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Home My WebLink AboutLUA-08-140 1 of 2_Engineering Site® King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 May 3rd, 2005 Kurt Wilson SB! Development, LLC P.O.Box 73790 Puyallup, WA 98373 RE: Plat ofNichols Place, L03P0015 Review Activity: L04SR034 Dear Mr. Wilson: Dave Cayton, P.E. Core Design, Inc. 14711 NE 29th Pl.,#101 Bellevue, WA 98007 Our office has co·mpleted the third review of engineering plans for the Evendell project. The attached list provides a summary of design issuos which must be addressed in your next submittal. The review comments are based upon the design plans and technical information report received April 6th, 2005. Once the initial review comments have been addressed, please submit three sets of revised plans and technical reports. To assist in reviewing the revised plans, the design engineer should prepare a written response for each issue identified in the attached comments. If you would like to discuss the design requirements for the project, please contact me at 206-296- 7044. Sincerely, Wylie Wong Engineer II Enclosure NICHOLS PLACE, L04SR034, THIRD REVIEW COMMENTS · All page references are based on 1998 King County Surface Water Design Manual (KCSWDM), 1993 King County Road Standards (KCRS) and King County Codes (KCC). DRAWING COMMENTS: Sheet 4.31: 1. Control CB3 is 6 ft away from the spillway/access road. Please move CB3 to the edge of spillway/access road, or extend the spillway to CB3. See attached sketch. 2. For the access road to pond on SE 139th Street, provide two fixed and two removable bollards instead of three removable bollards. See attached sketch. Sheet 7.01: Please include approved Recreation plan on the plan set. Sheet 7.02: 1. Delete two street trees within 50 ft of SE 1391h street intersection. Sheet 7.03: 1. Update school walkway plan with the latest information and details as shown on the Evendell submittal dated April 29 1\ 2005 with the easement recorded number. 2. The walkway shall be behind the extruded curb on the frontage of Evendell, or move the extruded curb from the back of paved shoulder to the edge of travel way form Station 0+00 to Station 2+70 on 1601h Ave SE ofEvendell Sheet C3.0l. Call out the extruded cement concrete curb along walkway per KCRS Drawing No. 3- 002 on plan. 1 1J ~---= ~-x----. 1 / -:-4:JO -- / 448~ - <::, y446;~Jt~ ----1-------I /1 j I ~ (~ ---_:-442-tf'--.. -6f1!J.OM EL 4!.2.0 -·~ , --~ lt;j ~ --' ,., ' . --4 !NTAK£3A 4 : ~ -~ ~ ·,·-I "" ...... ; I -I ' -. \ APPROX. FLOW PATH I -7---j I ----------j---_;::::,- / / I / --···---·-----·····-·····-i 45 4 ------.__ i I I 1 ! / , 'fRACT "E" I / I I I \ \ ' if" , I DETElii/ON / RECREA T/ON '5:,'v 1 j' ],st-I I I ) I I / I / --I/L_448----,----,-t: -----450 I --/I 452--------~- 1 TRACT ''F" SEWER LIFT !,STAT/ON -----"' /ii ·,, // Uk{ STORAG(: I "'8 3 I V) REOIIIRED: 5#,419 CF / t.,j / '.,< PR0"1DED: 55,031 CF/ CONTROL STRUCTUf!E1 7 "r ( ,j r:f, 4 4 " :::-, 5-, ..... SEEOETAIL. TH/SS/1€£7: ,,.v.r · , ,0.0· '<!,)>'! . A "'"'-, I \// " Q[AO SmRAGE: / . :'f:i: ~}.r 1,/(CJ(olS p1,,ACE=-C 4:3 / / \.~10· 8 -· I' 1~j I i I ) r • IIH ~-,._,,.. Site Improvement Bond Quantity Worksheet -® King County Department of Development & Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TfY 206-296-7217 Project Name: Plat of Nichols Place Location: 13900 Block & 160th Avenue SE Clearing greater than or equal to 5,000 board feet of timber? yes If yes, Forest Practice Permit Number: (RCW 76.09) Page 1 of 9 X no For alternate formats, call 206-296-6600. Date: 23-Dec-04 Project No.: L03P0015 Activity No.: L04SR034 Note: All prices include labor, equipment, materials, overhead and profit. Prices are from RS Means data adjusted for the Seattle area or from local sources if not included in the RS Means database. ~ ~~rrr~ ~~7 :s;-/3/o~ 04037BQW .xis Check out the ODES Web site at www.metrokc.gov/ddes Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 12/28/2004 ~ , __ Site Improvement Bond Quantity Worksheet Backfill & compaction-embankment Check dams, 4" minus rock Crushed surfacing 1 1/4" minus Ditching Excavation-bulk Fence, silt Fence, Temporary (NGPE) Hydroseeding Jute Mesh Mulch, by hand, straw, 3" deep Mulch, by machine, straw, 2" deep Piping, temporary, CPP, 6" Piping, temporary, CPP, 8" Piping, temporary, CPP, 12" Plastic covering, 6mm thick, sandbagged Rip Rap, machine placed; slopes Rock Construction Entrance, 50'x15'x1' Rock Construction Entrance, 100'x15'x1' Sediment pond riser assemblv Sediment trap, 5' high benn Sed. trap, 5' high, riprapped spillway berm section Seeding, by hand Sodding, 1" deep, level ground Sodding, 1" deep, sloped ground ,TESC Supervisor Water truck, dust control WRfir~N-m-meMS~{§_ jfl g l Page 2 of 9 0403 7BQW .xis ESC-1 ESC-2 SWDM 5.4.6.3 ESC-3 WSDOT 9-03.9(3) ESC-4 ESC-5 ESC-6 SWDM 5.4.3.1 ESC-7 ESC-8 SWDM 5.4.2.4 ESC-9 SWDM 5.4.2.2 ESC-10 SWDM 5.4.2.1 ESC-11 SWDM 5.4.2.1 ESC-12 ESC-13 ESC-14 ESC-15 SWDM 5.4.2.3 ESC-16 WSOOT 9-13.1(2) ESC-17 SWDM 5.4.4.1 ESC-18 SWDM 5.4.4.1 ESC-19 SWDM 5.4.5.2 ESC-20 SWDM 5.4.5.1 ESC-21 SWDM 5.4.5.1 ESC-22 SWDM 5.4.2.4 ESC-23 SWDM 5.4.2.5 ESC-24 SWDM 5.4.2.5 ESC-25 ESC-26 SWDM 5.4.7 iilillll $ 5.62 CY $ 67.51 Each I 41 $ 85.45 CY $ 8.08 CY I 8ol $ 1.50 CY $ 1.38 LF 1 10801 $ 1.38 LF $ 0.59 SY $ 1.45 SY $ 2.01 SY $ 0.53 SY I 120001 $ 10.70 LF $ 16.10 LF $ 20.70 LF $ 2.30 SY .$ 39.08 CY I 101 $ 1,464.34 Each t -$ 2,928.68 Each 11 $ 1,949.38 Each I .11 $ 17.91 LF $ 68.54 LF $ 0.51 SY $ 6.03 SY $ 7.45 SY $ 74.75 HR 1 31 $ 97.75 HR 1 3 I n!iii!iifflii Each ESC SUBTOTAL: 30% CONTINGENCY & MOBILIZATION: ESCTOTAL: COLUMN: Check out the DDES Web site at www.metrokc.gov/ddes 11 270 11 646 11 1490 1 I 6360 11 391 11 29291 11 19491 1 $ 14,553.20 $ 4,365.96 $ 18,919.16 A Unit prices updated: 02/12/02 Version: 04/22/02 Report Date; 12/28/2004 - Backfill & Compaction-embankment Backfill & Compaction-trench Gl-2 Clear/Remove Brush, bv hand Gl-3 Clearing/Grubbing{Tree Removal Gl-4 Excavation -bulk Gl-5 Gl-6 GI -7 Gl-8 Fill & comaact -common barrow Gl-11 Fill & compact -aravel base Gl-1' Fill & comoact -screened toosoil Gl-13 Gabion, 12" deep, stone filled mesh GI -14 Gabion, 18" deep, stone filled mesh GI -15 Gabion, 36" deep, stone filled mesh GI -16 Grading, fine, bv hand GI -17 Grading, fine, with orader GI -18 Monuments, 3' long GI -19 Gl-20 round IGI-21 GI -22 GI-23 GI -24 GI -25 Gl-26 !Trail, 4" top course Gl-27 1Wall, retaining, concrete Gl-28 !Wall, rockery Gl-29 . Page 3 of9 ·KCC 27A authorizes only one bond reduction. 04037BQW .xis Site Improvement Bor.-Quantity Worksheet $ 8.53 CY $ 0.36 SY $ 8,876.16 Acre] J -----I 1 [_ --__ 8,876.161-· 31 $ 1.50 CY $ 4.06 CY 1 l l 2700J 10,962.00 $ 18.55 LF $ 13.44 LF $ 1,271.81 Each $ 12.12 LF $ 22.57 CY $ 25.48 CY $ 37.85 CY $ 54.31 SY $ 74.85 SY $ 132.48 SY $ 2.02 SY $ 0.95 SY $ 135.13 Each I 1 I 135.131 21 270.26 $ 2.88 Each $ 7.46 SY $ 788.26 Dav ·1 o.51 394.1310.51-394.131 0.51 $ 1,556.64 Acre $ 85.18 HR $ 7.59 SY $ 8.33 SY $ 8.19 SY $ 44.16 SF $ 9.49 SF -- SUBTOTAL 754.06 ~403.55 Check out the DDES Web site at www.metrokc.gov/ddes 26,628.48 394.13 ___ 49,783.61 Unit prices updated: 02/12/02 Version: 4122102 Report Date: 12/28/2004 .-.~ Site Improvement Bor>-Quantity Worksheet SY $ 1.38 SY $ 41.14 SY oe I RI -5 $ 30.03 LF Barricade, tvoe Ill ( Permanent } Rl-6 $ 45.05 LF Curb & Gutter, rolled RI -7 $ 13.27 LF I 1 I 11301 _ .1.4_.995.10 Curb & Gutter, vertical RI -8 $ 9.69 LF j 215J so83.35I Curb and Gutter, demolition and disoosa RI -9 $ 13.58 LF Curb, e~truded asphalt RI -10 $ 2.44 LF RI -11 $ 2.56 LF RI -12 $ 1.85 LF RI -13 $ 1.69 LF !sealant, asphalt RI -14 $ 0.99 LF Shoulder, AC, ( see AC road unit price) RI -15 $ -SY Shoulder, aravel, 4" thick RI -16 $ 7.53 SY Sidewalk, 4• thick RI -17 $. 30.52 SY Sidewalk, 4• thick, demolition and dispos RI -18 $ 27.73 SY Sidewalk, 5• thick RI -19 $ 34.94 SY I 1301 4,542.201 3501 1s229.oo Sidewalk, 5" thick, demolition and dispos Rl-20 $ 34.65 SY RI -21 $ 85.28 Each RI -22 $ 5.82 Each RI -23 $ 2.38 SF Rl-24 $ 0.25 LF Page 4 of9 SUBTOTAL 6,625.55 27,224.10 .. KCC 27A authorizes only one bond reduction. 04037BQW .xis Check out the DDES Web site at www.metrokc.qovlddes ,.. __ , Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 .- -:F.~eiili&1illl/iffl,I) For KCRS '93, (additional 2.5· base) add RS-1 AC Overlay, 1.5" AC RS-2 AC Overlav, 2" AC RS-3 AC Road, 2·. 4" rock, First 2500 SY RS-4 AC Road, 2", 4" rock, Qtv. over 2500SY RS-5 AC Road, 3", 4• rock, First 2500 SY RS-6 AC Road, 3", 4• rock, Qtv. over 2500 SY RS-7 AC Road, 5", First 2500 SY RS-8 AC Road, 5•, Qtv. Over 2500 SY RS-9 AC Road; 6", First 2500 SY RS-1• AC Road, 6", Qty. Over 2500 SY RS -1 Asphalt Treated Base, 4" thick RS· 1 Gravel Road, 4" rock, First 2500 SY RS -1 Gravel Road, 4" rock, Qty. over 2500 SY RS -1 PCC Road, 5", no base, over 2500 SY RS· 1 PCC Road, 6", no base, over 2500 SY RS-H Thickened Edge RS· 1, Page 5 of 9 *KCC 27A authorizes only one bond reduction. 0403780W .xis Site Improvement Bor. '-juantity Worksheet $ 3.6o I SYT · 300] --·-1,oso.ool 197_ol __ ~-1,092.ool 3901 $ 7.39 $ 8.75 SY $ 17.24 SY I I I 19701 _ _]3,962.801 3901 $ 13.36 SY $ 19.69 SY I 3001 §,907.00 $ 15.81 SY $ 14.57 SY $ 13.94 SY $ 16.76 SY $ 16.12 SY $ 9.21 SY $ 11.41 SY $ 7.53 SY $ 21.51 SY $ 21.87 SY $ 6.89 LF I r 1 T 1 2201 SUBTOTAL 6,987.00 ___ 4_1,054.80 Check out the DDES Web site at www.metrokc.gov/ddes 1,404.00 6,723.60 1,515.80 9,643.40 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 .~ llf>'R;iijN'KG~!!l!ll~d!~ Access Road, RID I D -1 Site Improvement Bor.'-Quantity Worksheet 16.74 I SY ~ffl---l!lill·--,111m1tr· tVl3fi#.a~.~s§Ym.eci%sume?@ratea,av.elie;•elpri~~@" 110 I 2,845.80 Bollards -fixed D-2 I $ 240.74 I Each 21 481.48 Bollards -removable D -3 I $ 452.34 I Each SI 2,261.70 " (CBs indude frame and lid) CB Type I -D-4 CB Type IL D-5 D -6 . for additional depth over 4' D-7 CB Type II, 54• diameter D-8 D-9 D -10 D -11 D -12 for additional de.e_th over 4' D -13 Through-curb Inlet Framework (Add) D -14 Cleanout!__P_vC, 4• D -15 Cleanout! PVf:! e· D -16 Cleanout, PVC, a· D -17 Culvert, PVC, 4" D -18 Culvert, PVC, 6" D -19 Culvert.!. PVC, 8" D -20 Culvert, PVC, 12" D-21 Culvert.!. CMP, a· D -22 Culvert,.C:MP, 12" D -23 Culvert, CMP, 15" D-24 Culver\ CMP, 1 a· D-25 Culvert, CMP, 24• D-26 Culvert, CMP, 30" D-27 Culvert, CMP, 36" D-28 Culvert, CMP, 48" D -29 Culvert, CMP, 60" D -30 Culvert, CMP, 72" D -31 Page 6 of 9 *KCC 27A authorizes only one bond reduction. 04037BQW .xis - $ 1,257.64 Each 1,257.641 4 5,030.56 $ 1,433.59 Each I $ 2,033.57 Each 4 8,134.28 $ 436.52 FT 20 8,730.40 $ 2,192.54 Each 1 2,192.54 $ 486.53 FT 3 1,459.59 $ 2,351.52 Each $ 536.54 FT $ 3,212.64 Each $ 692.21 FT $ 366.09 Each $ 130.55 Each $ 174.90 Each $ 224.19 Each $ 8.64 LF $ 12.60 LF $ 13.33 LF $ 21.77 LF $ 17.25 LF $ 26.45 LF $ 32.73 LF $ 37.74 LF $ 53.33 LF $ 71.45 LF $ 112.11 LF $ 140.83 LF $ 235.45 LF $ 302.58 LF SUBTOTAL 1,257.64 31,136.35 Check out the DOES Web site at www.metrokc.qovlddes 3 1 4 23 3,772.92 2,033.57 1,746.08 4,022.70 11,575.27 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 Culvert,'Concrete, 12· D -33 Culvert, Concrete, 15" D -34 Culvert, Concrete, 18" D • 35 Culvert, Concrete, 24" D -36 Culvert, Concrete, 30" D -37 Culvert,-Concrete, 36" D -38 Culvert, Concrete, 42" D -39 Culvert, Concrete, 48" D -40 Culvert, CPP, s· D -41 Culvert, CPP, 8" D -42 Culvert, CPP, 12" ' D -43 Culvert, CPP, 15" D -44 Culvert, CPP, 18" D -45 Culvert, CPP, 24" D -46 Culvert, CPP, 30" D -47 Culvert, CPP, 36" D -48 Ditching D -49 Flow Dispersal T ranch (1.436 base+) D -50 French Drain (3' depth) D -51 D -52 Infiltration pond testing D -53 Mid-tank Access Riser, 48" dia, 6' deep D -54 Pond Overflow Scillwav D -55 Restrictor/Oil Seoarator, 12" D -56 1Restrictor/Oil Separator, 15" D -57 D -58 Riprap, r laced D -59 Tank End Reducer (36" diameter) D -60 Trash Rack, 12" D -61 Trash Rack, 15" D -62 Trash Rack, 18" D -63 Trash Rack, 21" • D -64 Page 7 of 9 *KCC 27A authorizes only one bond reduction. 04037BQW .xis Site Improvement Bor.'-Quantity Worksheet $ 30.05 LF $ 37.34 LF $ 44.51 LF $ 61.07 LF $ 104.18 LF $ 137.63 LF $ 158.42 LF $ 175.94 LF $ 10.70 LF I r-----I I I 6751 $ 16.10 LF $ 20.70 LF r-121 248.41 ?sol 155251 1201 $ 23.00 LF $ 27.60 LF I I I sol 1656 $ 36.80 LF $ 48.30 LF $ 55.20 LF $ 8.08 CY $ 25.99 LF $ 22.60 LF $ 2.40 SY $ 74.75 HR $ 1.605.40 Each $ 14.01 SY I 1 l l l 2sl $ 1,045.19 Each I I I I I 1 I $ 1,095.56 Each $ 1,146.16 Each $ 39.08 CY l 71 273.5~ 41 156.32 $ 1,000.50 Each $ 211.97 Each I I I 1 I 211.97 $ 237.27 Each $ 268.89 Each $ 306.84 Each SUBTOTAL 521.96 17549.29 Check out the DDES Web site at www.metrokc.gov/ddes 7222.5 2484 350.25 1045.19 11101.94 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 .. ~ -. Site Improvement Bor ·--.Juantity Worksheet No. 2" AC, 2" top course rock & 4" borrow PL -1 $ 15.84 SY 2" AC, 1.5" too course & 2.5" base cou PL-2 $ 17.24 SY A" select borrow PL-3 $ 4.55 SY 1 S too course rock & 2.5" base course PL-4 $ 11.41 SY WRliliE~ll',l;iiTtEMSl (Such as detention/water School Walkwav Wl-1 Each - 15.260.ool Concrete Sidewalk Wl-2 $ 30.52 SY 140 4272.8 500 Gradina Wl-3 $ 5,000.00 LS 1 5,000.00 Concrete Stairs Wl-4 $ 5,000.00 LS Metal Handrail Wl-5 $ 50.00 FT Wl-6 Wl-7 Wl-8 Wl-9 WJ-10 SUBTOTAL 4,272.80 20,260.00 SUBTOTAL (SUM ALL PAGES): 20,419.01 163,628.09 30% CONTINGENCY & MOBILIZATION: 6,125.70 49,088.43 GRANDTOTAL: 26,544.71 212,716.52 COLUMN: B C Page 8 of 9 *KCC 27A authorizes only one bond reduction. 04037BQW.xls Check out the DDES Web site at www.metrokc.gov/ddes sol i1 601 _1,526.00 5.ooo.ool 3,ooo.ool 9,526.00 91,630.22 27,489.07 119,119.29 D E Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 -"'---~' Site Improvement Bond Quantity Worksheet Original bond computations prepared by: Name: Plat of Nichols Place Date: 1 O-Nov-04 PE Registration Number: 33713 Tel.#: 425-885-7877 Firm Name: Core Desi.11,n. Inc. Address: 14711 NE 29th Place, Suite #101 Project No: L03P0015 ROAD IMPROVEMENTS & DRAINAGE FACILITIES FINANCIAL GUARANTEE REQUIREMENTS Stabilization/Erosion Sediment Control (ESC) Existing Right-of-Way Improvements Future Public Road Improvements & Drainage Facilities Private Improvements Calculated Quantity Completed Total Right-of Way and/or Site Restoration Bond•/" (First $7,500 of bond' shall be cash.) Performance Bond• Amount (A+B+C+D) = TOTAL Reduced Performance Bond• Total••• Maintenance/Defect Bond* Total PERFORMANCE BONO· AMOUNT (A) $ 18,919.2 (B) $ 26,544.7 (C) $ 212,716.5 (D) $ 119,119.3 (A+B) $ 45,463.9 (T) $ 377,299.7 Minimum bond; amount 1s $1000. BOND· AMOUNT REQUIRED AT RECORDING OR TEMPORARY OCCUPANCY••• (E) $ TX 0.30 $ 113,189.9 OR (T-E) $ 377,299.7 Use larger of Tx3o% or (T-E} PUBLIC ROAD & DRAINAGE MAINTENANCE/DEFECT BOND· (B+C) X 0.25 = $ 59,815.3 NAME OF PERSON PREPARING BOND· REDUCTION: Date: * NOTE: The word "bond" as used in this document means any financial guarantee acceptable to King County. ** NOTE: KCC 27 A authorizes right of way and site restoration bonds to be combined when both are required. The restoration requirement shall include the total cost for all TESC as a minimum, not a maximum. In addition, corrective work, both on-and off-site needs to be included. Quantities shall refle'ct worse case scenarios not just minimum requirements. For example, if a salmonid stream may be damaged, some estimated costs for restoration needs to be reflected in this amount. The 30% contingency and mobilization costs are computed in this quantity. * ..... NOTE: Per KCC 27 A. total bond amounts remaining after reduction shall not be less than 30% of the original amount (T) or as revised by major design changes. SURETY BOND RIDER NOTE: If a bond rider is used, minimum additional performance bond shall be ! $ 331,835.8 !