp Type Status L99P3010 PRE -PLAT PRELAPPR A04BN314 BOND RECEIVED A05BN040 BOND RECEIVED A05BN457 BOND RECEIVED A98MO487 PREAPP-M MTG-HELD LOOV0040 SUBVAR GRANTED L03MI092 L-MISC COMPLETE L03RE031 REVISION COMPLETE L03SR052 SITEREV COMPLETE *L04SI161 INSPECT PENDING L04SI162 INSPECT OPEN *L05FRO64 FINAL APPROVED L05SI249 INSPECT OPEN Fee Charges Hours Charges $575.00 $17,410.50 $306,712.00 $0.00 $16,000.00 $0.00 $2,500.00 $0.00 $500.00 $0.00 $93.50 $1,980.00 $0.00 $762.46 $111.58 $724.50 $1,914.25 $29,017.97 $22,922.34 $0.00 $1,913.88 $796.96 $6,823.78 $0.00 $2,710.84 $0.00 Payments Balance Due $17,985.50 $0.00 $306,712.00 $0.00 $16,000.00 $0.00 $2,500.00 $0.00 $500.00 $0.00 $2,073.50 $0.00 $762.46 $0.00 $836.08 $0.00 $30,859.77 $72.45 $22,922.34 $0.00 $899.60 $1,811.24 $6,823.78 $0.00 $2,710.84 $0.00 TOTAL: $362,777.17 $50,692.39 $411,585.87 $1,883.69 * Asterisk denotes Permit under Project Management ie fees shown above represent current charges as of this date and are an estimate based on the information ovided to DDES at the time of application. )r services that are rendered on an hourly basis, the cost of those services will be based on the actual hours caked. Hourly foes are charged at the rate in effect at the time of service, and will be billed monthly, along with l,y other outstanding fees. -es that have been posted prior to permit issuance will be collected at that time. Fees subsequently posted will be lied to the applicant. All fees must be paid in full before DDES issues Final Approval, T.C.O. or C.O. Eros ion/Sedimentation Control (ESC) ESC Supervisor/highly sensitive site ESC Supervisor Taken from the King County Surface Water Design Manual D.5.4 MAINTENANCE REQUIREMENTS All ESC measures shall be maintained and reviewed on a regular basis as prescribed in the maintenance requirements for each BMP and in this section. The applicant shall designate an ESC Supervisor who shall be responsible for maintenance and review of ESC and for compliance with all Permit conditions relating to ESC. The ESC supervisor must be available for rapid response to ESC problems. The ESC supervisor shall review the site at least once a month during the dry season, weekly during the wet season, and within 24 hour$ of significant storms. The County can require that a written record of these reviews be kept on site with copies submitted to DDES within 48 hours. The County Carl also require that the applicant designate an ESC supervisor with demonstrated experience in ESC to perform these reviews and to be responsible for ESC, ESC Supervisor For minor projects, the applicant may serve as the ESC supervisor. The name, address, and phone number of the ESC supervisor shall be supplied to the County shall be posted at all prior to the start of construction, A sign p primary entrances to the site identifying the ESC supervisor and his/her phone number. The requirement for an ESC supervisor does not relieve the applicant of ultimate responsibility for the project and compliance with King County Code. For highly sensitive sites, the County can require that the applicant designate an ESC supervisor with demonstrated expertise in erosion and sediment control. The qualifications of such a person shall include at least several years of construction supervision or inspection and a background in geology, soil science, or agronomy. Typically, if a geotechnical consultant is already working on the project, the consultant can also be the designated ESC supervisor. The design engineer may also be qualified for this position. This requirement shall only be used for sensitive sites that pose an unusually high risk of impact to surface waters. At a miniinum, the project site shall meet all of the following conditions in -order to require the applicant to designate an ESC supervisor with demonstrated expertise in ESC: • Alderwood soils or other soils of Hydrologic Group C.or D 4 Five acres of disturbance • Large areas with slopes in excess of 10 percent Proximity to Class 1. or 2 streams or wetlands or phosphorus -sensitive lakes, such as Lake Sammamish, shall also be a factor in determining if a'site warrants an ESC specialist. However, proximity alone shall not be a determining factor because even projects that are a considerable distance from surface waters can result in significant impacts if there is a natural or constructed drainage system with direct connections to surface waters. If DDES determines that the onsite ESC measures are inadequately installed, located, or maintained, DDES can require the. appointment of an ESC supervisor with expertise in erosion and sediment.control. Documentation If DDES requires that a written record be maintained, a standard ESC Maintenance Report, included in Section D.10.2 (p. D-66), may be used. A copy of all the required"maintenance reports shall be kept on site throughout the duration of construction. Detailed maintenance requirements'for each ESC measure. are provided in Sections D.4.1 through D.4.7. Review Timing During the wet season, weekly reviews shall be carried out every 6 to 8 calendar days. During the dry season, monthly reviews shall be carried out within 3 days of the calendar day for the last inspection (e.g., if an inspection occurred on June 6, then the next inspection must occur between July 3 and July 9). Reviews shall also take place within 24 hours .of'significant storms. In general, a significant'storm is one with more than 0.5 inches of rain in 24 hoursor less. Other indications that a storm is "significant" are if the sediment ponds or traps are. filled with water, or if gullies form as a result of the runoff. Note. The site is to be in. compliance with the regulations of this appendix at all times. The requirement for periodic reviews does not remove the applicant's responsib&6i f for having the'stte constantly in compliance with Core Requirement #5 and the requirements of this appendix. 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O C 0 CD W m m ( Nii C7 D Zl M If x O c 69 M �' ZX. n m mn m 0 m Q 0 W CU D O G� Z o 0 Q r - o � a o 1 T CD N M 5 n rf r�+y CV 3 -010 C CD 3 rt co 0 r+ 0 V/ {p CD r-+. 0 • December 11, 2000 OFFICE OF THE HEARING EXAMINER KING COUNTY, WASHINGTON 850 Union Bank of California Building L99P3010 900 Fourth Avenue Mbrk flargam Seattle, Washington 9$164 DOES / LusD Telephone (206) 296-4660 Engineering Review MS OAK -DE -0100 Facsimile (206) 295-1654 REPORT AND DECISION ON APPLICATION FOR PRELIMINARY PLAT SUBJECT: Department of Development and Environmental Services File No. L99P3010 Proposed Ordinance No. 2000-0577 WILKIN'S WOODS Preliminary Plat Application Location: 16613 -- 1 13th Avenue Southeast, Renton, Washington Applicant: Mel L. Daley Daley-Morrow-Poblete, Inc. 726 Auburn Way North Auburn, WA 98042 Telephone: (253) 333-2200 Facsimile: (253) 333-2206 King County: Department of Development and Environmental Services Land Use Services Division, represented by Daren Scharer 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 Telephone: (206) 296-7114 Facsimile: (206) 296-7051 SUMMARY OF RECOMMENDATIONS: Department's Preliminary Recommendation: Department's Final Recommendation: Examiner's Decision: PRELIMINARY MATTERS: Application or petition submitted: Complete application_ Approve, subject to conditions Approve, subject to conditions Approve, subject to conditions September 9, 1999 October 7, 1999 0 L99P301a-Wi1kins' Woods 2 EXAMINER PROCEEDINGS: Hearing Opened: December 7, 2000 Hearing Closed: December 7, 2000 Participants at the public hearing and the exhibits offered and entered are listed in the attached minutes. A verbatim recording of the hearing is available in the office of the King County Hearing Examiner. ISSUES/TOPICS ADDRESSED: • Student walking conditions , Safe walking conditions • Walkway , Drainage Road standards Interlocal agreement . Density Intersection lighting SUMMARY: Grants preliminary approval to the proposed subdivision of 1.53 acres into 10 single-family residential building lots_ FINDINGS, CONCLUSIONS & DECISION: Having reviewed the record in this matter, the Examiner now makes and enters the following: FINDINGS: 1. General Information. Owner: Developer/ Engineer: John Wilkins 16613 — 113th Ave. SE Renton, WA 98055 Mel L. Daley, P.E_ Daley-Morrow-Poblete, Inc. 726 Auburn Way North Auburn, WA 98002 Telephone: (253) 333-2200 0 0 L99P3010 Wilkins' Woods Location: 16613 – 1131b Avenue SE, Renton, WA STR: 29-23-05 Parcel #}00800 - 0400 Zoning: R-8 SO Acreage: 1.53 acres Number of Lots: 10 Density: 6.5 units per acre Lot Size: Ranges from approximately 3,000 to 6,200 square feet Proposed [Ise: Single-family detached dwellings Sewage Disposal: Soos Creek Water and Sewer Water Supply: Soos Creek Water and Sewer Fire District: King County District #40 School District: Renton School District 2_ Proposal. John Wilkins (the Applicant), represented by Me] L. Daley, P -E.., proposes to subdivide a 1.53 acre parcel into 10 single-family residential building lots. With lot sizes ranging from approximately 3,000 to 6,200 square feet, the plat will achieve a density of approximately 63 dwelling units per acre—within the density range authorized by the R-8 zoning classification. The proposed development is described more precisely in Exhibit No.7 (Preliminary Site Plan) a reduced copy of which is included as Attachment No_ I to the Preliminary Report dated September 7, 2000 (Exhibit No. 2) prepared by the Department of Development and Environmental Services ("DDES" or "Department")_ 3_ State Environmental Policy Act. On October 10, 2000 the Department issued a threshold Determination of Non -Significance (DNS) regarding Wilkins' Wood_ That is, the Department issued its determination that an Environmental Impact Statement (EIS) need not be prepared_ That determination was based upon the Department's finding, having reviewed the environmental checklist and various relevant environmental documents, that the proposed development would not create or cause a probable significant adverse impact on the environment. No agency, tribe, person or other entity appealed that determination. The environmental review record supporting that determination is incorporated in this public review record as well. 4. Department Recommendation. The Department recommends granting preliminary approval to the proposed plat of Wilkins' Wood, subject to the 13 conditions of final plat approval stated on pages 5 through 9 of the Department's Preliminary Report (Exhibit No. 2). Those conditions address density and dimensional requirements of the R-8 zone, platting requirements, public and private road standards, fire protection, drainage (including run off control, conveyance, water quality and geotechnical analysis), road design standards, utilities, mitigation_ payments due to King County Department of Transportation, impact mitigation payments due to the Renton School District, suitable recreation area, "significant tree" provisions, street trees, and inspection fees. 5. Applicant Response. The Applicant accepts the Department's recommendation as set forth in Exhibit No. 2 (Preliminary Report). E L99P3010-Wilkins' Woods 6. Neighboring property owners have expressed concerns regarding traffic, density, drainage, noise, utilities and character of development_ Public hearing participants particularly expressed concern regarding the following: a. Density and character of development. The density of the proposed development complies with the requirements of the zone. The same zone applies to surrounding properties. However, the surrounding properties are not (yet) developed at R-8 density. Thus, the proposed development contrasts with a neighborhood that may be regarded as "large lot" rural/suburban in. character. Generally, County -wide, the King County Comprehensive Plan calls for higher densities in urban areas and lower densities in rural areas. The vicinity of the proposed development has been designated by the County Council as "urban." This determination, already adopted and contained in the Comprehensive Plan and implementing zoning reaps, cannot be reversed through the review of a single subdivision proposal. With small urban lots, some property owners express concern regarding the character of the proposed build out—particularly regarding whether the new homes will be modular, mobile or "stick built." King County does not regulate the "character" of new development. Design review is usually limited to historic preservation districts or similar special areas. However, the Applicant's representative observes that the cost of developing these lots strongly mitigates against mobile home placement. In order to recover development costs, one may reasonably expect more substantial homes_ b_ Drainage. The subject property is divided into two sub -basins. However, the Applicant has obtained a drainage adjustment that authorizes collecting all impervious surface drainage on the property, then conveying it to a single retentior/detention facility. At final plat approval, the facility will be transferred to King County ownership. King County will be responsible for maintenance as well_ The drainage will be conveyed westward from the subject property to the 111th Avenue Southeast system through approved and accepted easements. Both storage and conveyance capacities must comply with King County Drainage Standards Manual. Northerly flowing drainage to the abutting Chihara property will be slightly reduced. Safe walking conditions_ RCW 58.17.110 requires that before granting preliminary plat approval the Examiner must find a condition of safe walking conditions for students who only walk to school. In order to meet this standard, the Department recommends, and the Applicant accepts, the following: Sidewalk, curb and gutter development to County Urban Standard along the 200 foot property frontage_ Several hundred feet of (minimum) 5 -foot wide gravel pathway, constructed to King County Road Standards specifications (extending from the subject property northward to Southeast 164th Street). Details of that walkway construction must be approved by the Department and will be coordinated with abutting/fronting property owners. A variety of design solutions are possible. In some cases, fences may be 0 t.99P301O-Wilkins' Woods 0 required to be moved. In others, the open ditch along 113th Avenue Southeast may be culverted. In yet others, the walkway may meander around a significant tree. The final design will be administratively approved by the DDES Engineering Review Unit as a condition of final plat approval. City of Renton Concerns- The City of Renton and King County have not entered into an interlocal agreement whereby concerns regarding development standards may be mutually addressed, or whereby the City might influence development approvals and conditions within its intended future annexation area. Nonetheless, the City Engineering Department has offered comment in this case. The City requests that the proposed development be required to comply with City of Renton standards. The City standards, according to the DDES Review Engineer, would require wider sidewalks, wider street roadway, and a larger turn -around bulb. The minimum County standards for a "minor access" street such as this one satisfy the dimensional requirements of the King County Fire Marshall (whose concern includes large vehicle access and turn -around capability)_ Whether the standards promulgated by the City should be considered as "lower" or "higher'.' is subject to dispute. Although the City standards allow greater vehicle maneuverability, they also increase the impervious surface load upon drainage systems. The Applicant opposes the City's recommendation because the City standards would require major redesign (at this very late date in the preliminary plat review process) and could reduce the number of lots authorized by the R-8 zoning classification_ 8. Except as noted above, the facts and analysis contained in the Land Use Services Division Preliminary Report dated December 7, 2000 correct and are incorporated here by reference_ A copy of the Land Use Services Division report will be attached to those copies of the examiner's report which are submitted to the King County Council_ 9. Any portion of any of the following conclusions that may be construed as a finding is incorporated here by this reference. CONCLUSIONS: Any portion of any of the above findings that may be construed as a conclusion is incorporated here by this reference. 2. If approved subject to the conditions recommended below, the proposed subdivision will comply with the goals and objectives of the King County Comprehensive Plan, Subdivision and Zoning Codes, and other official land use controls and policies of King County_ 3. If approved subject to the conditions recommended below, this proposed subdivision will make appropriate provision for the public health, safety and general welfare and for open spaces, for drainage ways, streets, other public ways, transit stops, potable water supply, sanitary wastes, parks and recreations, playgrounds, schools and school grounds, and safe walking conditions for students who only walk to school; and it will serve the public use and interest. 0 L99P3010-Wilkins' Woods 0 4. The conditions for final plat approval recommended below are in the public interest and are reasonable requirements to mitigate the impacts of this development upon the environment_ 5_ The dedications of land or easements within and adjacent to the proposed plat, as recommended by the conditions for final plat approval or as shown on the proposed preliminary plat submitted by the applicant, are reasonable and necessary as a direct result of the development of this proposed plat. DECISION: The proposed plat of Wilkins' Wood is GRANTED PRELIMINARY APPROVAL; subject to the following conditions of final plat approval: Compliance with all platting provisions of Title 19 of the King County Code. 2. All persons having an ownership interest in the subject property shall sign on the face of the final plat a dedication which includes the language set forth in King County Council Motion No. 5952. 3. The plat shall comply with the base density (and minimum density) requirements of the R-8 zone classification. All lots shall meet the minimum dimensional requirements of the R-8 zone classification or shall be as shown on the face of the approved preliminary plat, whichever is larger, except that minor revisions to the plat which do not result in substantial changes may be approved at the discretion of the Department of Development and Environmental Services_ 4. All construction and upgrading of public and private roads shall be done in accordance with the King County Road Standards established and adopted by Ordinance No. 11187, as amended 0 (1993 KCRS)_ The applicant must obtain the approval of the King County Fire Protection Engineer for the adequacy of the fire hydrant, water main, and fire flow standards of Chapter 17.08 of the King County Code_ 6. Final plat approval shall require full compliance with the drainage provisions set forth in King County Code 9.04. Compliance may result in reducing the number and/or location of lots as shown on the preliminary approved plat. Preliminary review has identified the following conditions of approval, which represent portions of the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also be satisfied during engineering and final review. Drainage plans and analysis shall comply with the 1998 King County Surface Water Design Manual. DDES approval of the drainage and roadway plans is required prior to any construction. b. Current standard plan notes and ESC notes, as established by DDES Engineering Review shall be shown on the engineering plans. 0 L88P3010-Wilkins' Woods 0 C_ The following note shall be shown on the final recorded plat: " All building downspouts, footing drains, and drains from all impervious surfaces such as patios and driveways shall be connected to the permanent storm drain outlet as shown on the approved construction drawings # on file with DDES and/or the Department of Transportation. This plan shall be submitted with the application of any building permit_ All connections of the drains must be constructed and approved prior to the final building inspection approval. For those lots that are designated for individual lot infiltration systems, the systems shall be constructed at the time of the building permit and shall comply with the plans on file_" d. Core Requirement No. 1: Discharge at the Natural Location. The applicant has received approval for the requested diversion of surface water within the project (See Adjustment File LOOV0040). The conditions for variance approval shall be satisfied during design and review of the project engineering plans. C. Core Requirement No. 3. Runoff Control. Storm water runoff control shall be provided using the Level One flow control detention criteria outlined in the 1998 King County Surface Water Design Manual (KCSWDM). The downstream conveyance capacity shall be evaluated during engineering review to accommodate developed, undetained flows above the design storms handled by the Level One flow control criteria. This will be required per Core Requirement 114 of the SWDM at engineering review. The size of the proposed drainage tract may have to increase to accommodate the required detention storage volume. The runoff control facilities shall be Iocated in a separate tract and dedicated to King County unless portions of the drainage tract are used for required recreation space in accordance with KCC 21A_14.180. As specified in section 5.1 -1 of the 1998 KCSWDM, roof drain storm water shall be infiltrated or dispersed within the lot area if the soil conditions are favorable_ f_ Core Requirement No_ 4: Conveyance Systems. The outlet pipe from the detention facility that is proposed to convey storm water over the downstream Weber property shall adhere to Section 4.2.I of the 1998 KCSWDM. g. Core Requirement No. 8. Water Quality. The site is subject to the Basic water quality requirements of the 1998 KCSWDM. h. Special Requirement No. 1: Other Adopted Area Specific Requirements. The project is located within the Soos Creek Community Planning Area that contains 0 L99P3o1D-Wilkins' Woods special district overlays for seasonal clearing restrictions, clearing and grading and significant trees- The applicable P -suffix requirements shall be addressed on the final engineering plans. Geotechnical Analysis and Report. A "Geotechnical Engineering Evaluation and Limited Subsurface Environmental Assessment" has been performed by AdaPT Engineering, Inc. Shallow depth to bedrock and marginal fill materials were located in the western and eastern portions of the site, respectfully. Recommendations from this report shall be implemented during engineering review. The proposed subdivision shall comply with the 1993 King County Road Standards (KCRS). including the following requirements: a. Proposed SE 167th Court shall be improved as an urban minor access street - b. Frontage road improvements on 113th Avenue SE are required to the urban subcollector standard. Tracts A and C shall be improved as privateJoint use driveways which serve a maximum of two lots. The serving lots shall have undivided ownership of the tract and be responsible for its rnaintcnancc. As specified in KCRS 3.01 C, improvements shall include an 18 foot paved surface and a minimum tract width of 20 feet. Drainage control shall include a curb or thickened edge on one side. d. The proposed road improvements shall address the requirements for road surfacing outlined in KCRS Chapter 4- As noted in section 4.0117, full width pavement overlay is required where widening existing asphalt, unless waived by the review engineer or reviewing agency - e. Street trees shall be included in the design of all road improvements, and shall comply with Section 5-03 of the KCRS. f. Off-site road improvements of 113th Avenue SE north to SE 164th Street are required for safe school children walking conditions. Provide at a minimum a 5 -foot wide gravel walkway. g- There shall be no direct vehicular access to or from 113th Ave. SE from Lot 4, which abut it. A note to this effect shall appear on the engineering plans and final plat. h. Modifications to the above road conditions may be considered by King County pursuant to the variance procedures in KCRS 1,08 - All utilities within proposed rights-of-way must be included within a franchise approved by the King County Council prior to final plat recording- L99P3010-Wilkins' Woods 9 9. The applicant or subsequent owner shall comply with King County Code 14.75, Mitigation Payment System (MPS), by paying the required MPS fee and administration fee as determined by the applicable fee ordinance. The applicant has the option to either: (1) pay the MPS fee at final plat recording, or (2) pay the MFS fee at the time of building permit issuance_ If the first option is chosen, the fee paid shall be the fee in effect at the time of plat application and a note shall be placed on the face of the plat that reads, "All fees required by King County Code 14.75, Mitigation Payment System (MPS), have been paid." If the second option is chosen, the fee paid shall be the amount in effect as of the elate of building permit application. 10. Lots within this subdivision are subject to King County Code 21 A_43, which imposes impact fees to fund school system improvements needed to serve new development_ As a condition of final approval, fifty percent (50%) of the impact fees due for the plat shall be assessed and collected immediately prior to recording, using the fee schedules in effect when the plat receives final approval. The balance of the assessed fee shall be allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance. 1 l . Suitable recreation space shall be provided consistent with the requirements of KCC 2IA. 14.180 and KCC 21 A.14.190 (Le., sport court[s], children's play equipment, picnic table[s], benches, etc_}. a_ An overall conceptual recreation space plan shall be submitted for review and approval by DDES, with the submittal of the engineering plans_ This plan shall include location, area calculations, dimensions, and general improvements. The approved engineering plans shall be consistent with the overall conceptual plan. b. A detailed recreation space plan (i.e., landscape specs, equipment specs, etc_) consistent with the overall conceptual plan, as detailed in item a., shall be submitted for review and approval by DDES and King County Parks prior to or concurrent with the submittal of the final plat documents. c_ A performance bond for recreation space improvements shall be posted prior to recording of the plat. d_ A homeowners' association or other workable organization shall be established to the satisfaction of DDES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s). 12- SO -220 shall be implemented through submittal of engineering plans in compliance with the significant tree provisions. 13. Street trees shall be provided as follows (per KCRS 5.03 and KCC 21 A.] 6.050): a_ Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads_ Spacing may be modified to accommodate sight distance requirements for driveways and intersections. 0 0 L99P3014-Wilkins' Woods 10 b. 'frees shall be located within the street right-of-way and planted in accordance with Drawing No. 5-009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right -of -way - If King County determines that the required street trees should not be located within the right-of-way, they shall be located no more than 20 feet from the street right-of-way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or other workable organization unless the County has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. The species of trees shall be approved by DDES if located within the right-of-way, and shall not include poplar, cottonwood, soft maples, gum, any fruit -bearing trees, or any other tree or shrub whose roots are likely to obstnict sanitary or storm sewers, or that is not compatible with overhead utility lines. f. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by DDES prior to engineering plan approval. g. The applicant shall contact Metro Service Planning at 684-1622 to determine if 113th Ave. SE is on a bus route. If 1 i A Ave. SE is a bus route, the street tree plan shall also be reviewed by Metro. h_ The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kept healthy and thriving_ i. A landscape inspection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current County fees. ORDERED this 1 Itb day of December, 2000. L] L99P3010-Wilkins' Woods 0 II TRANSMIYfED this I I th day of December, 2000, to the following parties and interested persons: Jim Chihara John Wilkins Mel Daley Mark Bergam Roger Dorslad Greg Borba Connie L Johnson Kim Claussen Linda Matlock Peter Dye Eleanor Moon Nick Gillen Paul Morrow Kristen Langley New Home Trends Aileen McManus Mike Ryan Carol Rogers Beth A Scheffer Karen Scharer Seattle -King County Health Dept Larry West Chris Nunnallee NOTICE OF RIGHT TO APPEAL In order to appeal the decision of the Examiner, written notice of appeal must be filed with the Clerk of the King County Council with a fee of $125.00 (check payable to King County Office of Finance) on or before December 25, 200p. If a notice of appeal is filed, the original and six (6) copies of a written appeal statement specifying the basis for the appeal and argument in support of the appeal must be filed with the Clerk of the King County Council on or before January 1, 2001. Appeal statements may refer only to facts contained in the hearing record; new facts may not be presented on appeal. Filing requires actual delivery to the Office of the Clerk of the Council, Room 403, King County Courthouse, prior to the close of business (4.30 p.m.) on the date due. Prior mailing is not sufficient if actual receipt by the Clerk does not occur within the applicable time period. The Examiner does not have authority to extend the time period unless the Office of the Clerk is not open on the specified closing date, in which event delivery prior to the close of business on the next business day is sufficient to meet the filing requirement. If a written notice of appeal and filing fee are not filed within fourteen (14) calendar days of the date of this report, or if a written appeal statement and argument are not filed within twenty-one (21) calendar days of the date of this report, the decision of the hearing examiner contained herein shall be the final decision of King County without the need for further action by the Council. MINUTES OF 71 IE DECEMBER 7, 2000 PUBLIC BEARING ON DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES FILE NO. L99P3010-- WILKINS' WOOD= R. S. Titus was the Bearing Examiner in this matter. Participating in the hearing and representing the Department was Karen Scharer and Marie Bergam. Participating in the hearing and representing the Applicant was Mel Daley. Other participants in this hearing were Jim Chihara and Chris Nunnallec. 'Ilse following exhibits were offered and entered into the record: Exhibit No. 1 DDES File No. L99P3010 Exhibit No. 2 DDES Preliminary Report to the Hearing Examiner, dated December 7, 2000 Exhibit No. 3 Application, dated September 9, 1999 Exhibit No. 4 Environmental Checklist, dated August 25, 1999 Exhibit No. 5 Declaration of Non -significance, dated October 10, 2000 Exhibit No. 6 Affidavit of Posting indicating October 13, 999 as date of posting and October 15, 1999 as the date the affidavit was received by DDES. Exhibit No. 7 Site Plan (preliminary plat drawing), dated July 27, 2000, received July 28, 2000 Exhibit No. 8 Revised Downstream Analysis, DMP Engineering, Inc., received March 27, 2000 Exhibit No. 9 Assessors Map NE 29-23-05 L99P3010-Wilkins' Woods 12 Exhibit No, 10 Geotechnical Analysis, AdaPT Engineering, Inc., received March 27, 2000 Exhibit No. 1 l Pedestrian Analysis, Daley-Morrow-Poblete, Inc., received March 27, 2000 Exhibit No_ 12 Application for Surface Water Drainage Manual Adjustment Request, received March 2T, 2000 Exhibit No. 13 Letter received January 4, 2000 from Michial Ryan 1xliibit No. 14 Letter received November 9, 2000 from Jim Chihara Exhibit No. 15 E-mail from the City of Renton, dated December 5, 2000 and received December 5, 2000 requesting the County to use the City development standards for road improvements RST:sje Ptats/L99P3010 RPT TOWNSEND, STEVE L99P3010 LAND USE INSPECTIONS MS: OAK -DE -0100 LUSD.'1,I_ IS 00A) DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES LAND USE SERVICES DIVISION KING COUNTY, WASHINGTON PRELIMINARY REPORT TO THE HEARING EXAMINER December 7, 2000 - PUBLIC HEARING AT 9:30 AM DDES Hearing Room 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 Phone: (206) 296-6600 PROPOSED PLAT OF WILKIN'S WOOD FILE NO: L99P3010 PROPOSED ORDINANCE NO: 2000-0577 A. SUMMARY OF PROPOSED ACTION: This is a request for a subdivision of 1.53 acres into 10 lots for detached single-family dwellings. The proposed density is approximately 6.5 dwelling units per acre. The lot sizes range from approximately 3,000 square feet to 6,200 square feet. See Attachment 1 for a copy of the proposed plat map. B. GENERAL INFORMATION: Owner: John Wilkins 16613 113' Ave. SE Renton, WA 98055 Developer/Engineer. Mel L. Daley, P.E. Daley-Morrow-Poblete, Inc. 726 Auburn Way North Auburn, WA 98002 Phone # 253-333-2200 STR: 29-23-05 Parcel # 008800 - 0400 Location: 16613 113`' Avenue SE, Renton, WA Zoning: R-8 SO Acreage: 1.53 acres Number of Lots: 10 Density: 6.5 units per acre Lot Size: Ranges from approximately 3,000 to 6,200 square feet Proposed Use: Single-family detached dwellings Sewage Disposal: Soos Creek Water and Sewer Water Supply: Soos Creek Water and Sewer Fire District: King County District #40 School District: Renton School District Staffrpt/masters/PLATFMT.Oct 1997 C. IN E. F. • HISTORY/BACKGROUND: Willen's Wood L99P3010 Page 2 The Subdivision Technical Committee (STC) of King County has conducted an on-site examination of the subject property. The STC has discussed the proposed development with the applicant to clarify technical details of the application, and to determine the compatibility of this project with applicable King County plans, codes, and other official documents regulating this development. As a result of preliminary discussions, the applicant presented the Technical Committee with a revised plat on July 28, 2000. The primary modifications include revision of the lot dimensions, two lots fronting on 113` Ave. SE, shifting of the storm drainage facility south by 50 feet and the relocation of the recreation tract to a more central location on site. THRESHOLD DETERMINATION OF ENVIRONMENTAL SIGNIFICANCE: Pursuant to the State Environmental Policy Act (SEPA), RCW 43.21 C, the responsible official of the Land Use Services Division (LUSD) issued a threshold determination of non -significance (DNS) for the proposed development on October 10, 2000. This determination was based on the review of the environmental checklist and other pertinent documents, resulting in the conclusion that the proposal would not cause probable significant adverse impacts on the environment. Therefore, an environmental impact statement (EIS) was not required prior to proceeding with the review process. Agencies, affected Native American tribes and the public were offered the opportunity to comment on or appeal the determination for 14 days. The DNS was not appealed by any party, including the applicant, and it has been incorporated as part of the applicant's proposal. AGENCIES CONTACTED: 1. King County Department of Natural Resources: No response. 2. King County Parks Department: No response. 3. King County Fire Protection Engineer: Fire protection engineering preliminary approval has been granted. 4. Renton School District # : The comments of the district are incorporated into this report. 5. Soos Creek Water & Sewer District: The comments from this district have been incorporated into this report. 6. Washington State Department of Ecology: No response. 7. Washington State Department of Fish and Wildlife: No response. 8. Washington State Department of Natural Resources: No response. 9. Washington State Department of Transportation: No response. 10. METRO: No response. 11. City of Renton: No Response NATURAL ENVIRONMENT: 1. Topography: The property has a high point in the central portion of the site with the property sloping down to the west and somewhat to the east. 2. Soils: Alderwood gravely, sandy loam; 6-15% slopes (AgC surfaces soils) are found on this site per King County Soil Survey, 1973. Runoff is slow to medium and the hazard of erosion is moderate. This soil has a moderate limitation for foundations, due to a seasonally high water table and slope. It has a severe limitation for septic tank filter fields due to very slow permeability in the substratum. Wetland/streams: According to the King County Sensitive Areas Folio and Level 1 Drainage Analysis , the nearest stream is 400 feet to the west of the property and closest wetland is 1/4 mile to the southwest. No mapped hydrographic features exist on this site. The site lies within the Soos Creek sub -basin of the Green River Drainage Basin. Staffrpt/masters/PLATFMT.Nov99.doc - 2 - G H. Willen's 'Wood L99P3010 Page 3 4, Vegetation: This site is primarily covered in grass on the east portion. Scattered ornamental evergreen/deciduous trees and shrubs occur in limited numbers. Undergrowth of sallal, sword fern, and salmonberry is present on the west portion. The Overlay District of SO -220 requiring retention of significant trees or replacement of significant trees applies to this property and other properties in the area. 5. Wildlife: No threatened or endangered species are known to exist on or near the property. 6. Mapped Sensitive Areas: The Sensitive Areas Folio does not identify any mapped sensitive areas as being present on this site, NEIGHBORHOOD CHARACTERISTICS: The property lies southeast of the City of Renton on the southeast hill. The site is surrounded by a residential area with a mix of lot sizes and densities. Adjacent properties are developed with residences on larger lots than the proposed lots. Bonneville Transmission Power Line. SUBDIVISION DESIGN FEATURES: Mid -block northeast of the property is a Lot Pattern and Density: The proposed lot and street layout is in conformance with King County Code 21A.(zoning) and the King County Road Standards. Note, the applicant applied for and received an adjustment to the Surface Water Drainage Manual for drainage provisions. 2. Internal Circulation: The proposed lots will be served from 113'hAve. SE and a cul-de-sac labeled SE 167" Court. Roadway Section: The roads will be constructed to urban standards. Sidewalks will be constructed along the frontage on the west side of 1136 Ave. SE and on the north side of proposed SE 167' Court. 4. Drainage: The applicant has received approval for adjustment from the 1998 Surface Water Design Manual (LOOV0040) to direct drainage from the two on-site basins into one detention facility (Tract D) located on the west portion of the site and released to the west. See Attachment 3 to this report. TRANSPORTATION PLANS: 1. Transportation Plans: The King County Transportation Plan indicates that 113" Ave. SE is designated as a subcollector. The subject subdivision is not in conflict with this plan, nor the non -motorized or trail plan(s). 2. Subdivision Access: The site will gain access from the north via 113" Ave. SE. 3. Traffic Generation: It is expected that approximately 100 vehicle trips per day will be generated with full development of the proposed subdivision. This calculation includes service vehicles (i.e., mail delivery, garbage pick-up, school bus) which may currently serve this neighborhood, as well as work trips, shopping, etc. 4. Adequacy of Arterial Roads: This proposal has been reviewed under the criteria in King County Code 14.70, Transportation Concurrency Management; 14.80, Intersection Standards; and King County Code 14.75; Mitigation Payment System. a. King County Code 14.70 - Transportation Concurrency Management: The Transportation Certificate of Concurrency dated June 7, 1999, indicates that transportation improvements or strategies will be in place at the time of development, or that a financial commitment is in place to complete the improvements or strategies within six (6) years, according to RC W 36.70A.070(6). staffrpt/masters/PLATFMT_Nov99.doc - 3 - Willen's Wood L99P3010 Page 4 b. King County Code 14.80 - Intersection Standards: The traffic generated by this subdivision falls below the threshold requiring mitigation. The existing arterial system will accommodate the increased traffic volume generated by this proposal. C. King County Code 14.75 - Mitigation Payment System: King County Code 14.75, Mitigation Payment System (MPS), requires the payment of a traffic impact mitigation fee (MPS fee) and an administration fee for each single family residential lot or unit created. MPS fees are determined by the zone in which the site is located. This site is in Zone 333 per the MPS/Quartersection list. MPS fees may be paid at the time of final plat recording, or deferred until building permits are issued. The amount of the fee will be determined by the applicable fee ordinance at the time the fee is collected. J. PUBLIC SERVICES: 1. Schools: This proposal has been reviewed under RCW 58.17.110 and King County Code 21A.28 (School Adequacy). a. School Facilities: The subject subdivision will be served by Cascade Elementary, Nelson Junior High, and Lindbergh Senior High Schools, all located within the Renton School District. b. School Impact Fees: No ordinance requiring impact fees for this school district has been adopted. C. School Access. The District has indicated that the fixture students from this subdivision will walk to all schools. The main access walking access to all schools is north on 113' Ave. SE, which currently has no shoulder or sidewalk. At SE 164`h St. and streets beyond to all schools either have paved shoulders, walkways, or sidewalks. 2. Parks and Recreation Space: The nearest public park is Cascade Park located 1 mile to the east. KCC 21A.14 requires subdivisions in the LTR and R zone classifications to either provide on-site recreation space or pay a fee to the Parks Division for establishment and maintenance of neighborhood parks. At this time, the applicant is proposing to provide suitable recreation space. The Subdivision Technical Committee concurs with the applicant's proposal. KCC 2IA. 14.190 requires subdivisions to provide tot/children play areas within the recreation space on-site. The proposal includes a 3,901 -square -foot play area. 3. Fire Protection: The Certificate of Water Availability from the Soos Creek Water and Sewer District indicates that water is presently available to the site in sufficient quantity to satisfy King County Fire Flow Standards. Prior to final recording of the plat, the water service facilities must be reviewed and approved per King County Fire Flow Standards. K. UTILITIES: Sewage Disposal: A Certificate of Sewer Availability, dated May 27, 1999, indicates this sewer district's capability to serve the proposed development. 2. Water Supply: A Certificate of Water Availability, dated May 27, 1999, indicates this district's capability to serve the proposed development. staffrpt/maacers/PLATFMT.Ncv99.doc - 4 - 0 0 Willen's Wood L99P3010 Page 5 L. COMPREHENSIVE AND COMMUNITY PLAN: Comprehensive Plan: This proposal is governed by the 1994 King County Comprehensive Plan, which designates this area as Urban. The proposed subdivision is not in conflict with the policies of the Comprehensive Plan. 2. Community Pians: The subject subdivision is located in the Soos Creek Planning Area. The subject subdivision is not in conflict with the goals, guidelines, and policies of the Community Plan, M. STATUTES/CODES: If approved with the recommended conditions in this report, the proposed development will comply with the requirements of the County and State Platting Codes and Statutes, and the lots in the proposed subdivision will comply with the minimum dimensional requirements of the zone district. N. ANALYSIS: The Subdivision Technical Committee has not identified any significant issues involved in the preliminary review and recommendations of this proposal. 0. CONCLUSIONS: The subject subdivision will comply with the goals and objectives of the King County Comprehensive Plan and will comply with the requirements of the Subdivision and Zoning Codes and other official land use controls of King County, based on the conditions for final plat approval. P. RECOMMENDATIONS: It is recommended that the subject subdivision, revised and received July 28, 2000, be granted preliminary approval subject to the following conditions of final approval: 1. Compliance with all platting provisions of Title 19 of the King County Code. 2. All persons having an ownership interest in the subject property shall sign on the face of the final plat a dedication which includes the language set forth in King County Council Motion No. 5952. 3. The plat shall comply with the base density (and minimum density) requirements of the R-8 zone classification. All lots shall meet the minimum dimensional requirements of the R-8 zone classification or shall be as shown on the face of the approved preliminary plat, whichever is larger, except that minor revisions to the plat which do not result in substantial changes may be approved at the discretion of the Department of Development and Environmental Services. 4. All construction and upgrading of public and private roads shall be done in accordance with the King County Road Standards established and adopted by Ordinance No. 11187, as amended (1993 KCRS). 5. The applicant must obtain the approval of the King County Fire Protection Engineer for the adequacy of the fire hydrant, water main, and fire flow standards of Chapter 17.08 of the King County Code. b. Final plat approval shall require full compliance with the drainage provisions set forth in King County Code 9.04. Compliance may result in reducing the number and/or location of lots as shown on the preliminary approved plat. Preliminary review has identified the staffrpt/masters/PLATFMT.Nov99.doc - 5 - Willen's Wood L99P3010 Page 6 following conditions of approval, which represent portions of the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also be satisfied during engineering and final review. a. Drainage plans and analysis shall comply with the 1998 King County Surface Water Design Manual. DDES approval of the drainage and roadway plans is required prior to any construction. b. Current standard plan notes and ESC notes, as established by DDES Engineering Review shall be shown on the engineering plans. c. The following note shall be shown on the final recorded plat: " All building downspouts, footing drains, and drains from all impervious surfaces such as patios and driveways shall be connected to the permanent storm drain outlet as shown on the approved construction drawings # on file with DDES and/or the Department of Transportation. This plan shall be submitted with the application of any building permit. All connections of the drains must be constructed and approved prior to the final building inspection approval. For those lots that are designated for individual Iot infiltration systems, the systems shall be constructed at the time of the building permit and shall comply with the plans on file." d. Core Requirement No. 1: Discharge at the Natural Location. The applicant has received approval for the requested diversion of surface water within the project (See Adjustment File LOOV0040). The conditions for variance approval shall be satisfied during design and review of the project engineering plans. e. Core Requirement No. 3: Runoff Control. Storm water runoff control shall be provided using the Level One flow control detention criteria outlined in the 1998 King County Surface Water Design Manual (KCSWDM). The downstream conveyance capacity shall be evaluated during engineering review to accommodate developed, undetained flows above the design storms handled by the Level One flow control criteria. This will be required per Core Requirement #4 of the SWDM at engineering review. The size of the proposed drainage tract may have to increase to accommodate the required detention storage volume. The runoff control facilities shall be located in a separate tract and dedicated to King County unless portions of the drainage tract are used for required recreation space in accordance with KCC 21A.14.180. As specified in section 5. 1.1 of the 1998 KCSWDM, roof drain storm water shall be infiltrated or dispersed within the lot area if the soil conditions are favorable. £ Core Requirement No. 4: Conveyance Systems. The outlet pipe from the detention facility that is proposed to convey storm water over the downstream Weber property shall adhere to Section 4.2.1 of the 1998 KCSWDM. g. Core Requirement No. 8: Water Quality. The site is subject to the Basic water quality requirements of the 1998 KCSWDM. h. Special Requirement No. 1: Other Adopted Area Specific Requirements. The project is located within the Soos Creek Community Planning Area that contains special district overlays for seasonal clearing restrictions, clearing and grading and significant trees. The applicable P -suffix requirements shall be addressed on the final engineering plans. staffrpt/masters/PLATPMT.Nov99.doc - 6 - Willen's Wood L99P3010 Page 7 i. Geotechnical Analysis and Report. A "Geotechnical Engineering Evaluation and Limited Subsurface Environmental Assessment" has been performed by AdaPT Engineering, Inc. Shallow depth to bedrock and marginal fill materials were located in the western and eastern portions of the site, respectfully. Recommendations from this report shall be implemented during engineering review. 7. The proposed subdivision shall comply with the 1993 King County Road Standards (KCRS) including the following requirements: a. Proposed SE 167'x' Court shall be improved as an urban minor access street. b. Frontage road improvements on 113'x' Avenue SE are required to the urban subcollector standard. c. Tracts A and C shall be improved as private joint use driveways which serve a maximum of two lots. The serving lots shall have undivided ownership of the tract and be responsible for its maintenance. As specified in KCRS 3.01C, improvements shall include an 18 foot paved surface and a minimum tract width of 20 feet. Drainage control shall include a curb or thickened edge on one side. d. The proposed road improvements shall address the requirements for road surfacing outlined in KCRS Chapter 4. As noted in section 4.01F, full width pavement overlay is required where widening existing asphalt, unless waived by the review engineer or reviewing agency. e. Street trees shall be included in the design of all road improvements, and shall comply with Section 5.03 of the KCRS. f. Off-site road improvements of 113th Avenue SE north to SE 1640' Street are required for safe school children walking conditions. Please provide at a minimum a 5 -foot wide gravel walkway. g. There shall be no direct vehicular access to or from 113` Ave. SE from Lot 4, which abut it. A note to this effect shall appear on the engineering plans and final plat. h. Modifications to the above road conditions may be considered by King County pursuant to the variance procedures in KCRS 1.08. 8. All utilities within proposed rights -of --way must be included within a franchise approved by the King County Council prior to final plat recording, 9. The applicant or subsequent owner shall comply with King County Code 14.75, Mitigation Payment System (MPS), by paying the required MPS fee and administration fee as determined by the applicable fee ordinance. The applicant has the option to either: (1) pay the MPS fee at final plat recording, or (2) pay the MPS fee at the time of building permit issuance. If the first option is chosen, the fee paid shall be the fee in effect at the time of plat application and a note shall be placed on the face of the plat that reads, "All fees required by King County Code 14.75, Mitigation Payment System (MPS), have been paid." If the second option is chosen, the fee paid shall be the amount in effect as of the date of building permit application. 10. Lots within this subdivision are subject to King County Code 21A.43, which imposes impact fees to fund school system improvements needed to serve new development. As a condition of final approval, fifty percent (50%) of the impact fees due for the plat shall be assessed and collected immediately prior to recording, using the fee schedules in effect when the plat receives final approval. The balance of the assessed fee shall be allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance. Staffrpt/masters/PLATB4T.Nov99.doc - ! - Willen's Wood L99P3010 Page 8 11. Suitable recreation space shall be provided consistent with the requirements of KCC 2IA. 14.180 and KCC 2IA. 14.190 (i.e., sport court[s], children's play equipment, picnic table[s], benches, etc.). a. An overall conceptual recreation space plan shall be submitted for review and approval by DDES, with the submittal of the engineering plans. This plan shall include location, area calculations, dimensions, and general improvements. The approved engineering plans shall be consistent with the overall conceptual plan. b. A detailed recreation space plan (i.e., landscape specs, equipment specs, etc.) consistent with the overall conceptual plan, as detailed in item a., shall be submitted for review and approval by DDES and King County Parks prior to or concurrent with the submittal of the final plat documents. C. A performance bond for recreation space improvements shall be posted prior to recording of the plat. d. A homeowners' association or other workable organization shall be established to the satisfaction of DDES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s). 12. SO -220 shall be implemented through submittal of engineering plans in compliance with the significant tree provisions. 13. Street trees shall be provided as follows (per KCRS 5.03 and KCC 21A.16.050): a. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accommodate sight distance requirements for driveways and intersections. b. Trees shall be located within the street right-of-way and planted in accordance with Drawing No. 5-009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right-of-way. C. If King County determines that the required street trees should not be located within the right-of-way, they shall be located no more than 20 feet from the street right- of-way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or other workable organization unless the County has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. e. The species of trees shall be approved by DDES if located within the right-of- way, and shall not include poplar, cottonwood, soft maples, gum, any fruit -bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. f. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by DDES prior to engineering plan approval. g. The applicant shall contact Metro Service Planning at 684-1622 to determine if 113' Ave. SE is on a bus route. If 113' Ave. SE is a bus route, the street tree plan shall also be reviewed by Metro. Staffrpt/masters/PLATPMT.Nov99.dcc - 8 - Willen's Wood L99P3010 Page 9 h. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kept healthy and thriving. i. A landscape inspection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current County fees. OTHER CONSIDERATIONS: The subdivision shall conform to KCC 16.82 relating to grading on private property. 2. Development of the subject property may require registration with the Washington State Department of Licensing, Real Estate Division. 3. Preliminary approval of this application does not limit the applicant's responsibility to obtain any required permit or license from the State or other regulatory body. This may include, but is not limited to the following: a. Forest Practice Permit from the Washington State Dept. of Natural Resources. b. National Pollutant Discharge Elimination System (NPDES) Permit from WSDOE. c. Water Quality Modification Permit from WSDOE. d. Water Quality Certification (401) Permit from U.S. Army Corps of Engineers TRANSMITTED TO PARTIES LISTED HEREAFTER: King County Hearing Examiner Steven C. Townsend, P.E., Supervising Engineer, Land Use Inspection Section, LUSD BORBA, GREG,CPLN SUPERVISOR MS: OAK -DE -0100 LUSD/CPLN Chihara, Jim, 16475 113th SE Renton, WA 98055 Claussen, Kim, Sr Plat Planner Ms: Oak -De -0100 LUSD/CPLN Daley-Morro-Poblette, Inc. Paul E. Morrow, 726 Auburn Way North, Auburn, WA 98002 Dmp, Inc, Mel L. Daley, P.E. 726 Auburn Way North Auburn, WA 98002 Dorstad, Roger, 16651 NE 79th St. Redmond, WA 98052 Dye, Pete, Preliminary Review PIanner Ms: Oak -De -0100 LUSD/ERS Gillen, Nick, Wetland Reviewer Ms: Oak -De -0100 LUSD/SDSS Johnson, Connie L, 2109 Se 22nd P1, Renton, WA 98055 KC Executive Horse Council Eleanor Moon, 12230 NE 615` , Kirkland, WA 98033 Langley, Kristen, KC Dot -Roads Division Ms: Ksc-Tr-0222 McManus, Aileen, Traffic Reviewer Ms: Oak -De -0100 LUSD/CPLN Hearing Examiners Office, Cheryle Packard L99p3010 Wilkins Wood Ms: Boc - Cc - 0850 New Home Trends, 18912 N. Creek Pkwy, Suite 211 Bothell, WA 98011 Rogers, Carol, Current Planning Section Ms: Oak -De -0100 LUSD/CPLN Ryan, Mike, 16471 113th Ave. SE, Renton, WA 98055 Scharer, Karen, Project Planner Ms: Oak -De -0100 LUSD/CPLN Scheffer, Beth A, 16463 113th Ave SE, Renton, WA 98055 Seattle/KC Health Dept., E. Dist. Envirn Health, 14350 Se Eastgate Way Bellevue, WA 98007 Townsend, Steve, Land Use Inspections Ms: Oak -De -0100 LUSD/LUIS WA St. Ecology DEPT/WQSW Unit, Linda Matlock, PO Box 47696, Olympia, WA 98504-7696 West, Larry, Geo Reviewer Ms: Oak -De -0100 LUSD/SDSS Wilkins, John, 4841 California Ave. SW Seattle, WA 98116 Staffrpt/masters/PLATPMT.Nov99.doc - 9 - 13 Y.3A $ °�<pF ---.----------- 200'. A� m� 22 ... �-- co T9ACT 'C Jq. Ih IkGkE55,�ic�so5.rtk•�TIUT'n Ota. I a g_ 113TH AVE SE_ ti + r - -- ------7 A- Twvs, o IIII; rn, m � G I�� c 'a V 7- 0 0 m N III A 4-m m7r mz zIIJ� fll SC� C� A0q Q� MOT m 0 4 z N I N W Z 3 r----- rr r {Y o 5 ... �-- co T9ACT 'C Jq. Ih IkGkE55,�ic�so5.rtk•�TIUT'n Ota. I a g_ 113TH AVE SE_ ti + r - -- ------7 A- Twvs, o IIII; rn, m � G I�� c 'a V 7- 0 0 m N III A 4-m m7r mz zIIJ� fll SC� C� A0q Q� MOT m 0 4 z N I N W Z 3 r----- rr King County Oept. of Oevelopment and Vnvironmental Services Lend Use Services Division 900 dakesdals Avenue Southwest Renton, WA 98055.1218 Plat Dksit Y and Dimension Calculations PRELIMINARY SUBDIVISION WORKSHEET RELATING TO DENSITY AND DIMENSIONS A great many ordinances play a role in the creation of a subdivision within King County. Determining the allowable density, maximum density, minimum density, and lot width on a piece of property can be confusing. This worksheet will assist you in correctly applying specific portions of the code and will be used Yo deterutiae if a proposed plat or short plat meets the density and dimensions provisions of the King County Zoning Code (Title 21A). This worksheet is prepared to assist applicants, and does not replace compliance with adopted local, state and federal laws. Preapplication conferences are recommended. These conferences help to clarify issues and answer questions. They may save you both time and money by eliminating delays resulting from requests for additional informa- tion and revisions. You may call 296-6640 to find out how to arrange for a preapplication conference. DATE: `J — '3 _99 NAME OF PLAT: �! L 1�/_ I N S W b D Q FILE NO.: COMPREHENSIVE PLAN LAND USE DESIGNATION: rN �=" L. tr RE5 ,rZONIlJG:9 �9 2.6D COMMUNITY OR SUBAREA PLAN: 4 0 s C_�r+✓k If more than one Comprehensive Plan Land Use designation or zone classification exists for the property, show the boundary between the land uses or zones and the area within each on the preliminary plat map. If a single lot is divided by a zone boundary, transferring density across zones on that lot may be permitted subject to the provisions of KCC. 21 A. 12.200. Please complete only the „apglicabic t?ortiorts of the form, (Note: An example is provided with calculations shown in parenthesis for illustrative purposes. In this example the area of lot is 9.51 acres, has an Urban land use designation, is zoned R-4, contains a wetland, and is providing the recreation space requirement on site.) 1. Square feet in area of lot: (c, -7 o & 414,255 ) 2. Square feet contained in sensitive areas and buffers that are required to remain undeveloped, except submerged lands as defined by KCC 21A.06.1265: _ts" ( 9,025 ) 3. Square feet contained in submerged lands as defined by KCC 21A.06.1265: =e__ ( 0 ) 4. Square feet, on verimeter of project site which will be required to be dedicated for public rights-of-)kay. =L= ( 13,200 ) 5. Square feet within site which is required to be dedicated for public right-of-way in excess of sixty feet (60') in width. (Only right-of-way beyond a sixty foot wide road section): 0 ) 6. Square feet contained in stormwater control facilities other than facilities which are completely underground, including but not limited to, retentionidetention ponds, drainage swales and setbacks from such ponds and swales: --�� _ ( 30,840 ) 7. Base Density in dwelling units/acre (from KCC 21A.12,030 - .040 tables): 4CZ,E ( 4 DU/acre } Maximum Density in dwelling units/acre (from KCC 21A.12.030 table - only required if requesting to use the density1 centivc and/or density transfer provisions of KCC 21A.34 and 21A.36): ( 6 DU/acre ) 9. On-site required recreation space proposed. (See KCC 21A.14.180 for on-site recreation space requirement. King County has the discretion to accept a fee in lieu of open space per KCC 21A.14.185.)- ( 14,430 ) r41/Mau l sann.Navir l at Dana. cal Jun 3o, isss• iiistaxY4j A/A�L*� MOJF Z Page 10 DENSITY AND DIMENSION CPICULATIONS I. Site Brea (KCC 21A.06,1172): IF] The site area is the square feet in area of the lot less submerged lands as defined by KCC 21A.06.1265, and less areas which are required to be dedicated on the perimeter of a project site for public rights-of-way, (07, QG6 square feet in lot square feet in submerged land square feet in perimeter rights-of-way b? 0 '!� -Ff" j arJe5 site area in square feet site area in acres * Example: 414,256 0 - 13,200 401,056 square feet 9.2069 acres (*Note: convert to acres by diving by 43,560 to complete additional calculations) II, Allgwable Dwelling Units „(KCC 21A.12.070), The allowable number of dwelling units shall be calculated by multiplying the site area (in acres) by the base density in dwelling unitslacie (from KCC 2IA, 12.030 - .040 tables) I , q site area x —2 base density a _allowable dwelling units Example: 9.2069 acres x 4 DUlacre a 36.8276 (* rounded to 37 allowable dwelling units ) (* `'tote: see below for information on rounding) III. Required On-site Recreation Space (KCC 21 A.14 I80): This section must be completed only if the proposal is a residential development of more than four units in the UR or R zones, or a mixed use development of more than four units and required recreation space is being provided on site. King County has the discretion to accept a fee in lieu of all or a portion of the required recreation space per KCC 21A.14.185. The recreation space requirements shall be computed by multiplying the recreation space requirement per unit outlined in KCC 21A.14.180 in square feet by the proposed number of dwelling units. ?j OK 10 2 3) `CM 2 9 O recreation space requirement per unit x i proposed number of dwelling units recreation space requirement Example: 390 sq, ft. per unit x 37 proposed dwelling units a 14,430 sq. ft, of recreation space required IV. Net Buildable Area (KCC 21A.06.797); This section is used for computing minimum density and must be completed only if the site is located in the R-4 through R-48 zones and designated Urban by the King County Comprehensive Plan. The net buildable area is the -site area less the following areas: (p7 Oboo site area in square feet Example; 401,055 areas within a project site which are required to be dedicated - 0 for public right-of-way in excess of sixty feet (60') of width 7231 5�ov - $— sensipve areas and sensitive areas buffers that are required to remain undeveloped (except submerged land) - 9,025 - -�" areas required for stotmwater control facilities - 30,840 - -8' areas dedicated or reserved as required on-site recreation space 14,430 (Deduct area within stormwater control facility if requesting recreation space credit as allowed by KCC 21A.14.I80) - regional utility corridors 0 - - other areas, excluding setbacks, required by King County to remain undeveloped 0 net buildable'area in square feet 346,760 sq. ft. ` e L{ kWnet buildable area In acres * 7.9605 acres (*Note: convert to acres by diving by 43,560 to complete additional calculations) F41/R�uf�snn.lirr\P1�CR�M1�Ci1 04M 76. M3S 11s%6*m/d) Page 2 DENSITY AND DIMENSID' 0 ALCULATIONS V. Minimurn Urban Residential Density (KCC 21A.12.060): • The minimum density requirement only applies to prop.-rties designated Urban in the king County Comprehensive Plan and located in the R-4 through R48 Zones. Minimum density shall be d=rmin:d bymultiplying the base density in dwelling units per acre (from KCC 21A,12.030 table) by the net r ildable area of the site in acres, and then multiplying the resulting product by the minimula dzt5ad p rcemage in the KCC 21A.12.030.A table. base density x net buildable area x min.. density ` min. dwelling tuvts re Example: 4 DU/acre x 7,9605 acres x 859 = 27,0657 (* rounded to 27 thin. dwelling ujaits ). (* Note: sce below for information on rounding) VI. Maximum Dweiliny, Tjrii(S Allowed,- This il w d• This section should be completed only if the proposal includes applicad estdential density incentives (KCC 21A.34) or transfer of density credit (KCC 21A,36). M density shall be calculated by multiplying the site area (iii acres) by the maximum d i to dwelling units/acre (from KCC 21A.12.030 - .040 tables). site arca x - maximum density maximum dwelling units allowed Example: �9.206res x 6 DU/acre — 55.2414 (* rounded to 55 maximum dwelling uxits ) {` :see below for information on rounding) VII, Rounding; When calculations result in a fraction, the fraction shall be rounded to the nearest whole number as follows: ' 1. Fractions of .50 or above shall be rounded up, and 2. Fractions below .50 shall be rounded down, (KCC 21A.12.070) VIII. Minimum Lot &Fea For Co t ti n: Except as provided for nonconforron ces in KCC 21A,32: A. In the UR and R zones no construction shall be permitted on a lot that contains an area of less than 2,500 square feet or that does not comply with the applicable minimum lot width, except for townhouse developments or zero -lot -line subdivisions; and B. In the A, F, or RA zones: 1. Construction shall not be permitted on a lot coaWning less than 5,D00 square feet; and 2. Construction shall be limited to one dwelling unit and residential accessory uses for lots containing greater than 5,000 square feet, but less than 12,500 square feet. (KCC 21 A. 12, 100) lx. Lot Width: Lot widths shall be treasured by scaling a circle of flit applicable diameter within-tbe boundaries of the lot as shown below, provided that an access casement sball not be included within the circle. (See KCC 21A.12.050). 0 S4 f n� 0.- 4a wyN C+w yy1�yy , for ror■ �ww�rt�r ��l/K.0 l�.nn.Nw\h l.�Wn., C.l ,tun :C, Y►!i••�i liL�d/!� Page 3 King County Department of Development and Environmental Services 900 Oakesdak Avenue Southwest Renton, WA 9$055.1219 A9wWJNWI A{uVnkWWYE August 8, 2000 John Wilkins Mel L. Daley, P.E. 16613 113`h Avenue SE Daley-Morrow-Poblete, Inc. Renton, WA 98055 726 Auburn Way North Auburn, WA 98002 RE: Wilkins Wood Subdivision SWM.Adiustment Request (File No. LOOV0040) Dear Applicant and Engineer: The Land Use Services Division, Engineering Review Section, has completed review of the adjustment request for the Wilkins Wood subdivision. You are requesting approval for an adjustment from the 1998 King County Surface Water Design Manual (KCSWDM) Core Requirement No. 1, Section 1.2.1, Discharge at the Natural Location. Our review of the information and a site visit provides the following findings: The proposed Wilkins Wood subdivision is located on the west side of 113th Avenue SE at 16613 113`x` Avenue SE. The 10 lot, 1.53 acre, proposed Wilkins Wood subdivision is filed under Land Use Services Division (LUSD) file number L99P3010. The Wilkins Wood subdivision is located in the Upper Soos Creek subbasin of the Soos Creek basin. The site is subject to the 1998 KCSWDM with standard Level One Flow Control and Basic Water Quality performance requirements. 3. The rectangular site is oriented in an east -west direction with a Iocalized high point in the center of the site. This high point diagonally divides the subbasin in two parts, with subbasin A sheet lowing to the northwest and subbasin B sheetflowing to the southeast. No upstream flow enters the site. In general, subbasin A sheetflows across the north and west property boundaries toward the private cul-de-sac of SE 166th Place, and ultimately to the east side of 111th Avenue SE where the flow turns south. Flow travels through a 24 -inch driveway culvert and enters an unclassified A-Px(>-) m-e�� ?­, Wilkins Wood August 8, 2000 Page 2 of 3 stream. Traveling south, flow enters an 18 -inch CPEP labeled "E377" and passes under SE 168`h Street through a type I1 manhole. Sheetflow from subbasin B reaches the ditch on the west side of 113`}' Avenue SE and travels south_ The flow enters a 12 -inch RCP driveway culvert that may be a constriction due to its invert elevation. This flow eventually enters a 12 -inch RCP to pass south under SE 168`h Street at the cross street of 113`h Avenue SE. A 12 -inch RCP conveys flow west along the south side of SE 168`h Street until it enters the type II catch basin to recombine with flows from subbasin A. Recombined flows enter an unclassified stream that drains to Soos Creek Wetland #1. Flow then enters the "Gainsborough" condominium complex, Soos Creek Wetland 16B and passes east under I I6`h Avenue SE through a large culvert. 4. The proposal is to collect most runoff from the project site and direct it to a single detention and water quality facility located along the western border of the site. The allowed release would then be piped to the southwest corner of the site and conveyed in a western direction to I I VAvenue SE. A letter of intent to grant an easement in the western direction has been signed by the downstream property owner, Matt Weber. Nuisance flows across the north, west and south property lines would be eliminated. Flows in existing storm drainage conveyance piping would be slightly reduced on the west side of 113`h Avenue SE and slightly increased on the east side of 111`h Avenue SE. The diverted and natural flow paths recombine within 400-1000 feet downstream. Drainage from frontage improvements does not appear to be included in the onsite detention system based on the conceptual drainage plan. 5. No decorative ponds or shallow wells would be affected by the proposed diversion. 6. The Level One Drainage Analysis identified a potential restriction with the proposed discharge location of subbasin B, which flows south along the west side of I I3`h Avenue SE. Based on the approval of this drainage adjustment, released flows from this site would not travel along this drainage path. Although a drainage complaint was registered in the downstream direction of subbasin A, it was not conveyance capacity related. 7. A consolidation of facilities for the proposed subdivision will be more economical in long term maintenance. Based on these findings, we hereby approve this adjustment to allow the diversion of runoff to a single facility draining to the west to 111 `h Avenue SE with the following conditions: 1. The release rates for the detention facility will be based on the tributary area being directed to the facility from both subbasins. 2. The volume for the detention facility will be based on all flows directed to the facility at full development under current zoning. The allowed release rate will be reduced by any undetained flows that would bypass the proposed subdivision drainage facilities. The detention volume shall be sized using the standard methods Wilkins Woad August 8, 2000 Page 3 of 3 0 in the 1998 KCSW"DM. A volumetric factor of safety of between 10 and 20 percent shall be applied. The design Technical Information Report shall state the factor of safety selected and the basis of that determination. 3. Water quality facilities must be sized based on the entire proposed subdivision draining to the facilities including any required frontage improvements. 4. All onsite or offsite drainage facilities must be located in a public right-of-way or storm drainage tract dedicated to King County, S. Additional storm drainage requirements identified by SEPA or the plat hearing review will apply to this project. If you have any further questions regarding this KCSWDM adjustment/variance or the design requirements, please contact Mark Bergam at (206) 296-7270 or Randall Parsons at (246) 296-7207. Sincerely, 4 P�� Pete Dye, P.E. Acting Supervising Engineer Engineering Review Section Land Use Services Division Don Gauthier Acting Site Engineering and Planning Supervisor Building Services Division cc: Curt Crawford, P.E., Supervising Engineer, Local Drainage Services, KCDNR Randall Parsons, P.E., Senior Engineer, Engineering Review Section, LUSD Karen Scharer, Planner II, Current PIan.ning Section, LUSD Mark Bergam, P.E., Engineer, Engineering Review Section, LUSD - I I I - ko 3'- H IGH CKERY MAX. )TL. SHT. 9) I Z' t_ _.. I , I p, - w � I I - .. . -V .. .,�.. � . ?. I . .1 . I - \ - . � � I -1 . . . \ I .. \ F . I I . � . \•- .-" `� . 1 ;4 , " ~.`\ -1 . 11\. . , _. 1%, I . \ 1­1­1_�-,� ':�' _' __ - - -, ­_'­,�,:_ ' , . - L __ - - -_ �­_,L. I - , - �:_.: ­,_� ­'�_,�,_",�:_.__.__ ­ ` I . .. . I � �­ , ,: - I �.� - I tx, NL �\ . 11" � 1� . . : `­ , I , lil 41- . . \ " . }.,:, .., I , 11 . _ � ..� . . , I . 11- � s� - E�,�r - , tlll� I 1, I . ,io. I , -,l , . .� 161, V�,,, - ii , . . ♦ , I �� � . , � .'AT . . � . 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I 1 5 � -0 .-__�11,111" .... I ..... 3,695 SQ. FT. ............... . .....'' / I . EX. CHAINLINK FENCE .� . Al A . '%'..*.V.*... :, I GRAPHIC SCALE - .. . . ... 1. I ...... I . � . CB No. 7- TYPE I I I . .(.*.* .............. / . . . . - _., . �� i :, .....111'1__� � CB No. c' - TYPE I . * . .'............. I ... .*.,.. j . 1: , - x 20 0 10 20 . 40 STA. 4+72-080 11.22' LT. 89-29 1� , !* 4 1 . . . . . . . . . . . -, : � .1 EX. WIRE FENCE . I .. . .... ... I ..... . � . w, . : .. _ I ____________ I - " � . I THROUGH CURB I . . �� m . - . 11 ,�' - . �111..�! GR.= 472.40 . . / 111111 *_� \ u LET . ................ ROLL -1. I -.-//- 11' ;,. .� � '... i - , , , ''WATERv.- - -, I'. I .11::' �, . / \ . � , . .. .... ___ .. , . 1 41, �,.,�li.� I.E.= 469.40 ­ .. STA. 10+29.67, 11.04' RT. I i ..=:.-;,\ EX. CONIFEROUS TREE _1`1�� _.4 .$ ... ..... _'_r:�". / -.-- TRACT ENTRANCE . \\ . ( IN FEET ) " I , / 4 . . . PAINT 1\ . 1. N .... -_ r%0 q '' '' .' , .. y . 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I ............... ..N. * .� . . _. . ­..........'............. ,CB No. 8-- TYPE I . _. \, - � q e_w�2�1, . , ' IN. * , , * , * , . . . . . . . . . . . . . . . . . . . . . . . . . . . . _-, .. -1 . . I . . . . . I I . . . . . . . - of �QPE . . . . I � .� - . . . . . . . . . ._� . . . . . . I - - - - - I . . . . . . . . . . . . I . . . I . I q ....... bV... ­­­­`­­ , , ''., , '' * ............ * , , .... ........ '15 ..... � ....... � 1 R .. ..... I ................ . . ............. f, ..... STA. 4+71.869 11.22" R : . . '..... ..... - .. � ...... .................. �bl, , '' I .. I � . . . ........ THROUGH CURB INLET - . � , I I ........ � .... ­ � ... - , 1. , ... � - i\N .. 1. .* . ...... ! . .0 ..... . ... .................. � . I . ....... . "I GR.= 472.41 1 ... ... I - - - - - -22-lLF 12 .,.,, - - - - .1 I , v 8 ....... ...... _.. � . , , 0 . l'.*-_-,-V.,-tb.. .... STA. 10+,29.67s 11.04' LT. �, �-�,l I ........ I ....... 3 .__1 ­ ....... f.:........., ...... , ­­ ...... - .�. I ....... - - .... - • .. . ...... ...... I■ NEW TYPE I CATCH BASIN 3,784 SQ. FT. ...... * ­­ , I.E.= 469.29 .__l .. '' - .. � , .,. @ 7�427o, .%, . . I . .... . I I , 0 ! ... 11 .... I ... .... ­ - I ........ . -_ I �. . , .. ...... I .... 47... . . -. GR.= 46993 1, . I . -1 ..... I .. ...... I . .......... . ... . , I I.E.= 465.40 I.... �_:,_. . O ..... " 316 5 8 S Q. FT. I- .q.... ..*..'J....", ",*.V.*.*.'. ....... . . .. ...... 19 q I ........... ... - ....... V-_... .., C . . ... . . . I. - I'v., 0 .'.' .*.*-* I , .. '' _ .... . ...... ...,.%%,.�.* I. "l I.. C) I � ! ......... ­ ......... ....... ­­­ . I *0.' , , * 1 11 . .... C Z. . ."k,"." . .NEW TYPE 11 CATCH BASIN , . ....... I . .. .­. - '' , .- . ....... * , V., I , , '' * '' *..... -,.*-V.,AV'V,v'-' l't ........ � - ........... . . I * .. . .... I , . .,.,.. .%.. I L.�� . ! ..... I . I ....... V, . I � . . I . . . I ....... . - 'i ... . ...... 4 - i 6 . I i,:__�: - . ......... . 6 ............. 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Arls - �_ . ......... _� � . I � ............ . - \ 0 .. I ......... . �Z . ........ ......... i''. 1. 0-11 . - � . ......... V) STORM DRAIN FACILITY " I..... - 14 I - - - ............... ­�.. . ..., 0 . 1, N .1 . . ......... I 1. . I \ _L - I '' - - ­* . .. ... l- I - •/ - i % . I � I ­ ...... ! .... ... - - - , - - - - F�Ql 6,708 SQ. Fr. . : . .. % i N (�M SHEET 10) .......... I ...... , - ...... ,,� OEME I " )) R ' - -t .1 , 1. I - - - 1111,1"', a::�._ . . r � .. \ �ffi� mmmmw� ammommmom lmww� 4�ffiw� ­ I , 1. . ()__ . I .............. A::.-:.::::�-, - --I-. \1 ____l .w. I -111, .. bw.S�� 4 ." 2 . ��l - i .... .. I .,� .1 __� 0 474 1 . . .... I . � - \ . .1 , 'fRA-VEL .... . " .. 1. - 1*� 1 his ­ , ......... .,. 1_". . EX, (7 ' .'...".) I Cl) 5' f"R � I' . `,'�� :� -.�-,- - ; , , \ '' * ­ ....... ..... .. I . . % 10 ! ..... . . � . DRI I VE W AV\ ...... . � . . . ... ... ........ ...­. . . , N-1 77C77 I . ....... CY) I I . , .,. * IV., � , . ........ _ . . .. I . . �11\ . . 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I , - � , i . . . , "' - "",-, . . ''''' I . . NS TO THIS 1: T . . . . . . , . . . . . I . . . . . . . , , , - ­ -- � * - . . I . . . , -;�. . . . . . . . . . � . . 0 - - - - - - 1, - , .., .: - .: .. �,--* . , . , . , . * . , . I I . . . . . . . I I . . . , . . 11 . . . . . . . � . . . . I � : . . . . . . . . . . .; . . . *.'.'.'.'.'l .. . . . . . . . . �01a� ,.,.",:. ..-., , -',,��..' . . . . . . . I . \ . te) . , 1 16"' FIR / ___� 11 � @ , 4i , .. - / 4 .. * , "I ...t.7. . ....... ,�.% ... I .. .. - 1. " ­�*".-.1-:...�.;! . I . PIP8\ PRIOR TO '- - - - I - '. ....., ..... � ................. __l . I M LO N _.1,li"--'.l%'_ * .0 :32.-.- - - - - "� . ....... ...... . -11 ..-I � 6. . -.1. 20 ..... � 1.1 . A" ' " - .• . - -�,-,5; -- - / . - 'LCFlq . I - . . . , . . . , - . - . , . . . . . . . . . . . ..... . . . . . . . . , . . . . ........ . . .... I . I . I . I . 9 11 _1�1_�" - I --,�z - ,--�,:-,.', - TYPE 11-4811 � - . I _. I I'' 11 11.1.11" . . ..........V.V,'......., , :-.::..:.,.�'.:..: - '4 -,\- In n _z �� I ) " ., .-�r* - 1 .8.... . I.V, P CB No.11 ........... ­'.... i. - I I ....... I ............. 1--.1-v ...... ... T\- \\ -\ ­_... .. . . It.6'LF. - - STA. 24+61.79, 18,19 LT, i I NT. CAN , -_ . I .,.,r ­ .4 % 1. *. 1. . 1. I . . .. __ I . _� .. . . .- I ,­_ . 0 -A -5c � . . . 14: NV I . I I . ...... *.� . . , ...... � ... I , * , * ... I'll ....... , \ I - - - _ V. � . . 1. I _­ \� 1. 1�1 l.., .; . � I .1 � _ ... . ... ...... # ................... I t ..... _ .. .*l'.,.,.,.. I ENGINEER IF -PIPE CAN BE B - . I I ........ , � I * I I I I I I I I * I I I .4 . \3 \ X", -"/, 46 - .. 0. . . . ..v - ......... I - - - - I 1__�" I ��f,i,e ?, �_�: i __� . . GR.= 468.14 - , I, I .. . I 1, . \ \ _", 1� - . - . ..... � ..................... I . . . - _., / .... '", , . . . I ;�i. *� + I I ' ABAND(9\lED.' V ._:4 3: . . . I �­ "I .., I ...... I T. -I I I * * . "�_��? ) � 24.3LF 1 "I C E . -!':..�- -'14 � ­ � ­' , , '' ... - . . .,.,.v:.,:. -:,-I-.'-- - .......................... I . ! .. / .. ..... I - - - I ..... I F ,, -, � I . - - ......... . � ......... ­ . . t:� -il ... I .......... .......... X .. . - . . .. � ............... ..... , 10 ) ......... - - I I.E.= 463.36 . A ­ . I .... - .\ . .. ... I .... . . '........ . . . . - '.... ____ 9 8. 13 Z�w L . . ............ � . - I . ..... .... . . .',��... - - .,. i... � ..... 20" L!�� . _.- , ,� - � -�, I ........ I . :_� I........... I _,�.,. . . � ,-.-. - X. GR .. " . � ....... 1. Pt:&�;, . - - - - ."!. - I . L I . - .... .... .. � . 4 40 * *` ­,�i .. � �1,. I ,-- IGH F 0 ........ . 1� ....... ..... . I ...*..V.l ' "I ........ .... * VA �� __ . _. I .,: " ` .-,-- 9* � �,"' \ - VEIL INT i. . . .... . .. ..t ­ I - .1 30' .., 1. . , . . ... ..... . 1.1 ? O,e w, -.2i.14.- . .. ­ � 2i.F 12" LCPE 1.82% 11 . .. . .. .1 . 1. TYPE IL � -'.-`-`.-.­... ze- - __ w -'­" � .,. - . /-% . ........ I . �'. I— . . .. ........... ....... CB Nc. ... %r _�i , i -i-.".... .__ ......... I ........ I - I q 1% � : -------------- .. -_ .l..., .. � \. .... j. - . . . : A ... .. � DRIVE ­­­ � . .. . I 1-1 _� . - -"* 1 4 I ...... .. . . � I: Ilk �_ . I I - I .n . ......... . ... .. .. N� ............ , I �11.1: _. )� _­ -_ ,....� I . . ... . . . . . . . . , . . - . . , . . . , ..... ..... ...... . . _� .. .,: i. . . . . ... -_ I , ", . yl I \ � .\ .. ..... . , . I I . - �:� - ____ ., 1- .1 ....... - �1. . . L . ......... . I ....... STA. 3+46.6 q ,,3�9.43' LT.'' . _... ..,. ... - - _� �:� - . '''' I , L EX. CULVERT r - . , � .. ....... . --.4-1 � . ...'.... .......... * , 4 .... � -7 I- - 4, - .. I �\ �/ . . . . . . G , � .� . I . I . & ., . b. 10 . - ....... . \ . ...... �`::-F ':GR.= 1472.23 ­,�, ----._-'---­ ... * "\-� " .. .4. , . � . ­ ... . I.. , -11 al 44 - If. . I . I .... ......... I . . -0 I \ ... - ..... AUK I .... 4' 4 . I I...v...% .... CONC. ExrRUDED . � ... I ...... :,I .. .... . .... . .. . I . . . .-I , ..... I ........ ....... . 1.�. 1�-, .1 � .1 1. . . 4 1 � . . .. - , - i:' ll,� I 11 . '' . I . ........ . . . - I - . , 1'� , I .4 A - . . 1. "... .......... I %'�. - .. r, " 1. I - � \ 10 � \. 4 : � , - A r% . . . . . 4 . � I 4 ,a' " - . . . . ... .... 12" CONC .. \ A ........ .. . I.E.= rTW8.59 >'_V_' ".'.'.*.'.'.'.'.'.'.*.'.'.*.'.*.'.'. - 4d, I .*-.4 4 I . . . ....... . - ......... CB No. 1 ---TYPE 11 48", .- __ I .. CURB . . �. V.1.1.'.... _ 4 ............... 4''... ...... �.Q. ................... . 0 � , ­ ... . - , . k I P ... � I \ lr I. .4... , , - r .�......... .............. I ............ - . I .. ; I ....I........ .. .. .- I . . . IE=470.11 / W/ 1' CUT , 4 096 SQ. FT. ... , , ........ 1 '019.,. - _��� _." ... :I:-:-:,- - .. - ... . . I--- I , . t I . 1. . .... .0.................. ­ . ­ I I ---- - ...... ..... ....... . I . I �. 11�4_11 1 ' I . . ........ . . . .......... 1, .. 11 , . . - . I . ­ ... .............. .... 1. ' .. .... ET . I - .., . , I . ......... ...... - - - - - ­. ...... I., ................... _ - - I I. , . . .11 .. I "I I . . � - - .L. 'ErVERY 1 01 (TYP.) . - ....... , , ­­ . , I ..................... �;��_ ' . . �. 4; , t" ' 1, ...... .. ........... ..... I 22.4LF 12"' LCPE' .' .... '468.' .." . ... I ;_; % 0 - -- . . 1, il _ .................... � f ........ .. 1. .. t. o "I,--- , \ .\ '' . . :�l "'I THROUGH CURB INLET - * . _. ( ­­* ......... * ''' -0. _.�._._, .......V.,.,.,Q,.*.'....,... I _...... .� 1. , -1 I ..... � L . ..... . � STA. 1+39.371 _�',�,�,�"'ii-,- I . ;. : �:-1-1.v "I't'.1 ......................... - ..4 .. � ........ ............... '' * .......... ­ ........... ­ * ... ......... I%J- , , � 10.351 R T. � " ; -A I � . .- I '. I ......... . . O' ''' I '. .... ...... . . ......... . . .. � .................. .... I I... I - ,­ � .. .. . .N.-\ .. . . I 11 . --A w t'.. �'... 1. .. .... ... . I _llk�,� , L . _. " _r . �� , , _ . .., - 7 i � _�'i., �. 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T.� %­ � . ­ , , , L_ .- - 25&F. 712-�%' I E % 9.88 ,��A , t- . ......... I � ........................... . 4 , . %t_­.� - ,-, 474 ___l - . O... __ ............. I... ......,.'. _­ �10 I ROL-M .... - - - t ­�.' .'-L--\. - - _� � !i.��,,_..,, --.-e- I . ..... .. -.4 -_ ..... . I ... .... . `4 - , - -_ . : � .� l.E,=A62,23 � -, A EX. SSMH IPA . ­ . , .. _� ......... .................. ... .. 11 I _!S:� -v, .. ..... I ... ......... . , , � - �� - .. I . ;.--i ,.l.. 1;���. ., . - I- - . lh',�' *r. "I . 'L., .1� � . ,,, , .... '. . -1 . .. .... .... :,*'',*,*L,* '' . I., ., , -- . I .r�" � I __ � _... __ I . I - __ - .. . �_�N = Yu 0. ll�. I � : k , I a . .�7 � ___._ " - ftvwpll� - - � , - .q-'.' , , 1. '. , � * - � I vf� L. . . . q ................. I . . . I j,:� , . ­ . ­ I I _ ­ _--l- - �� , ..,..,.. .... i . .... t- 4... - I ...... ........ I ....... ` I I � , , " IE :, 1, . . \ - __ --' 1_,��_., - . , - ­­- 16.4 ... ... I ... ... I 1. i - -1 I . . . - � , ,.,. � ..:. - ., ll,_m;,.._,, 22- -*I'.-------- '*"'%%'*-'*' , , ...... ....... (SEE D' ) IE =464.00 -__k -*'Ab _ - -�" �,��-.,L 11 '' ) RIM=472.32 . - * ........ ­­* ..... cN .... . .... ............... - 0 . -6m: &.,o' 7111".N. I . 1� � t. �,.,_� I I " LF 12 L ­­ ...... *­!�`* * "'* ..... * ..... .f.,.,.,.*..,.;I'.*.'.'.'.'L'.'..'...... I '.'. . . (I '. ...". � '__�'. .. ........ ­ ­ �... ­ 1. . . . . "I L , ', "' �'- L , , 0.,lp, �4 ...... ..... ............. � .................. 1. ­ .......... ..... , . . . ............. ... ... , -, ,­ _,�. � , _1� , k -I ., L ­ . * - .... . ..... .. ... ­ r. 1. I ... . , �,,� - - k . 1. ' _2f��- - . 11 .- .1 .1 ks . --dmb--- .- . I" I I I..., I I I ...... . .............. . . .... \�:'l _ - ,%, .. . . . '. I S __ � ",4_7.� :,- . . 1. .V.,.............." ............... CPE @ 1060/wo.,.,.,.,.,..'.'.'.'.'.'.- ....... ... ........ .. ... I '. . \ , , . , I , ­-, -> - ..., " ..... ... . . ....... ... � .......... I . . ....... .... I . .... ... ........ " -i.( .... 0�..V.,-,, I ,�:4 WM -, \ I E(N &' )8"= 1.37 lllll��._ -iow - . ---*---*I,. .l*_z . 1. I ........ I 1.�, 1, - � . : .. . w _..__�"u ..v " - .l......... fAmpp"w"w" -.40 ..... . "' '' * '' � ", '" - 4�.Zl-_­ .- - i_'� I., ". r .... . . . . I ....... .... - I .... I ... ... . . ........ � ..... 1 1 5.71LF LCPE @ .=...''.. _ - sk - 12 ....... , - - .__ ­ I . __ - __ - ......... I * * %. , . - . _.�. \ ..m_-"�.:_:A4,,. I I � - �, _ t,_�:q% , 1% , ___ - __11� 7 " 23?� __ =::�� : �i� ...... . . .')'L� L ' - �, � , " , 1 4" CHAIN ..1; -_ \l__l __----- . - , M YL C * -, - 0 -----�d�ll - L. '.. .... I .'.V.V.'. 4 I I I __ - �� ___ . ... 'I .1 ,LINK FENCE I I I 1 'I -) �� "... '. _ ,r,- I . � I -uz , I up u __ - __ _0_4� . I - .., . ­ `1� EX. SSMH • I . � ,� '. ( 1 ­ . .� . ___ - - D %�, - �­ ' * , � .1 .� .., '­ "�;NPE_i_ I- ­ __� / I &' '' .. ...)L....... , . 4 , .. 1 - ,r, RELOCATE . . - _.�!� I(- - . / 0 0 N. Vis; - __1 - I �� ��' ,,, TO PROPERTY LINE . . J T- _�fl 'GH _f=KEW,-M*K-- - � - .e,�.,,., - " _�# - k, %­ - - I / 'N.88 � / I f- :.c Cu ?S.�.&%/ � / 1. 3�5_90T Z � �4. . I RIM=468.53 L ... : _. . , __- 'I-, . I Z- '. I 3.'ILF 12" DI , I //l . -- toI� I i . . .1-1 - �/�__ ,�,�;;----____.� . . .-. 12" C ,,,,, I N 4 , 11 .� �.. �_r) . _� ___ I 11 N .-,/./ "" ,� \. - . - f �l . . . 56.71 . __ ." 11 . - __ , --I ;,,--,; ...� I . S � ­ , . � I L I _. . I . .., (SEE , DTL. SHT. 9),\- _� , '11�/ I ­ . . .. . . . . ..,-.-..-... I 0. m - , - 7 wo IE=465-16 i . �,_ 1, . . . I . I., .. -­­ -� , . � STRAW BALE �(TYP.) i ­ . . % '. .. k . . . . I . .. . .. �� I . . 1�a � '' '� � ,,�._ . "... I . EE DTL. SHT. 9 F - .. \'� i . ­�­ I CB,No. 3- TYPE I . CB No. 4- T E I II -IRO GH CURB INLET , 4 1 . ' 1. ., � -a,� � , '\.. -�:_ ) � 4\ . I - . . FULL -WIDTH PVMT. -;; �: ,�l . 4 1 - .11 . ­ .. 71." :_ . . 1, . I , I - `7 I , 3, 11 .22' RT. STA. 1+ 9.56, 15-211 LT. �__�_ ;� , -2 � � I rx PAVED DRIVEWAY STA. 2+54.48, 11.22' LT. �_ STA. 2+54.4 . �. . �v t � \ �up ! OVERLAY LIMIT , 1� 1� .1 .1. :,:= . . I . I I 1 24--00 1 . � �­ I , i - I - ... .1 a -4 4�6 9. E 6 1 1 ! I 1 - ��'ll �, I ­�. . I . I ...." - - 0j... *. .- .. .. 7�,- ­ I - GR.= 469.90 GR.= 469.90 GR.= 467.76 S . '. . -, 11 . '�\ ., EXIS' DITCH ' FS \ . f TA.24+12± I .. I I . � I . I .. . I.E.= 466.79 I.E.= 466.90 CHAINLINK FENCE . ..... \ I.E.= 464.76 \NA I I � I I . . , ,..- .. �,-� .; TO BE, RELOCATED __� .. \ . . I M LO . - � -1. � I ".�/ I Fy,. PA\JFD DRI I . , . . � 1, . � % -1 I . _� � . - I : I � . . ' ' I k . __ __ t�. . ____ '. ___ - +[\ - - - 11 1� 1. _� - EX. CULVERT _�/ . TYPE . . , . , ------- , -,.Zz, . z '11, . , /,\ f -1 1. I I . e /, d - - . - 1\ - I , - _ . X/ ./; / . \� I :,j I I % U 11 . � - -, 30' -1-30 . . ` cjCB `40.\ 1 � /,���/ I /- �V_l .- I . tk ----- 1/z/ /,-�/ /,.,'/ I --I- :�l .1 14, W/S) - - ---- '. I ., -1 __� ; . ___ _,.�.�_� . . ........... �.".-�___________ '__1 k I t_� � . I Ir '"_�k L . . , T, . . . 1�,,__,, 11 12" CONC OLID, kOCKING LID . . � . \ ______.�� I i : I . I - � ; - -I- I I \ _j I . .1 V.. "I V___:_� I 0 I., ,�. ­ I . . . "N .. .. - IE=469.55 . .. I 1 - . 0 1� , L I STA. 26+711,82 14.22" LT. r .�l .1 1. � I ____� . \ . I .� - �. . � - 0 L I . ,I '. . I TO BE,,.,RE,MOVED f - I I 1, . ,_ I .,REMOVED � . . ----,, \N i�: / .. � .. . I .�� 11. 1�.. . EX., GRAY �% , ffil RIM EL 4 7 �30 1 0 -, I I 'A"'. .. I 11. . I .DIRIVEWA \ . ___1 � .,-'v I . ' . I.E.= 46 .59 \ � .o I-, \ 13:� I . "� 7.w.( , .1� ) . ­_ .. I 1\ \ . . \ I .�� " . ,. 25LF '1'2.pl DI . -,� I . .lL . . . I 0 \ \ 1,- I 1. .. � .1 " . - 1� \ I . 61 I . . I 1� . \ . :- , I . . . . I , -, - 0 A I . _. - ''I.,.. . @ 0.68% . W . \ . ! . U) . .,�'r . . . .. . . . _____ . . - I I . I ..., , 17 - i . ..." L. _. ­ •. .. k:_ . , \ L . . I - . - 1� .....� .1 . S: . . . I p � I . � �. : , . B E9 469. L_ , i , . . � . I NOTE I . �_ I I ..".. -lkift : ....... _-1 �� \ I - 1� . 0 ... . . . . . ., � ., I .... , I __ . I I I I .". 1- - OTE: to _ U � . . - j \ . � I 11 - . � I . . , � . . EE S�EET 110'�QR \ -ALL HAVE 1% MINIMUM SLOE AND SHALL BE 6 0 Li . Q - __ IE=468.53 .- 1. ROOF AND FOOTING DRAINS SH PVC L - (n - -1 � / I I I .. ... I - I . I I I=L.. - rl-_ . I -�PAVEDJ WALKWAY \, . \ I UNLESS OTHERWISE SPECIFIED. MATERIAL SHALL BE OR LCPE. uj 0 i [L .- -7 �, i = 113: L)i �, ,.,1610 i __ 0 -IL I . 1$ -- .. ql'- EXIST. DITCH- .V.*!: IMPROVEMENTS .� N I-_ >< I 0 % 246.3±LF 12 LCPE @ 0.67±% .. . \ ­­ . GRATE UNLESS (THERWISE SPECIFIED "I .1. I r__ : 2. ALL CATCH _­ I ; 11 � . I . . . \ 1\ I \ i -� \ ; BASINS SHALL HAVE VANED uj bi T_ 5' SHEEP WIRE FEN I ' . -'\ . z o 5' PAVED 0 _� - �.-j .. \� I \ ON PLANS. z �_ iA -, .. ---' 1. . 1. , _­ ( _j n .. I ­­ . I. . 14 9*10 18.5LF 12"I %r.%413E' I . I . _j >� WALKWAY T-1 \ TRANSITION TO PAVED" . ..... � I 1 I w �,, ­ '. . - I @ 6 0,14 % IT- &, ..L . I_Ai, . I ... �'� .", I . c4 .. -, , L.. ­ I DTL. ..... 0 . I . " . , , .., . : - . . � I . - ___ , � . .. I ... VERIFY EXACT LOCATION i_ ... -�� " : �"� I I � . . , - . - -1. �!.,. - I - , _. � I . - I . "'. IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO FIELD. V� ­ * .1 , I ". " . . ,;�_­__ . , ,�_ �,� � FU L --WIDTH PVMIT. 3. LOCATION OF EXISTING UTILITIES SHOWN ON THESE PLANS ARE APPROXIMATE. 3: (SEE DTL. �­ it I N�.l W ..., I , WALKWAY -,(SEE DTL. SHT. 6) . u uj Ld w z SHT. 1 0) - : � . � �;rll . .. . _ ­­ , �. __ 1, .. 3�: 1 I z I z -0-i . , .. I - �. .. . '. " , 1-1 m. I . . ­ , "'. - . - . !--- ­.- , � - ... I . ., I I , ER IF . . _1 , z. I.: .''L� . - CONTRACTOR TO CON rCT ENGINE . . I -,. I 4WENUMMOOMM' I �� . AND ELEVATION OF EXISTING UTILITIES . _j 11;L . 11 Q�j , OVgRLAY LIMIT �_ ­ . . - RELOCATE FENCE Ll- D:f , % ,. �� 11 . . I Zi X "l, � I . �4 Qdf ......, , CONFLICT OCCURS. . . ui 0- w El . _:�, 36 FIR t V.V. . I . ....... / ST,A.26+12± .. 1 4 TO R/W/ LINE �_ w :;�: . , CB No. 12- TYPE I . . .. I .................... I I i x - I �- . ... . i.� .... . � . z . .. t . ui I , ;::� . ..... �- . _/ _... - . w EX. PAVE z . T _......�.� 30 - ZZ , * �� ___ 4 1 1 . .......... ....... i . / "IV, / lzo ___ - `\,\ F L- N ._��_ 0 RL AY S 0 "_,� ,A .4 7 __�_ � i I � �1"R 1 (' " I I.E.. Ej. /A \ YPT N - ' R ./I '1*1 1* // 17.1 4. THE CONTRACTOR SHALL INCORPORATE THE RECOMMENDi�TIONS IN THE Ce- w \ � I TA. 26+10. l 14.22' LT. 11 � . IT . ... ......... / � u t: I 4�_ . . . ' I PREPARED BY ADaPT ENGINEERING, IfIC.-s DATED MARCH 6, u 10 I �.11 �t �k :: NE-:( .. a SH I I . I GEOTECHN11CAL REPORT PREP I I . '��L GR.- 470.91 . .. .. . . .�, / I ­ ..• .. .. -1 ammmomm qwmm� I- _ . V, e�_ - I- __ I '' '1�t-�-. 2000. 1 __ 472.00 ''I'll - - - - I I I ll� 1 """ . ___ .- 472.00 : -_ ,�. ____ � � -----, ____ __ I REMOVE EXISTING ...- ­­.� , I ". , ., , 4 - " - . it'._ . a - ; . .11 . . i I : i f% I Z.,'� �l '. .. m I , . .1 , , ACCESS TO ALL ROPERTIES AFFLU ILD -1. __--j I.. t.. "" , , k, 5. CONTRACTOR TO PROVIDE CONTINUOUS .� \. CONC. i le .11'' RESTORE STRUQTUFf.,S, DRIVEWAYS, I" . � ­ � ll I . ­­�,3,-:"..;�_t '� .. ,!-,,;� t'. . I .1. 13Y THE 113TH AVE. SE IMPROVEMENTS. \ J`11.1��_`4:� ... : �` V `_ - . . t ." �.-,,, . . 1% / . . .� `.�l . I... -, I. . . .1 -1 I _. ia I '.. , , - I . ; ..�_ - - . � . - . - - 1. . . ,!, . .... . . ; . 1%, .1,11 I , I . . "��_ 23+00 1 1 , � _, . I I . LANDSCAPING ETC. THAT ARE DAMAGED DURING CONSTRUCTONe ��: � , . , , . . .. I . LJ FOR MATERIAL DETAILS I " I- . I I . i � 1, ,"". . -,L I . I � i�� . 1. z SEE SHEET 1 0 %� 1' SAWCUT BACK (TYP.) ., I '�,, .. . : I r-% -5, --,,-,- . . , 4 73 ; I I .. � . I., " . I 1� (SEE.DTL. SHT. 6) , , '.. � -1, 1 �\'1\4 �, D . , 1k1 : . � 0 tiI I I V) ?� � - I 1:�, . , . � ; I I ! N% I I z � , II � , ; . . . :i`� � . ., I I I � I I . ____ "'� - .1 - - -.,�, - , I i - I i :" , L ' MAILBOX INFORMATION TABLE ' . 470.00-- ____N� ME_L00ATC_D_lTCFF_ 470.00 . "\,, I/ .,/--�l FH - I � ! 11 � ___1 , , 11 1 2' DEEP -\-/ " : --'- fs. 'i " k - . '_1 . J I � K I 1. '. , rnx_�, ll��,,, I I!,LVIZ�: I-lu � is I -", . , �, I .EX. 8 WL I'— ��_ .1 . . i .. - ..., - I . _,w, j f ,_ I , . -1 , - I . .� , I , . . - I I ; . I �" - � ". '! I . . � �r 1.,� :,/ -11 - � � I � '­ f- .� :-I- . . I 4 � . 1-11 - . I � 11 � ,.\ . I " , - I . - - 1. _�. I ro . r I -1-1 . . . I - _11� 14 rJ3 I it I .1 . __ . . I : : , . 1 - . i , I - 71Y . . . _.. - ­ � . " f- - �l : ... . �. I . . I . 4L :1� I , ..1� I•...WLa . 1 ' I�.', � I fI / RR T16 WALL REV. NO. DATE DESCRIPTION APPROVEO _ . . I EX. CULVERT I �� 7 . 1_`­_� - - CLIENT . . t .". I . . . . - . 11 .. --� - 12" CONIC . DALEY41AORROW-POBLETE, INC. ­ : � � ,�;`11� I � , r . 468.00-- 468.00 1 � \�\� - " ,­ DREAMCRAFT HOMES . I ,-L I , 265.5LF 0 2.39% , "A " WAY I . , I � 4 1 . ' ­; I 1�1 I ..- - 7, 6 AUBURN , Y NORTH . � .11 . � 1. - . w I . li. '� , 98022 � ��TO�I 1. - 215 EAST MEEKER, KENT, WA 98032 11 I � 1I, . � 4 / AUE30', N, WASHINr,TON �� " I .. . -7))333-2200 ,�FA .:,'(25,3)333-2206 . .. 1) I YARD DRAIN I a PHONE: �25 X: PHONE No. (253) 859-9697 � .. - l O' - HORIZONTAL; 1' = ,,A . SCALE: 1 . . = 1 ' VERTICAL GRATE=463.31 T Cd No. 1 0- TYPE I . , m. . c::) i ,k" I- 1�1 . .1 . '.1 , I PROVECT . . .. . . 1. . .� I I" I 'f , ... . I.E.=461j6.14 , , STA. 22+15.47, 18.9 v LT. = ­ � � - . .. - N , . . - - 1% . � ) ". . ­ , _ ,�, I . , . TO BE REMOV�b , GR.= 463.3± li - . , �. '.1 . % I '-, . ::%,.- �l , 1. .= 461.7± , I I �_ 1 .. - � WILKINS WOOD . ,;O- ,p 132 . % � \ �4- 60' 44 ..- � �. . . 1. 4' CHAIN LINK FENCE . <C' N% - I ENGINEERING - SURVEYING STREET AND STORM PLAN . . i , I " - . I I "I . : I . . ..I- .� I . EPLACE DAMAGED PIPE -C I'li, L LANG PLANNING I v , % IONA L t "' ,� -, 3�. ... . of _i - . ­ . I . . EX. GRAVEL DRIVE I ECTION WITH 12 ( ONC. i n (:-� cD rp c,.J�a te -a .. .1 . DR*N By ASP/VFB ""' lit t DRAWING 03285ENG SHEET , 4 . - 20 '� -, . - , - I I � 22+00 EXPIRES JAN. 9, 2000 I - . 10 � ) APPROVEO DA TE I � 6, 2 0 0 4 , j0'9J U. . � JULY or , � ' . STAMP NOT VALID UNLESS SIGNED 4 DATED �l . MLD 03285 1 . I Ill I - 71 it .. - I ... . .__ Im .._ . 'f , _ I.IPROJECTS10285 WILKINS .. . . . f 1. "I-, elt - . . . � . .. ll�l � . � ­ � I . _? . � I � . .* ! - . I , K, I - � , . . I . .. . . . . . m_ k, [ v ____ -.---- __ __` - - .. _.1-1 ----.-- __ I ... .� - lm­�m. - -I----- -.--. __.. - _ - ­­ - . 1_ - - - :, Z� I I? tl� - , _. _1 - . - ., .- 1-4--_ - , -- - .1 . . 11 . .r.. .- . - __ .--- __ ., 0, � . .__ - ..---.. --..--- - . - .--- ..---- --..- : - _'_ . ­ .. . . . .. .... . . . . - - �:, Lt. - . 1'�lr_ - - ­. - - I - . . .: __ - 11 _. - . - L ';:4 - uj o 14 Q0 z PROPOSED I ! 468.00 -. ----5'-PAVED ----.------- _ 468.0 w w WALKWAY V) PROPOSED (SEE DTL.) CONC. EXTRUDED PROPOSED -w--- 466.00 z .� CURB Q 5 PAVED. 5 PAVED • � PROPOSED 1= w EX. PAVE WALKWAY 468.00 --�---- __-- 1l1lALWx468,00 - � 5' GRAVEL U ww z (SEE DTL.) ! Q 7 LF cn 12" -i Of CONC. SEE DTL. ( ) _Z J oc ® 0.92% ,WALKWAY ! ---- _z J � U ? z w � Q ---,--_----464.00 (SEE DTL.} w PROPOSED 1 w 0�`' r EX. PAVE ! z z 5 GRAVEL Dw z 1 EX. PAVE w = I I EX. PAVE ! ---- 2:1 BEVELED END I WALKWAY w 1 \ I 1 (SEE DTL.) ca 472.00 472.00 472.00 472.00 468.00 -- --- __��..� _�.�._. - 468.00 . CONC. EXTRUDE D w I I E X, PAVE ! CURB � ,�, CON EXTRUDED w CUR EX, 12" CONC .v) > w I w I w ¢ 466.00 -'- -i W w `l' 466.00 - � . ¢ z w z z •-' w J ro Q a w a T W n�' z to 470.00 z --�d-- 470.00 4?0.00 -----r--- _ = ~' ___� 470 00 466.00 ._ _.._ __.. _ is V) _ _�_.�_ �_. --- 466.00 z N I I _z _ ___... - �- w I r r w .J SEE DETAIL W EX. 8" WL v JSEE DETAIL w Z 464.00 464.00 .. e• 464.00 -�-- uj z PROPOSED 5' PAVED WALKWAY CL (SEE DTL.) I C•V n A,/r- ui RELOCATE DITCH RELOCATE x I SEE DETAIL 2 DEEP DITCH I w U ak Ex. 8" WL 2 DEEP SECTION 040 �. 464.00 -•.t.,,.,- �� r, rr r � r EX. 12" CONIC. 464.& EX. 8 WL SCALE. 1 = 10 HORIZONTAL; 1 = 1 VERTICAL ----------�.__-----------.-�-__.__.___.__._�__ ___ _�_ 468.00 468.00: --_ -�---- __ __..___��_.._.___ _._�._ ____ _.._. ____ 468.00 464,00-- 468.00 - 464.00 462.00 �____._ �- -- 462.00 �� B-BSECTION D-DPROVIDE RIP -RAP NEW DITCH SECT, SCALE: 1 " = 10' HORIZONTAL; 1 " - 1 ' VERTICAL SCALE: 1 " = 10' HORIZONTAL; 1 " = 1' VERTICAL / a• PROTECTION 2 DEEP G SECTION � G T`IDN -F ' �•' SCALE: 1 " = 10' HORIZONTAL; - ' / / SCALE- '1," = 1 Q HORIZONTAL; 1 " 1 ' VERTICAL L; 1 -- 1 VERTICAL SECTION C -C � �, = � . SCALE: 1 " = 10' HORIZONTAL; 1 " = 1' VERTICAL / f c3 / /�� EX. CULVERT / EX. C,0CVERT / 19.3LF 12" CONC. o EX. CULVERT +� -n • .r 12 CONIC s 12"/CONC 0 2.59% /' Q �;� / :� Y -� 12 CC /- STRAW BALE (TYP.) M a r o r' -I = 9.77 .- ► IE=468,61=465.24 I.E.-=- 464.74 _ / ~� O� ---► x IE (� �,�. �•• / �� !` ! I !� ~J ,i (SEED SHT. 9) -� ..�/. ---► ♦ REGRADE DIT ti �� ` !� ED-f�----. Q. / ,_,. a _ �-• '� �� I.E. 462.62 ,� REGRADE DITCH - . - ••!. :.•, s � ., , .. , i �� . • • . :• , �` 5 I ••I � .. I r`A � ' � � � � � V � �'7LF 12 V N Ci � � �-�-- ➢-.� cR VEL WAW �� . / P s. �_ /• o (SEE DTL„) : , _ < :� ' Q, -` --�-= -- - -y- ----- C� 0.92 N __ _ ___._ �_ - ,-. , . ` EX.147.1 L 1 . di •---_.. �_ ��- - _ .,�,, yy'_ - / / • • / r Y /,,,._` - •� - / i •. • Z.::_""'""1'^_ :"','-'.T^'�- ^,'.-ter.. - • ;5;. , ,�...--+.� ._�'~�_ l , "'^"'_- f /� /•• . . -W A • '``4- � ,. / r `~, /---�.�,_ - moi% -;..� • . ;. • . �'- - _SEE -77-77 f o / wP�vE[ral:.IwaY D -TL: . • . • . - � �' ' Q ,! ' �► c� o / w a CONC. EXTRUDED �r ' / ` F. �► / w L r�-r ' - M - _ _ __.._ _. B W/ 1 CURB _ o raj a �-. �, ; -n CB No. 15-� TYPE I , _ - �9� / z N x f ,� L _, + . m ---GUT EVERY 10 (TYP.j n --_� 'F. .�. m �� / / �o W/SOLID LOCKING LID Y N_ TEIIIII •+ ., z STA. 30+05.940 18.,6 61 LT. e CONC, EXTRUDED , , / - j °' = N z I- I . OCATION 0 THE BONNEVILLE AND P v TH�.ys� U GET SOUND POWER GR.= 46 8.00± / ,� �- � S Ni�' : � .�, °' n .< cka - x •° 0.2 � 'H T. OMPA Y TRANSMISSION LINE EASEMENTS DEPICTED I.E.= 4fi5.24 / � CURB W 1 CURB � � _. , 0 J / CUT EVERY 10 (TYP.) Min � � I= / HES N IS BASED UPON THE PLAT OF AKER S FARMS NO.6, 0 ` .: z _E 42 OF PLATS, PAGE 15 I i CONC. EXTRUDED CURB L 1' SAWCUT ` M / J_ f �' i .5 WALKWAY �v1ENT .f �� �� 113th �, S,E. PLAN (OFFSITE) , EX PAVE ' CL CGS /' SCALE: 1 "=20' / 2% / n pa0 ' - / 2 COMPACTED DEPTH CLASS B ASPHALT CONCRETE NOTE: SUBGRADE COMPACTION 1 1/2" COMPACTED DEPTH in SHALL MEET A MINIMUM CRUSHED SURFACING TOP COURSE OF 90% MAXUMU.M DENSITY. Axa` to Z EXISTING FINISH GRADE / �� / 1 1/2COMPACTED DEPTH f @ CENTERLINE / CRUSHED SURFACING BASE COURSE W PAVED PORTION. OF WALKWAY DETAIL, 5�. EX. DITCH / � _ , . I:.. S N•T.S. SEE PLAN SHEETS FOR ACTUAL LOCATIONS W470 W C 1 I I EX NG FINISH GRADE W ! `LUG PIPE END I .Z' @CENTERLINE I I ..... J -- WATERTIGHT WITH CONCR I ETE 1 I F 3 i i I I F- EX. 12 CONC. 19,3LF 12n CONC. I .4, 02,599 BEVELED EI�ID � I I 4" CSTC Ln 0 d - .5% i �+-- S' VAL�KWAY `i COMPACTED SUBGRADE � GRAVEL PORTION OF WALKWAY DETAIL N.T.S. SEE PLAN SHEETS FOR ACTUAL LOCATIONS i'. 4 d- c9 30+00 MATCH GROUND SLOPE CB No. 15- TYPE I W/SOLID LOCKING LID STA. 30+05.94, 18.68' L GR.= 468.00± I.E.= 465.24 NTY D.D,E.S, Review Completion DOW Senior r omp et on e JAVS H. SANDER T, P.E. Prov Date LOPMEN T ENGINEER Comments: I NEW DITCH 00 ';:4 - uj o 14 Q0 z PROPOSED I ! 468.00 -. ----5'-PAVED ----.------- _ 468.0 w WALKWAY V) (SEE DTL.) CONC. EXTRUDED -w--- 466.00 CURB Q z_- 1= w EX. PAVE 0 r U ww z w ! Q 7 LF cn 12" -i Of CONC. _Z J Ld ® 0.92% 466.00 - w ---- 466.0 U z w Q ---,--_----464.00 z � r n? Dw z ---- 2:1 BEVELED END w ui RELOCATE DITCH RELOCATE x I SEE DETAIL 2 DEEP DITCH I w U ak Ex. 8" WL 2 DEEP SECTION 040 �. 464.00 -•.t.,,.,- �� r, rr r � r EX. 12" CONIC. 464.& EX. 8 WL SCALE. 1 = 10 HORIZONTAL; 1 = 1 VERTICAL ----------�.__-----------.-�-__.__.___.__._�__ ___ _�_ 468.00 468.00: --_ -�---- __ __..___��_.._.___ _._�._ ____ _.._. ____ 468.00 464,00-- 468.00 - 464.00 462.00 �____._ �- -- 462.00 �� B-BSECTION D-DPROVIDE RIP -RAP NEW DITCH SECT, SCALE: 1 " = 10' HORIZONTAL; 1 " - 1 ' VERTICAL SCALE: 1 " = 10' HORIZONTAL; 1 " = 1' VERTICAL / a• PROTECTION 2 DEEP G SECTION � G T`IDN -F ' �•' SCALE: 1 " = 10' HORIZONTAL; - ' / / SCALE- '1," = 1 Q HORIZONTAL; 1 " 1 ' VERTICAL L; 1 -- 1 VERTICAL SECTION C -C � �, = � . SCALE: 1 " = 10' HORIZONTAL; 1 " = 1' VERTICAL / f c3 / /�� EX. CULVERT / EX. C,0CVERT / 19.3LF 12" CONC. o EX. CULVERT +� -n • .r 12 CONIC s 12"/CONC 0 2.59% /' Q �;� / :� Y -� 12 CC /- STRAW BALE (TYP.) M a r o r' -I = 9.77 .- ► IE=468,61=465.24 I.E.-=- 464.74 _ / ~� O� ---► x IE (� �,�. �•• / �� !` ! I !� ~J ,i (SEED SHT. 9) -� ..�/. ---► ♦ REGRADE DIT ti �� ` !� ED-f�----. Q. / ,_,. a _ �-• '� �� I.E. 462.62 ,� REGRADE DITCH - . - ••!. :.•, s � ., , .. , i �� . • • . :• , �` 5 I ••I � .. I r`A � ' � � � � � V � �'7LF 12 V N Ci � � �-�-- ➢-.� cR VEL WAW �� . / P s. �_ /• o (SEE DTL„) : , _ < :� ' Q, -` --�-= -- - -y- ----- C� 0.92 N __ _ ___._ �_ - ,-. , . ` EX.147.1 L 1 . di •---_.. �_ ��- - _ .,�,, yy'_ - / / • • / r Y /,,,._` - •� - / i •. • Z.::_""'""1'^_ :"','-'.T^'�- ^,'.-ter.. - • ;5;. , ,�...--+.� ._�'~�_ l , "'^"'_- f /� /•• . . -W A • '``4- � ,. / r `~, /---�.�,_ - moi% -;..� • . ;. • . �'- - _SEE -77-77 f o / wP�vE[ral:.IwaY D -TL: . • . • . - � �' ' Q ,! ' �► c� o / w a CONC. EXTRUDED �r ' / ` F. �► / w L r�-r ' - M - _ _ __.._ _. B W/ 1 CURB _ o raj a �-. �, ; -n CB No. 15-� TYPE I , _ - �9� / z N x f ,� L _, + . m ---GUT EVERY 10 (TYP.j n --_� 'F. .�. m �� / / �o W/SOLID LOCKING LID Y N_ TEIIIII •+ ., z STA. 30+05.940 18.,6 61 LT. e CONC, EXTRUDED , , / - j °' = N z I- I . OCATION 0 THE BONNEVILLE AND P v TH�.ys� U GET SOUND POWER GR.= 46 8.00± / ,� �- � S Ni�' : � .�, °' n .< cka - x •° 0.2 � 'H T. OMPA Y TRANSMISSION LINE EASEMENTS DEPICTED I.E.= 4fi5.24 / � CURB W 1 CURB � � _. , 0 J / CUT EVERY 10 (TYP.) Min � � I= / HES N IS BASED UPON THE PLAT OF AKER S FARMS NO.6, 0 ` .: z _E 42 OF PLATS, PAGE 15 I i CONC. EXTRUDED CURB L 1' SAWCUT ` M / J_ f �' i .5 WALKWAY �v1ENT .f �� �� 113th �, S,E. PLAN (OFFSITE) , EX PAVE ' CL CGS /' SCALE: 1 "=20' / 2% / n pa0 ' - / 2 COMPACTED DEPTH CLASS B ASPHALT CONCRETE NOTE: SUBGRADE COMPACTION 1 1/2" COMPACTED DEPTH in SHALL MEET A MINIMUM CRUSHED SURFACING TOP COURSE OF 90% MAXUMU.M DENSITY. Axa` to Z EXISTING FINISH GRADE / �� / 1 1/2COMPACTED DEPTH f @ CENTERLINE / CRUSHED SURFACING BASE COURSE W PAVED PORTION. OF WALKWAY DETAIL, 5�. EX. DITCH / � _ , . I:.. S N•T.S. SEE PLAN SHEETS FOR ACTUAL LOCATIONS W470 W C 1 I I EX NG FINISH GRADE W ! `LUG PIPE END I .Z' @CENTERLINE I I ..... J -- WATERTIGHT WITH CONCR I ETE 1 I F 3 i i I I F- EX. 12 CONC. 19,3LF 12n CONC. I .4, 02,599 BEVELED EI�ID � I I 4" CSTC Ln 0 d - .5% i �+-- S' VAL�KWAY `i COMPACTED SUBGRADE � GRAVEL PORTION OF WALKWAY DETAIL N.T.S. SEE PLAN SHEETS FOR ACTUAL LOCATIONS i'. 4 d- c9 30+00 MATCH GROUND SLOPE CB No. 15- TYPE I W/SOLID LOCKING LID STA. 30+05.94, 18.68' L GR.= 468.00± I.E.= 465.24 NTY D.D,E.S, Review Completion DOW Senior r omp et on e JAVS H. SANDER T, P.E. Prov Date LOPMEN T ENGINEER Comments: I NEW DITCH 00 ';:4 - LO o Q0 Q0 � v- 31-1-00 PIPES EXTENSION - � ---- - �---___-_ ____ _-_.�... �_._.... ___ �_ _..__�.-_�-__�______ �- ---� 465 EX. DITCH7LF 12" CONC, EX. DITCH _ TO BE REMOVED TO BE REMOVED 0 0.92% --- I I • � - � 1 j I 113th AVE. S.E. PROFILE (OFFSITE) SCALE; 1 "=20' HORIZONTAL; 1"=2' VERTICAL REV, N©. LIMMMDATE �C' DESCRIPTION 1. .= 462.62 00 QD 00 (o(D Fa (D 32+00 a 33+00 ;{ 34+00 L o DA Y-MORROW-POBLETE, INC. CLIENT JOHN WILKINS 726 AUBURN WAY ''N �;AuaURII WASHINGTON 980.22 5201 LAKEHURST LN. S.E., BELLEVUE, WA 98006 PHONE: 25,3)333-2200 FAX: -(253)333-2206 PHONE NQ- 206,937.4343 0 w PROJECT 132 WILKINS WOOD �Fss F� G��ENGINEERING' - SURVEYING 113th AVE. S.E..KW ® ® E WA AY IMPROVEMENTS �pNA 1. E� LAND PLANNING #, i ri c o r p o ro t e d ', DaMYN BY -M-p , I� u SCALE „ DRAWING EXPIRES JAN. 9, 2006 v 1 = 20x 03285EN G s>rFEr 10 APPROVED APPROVED MLD DATE JULY 6, 2004 J0$Q 03-285 °F 10 STAMP' NOT VALID UNLESS SIGNED & QgTED - e t 1/PR4Jia28S WILKINS �� l DEDUCTIONS I L0 't I . . IN 1.. � . I I . . . . . . I I I cle). . ... � . . I . . :0 ; . ; . . . . . . I . : I..! � I . . . . 1. . . . . - E 5,, . . ' i . 0:1 '- "": i, x . .. k . - 0 i YI.F .".. �', . I. . . . � , � ,4 . yl'��y � __ I - - . 9. f } ,1111 'I�`; I I -.I. -I r I L I.. [. �. ., .. 4::: .. ... - -. . 0) F FR .,,AI. >II ,rid ;, ,E :3 .".. ':; d, . ;: ;. E II \ IL \ 77TRACT 77 17 77 W r I � \ \ i 17 RACT . \ - \ ry. INGRESS, EGRESS, & UTUT , INGRESS, EGRESS & UTILITY .. \ \ fat' 1 2,195 SQ. FT. 2,242 SQ, FT. / ,/ 1__' � ^, 4 -111t -1 1 / . ��' \t / / _'______� ' I �\ \ . I I \ I �. r � S 88"92'23"E / , . o � U I I ) - I ,� 334.82 t � I ) ' / Ik ct I ! �� 6� < I \ '�4�1 36' FI / / �/5' SANITARY SEWER EASEMENT PE q12I / / �6 RECORDING No. 830304074D .`� ----- _ ,f"CEDAR o 3 I 30� / / I �`� I I �, ` �� f ''',18" F ' �� INE.'. SES:.' 'T;j Si -I f , 7 111111,1111111110 6 111.11111111101000, 2 474 p I 0 ,� / 4,335 SQ, FT. 4,300 SQ. FT. 3 921 SQ. FT. � ::: : ::::.1 I / 3 695 SQ. FT" 1, 3D" FIR ,,- 1111. I / 1 '"j �► i 14 FIR 11 # 1111. I / • 18 FIR I / 4 89.29 . � ..�% ' G'.'.V.'.%'."-__.-._..._._' I �/'JS20" FIR �, s .............�/ ` 1 ��: ; 22"& 14" I .. ..VaIAT ......I 1 MAPLE MAPLEp4 47fi 1 ° a PAI T ," / .._ '.. ' �y,, +M K/ _._. �. .. ._.. /./�� .__. .'.'.'.......--_.-N%_...11........./ ... +2411 MAPLE 11:11 / WM 8 ' / "' :':3 ::: :: ..•..; ..:•:............... ._,.;.,.... ......... .....1..... ) 3,784 SQ. Fr. ...'.'.' ' .... .'..-- ..'.'. Ir..... ... — , _ , ... , N �� . , 3,558 SQ. FT. r .... ,''..'.'.'...,.•.,.<.,.. cti'.'.'..........'.'.'.'.•.'.'�•.'.'.'.'.'.'.'.•.'.' ' �;.'.'." 1 � I * I I 812 M .. - '1 .'.'1 .`11. ' ...... N. & i6 . ... 1111 ' .'.'.'.'.'.'.'.`.'.'.'.'.' n'..' ........... . ............. I o.'... I MAPLE I -•••-•••- •... ��8„ APPLE ........... . ... . q•, . , 1 1 1 1 .. , ....•..•...•.•.._.... • ..'. ....' I' .... 750 SQ. �r. I ' .......1. .......... --. I 41 ... X16 0-10 .,.,. •... • ,.,,,, I 71 fl o.. . . ' 1,7 ..'. .,.* I,Ko\ Im'' - . r. .__.. . - - A ,,,,,,,,III'' I : a .' > L — � �� ......... � - TRACT :1111':'..'\'-- 47a X10 �_ r —. - •�- , pU ...... . �— 1111...,..•,_..._ _. � .. a - ................. STORM DRAIN FACILITY -- :1111 :: �.. � ._.. — I p 6,708 SQ. FT. . — -�- __ 11 11 / 3.1 I \ 0 4 • . • . • • Z . 1111 � ;moo & I ''':':,.,...'::I' ::-`:':':'�' : ��Cco ..'.'::':':(y) 1111.. -g � n I I•-- _ _. -- w. 9 ...'.'.Z. .1111... \ / 2- �--• i ,� ... 'h'.. I Q" FIR ' °4 © /r. I 'ly""" 3,784 SQ. FT. •'art. .... a �• ��rO 1 i 14" FIR s j ;� .'.'.'.'.'.' .Q�. a ° ... �/�.....'.'......'. 56�..... ` OPEN SPACE I � � Pn ..', .25. .��.. a I f . s, .,/ /�y +, I .... ......., . , 1111.....' ..'......'.'. I . o aoI vv ter- cv o r ! ..... a . s 4' & 1s oo .1...1.1..1....'.... , ..1.1.........11. CREATION J W \ W �o rr- n %'.. . ,. MAPLE I Q P • 4�� :1 ........1111 \ R E �- I �. ,a. ,�., r_ I .. •. I ' "�12 FIR ..., ....... I................'......'...... Q 3,900 SQ. FT. .\'."""'.'.'." 1. .'...'.'..I".'.'.'.'.'.'.'.'.'..'.'.-,'.'.'.'.'.'.'.'.'.•.`........ ' 'll'.` 8 CH RY '% �r ( I 3.1 - I 4( , I ' �•• • • ••.�� i a..... ... . ...........................'8• • AP' ,I I . ................................... 4 .. I x;54.. ..".0.*.'...'.. . 1 111 ................................ 14 HEMLOCK �. , 1111'.'- • GA ��'„ - I ' 8"d �0 ' `1111 .'.................. • ...'.'.'.'.'.'.'.'.'. d ° �'' 14 SP U ;; I .PAI-N.T' ,12" & 141,I a '...'.'.'.'.'.'.'.'.'.'.'.'.','.'. 4,049 SQ. FT. ' ' ;r ::: •MARK I ��4 .. . ... ,�.��......................11_�,� �.. �:,:. .......:..'.'.'.' MAPLE 16" FIR .......... - •-.��_ p�j� p,,N I :.' . :.' :.' .' : I 1 ' , • a,,. :F I, . . . A 4 I •1111 _ ... , .. • 1..11..1 ..... . . ,1 1.11......... •.'......','.'.'.'.'.'.'.'.'.' 1 'k \80 +• +��� J• a .T. ; *:.�.: 4. '8.32' ,. .. '1.................. '.. 1111.. P�[�`(�'G., �` I �' , .. ,.Z,;' l O 1 1 1 1 ... _ ... 1 1 1 1.. `L . ... \ �0 X1 .... •� is ;4 •f ,.�. . . ...1.'.'.'.'.....'.'.'..'.. :..'.'.....'.. ,1111.... �� , -- . --_. r� ::':, " ! '.'.. I'.'.','.'..'.'...•.'.'.'.'.' I . . . . a . . 1' . . . . .. . .. . .. . . . . . . . . . . . . . . . . . . . . .f. . . . . . . . . . . {� / `�� '2.'sE' '":. _tom `'. . . . . . . . ........... • \\ 20:, 411 :�.;;.:;. �° - :1..... ....'� 6 c TToI 0011.... ......'.'...... :.'.'..'.'.. _i ='' �� ` ;\ t4........ ' ...........'.'. I Pt-� A• f= := :. , a .'..'.'.'.'.'..'...'. . a 1 24``, AP.L�w .....'..•.'.'..'....'.'.'...... O �• \ .-" y a . tS�.. ............. _ I. - 11 0 OTT �' ... • ............ 11 I ' `_ .. I .. ..'". . ..' I� . .'/ I... a'1.:...... ..�... ............... ° O ...,.••-; . _- .� •1.1'..•.11 1 . , f �. _. .' • !4..'.'. '.' �W46:"'-'-'---0T�ON ........... 6/' . I ...W00D - . , 1 1 1 1 . ............%K ...... , . ,."-".'.'... a� . Q a.. . 1 4 . , °- . � 4.6- Q }.'.'.'... , '.. I....... . 10 \ .V.%"* 1 111:. 1 111 ..... — .. .. .. ...... .. . a , a a .'"° , .. . .. .... {�s. .. . . '�'... ... ..... ... .. , %4 096 sQ. FT. ,; ................... .�I ............1.. '.'.•.'...... '.':..... 4 .4 _:.. _ .......... 