(C+D)-E REQUIRED BOND· AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY ODES Page 9 of9 04037BQW.xls Check out the DDES Web site at www.metrokc.gov/ddes Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/26/2004 - Site Improvement Bond Quantity Worksheet {® King County Department of Deve_lopm&nt & Envlronmental Services 900 Oakesdale Avenue Southwest Renton. Washington 98055-1219 206-296-6600 TIY 206-296-7217 Project Name: Plat of Nichols Place Location: 13900 Block & 16oth Avenue SE Clearing greater than or equal to 5,000 board feet of timber? yes If yes, Forest Practice Penmit Number: (RCW 76.09) Page 1 of 9 X no For alternate formats, call 206-296-6600. Date: 23-Dec-04 Project No.: L03P0015 Activity No.: L04SR034 Note: All prices include labor, equipment, materials, overhead and profit. Prices are from RS Means data adjusted for the Seattle area or from local sources if not included in the RS Means database. ~~~~· ~~7 s-/s/or 04037BQW .xis Check out the DOES Web site at www.metrokc.gov/ddes Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 12/28/2004 ~ '-·~~ Site Improvement Bond Quantity Worksheet Check dams, 4" minus rock Crushed surfacing 11/4" minus Ditching Excavation-bulk ,Fence, silt Fence.Temporary (NGPEl Hydroseeding Jute Mesh Mulch, by hand, straw, 3" deeo Mulch, by machine, straw, 2" deeo · Piping, temporarv, CPP. 6" Piping, temporarv, CPP, 8" Piping, temnorary, CPP, 12" Plastic covering, 6mm thick, sandbagged Rip Rao, machine placed; slooes Rock Construction Entrance, 50'x15'x1' Rock Construction Entrance, 100'x15'x1' Sediment pond riser assembly Sediment trap, 5' high berm Sed. trap, 5' high, riprapped spillway berm section Seeding, by hand Sodding, 1" deep, level around Sodding, 1" deep, sloped ground ITESC Supervisor !Water truck, dust control' ~-;Nfsl Page 2 of 9 04037BQW .xis ESC-2 SWDM 5.4.6.3 ESC-3 WSDOT 9-03.9(3) ESC-4 ESC-5 ESC-6 SWDM 5.4.3.1 ESC-7 ESC-8 SWDM 5.4.2.4 ESC-9 SWDM 5.4.2.2 ESC-10 SWDM 5.4.2.1 ESC-11 SWDM5.4.2.1 ESC-12 ESC-13 ESC-14 ESC-15 SWDM 5.4.2.3 ESC-16 WSD0T9-13.1(2) ESC-17 SWDM 5.4.4.1 ESC-18 SWDM 5.4.4.1 ESC-19 SWDM 5.4.5.2 ESC-20 SWDM 5.4.5.1 ESC-21 SWDM 5.4.5.1 ESC-22 SWDM 5.4.2.4 ESC-23 SWDM 5.4.2.5 ESC-24 SWDM 5.4.2.5 ESC-25 ESC-26 SWDM 5.4.7 $ $ 67.51 Each I 41 $ 85.45 CY $ 8.08 CY I sol $ 1.50 CY $ 1.38 LF I 10SOJ $ 1.38 LF $ 0.59 SY $ 1.45 SY $ 2.01 SY $ 0.53 SY I 1200qj_ $ 10.70 LF $ 16.10 LF $ 20.70 LF $ 2.30 SY .$ 39.08 CY I 101 $ 1,464.34 Each $ 2,928.68 Each I 11 $ 1,949.38 Each I 11 $ 17.91 LF $ 68.54 LF $ 0.51 SY $ 6.03 SY $ 7.45 SY $ 74.75 HR T 31 $ 97.75 HR T 3 Each ESC SUBTOTAL: 30% CONTINGENCY & MOBILIZATION: ESCTOTAL: COLUMN: Check out the DDES Web site at www.metrokc.gov/ddes - 11 270 11 646 11 1490 1 I 6360 11 391 11 29291 11 1949] 1 $ 14,553.20 $ 4,365.96 $ 18,919.16 A Unit prices updated: 02112102 Version: 04/22102 Report Date: 12/26/2004 Site Improvement Bor. -uuantity Worksheet Backfill & Compaction-embankment Backfill & Compaction-trench $ 8.53 I CY Clear/Remove Brush 1 by hand GI -3 I $ 0.36 I SY Clearing/Grubbing/Tree Removal GI -4 I i. §,876.16 I Acre 8,876.16 Excavation -bulk Gl-51 $ 1.50 I CY Excavation -Trench GI -6 I $ 4.06 I CY 2700 10,962.00 Fencing, cedar, 6' high GI -7 I $ 18.55 I LF GI-Bl$ 13.44 LF Gl-91 $1,271.81 Each $ 12.12 LF Fill & com.e.act -common barrow Gl-111$ 22.57 CY Fill & compact -_aravel base GI -121 $ 25.48 CY Fill & com.e.act -screened topsoll GI -131 $ 37.85 CY Gabion, 12" ~~~~ stone filled mesh GI -141 $ 54.31 SY Gabion, _18" deep, stone filled mesh GI -151 $ 74.85 I SY Gabion, 36" deep, stone filled mesh Gl-161 $ 132.48 I SY Grading, fine, by hand GI -171 $ 2.02 I SY Grading, fine, with grader Gl-181 $ 0.95 I SY Monuments, 3' Ion Gl-191 $ 135.13 I Each 135.13 2 270.26 Sensitive Areas Si_2n Gl-201 $ 2.88 I Each Sodding, 1" deep, sloped ground Gl-211 $ 7.46 I SY GI -221 $ 788.26 Da 0.5 394.13 0.5 394.13 GI -231 $ 1,556.64 Acre Traffic control crew ( 2 flaggers Gl-241 $ 85.18 HR Trail, 4n chipped wood Gl-251 $ 7.59 I SY Trail, 4" crushed cinder Gl-261 $ 8.33 I SY Trai1 1 4" top course Gl-27\ $ 8.19 I SY Wall, retaining, concrete Gl-281 $ 44.16 I SF Wall, rocke~ GI -291 $ 9.49 I SF Page 3 of 9 SUBTOTAL 754.06 26,403.55 *KCC 27 A authorizes only one bond reduction. 04037BQW .xis Check out the DDES Web site at www.metrokc.qov/ddes 3 0.5 ·- 26,628.48 394.13 49,783.61 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 .-~ IAC Grinding, 4' wide madline < 1000s IAC Grinding, 4' wtde machine 1000-2001 RI -2 lAC Grinding, 4' wide machine> 2000sy RI -3 1vaVDisoosal/Reoair RI -4 Barricade, tvnA I Rl-5 Barricade, tvne Ill l Permanent ) RI -6 Curb & Gutter, rolled RI -7 Curb & Gutter, vertical Rl-8 Curb and Gutter, demolition and disaos8 Rl-9 Curb, extruded asphalt Rl-10 RI -11 RI -12 RI-13 Sealant, asphalt RI -14 Shoulder, AC, ( see AC road unit orice) RI -15 Shoulder, gravel, 4" thick RI -16 Sidewalk, 4" thick RI -17 Sidewalk, 4" thick, demolition and discos RI -18 Sidewalk, 5" thick RI -19 Sidewalk, 5" thick, demolition and dispos Rl-20 RI-21 Rl-22 Rl-23 Striping, 4" reflectorized line RI -24 Page 4 of 9 ·Kee 27A authorizes only one bond reduction. 04037BQW.xls - Site Improvement Bar. ....;Quantity Worksheet $ 5.75 SY $ 1.38 SY $ 41.14 SY $ 30.03 LF $ 45.05 LF $ 13.27 LF I 1 1_11301 14,995.10 $ 9.69 LF j 215]_ _ __b083.35j $ 13.58 LF $ 2.44 LF $ 2.56 LF $ 1.85 LF $ 1.69 LF $ 0.99 LF $ -SY $ 7.53 SY $ 30.52 SY $ 27.73 SY $ 34.94 SY I 1301 4,542.201 3501 12,229.00 $ 34.65 SY $ 85.28 Each $ 5.82 Each $ 2.38 SF $ 0.25 LF SUBTOTAL 6,625.55 27,224.10 Check out the DDES Web site at www.metrokc.gov/ddes Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 - For KCRS '93, (additional 2.5" base) add RS-1 AC Overtav, 1.5" AC RS-2 AC Overtav, 'Z' AC RS -3 AC Road, 2", 4" rock, First 2500 SY RS-4 :Ac Road, 2". 4" rock, Otv. over 2500SY RS. 5 !AC Road, 3", 4" rock, First 2500 SY RS-6 AC Road, 3", 4" rock, Qty. over 2500 SY RS-7 AC Road, 5", First 2500 SY RS-8 AC Road, 5•, Qty. Over 2500 SY RS-9 AC Road; 6", First 2500 SY RS-1 AC Road, 6", Qty. Over 2500 SY RS -1 Asphalt Treated Base, 4" lhick RS· 1 Gravel Road, 4" rock, First 2500 SY RS-1, Gravel Road, 4" rock, Qtv. over 2500 SY RS .1, PCC Road, 5", no base, over 2500 SY RS -11 PCC Road, 6", no base, over 2500 SY RS -1! Thickened Edge RS -1 Page 5 of9 "KCC 27 A authmizes only one bond reduction. 04037BQW .xis - Site Improvement Bor. ~uantity Worksheet f§J§iii~l'!': $ 3.60 SY I 3001 1.080.ool 1970 $ 7.39 SY $ 8.75 SY $ 17.24 SY J i--·· I _!!1701 33,962.801 ·---.. 3901 $ 13.36 SY $ 19.69 SY I 300! .. 5,907.00 $ 15.81 SY $ 14.57 SY $ 13.94 SY $ 16.76 SY $ 16.12 SY $ 9.21 SY $ 11.41 SY $ 7.53 SY $ 21.51 SY $ 21.87 SY $ 6.89 LF l --i--1 l l 2201 SUBTOTAL 6,987.00 _____ 4_1,054.80 Check out the DDES Web site at www.metrokc.gov/ddes 6,723.60 1,515.80 9,643.40 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 Site Improvement Bor. ,.-<)uantity Worksheet Access Road, RID D-1 $ 16.74 SY 170 2.845.80 Bollards -fixed D-2 $ 240.74 Each . 2 481.48 Ballards -removable D-3 $ 452.34 Each 5 2,261.70 * (CBs mdude frame and lid) CB Typ8 I I· D-4 $ 1,257.64 Each I 1 I 1,257.641 41 5,030.561 31 3,772.92 D-5 $ 1,433.59 Each 1 D-6 $ 2,033.57 Each ·4 .8,134.28 1 I 2,033.571 D-7 $ 436.52 FT 20 8,730.40 41 1,746.08J D-8 $ 2,192.54 Each 1 2,192.54 ' for additional depth over 4' I D-9 $ 486.53 FT 3 _1_,459.59 D-10 $ 2,351.52 Each D -11 $ 536.54 FT D-12 $ 3,212.64 Each for additional deottl over 4' D-13 $ 692.21 FT :Through-curb Inlet Framework (Add) D-14 $ 366.09 Each !Cleanout, PVC, 4" D -15 $ 130.55 Each Cleanout, PVC, 6" D-16 $ 174.90 Each I I 231 4,022.701 Cleanout, PVC, 8" D-17 $ 224.19 Each Culvert, PVC, 4" D-18 $ 8.64 LF Culvert, PVC, 6" D-19 $ 12.60 LF Culvert, PVC, 8" D • 20 $ 13.33 LF Culvert, PVC, 12" D-21 $ 21.77 LF Culvert, CMP, 8" D-22 $ 17.25 LF Culvert, CMP, 12" D-23 $ 26.45 LF Culvert, CMP, 15" D-24 $ 32.73 LF Culvert, CMP, 18" D-25 $ 37.74 LF Culvert, CMP, 24" D-26 $ 53.33 LF Culvert, CMP, 30" D-27 $ 71.45 LF Culvert, CMP, 36" D-28 $ 112.11 LF Culvert, CMP, 48" D-29 $ 140.83 LF Culvert, CMP, 60" D-30 $ 235.45 LF Culvert; CMP, 72" D-31 $ 302.58 LF Page 6 of 9 SUBTOTAL 1,257.64 31,136.35 11,575.27 Unit prices updated: 02/12/02 *KCC 27 A authorizes only one bond reduction. Version: 4/22/02 04037BQW .xis Check out the DOES Web site at www.metrokc.9.ovlddes Report Date: 12/28/2004 .-. ~. -·- Culvert, Concrete, 8" . 0-32 Culvert;Concrete, 12• 0-33 Culvert, Concrete, 15" 0-34 Culvert, Concrete, 18" 0-35 Culvert, Concrete, 24" 0-36 Culvert, Concrete, 30" 0-37 Culvert,·Concrete, 36" 0-38 Culvert, Concrete, 42" 0-39 Culvert, Concrete, 48" 0-40 Culvert, CPP, 6 .. 0-41 Culvert, CPP, 8" 0 -42 Culvert, CPP, 12" · 0 -43 Culvert, CPP, 15" 0-44 Culvert, CPP, 18" 0 -45 Culvert, CPP, 24" 0 -46 Culvert, CPP, 30" 0 -47 Culvert, CPP, 36" 0-48 Ditching 0-49 Flow Dispersal Trench (1,436 base+) 0-50 French Drain (3' depth) 0-51 Geotextile, laid In trench, ...,..lypro ... ,Aene 0-52 Infiltration pond testing 0-53 Mfd-tank Access Riser, 48" dia, 6' deep 0-54 Pond Overflow Spillway 0 -55 Restrictor/Oil Separator, 12" 0 -56 IRestrictor/Oil Seoarator, 15" 0 -57 Restrictor/Oil Separator, 18" 0 -58 Riprap, olaced 0-59 Tank End Reducer (36" diameter) 0 -60 Trash Rack, 12" 0 -61 Trash Rack. 15" 0-62 Trash Rack. 18" 0-63 Trash Rack, 21" 0-64 Page 7 of 9 *KCC 27A authorizes only one bond reduction. 04037BQW .xis - Site Improvement Bor>-Ouantity Worksheet $ 21.02 LF $ 30.05 LF $ 37.34 LF $ 44.51 LF $ 61.07 LF $ 104.18 LF $ 137.63 LF $ 158.42 LF $ 175.94 LF $ 10.70 LF I I -, I I 6751 $ 16.10 LF $ 20.70 LF ~121 248.41 7501 155251 1201 $ 23.00 LF $ 27.60 LF 1 ~ I sol 1656 $ 36.80 LF $ 48:30 LF $ 55.20 LF $ 8.08 CY $ 25.99 LF $ 22.60 LF $ 2.40 SY $ 74.75 HR $ 1,605.40 Each $ 14.01 SY i --i 1 1 1 2sl $ 1,045.19 Each I I J J J 1J $ 1,095.56 Each $ 1,146.16 Each $ 39.08 CY I 11 273.561 41 156.32 $ 1,000.50 Each $ 211.97 Each I I I 1 I 211.97 $ 237.27 Each $ 268.89 Each $ 306.84 Each SUBTOTAL 521.96 17549.29 Check out the DDES Web site at www.metrokc.gov/ddes 7222.5 2484 350.25 1045.1~ 11101.94 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 .--. Site Improvement Bor.'--<)uantity Worksheet No. course rock & 4 • borrow PL-1 $. 15.84 SY 2· AC, 1_5· too course & 2.5" base cou PL-2 $ 17.24 SY i4" select borrow PL-3 $ 4.55 SY _1.5" top course rock & 2.5" base course PL-4 $ 11.41 SY Wl-1 Each Concrete Sidewalk Wl-2 $ 30.52 SY 140 4272.8 500 15,260.00 Grading Wl-3 $ 5,000.00 LS 1 5,000.00 Concrete Stairs Wl-4 $ 5,000.00 LS Metal Handrail Wl-5 $ 50.00 FT Wl-6 Wl-7 Wl-8 Wl-9 Wl-10 SUBTOTAL 4,272.80 20,260.00 SUBTOTAL (SUM ALL PAGES): 20,419.01 163,628.09 30% CONTINGENCY & MOBILIZATION: 6,125.70 49,088.43 GRANDTOTAL: 26,544.71 212,716.52 COLUMN: B C Page 8 of 9 "KCC 27A author1zes only one bond reduction. 04037BQW .xis Check out the ODES Web site at www.metrokc.qov/ddes 50 1 60 1,526.00 5,000.001 3,000.00J 9,526.00 91,630.22 27,489.07 119,119.29 D E Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 .-,-._ '--·' Site Improvement Bond Quantity Worksheet Original bond computations prepared by: Name: Plat of Nichols Place Date: 1 O-Nov-04 PE Registration Number: 33713 Tel.#: 425-885-7877 Firm Name: Core Desi~ Inc. Address: 14711 NE 29th Place, Suite #101 Project No: L03P0015 ROAD IMPROVEMENTS & DRAINAGE FACILITIES FINANCIAL GUARANTEE REQUIREMENTS Stabilization/Erosion Sediment Control (ESC) Existing Right-of-Way Improvements Future Public Road Improvements & Drainage Facilities Private Improvements Calculated Quantity Completed Total Right-of Way and/or Site Restoration Bond•r (First $7,500 of bond' shall be cash.) Performance Bond* Amount (A+B+C+D) = TOTAL Reduced Performance Bond' Total••• Maintenance/Defect Bond* 1 Total PERFORMANCE BOND· AMOUNT (A) $ 18,919.2 (B) $ 26,544.7 (C) $ 212,716.5 (D) $ 119,119.3 (A+B) $ 45,463.9 (T) $ 377,299.7 Minimum bond• amount 15 $1000. BOND• AMOUNT REQUIRED AT RECORDING OR TEMPORARY OCCUPANCY••• (E) $ T x 0.30 $ 113,189.9 OR (T-E) $ 377,299.7 Use larger of Tx30% or (f-E) PUBLIC ROAD & DRAINAGE MAINTENANCE/DEFECT BOND• (B+C) x 0.25 = $ 59,815.3 NAME OF PERSON PREPARING BOND· REDUCTION: Date: * NOTE: The word •bondn as used in this document means any financial guarantee acceptable to King County. ** f':IOTE: KCC 27A authorizes right of way and site restoration bonds to be combined W~en both are required. The restoration requirement shall include the total cost for all TESC as a minimum, not a maximum. In _addition, corrective work, both on-and off-site needs to be included. Quantities shall reflect worse case scenarios not just minimum requirements. F~r example, if a salmonid stream may be damaged, some estimated costs for restoration needs to be reflected in this amount. The 30% contin_gency and mobilization costs are computed in this quantity. -· NOTE: Per KCC 27A, total bond amounts remaining after reduction shall not be less than 30% of the original amount (T) or as revised b SURETY soNo RIDER NOTE: If a bond rider is used, minimum additional pertormance bond shall be fl REQUIRED BOND• AMOUNTS ARE SUBJECT.TO REVIEW AND MODIFICATION BY DOES Page 9 of9 04037BQW.xls Check out the DDES Web site at www.metrokc.gov/ddes major design changes. 331,835.8 !(C+D)-E Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 12/28/2004 NICHOLS PLACE, L04SR034, SECOND REVIEW COMMENTS All page references are based on 1998 King County Surface Water Design Manual (KCSWDM), 1993 King County Road Standards (KCRS) and King County Codes (KCC). HEARING EXAMINER'S CONDITIONS: 1/ Add note on plan that road improvements for mitigation of high traffic location V per condition 18 has been installed by Evendell Plat L01P0016 and Liberty ~ f prt Groove L03P0006. .:; t....uJ: c .>, c, { DRAWING COMMENTS: Sheet 1.01 ~ Fill in ordinance number 14903 and approved date May 10, 2004 on the upper right corner of the sheet. /, _Fill in activity number L04SR034 at the lower right comer of the sheet. Sheet 3.01 t..,V Urban subaccess S.E. 139th Street can serve up to 50 dwelling units. Therefore, lots 11, 17 and 21 shall not be accessed from joint used driveway tract JUDI A, B and C respectively. JUDI shall serve up to two lots per KCRS 3.01.C.3.a. J Expand shading on JUDI C to match the proposed tract which serve Lot 23 as shown on the preliminary plat map. A. Provide horizontal control information to show the layout of lots. µ. P., '/. Provide an ADA concrete ramp at the end of sidewalk near Lot 11. Sheet 4.01: J. J Show easement area to cover the encroachment of curb ramp on lot I. One foot easement behind sidewalk does not cover the whole encroachment, it may need 5 ft easement behind the right-of-way line. Some legends for roof drain, pipes and catch basins are missing on plan. 1 Sheet 4.21: Y. Provide the drain pipe and CB profile on 160'11 Ave SE as shown on the previous V submittal. - Sheet 4.31: I. Control CB3 is higher than the spillway. Move CB3 to the side of spillway to prevent blocking. ~LableCB2. V" Label 48" CB as CBI on the detail plan. rhe inlet pipe to CB3 shall be scaled down to 12", and label the se~n 1,ot1,,,....£. with 54" I.D. CB3. n,,_<)>u.J. 'o s " ~ f-I 3 f'l t:;f:r.J $' ~,1rovide two fixed and two removable bollards\:i the access read top~ three removable bollards. A~ fr'.,,._ Sheet 7.01: Recreation plan is being reviewed by the planning section. Sheet 7.02: <; ~ l 1' 1 -tit ,;; (r--a:r- 1 6-o -U.. ~ s'E 1. Street tree provision has not been included on bond quantity worksheet (BQW). Sheet 7.03: I. Update school walkway plan with the latest information and details as shown on the Evendell Mylar. 2. The walkway shall be behind the extruded curb on the frontage of Evendell, or move the extruded curb from the back of paved shoulder to the edge of travel way fonn Station 0+00 to Station 2+70 on 160'11 Ave SE ofEvendell Sheet C3.01. Call out the extruded cement concrete curb along walkway per KCRS Drawing No. 3-002 on plan. 2 r • Page 1 of 1 Wong, Wylie ___ , _____ , ____________ , _________ _ From: Wong, Wylie Sent: Wednesday, April 06, 2005 11 :22 AM To: 'dec@coredesigninc,com' Cc: 'kurt@soundbuilthomes.com'; Dye, Pete Subject: Nichols Place -SEPA condition Dave, There is a concern on the improvement of proposed plat relying on that of other neighboring proposed plats lately, and caused me to rethink the permit condition 18 again, SEPA condition 18 is quoted as follows, "The following have been established by SEPA as necessary requirements to mitigate the adverse environmental impacts of this development The applicant shall demonstrate compliance with these items prior to final approvaL Individually, or joint with other area developers, the applicant shall design and construct improvements to Southeast 1281h Street at 150th Ave SE to mitigate project impacts at the High Accident Location, Or, the applicant shall reduce the project impacts at the High Accident Location by completing the remainder of the improvements to Southeast 135th Street (Le, additional paving, concrete curbs, gutters and sidewalks), between 1581h Ave SE and 150th Ave SE, and revise the channelization at the intersection of 155th Ave SE/SE 135th Street to provide a southbound left turn lane," II appears you will use the second option which involves improvement on private property (require right-of-way dedication of Liberty Grove) and improvement of EvendelL Please address the compliance of condition 18 on the next submittal, including the bond amount and the legal right to construct public improvement on proposed private properly, ROW dedication of Liberty Grove will not happen until it gets recorded, Wylie Wong Engineer II Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 206-296-7044 Fax 206-296-6613 04/28/2005 : ,: : : : : : : : : : : : : : : : : : : : : : :; : ::;:::::: ;: : : : : : : : : : : : : : : : : : : : : : : : : :;: : : : : : : ,: : : : ; ,: : : : ; : : : : : ; : : : : : : ,: : : ,: ,:, :; ; : :,, : : ,:;:; :; : :, : : : : : : : : : : : : : : : : : :, : : : : : : : : : : : : : : : : :; : : : : : : : : : : : : 8A:CKWA,Tcl!;~:<?ALaJI;A.1:IOBS:::: ,: : :; :: : ,: : : : : : : : : : : : ::: : : ,: ':::: :, : :, : :,: : : : ; : ; : : : :: : : : : : : : : : :: : : : : : :,:,::: ;: : : ::: ; : : ;: : : : : : : : : : : : : : :, : ,: : :, : : :: : : ;: ;: : : : : : : : : : : : : :, : : :, : : : : : : : : : : : : : : :; : : : :,; :; : : :; : : : JOB NAME: NICHOLS PLACE PREPABEDBY: G. Brooks I lfOB NUMBER: 04037 DESIGN S£0RM: 25 YEAR ENTRANCE ENTRANCE EXIT OUTI.ET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. • ELEVATION ELEVATION ABEA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB !CFS) ""'ET) (IN) VALUE (FEET) (FEET) (SQFr1 (FT/SEC) (FEET) (FEET) (FEET) (FEET) (FEET) (FEET) (FEET) (FEET) (FEET) ""'ET) (FEET) (FEET) RIMEL 4A 4 2.04 60 18 0.012 445.00 447.01 1.77 1.15 0.02 450.66 o.oi 450.68 o.oi 0.02 450.71 448.51 0.o7 0.03 o.oi 450.68 455.85 4 5 1.67 24 12 0:012 451.87 452.35 0.79 2.13 O.o? 450.68 0.04 453.35 0.04 0.o7 453.46 453.35 0.00 0.00 0.00 453.46 455.85 ' 4 6 0.37 121 12 0.012 447.51 448.12 0.79 0.47 0.00 450.68 0.01 450.69 0.00 0.00 450.69 449.12 0.00 0.00 0.00 450.70 451.27 6 7 0.37 29 12 0.012 448.12 448.27 0.79 0.47 0.00 450.70 0.00 450.70 0.00 0.00 450.70 449.27 0.00 0.00 0.00 450.70 451.27 4 8 1.67 200 12 0.012 447.51 450.51 0.79 2.13 0.07 450.68 0.37 451.51 0.04 O.o? 451.62 45 I.SI 0.o7 0.00 0.04 451.59 459.33 8 9 1.67 24 12 0.012 455.55 456.03 0.79 2.13 0.07 451.59 0.04 457.03 0.04 0.o7 457.14 457.03 0.00 0.00 0.00 457.14 459.33 8 10 · 1.67 105 12 0.012 450.51 451.04 0.79 2.13 0.07 451.59 0.19 452.04 0.04 O.o7 452.15 452.04 O.o7 0.02 0.04 452.13 460.71 10 11 1.67 92 12 0.012 451.04 459.78 0.79 2.13 0.07 452.13 0.17 460.78 0.04 O.o? 460.89 460.78 0.00 0.00 0.00 460.89 463.28 10 12 1.67 75 12 0.012 451.04 451.42 0.79 2.13 O.o7 452.13 0.14 452.42 0.04 0.07 452.53 452.42 0.07 0.01 0.00 452.46 459.85 12 13 1.67 26 12 0.012 451.42 451.55 0.79 2.13 0.07 452.46 0.05 452.55 0.04 0.07 452.66 452.55 0.07 0.06 0.00 452.64 458.96 13 14 1.67 34 12 0.012 451.55 451.72 0.79 2.13 O.o7 452.64 0.06 452.72 0.04 0.07 452.83 452.72 0.00 0.00 0.00 452.83 456.52 15A 15 0.21 86 12 0.012 445.00 453.60 0.79 0.27 0.00 450.66 0.00 454.60 0.00 0.00 454.60 454.60 0.00 0.00 0.00 454.60 456.97 • :;:;:;:;:;:;:;:;:::::;:::;:;:;:;:;:;:;:;:;:::;:::::::;:;:::;:;:;:,:::::::::::::,:;:;:::;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;;;:;:;::;;;;:;:;:::;:;:;:;:;:;~.1;CKW.!,,:J;;R:C!J\LaJ1;A.1'IOBS::::::::::,:;::::,;,;:;:;:;:;:;:;:;:;:::::::;:;:;:;:;:;:;:;:;;=;=;,;=:=;;:;:;:;:;:;:;:;:::;:;:;:::;:;:;:;:;:;:;:;:;:;:::;:;:;:;:;:;;;:;:;:;:;:::::::;,;:;:;,;:;:;:;:;:;:;:;: OBNAME: NICHOLS PLACE PREPARED BY: G.Brooks I I.JOB NUMBER: 04037 . DESIGN SfORM: 100 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. • ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB (CFS) (FEO'T\ """ VALUE (FEET) (FEEi) (SQFI) (FT/SEC) (FEET) (FEET) tm'.RT\ (FEET) (FEET) (FEET) (FEET) ,...,.,.,.. (FERT\ (FEET) (FEET) (FEET) RIMEL 4A 4 2.83 60 18 0.012 445.00 447.01 1.77 1.60 0.04 450.74 0.04 450.78 o.oz 0.04 450.84 448.51 0.14 0.05 0.02 450.78 455.85 4 5 2.32 24 12 ' 0.012 451.87 452.35 0.79 2.95 0.14 450.78 0.09 453.35 O.o7 0.14 453.55 453.35 0.00 0.00 0.00 453.55 455.85 4 6 0.51 121 12 0.012 447.51 448.12 0.79 0.65 O.QI 450.78 0.02 450.80 0.00 0.01 450.81 449.12 O.QI 0.01 0.00 450.81 451.27 6 7 0.51 29 12 0.012 448.12 448.27 0.79 0.65 0.01 450.81 0.01 450.81 0.00 0.01 450.82 449.27 0.00 .0.00 0.00 450.82 451.27 4 8 2.32 200 12 0.012 447.51 450.51 0.79 2.95 0.14 450.78 0.72 451.51 0.07 0.14 451.71 451.5 I 0.14 O.Gl O.o7 451.66 459.33 8 9 2.32 24 12 0.012 455.55 456.03 0.79 2.95 0.14 451.66 0.09 457.03 0.o7 0.14 457.23 457.03 0.00 0.00 0.00 457.23 459.33 8 10 2.32 105 12 0.012 450.51 451.04 0.79 2.95 0.14 451.66 0.38 452.04 0.o7 0.14 452.24 452.04 0.14 O.Ql 0.07 452.22 460.71 10 II 2.32 92 12 0.012 451.04 459.78 0.79 2.95 0.14 452.22 0.33 460.78 0.07 0.14 460.98 460.78 0.00 0.00 0.00 460.98 463.28 10 12 2.32 15 12 0.012 451.04 451.42 0.19 2.95 0.14 452.22 0.27 452.48 0.o7 0.14 452.69 452.42 0.14 0.01 0.00 452.57 459.85 12 13 2.32 26 12 0.012 451.42 451.55 0.79 2.95 0.14 452.57 0.09 452.66 0.07 0.14 452.86 452.SS 0.14 0.11 0.00 452.84 458.96 13 14 2.32 34 12 0.012 451.55 451.72 0.19 2.95 0.14 452.84 0.12 452.96 0.07 0.14 453.16 452.72 0.00 0.00 0.00 453.16 456.52 ' ISA 15 0.29 86 12 0.012 445.00 453.60 0.79 0.37 0.00 450.74 0.00 454.60 0.00 0.00 454.60 454.60 0.00 0.00 0.00 454.60 456.97 • •. File Name File No:_ pate.> .. . L03P0015**NICHOLS PLACE L04SR034 ENGINEERING SITE REVIEW :.staff ' .. Ac.tivity (Note names, . LOG type of contact, 1/;t}fo4 0.; Ir//. . ,.,,..,. _A_ h -;?, ---~ cev,_ cf; /.7<nA /I -I U{,!Lb ., 'rhlvc, ... ' . . • . . ,, !- ., issue, resolution) . cB -~- .! ., . :· . ' ... --.,. .. ® .King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 March 21st, 2005 Kurt Wilson SB! Development, LLC P.O.Box 73790 Puyallup, WA 98373 RE: Plat ofNichols Place, L03P0015 Review Activity: L04SR034 Dear Mr. Wilson: Dave Cayton, P.E. Core Design, Inc. 14711 NE 291h Pl.,#101 Bellevue, WA 98007 Our office has completed the second review of engineering plans for the Evendell project. The attached list provides a summary of design issues which must be addressed in your next submittal. The review comments are based upon the design plans and technical information report received January 24th, 2005. · Once the initial review comments have been addressed, please submit three sets of revised plans and technical reports. To assist in reviewing the revised plans, the design engineer should prepare a written response for each issue identified in the attached comments. If you would like to discuss the design requirements for the project, please contact me at 206-296- 7044. Sincerely, ~//~ Wylie Wong · Engineer II Enclosure NICHOLS PLACE, L04SR034, SECOND REVIEW COMMENTS All .page references are based on 1998 King County Surface Water Design Manual (KCSWDM), 1993 King County Road Standards (KCRS) and King County Codes (KCC). HEARING EXAMINER'S CONDITIONS: 1. Add note on plan that road improvements for mitigation of high traffic location per condition 18 has been installed by Evendell Plat L01P0016 and Liberty Groove L03P0006. DRAWING COMMENTS: Sheet 1.01 1. Fill in ordinance number 14903 and approved date May 10, 2004 on the upper . right corner of the sheet. 2. Fill in activity number L04SR034 at the lower right corner of the ~heei. Sheet3.0I 1. Urban subaccess S.E. 139th Street can serve up to 50 dwelling units. Therefore, lots 11, 17 and 21 shall not be accessed from joint used driveway tract JUDT A, B and C respectively. JUDT shall serve up to two lots per KCRS 3.01.C.3.a. 2. Expand shading on JUDT C to match the proposed tract which serve Lot 23 as shown on the preliminary plat map. · 3. Provide horizontal control information to show the layout oflots. 4. Provide an ADA concrete ramp at the end of sidewalk near Lot 11. Sheet 4.01: 1. Show easement area to cover the encroachment of curb ramp on lot 1. One foot easement behind sidewalk does not cover the whole encroachment, it may need 5 ft easement behind the right-of-way line. 2. Some legends for roof drain, pipes and catch basins are missing on plan. 1 Sheet 4.21: 1. Provide the drain pipe and CB profile on 1601h Ave SE as shown on the previous submittal. Sheet 4.31: 1. Control CB3 is higher than the spillway. Move CB3 to the side of spillway to prevent blocking. 2. Lable CB2. 3. Label 48" CB as CB 1 on the detail plan. 4. The inlet pipe to CB3 shall be scaled down tci 12", and label the section or plan with 54" 1.D. CB3. 5. Provide two fixed and two removable bollards at the access road to pond, not three removable bollards. Sheet 7.01: Recreation plan is being reviewed by the planning section. Sheet 7.02: I. Street tree provision has not been included on bond quantity worksheet (BQW). Sheet 7.03: 1. Update school walkway plan with the latest information and details as shown on the Evendell Mylar. . 2. The walkway shall be behind the extruded curb on the frontage ofEvendell, or move the extruded curb from the back of paved shoulder to the edge of travel way form Station 0+00 to Station 2+70 on 1601h Ave SE ofEvendell Sheet C3.0l. Call out the extruded cement concrete curb along walkway per KCRS Drawing No. 3-002 on plan. 2 ® .King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 March 21st, 2005 Kurt Wilson SBI Development, LLC P.O.Box 73790 Puyallup, WA 98373 RE: Plat ofNichols Place, L03P0015 Review Activity: L04SR034 Dear Mr. Wilson: Dave Cayton, P.E. Core Design, Inc. 14711 NE 29th Pl.,#101 Bellevue, WA 98007 Our office has completed the second review of engineering plans for the Evendell project. The attached list provides a summary of design issues which must be addressed in your next submittal. The review comments are based upon the design plans and technical information report received January 24th, 2005. · Once the initial review comments have been addressed, please submit three sets of revised plans and technical reports. To assist in reviewing the revised plans, the design engineer should prepare a written response for each issue identified in the attached comments. If you would like to discuss the design requirements for the project, please contact me at 206-296- 7044. Sincerely, ~/?~ Wylie Wong Engineer II Enclosure NICHOLS PLACE, L04SR034, SECOND REVIEW COMMENTS All page references are based on 1998 King County Surface Water Design Manual (KCSWDM), 1993 King County Road Standards (KCRS) and King County Codes (KCC). HEARING EXAMINER'S CONDITIONS: 1. Add note on plan that road improvements for mitigation of high traffic location per condition 18 has been installed by Ev end ell Plat LO 1 POO 16 and Liberty Groove L03P0006. DRAWING COMMENTS: Sheet 1.01 l. Fill in ordinance number 14903 and approved date May 10, 2004 on the upper right corner of the sheet. 2. Fill in activity number L04SR034 at the lower right corner of the sheei. Sheet 3.01 l. Urban subaccess S.E. 139th Street can serve up to 50 dwelling units. Therefore, Jots 11, 17 and 21 shall not be accessed from joint used driveway tract JUDT A, B and C respectively. JUDT shall serve up to two lots per KCRS 3.01.C.3.a. 2. Expand shading on JUDT C to match the proposed tract which serve Lot 23 as shown on the preliminary plat map. 3. Provide horizontal control information to show the layout of lots. 4. Provide an ADA concrete ramp at the end of sidewalk near Lot 11. Sheet 4.01: I. Show easement area to cover the encroachment of curb ramp on lot I. One foot easement behind sidewalk does not cover the whole encroachment, it may need 5 ft easement behind the right-of-way line. 2. Some legends for roof drain, pipes and catch basins are missing on plan. I --------------------------------------------------- Sheet 4.21: I. Provide the drain pipe and CB profile on 160 1h Ave SE as shown on the previous submittal. Sheet 4.31: I. Control CB3 is higher than the spillway. Move CB3 to the side of spillway to prevent blocking. 2. Lable CB2. 3. Label 48" CB as CBI on the detail plan. 4. The inlet pipe to CB3 shall be scaled down to 12", and label the section or plan with 54" I.D. CB3. 5. Provide two fixed and two removable bollards at the access road to pond, not three removable bollards. Sheet 7.01: Recreation plan is being reviewed by the planning section. Sheet 7.02: 1. Street tree provision has not been included on bond quantity worksheet (BQW). Sheet 7.03: 1. Update school walkway plan with the latest information and details as shown on the Evendell Mylar. 2. The walkway shall be behind the extruded curb on the frontage ofEvendell, or move the extruded curb from the back of paved shoulder to the edge of travel way form Station 0+00 to Station 2+70 on 1601h Ave SE ofEvendell Sheet C3.01. Call out the extruded cement concrete curb along walkway per KCRS Drawing No. 3-002 on plan. 2 ® King County Department of Development and Environmental Setvices Land Use Services Division 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 (206) 296-6600 ,:TY (206) 296-7217 Date Received: . . . Alternative formats available upon request I Activity Number: To submit a site engineering plan, this form and the following information is required from the Applicant/Consultant: · · Address: City, State & Zi Short Subdivision Subdivision Right-of-Way Use Permit """""""""""'"""' Checklist (attached) Three (3) Sets of Plans Two (2) copies of Technical Information Report (TIR) · Geo-tech/Soils Report, Other Special Reports Legal Description of Property KCRTS files on diskettes (optional) E-mail: E-mail: PE license No. 0 0 0 0 0 0 0 Current Certificate of Applicant Status design'ating the consultant above as representative. I,--------------------'' being duly sworn, state that I am the owner or · (print name). officer of the corporation owning property (or designated "Applicant/Agent") described in the legal description filed with this application and that I have reviewed the rules and regulations of the Department of Development and Environmental SeNices (DOES) regarding the preparation and filing of this application and that all statements, answers and information submitted with this · application are in all respects true, accurate and complete to the best of my knowledge and belief. Du~ing ihe review of this application, it may be necessary for ODES staff to make one cir more site visits. By signing this application form, you are giving permission for these visits. If it is rent.al .Property, the owner hereby agrees to notify tenants of possible site visits. Printed.name Signature Site Engineering Review Application & Checklist le-appckl-serchec.pdf 01/13/03 Page 1 of 10 ,··~ ·-.