1111... ........' I'.............. , I __ 1 ..j.2 g�..j,.� !1 '.'..... �. �- '... ALDER p — .............. .... , .... �$ aL�` . =� • • • . •0r1. •:•:-:•:•1 •;•:• •. ' 0, 2,.'.... .`.'.'.'.'.`.'.'.`.'.'.'.'.'..'. ."..'. 11:11:. :•:•:•:• :. :... U!'--.. ' �' . • • " ' ` I 1. . «..�} , ..�. . . . . . . . . . . . .` . . . . . . . . . . . . . . . . I . . . . S.E.Sr i. . . . . . . . . . , . . . . . . . . . . . , ,; �I \' ~---•47 \ ..1 .,: .....'...... ........ _'. , ....'....."�'� .- 1 11 1 .. ..' • .. I .......'.........'. o ::::: _.'.........'.'.... I. .1.1.1. 1...... .. I........ ..III , 1 , gip?..... .............................•..,...... ...-1.111... �-I.. '.R., ......... ....... I , .., ,� o -=I- „�:............ . $ ... ..... ... \� \ ...... ........... ............... .. .. ..... . .--•-�..�.._:w . ... 1111... _ - _� .'...:..::.......1111.—,.__,_.__...... .•.. _ . ., o �. ' _ .... .._ _ .....� 1111._ .. .- 11( 1_ ................� 1111 .. 1111... _ .. . , ,_ �. 1111:: � 1111 1111. �„ _ �___� .(� —. —._ .......... �.--�-I ------�� ... .. - ... : 1 ... ... .. . , . 1111'.`:..`.•. .'.':... ,1111.. 1111 . ............ I .. , .... .. , . . . 1111. , . . ' c __ _ .=.'.'.'..'.'....-:�,' . I ........ FIRE HYDRANT OR l" _' - - ....._. . ..... I ° UTILITY POLE 5 MIN. N 88° BJP ° o � I .'�' � s 11 ,_ ___ 0216, o ..... .1111. / , --- _' _ % _-' - 335 \ �___ !I 1� 1 . � . 0 / P... r .....' I � 4LL - / \� f � EX. PAVED DRIVEWAY I I I 4q,- - . / '. .1 . 1 . ; _ 24 00 I •. • TABLE I 8' CHAINLINK FENCE ` WA I. ' ., , ( ( � `00' MIN. EX,: PAv D DR I I - '.;•: "[ Il , I W r [___� ,:1 fes% _, _ . / /; .'// r%/ r// SIGNIF CANT IN ERIOR SIGNI ICANT PERIMETER ' SIGNIFICANT SIGNIFICANT -. P CIE EXISTING SIGNIFICANT TREE SIGNIFICANT TREES W/IN AREAS REQUIRED FOR SITE SIGNIFICANT SIGNIFICANT . S E ,f INTERIOR TREE PERIMETER TREE TREE SIZES TO BE TREE SIZES T4 13E I.. ACCESS BY VEHICLES, PEDESTRIAN OR UTILITY INTERIOR TREES SIZES PERIMETER TREES SIZES RETAINED 3 RETAINED 3i '[1]INFRASTRUCTURE 6',30", 36",18" 16" 36" (x2) 511. • FIR 10 10 1 7 14",20",14",12",16" < ' 1,.. r ` CEDAR 1 1 1 18" _ - f R . _ _ k1. SPRUCE 1 1 1 14" . I .1 t COTTONWOOD 3 0 3 i `�: 1 g 20", 24", 24",12", 24" & 24" 20" (x) & 1. MAPLE 10 10 �, ,_ �, >. 16 ,14 ,16 ,9 2"11 4 24"(x2)' .- a' A DER 2 0 If _ 3 0 1 APPLE . F k . CHERRY 1 0 i V. BIRCH 3 1 1 12" I ". � 9 HEMLOCK 1 1 1 14" �• ; . CATEGORY . DEDUCTIONS SITE AREA 11 't I 0.1 0.27 0.17 :,y_� '" . 1.0 2 REPLACEMENT TREE SHALL BE PROVIDED FOR EVERY INCH MEASURING THREE INCHES IN DIAMETER, ONE HALF INCH DIAMETERREL A t %, : . ��z LAND PLANNING . DIAMETER OF SIGNIFICANT TREE. ' . i n t o rp o ra t d y 11 ? �4 ea SCALE ,1 1 1 — 20 ,i. k 4 i L .�1. SHEET , S . .. ' F _ [EXPIRES JAN. 9, 2006 }1 a �k.. 0" �;4 , '_ r � APPROVED CATEGORY ACRES DEDUCTIONS SITE AREA 1.54 27 3" CAL, 0.1 0.27 0.17 ACCESS TRACTS RIGHT OF WAY STORM POND NET AREA 1.0 2 1.SITE AREA 1.0 ACRE S REQUIRED TREES PER ACRES 20 TOTAL REQUIRED TREES 20 PRESERVED TREES 7 fi' . . . TgTAL REPLACEMENT TREES REQUIRED 13* t:, j ;1.3: - .. - *(SIGNIFICANT TREE REPLACEMENT REQUIRED AT 12' DIAMETER) .. ,; .� , f 1 N4 - $r. F - r .. r�ti R S- pay - . :,.. 1. " . . � . `i �i. .. . '. ' . ; • v ., . . TOTAL= 304"O TABLE it TYPE NUMBER SIZE (IN) EQUIVALENT VALUE (SIGNIFICANT TREES) EVERGREEN 27 3" CAL, 13.5 VINE MAPLE 4 3" CAL. 2 (SEE APPROVED PLANTING PLAN) TOTAL = 15.5 TOTAL= 84" TOTAL= 104"O SIGNIFICANT TREES REQUIRED= 20 SIGNIFICANT TREES RETAINED= 7 REPLACEMENT TREES REQUIRED= '13 REPLACEMENT TREES PROVIDED= 15.5 [1 ] PER KCC 21A.06.1167, SIGNIFICANT TREE IS 8 " O FOR DECIDUOUS TREES MINIMUM. [21 PER SO --220, 75% OF STREET PERIMETER SIGNIFICANT TREE SHALL BE RETAINED. [3i PER SO --220 A SIGNIFICANT TREE MAY BE CREDITED AS TWO TREES WHEN THE TREE SIZE IS 18" OR GREATER IN DIAMETER. TOTAL= 72"� (86% OF TOTAL) [2] LUMINAIRE NOT GRAPHIC SCALE 20 . 0 10 20 ( IN FEE ) 1 inch = 20 ft. LEGEND W a EX, SAN. SWR. MANHOLE EX. FIRE HYDRANT . FH ® EX, WATER METER WM ' X� EX, WATER VALVE . uP EX. UTILITY POLE o EX. MAILBOX o EX. CHAINLINK FENCE x EX. WIRE FENCE EX, CONIFEROUS TREE— TO REMAIN a EX. DECIDUOUS TREE — TO REMAIN , EX. CONIFEROUS TREE— REMOVE 0 FY.. i3F_C�DUaUS -VREF-- RF_M0'4F_ NEW TYPE I CATCH BASUN kWd} NEW TYPE II CATCH BASIN PROPOSED STREET TREE (SEE APPROVED LANDSCAPE PLAN FOR STREET TREE DETAILS) STREET TREES SHOWN FOR REFERENCE ONLY . SIDEWALK NEXT TO ROLLED CURB - NOTES: . 1. TREES SHALL GENERALLY BE PLANTED BACK OF THE SIDEWALK. PLANTING STRIPS WILL BE APPROVED ONLY AS PART OF A LANDSCAPING PLAN IN WHICH PLANT MAINTENANCE, COMPATIBILITY WITH UTILITIES, AND TRAFFIC SAFETY ARE DULY CONSIDERED. . % 2. SPECIES OF TREES TO BE LITTLE–LEAF LINDEN, 3" CAL. OR OTHER KING COUNTY APPROVED TREES. 3. THE SPECIES OF TREES SHALL BE APPROVED BY DDES IF LOCATED WITHIN THE RIGHT–OF–WAY, AND SHALL NOT INCLUDE POPLAR, 50' MIN. COTTONWOOD, SOFT MAPLES, GUM, ANY FRI1IT--BEARING TREES, OR ANY OTHER TREE OR SHRUB WHOSE ROOTS ARE LIKELY TO OBSTRUCT SANITARY OR STORM SEWERS, OR THAT IS NOT COMPATIBLE WITH . OVERHEAD UTILITY LINES. ROLLED CURB LINE • t. AT INTERSECTION TANDARDS t F KCRS DWG ND. 5-00*9 . ..' . . , , .. . �: .STREET TREE N. T. S, KING COUNTY D.D.E.S. 4�;W ar5p�� 7-2 3 -­<�� - . Review Engineer T Completion Date ,�' . '1111111!*116k, - P"14%4. - - YS 'o ineer Completion Date . ) .z::2to . -�7 � � - �2h . JAMS H. DERS, P.E. App oval Date LOPMENT ENGINEER Comments: I _ .1 d D : REV. NO. DATE . . . muv� CLIENT j `, . DAL -1 - --MORROW-POBLETE, INC. \1 ( 72F AUBURN WAY .;NORTH I H AUBURN, WASHINGTON 98022 f �� ' PHONE: (23)333-2200 FAX: (25:3)333---220.6 C> . PROJECT r1. 7 I A��___ O&I 4ro lZewe-4-1 W DESCRIPTION DREAMCRAFf HOMES 215 EAST MEEKER, KENT, WA 98032 PHONE No. (253) 859--9697 WILKINS WOOD APPROV ' RFs �� ,��`� s�U C : ENGINEERING — SURVEYING < TREE RETENTION PLAN ` [4] PER 50�-220, WHEN USING REPLACEMENT TREES REPLACEMENT TREE SHALL BE PROVIDED FOR EVERY INCH MEASURING THREE INCHES IN DIAMETER, ONE HALF INCH DIAMETERREL A t %, LAND PLANNING . DIAMETER OF SIGNIFICANT TREE. ' . i n t o rp o ra t d DRMVN BY ASP�VFB SCALE ,1 1 1 — 20 ORAIVINC 03285ENG SHEET , [EXPIRES JAN. 9, 2006 1 0" APPROVED M LD DATE JULY 6 2 0 0 4 ' 0 32.8 5 of . STAMP NOT VALID UNLESS SIGNED & DATED , . b1PR0JECT5/0.3385 W&KIt P -• -- __ 1 ' , . �_:: . . b - _ -. i� - . -moi N : ".. .. .- _ .- r tf :s F t .. ? " Y .. ., -:. .. _.; 1:' . - � �. �• �, :. � . , ., �. •, 1111 C, ". a .�. _._ ._ 1111. , �........, �.:-.,.,._ <. ri..i �.. .w.. 1111... Eesti _.,. - 1111 F M mE. _ A�cf$.d.. .....3J.,'E.s 3,d >7 i r. <� mi:, .�:� ,, .. .n -: .. F "K � .t I. ;1 . _ s. _ a A Sc. tf x a E €�r "9 �[ k 4 4 9- ' a e '£_ z�`"z bo- d a "-' > n e ,� rn 3 F 7 i...- ,fir i t r m s d + i- v. �Y - 3 i:� �: ie 1S S ,7 V: p w t �( I t I .. �� ., � x _ hr -, -�- Y., :S. .d I ) E .� �J � f, �. � :�.1 «:. �. ? pp r � t ;� e � - i r 3 ,a ti. .;, t - i E; iia,.�[�..�€.€ �:. �''� I_ E ,I i.�l [�1 �:.i:f .Sar �, fiF;111,1'. t I #$ �'.: _ t B�. { i "�. E [,. EI I �,la f?.. I i c, A performance bond for recreation space improvements shall be posted prior to recording of the plat. d. A homeowner's association or other workable organization shall be established to the satisfaction of DDES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s). 12. SO -220 shall be implemented through submittal of engineering plans in compliance with the significant tree provisions. 13. Street trees shall be provided as follows (per KCRS 5.03 and KCC 21A.16.050): a. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accomodate sight distance requirements for driveways and intersections. b. Trees shall be located within the .street righ—of—way and planted in accordance with Drawing No. 5--009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right—of--way. c. If King County determines that the required street trees should not be located within the right—of-way, they shall be located no more than 20 feet from the street right—of--way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or, other workable organization unless the County has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. e. The species of trees shall be approved by DDES if located within the right—of—way, and shall not include poplar, cottonwood, soft maples, gum, any fruit --bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. f. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by DDES prior to engineering plan. approval. g. The applicant shall contact Metro Service Planning at 684-1622 to determine if 113th Avenue SE is on a bus route. If 113th Avenue SE is a bus route, the street tree plan shall also be reviewed by Metro. h. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kept healthy and thriving. i. A landscape inpsection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current County fees. ORDERED this 11th day of December, 2000 R.S. Titus, Deputy King county Hearing Examiner TABLE OF CONTENTS SHEET DECISION LO of Wilkin's Wood is GRANTED PRELIMINARY APPROVAL; subject to the following condition; of 00 The proposed Plot COVER SHEET final plat approval: of 'n provisions of Title 19 of the King County Code. th all platting 1. Compliance wip EXISTING CONDITIONS PLAN ownership interest in the subject property shall sign on the face of the final plot a 2. All persons having an p in King County Council Motion No. 5952. of dedication which includes the language set forth HORIZONTAL SITE PLAN 3. The plat shallcomply P y with the base density (and minimum density requirements of the R-8 zone dimensional requirements of the R-8 zone classification or shall of classification. All lots shall meet the minimum the face of the approved preliminary plat, whichever is larger, except that minor revisions o STREET AND STORM PLAN be as shown on the plat which do not result in substantial changes may be approved at the discretion of the Department of of Development and Environmental Services. STREET AND STORM PROFILE AND SECTION 4. All construction and upgrading of public and private roads shall be done in accordance with the King County KCRS). of Road Standards established and adopted by Ordinance No. 11187, as amended (1993 NOTES AND GENERAL DETAILS 5. The applicant must obtain the approval of the King County Fire Protection Engineer for the adequacy of the of fire h Brant, water main, and fire flow standards of Chapter 17.08 of the King County code. y DETENTION POND/ WETPOND PLAN AND DETAILS ' al lata royal shall require full compliance with the drainage provisions set forth in King County Code 6. Fin p PP of 9.04. compliance may result in reducing the number and/or location of lots as shown on the preliminary identified the following conditions of approval, which represent portions of T.E.S.C. PLAN approved lat. Preliminary review has aper P the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design anua of (SWDM) must also be satisfied during engineering and final review. Y T.E.S.C. NOTES AND DETAILS -A a. Drainage plans and analysis shall comply with the 1998 King aunty Surface Water Design Manual. DDES 10 approval of the drainage and roadway plans is required prior to any construction. b. Current standard pian notes and ESC notes, as established by DDES Engineering Review shall be shown on the engineering plans. c. The following note shall be shown on the final recorded plat: w� "All buildin downspouts, footing drains, and drains from all impervious surfaces such as patios and driveways g shall be connected to the permanent storm drain outlet as shown on the approved construction drawings vi on file with DDES and/or the Department of Transportation. This plan shall be submitted with the a plication of any building permit. Ail connections of the drains must be constructed and approved prior to the P UJi1F final building inspection approval. For those lots that are designated for individual lot infiltration systems, the file. systems shall be constructed at the time of the building permit and shall comply with the plans on a d. Core Requirement No. 1: Discharge at the Natural Location. Storm water runoff control shall be provided using the Level One flow control detention criteria outlined in _ the 1998 King County Surface Water Design Manual (KCSWDM). The downstream conveyance capacity shall be .` evaluated during engineering review to accommodate developed, undetained flows, above the design storms This be required Core Requirement #4 of the SWDM at a , handled by the Level One flow control criteria. will per engineering review. i of the proposed drainage tract my have to increase to accommodate the required detention The se z P storage volume. The runoff control facilities shall be located in a separate tract and dedicated to King County for required recreation space in Accordance with KCC 21 A.14.180. i unless portions of the drainage tract are used P the 1998 KCSWDM, roof drain storr�� water shall be infiltrated or As s ecified in section 5.1.1 ofigation P ?...??? -E � P dispersed within the lot area if the soil conditions are favorable. F f. Core Requirement No. 4: Conveyance Systems. outlet pipe from the detention facility that is proposed to.. convey stori n water -over the downstream The P P t Weber properly shall adhere to Section 4.2.1 of the 1998 KCSWDM. g. Core Requirement No. 8: Water Quality. The site is subject to the Basic water quality requirements of the 1998 .KGSWDM. h. Sp ecia! Requirement No. 1: Other Adopted Area Specific Requirements. , The project is located within the Soos Creek Community Planning Area contains special district overlays for seasonal clearing restrictions, clearing and grading and significant tr;E;es. The ;applicable P --suffix requirements shall be addressed on the final engineering plans. y i. Geotechnical Analysis and Report. " nical Engineering Evaluation and Limited Subsurface Environmental Assessment" has been A Geotech g 9 performed b Ad Engineering' Inc. Shallow depth to bedrock and marginal fill materials were located in the P y western and eastern portions of the site, respectfully. Recommendations from tis report shall be implemented during engineering review. proposed subdivision shall comply with the 1993 King County Road Standards (KCRS) including the 7. The pro P following requirements: a. Proposed SE 167th Court shall be improved as an urban minor access street. P _ Frontage im rovements on 113th Avenue SE are required to the urbon_.__subcollector standard. b. 9 P Tracts A and C shall be improved as private joint use driveways which serve a maximum of two lots. z c. The serving lots shall have undivided ownership of the tract and be responsible for its maintenance. As specified �.. 20 feet. ` in KCRS 3,01C, improvements shall include an 18 foot paved surface and a minimum tract width of Drainage control shall include a curb of thickened edge on one side. d. The proposed road improvements shall address the requirements for road surfacing outlined in KCRS Chapter 4. As Hated in section 4.01 F, full width pavement overlay is required where widening existing asphalt, unless waived by the review engineer or reviewing agency. Street trees shall be included in the design of all road improvements, ' and shall comply with Section 5.03 e. of the KCRS. Off—site road improvements of 113th Avenue SE north to SE 164th Street are required for safe school f. 0 P F ` children walking conditions. Provide at a minimum a 5 --foot wide grave! walkway: . There shall be no direct vehicular access to or from 113th Ave. SE from Lot 4; which abut it. A note to 9. T this effect shall appear on the engineering plans and final plat. h. Modifications to the above road conditions may be considered by King County pursuant to the variance procedures in KCRS 1.08. All utililties within proposed rights-of—way must be included within a franchise approved by the King County 8. P , Council prior to final plat recording. f 9. The applicant or subsequent owner shall comply with King County Code 14.75, Mitigation Payment System d b the licable fee ordinance. (MPS), by paying the required MPS fee and administration fee as determine y pp Thea applicant has the option to either: (1) pay the MPS fee at final plat recorrJJng, or (2) pay the MPS fee at PP the time of building permit issuance. If the first option is chosen, the fee paid =shall be the fee in effect at the "AI! time of9 PY lot application and a note shall be placed on the face of the plat thca,t reads, fees required by Kin Count Code 14.75, Mitigation Payment System (MPS), have been paid." If 'the second option is chosen, the f fee paid shall be the amount in effect as of the date of building permit application. F 10. Lots within this subdivision are subject to King County Code 21A.43, which imposes impact fees to fund school system improvements needed to serve new . development. As a condition of final approval, fifty percent t50%) ( of the impact fees due for the plat shall be assessed and collected immediately prior to recording, using final approval. The balance of the assessed fee shall be the fee schedules in effect when the plat receives n PP allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance. g 11. Suitable recreation space shall be provided consistent with the requirements of KCC 21A.14.180 and KCC i 21A.14.190 0,e., sport courts], children's play equipment, picnic table[s], benches, etc.). a. An overall conceptual recreation space plan shall be submitted for review and approval by DDES, with the submittal of the engineering plans. This plan shall include location, area calculations, dimensions, and general I i rovements• The approved engineering plans shall be consistent with the overall conceptual plan. mp -failed b. A de recreation space plan (i.e., landscape specs, equipment specs, etc.} consistent with the overall conceptual plan, as detailed in item a., shall be submitted for review and approval by DDES and King County q, Parks prior o or concurrent with the submittal of the final plat documents. i c, A performance bond for recreation space improvements shall be posted prior to recording of the plat. d. A homeowner's association or other workable organization shall be established to the satisfaction of DDES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s). 12. SO -220 shall be implemented through submittal of engineering plans in compliance with the significant tree provisions. 13. Street trees shall be provided as follows (per KCRS 5.03 and KCC 21A.16.050): a. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accomodate sight distance requirements for driveways and intersections. b. Trees shall be located within the .street righ—of—way and planted in accordance with Drawing No. 5--009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right—of--way. c. If King County determines that the required street trees should not be located within the right—of-way, they shall be located no more than 20 feet from the street right—of--way line. d. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or, other workable organization unless the County has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. e. The species of trees shall be approved by DDES if located within the right—of—way, and shall not include poplar, cottonwood, soft maples, gum, any fruit --bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. f. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by DDES prior to engineering plan. approval. g. The applicant shall contact Metro Service Planning at 684-1622 to determine if 113th Avenue SE is on a bus route. If 113th Avenue SE is a bus route, the street tree plan shall also be reviewed by Metro. h. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kept healthy and thriving. i. A landscape inpsection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the current County fees. ORDERED this 11th day of December, 2000 R.S. Titus, Deputy King county Hearing Examiner TABLE OF CONTENTS SHEET .1'1I o . TITLE 1 of 10 COVER SHEET 2 of 10 EXISTING CONDITIONS PLAN 3 of 10 HORIZONTAL SITE PLAN 4 of 10 STREET AND STORM PLAN 5 of 10 STREET AND STORM PROFILE AND SECTION 6 of 10 NOTES AND GENERAL DETAILS ' 7 of 10 DETENTION POND/ WETPOND PLAN AND DETAILS 8 of 10 T.E.S.C. PLAN 9 of 10 T.E.S.C. NOTES AND DETAILS 10 of 10 113th AVE. S.E. WALKWAY IMPROVEMENTS 1 of 1 TREE RETENTION PLAN LEGAL DESCRIPTION THE EAST ' HALF OF LOT 4, BLOCK 6, AKER'S FARMS NUMBER 6, ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 42 OF PLATS, PAGE 15, IN KING COUNTY, WASHINGTON. SITE ADDRESS & PARCEL NO. 16613 113th AVE. S.E., RENTON, WA 98055 008800-0400 VERTICAL DATUM..,--, BENCH MARK.- KING ARK:KING COUNTY #RENT1863 COPPER PIN IN CONCRETE MONUMENT IN IRON CASE @ INTERSECTION OF SE 168TH ST. AND 116TH AVE. SE ELEV. -139.919 CONTOUR INTERVAL: 2 FEET KING COUNTY D.D.E.S. Review Engineer Completion Date Senior Engineer Completion Date JAMES H. SANDERS, P.E. Approval Date DEVELOPMENT ENGINEER Comments: fVicinity Map i� N T. S, 20 .i 20121' 1��IF28 S.E, 164TH ST. w w V) vi SFE 29 S.E. 168TH ST. w� vi UJi1F a 15 0 176TH ST. 2928 (PETROVITSKY RD.) 3 33 Soils Map tit .yam, AgC: Scale 1 °=;2000' Notice Required Contractors shall notify operators who maintain underground utility lines in the area of proposed excavation or blasting of least two business da sbut not more than ten working days prior to commencement of excavatir or demolition in accordance with RCW Title 19. Names and telephone nubers of the operators of underground utility lines in this project appear blow. These numbers shall also be used to serve in an emergency cond.tio ,s as required. n= Phoney SOOS CREEK WATER AND SEWER DISTRICT 253-630 9904 �w Sanitary Sewer SOOS CREEK WATER AND SEWER DISTRICT 253-630-9900 Water District ti> PUGET SOUND ENERGY 425-455--5120 Gas Company a e Site Plan Approval 0 0 Z Approval of these plans is for construction of road and drainage N W W improvements, site drainage & grading and temporary ., erosion Z I > Z 9 9 Z rr} Ir Z control in unincorporated King County only. These plans do not -,Y: a�;.V; z authorize any other utility approval or improvements proposed W o r, in any State right of way. E--0 W cr N Site plan approval is void if the commercial building permit has J O Z IM z x not been obtained or renewed within two years of approval. 0 >_ o Q W Z tL ¢cam Q Subdivision plan approval is void if the final plat is not recorded z Z prior to the preliminary plat approval expiration. Z i 0 0 4 0 �QN Z aIOCm�c� W 5 0<z� PRO RATA SHARE ASSESSMENT ANALYSIS {County Use Only)�" m o LO W Q� J Section Township Range Tax Parcel Number J o 2 9 2 3 0 5 10 1 018 1810 101 10 14Lo I OI D Q w Q°. o 0 _ � u Site Location is within the -------------- drainage shed(s) 4 C Pro Rata Share Assessment(s) are: ❑ Required ❑ Not Required from the site due to development for increased storm water runoff. Peak Runoff Assessment Rate($ ) per c.f.s. increoses.(10 year, 2 hour storm) Peak Volume Assessment Rate($ ) per Ac. Ft, increases.(2 year, 2 hour storm) AGREEMENTS, PLAN REFERENCES, PERMITS ETC. (To be completed by Consultant) Preliminary Plat Approval/Permit Issued Date: 12/11/00 Expiration Date: 12/11/05 Other Related Permit Numbers Received: Right--of--Way Use Permit Grading Building/Structural Other Board feet of tree removal on site: 4,300 bd. ft. Cubic yards of material hauled on/off the site: 195 cu.yd. Is this a erosion sensitive area site? (Yes/No): NO Note: If "yes", a Highly Sensitive Site Erosion Control Supervisor is required. See ESC plan and TIR for details. Emergency 911. Police Fire— Rescue RECOMMENDED FOR APPROVAL Date s E gine r PI Reviewer ,4 �, . _ 1... /1. _ PUGET SOUND ENERGY � J • L-- - J Power Company Dated Signature Development Engineer (I� Call Before You Dig DIAL—A—DIG y LIJ s: Cn Notes �� . ,��� �- � �= Q) 'iE2 �. 1, The Developer is required to notify the land Use Services Divisi',n, a� -+1 DREAMCRAFT DOMES (253) 859-9697 E land Use Inspection Section (206) 296-6642, three days priorAo the beginning p v v Name W of construction for a pr'econstruction conference and specificol y request .,� a) Phone .: ; _ inspection before beginning: a>> o ° 215 EAST MEEKER, KENT, WA 98032 I-� A. Installing siltation and erosion control measures p p J -+-J ice. B. Clearin and grubbing U 0 9 9 9 E] ®❑ Address and Zip Code (1) ] WC. Earthwork D. Installation of any underground utility . f .� � A Corporation Q 0 ;�- ` > E. Before placing subbase, base or paving surfaces P CU q) F. Installation of any forms or placing any concreTe ❑ A Partnership 0 < ❑ An Individual 2. A permit must be obtained from the office of the Resident Engineer, a-- DREAfCRAET HaEfS (253} 859-9697 Washington State Department of Transportation, before any col struction .r Q is started on ariy existing state route. L v � 4_1 Name Phone F 3. A Hydraulic Project Approval (HPA) Permit must be ot�tgined ,from the fy w3 Washington State Department of Fisheries prior to'"an war• . wh n required. 215 EAST MEEKER, KENT, WA 98032 9 P P y,., q o O i--� ®❑ Address and Zip Code f �:R ® A Corporation Bonding Information ❑ A Partnership ❑ An Individual SNA L E� L L DA�LEY—MORROW - POBLETE, INC. (253) 333-2200 Restoration Bond Amount o Q, >, (D EXPIRES JAN, 9, 2006 C: Name Phone ---�-- q LSTAMP NOT VALID Performance Bond Amount 726 AUBURN WAY NORTH, AUBURN, WA 98002 UNLESS SIGNED AND DATED U in o LLJ Z ® Address and Zip Code J of --�10 Sheet 1 DATE PRINTED: JULY 6, 2004 r�RR9UEGT��0a�65 ivtU�r�rSjgaa�5�l& .i Notice Required Contractors shall notify operators who maintain underground utility lines in the area of proposed excavation or blasting of least two business da sbut not more than ten working days prior to commencement of excavatir or demolition in accordance with RCW Title 19. Names and telephone nubers of the operators of underground utility lines in this project appear blow. These numbers shall also be used to serve in an emergency cond.tio ,s as required. n= Phoney SOOS CREEK WATER AND SEWER DISTRICT 253-630 9904 �w Sanitary Sewer SOOS CREEK WATER AND SEWER DISTRICT 253-630-9900 Water District ti> PUGET SOUND ENERGY 425-455--5120 Gas Company a e Site Plan Approval 0 0 Z Approval of these plans is for construction of road and drainage N W W improvements, site drainage & grading and temporary ., erosion Z I > Z 9 9 Z rr} Ir Z control in unincorporated King County only. These plans do not -,Y: a�;.V; z authorize any other utility approval or improvements proposed W o r, in any State right of way. E--0 W cr N Site plan approval is void if the commercial building permit has J O Z IM z x not been obtained or renewed within two years of approval. 0 >_ o Q W Z tL ¢cam Q Subdivision plan approval is void if the final plat is not recorded z Z prior to the preliminary plat approval expiration. Z i 0 0 4 0 �QN Z aIOCm�c� W 5 0<z� PRO RATA SHARE ASSESSMENT ANALYSIS {County Use Only)�" m o LO W Q� J Section Township Range Tax Parcel Number J o 2 9 2 3 0 5 10 1 018 1810 101 10 14Lo I OI D Q w Q°. o 0 _ � u Site Location is within the -------------- drainage shed(s) 4 C Pro Rata Share Assessment(s) are: ❑ Required ❑ Not Required from the site due to development for increased storm water runoff. Peak Runoff Assessment Rate($ ) per c.f.s. increoses.(10 year, 2 hour storm) Peak Volume Assessment Rate($ ) per Ac. Ft, increases.(2 year, 2 hour storm) AGREEMENTS, PLAN REFERENCES, PERMITS ETC. (To be completed by Consultant) Preliminary Plat Approval/Permit Issued Date: 12/11/00 Expiration Date: 12/11/05 Other Related Permit Numbers Received: Right--of--Way Use Permit Grading Building/Structural Other Board feet of tree removal on site: 4,300 bd. ft. Cubic yards of material hauled on/off the site: 195 cu.yd. Is this a erosion sensitive area site? (Yes/No): NO Note: If "yes", a Highly Sensitive Site Erosion Control Supervisor is required. See ESC plan and TIR for details. Emergency 911. Police Fire— Rescue RECOMMENDED FOR APPROVAL Date s E gine r PI Reviewer ,4 �, . _ 1... /1. _ PUGET SOUND ENERGY � J • L-- - J Power Company Dated Signature Development Engineer (I� Call Before You Dig DIAL—A—DIG y LIJ s: Cn Notes �� . ,��� �- � �= Q) 'iE2 �. 1, The Developer is required to notify the land Use Services Divisi',n, a� -+1 DREAMCRAFT DOMES (253) 859-9697 E land Use Inspection Section (206) 296-6642, three days priorAo the beginning p v v Name W of construction for a pr'econstruction conference and specificol y request .,� a) Phone .: ; _ inspection before beginning: a>> o ° 215 EAST MEEKER, KENT, WA 98032 I-� A. Installing siltation and erosion control measures p p J -+-J ice. B. Clearin and grubbing U 0 9 9 9 E] ®❑ Address and Zip Code (1) ] WC. Earthwork D. Installation of any underground utility . f .� � A Corporation Q 0 ;�- ` > E. Before placing subbase, base or paving surfaces P CU q) F. Installation of any forms or placing any concreTe ❑ A Partnership 0 < ❑ An Individual 2. A permit must be obtained from the office of the Resident Engineer, a-- DREAfCRAET HaEfS (253} 859-9697 Washington State Department of Transportation, before any col struction .r Q is started on ariy existing state route. L v � 4_1 Name Phone F 3. A Hydraulic Project Approval (HPA) Permit must be ot�tgined ,from the fy w3 Washington State Department of Fisheries prior to'"an war• . wh n required. 215 EAST MEEKER, KENT, WA 98032 9 P P y,., q o O i--� ®❑ Address and Zip Code f �:R ® A Corporation Bonding Information ❑ A Partnership ❑ An Individual SNA L E� L L DA�LEY—MORROW - POBLETE, INC. (253) 333-2200 Restoration Bond Amount o Q, >, (D EXPIRES JAN, 9, 2006 C: Name Phone ---�-- q LSTAMP NOT VALID Performance Bond Amount 726 AUBURN WAY NORTH, AUBURN, WA 98002 UNLESS SIGNED AND DATED U in o LLJ Z ® Address and Zip Code J of --�10 Sheet 1 DATE PRINTED: JULY 6, 2004 r�RR9UEGT��0a�65 ivtU�r�rSjgaa�5�l& L0 N P40 15' 4' WIFE FEfICE W O , i 1 4' WIRd FENCE—\_ 1 �. t 88 92'23" E %• s SANITARY SEWERJEASEMENT PER -` RECORDING Nd 8303040740 Ile 12"&16 MAPLE / 22" & 14" i� 18" MAPLE MAPLEv } ole 24" MAPLE " APPLE r 334.82' 1 if J•' , ` 12", 10" & , x 6" BIRCH 20" FIR 14" FIR `;.�' ''� ' � r�ff��'� '• f' ,.f •'rf.� -------`.�'.•Q• 0 WZT4" & 16" MAPLE CHP FIR RY 8" APPLE�Q . H-E-_M._L--O--_C._K(f �.141A j �h� � • 1- � r` •�• SIU' ''MAPLE � / � .._ �• , � � -_ 16" FIR Iz \ r µ ti s `'� • 6"�JTT01•' WOOD 201, & 2411 , ,, '�, -•• _ .. - � / `... MAPLE �` ,l 24" MA LE �```-4 0 COTTONWOOD 017.41 14" COT;T"ONWOW 12 ALDERS r� .0 501 mm N 88902'16`E ._.�uP ° ./. /. 335.90 4' WIRE FENCE ° EX. PAVED DRIVEWAY • /'-/'8" APPLE 0 0 EXIST. DITCH p EX. CULVERT 12" CONC UP IE=469.55 EX GRA1 D I VE WA EX. CULVERT 12" CONC .IE -468.53 'Il r)� I EXIST. DITCH t I I 36" FIR 18" CEDARr\� j -%18" FIR \� X. CULVERT " f, J1 12" CONC d `.- lE=468.09 0 30" FIR ,,'.- ..' Chi --' 4" FIR 1.8 FIR, �- i I!.PAINT �,} / �oole•1 f EX. CULVERT MARK / 12" CONIC I / IE=467.7I' / WM I 03 WI 0 >c"'L_ 5 o0 1 �� i I I "D I Z 1 cy) ctt Co , I T' /\ EX. CULVERT \ ~ (D 1 A" CONC �_GAS _ 14" SPRUCE �� I =466.06 PAINI ` MARK I �. r EX- GRA VEL D RrVE . CULVERT � 12" CONC IE=465.68 I 1 # EX. CULVER II I �� 12" CONIC IE -465.67 •� •�; � cis I I �- ., I 0 U P , O 0 0 L8' CHAINLINK FENCE Ex. PAVED DRI Q� 0` 0 0 0 5' SHEEP WIRE FES E \\ o EX. SSMH EX. CULVERT Jrl RIM=468.5 12 CONC i I IE(N&S)81=456.71 IE=466.16 u I I I � � I I U uj d I r' 1 I ATCHQ-qmmm� -LINE 3 I c 5' SHEEP WIREFE CE I I. 0, ,, it ATCHG'- ALINE �UF FH CC I RR TIE' WALL f EX. CULVERT 11 j 12 CONC J 265.5LF @ 2.39 YARD:DRAI T' GRATE '463. 1 I.E.= 461 4 �I. 4 CHAIN LINK FENCE _ EX. GRAVEL: DRIVE `. GRAPHIC SCALE 20 0 10 20 OIL= ( IN FEET ) 1 inch = 20 #t. LEGEND Me] O EX. SAN. SWR. MANHOLE FH EX. FIRE HYDRANT EB EX. WATER METER Wm Z� EX. WATER VALVE uP EX. UTILITY POLE o EX. MAILBOX o EX. CHAINLINK FENCE s, x EX. WIRE FENCE EX. CONIFEROUS TREE- TO REMAIN r a EX. DECIDUOUS TREE -- TO REMAIN EX. CONIFEROUS TREE-- REMOVE ti EX. DECIDUOUS TREE- REMOVE TO BE REMOVED z TO BE ABANDONED - CB --T PE �: RIM= 61.32 a I.E. (1\)= 459.82 3 ,I I I I.E. ()= 459.16 o I.E. (W)=: 460.22 g REV. NO. DATE DESCRIPTION APPROVED } LEY-MORROW-'POBLETE INC. `L`E"F DA DREAMCRAFT HOMES �� _ 726. wa -AUBURN WAY NORTH 215 EAST MEEKER, KENT, WA 98032 OF AUBURN, WASHINGTON 98022 �•`` PHONE: (253)333-2200 FAX: (253)333--2206 PHONE No. X253} 859-9697 0 PROJECT WILKINS WOOD ENGINEERING- SURVEYING EXISTING CONDITIONS PLAN LAND PLANNING incorPor�ted DRAivN er ASP/VFB SCALE � , ,� L %20 � „ 'DRAIYING 03285ENG sNEEr ExPfREs JAN. 9, 2006 � APPROVED MLD DATE JULY 6, 2004, Joss 03285 of STAMP NOT VALID UNLESS SIGNED $ OATED • k1PRO.IECT5103 85 ISILKIN$ y, w 4 W W U � Q w� J Q� CB --T PE �: RIM= 61.32 a I.E. (1\)= 459.82 3 ,I I I I.E. ()= 459.16 o I.E. (W)=: 460.22 g REV. NO. DATE DESCRIPTION APPROVED } LEY-MORROW-'POBLETE INC. `L`E"F DA DREAMCRAFT HOMES �� _ 726. wa -AUBURN WAY NORTH 215 EAST MEEKER, KENT, WA 98032 OF AUBURN, WASHINGTON 98022 �•`` PHONE: (253)333-2200 FAX: (253)333--2206 PHONE No. X253} 859-9697 0 PROJECT WILKINS WOOD ENGINEERING- SURVEYING EXISTING CONDITIONS PLAN LAND PLANNING incorPor�ted DRAivN er ASP/VFB SCALE � , ,� L %20 � „ 'DRAIYING 03285ENG sNEEr ExPfREs JAN. 9, 2006 � APPROVED MLD DATE JULY 6, 2004, Joss 03285 of STAMP NOT VALID UNLESS SIGNED $ OATED • k1PRO.IECT5103 85 ISILKIN$ y, A- 1 I ; ,::� F-9 _�,f•a �e61g, J� ;��� §��':. �� �4��,'r�.'.i �����il>>� �'�.,���--�A �. f i 1 I ; ,::� F-9 _�,f•a �e61g, J� ;��� §��':. �� �4��,'r�.'.i �����il>>� �'�.,���--�A �. f t,. t 6 k X 1 I ; ,::� F-9 _�,f•a �e61g, J� ;��� §��':. �� �4��,'r�.'.i �����il>>� �'�.,���--�A �. REMOVE EXISTI YARD DRAIN 00 48C FV 4+00 REMOVE PIPE SECTION UP TO N W CB N o.10 I � Z �3g% 1 2„ 51. 1111111� -- -----GC . --,-------- 2 CONC. TO BE REMOVED EX. DITCH TOB REMOVED 246.3±LF LCPE @ 0.6 ABANDONED 12" CONC. PLUG ENDS WATERTIGHT W/ CONCRETE CON'RACTOR TO FIELD VERIFY C014TACT ENGINEER IF THERE IS CONFLICT 0 Ob QD DAMP ELEV 455.00 06 QD �t 24+00 -� 480 PVI STA = 2+70 PVl ELEV = 470.17 A.D.=2.00 I K = 80.12 _ EXISTING FINISH GR ADE @ CENTERLINE PROPOSED FINISH GRADE @ FLOW ¢o Q X,:4 Z. EXISTING GRADE Q FLOW LINE EX. 1 " CONC. TO BE EMOVED N + N w ~ Q 25LF 12DI u-a0:3V) @0. 8% PLUG PIPE END WATERTIGHT WITH CONCRETE NEW DITCH 18.5LF 12" LCPE D SLO f EX. DITCH I _ NEW DITCH TO BE REMOVED I.E.= 469.fi'6II.E.= 4 .42 BEVELED END I.E.= 469.10 MATCH GROUND SLOPE 13.1 LF 12" DI EX. DITCH , 0 0.50% TO BE REM VED ,_._- CB No. 1 -- TYPE I ._--- EX. DITCH • -- I % TO BE REMOVED W/SOLID LOCKING LID �..aZ � STA. 26+ 0.82, 14.22 LT. i CB No. 12- TYP I RIM EL.= 471.7 �� 1� STA, 26+10.321 14.22' 1,T. EX. 12" CONC. I.E.= 469.',49 48 6110 GR.= 470. 1 TO BE REMOVED �' -I.E.= 467. 1 o >-: ~ I I I M 2� II U > cv w I z+ FROM OVERFLOW W MANHOLE W cv 30, 2LF - 12" LCPE @ 1.82% 0° I i cn CB No. 11- T E 11--48" STA. 24+61.791 18.19' LT. GR.= 468,14 I.E.= 463.36 EXIST. GRADE @ CL PROPOSED GRADE @ FL o0 4� 00(10 Q 25+00 113th AVE. S.E. PROF-11.'�:E SCALE: 1"=20' HORIZONTAL; 1 "=2'.. VERTICAL 3+00 2+00 S.E. 167th CT. AND TRACT D PROFILE SCALE: 1"=20' HORIZONTAL; 1"=2' VERTICAL 10' PUBLIC UTILITY Cc ESMT. L.P. ELEV = 468.06 L.P. STA 1+39.33 �0 d- P.- 26+00 d- 26+00 30' 5' SDWK. >,,"Ij1, 1.0'2%7:: 00 IAS w12'f 1't SAWCUT SEAL JOINT 5THICK i i �� _2" COMPACTED DEPTH CLASS CEMENT. CONC. (TYP.) "B" ASPHALT CONCRETE ROLLED CURB 1 1/2" COMPACTED DEPTH & GUTTER CRUSHED SURFACING TOP COURSE SECTION A -A Wv 5" COMPACTED DEPTH CRUSHED 4 SURFACING BASE COURSE 113th AVE. S = .. N.T.S. z 13' 13' EX. 12" CONC. ABANDON PIPE i CONTRACTOR TO FIELD RIFY IF THERE ARE NO OTHE CONNECTIONS TO THIS PIPE PRIOR TO ABP' NDONMENT. CONTACT ENGINER IF PIPE CANNOT BE ABANDONED. �2%- -? 2" COMPACTED DEPTH CLASS • • ''"' I:... "B" ASPHALT CONCRETE 1 1/2" COMPACTED DEPTH RLLED CURB CRUSHED SURFACING TOP COURSE j GUTTER 5 COMPACTED DEPTH CRUSHED SURFACING BASE COURSE SECTION C -C TRACT A'. and J� 1.81% )% TO POND DATUM ELEV 1+00 EX. DITCH vLUG PIPE END WATERTIGHT WITH CONCRETE 00 28+00 50.00 VC ------ `t II J L.P. ELEV = 470.15 w L.P. STA = 10+29.67 CN _ PVI STA = 10+50 �-_+ a PVI ELEV - 469.92 rn cn^ �o r• . n o � A.D. --� 10.71 Q a; w �t T- 'q- K= 4.67 Min � �II \ wLd \ U U N ll• > W \ ¢ W w o � w s0 \ d- I'`- O > > Z + I-" I¢_• • z V) oa LL_ V) .00% 470 -To 4 � � I \j 12" LCPE i Al CB No. 9r- TYPE I THROUGH CUB INLET STA. 10+29.679 11,04' RT. GR. i 470.04 I.E.T 467.04 CB No. 8- T E I 22.1LF 12" LCPE 07.42% THROUGH CURB INLET PROPOSED GRADE ®� -- EXIST. GRADE @ In co`� d n dam' 1111=41111 �' CMWL/ TRACT A PROFILE STA.. 10+29.67` 11.04 LT. GR.= 469.93 I.E.= 465,40 43.1 LF 12" LCE CSD 7.89% TO PON DATUM ELEV 400.00 0 CO d- 10+00 SCALE: 1"=20' HORIZONTAL;. 1 = 2' VERTICAL 10' PUBLIC UTILITY CCi+AT �c �,Vfflf-M, iLv vcr in �,�r�a.� . _ �5 IHIUK "B" ASPHALT CONCRETE CEMENT. CONC. (TYP.) ' ROLLED CURB 1 1/2" COMPACTED DEPTH � &GUTTER CRUSHED SURFACING TOP COURSE 5" COMPACTED DEPTH CRUSHED KING COUNTY D.D.E.S. Review Engineer Completion Date Adz. &;na4, z&-�•-o .S for n in Completion Date - � A�2 /Q�__ J H. S NDERS, P.E. A r al Date DEVELOPMENT ENGINEER Comments: AAA SURFACING BASE COURSE , SECTION B -B S.E. 167th CT. 7106 . N. T. S. REV NO. DA Z E DESCRIPTION DALEY-MORROW-POBLETE, INC. CLIENT DREAMCRAFT .HOMES �'v1 ( 72,0 AUBURN WAY NORTH NT A 98032 yi AUBURN, WASHINGTON 98022 215 EAST MEEKER, KENT, W _ PHONE No. 253) 859---9697 APPROVED ENGINEERING - SURVEYING STREET AND STORM PROFILES �o A E� c L LAND PLANNING 1 n c a r p ca r a 1-i ted DRAWN BY n S P /,SIF,B SCALE 1 i 20' DRAIVINC 0 3 2 8 5 E N G 5N�'£T 5 EXPIRES JAN. 9, 2006 I STAMP tvoT VALID UNLESS SiGN�D &DATED APPROVED MLD DArE JULY 6 , 2 0 0 4 '108 {} 3 2 g�� of 10 27+00 o > aQ00 w„,oGRIND EX. PVMT 1 THICK wWITHIN OVERLAY.LIMITS (SEE PLAN).470 OVERLAY WITH 1AC. 5THICK i i �� _2" COMPACTED DEPTH CLASS CEMENT. CONC. (TYP.) "B" ASPHALT CONCRETE ROLLED CURB 1 1/2" COMPACTED DEPTH & GUTTER CRUSHED SURFACING TOP COURSE SECTION A -A Wv 5" COMPACTED DEPTH CRUSHED 4 SURFACING BASE COURSE 113th AVE. S = .. N.T.S. z 13' 13' EX. 12" CONC. ABANDON PIPE i CONTRACTOR TO FIELD RIFY IF THERE ARE NO OTHE CONNECTIONS TO THIS PIPE PRIOR TO ABP' NDONMENT. CONTACT ENGINER IF PIPE CANNOT BE ABANDONED. �2%- -? 2" COMPACTED DEPTH CLASS • • ''"' I:... "B" ASPHALT CONCRETE 1 1/2" COMPACTED DEPTH RLLED CURB CRUSHED SURFACING TOP COURSE j GUTTER 5 COMPACTED DEPTH CRUSHED SURFACING BASE COURSE SECTION C -C TRACT A'. and J� 1.81% )% TO POND DATUM ELEV 1+00 EX. DITCH vLUG PIPE END WATERTIGHT WITH CONCRETE 00 28+00 50.00 VC ------ `t II J L.P. ELEV = 470.15 w L.P. STA = 10+29.67 CN _ PVI STA = 10+50 �-_+ a PVI ELEV - 469.92 rn cn^ �o r• . n o � A.D. --� 10.71 Q a; w �t T- 'q- K= 4.67 Min � �II \ wLd \ U U N ll• > W \ ¢ W w o � w s0 \ d- I'`- O > > Z + I-" I¢_• • z V) oa LL_ V) .00% 470 -To 4 � � I \j 12" LCPE i Al CB No. 9r- TYPE I THROUGH CUB INLET STA. 10+29.679 11,04' RT. GR. i 470.04 I.E.T 467.04 CB No. 8- T E I 22.1LF 12" LCPE 07.42% THROUGH CURB INLET PROPOSED GRADE ®� -- EXIST. GRADE @ In co`� d n dam' 1111=41111 �' CMWL/ TRACT A PROFILE STA.. 10+29.67` 11.04 LT. GR.= 469.93 I.E.= 465,40 43.1 LF 12" LCE CSD 7.89% TO PON DATUM ELEV 400.00 0 CO d- 10+00 SCALE: 1"=20' HORIZONTAL;. 1 = 2' VERTICAL 10' PUBLIC UTILITY CCi+AT �c �,Vfflf-M, iLv vcr in �,�r�a.� . _ �5 IHIUK "B" ASPHALT CONCRETE CEMENT. CONC. (TYP.) ' ROLLED CURB 1 1/2" COMPACTED DEPTH � &GUTTER CRUSHED SURFACING TOP COURSE 5" COMPACTED DEPTH CRUSHED KING COUNTY D.D.E.S. Review Engineer Completion Date Adz. &;na4, z&-�•-o .S for n in Completion Date - � A�2 /Q�__ J H. S NDERS, P.E. A r al Date DEVELOPMENT ENGINEER Comments: AAA SURFACING BASE COURSE , SECTION B -B S.E. 167th CT. 7106 . N. T. S. REV NO. DA Z E DESCRIPTION DALEY-MORROW-POBLETE, INC. CLIENT DREAMCRAFT .HOMES �'v1 ( 72,0 AUBURN WAY NORTH NT A 98032 yi AUBURN, WASHINGTON 98022 215 EAST MEEKER, KENT, W _ PHONE No. 253) 859---9697 APPROVED ENGINEERING - SURVEYING STREET AND STORM PROFILES �o A E� c L LAND PLANNING 1 n c a r p ca r a 1-i ted DRAWN BY n S P /,SIF,B SCALE 1 i 20' DRAIVINC 0 3 2 8 5 E N G 5N�'£T 5 EXPIRES JAN. 9, 2006 I STAMP tvoT VALID UNLESS SiGN�D &DATED APPROVED MLD DArE JULY 6 , 2 0 0 4 '108 {} 3 2 g�� of 10 28+00 50.00 VC ------ `t II J L.P. ELEV = 470.15 w L.P. STA = 10+29.67 CN _ PVI STA = 10+50 �-_+ a PVI ELEV - 469.92 rn cn^ �o r• . n o � A.D. --� 10.71 Q a; w �t T- 'q- K= 4.67 Min � �II \ wLd \ U U N ll• > W \ ¢ W w o � w s0 \ d- I'`- O > > Z + I-" I¢_• • z V) oa LL_ V) .00% 470 -To 4 � � I \j 12" LCPE i Al CB No. 9r- TYPE I THROUGH CUB INLET STA. 10+29.679 11,04' RT. GR. i 470.04 I.E.T 467.04 CB No. 8- T E I 22.1LF 12" LCPE 07.42% THROUGH CURB INLET PROPOSED GRADE ®� -- EXIST. GRADE @ In co`� d n dam' 1111=41111 �' CMWL/ TRACT A PROFILE STA.. 10+29.67` 11.04 LT. GR.= 469.93 I.E.= 465,40 43.1 LF 12" LCE CSD 7.89% TO PON DATUM ELEV 400.00 0 CO d- 10+00 SCALE: 1"=20' HORIZONTAL;. 1 = 2' VERTICAL 10' PUBLIC UTILITY CCi+AT �c �,Vfflf-M, iLv vcr in �,�r�a.� . _ �5 IHIUK "B" ASPHALT CONCRETE CEMENT. CONC. (TYP.) ' ROLLED CURB 1 1/2" COMPACTED DEPTH � &GUTTER CRUSHED SURFACING TOP COURSE 5" COMPACTED DEPTH CRUSHED KING COUNTY D.D.E.S. Review Engineer Completion Date Adz. &;na4, z&-�•-o .S for n in Completion Date - � A�2 /Q�__ J H. S NDERS, P.E. A r al Date DEVELOPMENT ENGINEER Comments: AAA SURFACING BASE COURSE , SECTION B -B S.E. 167th CT. 7106 . N. T. S. REV NO. DA Z E DESCRIPTION DALEY-MORROW-POBLETE, INC. CLIENT DREAMCRAFT .HOMES �'v1 ( 72,0 AUBURN WAY NORTH NT A 98032 yi AUBURN, WASHINGTON 98022 215 EAST MEEKER, KENT, W _ PHONE No. 253) 859---9697 APPROVED ENGINEERING - SURVEYING STREET AND STORM PROFILES �o A E� c L LAND PLANNING 1 n c a r p ca r a 1-i ted DRAWN BY n S P /,SIF,B SCALE 1 i 20' DRAIVINC 0 3 2 8 5 E N G 5N�'£T 5 EXPIRES JAN. 9, 2006 I STAMP tvoT VALID UNLESS SiGN�D &DATED APPROVED MLD DArE JULY 6 , 2 0 0 4 '108 {} 3 2 g�� of 10 GENERAL NOTES ACCORDANCE WITH THE KING COUNTY n,\pjRlj TION SHALL BE IN AC ALL [�114G COUNTY ROA® STANDARDS (KCRS), AND THE KING COUNTY CODE (KCC), LL BE THE 0 COUNCIL'S CoviDITIONS OF PRELIMINARY SUBDIVISION APPROVAL. IT SHA SOLE RES OF THE APPLICANT AND THE PROFESSIONAL CIVIL ENGINEER CT ANY ERROR, OMISSION, OR VARIATION FROM THE ABOVE TO CORRECT REQUIREMENTS FOUND IN THESE PLANS. ALL CORRECTIONS SHALL BE AT NO ADDITIONAL COST OR LIABILil -Y TO KING COUNTY. 41 .4 THE DESIGN ELEMENTS WITHIN THESE PLANS HAVE BEEN REVIEWED 4 NMENTAL 2 P DEVELOPMENT AND ENVIRO OTNAr:NIT 4 ACCORDING To KING COUNTY L)F-r-,-% SERVICES (DDES) ENGINEERING REVIEW CHECKLIST. SOME ELEMENTS MAY HAVE ADOPTED STANDARDS IS NOT ALLOWED UNLES3 SPECIFICALLY BEEN OVERLOOKED OR MISSED BY I -FIE DDES PLAN REVIEWER. ANY VARIANCE `3 FROM ADOPTED BY KING COUNTY PRIOR TO CONSTRUCTION. 3. APPROVAL OF THIS ROAD, GRADING, AND DRAINAGE PLAN DOES NOT CONSTITUTE AN APPROVAL OF ANY OTHER CONSTRUCTION (eg., DOMESTIC WATER CONVEYANCE, SEWER CONVEYANCE, GAS, ELECTRICAL, ETC.). 4. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY, A PRECONSTRUCTION MEETING MUST BE HELD BETWEEN THE DDES LAND USE INSPECTION SECTION, THE APPLICANT, AND THE APPLICANT'S CONTRUCTION REPRESENTATIVE. 5. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS IN PROGRESS. 6, CONSTRUCTION NOISE SHALL BE LIMITED IN ACCORDANCE WITH KING COUNTY CODE (SECTION 12.88); NORMALLY, THIS IS 7 A.M. To io P.M. ON WEEKDAYS AND 9 A.M. TO 10 P -M. ON WEEKENDS 7. IT SHALL BE THE APPLICANT'S/CONTRACTOR'S RESPONSIBILITY TO BTAIN ALL CONSTRUCTIONEASEMENTS NECESSARY BEFORE INITIATIITE WORITHIN THE ROAD RIGHT-OF-WAY. B. FRANCHISED UTILITIES OR OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS THAT MEETS ALL REQUIREMENTS OF K(,RS CHAPTER 8 IS SUBMITTED TO THE DDES LAND USE INSPECTION SECTION THREE DAYS PRIOR TO CONSTRUCTION. 9. DATUM SHALL BE NAVD '1988 UNLESS OTHERWISE APPROVED BY DDES. 4" CEMENT CONCRETE 0 0 C) 0 o 0) 0 A 00 0 00 4 00 0 0()0 --I' as 0 o 110 o 0 oo" oo()O 0 00000() ()000 0 00 0 ()o ? �O PY SIDEWALK AND RAMP 112 2' 4 19 K 323) FRONT REAR 0 21 MIN. FOR TRUNCATED DOME SECTION PVtviT. TEXTURE (SEE NOTE) 0 0 PAVED WALKWAY (SEE SSI T. 10) SECTION A -A NOTES: RAMP SHALL BE 11--XTURED USING TRUNCATED DOME PATTERN (SEE CURB RAMP DETAIL) 10. GROUF,10WATER SYSTEM CONSTRUCTION SHALL BE WITHIN A RIGHT-OF-WAY r"'T le% VED WALKWAnP PPR pjdATE DRAINAGE EASEMENT, BUT NOTUNDERNEATH nH E r�nRnatvc`F CEMENT CONCRETE TRANSIj i uN �'�T�� 1--rr--n SECTION. ALL GROUNDWATER SYSTEMS MUSI bt �,ujlz)lrskj WITH SECTICkl 131 3.02 OF THE APWA STANDARD SPECIFICATIONS. 11. ALL UTILITY TRENCHES SHALL BE BACKFILLED AND COMPACTED TO 95 PERCENT DENSITY. 12. ALL ROADWAY SUBGRADE SHALL BE BACKFILLED AND COMPACTED TO 95 PERCENT DENSITY (WSDOT 2-06.3). 13. . OPEN CUTTING OF EXISTING ROADWAYS IS NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY DDES AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH KCRS 8.03(B)3. I . 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARDS, SAFETY DEVICES, PROTECTIVE EQUIPMENT, FLAGGERS, ANDA ND ANY OTHER NEEDED ACTIONS TO PROTECT THE LIFE, HEALTH, AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNECTION WITH THE PERFORMANCE OF WORK COVETED 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. SECTION -1-07.23,IN "TRAFFIC CONTROL," OF THE WSDOT STANDARD SPECIFICATIONS SHALL APPLY ITS ENTIRETY. STRUCTURAL NOTES i) THESE PLANS, ARE APPROVED FOR STANDARD ROAD AND DRAINAGE IMPROVEMENTS ONLY. PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAIVIING WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL. BY DDES PRIOR TO CONSTRUCTION (KCC 16.04, 16.70, 14,20). 2) ROCKEWES ARE CONSIDERED TO BE A METHOD OF BANK '---,)TABERVE ILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SAS RETAINING WALLS. ALL ROCKERIES IN COUNTY ROAD RIGHT-OF-WAY SHALL BE ACCORDANCE WITH KCRS DRAWING NUMBERS 5-004, 5-005, CONSTRUCTED IN UTSIDE OF ROAD RIGHT-OF-WAY SHALL BE 5-006, AND 5-007. ROCKERIES 0 CONSTRUCTED IN ACCORDANCE WITH THE UNIFORM BUILDING CODE. DRAINAGE NOTES 1. PROOF OF LIABILITY INSURANCE SHALL BE SUBMITTED TO DOES PRIOR TO THE PRECONSTRUCTION MEETING (KCC 9.04.100-D). 2. ALL PIPE AND APPURTENANCES SHALL BE LAID ON A PROPERLY PRE- PARED FOUNDATION IN ACCORDANCE WITH WSDOT 7-023(1). THIS SHALL INCLUDE LEVELING AND COMPACTING THE TRENCH BOTTOM, THE TOP OF THE FOUNDATION MATERIAL, AND ANY REQUIRED PIPE BEDDING TO A UNIFORM GRADE So THAT THE ENTIRE PIPE IS SUPPORTED BY A UNIFORMLY DENSE UNYIELDING BASE. 13. STEEL PIPE SHALL BE GALVANIZED AND HAVE ASPHALT TREATMENT #1 OR BETTER INSIDE AND OUTSIDE (KCRS 7.03). 4. 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 (KCRS 7.05). 5. ALL CATCH BASIN GRATES SHALL CONFORM TO KCRS DRAWNG NUMBERS 2-013, 2-018, 2-019, OR 2-020, AND SHALL INCLUDE THE STAINPING "OUTFALL TO STREAM, DUMP NO POLLUTANTS" AND "PROPERTY OF KING COUNTY" (KCRS 7.05). 6. ALL DRIVEWAY CULVE[RTS LOCATED WI���VI�I�GAC� UNTY RIGHTOFWAY SHALL BE OF SUFFICIENT LENGTHTONIMUM 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 SLOPE (KCRS 7.03(L), DRAWING NO. 2-001). 7. ROCK FOR EROSION PROTECTION OF ROADWAY DITCHES, WHERE RE- OUIRED, MUST BE OF SOUND QUARRY ROCK, PLACED TO A DEPTH OF I FOOT, AND MUST MEET THE FOLLOWING SPECIFICATIONS: 4"-8"/40-701 PASSING; 213-4" ROCK/30-40% PASSING; AND 2" MINUS ROCK/10-20% PASSING. INSTALLATION SHALL BE INACCORDANCE WITH KCRS 7.02(0) DRAWING NO. 2-024. 8. DRAINAGE OUTLETS (STUB-OUTS�IAAPPI��}VEDOF� ®N1Fi��RAT INDIVIDUAL LOT; EXCEPT FOR THOSE LTS ION BY KING COUNTY. STUB -OUTS SHALL CONFORM TO 'THE FOLLOWING: A) EACH OUTLET SHALL BE S�`I�ASB�RVICaEC Y ®FUTUREEROOF ELEVATION ON THE LOT, SO AS ALDOWNSPOUTS 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. B) OUTLETS ON EACH LOT SHALL BE LOCATED WITH A FIVE -FOOT -HIGH, 2"x 4" STAKE MARKED "STORM" OR "DRAIN." THE STUB -OUT SHALL EXTEND ABOVE SURFACE LEVEL, BE VISIBLE, AND BE SECURED TO THE STAKE. C) PIPE MATERIAL SHALL CONFORM To UNDERDRAIN SPECIFICATIONS DESCRIBED IN KCRS 7.04. IF NON-METALLIC, THE PIPE SHALL CONTAIN WIRE OR OTHER ACCEPTABLE DETECTION. D) DRAINAGE EASEMENTS ARE REQUIRED FOR DRAINAGE SYSTEMS DESIGNED TO CONVL 'Y FLOWS THROUGH INDIVIDUAL LOTS. E) THL- APPLICAN T/CONTR ACTOR IS RESPONSIBLE FOR COORDINATING THTIES E LOCATIO115 OF ALL STUB -OUT CONVEYANCE LINES WITH RESPECT TO . UTILI (e.g., POWER, GAS, TELEPHONE, TELEVISION). F) ALL INDIVIDUAL STUB -OUTS SHALL BE PRIVATELY OWNED AND MAIN- TAINED BY THE 1OT HOME OWNER. N.T.S. ASPHALT CONCRETE CLASS 8 (3" MIN.) REPLACEMENT PATCH TO BE 1" THICKER THAN PREMOUSLY FINAL JOINT MUST EXISTED. BE SAW CUT I 1 L2: EXIST. ASPHALT CONCRETE , MIN. ol I ....................... ........... 1/2" MIN, COMPACTED CRUSHED 0 0 0 ®ap 00 0NOTES: 0O'D 0 0 0 0 0SURFACING TOP COURSE 0 ®o 0 1. ALL TRENCHES IN ROADWAY AREAS - �, o 6) 0 o SHALL BE BACKFILLED EACH DAY, C0?v1PACTCD CRUSHED 00 0 0 0 0 a 0 UNLESS PERUSSION IS GRANTED TO DO ROCK BACKFILL 0 0 as 0 0 0 Od OTHERWISE BY THE COUNTY ENGINCER AND -0TRAFHC ENGINEE-R. 2. ALL JOINTS BETWEEN THE NEIN VARIES EXIST. ASPHALT PAVEMENT SHALL BE PAINTED WTH HOT ASPHALT OR ASPHALT EMULSION, 3. ALL TEMPORARY PATCHES ON TRENCHES SHALL BE PERMANENTLY PATCHED WITHIN TWO (2) WEEKS OF COMPLETION OF WORK WITHIN THE ROADWAY AREA. N.T.S. -F 4' HIN. DING K, Ml N I . ........... NOTF-5: FLU . SH 1,03 9. RATS q4[) APPROACHES HAVE MIN144UM 4:_M 32 PA. CLEARANCE FROM C-BS7AC11�3 lNCL _7_ HyViA1475, poas, MID INLUS1512,1=11 7-7, - �1. SP RAMP 5HALl. BE TEXrURED U51NO TPVNCATED OHM 3/B EXANME QOMF PATERN. (SEF. DETAL UCLMY.) 4,1 TjjjCj( CEMENT G-oNGRtTE S10CWALK 3. pNAp CF_,NjEft UNC SH&L BE PERPENNCULAR jo ()fi RAVAL ro r-uRa RETURNS UNLESS 10 OTI°ja4MSEAppp r. .0,4[) i3y 1341* CGUNW ROAD CIAONEeR. FLUSH- 12-1 - : I , , w I. �­ 4, WpS s�w_L P -C CONSTRUCIED AT !�� , I, I �,� I I .7L CORRE3PONOiNG SIONALK LOCOONS ORE Do Off>05ffE 51DF OF MWS WHEN a USPANSION JOINT RANW5 ARE QGWRUCTED ON ONE 510Z 4." THICK CWDff CONCRCM SIDUMA OF simar, sa-Flo. 3-006. TI o N W Sa JQJ R U LAMUNG 5IpLL BE �AINIMUM 4 X 4'- (REFER TO FIG. 3-008.) S. RAPAPS SVALL. DE C0t`1rRASflNG COL(JR OF UI M TO 0ARK OR DAM TO UGHT AhD CGtDMP4G hlU'9T BE M 04TECiRAI-M z35,, L PART OF THE RAMP. 2,359 e'95, 2.3a, A, A. �' Lt Z51 SQUA E rFA:T;TlERlll SQUARE PATTZRN TRIANGULAR FATrERN DIAGONAL AUG NT PARALLEL ALIGNMENT USC Do �A N.T.S. FRONTSECJ101� NOTES: 1. MAILBOX CLUSTERS ARE' DESIGNED TO SERVE 8, 12, OR 16 UNITS, 2. CONTACT POSTMASTER PRIOR TO INSTALLATION. 18.5" I TOP I - .-- TO 0 1�, P. `LUSTER BOX C11 , . 4 -14 . 4 1, UNIT DETAIL 18" SIDE SECTION MAILBOX (vIOUNTING CURB TYPE LOCATTON N TS 0 CEMENT CONCRETE 10'" 2 3 1/2"- SIDEWALK 0.02 FT./FT, SLOPE 0.02 FT. /FT. a A .............. A J 4 4 4 4 0 clq 4 + :4 Ap 45 (_,!ffldFjNrT CONCRETE R0fjLED 'evURB & G`ur`TTES� u INTEGRAL POUR 3 3 ---TPt\NSITION--- VERTICAL CURB TRANS]TlOfll- -------------- ECTION SECTION PLANTING STRIP OR SIDEWALK Bl\CK OF CURB FLOW LINE DUMMf JOINT(TYP.) L )F CURB THROUGH -CURB INLET 48" Notice Board Construction Specifications: NOTICE OF P _ SED The notice board shall be constructed with 4' x 4' x 1/2 plywood, exterior U T grade, good surface one side. Professionally prepared plastic board overlays, permanently offixed to the board are permissible. The notice board shall dispia y ACTIVITY the infor-r-nation cis shown in the figUre and as specified at the pre --construction meeting. Notice boards may be reused but they must be clean and show no King County evidence of former wording. Department of Devetopment & Environmental, Services 1. Lettering style: Helvetica or similar standard typeface 900 Oakesda(e Ave SW Renton WA 98055-1219 2. Lettering size: Title should be 3" capital letters (NOTICE OF CONSTRUCTION ACTIVITY). Other letters should be 2 Type of Action: letters. See illustration above for use of capital and Project No: lowercase letters. Description: 3. Lettering: Black (permanent ink or silk-screen) Project Completion Date: 4. Background Color: White Hours of Construction: 5. Logo: King County emblem, in black King County's Contact Person: The applicant/developer shall erect the notice board by slightly setting .two 4 x Phone lNumber: 4 1) posts 12 to 24 inches into the ground: or struCtUrcilly attaching it to an existing building. Post length shall be at least 7 feet above grOUnd. Two 2" x Developer's Contact Person: 4 $t diagonal braces should be nailed to the inside back of the posts and staked Phone Number: at the ground to provide stability against wind or soft soils conditions if posts are less than 24 inches into the ground. The notice boord shall be attached to the posts with four log bolts and washers (3/8 -inch diameter arid 3" long). Notice Board Location: The notice board shall be located: a) At the midpoint on the site street frontage or os otherwise directed by DDIES staff to maximize visibility. x637 b) At a location 5 -feet inside the street property line; a notice boar structurally attached to an existing building shall be exempt 'from setback provisions, provided that the notice board is located not more than 5 feet frorn the properly line without approval from DDES staff. c- So that the top of the notice board is between 7 to 9 feet above grade. d So that it is totally visible to pedestrians. Maintenance and, Removal of Notice Board: The applicant/developer shall maintain the notice board in good condition throughout the site improvement construction period, which shall extend through ///. \/i'\/e/\///\\///� f//�\///\%//�,///,� , /\///�///\i %\ %/�\ the time of final construction approval by King County DDES or its successor agency or jurisdiction. The notice board shall be rernoved within 14 days after final construction approval. Early removal of the notice board may result in enforcement actions authorized under King County Code, Title 23 and may delay final construction 24)) approval. SEE LOCATION SHEET 4 Ic�orrsz��r�crroryC"VITr srcN h lelt-ffl-I AJ'Ii XNO"',Iri ull, 5' - 0' VARIES R.O.W. LINE VANED GRATE 0.02 FT./FT z 7 t rp ff p "T FRAM AND C (IRB INLE RATE I? D,LLED CUFCJ3 1 N. r. & I L NSTALLATIO"N 0.02 FT./FT. \-CEMENT CONCRETE DRIVEWAY 5" THICK SECTION A z 77 ___ _7 �11 ZX NOTES: CEMENT CONCRETE DRIVEWAY 5" THICK 1. COMMERCIAL INDUSTRIAL DRIVEWAYS WIDER THAN 35MAY BE APPROVED BY THE ENGINEER CONSIDERING TRAFFIC SAFETY AND NEEDS OF THE ACTIVITY SERVED. ALL COMMERCIAL/ ��� �-��A��� RIVEWAYS SHALL HAVE AN EXPANSION JOINT SE CTION A A -WIDTH. SEESEC. 3.04. NOTES: 2. SEE SECTION 3.01 KCRS. 1. A REVERSE SLOPE DRIVEWAY IS SUBJECT TO APPROVAL BY 3- SEE SECTION 4.01 FOR SURFACING REQUIREMENTS. THE ENGINEER CONSIDERING NEED FOR AND COMPATIBILITY OF THIS FEATURE. 2. COMMERICAL/INDUSTRIAL DRIVEWAYS WIDER 'THAN 35' MAY RIGHT-OF-WAY LINE BE APPROVED CONSIDERING TRAFFIC SAFETY AND NEEDS OF THE ACTIVITY SERVED. VARIES 7 3. A STORM SEWER INLET SHALL BE LOCATED WITHIN 20' BUT < NO CLOSER THAN 10' UPGRADE FROM NEAREST EDGE OF SIDESLOPE. 4. SEE SECTION 3.01 KCRS. .11:4-1 5. SEE SEC. 4.01 FOR SURFACING REQUIREMENTS. 31 ROGHT-OF-WAY LINE 7 SIDEWALK lia VARIABLE PLANTING STRIP, IF ANY Ir 7 Ylk lz SIDEWALK VULLibli c URB & G, u TTER TRACT ENTRAN E' !!!l!l&11j11,jjj_ w N.T.S. x\, kOLLED CURB & GU7"TL'R TRACT' D ENTRANCE REVERSE' SLOPE DEVELOPMENT ENGINEER Cornments: N.T.S. DAEY- MORROW-POBLETE7 INC. 726 AUBURN WAY NORTH AUL3URN, WASHINGTON 98002 PHONE: (253)333-2200 1=AX: (250)333-2206 ENGINEERING - SUAVEYING LAND PLANNING PROJECT WILKINS WOOD APPPOVED r f f,i;iljllo�; I .®'...........y....` . ........... y.'....... Zj 48" SELF-LOCKING SOLID COVER CT�1hIr �r�I � �. ........... ........... �,. ... ...... ...... MARKED DRAIN .......� .... .'.'.'.".'. �.:.:.:.:..... ..... -- - Er �0 rr I RIM 469. ,..... 1.'.'........... .. I ,r 9�»y,.� REACH ROE) �-•i ..,. �s�,{ REI�IOVEABI._E v.^+✓- °. •. .�. .•..... ... )� a .. . .. ... •. � � ... •. ��....... � IiIIN. 9 1D {^ -SPP ,.....r ........ (TYP.) PIPE �UPPORT(S}: �, x.090 GAUGE WATERTIGHT .'.' ."�'..'..`......'.. ........ - ..... ..... ,/ 1.o' LONG VERT. GRATA - �" � i�" MAX. BOLTED OR IMBEDDED 2" IN WALL COUPLING �® $, . ' ' ' - .'... ` '...'..'