-,' · Activity Number: ------------ PROJECT INFORMATION (1998 Surface Water Design Manual) * Project Name: -----------'---------------------- * Development Number: -----------* Activity.Number: * Project Number: --------------* Parcel Number: * Project Location (approximate cross street): -----,---------~-------- * Telephone: * Owner (or rep.): * Design Engineer: (. ). ___ _ ( ) __ _ * E-mail Address: * Peer: ---'--------------- * DDES Preliminary Engr: ( ) ___ _ ( ), ___ _ * DDES Planner: ( ), ___ _ * DDES Review Engr: ( ), ___ _ * DDES Engr. Tech: ----~-------( ), ___ _ Instructions: Consulting Engineer must check items that were completed, note N/A for items that do not apply, and for items left blank, please provide a brief explanation why not completed. Consulting QQfS Engineer Reviewer . [ l [ l [ l [ l [ l [ l [ l [ l [ [ [ l [ [ [ [ l [ J [ J [ l [ l [ l [ l [ l [ l [ l [ l [ [ l l [ l [ l [ l [ J [ l * Blue Engineer File Created with Key Documents * Plat Ordinance Number: ........... date: ______ _ * Hearing Examiner's Report .................................... date:-----~- * DDES Staff Report .................................................. date: ---'----'------ * Preliminary Plat Map ............................................... date: ______ _ * Revised Preliminary Plat Map ................................. date: ------- * 5-year Expiration .................................................... date: ------- * Project information on Permits Plus ROUTING TO OTHER KING COUNTY SECTIONS . * Wetland Report/Plans: Route Date: -------Response Date: * Geotechnical Report/Plans: Route Date: -------Response Date: * Grading Report/Plans: Route Date: _______ Response Date: * Structural Report/Plan; (Include two reports with design calcs, two structural plan sheets, one set of engineering plans, one soils report and two copies of manufacturing specs, as necessary.) · Route Date: Response Date: * Landscape/Park Report/Plan: Route Date: Response Date: * Traffic Report/Plan: Route Date: Response Date: * Other Report/Plan: Route Date: Response Date: GENERAL SUDIVISION REQUIREMENTS · Site plans match preliminary approval application map Compliance with conditions of preliminary approval letter Compliance with Mitigated Determination of Non-Significance * Denotes completion by engineering technician Site Engineering Review Application & Checklist /e-appckl·serchec.pdf 01/13/03 Page 2 of 10 Consulting ~ Engineer ReViewer [ l [ l [ l [ -l [ l [ l [ l [ l [ l [ J [ l [. J [ l [ l [ J [ l [ J [ J [ J [ J [ J [ J [ J [ J [ l [ J [ J [ l [ J [ l [ J [ J [ l [ l [ ] [ l [ l [ l [ l [ l [ l [ l [ J [ J [ l [ l [ J [ J [ l [ l [ J [ J [ J [ l [ J [ J [ l [ l [ l [ l [ l [ J [ J [ J [ l [ J [ l [ l [ l [ J [ J [ J [ l [ J [ l [ J [ l [ l [ l [ J [ J [ l [ l [ l [ l [ l [ l [ l Activity Number: GENERAL REQUIREMENTS -SURFACE WATER DESIGN MANUAL 2.3.1 Profiles (1) * Existing/Proposed roadway centerline (CL) at SO' stations increasing, reading from left to right. Show stationing of points of smooth · vertical curve, with elevations (2) * Final storm drain profile of structures within the right-of-way (3) * Minimum cover dimensions if less than 2.0' ( 4) * Property boundaries (5) * Profiles for conveyance systems of 12" and larger pipes or channels oth_er than roadway ditches 2.3.1.2 General Plan Format (SWDM 2.3.1) (1) * Sheet size 24'.' X 36"; quality reproducible (2) * King Co. Standard Map Symbols; existing/proposed (SWDM Ref. 7A) (3) * Project Information/Cover Sheet a. * Title: Project name and DDES file number b. * Table of Contents, if more than three plan sheets c. * Vicinity Map d. * Name & phone of utility field contacts and One call Number: 1~800-424-5555 (water; sewer, gas, power) e. * Pre-construction/Inspection notification requirements f. * Name·and phone of erosion control supervisor g. * Name & phone of Surveyor h. * Name & phone of Owner/Agent I. * Name & phone of Applicant j. * Legal description k. * Plan approval block for DDES I. * Name & phone of engineering firm preparing plans m. * Fire Marshal's approval stamp (if requlr!!d) n. * Mailbox location approval by U.S. Postal Service o. * List of conditions of preliminary approval on all site improvements ( 4) * An overall site plan if more than three plan sheets are used a. * The complete property area development b. * Right-of-way infor_mation c. * Street names and road classification d. * All project phasing and proposed division boundaries e. * All natural and proposed drainage collection and conveyance systems with catch basin numbers shown (5) * Each sheet and TIR is stamped, signed, and dated by a Professional Engineer licensed in Washington State (6) * Survey control plan sheet stamped by licensed PLS in Washington State (7) * Title block on each sheet a. * Development title b. * Name, address and phone number of engineering firm c. * Revision block d. * Page numbering e. * Sheet title (e.g., road and drainage, grading, etc.) (8) * A blank approval block ( 4" high x 6" wide) on each plan sheet (9) * The location and label for each section or other detail shall be provided (10) * Sensitive Area Setbacks designated as required by the SAO (K.C.C. chapter 21A.24) (11) * All match lines correspond to the sheet referenced (12) * Division phase lines with limits of construction (13) * Wetlands are numbered or marked "uninventoried" (14) * General, Drainage, * Structural notes (Reference 78) * Denotes completion by engineering technician Site Englneertng Review Application & Checklist le-appckl-serchec.pdf 01/13/03 Page 3 of 10 •, ' Activity Number: !:;onsultiog GENERAL REQUIREMENTS -SURFACE WATER DESIGN MANUAL (Continued) QQfS !;ogioe~r R~l!'.i~w~r 2.3.1.2 Plan View [ l [ l (1) * Property lines, R/W lines, roadway widths shown ( existing and proposed) [ l [ l (2) .* Existing/Proposed road features; CL, edge pavement, edge shoulder, ditches, curb, sidewalk, & access pts [ l [ l (3) * Existing/Proposed Topographic Contours @ 2', 5' > 15% slope, 10' > 40% slope [ l [ l (4) * All affected utilities are shown; utility poles marked [ l [ l (5) * All roads and adjoining subdivisions identified [ l [ l (6) * Existing/Proposed R/W dimensioned and shown [ l [ l (7) * Existing/Proposed surfacing shown [ l [ l (8) * Scale l" = 50' Horizontal (l" = 100' for lots> 1 Acre) [ l [ l (9) * Tract table if three or more tracts. Identify name, size and purpose. [ l [' l (10) * Road classifications [ l [ l (11) * Floodplains [ l [ l (12) * Setbacks (street, interior, facility, rockery, etc. (K.C.C. 21A.12.030, 110-170, 220) * Denotes completion by engineering technician Site Englneertng Review Application & Checklist le-appckl-serchec.pdf 01/13103 Page 4 of 10 ,, ..... '--,, ' Activity Number: ----------------- ROADWAY DESIGN-KING COUNTY ROAD STANDARDS (K.C.R.S.) 1993 K.C.R.S Variance Number: Approval Date: ___________ ~ CQOSYltiog QQ!;S Engioggc Reviewer Roadway ~ [ l [ l [ l 2.03C Maximum Superelevation (2.05) [ l [ l [ l 2.03E Maximum grade (2.11) [ l [ l [ l 2.03E Maximum grade (2.11) [ l [ l [ l 2.03F Stopping Sight Distance (2.05, 2.12) [ l [ l [ l 2.03F Stopping Sight Distance (2.05, 2.12) [ l [ l [ l 2.03G Entering Sight Distance (2.05, 2.13) [ l [ l [ l 2.03G Entering Sight Distance (2.05, 2.13) [ l [ l [ l 2.03H Minimum pavement width [ l [ l [ l 2.03H Minimum pavement width [ l [ l [ l 2.031 Minimum roadway width [ l [ l [ l 2.031 Minimum roadway width [ l [ l [ l 2.03] Minimum R/W width [ l -[ l [ J 2.03] Minimum R/W width [ l . [ l [ l 2.03] Min. R/W width (incl. 1 ft behind walk/curb) [ J [ J [ l 2.03L Minimum Half-Street width (2.07) . [ l [ l [ l 2.05, 2.10 Horizontal curves [ l [ l [ l 2.05, 2.10 Horizonta I curves [ J [ l [ J 2.08A Minimum cul-de-sac diameters [ l [ l [ l 2.086 Maximum cul-de-sac length / maximum cross-slope (6%) [ l [ l [ l 2.10A Intersection minimum curb radius [ l [ J [ J 2.10A Intersection minimum curb radius [ l [ l [ l 2.10A Intersection minimum R/W corner radius [ l [ l [ l 2.10A Intersection minimum R/W corner radius [ J [ J [ J 2.10A Angle of Intersection between 85 and 95 degrees, minimum centerline radius [ l [ [ l 2.106 Intersection minimum spacing [ J [ J [ J 2.lOC Intersection landing [ l [ l [ l 2.lOC Intersection landing Site Engineering Review Appllcaaon & Checklist · 1e-appckl-serchec.pdf 01/13/03 Page 5 of 10 ---------- Activity Number: ROADWAY DESIGN-KING COUNTY ROAD STANDARDS (Continued) Cgosu!tlng J2Q5 EOQiO~t Bevi~er Boadway !SCBS [ l [ l [ l 2.11 Grade brakes -max. 1 % at intersections [ l l 2.13 Driveways; ESD [ l [ l [ l 3.01 Driveways [ l [ l [ l 302A & B Sidewalks and widths [ [ l [ l 3.05 Handicapped access ramp (WSDOT F-3) [ l [ l [ l 4.01 Proper road sections and surfacing (Dwg. Nos. 1-001 -1-006) [ l [ l 4.01 Proper road sections and surfacing (Dwg. Nos. 1-001 -1-006) [ [ l l 4.01 Proper road sections and surfacing (Dwg. Nos. 1-001 -1-006) [ l [ l 4.0lF Pavement overlay for widening and channelization [ l [ l [ l 4.02 Residential street design [ l [ l [ l 4.02 Poor subgrade evaluation [ l [ l [ l 4.03 Arterial pavement design [ l [ l [ l 4.05 Pavement markings, channelization and tapers (requires KCDOT review) [ l [ l [ l 5.01 Rock facings (Dwg. Nos. 5-004 -5-007) [ l [ l [ l 5.02 Side, slopes, generally 2H: 1 V [ l [ l [ l 5.03 Street trees .and landscaping [ l [ l [ l 5.04 Mail boxes (Dwg. Nos. 5-010 -5-012) [ l [ l [ l 5.05 Illumination plan or notes (requires KCDOT review) [ l [ l [ l 5.06A Survey monuments to be disturbed are shown [ l [ l [ l 5.08 Bollards for walkways or maintenance roads . [ l [ l [ l 5.11 Roadside obstacles [ l [ l [ ] 7.02A-D Grass-lined, pipe or rock lihed, special designed ditch [ l [ l [ l 7.01A Minimum self-cleaning pipe flow velocities (KCSWDM Section 4.3.4) [ l [ l [ l 7.03L Beveled ends for culverts in ROW [ l [ l [ l 7.04A Maximum spacing between catch basins [ l [ l [ l 7.04E • CBs taller than 5' (grate to invert) are Type II [ l [ l [ l 7.0SA-E · Manholes for CBs > 12' depth; Vaned grates, locking covers and grates for all CBs (except roiled grates) [ l [ l [ l 7.058 Through-curb Inlets or flanking inlets at sags [ l [ l [ l 8.02G Utility pole relocations/ retaining walls --structural design requires review by BSD [ l [ [ l 8.038 Open cutting of existing ·roadways, patch requirements NOTES: Site Engineering Review Appllcatlon & Checklist le•appckl•serchec.pdf 01113/03 Page 6 of 10 Activity Number: DRAINAGE DESIGN -SURFACE WATER DESIGN MANUAL {1998} SWDM Variance Number: -----------Approval Date: Consulting QQfS Engineer Reviewer [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l ' [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l 2.3.1,1, Technical Information Report Project Overview (Section 1) Figure 1: TIR Worksheet Figure 2: Site Location Figure 3: Drainage Basins a. Acreage of subbasins b. Identify all site characteristics c .. Show existing discharge points to and from the site d. Show routes of existing, construction, and future flows at all discharge points and downstream hydraulic structures e. Use a minimum USGS 1:2400 topographic map as a base f. Show and cite the length of travel from the farthest upstream end of a proposed storm system in the development to any proposed flow control facility Figure 4: Soils a. Show the project site b. the area draining to the site c. the drainage system downstream for the distance of the downstream analysis Preliminary Conditions Summary, Variances, & SWDM adjustments (Section 2) Off-Site Analysis (Section 3) Flow Control and Water Quality. Facility Analysis.and Design (Section 4) Existing Site Hydrology (Part A) Developed Site Hydrology (Part B) Performance Standards (Part C) Flow Control System (Part D) Water Quality System (Part E) · Conveyance System Analysis and Design (Section 5) Special Reports and Studies (Section 6) Flood plain/floodway Analysis (SWDM 4.4.2) Other Permits (Section 7) Erosion/Sedimentation Control Design (Section 8) Bond Quantities Worksheet and R/D Facility Summary (Section 9) Maintenance and Operations Manual (Section 10 for privately maintained or special non- standard features) · 4.1 Conveyance System Design and Analysis Conveyance systems are in easements with BSBLs Pipes are parallel to and alongside property lines Easements for pipes outside of right-of-way Catch basin lids are flush with ground line Plan & Profile (pipe type, length, elevs., dia., & slope) Minimum cover for pipes (4.3.4D-U) Stations and Offsets provided for each CB In roadway Roof drain stubouts are shown, type of pipe described Arrows show direction of all surface and system flows Energy dissipation at outlets Pipe clearance Headwater analysis for inle.ts Surcharges (backwater analysis may be required) Open channels Site Engineering Review Application & Checklist le-appcld-serchec.pdf . 01/13103 Page 7 of 10 Activity Number: DRAINAGE DESIGN -SURFACE WATER DESIGN MANUAL (Continued) Consulting ·QQfS Engineer Reyiewer l l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l 5,3 Retention/Detention Facility Design R/D Facilities are in tracts or dedicated R/W with setbacks 5.1.1 Downspout Infiltration Feasibility 5.1.3 Perforated stub-out connections Emergency overflow path -conveyance Setbacks Flow-through system 5.3.1 Detention Ponds Dam Safety Compliance [ l [ l [ l [ l Two crdss-s.ectlons through pond (one x-section to include control structure) f ~ 2 • 2 ; Designed as flow-through system [ l [ l [ l [ l [ l [ l [ l [ ] [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ J [ J [ l [ l [ l [ l [ J [ J [ l [ . l [ J [ l J [ l [ l [ J [ l [ l [ l [ J [ l [ l NOTES: Side slopes interior 3H: 1 V or fenced Vertical Interior retaining walls stamped by licensed structural civil engineer. Min. 25% of perimeter vegetated and.no steeper than 3:1 Embankments -Geotech (key requirements) Primary overflow Secondary inlet . Emergency Overflow Spillway / Freeboard Soil and compaction requirements described (95% modified proctor) Access road min. turning radius, maximum grade, min. width, fences or gates Minimum berm width of 6 feet Pond sign Fencing and planting requirements 5.3.2. Detention Tanks 6" of dead storage in tank bottom Minimum pipe diameter of 36" Materials and structural stability Access risers and CBs are spaced properly with max. depth from finished grade to tank invert shall be 20 feet and accessible by maintenance vehicles Buoyancy 5.3.3 Detention Vaults Structural package submitted for approval Grate over sump with 2' x 2' hinged access door Access to tank positioned a max. of 50 feet from any location. (if over 3 foot cover use cone riser). Removable 5 x 10 panel if vault greater than 1,250 sq. ft. fioor area Maximum depth from finished grade to vault invert to be 20 feet Minimum Internal height shall be 7 feet, min. width shall be 4 feet min. Ventilation pipes provided in all four corners 5.3.4 Control Structures Section and· plan view shown top' scale 2. • Z-, ':tnf,ri'1if~ /!,ft 7 Orifice size and elevation on plans. match calculations { f ~f1) Site Engineering Review Appl/cation & Checklist /e-appckl-serchec.pdf 01/13103 Page 8 of 10 Activity Number: DRAINAGE DESIGN -SURFACE WATER DESIGN MANUAL {Continued) Consulting · .QQ&S Engineer Reviewer [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l NOTES: 5.4 Infiltration Facilities Appropriate soils logs and testing procedures in TIR 100-yr overflow conveyance Spill Control device Pre-settling Design water surface set back of 20 feet from external tract, easement or property lines 6.1. Water Quality Design 6.1 Water Quality Menus 6.2 Water Quality facilities 6.2.2A Water Quality sequencing 6.2.3 Setbacks, slopes and embankments 6.2.4 Facility Liners 6.3.1 Blofiltration swales and soil amendments 6.3.1 Swale geometry, plantings, flow conveyance (high flows) velocity and access 6.3.4 Filter strip geometry (slopes) 6.4. Wetpool Facility Designs 6.4.1 & 6.4.2 Wetponds and Wetvaults 6.4.1.1 Sizing basic or large 6.4.1.1 Cell Requirements 6.4.1.2 Berms, Baffles, Slopes 6.4.1.2 Inlet/Outlet Design 6.4.1.2 Access, setbacks _and plantings 6.4.3 Stormwater Wetlands; overflow criteria 6.4.3.2 Wetland geometry, liners, access, plantings 6.4.4 Combination Detention and Wetpool facilities 6.4.4.2 Detention & wetpool geometry, berms, baffles and slopes 6.4.4.2 access and plantings 6.5 Media Filtration Facility Designs 6.5.1 Presettling/pretreatment 6.5.2 Sand _Filters -Basic and Large 6.5.2.1 Sizing,. geometry 6.5.2.2 Overflow/bypass, underdrain and access 6.5.3 Sand Filter Vaults 6.5.3.2 Pretreatment, flow-spreading, energy dissipation 6.5.3.2 Sizing, geometry 6.5.3.2 Overflow/bypass, underdrain and access · Sile Engineering Review Application & Checklist le-appckl'serchec.pdf 01/13/03 Page 9 of 10 Consulting DOES Activity Number: ---------'------ TEMPORARY EROSION/SEDIMENTATION CONTROL SURFACE WATER DESIGN MANUAL. Engineer Reviewer [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ l [ [ [ [ l [ l [ l [ l [ l [ l [ l [ l l [ l [ l [ l [ l [ l [ l [ l [ ' l [ l [ J [ l [ l [ l [ l [ l [ l [ J [ l [ [ J [ J [ l [ J [ l [ l [ l [ l NOTES: Appendix D Erosion/Sedimentation Control Plan Native Growth Protection Easement (NGPE) ,delineation fencing at NGPE boundaries w/detail (D.4.1.1) General (1) Separate plan sheet showing entire site w/features (2) Limits of clearing to be flagged in the field are shown (3) Perimeter control of runoff at property boundaries (D.4.3) ( 4) Construction entrance with detail (Fig. 0.4.G) (5) Existing/Proposed Drainage features identified (streams, wetlands, bogs, springs, seeps, swales, ditches, pipes & depressions (6) Construction sequence (D.10.4) (7) Utility corridors .other than roadways shown (8) Standard ESC plan notes (D.10.3) (9) Sufficient conceptual details to convey design intent (10) Drainage divides and flow directions shown (11) Specify requirements & best management practices (12) Show cut and fill slopes with catch lines indicated (13) Highly sensitive site (D.5.4) Conveyance (1) Inverts, min. slopes, & cover for temporary pipes (D.4.6.2) (2) Grades, dimensions, & direction of open channel flow (D.4.6.3) (3) Off-site runoff bypasses disturbed areas Soils/Ground Cover Protection ( 1) · Pertinent info. from soils report is added to plans (2) Areas receiving special treatment are specified (jute netting, rock lining, or sod) (D.4.2) (3) Soils cover practices and locations of disturbed areas (D.4.2) Sedimentation facHitles (1) Sediment pond/trap w/structures shown (D.4.5.1 &2) (2) Details of sediment pond riser (Fig. D.4.K) (3) Control/restrlctor device location and details (4). Mulch specifications/berm & slope cover recommendations (D.4.2) (5) Rock specifications & detail for rock check dams (Fig. D.4.R) (6) Check dam spacing as required for on-site slopes (7) Front and side views of rock check dams shown (Fig. D.4.R) (8) Silt fabric fence locations shown w/detail and specs. (D.4.3.1) I m,,, ,~ ~fblbk Ktl ~llf,/1,t7P • ~,,~id ~lvt 5fe '\. ... )en,,f,i( ~(~ ~trltl«1hJ Site Engineering Review Application & Checklist le-appck1..:serchec.pdf 01/13/03 Page 10 of 10 -' 1 2 3 4 5 6 7 8 • Proposed No. 2004-0013.1 KING COUNTY Signature Report May 10, 2004 Ordinance 14903 •:.. l 200 King County Courthouse 516 Third A venue Seattle, WA 98104 Sponsors Phillips AN ORDINANCE authorizing a subdivision on certain property located west of 160th Ave SE, south of SE 138th St (if extended) at 13815 160th Ave SE, Howard Stansbury, US Land Development Assoc agent for Mark & Barbara Nichols, department of development and environmental services file no. L03P0015. 