..' j : = .. I � .. .... �__ SPACE BAR'S Q9 4" O,C. � : � ' ; . ��w._- AT MAX. 3' SPACING. MIN. I SUPPORT �............. .......... ... ..... ......... 4 •' . . . , _'............... .'.'.'.'.'..'..'.'.'r�� i.'. �'- Or � pond i our care. - !....... DEPT. POND MAX{ O.Q. EL. �- 467.00 �--�-- -- j a EL. 467.00 � F Runoff stored and slowly' x lemed %o I ond. 11b helpsrevert ©. I _ _j Pond downAre floand eyo on .d .,� ! STAND. GAS V. 1 3/8" ORIFICE EI = 466 25 f 4� : Lai, I '.".'.' s; ... �4„ hl prove aE�r q�ty to Puget d. STEEL LADDEF�/STEP (TYP) .; :�' PLATE WITH _ 4; - For more : tion or to report liter , � � 1 3/� � �--- -- ;-� _ d and other larD l �, Department FROP�-T ORIFICE .�.;801Y I���LL'TAIL � i , U� SHEAR GATE r -1464-. of Natural eno e F eititi s ,I t ee at N. T. S. r A CA ® _ " TYP.) I 11.6LF` 12" LOPE 206-6100 24.3LF � � LOPE � OTC �'..'. X20 CJ 10 20 o.o ff .1j, / i_ / rE �. CI�iP �' OUT TO COVERFLO`r�l MH �� k FEET) aw a Pond Na .d unb r $\ � � �� ( IN ��`T }i RISER - �`�� .... _ .. r�ir� C,NIR TO LOPE ADAPTER .... .....1 incl 20 ft. ., .� ..... ..... ..,�.. ................. .. ..,..,.... ..�..,.....,.: l C�L�OGY BLOCKS �. ...( ',.1 �< I ......... ....... ` B iTa�EL P'� ref 2 ®0.. 1 `�-�-� c� I.E.= 464.00 NOTES: SEE TE ,� 45v�0� r, IES. . �] r W r '` �� �A� P.q.... f I.E. 44.i�0 q. r EME uVEREL�� r 1. METAS PARTS; CORROSION RESIrAr!T. f GALVANIZED PIPE PART. TO HAVE ASPHALT r,� (E l T �: ." .o� EL.40� - 1 SECTION of PII�'I* TREATMENT 1. �m .. ATTACHED BY GASKETED 13:1 k r .,..'.'.R�9 18TYP. ;2' ISN BAND TO ALLOW REMOVAL. 2. FRAME & LADDER OR STEPS OFFSET SO T A T LINE t A. CLEANOUT GATE IS VISIBLE FROM TOP. ! 8. CLIMB -DOWN SPACE IS CLEAR OF RISER AND LI .. fag LOPE 1 MIN -' RE STRICTOR PLATE* WITH IaLEAI`FouT GATE. I , I 3/8"0 ORIF=ICE. _.,. - :. I • • 3. IF METAL OUTLET PIP r' E co}�>!NE�CTS To CEMENT _ 1 ' CONCRETE~ PIPE, OUTLET PIPE TO HAVE SMOG [H 'a .. 1 6 1 L. I E m•��%yyp�` j��j'�_ f" V ......I . ( EE BTL) O.D. ToCONCRETEPI I LESS E: I D ¢ _/ .. .01>� ��RFLOW MA � LE � a - 14701 \ 24.3L 1 C E 1' ' .... ;: r ' 46,9' I SPECIFICATIONS: _ �t ,. 0'.- ATF 12" LE 1.82% Iz�:'°rIDI~ I�r�" HIGH ._ y�- I,� ' . HAINLINK FENCE o p- �' �..:........ .'.".'.'.".'. (SEE MATERIAL: .126 MIN. GAUGE ALUMINUM � INFORMATION PLATE. BRASS STAINLESS E PLATE SHALL BE PERMANENTLY ATTACHED INSIDE 4� A A S OR TAIN ESS ST EL ... ® 24 MIN .�r [k] -. - A "' '.'.' E'. pT W/ S SECTIONS FACE: NDN REF=LECTIVE VINYL OR 3 COATS OUTDOOR ENAMEL -(SPRAYED) EACH CONTROL STRUCTURE. ENGRAVED INFORMATION ON THE PLATE SHALL i . . ...... INCLUDE THE FOLLOWING: LETTERING: SILT SCREE=N ENAMEL WHERE POSSIBLE, OR VINYL LETTERS ......... ' ........................... ... i.'. i'.','," ®,'"'.'.'.'.'; +��;� NAME AND FILE NUMBER OF PROJECT FACE COLORS: BEIGE; BACKGROUND WITH TEAL LETTERS 1G • •ON-.,FENCE. N Ia EN �' I _ ...... I l,� y NAME AND COMPANY OF (1) DEVELOPER, (2) ENGINEER AND (3) CONTRACTOR '0`7th "T SuE. ,' O ' ��.: _ _ �.�. �� I" :°�- TYP Fit; - �^ ...'E_.� DTLa I' ,,� E F: I IE L �I=TIcA 1roNI�ErFs1=E7: TITLE 3 ; 5iJ3 TITI,Ea t i/2", TExT 1°' �-D1TI� CONSTRUCTED T 'v: - ...... �� r7 ."..."..'.'." � T L I E'.' �..... '. , . ::�; rd.'.1:�,1. Df z. �DA,rE OF MANUAL. USED FOR DESIGN .................................. ....' ..... .. , . o \ BORDER: OUTER BORDER 1/B DISTANCE FROM EDGE: °I/4:, ALL TEXT 1 .......... ..... .' , \"....... --OUTFLOW PERFORMANCE CRITERIA ....'�.....-(" t..�.�'L-)'A �= 4. "�o .'. ...... �up 3/4" FROM BORDER �...... ..... ..'.. I' ' t.l ........ -RELEASE MECHANISM SIZE, 1 Y'E AND INVERT ELEVATION ... .. / -LIST OF STAGE, DISCHARGE AND VOLUME AT ONE --FOOT INCREMENTS .....,'.'.�.�.'.".'.'.'.'........;1....'.'.".'.'.'.•.'.".'.'.�.'.'.'.'.'.'.'.'.'.'.'.'.'.�.'.'.".'.'.'.'.'.'.'.'.'.'.'.'.'.'..'.:�...... ..... .... , ..I ...... . . . ......: � POSTS: PRESSURE TREATED �;��, BEVELED TOPS i 1/�" HIGHER THAN `'' `.' NOTE: SIGN F=ACE; ELEVATION OF OVERFLOW 1. RIPRAP PROTECTION SHALL BE 1' THICK MINIMUM AND HAVE. THE FOLLOWING GRADATION: MAX. STONE SIZE = 8"' MED. STONE SIZE = 6" MIN. STONE: SIZE = 2" 2. GRAVEL ACCESS SHALL BE 6" 11IICK I- - 1 1/2' CRUSHED ROCK. 3, SEAL ECOLOGY BLOCK JOINTS �VITF-I MORTAR. SECURED TO CHAIN LINK FENCE IF AVAILABLE'. OTHERWISE ---RECOMIwrIE111DED FREQUENCY OF MAINTe.1�1ANCE. INSTALLATION: INSTALL ON TWO 4x4 PRESSURE TRE=ATED POSTS MOUNTED ATOP GRAVEL BED, INSTALLED IN 24" CONCRETE FILLED POST NOTE: CONTACT DMP, INC. AT (206)333-2200 FOR SPECIFICS. HOLES S ( " MINIMUM DIA.). TOP OF SIGN NO HIGHER THAN 42" FROM GROUND USE 6 1/2"x3" HOT DIPPED GALVANIZED LAG BOLTS & WASHERS. PLACEMENT: FACE SIGN IN DIRECTION OF PRIMARY VISUAL OR PHYSICAL ACCESS. PLACE AT LEAST 6' FROM PERIMETER OF SITE. DO NOT BLOCK ANY ACCESS ROAD. 00 ,NOT PLACE WITHIN 6' OF STRUCTURAL FACILITIES, E.G. MANHOLES, BIRDCAGES, ETC. PROVIDE RIPE ANCHORS TO POND INLET AND OUTLET ET PIPES IF FIELD CONDITIONS REQUIRE.PERMANENIr"'N~ . GEOMEMBRANE LIFER NOTES: 1, GEOMEMBRANE LINERS SHALL BE UV RESISTANT AND HAVE A MINIMUM THICKNESS OF 30 MILS. A 7HICKNESS OF 40 MILS SHALL, BE USED IN AREAS OF MAINTENANCE ACCESS OR WHERE HEAVY MACHINERY MUST BE OPERATED OVER THE, MEMBRANE, 2. GEOMEMBRANES SHALL BE BEDDED ACCORDING TO 'THE MANUFACTURER'S RECOMMENDATIONS. 3. LINERS SHALL BE INSTALLED SO THAT THEY CAN BE COVERED VIT1 36 INCHES OF TOP DRESSING={;fv'WING T IE BOTTOM AND SIDES OF THE WATER QUALITY. TOP DRESSING SHALL CONSISTS OF 6 INCHES OF CRUSHED ROCK COVERED 1TI-I � #�ICI�E OF" NATIVE ,OIL AMENDED �iTI� GOOD TOPSOIL OR COMPOST (ONE PART COMPOST MIXED NTHPARTS PJATI iE SOIL). THE ROCK LAYER IS TO MARK THE LOCATION OF THE L, 5.`R FOR MR)RE MAINTENANCE OPERATIONS. A AN ALTERNATIVE FO CRUSHED ROCK, 36 INCHES OF NATIVE SOIL FIAT BE USLED IF ORANGE PLASTIC "SAFE7Y FENCING" OR ANOTHER HIGHLY -VISIBLE, CONTINUOUS MARKER IS EINIHEDDED 6 INCHES ,ABOVE THE MEMBRANE, IF POSSIBLE, LINERS SHOULD BE A CONTRAST1N i COLOR SO THAT MAINTENANCE WORKERS ARE AWARE OF ANY AREAS WHERE A LINER MAY HAVE BECOME. EXPOSED WHEN MAINTAINING TIME FACILITY: 5, GEOMEMI RANE LINERS SHALL NOT BE USED ON SLOPES STEEPER THAT 5H:1 V TO PREVENT THE T DRESSING MATERIAL FROM SLIPPING. TEXTURED LINERS MAY BE USED ON SLOPES UP TO 3H:l V UPON RECOMMENDATION BY A GEOTECHNICAL ENGINEER THAT HE TOP DRESSING WILL BE STABLE FOR ALL SITE CONDITIONS, INCLUDING MAINTENANCE 1 :E Lam! c� a:y 0 QED � 6.43' < T Lei �Ld_j 472 _ . �- ___--- ____�-__.� - ___ __ _- 472 EX. GRADE z 470 __ _ _._I. ______ ___ _ _ _ �_ �- - _I��_ 4 7 0 466 4 �-{ STACK 3 - ECOdO' Y BLOCKS i F TI SEAL JOINT FSS W MORTAR LEVEL I EL. 4.65.93 t 41 W. Q. W.S, L. 464.00 F # `ail r 46 4 -4-• 46 4 L w i L tk 462 . T .:� _ __ __ _ .� _w 'r -/ T y462 - $. d # BOT. EL,- 459. + i' ..F s " j F + r .F 4. Y+ r 5 F t J- TOP DRESSIN �' y a i dIJ o- 4 4 •Q v ti i- (SEE MOTES ABOVE + h ''r •F + r -i- s 458- "1'C X k U R ED - 1 'F f •` �EOMElv1BRAl`IC LINER �gia'i I `+L I FD ti r.pi� (SEE NOTL � ABOVE) a. a1 P C %1*4 N r 0.4 " b" EC"T 10 N` A A SCALE: ']"=20' HORIZONTAL; 1"=2' VERTICAL r-460 OT. EL.---- 459.00 4544 LIJ Lif >_ U 0 Ld 472 m_ - zi!. 6.6' :1 EX. GRADE N.T.S. GONTROL Sr_rV1r'-1'rTCTURL' TYPE 11T - 5 4 "0 SCALE: AS NOTED FABRIC BAND NOTES: 1. THE DEVELOPER MAY USE O TFIER TYPES OF LOW PERMEABILITY LINERS PF_ THE OP°iiONS LIVEN IN SECTION 6.2.4.1. OF THE KCS DM. THE COUNTY SHALL APPROVE THE CHANGE PRIOR TO INSTALLATION. 2. PRIOR TO INSTALLING THE LINER, THE DEVELOPER MAY HAVE A GE0TFCHNi=- _ ENGINEER ANALYZED THE PERMEABILITY OF TIME 'SOILS IN THE STORM WATER WETLAND AREA, IF IT IS DETERMINED THAT THE SOILS WILL ALLOW SUFFICIENT RETENTION PER SECTION 6.4,3.2, OF TIME KCSWDM, THEM LINING REQUIREMENTS MAY BE WAIVED BY THE COUNTY, 3. CONTRACTOR SHALL TAKE EVERY PRECAUTION SO AS NOT TO DAMAGE" THE POND LINER DURING THE INSTALLATION OF 1TIE ECOLOGY BLOCKS. IT IS RECOMMENDED THAT A :DOUBLE LAYER OF LINER BE INSTALLED UNDER THE ECOLOGY BLOCKS. THE LINER SMALL BE PROTECTED BY A 1' THICK SHEET OF MARINE PLYWOOD OR EQUIVALENT PRIOR TO SETTING THE ECOLOGY BLOCKS. THE COUNTY INSPECTOR MAY REQUIRE THAT TIME LINER BE REPLACED IF IT IS DAMAGED DURING THE INSTALLATION OF THE ECOLOGY BLOCKS. Ld ; _ LL a- y CE :1 472 472 472 ' 191' 470 j 468 - EMERGENCY OVERFLOW W.S. @ EL.= 467.22 MAX. W.S. @ EL.= 467.00 2 --YR W.S. EL.= 465.93 466 + 41 4 e" ! r W �• } Fr j T + + 4 i k * �¢ W.Q. W.S. @ EL.= 464.00 464 _.��. �. ECOLOGY BLOCKS. SEAL JOINTS W/ MORTAR r F 4'P N IT LEVEL @ EL,= 404.00 + P r�¢T+U' E MORTAR TO REACH EL. 464.00 462 12 LCP E a HORIZ. i' `- }i j }, EMBEDMENT Q k. EL,=463.00(TYP,) BOT. EL.= 459.5 + r� Yr. ; 460 h 4 r d 4 . L .a 'G• } t a T Y . [may_ .s q. .{. ._. TOP D R E S S I N J d i• M :. y r b y. 4 ti. i. F s 4• Y k t{ d (SEE NOTES ABOVE) r r i '' #.y. #Y'�� .�. + y a L + #' Y b i o_ F i' t '.1 d• "'` P W. 45 a✓ -. -.- _.»... F 1. 1• .F 4 Y $ Y v P r N Y :^ k i' a '� � _�.__-.---•-�- TEXTURED # aF if• r -# -f T}r ,F .rf rPatys iGEOMEMBRANE LINERy �.{ iv +ii• , #,(SEE NOTES ABOVE) Lr i `r -rF ruNu �jEU`TKOXNN tw3ft-tr3% te+ Fa + SCALE: 1 X20' HORIZONTAL; 1"=2' VERTICAL 470 4.70 CON 11 1 O I MIH !-^- EX. GRADE 470 468 468 BRACE RAIL 468 T TO ,�AII_ MERGENCY OVERFLOW W.S. @. EL.=. 467.22 CHAIN LINK S"fFtE TCEiEE� BAR 5' FABRIC fJ POST �EL.= MAX. W.S. ( - EL. = 467,00 4 466 466 L 2 -YR W.S: @ E'L.Y 465.93 __ -kT-- - = -..-. S F_I - 466 !. \6 2'x2'.1116' � �_ f� _ "• C�lOY BI�,K EL= 46-7•.00 k T r } r+ W.S.C EL. 464.00 r 464 464 F° + 464 /i/\//%\Y//\'///\i`,//\\�q/y�,:!%/\Y//\\///`'�"�"�: ROUND USE MCRTA T) ROLL .'� ROUND 11 - 2x.") -'x6' M-AC11 EL. 4ffi4.03Ii H -COLUMN ROLL EC LG BLOCKS S 1 +; ROLL FORMED ROUND 462 462 - - _ -------- 1 I?� Z. - 462. Weight EMBED EIS T Weight _ I.D. Weight �1 .=463. 0` YP Weight Weight -�- EL,d461.00 Weight I.D. 11 2 x2' 6' & 1 'x.2'x1) Pipe (Inches) _ _ 1, _CO GY BLOCKS EBED�IENT 460 460 - -- ---- 460 Per Foot (Pounds) Size (Inches) Per Foot (Pounds) Size (Inches) Per Foot (Pounds) ) 50% OVERLAP Per Foot (Pounds) Pipe (Inches) Per Foot (Pal.rnds) TEXTURED 1 1 )4"2.27 GEOMEMBRANE LINER 1.35 1 x 1% 1.35 (SEE NOTE`) ABOVE) 3.65 458 458 1%, 1,� 458 SCALE: 1 "�2®' NCI-:IZONTAL; 1 "�2' VERTICAL END, GATE OR CORNER POST TOP RAIZ. BRACE RAIL-` TRUSS ROD TWISTED BARBED SELVAGE NOTES HOOK CLAMPS (4) PLACES EVENLY SPACED SEE DETAIL. BELL) 3/4" DIA. SMOG BARS EQUALLY SPACED (4" O.C. MAX.) LOWER STEEL BAND 3/4" x 4" WIDE FORMED TO FIT IN GROOVE OF C.B. RISER PROVIDE MAIN'l ACCESS BY WELDING (4) CROSS BARS .10 (4) VERTICAL BARS AS GE UPPER ENDS W /FLAN GES /BOLTS LOCKING MECHANISM (W/PADLOCK) END. LCCA TE LADDER STEPS ELOW. _)°(TYP.) .E NOTE 1 SMOOTH VERTICAL BARS �--W- C.B. RISEN HOOK CLAMP ANCHORED TO C.B. RISER DETAIL HOOK CLAMP N . F. S. THICK x 4" WIDE IG SMOOTH BARS }MELDED UPPER & LOWER BANDS BARS EVENLY SPACED E NOTE 1) R STEEL BAND x 4" WIDE 'GENCY OVERFLOW W.S. 4.67.22 -- EL= 467.'16 STD. GALV. STEM'S IOTES: DIMENSIONS ARE FOR INSTALLATION ON 54" JIA. C.B. FOR DIFFERENT DIA. C.B.'S, ADJUST DIMENSIONS TO MAINTAIN 45' ANGLE ON "VERTICAL" BARS AND 7" O.C. MAX. SPACING 01 BARS AROUND LOWER STEEL BAND. 2. METAL PARTS: CORROSION RESISTANT, STEEL PARTS GALVANIZED. PL�IN SCALE:: 1 2' -BRACE POSTS LINE TWISTED & UARBED SELVAGE BRACE POS POST PULL. P0`3 xx �SLE:EVE � BRACE RAIL & TOP RAIL T TO ,�AII_ �;�fr5t�c^c CHAIN LINK S"fFtE TCEiEE� BAR 5' FABRIC fJ POST GATE ti \\ T BOTTOM HINGE: (180- SWNG) 0 BRACE RAIL �_ f� xTENSION xx �SLE:EVE � BRACE RAIL & TOP RAIL T TO ,�AII_ �;�fr5t�c^c CHAIN LINK S"fFtE TCEiEE� BAR 5' FABRIC fJ POST GATE POST \\ BOTTOM HINGE: (180- SWNG) BRACE RAIL �_ xTENSION WIF2E- - TIS U Sis i��c D /ti ALL /i/\//%\Y//\'///\i`,//\\�q/y�,:!%/\Y//\\///`'�"�"�: ROUND f//.V///1-`///-'��.?/��?%/•::/fle /,'/�;,✓//`mss/,l`*�• ROLL .'� 1. ALL CONCRETE POST BASES SHALL BE CLASS :3000, 10" MINIMUM DIAMETER. 2. ALL POSTS SI°1ALL BE SPACED AT 10' MAXIMUM INTERVALS UNLESS OTHERWISE DIRECTED BY THE ENGINEER. :3• TOP OR BOTTOM TENSION WIRES SHALL BE PLACED WITHIN THE LIMITS OF THE FIRST F=ULL FABRIC WEAVE. 4. DETAILS ARE ILLUSTRATIVE AND SMALL NOT LIMIT HARDWARE DESIGN OR POST SELECTION FOR ANY PARTICULAR FENCE TYPE. 5. THE CHAINLIiNK FENCE SI-IALL HAVE BLACK OR BROWN BONDED VINYL COATING. ALL POST, CROSS BARS, AND GATES SHALE. BE PAINTED OR COATED THE SAME COLOR AS THE FENCE. FABRIC BAND 12 ROUND SECTION CONCRETE CLASS C CIIJAIN LINK FENI-y .Lp GATE MEMBER SECTION A- A N.T.S. OVERf'L()N' MA NFI�J%f,' w/ C"ONE GRAIL' DEBRIS BARRIER TYPE II -48"0 END, GATE OR CORNER POST BRACE RAIL TENSION 'MRE DINE: TWISTED & BARGED SELVAGEBRACE POST POST FULL P05 -r TENSION WIRE � CHAIN LINK`. z FABRIC ?1' X; BRACE RAIL � � STRETCHER BAR X •/// �(xTM � r CHAIN LINK FENCE TY'K'E 3 3 1/2 f� - -- - 1 1 /4„ I� FABRIC LOOPS RAILENCE LINE 11:7,FABRIC LOOPS '-TYPE I 3ru LINE POST END, CORNER & BRACE' PULL POST NOTES - 1. MINIMUM POST LENGTH: ROLL FORMED SECTIONS TYPES 1 & 3 8'-8" CONCRETE CLASS C BRACE RAIL & TOP RAIL �;�fr5t�c^c LINE & CHAIN LIN€t ST ETCHER .% WOTRUSS `ZdcFABRIC EAR <i< RODS � PULL POST GATE POST \\ BOTTOM HINGE: (180- SWNG) 12 ROUND SECTION CONCRETE CLASS C CIIJAIN LINK FENI-y .Lp GATE MEMBER SECTION A- A N.T.S. OVERf'L()N' MA NFI�J%f,' w/ C"ONE GRAIL' DEBRIS BARRIER TYPE II -48"0 END, GATE OR CORNER POST BRACE RAIL TENSION 'MRE DINE: TWISTED & BARGED SELVAGEBRACE POST POST FULL P05 -r TENSION WIRE � CHAIN LINK`. z FABRIC ?1' X; BRACE RAIL � � STRETCHER BAR X •/// �(xTM � r CHAIN LINK FENCE TY'K'E 3 3 1/2 f� - -- - 1 1 /4„ I� FABRIC LOOPS RAILENCE LINE 11:7,FABRIC LOOPS '-TYPE I 3ru LINE POST END, CORNER & BRACE' PULL POST NOTES - 1. MINIMUM POST LENGTH: ROLL FORMED SECTIONS TYPES 1 & 3 8'-8" CONCRETE CLASS C rid -or r - E N.T.S. KING C."OUN`1'Y D.D.E.S. 1 Review Engineer Completion Date o kv_ w _V S rTror E ginee Completion Date JN .SANDERS, P.E. Apprc�VCll Date DEVELOPMENT ENGINEER Comments: DESCRIPTION DREAMCRAFT 21EAST Iri1EEKc R, KENT, WA 98032 PHONE No. (253) 859-9697 .3/4' A'PROVE0 BRACE RAIL & TOP RAIL LINE & BRACE POST END, CORNER. PULL POST GATE POST TYPE _ __ �_ ALL ROUND H -COLUMN ROLL FORMED ROUND H -COLUMN ROLL FORMED ROUND ROLL FORMED ROUND POSTS I.D. Weight Weight Weight _ I.D. Weight � Weight Weight I.D. Weight Weight I.D. Weight Pipe (Inches) _ _ Per Foot (Pounds) Size (Inches) Per Foot (Pounds) Size (Inches) Per Fant (Pounds) Pipe (Inches) Per Foot (Pounds) Size (Inches) Per Foot (Pounds) Size (Inches) Per Foot (Pounds) ) Pipe Per Foot (Inches) (Pounds) Size (Inches) Per Foot (Pounds) Pipe (Inches) Per Foot (Pal.rnds) Length 1 1 )4"2.27 1�4' x 1* 1.35 1 x 1% 1.35 2 3.65 2 /4 4.0 1%, 1,� 2.34- 2 5.79 3)� x 3)� 5.14 3 9.1 3 1 2.27 1 x 1 1.35 1 1 . x 1� ��- 1.35 '1 / 2.72 7 1 , 2.72 1 i x 1� 1. 35 2 3.65 31 x 3.� 5.14 3)2/ 9-_1 8'_8" rid -or r - E N.T.S. KING C."OUN`1'Y D.D.E.S. 1 Review Engineer Completion Date o kv_ w _V S rTror E ginee Completion Date JN .SANDERS, P.E. Apprc�VCll Date DEVELOPMENT ENGINEER Comments: DESCRIPTION DREAMCRAFT 21EAST Iri1EEKc R, KENT, WA 98032 PHONE No. (253) 859-9697 .3/4' A'PROVE0 .�. �;�;:sayw.vx wras,.«..�::w1�"���- .,. �.. .....:;..�..,....�•..c.xs.`uF ."�.�," ��'-ssa::xxs.:.:�,.":s3.ux� SANITARY SEWER.,,EASEMENT PER RECORDING NO/ 6:3013040140 f" f SILT"' FENCE (SEE DET,4IIL SIFT, CLEARING/.LIMIT (T �)- ' 18" MAPLE MAPLEw�a M ' EX. GR VEL DRIVE Y- EX. CULVERT 12" CObiC IE=470.11 i it ►� 9 ( I EX, SSM H RIM=472.32 s IE(N&S)8 _461.31 \\ WEB M }� , INK FENCE 4 CHAIN L 01 [-A k S ALE � � SEE DTL a SIFT, . EXIST. DITCH TO BE RELOCATED EX. CULVERT u Pj 129 H CONC 1 TO BE REMOVED EX GRAY _ D I I VEWAl . \ ;�,I , EX. CULVERT '12 CON C -- (SEE DTL. SNT. ) .P"" r� - � 20" FIR ;,� �� ` -� - f ,,\I '� D ° WATER AINT EX. CULERT MARK 46.75` / Wei TO BE R EDS / / " MAPLE i / REMOVE OW fit •' �� 9''4'lPr�i as , ` ' ' -� - PATIO I111I TYp c' SCUTACK 12 16 aNau8.APPLE jA lO HT.)MnPL SEE DTL. ar q!1 „ 5' SHEEP WIRE F 4 EX 1 STI N( m-, -" SINGLE � r`;;� � `� � �� �� � �- � ' � � � � } � � � : 3 HI I i a � � ► � �LF � LSI" E OQ� ROCKERY I AX. TO E I EI�i� VED%� y1fY1 - (SEE DTL� SHTa )0 UP 'REMOr Ey. FELEo 1 ' // i {fit••` +• 1211, � !J F' S.� i �•�,� f 4 f 4 j II :, 40 0 EX. SAN. SWR. MANHOLE EX. FIRE HYDRANT �N ED EX. WATER METER WM Z� EX. WATER VALVE YIEX. UP UTILITY POLE [� EX. MAILBOX - -- ®--T - EX. CHAINLINK FENCE ---m x EX. WIRE FENCE EX. CONIFEROUS TREE— TO REMAIN EX. DECIDUOUS TREE TO REMAIN � EX. CONIFEROUS TREE._ REMOVE EX. DECIDUOUS TREE REMOVE WIDE F EICE I I i L I \ � Y 4' WIRD FFJNC I»lJ i �i 4I.. WlF E\FEN,CE -", 6" BIRCH f. ,,_/,•; '" I X613 113th AMIE S I ' I— — .� — — VE I� I OW MANHOLE /f f i� �'� RENTON, WA 98055 t t' ,� (SEE DTL, S"ll 20" FIR T FIR , ,�,;0 I rte. '4 4" 16 ,- ' ^-1.�� - �- `� TO D (� MAPLE R-_�-_� ;;.;f ;, EX. VF RT \�� AWCi�TBACK TYP "12 FIR - E �:'s-- -- — _� �* C I\dC GAS �. ROCKERIES --�"— 14�" HEIv4LOCt6 �� �', �` . 66 06 � PAINTS � � �.I- � �(SEE DTi�o SHE ) �' % -'�✓r -7 14 SP U EMARK 1 LF '2�9- .GPF,._ �UF�.EI'�P. 15. i2' LOPE 17.20% I 12' 14 MAPLE '`•., ,a _--_tea , �. _ --�- - �a _ 9 �. EL DRI �> TIS U I N , � _�;,,n F CON \ . __-- ,.rq _• _. �� ACTIVITY IGN t ,., ) . ISIS , _ E ILo SKIT 6 y"., FH �` (SEE ) CEI No. 1- ~sL , Q m s 1 • ` INTERCEPTOR 20" 24" SH TEMP / LVEF2T �`E EETv . 16" COTTONWOOD / r 4r'_ ��m. �� a '-, IT I to E K DAMS MAPLE-"- �� __ 1 " INSTAL TENIP. 1 ' _y}3 2" M>�RLE `'''-�.---r--_- �-- -'a e� �, fE.6a i j INLET ITETN \t • EE mL1 � 11 COTTONWOOD TONWODD ��P 1 7 0 . E REMOVED TO jp{j C JI r1 f. 1 [,,7 r 1 X00 �, ,� � Co�r���U���1� I LF � J,C ISE � ®�� � No. 10 A 1 _ • v ° f X. 1(SEE' f ,•1 1 ABANDONED CULVERT IIT I, -- fJ� /(,7j/�9,, ;° r X4- 1 s+++ ••• . , . � —PLUG ]E �q�q•� ppp WATERTIGHT p���q¢ �9� J1r INSTALL TEMP. 'yq]1`_ •`-� 12" & i 6" Pa • 1 •O % i �d.J{ .tl ;�j.."w1P :.•! % Or_' I` / -� "1' � �5. � � •. `' ' a�' ' ! `W./ 9e/ � � ��i Uc� � `arT �T 1 � I , ER :�, :5 ! ,_, y / rL I� (/^'��. ;r { ; .✓.�-�. - ; - i I CONCRETE.. � INLET PROTECTION TAIL . o Ta �� - a �,.( 1./r ±-- , �' SEL DE ll _ i 1~ �up�hT'� ' T�I� Y RR TI WALL�,�\ ; - - ! X. CULVERT �r—�� t ` TE IS E w - ° ° _ \ ____— rw j� r' �~� �'" `7 1 -""_\� �-^' �'�, � CONTACT E N � � �� � � ' I •-r.'"`•s.._ l r7's ((i.l (° l `i ! ! t r _ CONFLICT) �r .E9& �, EX. S M UP -- - �:--- _, _ __ ~ , , ® ' " - EX. CIJLVER I RIM= -4-65.53 - ` _ _ _ _ - _ - _ IE N&S =456.'1 w En int r Cc�Mpile icon Date I-4_wt_~._ _ - ®®-�� ��cc. _ �_ _ �_�_ �__ _., — a _�_ _ ___ ____ _ _� _- ��. _�_ _ `�._____ _ _ l 12 CONC f ) Revi g Y 3 HIGH ROC E-RY M -A- air, ` �/�" �'�`r ``•'� \� °•� ��, /.moi � r`,f/ -- � .�.�,�� IE�--�I E r7 I j f' T 9 ° P O E DEMO _.,. {�,�E ATL. SHT. ) - � � � --- LEA IN LIMITS (TYP.) ° TEP CONST. NTANOE RELOCATE— I FENCE ry S nior E i I' ��- 4if1RE � i S � Completion Date I EX. PAVED DRIVEWAY (SIDE .TAI a I�ITr UTILITY POLE } j 9 8' CHAINLINK FENCE-,,,,, J ' i�d � � � Ij i EX, F'A\/ED 1DR1 J� MES SDERSH P. E. Ap r val Date ` l OPMENT ENGINEER r Al. 4 RoSjo '1 .. 1 N T ON CONTROL NOTES 'I. APPROVAL OF THIS EROSION AND SEDIMENTATION CONTROL (ESC) PLAIN L.)OES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE F)ESIGN (E.G., SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS, c-FIANiNELS, RETENTION FACILITIES, UTILITIES, ETC.). 1. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS IHE RESPONSIBILITY OF THE APPLICANT/ESC SUPERVISOR UNTIL ALL CONSTRUCTION IS APPROVED. :;. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL DE CLEARLY 'FLAGGED BY A CONTINUOUS LENGTH OF SURVEY TAPE (OR FENCING, IF REQUIRED) PRIOR TO CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS Sl -TALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. 4, THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS 'I'D ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS MINIMIZED. 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 AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G., ADDI'T'IONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.). G. THE ESC FACILITIES SHALL BE INSPECTED DAILY BY THE APPLICANT/ESC SUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY REVIEWS OF THE ESC FACILITIES DURING THE WET SEASON (OCT. 1 TO APRIL 30) AND OF MONTHLY REVIEWS DURING- THE DRY SEASON (MAY 1 TO SEPT. 30). 7. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO 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, 1-'LASTIC COVERING, ETC.). 8. ANY AREA NEEDING FSC MEASURES NOT REQUIRING IMMEDIATE ATTENTION SHALL BE ADDRESSED WITHIN FIFTEEN (15) DAYS. 9. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN FORTY-EIGHT (48) HOURS FOLLOWING A STORM EVENT. 10� AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE GLEANING OPERATION SHALL NOT FLUSH SEDIMENT --LADEN WATER INTO THE DOWNSTREAM SYSTEM. 11. STABILIZED CONSTRUCTIION ENTRANCES AND ROADS SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE DEPT CLEAN FOR THE DURATION OF THE PROJECT, 12, ANY PERMANENT FLOW CONTROL FACILITY USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM, THE TEMPORARY FACILITY MUST BE GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OFTHE PERMANENT FACILITY. 13. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED AT A MINIMUM THICKNESS OF 2 TO 3 INCHES. 14. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL DISTURBED AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE DDES INSPECTOR. THE DDES INSPECTOR CAN REQUIRE SEEDING OF ADDITIONAL AREAS IN ORDER TO PROTECT SURFACE WATERS, ADJACENT PROPERTIES, OR DRAINAGE FAILITIES_ 1. SCHEDULE A PRE -CONSTRUCTION CONFERENCE WITH DDES SITE INSPECTOR BY CALLING (206) 206--6642. 2. INSTALL SILT FENCE AND CONSTRUCTION ENTRANCE. 3. FLAG CLEARING LIMITS AND FENCE AROUND ALL TREES TO BE SAVED. 4. CONSTRUCT DOWNSTREAM DRAINAGE SYSTEM WITHIN 113TH AVE. SE. 5. CONSTRUCT TEMPORARY SEDIMENT POND. 6. CLEAR AND GRADE SITE WITHIN CLEARING LIMITS. INSTALL ROCKERIES PER PLAN AND DETAIL 7. INSTALL INTERCEPTOR DITCHES. S. STABILIZE ALL AREAS OUTSIDE OF R/W. 9. INSTALL. UTILITIES AND CONVEYANCE FACILITIES. PROVIDE CD PROTECTION. 10. FINISH GRADE, PAVE ROADS AND INSTALL SIDEWALK AND CONSTRUCT THE REQUIRED 5' GRAVEL WALKWAY ALONG 113th AVE. S.E. 1.1. STABILIZE ALL DISTURBED AREAS. 12. FLUSH STORM DRAINAGE PIPES. 13. CONVERT TEMPORARY SEDIMENT POND TO PERMANENT DETEiNTION POND/WETPOND PER DETAILS ON SHEET 7. INSTALL LINER AS SPECIFIED. 14. INSTALL LANDSCAPING. 1.5. UPON FINAL SITE STABILIZATION, CLEAN SITE AND REMOVE REMAINING EROSION AND SEDIMENTATION CONTROL MEASURES UPON SITE STABILIZATION. 213x2"xJ6" STAKES STAKED & ENTRENCHED STRAW BALE BINDING WIRE OR TWINE COMPACTED SOIL TO PREVENT PIPING (ANCHOR TOE) SEDIMENT LADEN RUNSF FILTER ED RUNOFF CROSS-SECTION ON OF r t_INw1a - F 111 N.T.S. JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR r-rs. .., ,. . P A IT Yr /'A A '"'1'T A - 1 I- . 1 r -',r TP1 RTL Cl TCS° POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED NOTE: FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOUR WHENEVER POSSIBLE 2"x2" BY 14 Go. MIRE C- EQUIVALENT, IF STANDAF STRENGTH FABRIC USED FILTER MINIMUM 4"x4" TRENCH'S / BACKFILL TRENCH WITH NATIVE SOIL OR 3/4"-1.5" WASHED GRAVEL 2"x4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT MAINTENANCE STANDAFMS 1. ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY. 2. IF CONCENTRATED FLOWS ARE EVIDENT UPHILL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT i -RAP OR POND. 4 3. IT IS IMPORTANT TO (.HECK THE UPHILL SIDE OF THE FENCE FOR SIGNS OF THE FENCE CLOGGING AND ACTING AS A DARRIER TO FLOW AND THEN CAUSING CHANNELIZATION OF FLOWS PARALLEL. TO THE FENCE. IF THIS OCCURS, REPLACE THE FENCE AND/OR REMOVE THE TRAPPED SEDIMENT. 4. SEDIMENT MUST BE R17 -MOVED WHEN THE SEDIMENT IS 6" HIGH. 5. IF THE FILTER FABRIC HAS DETERIORATED DUE TO ULTRAVIOLET BREAKDOWN, IT SHALL BE REPLACED. SILT FENCE with LINEA,l? 7'RF.NCli PUBLIC RIGHT -OF --WAY N OTE: AS PER DING COUNTY ROAD STANDARDS, DRIVEWAYS SHALL BE PAVED TO TIME EDGE OF R.O.W. PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY. IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD. TABILIZED CONSTRUCTION ENTRANCE N.T.S. RISER PIPE (PRINCIPAL SPILLWAY) OPEN AT TOP WITH TRASH RACK POLYTHYLENE CAP PERFORATED POLYETHYLENE DRAINAGE TUBING, DIAMETER MIN. EL. X66.50 2" LARGER THAN �-,�- DEWATERING ORIFICE. TUBING SHALL COMPLY WITH ASTM F667 AND AASHTO M294- EL.= 294- EL.= 464.00 - EL.= 463.00 WIRE -BACKED SILT FENCE. STAKED HAYBALES WRAPPED WITH FILTER FABRIC, OR EQUIVALENT DIVIDER WATERTIGHT COUPLING 6LF e 12" CMP @ o.00% TO CONTROL STRUCTURE 12"0 CMP RISER 0 TOP EL.= 465.00 MIN. N.T.S. 0.25' MIN. WALE DITCH SLOPE 12" MIN1NIMUM EXIST. - 57, 150' 5 --• 10% P Vivi' T. > - 10% 50' EXIST. GEOTEXTILE =' GROUND o- 0 -- 100''" < -_-_-. O :D Z < uj 0 v) c� zza NV EXIST. GROUND Q0 oO ) o ����/ p ® 0 a O _j � �-,, O Oi�O OOC OOCOOoO00GDO ODO 0 CJ ODD OOt 00 is 0 0 O0 O O©O� O O(YO& Ly Lr ] Dqq �0i 1� 1/ C ®� 0 o rY �_ / D o�' Q� / 4" TO 6" O r . U. 111 f QUARRY SPALLS OCA C)c �a Y . 11, 00 o O O® Og00 0 OOQ O 00 CO OUO D ®1,4j Obi O CSO 000®�J O JJ Ao 00. ®O�0 0 O 0 00 \i����'�������/�����'�\���'i�����������i\���/i\moi ®O q q qq ®0() 0 00Oo Jw�0o0�70 0i N OTE: AS PER DING COUNTY ROAD STANDARDS, DRIVEWAYS SHALL BE PAVED TO TIME EDGE OF R.O.W. PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY. IT IS RECOMMENDED THAT THE ENTRANCE BE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD. TABILIZED CONSTRUCTION ENTRANCE N.T.S. RISER PIPE (PRINCIPAL SPILLWAY) OPEN AT TOP WITH TRASH RACK POLYTHYLENE CAP PERFORATED POLYETHYLENE DRAINAGE TUBING, DIAMETER MIN. EL. X66.50 2" LARGER THAN �-,�- DEWATERING ORIFICE. TUBING SHALL COMPLY WITH ASTM F667 AND AASHTO M294- EL.= 294- EL.= 464.00 - EL.= 463.00 WIRE -BACKED SILT FENCE. STAKED HAYBALES WRAPPED WITH FILTER FABRIC, OR EQUIVALENT DIVIDER WATERTIGHT COUPLING 6LF e 12" CMP @ o.00% TO CONTROL STRUCTURE 12"0 CMP RISER 0 TOP EL.= 465.00 MIN. N.T.S. 0.25' MIN. WALE DITCH SLOPE CHECK DAM SPACING 0 - 57, 150' 5 --• 10% 100' > - 10% 50' INTERCEPTOR DITCH X SECTION ROCK CHECK DAM (FRONT VIEW) �a MIN. FLOC SUMPSHIND®.0 EC D ROCK CHECK AM _ 4✓w SHALL BE INSPECTED DAILY & 1 r I f= CLEANED WHEN COLLECTED DEBRIS 0.5a _ V EXCEEDS 1/2 OF ITS DEPTH KEY ROCK 5' INTO SWALE 0.25' MIN. NOTE: ROCK SHALL BE 4" MINUS QUARRY ROCK ROCK CHECK IMAM X -SECTION (SIDE VIEW) TYPICAL INTERCEPTuE 19UTCH w/ROCK CHECK DAM N.T.S. Comments: STANDARD STRENGTH FILTER FABRIC CRATE z vZlIZZ /J �v CATCH BASIN a �4A A A f� \ NOTE: ONLY TO BE USED WHERE PONDING OF WATER ABOVE THE CATCH BASIN WILL NOT CAUSE TRAFFIC PROBLEMS AND INHERE OVERFLOW WILL NOT RESULT IN EROSION 01= SLOPES. MAINTENANCE STANDARDS: 1. ANY ACCUMULATED SEDIMENT ON OR AROUND THE FILTER FABRIC PROTECTION SHALL BE REMOVED IMMEDIATELY. SEDIMENT SHALL. NOT BE REMOVED WITH WATER, AND ALL SEDIMENT MUST BE DISPOSED OF AS FILL ON ---SITE OR HAULED OFFSITE. 9. REGUI...AR MAINTENANCE IS CRITICAL. UNLIKE MANN FORMS OF PROTECTION THAT FAIL GRADUALLY, CATCH BASIN PROTECTION WILL FAIL SUDDENLY AND COMPLETELY IF NOT MAINTAINED PROPERLY. FILTER FABRIC �f . N.T.S. 1, I'r1Bx1mivall 1-I pight Ir Shoulder min, t Standauds Rocicery for k t loicated in + i. hail be herp For cut area t0cz musL -For, Mat bacVdope, suifaC e should I_ lrnoervjo�is and zi� drain F-�raiiiing b a��dif ;rrja;c. `,r, r;ri j; t.l:r;. 8" wide layer OF 2" 1" quarry �palls -�� !1 EN 4 - - stable! cut face in DaNe material i,seer : k -8) I' (or less' djarneLer washed gravet; min. ov cover ow ­,v pipe; win, 121" gravel 'under pine. (PIPE AND GRAVEL NOT REQUIRED FOR ROCKERIES LESS THAN 4' HIGH) _1. l_ackerir2s over 0 llyn 1�heia�ht r usl-_- i meet requiI e � e t 3 .ii Y raw � l db3tli df I ��v Us'ubify not cwaite, th,can 6' hicl l on a ioll or p, opera/ kne wiLhin S' JeAbi: rck- General NotesS. Rock hall e sound and have a r`ninil-num cir)4siiy Q NQ pounds per cubic 'Fuad, J . Rockeries 4' and over 1:-1 h6ght, require a building The long dir-nenSicn o all Lacks sr all be piacerl perpen icula r 1.o the wall, Each rock should b .c= i on tw c 2. For i OCkedes b0iveen 4' and 6' h gh, the installer or rocks ir, the. tier below, contractor shall provieQ o IQ Cr to the buiUnq � 1 � _ ins ---c- or prior Lo firital ins e��lfir ert,` i Improved 4Ajal Ing SUrfe eS above an � a 3 t- I� P�� � i c ���I�� ���t< 'I:�1Crockeriesover � ��� ��I1T �O Ilb��rad al,d drainage hcive been prepare -d inC�U� in graii conforming to UPY'l- � ae o�elc� d by a locordanlce with the �kandards, �. ic�Cl;��":_�� �' �I�IC� Ov`�� Iii i`I�II`I� rpt{I.