9 BE IT ORDAINED BY THE COUNCIL OF KING COUNTY: 10 SECTION 1. This ordinance does hereby adopt and incorporate the findings and 11 conclusions contained in the March 2, 2004, report and decision by the hearing examiner 12 and adopts as the decision of the council the decision by the hearing examiner to approve 13 the transfer of eight density credits and to grant the application for preliminary approval, 14 subject to the conditions recommended by the examiner, of the proposed twenty-three-lot 15 plat ofNichols Place, received May 19, 2003, in department of development and 16 environmental services file no. L03P0015. I Ordinance 14903 • • 17 SECTION 2. The appeal of the March 2, 2004, decision of the hearing examiner 18 by Citizens for a Responsible Evendell ("C.A.R.E.") is denied. 19 Ordinance 14903 was introduced on 1/12/2004 and passed by the Metropolitan King County Council on 5/10/2004, by the following vote: ATTEST: Yes: 10 -Mr. Phillips, Ms. Edmonds, Ms. Lambert, Mr. Pelz, Mr. McKenna, Mr. Ferguson, Mr. Hammond, Mr. Gossett, Ms. Hague and Mr. Constantine No:O . Excused: 3 -Mr. von Reichbauer, Mr. Irons and Ms. Patterson KING COUNTY COUNCIL KING CO Y, WASHINGTON Anne Noris, Clerk of the Council Attachments None 2 • • March 2, 2004 OFFICE OF THE HEARING EXAMINER KING COUNTY, WASHINGTON 400 Yesler Way, Room 404 Seattle, Washington 98104 Telephone (206) 296-4660 Facsimile (206) 296-1654 N = = .,,.. ?J :JC: n REPORT AND DECISION gc, ;r.• -~1'~ SUBJECT: -<7) Department of Development and Environmental Services File No. L03P0015 n-;,:. Proposed OrdinanceNo. 2004-0013 '2. -;:. NICHOLS PLACE '2 Proposed Preliminary Plat and Proposal for Transfer of Density Credits Location: . ' West of 160th Avenue Southeast, south of Southeast 138th Street Applicant: (if extended) at 13815-160th Avenue Southeast U.S. Land Develo.pment Associates, represented by Michael J. Romano Centurion Development Services 22617 -81h Drive Southeast Bothell, Washington 98021 Telephone: ( 425) 486-2563 Intervenor: C.A.R.E., represented by Gwendolyn High 13405 -l 58'h Avenue Southeast Renton, Washington 98059 ~ I cJ1 ~ 'P. c . .n .,:- King County: Department of Development and Environmental Services, represented by Karen Scharer 900 Oakesdale Avenue Southwest Renton, Washington 98055 Telephone: (206) 296-7114 Facsimile: (206) 296-6613 SUMMARY OF DECISION/RECOMMENDATION: Department's Preliminary Recommendation: Department's Final Recommendation: Examiner's Decision: Approve, subject to conditions Approve, subject to conditions (modified) Approve, subject to conditions (modified) {Tl 0 rn -..:::: rn a L03P001S-Nicho1s Place • • Page2of14 ISSUESffOPICS ADDRESSED: • Transfer of density credits Surface water drainage • Road improvements Safe walking conditions • Tree preservat_ion SUMMARY: Application for a transfer of a maximum of eight density credits, and approval of a preliminary plat to subdivide approximately 3.82 acres into 23 lots in the urban area, are granted preliminary approval. EXAMINER PROCEEDINGS: Hearing Opened: Hearing Closed: February 24, 2004 February 24, 2004 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. FINDINGS, CONCLUSIONS & DECISION: Having reviewed the record in this matter, the Examiner now makes and enters the following: FINDINGS: I. General'loformation: Proponent: Representative: Location: Sectionffo"'.nship/Range: Acreage Plat: Current Zoning: Nui:nber of Lots: U.S. Land Development Association P.O. Box 22200 Seattle, WA 98122 Michael Romano Centurion Development Services 22617 8th Dr. SE, Bothell, WA 98021 Phone: 425-486-2563 Facsimile: (425) 486-3273 Einail: Michael.romano@verizon.net The site is located west of 160th Ave. SE, south of SE 138th Street (if extended) at 13815 160th Ave. SE SE 14-23-05 3.82 acres R-4 Parcels # 142305 9058 23 proposed using 8 TDR's ' . L03P0015 -Nichols Place • Density: Lot Size: Proposed Use: Sewage Disposal: Water Supply: Fire District: School District: Community Plan: Drainage Subbasin: King County Permits: Complete Application Date: Threshold Determination: Date of Issuance: KC Permit Contact: 6 dwellings per acre 4,320 square feet single family City of Renton Water District #90 King County Fire District # 25 Issaquah Newcastle Lower Cedar River Subdivision June 19, 2003 • Mitigated Determination ofNonsignificance (MONS) December 23, 2003 Karen Scharer, Project Manager II, Current Planning Section, LUSD Page 3 of 14 Phone no. (206) 296-7114 or email at karen.scharer@metrokc.gov 2. Except as modified herein, the facts set forth in the King County DOES preliminary report to the Hearing Examiner for the February 24, 2004, public hearing are found to be correct and are incorporated herein by this reference. Said report is exhibit no. 2 in the hearing record. ' The drainage detention area planned to serve the subject property will be sized to accommodate surface water drainage from the proposed development of Nichols Place only. The proposed plat of Evendell, adjacent to the north, will have a separate surface water detention facility. 3. On February 4, 2004 the King County Hearing Examiner issued his report and decision granting preliminary approval for the revised plat of Evendell, based upon transfer of 20 density credits that would allow for development of70 lots on 12.43 acres. This would provide a density of5.6 dwelling units per acre on the Evendell property, which is adjacent to the north of the subject property. The maximum density permitted in the R4 zone classification is 6 dwelling units per acre, utilizing density incentives or transferred development rights. The Examiner's decision approving the Evendell plat revision, file no. LOIPOOl6, is incon,orated by reference in the hearing record of this proceeding. 4. To the east, south and west of the subject property are larger lots and parcels, ranging from approximately 12,600 square feet to 2.25 acres in size. 5. King County's "Transfer of Development Rights (TOR)" program is governed by Chapter 2 lA.37 of the King County Code. The TOR program establishes a property right which is separable from the fee-simple title to certain lands within King County, and provides a method for the transfer and utilization of that new right, which is colloquially known as a development right or "density credit." A density credit has a substantial market value. The underlying purpose of the TOR program is to allow for the.movement of residential density from rural areas to urban areas of King County. The code is intended to provide, " ... an efficient and streamlined administrative review system to ensure that transfers of development rights to receiving sites are evaluated in a timely way and balanced with other County goals and policies, and are adjusted to the specific conditions of each receiving site." KCC 21A.37.0I0.2. LOJPOOIS -Nichols Place • • Page4of14 Receiving sites are required to meet the provisions ofKCC 21A.37.030. Those requirements are that the receiving site: I. be within an unincorporated urban area, zoned R-4 or higher, or be within a potential annexation area; 2. be within a city where new growth is or will be encouraged, and where facilities and services exist or public investments in facilities and services will be made; or 3. be within RA-2.5 and RA-5 zoned parcels, subject to stringent criteria. The subject property is within the first category of eligible receiving sites listed in KCC 21A.37.030. Sites within the unincorporated urban growth area are not required to have any specific level of available facilities and services. Development approvals that utilize density credits must meet only those service criteria that apply generally to development of the number of dwelling units proposed on the site. King County Code chapter 21A.12 governs densities and development standards in residential zones. The R-4 zone in the urban residential area allows for a maximum density of six dwelling units per acre, which may be achieved only through the application of residential density incentives or transfers of development rights. KCC 21 A.12.030.A. and B. l. When density credits are used, development shall comply with dimensional standards of the zone having a base density most comparable to the total approved density. KCC 21A.37.030.B. 6. The foregoing provisions of the King County Zoning Code are generally consistent with policies of the King County Comprehensive Plan governing residential land use. In particular, the Zoning Code provisions are generally consistent with: Policy U-113, that new residential development in the Urban Growth Area should occur where facilities and services can be provided at the lowest public cost and in a timely fashion; Policy U-114, that the County seek to achieve an average zoning density ofat least seven to eight homes per acre in the Urban Growth Area through a mix of densities, allowing for lower density zones to recognize existing subdivisions with little or no opportunity for infill or redevelopment; Policy U-122, that supports increases in urban density through a rezone or a proposal to utilize density transfer, when the proposal will help resolve traffic, utility, parks or open space deficiencies in the immediate neighborhood. This proposal will extend sewer service further into the urban area, and will provide recreation facilities and open space available to future residents on the subject property. 7. The subject property is in the City ofRenton's potential annexation area. The City is considering modifications to its comprehensive plan that would limit density on property in this area to a maximum of 4 dwelling units per acre. · However, those plan changes were not in effect at the time a complete application for this subdivision was submitted, and the property is not presently within the City ofRenton'sjurisdiction. 8. DOES, this Applicant and the developers of other properties in the vicinity have agreed upon right-of-way dedications and road improvements to mitigate the impact of traffic which this L03POOl5 -Nichols P1ace • • Page 5 of 14 proposal will generate adjacent to and in the immediate vicinity of the proposed development. The dedications and improvements to be provided by this proposal will include the west side of 160th A venue Southeast. Improvements that will be made to Southeast 136"' Street, from 156"' Avenue Southeast to 160"' Avenue Southeast, will result in a new east-west route that will divert traffic from the high accident intersection of Southeast 128"' Street and 160"' Avenue Southeast. Those Southeast 136"' Street improvements may be made by other developers prior to the development of Nichols Place, or may be made jointly by this plat in cooperation with other developers. 9. The Issaquah School District plans to operate a school bus stop for elementary school children at the intersection of Southeast. 136th Street and 160th Avenue Southeast. The internal road improvements and front.age improvements on 160th Avenue Southeast will provide a safe route for children to use between the lots of this subdivision and that bus stop. Additionally, the Applicant will provide school walkway improvements pursuant to the requirements of condition no. 22 below, to provide safe walking conditions to the high school and middle school serving the area. I 0. Surface water from the adjacent property to the north (Evendell) sheetflows onto the subject property, which is divided into an easterly and westerly basip. The west basin is approximately 1.48 acres in area. Surface water from this basin currently sheetflows over the west and south boundaries, creating nuisance conditions on adjacent properties. A surface water drainage adjustment has been approved to divert surface water flow from the west basin to the east basin, where surface water detention will be sized to provide level 2 flow control. It is proposed to allow some undetained runoff from the southwest portion of the subject property-to continue to. sheetflow over the west and south property boundaries to maintain, but not increase, existing flows. The development of the plat ofEvendell, together with Nichols Place, will control and divert surface water runoff away from Southeast 139th Place and 156th Avenue Southeast, where severe conveyance problems exist. Improvements that already have been made to the conveyance system on 160th A venue Southeast, and additional improvements required as conditions of this and other developments in the area, are expected to provide adequately for the conveyance of surface flow as far as lot 6 of Cedar Park 5-acre tracts. Lot 6 of Cedar Park 5-acre tracts has undersized culverts, identified as locations 50 and 51 in the level 3 off site drainage analysis prepared for the plat of EvendelL Surface water backs up within a depressed area on that property where it causes nuisance flooding. However, the owner of that property has_ advised the Applicant that he will not grant permission to improve the existing conveyance channel through lot 6, and King County has advised the Applicant that it would not approve relocating that channel. The requirement of the surface water drainage adjustment that " level 2 flow control be provided is sufficient mitigation, according to the King County Surface Water Drainage Manual, for the nuisance flooding impact that this development will have on lot 6 of Cedar Park 5-acre tracts. 