�ii�.' �>��irl�i�rlilg 8. Rockerles aro e5osion-contral structuresr surb'� 0 5p��.iD� 1T��}:���tW�,� �i.,�, U3c .�7a1.21 lr�`�d'r1lg 'aIIs, Na�:iVl'-? �'�1c3ei`i�Il rT��"St b�? st;`�bl�? a:`i!'.' �U��a Js.�fOrl �r +�4�leli��h at � rr�ii�ir�-l�Ia� shall �ryr��� r, inspection �re�w'��rt�in� in �'1.1a � a�P�, o -sis �f and drainacIo. and finislieci roc.,ery., 9. Any deviaticiro in dost:gn or Placerr;ent Of ad.--ace_,i be SL.bc-nic--ed `lvilLh (he- seal of o ci', #I t:ngineer Tc. -ug venkly licensed ire �fhe St-al,,e d .a lr -r v v 1-.% P ().1r-rT0. % %t7 -f r'i 0 6irli k%'A , A P v SANITARY SEWER EASEMENT PE RECORDING No. 8303040740 7 4,335 SQ. FT. \1 EX. CULVERT TT A" 012��I!�A,CT r� 1%t�� 1 2" CON C IE=468.53 PI�GRESS, EGRESS & "' UTILITY INGRESS, WGRESS, &_ UTILITY \ 2,242 SQ. FT. \ EXIST. DITCH 2,1� SQ. FT. j� `'0'n \ 1 lll` �I �- 36 FI %rte— y�`�--�_�_ ._—�—� .. __....� ^ ` _\ ® 1 j ' ' • .. - . —.. �. '__._. y.. , . 30 r f iLIZ° i I 3,92.1 SCJ. FT. 4,300 SQ. FT. 3,695 SCS. FT...... ............. ' A� wM .. . �� ...... ............ _. �' IP. - �\ _ . 3,784 �'�. F� . .... ........... IP ........... �.... LI I MAY BE RELOCATED —� ......... MAT BE 3,658 SQ. FT. ...:.;. ...... . ...... .. : _ , :' ��: ��JITI�III�I LOT TO :..... RE1 OCATED '...............r�............ ACCOMODATE HOUSE WITHIN LOT T® � :... �`:'........................ �' I / 1 i ..\............�. ... I . \. ACCO®DATEAC HOUSE PLAN ,750 SQ. FT. � � - � � - - I :::: P o PAGE" �s '� o OPEN S �. II c .... I.'..... R E G R EA O _� I LL -- -- __ 1 -' WOOD BENCH I \_ 3,900 SQ. FT. .. .. . . . ... .. . . ' s �r �' C i F b ! `Y `lt-� ~' 1Y `L �' . . . ' . c{ 9 ...... ...to 1 r P P 3,784 SQ. :.....;.....•.:P�........ �� � � � � � �' • . ��.. - . — _ 2.'....... .i 6' WOOD BENCH ' ....... � a \.. I �UcaTO�i I �� �..... -..� ..... '. ..'..q'100DPLI�F ..... I STEEL. I v f� , 110 I P ._............ PLAY I RUM D Al:.� RAIL ' FENCE. I � � I �1 .ti. �� � :...'. ............ ............ . . STI�F�JJCTURE 6,7( S FT. l t` / ...CON.CR TE ... i r 1 11 P \ -- ! � ...... I P . . . . . . . . . . - ` �I Q _--� 1 4,049 SQ. FT. �,� �, , S A It lu 4,096 S0. Ff. 474 G . . . . . . . :r: . .X�... \ .� -. .... . ... . ... . ...........:....... .•.• .SAE; E1(• '20 " x ' :; v i �s. \ I.......1....... 43 a �° : �— . ' . . . . . . . . - .... .I . . . . . . . . �%.: .. .... .... ...... ... SIGNO CT.... D T�oSE .. fl o7th............... I �nr I I Ire -- _--___—--- ..... \, EX. SSM H 3 t 0 --\P -- -- - .�... . � RIM -468.53 -- =f, A9— _ _ \ _ _ _ N i IE 456.71 WOOD WOOD SPLIT RAIL FENCE��.u�--�_ __ . -- �� ----:- IE=4��,�.16 #� TO ABUTT ADJOININGCEDAR EX. PAVED DRIVEWAY ALONG PROPERTY LIFE I.I FENCE fj f ��aIE�J DRl �AY � ESP , 1 � KIN -.COUN d Y D.D. .e.a a J_ Re iew ,}ngineer Completion Date enior E igineer Completion Date JAMES H. SANDERS, P.E DEVELOPMENT ENGINEER Comments: Approval Date e r.. , L o, SANITARY SEWER EASEMENT PE RECORDING No. 8303040740 7 4,335 SQ. FT. \1 EX. CULVERT TT A" 012��I!�A,CT r� 1%t�� 1 2" CON C IE=468.53 PI�GRESS, EGRESS & "' UTILITY INGRESS, WGRESS, &_ UTILITY \ 2,242 SQ. FT. \ EXIST. DITCH 2,1� SQ. FT. j� `'0'n \ 1 lll` �I �- 36 FI %rte— y�`�--�_�_ ._—�—� .. __....� ^ ` _\ ® 1 j ' ' • .. - . —.. �. '__._. y.. , . 30 r f iLIZ° i I 3,92.1 SCJ. FT. 4,300 SQ. FT. 3,695 SCS. FT...... ............. ' A� wM .. . �� ...... ............ _. �' IP. - �\ _ . 3,784 �'�. F� . .... ........... IP ........... �.... LI I MAY BE RELOCATED —� ......... MAT BE 3,658 SQ. FT. ...:.;. ...... . ...... .. : _ , :' ��: ��JITI�III�I LOT TO :..... RE1 OCATED '...............r�............ ACCOMODATE HOUSE WITHIN LOT T® � :... �`:'........................ �' I / 1 i ..\............�. ... I . \. ACCO®DATEAC HOUSE PLAN ,750 SQ. FT. � � - � � - - I :::: P o PAGE" �s '� o OPEN S �. II c .... I.'..... R E G R EA O _� I LL -- -- __ 1 -' WOOD BENCH I \_ 3,900 SQ. FT. .. .. . . . ... .. . . ' s �r �' C i F b ! `Y `lt-� ~' 1Y `L �' . . . ' . c{ 9 ...... ...to 1 r P P 3,784 SQ. :.....;.....•.:P�........ �� � � � � � �' • . ��.. - . — _ 2.'....... .i 6' WOOD BENCH ' ....... � a \.. I �UcaTO�i I �� �..... -..� ..... '. ..'..q'100DPLI�F ..... I STEEL. I v f� , 110 I P ._............ PLAY I RUM D Al:.� RAIL ' FENCE. I � � I �1 .ti. �� � :...'. ............ ............ . . STI�F�JJCTURE 6,7( S FT. l t` / ...CON.CR TE ... i r 1 11 P \ -- ! � ...... I P . . . . . . . . . . - ` �I Q _--� 1 4,049 SQ. FT. �,� �, , S A It lu 4,096 S0. Ff. 474 G . . . . . . . :r: . .X�... \ .� -. .... . ... . ... . ...........:....... .•.• .SAE; E1(• '20 " x ' :; v i �s. \ I.......1....... 43 a �° : �— . ' . . . . . . . . - .... .I . . . . . . . . �%.: .. .... .... ...... ... SIGNO CT.... D T�oSE .. fl o7th............... I �nr I I Ire -- _--___—--- ..... \, EX. SSM H 3 t 0 --\P -- -- - .�... . � RIM -468.53 -- =f, A9— _ _ \ _ _ _ N i IE 456.71 WOOD WOOD SPLIT RAIL FENCE��.u�--�_ __ . -- �� ----:- IE=4��,�.16 #� TO ABUTT ADJOININGCEDAR EX. PAVED DRIVEWAY ALONG PROPERTY LIFE I.I FENCE fj f ��aIE�J DRl �AY � ESP , 1 � KIN -.COUN d Y D.D. .e.a a J_ Re iew ,}ngineer Completion Date enior E igineer Completion Date JAMES H. SANDERS, P.E DEVELOPMENT ENGINEER Comments: Approval Date GRAPHIC SCALE 20 0 '10 20 ( IN FEET ) 1 inch = 20 ft. 2H KING �� LAND APPROVED R� i u M=w fi.t tn f7n I N C-R C30 U NT cn RP.0 ATION1.__AN ARO'_ 1:/AR0JL''C75/,9_32Cj5 Ii'/t KbVS e r.. , L GRAPHIC SCALE 20 0 '10 20 ( IN FEET ) 1 inch = 20 ft. 2H KING �� LAND APPROVED R� i u M=w fi.t tn f7n I N C-R C30 U NT cn RP.0 ATION1.__AN ARO'_ 1:/AR0JL''C75/,9_32Cj5 Ii'/t KbVS SPREAD —2'X23 STW-S DRIVE (MIN -_Y iRNILY INTO SUBGRME PRIOR � TO DA ilyUNG STAKE ABOlir- FIRST BRMIGHE s OR AS NECX13 MY FOR W`IRM !XPPORT 2 SMAND IWS-FID 12 GUAGE GAL, WRE ENGAM IN 2- DIA. RUBBER HOSE PLAfff SO T"AT TOFF Of RGOT OALt_ IS 1' ABOVE FINISHED GRADE K'Eu IILIZrR PLACE PRIOR TO LIAR€C MUL01 APPUGAMN. BARIC MULCH -- 2" LAYER A11dER TO 'I'I?EE TRUNK. FORM SAUCER WITH 3" CONTINUOUS RIM CUT AND REMOVE ALL WRAPPING— BURLAP FIiWM TOP HALE OF mAIJ_ �VA'IEf2 & TAMP POCKEM TO itEMQVE AIR ,�: PtwOlydlJ PLA�iTIi f a,1I;(. z:: /�jlf..�j%/ _ " �AMPM TOPSOIL jO�IR1FY TO 4" DEPTH fill Jj II� IIS 111 I11- 2 X BALL DIA. DECIDUOUS TRE INSTALLATION DETAIL Ywt. _ � ��.�raeaanrmxes��aa�r;_<um�erssuai:�ae�s�w NO '",CALE DIA. BLACK REINFORCED RLIViDER 105E. PLACE AROUigU A MAJOR 1EUNK, COVE LATERAL BRANCH. �EET PLANT SO THAT PREVIOUS GROWNG VES. MATCHES NEW )'INIS�l GRADE. _FR7ILIZER --- PLACE PRIOR TO BARK ,AULGH APPLJCATION. SARK MULCH -- 3" LAYER IATHER TO TREE TRUNK. FAMISH GRADE. 'EEL. BURLAP BACK FROM TOP IAL F OF ROOT" BAL.. AFTER 'LANCING TRR'E. ROJOVE ` BERGLASS OR TREATED WRQ COMPLETELY. IACKFILL SOIL (THOROUGHLY ItIATER JA' C KEIL.L SOIL AFAR PLAfITiNG). IOMPACTED BACKFILL SOIL LARGE SI—IRUB INSTALLATION DETAIL. NO SCALE u SWY1BOL BOTANICAL NAME COMMON NAME SIZE & DESCRIPTION DECIDUOUS TREES TILIA CORDATA 'CREENSPIRE' LITTLE --LEAF LINDEN 2" CAL., FULL, MATCHED, STREET TREE QUALITY. ORNAMENTAL FLOWERING TREE CORNUS KOUSA CHINENSIS PRUNUS YEDOENSIS 'AKEBONO DECIDUOUS ACCENT TREES a AGER C'IRCINATUM EVERGREEN FOUNDATION TREE TSUGA MERTENSIANA 1/20 DIA. IJLACX RUDDER I -05Z LOCATE HALFWAY UP TIS 12 GA. GIJYI?40 YdRES 2 STRhAD TWIST FMTIIJZER — PLACE PR[CIR TO BARK MULCH APPLICATION, ZBARK MULCH FORM SAUGR WITH 3� Md`flNUOUS RIM PLMT SO THAT TOP a- ROOT BALL IS 'I" ABOVE MNISflED GRADE CUT AND REMOVE A!,I.. MAPPING AND 13URLAP FR0*4 TOP HALr OF ®ALL. wATrR & TAF p 1'Ovus 'rO REMOVE AIR SEE SPECIFIED PLANTING MIX. 3" T'AAIPEO TOPSOIL SCAZ"dlf='Y To e l)I nri CHINESE KOUSA DOGWOOD AKEBONO FLOWERING CHERRY 2" CAL,, B&B, FULL, '14' HT. MIN. 2" CAL., FULL, MATCHED HT. MIN. VINE MAPLE 5-6' HT., MULTISTEM, B&B 3" CAL., 3 BRANCH t 1" EACH MOUNTAIN HEMLOCK 6' — 8' MIN. HT., FULL B&B 3" CAL, PSEUDOTSUGA MENZIESII DOUGLAS FIR 6' 8' MIN. HT., FULL B&D, NOT SHEARED ; n CAL. TwIUJA PLICATA WESTERN RED CEDAR 6' — 8' MIN, HTS, FULL B&B -- 3" CAL. r uv i -t- 12- EVERGREEN THEE INSTALLATION DETAIL NO SCALA 2,1 Max ExIsLlnC Gm de Msr➢ ---GA -AKES (3L/.TR ) ACE. EVENLY PLANTING LEGEND SYMBOL BOTANICAL I`IAME COMMON NAME SIZE & DESCRIPTION SHRUBS Hie MIN. -- � _ OI I��L CTEU �- - ` - - --- --- COTONEASTER -PAfIE�_._ 4 ... ._. �ALo CONTa1T., FUL L- -- _--- --,& — OSMAR A BURKWOOD11 SAME_. 3 GAL. COLT., FULL, RED FESCUE w COLONIAL BENTGRASS a -ml I Ga— AGROSTIS TENUIS N!, qL PRUNUS PRU US LUSITANI , _ .. _ PORTUGAL LAUREL 3. GAL.. CO ­24" HT, QAkAE7 G-10 � --RHODODENDRON 'UNIQUE' SAFE 3 GAS... CONT. 2124" HTe � \ABUNUM DAADII ...__. 5,�®ME OA��., OONTe, rUL�. -__ ��— LIEU RUN1 'GNU � ., ..,. -__--_--=:� ��A _ T 3 GAL._ CONT. ... -- .._.. _..-..—......-.___..__........ 21-24" rte. _._._ SIT. _- 2" BARK HULGH I~ oRm SAUCER WMi Y CONJINUOUS RIFT CUT AND REMOVE A.I.Q. WRAPPING MID BURDT FROM TOP HAV OF BAS... WATER TAMP POCKETS TO REMOVE Alla SEE SPECIFIED PLANTING MIX. 3" TAMPED TOPSOIL SCARIFY `1°0 4" DERDI ROOT BALL + 12' Sl--IRUB INSTALLATION DETAIL NO SCALE KING COUNTY D.D.E.S. t � Review Eng in e - Completion Date enior E d gineer Completion Date JAMES H. SANDERS, P. E. Approval Date DEVELOPMENT ENGINEER Comments: ........ Y_ ..R, _0___0 _ �__.__.. 0 _ oc �y G . leo- -- (X) Equidistant PLANTING PATTERN Distance (X) as specified in the plant table PLANTING INSTALLATION DETAIL_ NO SCALE SYMBOL BOTANICAL NAME COMMON NAME SIZE & DESCRIPTION ------- LOW __-LOW SHRUB MASSING /GROUNDCOVER ERICA ARtl �� 9 HEATHER Ivd. R �!tOT 2—Q'9 Ooe 'SPRINGWOOD WHITE' TRI. SPACING FRAGARIA CHILONSIS WILD STRAWBERRY 4" POTS 24" O,C. TRI. SPACING LAWN HYDROSEED 2 " MULCH AREA SHREDDED WOOD MULCH NOTE: ALL SHRUB & GROUNDCOVER AREAS ARE TO RECEIVE 2" MEDIUM SHREDDED WOOD MULCH BETWEEN PLANTINGS. w 0 � FESTUCA ARUNDINACEA VAR. wJ DWARF PERENNIAL RYE `i/ (BARCLAY) LOLIUM PERRENE VAR. FESTUCA RUBRA 25 RED FESCUE w COLONIAL BENTGRASS 5 AGROSTIS TENUIS N!, qL LOW—GROWING GRASS MIX SEED: SEE MIX SEED AT 205 to 3 LBS / 1,000 SF LISTED BELOW CELLULOSE MULCH AT 40 LB / 12000 SF APPLY AFTER LOW—GROW CRASS SEED MIX (NON—IRRIGATED) SEED MIX % OF MIX WEIGHT DWARF TALL FESCUE 0 (SEVERAL VARIETYS) FESTUCA ARUNDINACEA VAR. DWARF PERENNIAL RYE 30 (BARCLAY) LOLIUM PERRENE VAR. FESTUCA RUBRA 25 RED FESCUE COLONIAL BENTGRASS 5 AGROSTIS TENUIS PURITY % GERMINATION 98 90 98 90 98 90 98 90 ADDITIONAL NOTES: 1. PLAY STRUCTURE & FLAY SURFACE MATERIAL TO BE BUILT/PROVIDED AND INSTALLED BY: THE PLAYGROUND STORE MAPLE VALLEY, WA 93038 PH� (425) 432--6000 PLAY STRUCTURE #1122, SEE ATTACHED SHEET FOR ADDITIONALS INFORMATION, a DALEY ORO—POBLEE, INC. 726 AUBURN `NAY NORTH AUBURN, WASHINGTON 98022 PHONE: (253)333----2200 FAX: (253)333---2206 1325 <<a E� EXPIRES JAN. 9, 2_006 F STAMP NOT VALID UNLESS SIGNED & DATED 1r-icorporcted ENGINEERING] SURVEYING LAND PLANNING KING COUNTY LANDSCAPE PLAN APPROVED DATE KING COUNTY , RECREATION P U\N APPROVED LISDATE PROJFcr PLANTIN G PLAN, LEGEND AND DETALS Dl;�,l " BY MIK/ASIS SCALE AS NOTED APPROVED MLD - DATE JULY 5, LOO f,PPROVED OPAWIAX 03285—LPL2 SHEET' _ '"' fogy r./Pr�o��crs/o�?�s nacxrvs 1-41 00, C-3*4 SANITARY SEWER EASEMENT PE' RECORDING No. 8303040740 7 4,335 SQ. FT. IRRIGATION DESIGN IS DiAGRAMATIC. ALL IRRIGATION EQUIPTMENT IS TO BE LOCATED WITHN THE PROPERTY LINES OF TRACT AC9% 9 3)784 SQ. FT. I" Irrigation Water Meter to be installed by Soon Creek Sewer & Wdl-er District° O water rneter to me Iocated in planting bed outsicle o -f -fence. z 16" FIR 4)096 SQ. FT. AMC 1 U VLVVA EX. CULVERT 12 C 0 N C -l"ORAC"""I D 1E-46&53 tJ4�RAC"O� INGRESS, EGRESS, & UTIL-ITY INGRESS, EGRESS & UTILITY 2,19 5 SQ. FT . 2)242 SQ. FT, EXIST. DITCH --- �I d \ S 880 02'23" E 3 3 4, 82 36" F1 30 4, 26:x--:00 2921 SQ. FT. ...... ...... 4,300 S Q. FT. . ....... i f 3,595 SQ. FT. 4- 89-29 ................ j . . . . . . . . . . . . . ......... ............. .. . . 0a ......... WM ............. ... . .............. ....... ... ...... 00 .......... 77-77�� ............ ......................... ­ ........ ............... ...... ..... ....... ........ .......... ............................... .............. ........... . . . . . . . . + ....... ....... ......... ....... D ...... . . . . . . . . . . -, . . . . . . . . . . . . ...... 3,658 SQ, Fl. '2' .... . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 �Fw ........... . ........... . 44111glik , i!m_ . . . - ... T� —1 .................... c__--,�AWCLJT BACK (TYP.) H H 1A ........ . C R EATI 0 N ... ........ to be installed by Soon .'.] 000-- M, I ......... R'L' . . . . . . . . . . . . . .... ..... 3,r 9 0 0 S Q. FT. -2 water meter to me located in Creek Sewer & Water D's'r'ct. iL . eek ...... planting bed outside of fence. ...... 3 IT ................... ®r _14W ...... '�Q ............. .. C**) ........ ...... ........ . ......... 4- A 2 .......... . ..... ... 4� 3.1 ............ CUSTOM S, TEEL ...... . ..... .......... .................. . ........... ........ .. ......... T R M D C I L ...... PLAY T" E Al �,l FA ............ STRUC Irriqat'on Control�er to be 4 6,7-) SC. FT. ............................ irl8tolle�d on to o 4x4 pressure ....... ....... .......... ....... ..... ...... .......... -treated- wood post by 0ect­ -t -to, -be, ...... ...... o. foa.,. .0 n ........ igation co ........... C...-tr 1. 1 1.... ­._ 4�049 SCS. FT. ........ ......... rion or ird ntr actor, a IISx4 pre ssure Loco-te controller post in .. ........ ...... .. ................ ......... ........ I p -os t- � -by el ect . ........ .......... ............... * ...... plantling bed inside, fence . .. .......... J ...... [7 _7 4. ria n, or, iragn. tion, con tra ctor. ...........Irk to controUr manufacturers .... .. ...... near rr gaflon vaives. R efe r e r p. co .................... ............. ............. ....... ecs.for add`L'onal ........ SP I I 2 near, ir va ves. ....ire- er ............ ''I .. ......... 20" &J .........I ......... VrA I requirements. -o i, 'n aftci cturers- 4 ...... .......... ....... .. .... ............. ................ 4)ecs.for ac difloh-4 .............. ......... .............. -qui rem, ............ re nt q6 ...... . . .......... 4' ............. . . . . . . . . . . . . . . . . . . . .... . . . . . . . ............... -------- . ......... ....... ..................... ........... ...... ......... ......... .............. ..... ........ ....... aP .. ...................... � . . . . .­--r�.­__ ---: . .................. ....... ---------------------- . .......... ............ .................... .............. C), ......... ...... T ........... ....... ............. , �A .... ....... 9-0 "ON'TEN-C"E" .............. ............ __0 ...... ..................... .......... ....... ....... .. .... .... ................ LL1, .................. TL ................ ........ ........ 67th CT.�.­­ ....... -16 ....... ......... 77 ........... ............... .......... .......... ................... .............. ....... ...... ..... ...................... .... .......... .......... ........ . ... ............. ......... .................. ....... ............. ?UP ............................ ..... ....... ...... ................ ... ..... .... ............ ........ ........... ...... ...... ................... ....... ....... ................ ............ ............... ............ EX TFiAC I C 9 SSMH .... ...... E_x. C i R I M = 4 6 8.5 3 12 " C NC () 8 iE=4 16 45 5. 7 I E (1\1 ck S 1 IDD I' I I EX. PAVED DRIVEWAY KING COUNTY D.D.E.S, Review Engineer Senior Engineer JAMES Id. SANDERS, P.E. DEVELOPMENT ENGINEER Comments: Completion Date Completion Date Approval Date EXpAVED 30 24 1- 00 30* �V-1Amw.___,- LjL AU PVC IRRIGATION MAIN GALV. PIPE VALVE ROUND -- - DRAIN VALVE, VALVE BOX /'O GALV- PIPE POINT OF YVi7T TO SCALE DOA VALVE BOX -S,_ -REMOTE CONTROL VALVE SPRINKLER HEAD RAINBIRD QUICK COUPLER MASTER CONTROL_ VALVE \\--- FEBCO DOUBLE CHECK VALVE PRESSURE REDUCING VALVE (ONLY IF PRESSURE IS ABOVE 100 PSI) WILKENS YS 100 STI=:AINER -! 1/2" - MUELLER SMUT OFF VALVE IRRIGATION WATER DETER CONNECTION SCHEMATIC rI�11r`I1 nrl nnr- Nin1 N/C- OJIV n1 dVP it 1ynl@ Mi IAIh JAI kJ- CIU 0 STRAINER �W REDUCTION VALVE PIPE TRIPLE SWING JOINT MANUAL DRAIN VAL..VE. NOTE: AFTER TESTING G ? APPROVAL AL OF DOUBLE CHECK VALVE REMOVE PLUG TEST COCKS FINISH GRADE i PROTECTIVE PI PF SLEEVE PVC; STREET ELL ..(��. 0 0 Q a b q LOCKING VALVE CAP KEY HEAD 1I -"- GALV. PIKE, 18" MIN. OFFSET FRONT PVC LINE MANUAL DRAIN VALVE 3'' GALV. PIPS., THREADED CTIE END DRAIN ROCK SUMP INSTALLATION OF MANUAL. DRAIN NOT TO Scnt.E 30 --INCH LINEAR LENGTH OF WIRE, COILED WATER PROOF CONNECTION (-1 0E= 2) ID TAG VALVE BOX WITH COVER: 12 -INCH SIZE FINISH GRADE/TOP OF MULCH R0\ROTE CONTROL VALVE: RAIN BIRD PE B PVC SCH 80 NIPPLE (CLOSE) PVC SCH 40 ELL PVC SCH 80 NIPPLE. (I-EjNGTH AS REQUIRED) BRICK (1 OF 4) SCH 80 NIPPLE= (2 -INCH LENGTH, HIDDEN) AND SCH 40 ELL PVC MAINLINE. PIPE PVC; SCH 40 TEE OR E=LL PVC SCH 40 MALE ADAPTER PVC: LATERAL PIPE 3.0 -INCH MINIMUM DEPTH O 3/4 --INCH WASHED GRAVEL RD/10-1-E (_;GNTROL VALVE NOT TO `.'{.'FlLE ISH GRADE/TOP OF MULCH P -UP SPRAY SPRINKLER: 1IN BIRD '1804 --PCS /PLASTIC MPR NOZZLE ?--INCH MALE NPT x .4.00 INC1-I \RB ELBOW: RAIN BIRD )DEL SBE -050 ING PIPE, 12 -INCH LENGTH: \IN BIRD MODEL SP -100 SCH 40 TEE. OR ELL ?---INCH MALE NPT x .4-90 INCH ARB ELBOW- RAIN BIRD )DEL SBE_ 050 LATERAL PIPE 4" POP-UP SPRAY SPRINKLER NOT TO SCALE T MATERIAL 1 GRADE/TOP OF MULCH -UP SPRAY SPRINKLER: I BIRD 1806 ---PCS LASTIC MPR NOZZLE INCH MALE NPT x .,490 INCH 3 ELBOW: RAIN BIRD EL SBE -050 PIPE, 12 --INCH LENGTH: BIRD MODEL SP -100 SCH '[0 -rE:E 0R ELL INCH MALE NPT x .490 INCH 3 ELBOW: RAIN BIRD EL SBE -050 b LATERAL PIPE 12 POP --(JP SPRAY SPRINKLER NOT TO SCALE KING, COUNTY , .E.S. Review Engineer Senior Engineer JAMES H. SANDERS, P.E. DEVELOPMENT ENGINEER Comments: RRIGATION LEGEND l� ambird Plastic 4" Pop-up 1 Series tndrSpray Hod I806 -MIT- F F-circle1.44 GPM 806-mP -81==1 l -circle 32 GPM �z 1806 -MPR -8T T -circle .48 GPM v, 1806 -VAN -80 0-clircle .66 GPM 5 PSI Rainbird P Iaste(s 4'9 Pop --up - _ 1800 Strip Series S rip Spray Heads 18 04-Ml�R-15SST 4 f x 2 1.11 GPM 1 804 -MPR-- S E T 4' x 14" .56 GPM 25 PSI Rainbird Plastic " Pop-up 00 Series Standard �� _.. Spray -Heads _ ad _ s 1806 -MPR -15F F -circle 3.30 GPM 1 06-I FS-15TO TO -circle 2.48 GPM y1806-1 -15TT TT -circle 2.21 GPI 1806 -MPR -15H H -circle 1.65 GPM MPR -15T T -circle 1.10 1806 -VAN -150 Q- circ; .83 GPM 5 PSI Rainbird elastic " Pop-up 1800 Series �- Standard Spra Heads 1806---MPRu`1 OF F -circle 1.44 GPM El 1 6 -MPR . 1 01=1 H -circle .72 GPI 1806 -MPR- 10 1 T-oircl .48 GOPM M 1806--VAN-10Q 0 -circle 046 GPM 5 PSI F aIn ird Rainbird Plastic 4" Pop-up 1800 'Series 18900 Series tandord Spray Heads 4--.- HYDROZO l 1804-MPR-1 F F-eirc1e 3.30 GPM 1806 -MFR -811 1804 -MPR -1 5TO TQ- cirele 2.48 GPNI 1806 -MPR -8-r 1804. -MPR -1 5 T T i TT -circle 2U21 GPM M I 1806 -VAN -80 804- IPR-15H=1 H - circle 1.65 GPM Ift 1804 -MPR -1 5T T -- circle 1010 GPM 1804 -VAN -150 0 -circle .8 3 GPM PSI l� ambird Plastic 4" Pop-up 1 Series tndrSpray Hod I806 -MIT- F F-circle1.44 GPM 806-mP -81==1 l -circle 32 GPM �z 1806 -MPR -8T T -circle .48 GPM v, 1806 -VAN -80 0-clircle .66 GPM 5 PSI Rainbird P Iaste(s 4'9 Pop --up - _ 1800 Strip Series S rip Spray Heads 18 04-Ml�R-15SST 4 f x 2 1.11 GPM 1 804 -MPR-- S E T 4' x 14" .56 GPM 25 PSI Rainbird Plastic " Pop-up 00 Series Standard �� _.. Spray -Heads _ ad _ s 1806 -MPR -15F F -circle 3.30 GPM 1 06-I FS-15TO TO -circle 2.48 GPM y1806-1 -15TT TT -circle 2.21 GPI 1806 -MPR -15H H -circle 1.65 GPM MPR -15T T -circle 1.10 1806 -VAN -150 Q- circ; .83 GPM 5 PSI Rainbird elastic " Pop-up 1800 Series �- Standard Spra Heads 1806---MPRu`1 OF F -circle 1.44 GPM El 1 6 -MPR . 1 01=1 H -circle .72 GPI 1806 -MPR- 10 1 T-oircl .48 GOPM M 1806--VAN-10Q 0 -circle 046 GPM 5 PSI F aIn ird Plastic 6" IStandard Rainbird 1800 'Series elastic " Pop -Lip HYDROZO l 1 ` 'ice 6 - M P R - 1 5 S -r 1800 Series 1806 -MFR -811 Standard Spray Heads 1806 -MPR -8-r >! -drole 804 -MPR --1 OF 1806 -VAN -80 F-dr-clon 1.44 GPM GPM = 5 PSI 1804 -MPR -1 OH H -circle .72 GPM 1804 -MPR -10T T-c1rdeu 48 GPM °1804 -VAN- I OQ ..-circle ,46 GPM 25 PSI l� ambird Plastic 4" Pop-up 1 Series tndrSpray Hod I806 -MIT- F F-circle1.44 GPM 806-mP -81==1 l -circle 32 GPM �z 1806 -MPR -8T T -circle .48 GPM v, 1806 -VAN -80 0-clircle .66 GPM 5 PSI Rainbird P Iaste(s 4'9 Pop --up - _ 1800 Strip Series S rip Spray Heads 18 04-Ml�R-15SST 4 f x 2 1.11 GPM 1 804 -MPR-- S E T 4' x 14" .56 GPM 25 PSI Rainbird Plastic " Pop-up 00 Series Standard �� _.. Spray -Heads _ ad _ s 1806 -MPR -15F F -circle 3.30 GPM 1 06-I FS-15TO TO -circle 2.48 GPM y1806-1 -15TT TT -circle 2.21 GPI 1806 -MPR -15H H -circle 1.65 GPM MPR -15T T -circle 1.10 1806 -VAN -150 Q- circ; .83 GPM 5 PSI Rainbird elastic " Pop-up 1800 Series �- Standard Spra Heads 1806---MPRu`1 OF F -circle 1.44 GPM El 1 6 -MPR . 1 01=1 H -circle .72 GPI 1806 -MPR- 10 1 T-oircl .48 GOPM M 1806--VAN-10Q 0 -circle 046 GPM 5 PSI F aIn ird Plastic 6" IStandard Po -up 1800 'Series 1800 Strip Series _ Spray He d HYDROZO l 1 ` 'ice 6 - M P R - 1 5 S -r ---- 28' 89 @0861 GPM - 1806 -MFR -811 H -circle .72 GPM 1806 -MPR -8-r >! -drole o PM 1806 -VAN -80 Q c'rcl , .66 GPM GPM = 5 PSI Lown Area Rainbird Plastic " Pop-up 31800 Bubbler Sero Stream BLibbler Nozzle 1805 - PR- F -D F -circle 1.50 GNI 15L4APR-51=1­H-circle 100 GKA `I 805-M PR -5Q- _Circle o5 Cpm 1805- 1P -5 TH- GTS -circle .5 GPM Rainbird Plastic " Pop-up Shrubs, North/East 1800 Strip Series _ trip Spray Meads_ --y._.._.� - HYDROZO l 1 ` 'ice 6 - M P R - 1 5 S -r ---- 28' 89 @0861 GPM - Shrubs, South/West 1806-MPR-1EST 4' x 14' o56 G P N1 17 806 -MPR -1 7SST 99 x 18' 1.60 GPM Area 25 25 PSI Rainbird Plastic " Pop-up 31800 Bubbler Sero Stream BLibbler Nozzle 1805 - PR- F -D F -circle 1.50 GNI 15L4APR-51=1­H-circle 100 GKA `I 805-M PR -5Q- _Circle o5 Cpm 1805- 1P -5 TH- GTS -circle .5 GPM Completion Date Completion Date Approval Date SIZE PIPE AS FOLLOWS: Shrubs, North/East 0 - Exposure HYDROZO l 3/4 Shrubs, South/West Exposure I 17 - 24 h ni , Buffer Area 25 - 32 GPM = 1 1 /2" Lown Area Completion Date Completion Date Approval Date SIZE PIPE AS FOLLOWS: X140GA1 NO. DESG l TION Rainbird 150 PFO Automatic control valve 24 vas 100 PEB Typ-1cal 1 1/2 or I inch. TYPIC.-A.L.-VALVE CALL -OUT _ H---1 HYDROZ NE TYPE _T11 VALVE `SALVE S1ZE 12.25 RC&IB rd 1- Sri-. (4 STA.) I -ESP- (4 ST&) Automatic controller `117 vac., 4 statlons, Pedestal Mount Ra'n Sensor. (2 TOTAL) in locations shown on plan. �-_ -- --- - _ POINT OF CONNECTION (2) (1) 5/8" 5Y MDL. triter Meters & Double Check Valves, to be installed (1)S12Y' I �d l by oos r�>�k g Seer c Water � District. Rainbird Quick ooupi r /4 33DNP Install per deta110 One required rJP,r- DOInt of connection. Hammond 1 1/2 Bah volve 11 Solder 2 niece Brass Standard Port ---1" PVC SchadUle 40 preSSLire 1i ire I lr '/ 15" cover min, _ QVC cImss 200 lateral flee, 3/4J9 s'Ize, / 1219 cover min. it 11 . 1mg, sleeving, PVC SchU 40 twice dlo. of insert pipe, run I12" into bed, stoke & fla o i ADDITIONAL I TH IS NOT SHOWN ON PLAN aInbird� Clulck coupler 3/4" 33 Install peer detail, Orae r sired P ion. Pressure--- -¢ red��oing valve `1---�� / - �� � inch. install a pstream of dou )I . ohe(�k valve If required. W 'K6 n �_-3 Galvanized strainer 1 1/2 inch, YS -100 inst 91 ger detail. 0 - 8 G P M 3/4 6 Pm I 17 - 24 G'PM = 1 1 /4" 25 - 32 GPM = 1 1 /2" X140GA1 NO. DESG l TION Rainbird 150 PFO Automatic control valve 24 vas 100 PEB Typ-1cal 1 1/2 or I inch. TYPIC.-A.L.-VALVE CALL -OUT _ H---1 HYDROZ NE TYPE _T11 VALVE `SALVE S1ZE 12.25 RC&IB rd 1- Sri-. (4 STA.) I -ESP- (4 ST&) Automatic controller `117 vac., 4 statlons, Pedestal Mount Ra'n Sensor. (2 TOTAL) in locations shown on plan. �-_ -- --- - _ POINT OF CONNECTION (2) (1) 5/8" 5Y MDL. triter Meters & Double Check Valves, to be installed (1)S12Y' I �d l by oos r�>�k g Seer c Water � District. Rainbird Quick ooupi r /4 33DNP Install per deta110 One required rJP,r- DOInt of connection. Hammond 1 1/2 Bah volve 11 Solder 2 niece Brass Standard Port ---1" PVC SchadUle 40 preSSLire 1i ire I lr '/ 15" cover min, _ QVC cImss 200 lateral flee, 3/4J9 s'Ize, / 1219 cover min. it 11 . 1mg, sleeving, PVC SchU 40 twice dlo. of insert pipe, run I12" into bed, stoke & fla o i ADDITIONAL I TH IS NOT SHOWN ON PLAN aInbird� Clulck coupler 3/4" 33 Install peer detail, Orae r sired P ion. Pressure--- -¢ red��oing valve `1---�� / - �� � inch. install a pstream of dou )I . ohe(�k valve If required. W 'K6 n �_-3 Galvanized strainer 1 1/2 inch, YS -100 inst 91 ger detail. __[O' u ll6r Maris 11 rIsral Shut off valve 1 1 /2 inch, instaill per detallo NOTE VERIFYMINIMUM 60 GPM M A T 75 PSI AT POINT OF CONNECTION. NOTIFY CIVIL ENGINEER OF ANY DISCREPANCIES PRIOR TO COMMENCEMENT OF WORK. NOTES - 1. Lo t all valves, re l3ur� reducers, heeds and other equipmerit withim property lines and shruib beds. Verify property line �'th owner. 20 Ire atoll cill heads flesh with finish grade and 2 inches cickfrom all curbs and walks as indicated on irn .tion schedule. 3- Sleeve all pipes shown crossing roadways, driveways, ernergency access drives and sad wdes- with class 200 P � Bury 18" and project 15" into planting beds. Sleeve twice, the diameter of insert pipe. o install all valves and point of connect on gra shrub beds. o f rr ga t m con t°r l l rs to be mounted, on 4)(4 pressure treated wood posts. Posts to be cemented Into the ground vv th a mimMUM 24" d p-th and width. beds. Sleeve 1wice twicethe cllameet r of insert pipe. !.•�ARDJ�C75/0.325 l VILlIINS IVIS t L 7.. a V e e 5 9 �..,,• r+.«a. '1.81 4 AV I/ 5, 7 8 4' SCS. FT. 4' WOOD RAIL ;750 SC). FT. 6' WOOD BENCH L7, K,, 11 � .E P T C fil L 1 I&Nt E Pa` Qj S1 1E[ E a� r1j 4^1j' T� dr '�.`� •' ¢ I �� sy.8 {,S �a -' }���*� ', vy,`' �`�'&'vk}��i xy� �•5' � �'� �S"''r`1 iy.. '; l�. ------------- i ra�:nicr. MARK '\ \)� �itry.�" ,,. �f+et� .�,iw.Y�' �$ � B, .�„ j ,p � ��i� �� $ � �' 4 �,.. � •'O'a • D \ # `rte '4$u -',C '�•T ' . a Rr R D a. ; • be ALa so cu au b ^ry, iay• •� ,,� ;,y s T 'y�' •1� •_� q]>a .'°. . • �e tib' •• . ti t•. q' o o _� 111 ,h} s pp 1"• i � ,�f a9 d • n` . '9:.[,� a9}.g ,Sa •'ti+•e '•a •,q r'' 4a ' ` '•A c�� "IV e4 ou 9 •°'°+.:� ¢ .$,i - d - br' pry' * . MARK 4"1 8002'16"E6 335,a9O�-�.-. �.::R,�,�:•a.�,��,_�.n... ,..„,,.�.:,�...=.:a.�,a.�.x EX. PAVED DRIVEWAY ,I I '-% n 4 WUUD SH"LIT R"'AlL 1 d TO` Ab"U''TT Aur""Ju""11"L I � EU'A.K' ENCOIE ALU"N"G '*Mwit�i G• LOCATION KING COUNTY D.Do.. Review Engineer Completion Date Senior Engineer _ Completion Date JAMES H. SANDERS, P.E. Approvol Date DEVELOPMENT ENGINEER Comments: ��x APPRO V 1 , r+ f.� IVIS t L 7.. a V e e 5 9 �..,,• r+.«a. '1.81 4 AV I/ 5, 7 8 4' SCS. FT. 4' WOOD RAIL ;750 SC). FT. 6' WOOD BENCH L7, K,, 11 � .E P T C fil L 1 I&Nt E Pa` Qj S1 1E[ E a� r1j 4^1j' T� dr '�.`� •' ¢ I �� sy.8 {,S �a -' }���*� ', vy,`' �`�'&'vk}��i xy� �•5' � �'� �S"''r`1 iy.. '; l�. ------------- i ra�:nicr. MARK '\ \)� �itry.�" ,,. �f+et� .�,iw.Y�' �$ � B, .�„ j ,p � ��i� �� $ � �' 4 �,.. � •'O'a • D \ # `rte '4$u -',C '�•T ' . a Rr R D a. ; • be ALa so cu au b ^ry, iay• •� ,,� ;,y s T 'y�' •1� •_� q]>a .'°. . • �e tib' •• . ti t•. q' o o _� 111 ,h} s pp 1"• i � ,�f a9 d • n` . '9:.[,� a9}.g ,Sa •'ti+•e '•a •,q r'' 4a ' ` '•A c�� "IV e4 ou 9 •°'°+.:� ¢ .$,i - d - br' pry' * . MARK 4"1 8002'16"E6 335,a9O�-�.-. �.::R,�,�:•a.�,��,_�.n... ,..„,,.�.:,�...=.:a.�,a.�.x EX. PAVED DRIVEWAY ,I I '-% n 4 WUUD SH"LIT R"'AlL 1 d TO` Ab"U''TT Aur""Ju""11"L I � EU'A.K' ENCOIE ALU"N"G '*Mwit�i G• LOCATION KING COUNTY D.Do.. Review Engineer Completion Date Senior Engineer _ Completion Date JAMES H. SANDERS, P.E. Approvol Date DEVELOPMENT ENGINEER Comments: ��x APPRO V