11. It is anticipated that a sewage lift station will be located within the plat of Nichols Place. This facility is likely to be located in the southeast corner of the plat, within the area now identified as • • L03PQ01S -Nichols Place Page 6 of 14 "detention/recreation." A separate tract may be required for the lift station. No part of the lift station tract will count toward the requirement for provision of onsite recreation area. 12. The size of the lots proposed by the Applicant generally does not allow for the retention of existing trees within the plat. Removal of trees from property being developed commonly subjects trees on adjacent properties to stress and increases the windthrow hazard. Trees that remain in an area which is substantially cleared present an increased risk to persons and property on and off the site of the remaining trees. However, there is no King County regulation applicable to the subject property that restricts clearing or tree removal to protect trees on adjacent properties from increased stress or risk of windthrow. The environmental review of this proposal did not identify impacts of clearing or tree removal as a significant adverse environmental impact of the proposal. CONCLUSIONS: I. 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. . ' 2. 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, drainage ways, streets, other public ways, transit stops, potable water supply, sanitary waste, parks and recreation, 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. 3. The conditions for final plat approval required below are in the public interest and are reasonable requirements to mitigate the impacts of the development upon the environment. 4. The dedications of land or easements within and adjacent to ihe proposed plat, as required for final plat approval or as shown on the proposed preliminary plat submitted by the Applicant on May 19, 2003, are reasonable and necessary as a direct result of the development of this proposed plat, and are proportionate to the impacts of the development. 5. The Applicant has negotiated for the purchase of development rights that would allow for an increase in the number oflots to be developed on the subject property to a total of 23. The development of 23 lots on the subject property will be within the maximum density of 6 dwelling units per acre permitted in the R4 zone classification in the urban area. The proposed development of the subject property, utilizing up to 8 density rights, is consistent with all applicable development standards and other provisions of the king county code. Provisions of the City of Renton Comprehensive Plan concerning density of development on this property are not applicable to this proposal. 6. The road improvements proposed and agreed to by the Applicant, including those shown on the · May 19, 2003 preliminary plat and set forth in the conditions below, will reasonably mitigate the impacts of traffic generated by the proposed development. LOJPOO 15 -Nichols Place • • Page 7 of 14 7. Safe walking conditions for children who walk to school from the subject property will be provided by using one of the alternatives for improvements incorporated into this proposal and set forth in condition no. 20 below. 8. The conditions of approval of the surface water drainage adjustment L03V0036, and the conditions recommended by DOES and agreed to by the Applicant, incorporated into the conditions below, adequately mitigate the impacts of surface water drainage from this proposed development in accordance with adopted King County standards. 9 There is no applicable provision of the King County Code to restrict the removal of trees in the course of the development of the subject property, or to protect trees on neighboring properties from increased stress and risk ofwindthrow. DECISION: The proposed preliminary plat of Nichols Place, as received May 19, 2003, utilizing up to 8 density credits (transferable density rights) is approved, subject to the following conditions of final plat approval: I. 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. a. . The plat shall comply with the maximum density (and minimum density) requirements of the R-4 zone classification. All lots shall meet the minimum dimensional requirements of the R-6 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. b. The Applicant shall provide Transfer of Density Credit documentation to ODES prior to final approval to allow transfer of a maximum of eight density credits. 4. The Applicant must obtain final approval from the King County Health Department for abandonment of existing septic systems on-site. 5. 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). 6. 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. 7. 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 oflots 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 LOJPOOIS -Nichols Place • • Page 8 of 14 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 and applicable updates adopted by King County. DOES approval of the drainage and roadway plans is required prior to any construction. b. Current standard plan notes and ESC notes, as established by DOES 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 ODES and/or the King County 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 plans on file." . < d. The stormwater detention design shall comply with the Level 2 Flow Control requirements per the 1998 King County Surface Water Design Manual (KCSWDM). e. The storm water control facility 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. f. If a sewage lift station is located within the subject property, it shall be placed within a separate tract or easement area, that shall not be counted when computing the provision of onsite recreation area. g. When engineering plans are submitted for review, the owners of the adjacent property to the southwest (15652 Southeast 139th Place) shall be notified that the plans have been filed with DOES and that they are available for public review. 8. The drainage detention facility shall be designed to meet, at a minimum, the Level 2 Flow Control and Basic Water Quality menu in the 1998 King County Surface Water Design Manual (KCSWDM). 9. (Condition no. 9 is deleted.) I 0. A surface water adjustment (L03V0036) is approved for this subdivision. All conditions of approval for this adjustment shall be met prior to approval of the engineering plans. I I. The following road improvements are required to be constructed according to the 1993 King County Road Standards (KCRS): L03POOJ5 -Nichols Place • • Page 9of 14 a. SE 139th St. shall be improved at a minimum to the urban subaccess street standard. b. FRONTAGE: The frontage of the site along 160th Ave SE (west side only) shall be improved to the urban neighborhood collector standard. c. Tracts A, B and C shall be improved as joint use driveways per Section 3.0 I of the KCRS. These driveways shall be owned and maintained by the lot owners served. Notes to this effect shall be shown on the engineering plans and on the final plat map. d. Modifications to the above road conditions may be considered according to the variance provisions in Section 1.08 of the KCRS. 12. There shall be no direct vehicular access to or from 160"' Ave. SE from those lots which abut this street. A note to this effect shall appear on the engineering plans and final plat. 13. All utilities within proposed rights-of-way must be included within a franchise approved by the King County Council prior to final plat recording. 14. The Applicant or subsequent owner shall comply with King County Code 14.75, Mitigation Payment System (MPS), by paying the required MPS_ fee an,d administration fee as determined by the applicable fee ordinance. The applicant has the option to either: (I) 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,"AII 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. 15. Suitable recreation space shall be provided within one tract that may be separate or may be combined with the drainage tract in accordance with KCC 21A.14.180. Improvements shall be consistent with the requirements ofKCC 21A.14.180 and KCC 21A.14.190, including provision of sport court[ s ], children's play equipment, picnic table(s ], benches, etc. a. A detailed recreation space plan (i.e., landscape specs, equipment specs, etc.) shall be submitted for review and approval by ODES and King County Parks prior to or concurrent with the submittal of the engineering plans. This plan shall comply with Ordinance# 14045. b. A performance bond for recreation space improvements shall be posted prior to recording of the plat. I 6. A homeowners' association or other workable organization shall be established to the satisfaction of DOES which provides for the ownership and continued maintenance of the recreation, open space and/or sensitive area tract(s); I 7. Street trees shall be included in the design of all road improvements, and shall comply with Section 5.03 of the KCRS and KCC 21A.16.050: • • L03POOl 5 -Nichols Place Page 10oft4 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 DOES iflocated 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 DOES prior to engineering plan approval. g. 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 ODES 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 current County fees. 18. The following have been established by SEPA as necessary requirements to mitigate the adverse environmental impacts of this development. The Applicant shall demonstrate compliance with these items prior to final approval. Individually, or joint with other area developers, the Applicant shall design and construct improvements to Southeast I 28th Street at 160"' Ave. SE to mitigate project impacts at the High Accident Location. Or, the Applicant shall reduce the project impacts at the High Accident Location by completing the remainder of the improvements to Southeast 136th Street (i.e. additional LOJPOOIS-Nichols Place • • Page II oft4 paving, concrete curbs, gutters and sidewalks), between 158th Avenue SE and 160th Avenue SE, and, revise the channelization at the intersection of 156th Avenue SE/SE 136th Street to provide a southbound left tum lane. School Mitigation Fees 19. 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. School Walkways 20. , The Applicant, individually or in conjunction with other developers, shall construct an off-site walkway to Liberty High school from the site. The walkway shall be constructed within the right-of-way from 160th Ave SE, east along SE 135th Street to 166th Ave SE, and south to Liberty High School at SE 136th Street, or via alternative right-of-way and easements that become available and are approved by ODES. One accepta~le alternative would be to use future right-of-way of Southeast 136th Street and 162nd Avenue Southeast to connect with the sidewalk improvement of"five lot subdivision," and through the plat of"five lot subdivision"/LOOP0023 to the southwest gate of Liberty High School. The walkway shall be designed and constructed in accordance with the 1993 King County Road Standards and shown on the engineering plans for DOES review and approval. Any surfacing alternative from the King County Road Standards (KCRS 3.09) may be submitted for approval through a road variance application. ORDERED this 2nd day of March, 2004. County Hearing Examiner pro /em TRANSMITTED this 2nd day of March; 2004, to the parties and interested persons of record: Marshall Brenden I 8225 SE I 28th Renton WA 98059 Robert Darrow Haozous Engineering 13428 -45th Court Mukilteo WA 98275 Ronda Bryant 15406 SE 136th Street Renton WA 98059 Shirley Day 14412 -167th Pl. SE Renton WA 98059-6828 Carolyn Ann Buckett 16524 SE 145th St. Renton WA 98059 Edward June & Kristy Hill 13527 156th Ave. SE Renton WA 98059 L03P0015-Nichols Place Kathy Graves 13020 -160th Ave. SE Renton WA 98059 Rebecca Lind City of Renton I 055 S Grady Way Renton WA 98055 Mark & Barbara Nichols 13815 -160th Ave. SE Renton WA 98059 Roger Paulsen 15657 SE 139th Place Renton WA 98059 Seattle KC Health Dept. E. Dist. Environ. Health 14350 SE Eastgate Way Bellevue WA 98007 Penny Thorbeck 15650 SE 138th Pl. Renton WA 98059 Laura Casey DDES/LUSD Wetland Review MS OAK-DE-0100 Karen Scharer DDES/LUSD Current Planning MS OAK-DE-0100 Bruce Whittaker DDES/LUSD Pre!. Review Engineer MS OAK-DE-OIOO • Victor & Gwendolyn High 13405 -158th Ave. SE Renton WA 98059 James Mahoney 14011 -160th Ave. SE Renton WA 98059 Gary Norris Gary Struthers & Associates 3150 Richards Road #200 Bellevue WA 98005 Mike Romano Centurion Development Services 22617 8th Drive SE Bothell WA 98021 Claude & Eloise Stachowiak 15652 SE 139th Pl. Renton WA 98059-7422 Kevin M. Wyman 16540 SE 149th St. Renton WA 98059 Kristen Langley DDES/LUSD Land Use Traffic MS OAK-DE-0100 Steve Townsend DDES/LUSD Land Use Inspections MS OAK-DE-0100 • Page 12 of 14 Don & Diane Kezele 15657 SE 137th Pl. Renton WA 98059 Kathy Nelson Transportation Dept. 805 -2nd Ave. S. Issaquah WA 98027 Richard & Anita Oliphant 16519 SE 145th St. Renton WA 98059 Vicki & Dale Roppe 14005 -160th Ave. SE Renton WA 98059 Howard Stansbury Centurion Development 22617 -8th Dr. SE Bothell WA 98021 Greg Borba DDES/LUSD MS OAK-DE-0100 Carol Rogers DDES/LUSD MS OAK-DE-0100 Larry West DDES/LUSD Geo Review MS OAK-DE-0100 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$250.00 (check payable to King County Office of Finance) on or before March 16, 2004. 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 • • · L03POOl 5 -Nichols Place Page 13 of 14 Clerk of the King County Council on or before March 23, 2004. Appeal statements may reler 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 I 025, King County Courthouse, 516 3"' Avenue, Seattle, Washington 98104, 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 THE FEBRUARY 24, 2004, PUBLIC HEARING ON DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVlCES FILE NO. L03POOl5. James N. O'Connor was the Hearing Examiner in this matter. Participating in the hearing were Karen Scharer, Bruce Whittaker and Kristen Langley, representing the De1prtment; Michael Romano and Duana Koluskova representing the Applicant; and Gwendolyn High, Kristy Hill, Claude Stachowiak, Gary Noris, Diane Kezele, Ronda Bryant, and Robert Darrow. The following exhibits were offered and entered into the record: Exhibit No. I Exhibit No. 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Exhibit No. 3 Exhibit No. 4 Exhibit No. 5 Exhibit No. 6 Exhibit No. 7 Exhibit No. 8 Exhibit No. 9 Exhibit No. I 0 Exhibit No. I I Exhibit No .. 12 Exhibit No. 13 Exhibit No. I 4 Exhibit No. I 5 Exhibit No. I 6 DOES file no. L03POOl5 DOES preliminary report for L03POOI5, with the following attachments: Lot plat design Density calculations (R-4 with 8 TD Rs}, dated 5/29/03 Memo from Issaquah School District, dated 5/23/03 Certificate of water availability, dated 6/18/03 City of Renton letters, dated 6/15/01, 1/15/03 and 1/14/04 City of Renton sewer certificate, dated 5/18/01 Certificate of Transportation Concurrency, dated 5/22/02 Corrections/revisions to the 2/24/04 Preliminary Staff Report Application for land use permit (no. L03TY 404}-Nichols Place zone reclassification, received 5/19/2003 Environmental checklist, received 5/19/2003 SEPA mitigated determination of non-significance, issued I 2/23/2003 Affidavit of posting indicating a posting date of 6/30/2003, received 7/02/2003 Site plan (23 lot preliminary plat map), received 5/19/2003 Assessors map (I) SE 14-23-05, revised 12/03/2000 Density Credit Transfer Agreement for 5 TDRs, dated 2/20/2004 Density Credit Transfer Agreement for 3 TDRs, dated 2/20/2004 Traffic Impact Analysis by Garry Struthers Assoc., received 5/19/2003 Revised Traffic Impact Analysis, received I 1/12/2003 .Walkway study prepared by dmp, inc., dated 8/18/2003 Walking Route Analysis, annotated by ODES, prepared 2/23/2004 Email from Issaquah School District re: school walkways as related to plat conditions of LOOP0023, dated 3/10/2003 LOJPOOI S -Nichols Place .Exhibit No. 17 Exhibit No. 18 Exhibit No. 19 Exhibit No. 20 Exhibit No. 21 Exhibit No. 22 Exhibit No. 23 Exhibit No. 24 Exhibit No. 25 Exhibit No. 26 Exhibit No. 27 Exhibit No. 28 Exhibit No. 29 Exhibit No. 30 Exhibit No. 31 Exhibit No. 32 Exhibit No. 33 Exhibit No. 34 Exhibit No. 35 Exhibit No. 36 JNO:ms L03POOl5 RPT • • Page 14ofl4 TIR by Haozous Engineering, PS, dated 5/18/2003 King County SWDM adjustment, no. L03V0036, dated 9/04/2003 Wetland and Drainage Corridor Site Reconnaissance Assessment by Habitat Technologies, dated I 0/11/2002 Tributary area map, annotations by DOES, prepared 2/2004 Haozous Engineering update/response to screening letter, dated 10/27/2003 Hearing Examiner Report and Decision for Evendell (file no. L03RE038), dated 2/04/2004 Email from Shirley Day, dated 2/03/2004 Letter from Gwendolyn High for CARE, dated 1/26/2004 Email from James Mahoney, dated 7/09/2003 Email from Claude & Eloise Stachowiak, dated I I /16/2003 Letter from Bill & Dona Mokin, dated 2/07/2004 Letter from Anita & Richard Oliphant, dated 1/29/2004 Statement from Diane Kezele, dated 2/09/2004 Statement from Anita & Rich Oliphant, dated 2/24/2004 CARE response, dated 2/24/2004 CARE updated household list Not used Sign-in sheet for 2/24/2004 hearing . ' Revisions to traffic study from Gary Norris ofGarry·Struthers Assoc., dated 2/24/2004 Statement from Claude R. & Eloise M. Stachowiak, dated 2/23/2004 ® • King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 September 4, 2003 Mike Romano Centurion Development Services 22617 Eighth Drive SE Bothell, WA 98021 • RobertH. Darrow, P.E. Haozous Engineering, P.S. 13428 -45th Court Mukilteo, WA 98275 RE: Nichols Place Subdivision 1998 KCSWDM Adjustment Reguest (File No. L03V0036) Dear Applicant and Engineer: The Land Use Services Division, Engineering Review Section, has completed review of the . adjustment request for the Nichols Place subdivision. You are requesting approval for an adjustment from the 1998 King County Surface Water Design Manual (KCSWDM) Core Requirement No. 1, Section L2.l, Discharge at the Natural Location. Our review of the information and a site visit provides the following findings: l. The proposed Nichols Place subdivision is located at 13815 1601h Avenue SE in east Renton. The 23 lot, 3.8 acre, proposed Nichols Place subdivision is filed under Land Use Services Division (LUSD) file number L03P0015. 2. The Nichols Place subdivision is located in the Orting Hills sub basin of the Lower Cedar River basin. The site is. subject to the Level Two flow control and Basic water quality requirements of the 1998 KCSWDM. 3. A low, north/south ridge separates the site into eastern and western subbasins. The smaller western subbasin sheetflows to the southwest across the west and south property lines onto adjoining parcels. These flows eventually reach 1561h Avenue SE via SE 139th Place. The larger eastern subbasin sheetflows across the south property line and into the roadside ditch on the west side of 160th Avenue SE where all flows from the eastern subbasin eventually converge. All of the site's runoff would eventually recombine in the Cedar River. The parcel to the north sheetflows onto this site but is also being developed as the proposed Evendell plat. Under developed conditions, the Evendell plat's contribution of sheetflow to the Nichols Place site would be significantly reduced. Nichols Place/L03V003. • September 4, 2003 Page 2 of3 4. The proposal is to collect most runoff from the project site and direct it to a single detention and water quality facility located in the southeast comer of the site. The allowed release would then travel south on the west side of 160'h Avenue SE. Nuisance flows across the west and south property line would be significantly reduced. An increase in flow volume would occur in the 1601h Avenue SE conveyance path. It is unclear if frontage improvements are included in the conceptual drainage 'plan. 5. No decorative ponds or shallow wells have been identified that would be affected by the proposed diversion. 6. The Level One Drainage Analysis identified downstream drainage complaints associated with the proposed discharge location. Recent conveyance upgrades have been installed along this route presumably to mitigate for these previous complaints. Due the accumulative effect of increased development in this area, more conveyance upgrades are needed. 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 1601h Avenue SE with the following conditions: 1. The release rates for the detention facility will be based on only that portion of the site that naturally drains to.the location that is being diverted to. 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 Level Two flow control standard in the 1998 KCSWDM. A 10 to 20 percent volumetric factor of safety must be applied to all storm events requiring detention. 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. The onsite drainage facility must be located in a public right-of-way, recreation space tract with easement or storm drainage tract dedicated to King County. 5. Any 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 or the design requirements, please contact Mark Bergam at (206) 296-7270. Nichols Place/L03V003, September 4, 2003. Page 3 of3 Sincerely, James Sanders, P.E. · Development Engineer Engineering Review Section Land Use Services Division • Jim Chan, P.E. Supervising Engineer Site Engineering and Planning Section Building Services Division cc: Curt Crawford, P.E., Managing Engineer, Stormwater Services Section, KCDNR Randall Parsons, P.E., Senior Engineer, Engineering Review Section, LUSD Bruce Whittaker, Senior Engineer, Engineering Review Section, LUSD Karen Scharer, Project/Program Manager II, Current Planning Section, LUSD Mark Bergam, P.E., Senior Engineer, Engineering Review Section, LUSD • · King County Department of Development And Environmental Services 900 Oakesdale A venue SW Renton, WA 98055-1219 Project Name: Nichols Place Plat Project Address: SEY.. of Section 14 T23N. R5E Applicant: Mr. Mike Romano Signature: Address: Centurion Development Services 22617 81 " Drive SE Bothell WA 98021 Phone: ( 425) 486-2563 Date: • DOES File No. DOES Engineer/Planned Name: A03P0063 Bruce Whittaker. P.E. Design Engineer (submitting variance): Phone: Robert H. Darrow. P.E. ( 425) 745-5872 Si~~ Date: 5/18/03 Engineering Firm Name: Haozous Engineering, P.S. Address: 13428 -45"' Court Mukilteo, WA 98275 DESCRIPTION OF THE VARIANCE REQUEST: !_Standard Request We request that the design of the stonnwater facility that manages stonnwater from developed portions of Nichols Place be allowed to divert dr;unage from a net area of L 12 acres from the west basin to the east basin on the site. APPLICABLE SECTION($) OF STANDARDS: The adjustment request is applicable to Core Requirement # l: Discharge at the Natural Location, Section 1.2.1 of the Surface Water Design Manual (King County Department ofNatural Resources, 1998). JUSTIFICATION (aee one-page attachment): AUTHORIZED SIGNATURES: DOES D111!C1Dr1Deslgnee llelermination: _ Approval Denial _ DOES Approval Signed: . Date: 'f • 4f, 'l) 3 CONDITIONS OF APPROVAL: ~ See attached memo dated: _ __,4'-•-''/L·:::.0-"!,'---- DOES, Land Use s«vices Division, Er¢-rlng R""""' SupetVisor. ODES, Bldg. Serv. Div., Sit& ~ & Plannlng Super-..or: L03V0036 MAY 19 2003 K.C. D.D.E.S. King County Department of Development And Envirorunental Services 900 Oakesdale A venue SW Renton, WA 98055-1219 • Nichols Place -Diversion of Drainage -Adjustment Request JUSTIFICATION: Description of Site The Nichols Place Plat project is a proposed residential development located within the Renton Highlands area of unincorporated King County. The proposal for development includes building 23 single-family dwellings on approximately 3.8 acres. Offsite road improvements along 160th Avenue SE are also proposed. The site is located within the Orting Hills sub basin of the Cedar River watershed (King County Department of Natural Resources, 1999). The site and area of offsite · improvements consist of two basins. The east onsite basin consists of2.34 acres under · existing conditions and the offsite improvements consist of0.11 acre. The topography of the east basin generally slopes from the northwest to the southeast. The west basin consists ·of l.48 acres under existing conditions. The topography of the west basin generally slopes . from the north to the southwest. Runoff from the west basin sheet flows to adjacent yards. of single-family residences to the southwest and pasture to the south. Stormwater Design Under developed conditions, stormwater from the east basin will be collected and treated onsite to basic water quality standards with a combined wetpond/detention pond. Detention will be sized with a I 0% factor of safety and will accommodate the flow transferred from the west basin and bypass of runoff from the offsite road improvements. Stormwater from the offsite road improvements will be treated with a separate wet vault in the right-of-way near the southeast comer of the site. Level 2 RID standards are required by the King County Flow Application Maps and are recommended by Lower Cedar River Basin and Nonpoint Action Plan. Under developed conditions, 1.12-acres in the west basin will be routed to the wetpond/detention pond in the east basin. To compensate for this diversion of drainage, an area of0.36 acre of roofs and yards in the southwest portion of the site will be allowed to sheet flow off the site without deteqtion. The area of the developed area was adjusted to approximate runoff amounts from the existing westerly basin (See Figures 2 & 3). The following areas would contribute to the developed westerly basin: ? • • Lot Descri tion of Contributin Flow 15 16 17 Runoff from roofs in the developed west basin will be spread using downspout dispersion systems. Runoff from yards will not be collected, but allowed to infiltrate or continue to flow through the grass. The lots selected for downspout dispersion abut the property line and dispersion approximate the discharge location of the existing flow pattern. Managing runoff with the proposed diversion results in the following features: • A larger combined wetpond/detention pond with a I 0% factor of safety will manage runoff in the easterly basin and will discharge to the ditch system along 160th Avenue SE. • The discharge from the developed west basin will approximate the runoff from the existing westerly basin, although it will be somewhat less. • Considering that flow from the east basin is matching existil1g and flow from the west basin is somewhat less than existing, the combined developed discharge is expected to be less than the existing basins. • Facilities to be maintained by King County for this plat will be adjacent to the plat entrance along 160th Avenue SE. References King County Department of Parks, Planning, and Resources, 1990. Sensitive Areas Map Folio. King County Environmental Division, 1990. Wetlands Inventory Notebook Volume 2 East. King County Department of Natural Resources, 1998. Surface Water Design Manual. King County Surface Water Management Division, 1993a. Cedar River Current and Future Conditions Report. f .-l ,;Jt,"'·' ~-,=:;:;_~~~~~,J,:~u ,/-,~ ' L, ,,Cc < . ! ·-/ /'/ / PROP9SED ,,, , . '•, ! t~::""' "'~ _ ., o, .. ,E;Y,ENQ.E[L PLAT ~ '·-----r·-.-~·--·-·-·------·---··-······ .. -------.,,../ .. ,\ ~ , "exwest" 1.48 AC=~ ~~.~ st". '.'2~3~.AC .. ,.,.,,. ,.f ;:,. "bye a st.. ,' (OJ 1 -.~£)::1 . i ". '» ~\ I "" H09 ~-\ ' 'i""-):f.: i ·,,;,~"irn-r· r.·rJ ~.:;;-. J ••• ~~ ~------~ ":~~~ .. ----)! --,. ---I<·-" -: ......... ~ -~---·-_:/ .----,--!:~_-::· .. : -~ :-: .... : :·:=-~::. :'-: .. -::!~ ~-~:. ::;,::~.:~. -~.: ~ :·. ·:··::~ '. ~.-::J;~;~~;;,~~~~:t~{~;A~iii:~ ~~:- 1?:Jse ~· "'-·1-__ ....... , 1 ···-· I/ < I 1·····,·"·"t·J"''".">'F'~i;'';/)'"!'>''1:--·· ..... I · 1· •.· ·· ,,; <i" , ., ··~·· ' ... '"' ·. ---· ... 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" ""':i] r.t""'Io'5:36 A . ) " .El ·, --1-;r .,. --···· 21 l J''~ ··-......, ~ "-¥· ..... , ! . s.mne"f.,m .. ·J ' \. .. , , " .. , .. -........ __ I ? ~ "\_ L~~:0-; H2~\l!\"~ J "',..;-:v, ·1n:·1'11;., ~'7r.c~--,,, ' 22 ·,;',, ' . :--i\~ ., ..... ,.'. iiH l-t,d J '"''f (--~_,-. :• .. --·,.,, .. -.. ,._"-·"· ( lBi k'-:-r-~·-v--•·-.:-·-~ SOU IN FUT ----. .. "" Haozous Engineering, P.S .. CMI. & SITE ENGINEERING 13428 -45TH. COURT, MUKIUEO, WA 98275 •2.5-70-5872 _..,, ..... RHO 8/18/1)3 ORA•lffl .. ,., S/18/n3 . RHO NICHOLS PLACE PRELIMINARY PLAT DRAINAGE ADJUSTMENT BASIN BREAKDOWN • • Fl 1 Figure 2. Flow Duration Curves for RID-West Basin N ..,. 0 ~- d • " 0 I . I ~ I • 0, • -0 • ~ u .. 0 ,0 N d 9 10. ._ -~ ~ -~ '\ •,,\ ' ~ '\ 0 10·' 10 •l 10 -l Probabl6ty ExceedenCe 10 -1 ;\!-5:1, ~ tarwast dur 6 d9'tWast.dlJr + 10' ~~RG'P:~(1,mi,~Jffl~e~~--c.r .. ,,·i~~o•:,"";;;..:.W t ., ' ~ .. ·~. -=--· . "• ' . ·--~"·'··"' . -•o::, ~ --"' • ' --___ ,. ..... ,,-,-,-.• ,-.. -,--.·,--,~----.it.l_.~>c'.--,,.,~. •"·"-"•",..., ___ .,~ .... ,o_--_ ..... 5 • ~ • •• Existing Peak Flow Rates -West Basin Flow Frequency Analysis Time Series File:exwest.tsf Project Location:Sea-Tac. ---Annual Peak Flow Rates--------Flow Frequency Analysis---~--- Flow Rate Rank Time of Peak (CFS) 0.102 2 2/09/01 18:00 0.036 7 1/05/02 16:00 0.090 3 2/28/03 3:00 0.009 8 3/24/04 19:00 0.051 6 1/05/05 8:00 0.084 4 1/18/06 16:00 0.081 5 11/24/06 4:00 0.165 1 1/09/08 6:00 Computed Peaks Developed Peak Flow Rates -West Basin Flow Frequency Analysis Time .Series File:devwest.tsf Project Location:Sea-Tac -Peaks Rank Return Prob (CFS) Period 0 .165 1 100.00 0.990 0.102 2 25.00 0.960 0.090 3 10.00 0.900 0.084 4 5.00 0.800 0.081 5 3.00 0.667 0.051 6 2.00 0.500 0.036 7 1.30 0.231 0.009 8 1.10 0.091 0.144 50.00 0.980 ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank Return Prob (CFS) (CFS) Period 0.066 6 2/09/01 2:00 0.134 1 100.00 0.990 0.053 8 1/05/02 16:00 0.083 2 25.00 0.960 0.079 3 2/27/03 7:00 0.079 3 10.00 0.900 0.058 7 8/26/04 2:00 0.070 4 5.00 0.800 0. 069 5 10/28/04 16:00 0.069 5 . 3. 00 0.667 0.070 4 1/18/06 16:00 0.066 6 2.00 0.500 0.083 2 10/26/06 0:00 0.058 7 1.30 0.231 0.134 1 1/09/08 6:00 0.053 8 1.10 0.091 Computed Peaks 0.117 50.00 0.980 • < -~ .-.: i.. . 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V . ., . ~ i, ·;·,~· ,..f' \ •• J ,I '(: ~ ; ~\ "=~ \Al . <""""' .... __ _.>j'f ·•,.!, '>·~·!··-'\f _.,.,OFFSITE ~ 'I ,' .,., i : " . TRIBUTARY, i ;: .:' •: f ' ' 'AREA '· ',: ·,,,,. (2.15 AC)': i' ··. 'st} ;ti ~? i 'j· I~ ·.Hq i. !. . ... ,.. . ' :. ,. •· , ... : :i.i .; , ..... ~" '~, ,?'. ; \ I 1 1 ....,...._, /' ·-iii ... ---' ~ ~, ... ~. -:..,./,! ~ ·1 ,, ...... i it . t.,· .,.... ·' ~ ~(\.\.;/. ...... f .,.,.,,' k:S PLAT '"·i(ll·,,,,,.,, ......... __ , '1:,:;r '; ),:, ·,.. ' ' .., • .J ·-· ........ t ' ; "exeast" ~ ' ~, .~ it ...... • .... ~--11 ·~,-' :; -~,.,..._ \ l , . .,.. ..... .,., ,•"'"··-.·""-' , ...... , ,~·--, \"'~-: ..... , ._,: ••• I:! ,--fl i;';; . ... ,....h<. "-r"I I .. • l p-;: __ .... 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' , , '. .,_. _,__ TRIS'"'·= AR ... , ~--,......;;:;-.__<:;:'t) ~· -.. ,, ' • \:' ' :, ,·, 'c _. > V ',(V' I <JS\ ;<:;'.'.i' ~ijj),. c -----, .,,,_ \. . , . f"'·"·" •...• _,,/ · / (LOCAljlON·'5'4 IN \ ·O'' -........_,,, -,~......._, \.._ ~-·-~ !--~~ .,,-;<-~\ / FIG. 5) \ ', .. ~~-. , -......, ,....... I ' .... :·, ........ oo -::::.:-~::---~ ,,./, \. .. r ·' , -"\ I . --.--,~---·-... _ ..... , ~--. ,. __ ........ -'·", /'(_/ •,....... 1' '•, . ':i l " ~.... ·~--..... """ \ • . ' ' ' ,BUTARY AREA . I . ...... . . .'.".''"'" --:::::-··· . 't ., . ~~··· . . .... ' , U (L CATION 36 IN FIG . ··, ·-........ :·•·' · ...• >,,,,.,! . ···· "·,,.,_ ,/! \ ! l 5) ;if ~ ' .. '·• ... ~ l ~ ' ... ~,r.,. '°' .1.o• 1,, ". ··~... "~ .,.. "1 l '\ \, t. ,., , .. ,,'-i;_,,lo ~-' ........ ;:, . . ..... I \ ... \ . .J1\ t ~ f. -· . .r' , ,. t ~ \, ' ,.. . . I';\'. \ .,, "' ··-~" / -' .,, ' ,, • " ,: •• 11 .... )'-' ~ . . • . ., ,. ·-. ~ .,'4 .... .,. If ·f'I"'::""•'""'"', t •".'.:!,)··· "';,;!J i/. . ·. '. t, "--.. ~~j-i;,,~, . , --~_..;-"· ~·-.... .;-;~?.~~~~:~2~~~I~f~_·.:_:;~;;:~:·~~~~-:::t:;;_~::.·::;·;~~:.\~:::'.·.~.~·,?~;} .. ~~: .. :~f:'. .. .':.~:~~:~,,;.~;~.:.:::·:::.~: .. ~~~:',:;~~<~;~~i.:~~~>·,L ... -... ·,-~ \.,~ .. ,~""' Haozous EnJineering, P.S.I NICHOLS CIW. a. STIE ENQNEERIMG PRELIMINARY PLAT 13428 -451H COURT, MU1<Jl'IEO, WA 08275 42&-745-M72 _,,, : 1: I EXISTING 5/10/03 I 3 , ......... 5/15/03 DRAINAGE BASINS _,,,.,.., -------"" -0 • • . <® • Enginee Review Checklist King County Department of Development and Environmental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 206-296-6600 TTY 206-296-7217 Alternative formats available upon request PROJECT INFORMATION 1998 SWDM Project Name: Development Number: * Activity Number: Project Number: Parcel Number: Project Location (approximate cross street): Owner (or rep.): Telephone: Design Engineer: Telephone: Peer: DDES Preliminary Engr: ---------- DDES Planner: Telephone: * Telephone: * Telephone: DDES Review Engr.: ------------ DOES Engr. Tech: Telephone: Telephone: NA DO OK I I I I I I • Blue Engineer Fite Created with Key Documents I I I I I I • Plat Ordinance Number: ........... date: Hearing Examiner's Report ....... date: DOES Staff Report ... . .......................... date: • Preliminary Plat Map .. date: • Revised Prelimiriary Plat Map ........ date: • 5-year Expiration .. .. ...... date: • Project information on Permits Plus ROUTING TO OTHER KING COUNTY SECTIONS NA DO OK I I I I I I • Wetland Report/Plans: Route Date: Response Date: • Geotechnical Report/Plans: Route Date: Response Date: • Grading Report/Plans: Route Date: Response Date: Structural Report/Plan: Route Date: Response Date: • landscape/Park Report/Plan: Route Date: Response Date: • Traffic Report/Plan: Route Date: Response Date: • Other Report/Plan: Route Date: Response Date: GENERAL SUDIVISION REQUIREMENTS NA DO OK I I I I I I Site plans match preliminary approval application map I I I I I I Compliance with conditions of preliminary approval letter I I I I I I Compliance with Mitigated Determination of Non-Significance Check out the DDES Web site at www.metrokc.gov/ddes Engineering Review Checklist le-ckl-ercheck 05/29103 Page 1 of a NA [ I [ I [ I [ I [ I [ I [ I • • Activity Number: GENERAL REQUIREMENTS-SURFACE WATER DESIGN MANUAL DO [ I [ I [ I [ I [ I I I I I OK [ I [ I [ I [ I [ I I I [ I 2.3.1.2 General: Plan Formatting (1) Sheet size 24" X 36"; quality reproducibles (2) King Co. Standard Map Symbols; existing/proposed (Reference 7A) (3) Project Information/Cover Sheet a. • Title; Project name and DOES file number b. • Table of Contents if more than 3 plan sheets c. * Vicinity Map d. • Name & Phone of Utility field contacts and One Call Number: 1-800-424-5555 (water, sewer, gas, power) e. Pre-construction/Inspection notification requirements f. Name and Phone of erosion control supervisor g. Name & Phone of Surveyor h. Name & Phone of Owner/Agent i. * Name & Phone of Applicant j. * Legal description k. * Plan approval block for DOES l. * Name & Phone of engineering firm preparing plans m. * Fire Marshal's approval stamp (if required) n. • Mailbox location approval by U.S. Postal Service o. • list of conditions of preliminary approval on all site improvements (4) • An overall site plan if more than three plan sheets are used a. * The complete property area development b. * Right-of-way information c. • Street names and road classification d. * All project phasing and proposed_ division boundaries e. · * All natural and proposed drainage collection and conveyance systems with catch basin numbers shown (5) Each sheet and TIR is stamped, signed, and dated by a Professional Engineer licensed in Washington State (7) " Title block on each sheet a. * Development title b. " Name, address and phone number of engineering firm c. " Revision block e. * page numbering f. • Sheet title (e.g., road and drainage, grading, etc. (8) • A blank approval block (4" high x 6" wide) on each plan sheet (9) • The location and label for each section or other detail shall be provided (10) * Sensitive Area Setbacks designated as required by the SAO (K.K.C. 21A.24) (11) • All match lines correspond to the sheet referenced (12) • Division phase lines with limits of construction (13) • Wetlands are numbered or marked "uninventoried" (13) • General, Drainage,• Structural notes (Reference 78) 2.3. 1.2 Plan View (1) " Property lines, R/W lines, roadway widths shown (2) " Existing/Proposed road features; CL, edge pavement, edge shoulder, ditches, curb, sidewalk, & access pts (3) * Topographic Contours@ 2', 5' > 15% slope, 10' > 40% slope (4) * All affected utilities are shown; utility poles marked (5) • All roads and adjoining subdivisions identified (6) * Existing/Proposed R/\N dimensioned and shown (7) * Existing/Proposed surfacing shown (8) * Scale 1" = 50' Horizontal (1" = 100' for lots> 1 Acre) • Denotes completion by engineering technician Check out the DDES Web site at www.metrokc.gov/ddes Engineering Review Checklist le-ck1-ercheck 05129103 . Page2of8 • • Activity Number: ROADWAY DESIGN -KING COUNTY ROAD STANDARDS (K.C.R.S.) 1993 K.C.R.S Variance Number: Approval Date: ROAD CLASSIFICATION TABLE Name of Roadwau K.C.R.S. Classification NA DO OK [ I [ l [ I 2.03C Maximum Superelevation (2.05) 2.03E Maximum grade (2.11) 2.03E Maximum grade (2.11) 2.03F Stopping Sight Distance (2.05, 2.12) 2.03F Stopping Sight Distance (2.05, 2.12) 2.03G Entering Sight Distance (2.05, 2.13) 2.03G Entering Sight Distance (2.05, 2.13) 2.03H Minimum pavement width 2.03H Minimum pavement width 2.031 Minimum roadway width 2.031 Minimum roadway width 2.03J Minimum R/W width 2.03J Minimum R/W width 2.03J Min. R/W width (incl. 1 ft behind walk/curb) 2.03L Minimum Half-Street width (2.07) 2.05 Horizontal curves 2.05 Horizontal curves 2.10A Intersection minimum curb radius 2.10A Intersection minimum curb radius 2.10A Intersection minimum R/W corner radius 2.10A Intersection minimum R/W corner radius 2.10C Intersection landing 2.10C Intersection landing 4.01 Proper road sections and surfacing (Dwg. Nos. 1-001 -1-006) 4.01 Proper road sections and surfacing (Dwg. Nos. 1-001 -1-006) 4.01 Proper road sections and surfacing (Dwg. Nos. 1-001 -1-006) * Denotes completion by engineering technician Check out the DDES Web site at www.metrokc.gov/ddes Engineering Review Checklist le-ckl-ercheck 05/29103 Page 3 of a NA [ [ [ -------------------------------, DO J [ J J [ J J [ J • • Activity Number: ROADWAY DESIGN-KING COUNTY ROAD STANDARDS (K.C.R.S.) 1993 Continued OK [ J [ J [ J \ 2.08A 2.088 2.10A 2.108 3.01 2.13 3.02A&8 3.05 4.01F 4.02 4.02 4.03 4.05 5.01 5.02 5.03 5.04 5.05 5.06A 5.08 5.11 7.02A,B,C,D 7.01A 7.04A 7.04E 7.0SA,E 8.03B Minimum Cul-De-Sac diameters Maximum Cul-De-Sac length Angle of intersection between 85 and 95 degrees, minimum centerline radius Intersection minimum spacing Driveways Driveways; ESD Sidewalks and widths Handicapped access ramp (WSDOT F-3) Pavement overlay for widening and channelization Residential street design Poor subgrade evaluation Arterial pavement design Pavement markings, channelization, and tapers Rock facings (Dwg. Nos. 5-004 -5-007) Side, slopes, generally 2H:1V Street trees and landscaping Mail boxes (Dwg. Nos. 5-010-5·012) Illumination plan or notes Survey monuments to be disturbed are shown Bollards for walkways or maintenance roads Roadside ~bstacles Grass·lined, pipe or rock lined, special designed ditch Minimum self.cleaning pipe flow velocities (KCSWDM Section 4.3.4) Maximum spacing between catch basins CBs taller than 5' (grate to invert) are Type ll Vaned grates, locking covers and grates for all CBs (except rolled grates) Open cutting of existing roadways, patch requirements NOTES: * Denotes completion by engineering technician Check out the DDES Web site at www.metrokc:govlddes Engineering Review Checklist le-ckl-ercheck 05/29/03 Page 4 of 8 • • Activity Number: DRAINAGE DESIGN -SURFACE WATER DESIGN MANUAL (1998) SWDM Variance Number: Approval Date: NA DO OK 2.3.1.1. Technical Information Report I I I l I l Project Overview (Section 1) ( I ( I [ l Figure 1: TIR Worksheet I I ( I ( l Figure 2: Site Location I I I I ( l Figure 3: Drainage Basins I I ( I ( l a. Acreage of subbasins I I I I I I b. Identify all site characteristics I I I I I I c. Show existing discharge points to and from the site I I I I I I d. Show routes of existing, construction, and future flows at alt discharge points and downstream hydraulic structures I e. Use a minimum USGS 1 :2400 topographic map as a base I f. Show and cite the length of travel from the farthest upstream end of a proposed storm system in the development to any proposed flow control facility ( Figure 4: Soils I a. Show the project site ( b. the area draining to the site I c. the drainage system downstre.am for the distance of the downstream analysis I I Preliminary Conditions Summary With responses (Section 2) I I Off-Site Analysis (Section 3) I I Flow Control and Water Quality Facility Analysis and Design (Section 4) I l Existing Site Hydrology (Part A) I I Developed Site Hydrology (Part B) I I Performance Standards (Part C) I I Flow Control System (Part D) I l Water Quality System (Part E) ( I Conveyance System Analysis and Design (Section 5) ( I Special Reports and Studies (Section 6) I l Other Permits (Section 7) I I Erosion/Sedimentation Control Design (Section 8) I l Bond Quantities Worksheet and RID Facility Summary (Section 9) I l Maintenance and Operations Manual (Section 10 for privately maintained or special non-standard features) NA DO OK 4.1 Conveyance System Design and Analysis I I I l ( I 4.1 Conveyance systems are in easements with BSBLs I I I I { l Pipes are para,llel to and alongside property lines I I I I I l Easements for pipes outside of right-of-way [ I I I I l Catch basin lids are flush with ground line I I I I ( l Plan & Profile (pipe type, length, elevs., dia., & slope) I l I I I I Minimum cover for pipes (4.3.40-U) I I I I I l Stations and Offsets provided for each CB in roadway ( I I I I I Roof drain stubouts are shown, type of pipe described ( l I l I I Arrows show direction of all surface and system flows * Denotes completion by engineering technician Check out the DDES Web site at www.metrokc.gov/ddes Engineering Review Checklist le-ckl-ercheck 05/29/03 Page5of8 NA I I NOTES: • • Activity Number: DRAINAGE DESIGN -SURFACE WATER DESIGN MANUAL (1998) Continued DO I I OK I I 5.3 Retention/Detention Facility Design RID Facilities are in tracts or dedicated Rtw with setbacks 5.3.1 Detention Ponds Dam Safety Compliance Two cross-sections through pond (one x-section to include control structure) Designed as flow-through system Side slopes interior 3H:1V or fenced Vertical interior retaining walls stamped by licensed structural civil engineer. Min. 25% of perimeter vegetated and no steeper than 3:1 Primary overflow Secondary inlet Emergency Overflow Spillway Soil and compaction requirements described (95% modified proctor) Access road min. turning radius, maximum grade, min. width, fences or gates Minimum berm width of 6 feet Pond sign Fencing and planting requirements 5.3.2. Detention Tanks 6" of dead storage in tank bottom Minimum pipe diameter of 36" Materials and structural stability Access risers and CBs are spaced properly with max. depth from finished grade to tank invert shall be 20 feet and accessible by maintenance vehicles 5.3.3 Detention Vaults Structural package submitted for approval Grate over sump with 2' x 2' hinged access door Access to tank positioned a max. of 50 feet from any location. (if over 3 foot cover use cone riser). Removable 5 x 10 panel if vault greater than 1,250 sq. ft. floor area Maximum depth from finished grade to vault invert to be 20 feet Minimum internal height shall be 7 feet, min. width shall be 4 feet min. Ventilation pipes provided in all four corners 5.3.4 Control Structures Section and plan view shown top scale Orifice size and elevation on plans match calculations 5.4 Infiltration Facilities Appropriate soils logs and testing procedures in TIR 100-yr overflow conveyance Spill Control device Pre-settling Design water surface set back of 20 feet from external tract, easement or property lines • Denotes completion by engineering technician Check out the DDES Web site at www.metrokc.gov/ddes Engineering Review Checklist le-ckf.ercheck 05/29/03 Page 6 of 8 NA I I I I I > I I NOTES: DO • • Activity Number ------------ DRAINAGE DESIGN-SURFACE WATER DESIGN MANUAL (1998) Continued OK 6.1. Water Quality Facility Design 6.1 Water Quality 6.2.2A Water Quality sequencing 6.2.3 Setbacks, slopes and embankments 6.2.4 Liners 6.3. 1 Biofiltration swale 6.3.1 geometry, plantings and access 6.3.4 Filter strips geometry 6.4.1.1 Berms, Baffles, Slopes 6.4.1.1 access and plantings 6.4.1 & 6.4.2 Wetponds and Wetvaults 6.4.1.1 Sizing basic or large 6.4.1.1 Berms, Baffles, Slopes 6.4.1.1 access and plantings 6.4.3 Stormwater Wetlands 6.4.3.2 geometry, liners, access, plantings 6.4.4 Combination Detention and Wetpool facilities 6.4.4.2 geometry, berms, baffles, slopes 6.4.4.2 access and plantings 6.5 Media Filtration Facility Designs 6.5.1 Pre-settling/pretreatment 6.5.2 Sandfilters -Basic and Large 6.5.2.1 Sizing, geometry 6.5.2.1 Overflow/bypass, underdrain, access 6.5.3 Sandfitter Vaults 6.5.3.2 Pretreatment, flow-spreading, energy dissipation 6.5.3 Sizing, geometry 6.5.3 overflow/bypass. underdrains and access * Denotes completion by engineer technician Check out the DDES Web site at www.metrokc.gov/ddes Engineering Review Checklist le-ckl-ercheci< 05/29/03 Page 7 of B NA I I NOTES: DO I I • • Activity Number:------------- TEMPORARY EROSION/SEDIMENTATION CONTROL SURFACE WATER DESIGN MANUAL OK I I Appendix D Erosion/Sedimentation Control Plan NGPE delineation fencing at NGPE boundaries w/detail (0.4.1.1) General (1) Separate plan sheet showing entire site w/features (2) Limits of clearing to be flagged in the field are shown (3) Perimeter control of runoff at property boundaries (0.4.3) (4) Construction entrance with detail (Fig. 0.4.G) (5) Drainage features identified (streams, wetlands, bogs, springs, seeps, swales, ditches, pipes & depressions (6) Construction sequence (D.10.4) (7) Utility corridors other than roadways shown (8) Standard ESC plan notes (D.10.3) (9) Sufficient conceptual details to convey design intent (10) Drainage divides and flow directions shown (11) Specify requirements & best management practices (12) Show cut and fill slopes with catch lines indicated Conveyance (2) Inverts, min. slopes, & cover for temporary pipes (D.4.6.2) (3) Grades, dimensions, & direction of open channel flow (D.4.6.3) (4) Off-site runoff bypasses disturbed areas Soils/Ground Cover Protection (2) Pertinent info. from soils report is added to plans (3) Areas receiving special treatment are specified Gute netting, rock lining, or sod) (D.4.2) (4) Soils cover practices and locations of disturbed areas (D.4.2) Sedimentation facilities (1) Sediment pond/trap w/structures shown (D.4.5.1 &2) (5) Details of sediment pond riser (Fig. 0.4.K) (7) Control/restrictor device location and details (8) Mulch specifications/berm & slope cover recommendations (D.4.2) (9) Rock specifications & detail for rock check dams (Fig. D.4.R) (1 O) Check dam spacing as required for on-site slopes (11) Front and side views of rock check dams shown (Fig. D.4.R) (12) Silt fabric fence locations shown w/detail and specs. (0.4.3.1) * Denotes completion by engineering technician Check out the DDES Web site at www.metrokc.gov/ddes Engineering Review Checklist le-ckl-ercheck 05/29/03 Page 8 ol 8 cORE ~DESIGN • • Core Derlgn. Inc. ENGINEERING · PLANNING . SURVEYING 14711 N.£29thP/aceSuite#IOI Bellevue, Woshinrton 98007 425.885.7877 Fax. 425.885.7963 TRANSIVIITTAL TO K.C.D.D.E.S. DATE June 25, 2004 JOB NO. 04009 900 Oakesdale Avenue SW Renton, WA8055-1219 Joanne Carlson ATTN· ......................................................................................................................... . Nichols Place 1'"0 -.. .!..11:. L..o~f'ooi REF: ............................................................. ..) ....................................................... !fi MAIL TRANSMITTED FOR: ACTION REQUIRED: QUANTITY 3 ................. 3 1 COMMENTS .. CC: YOUR USE PROCESSING DATED ....... P.~.!: . ....-..~+~. ~f?..lf .S~P.~., X ............ DELIVER . ... PICKUP .... X .. PER REQUEST ..... INFORMATION ONLY .. X .... REPLY ..................................... RETURN Engineering Plans T.I.R. DESCRIPTION ............................................................................................... .... NONE .. Check for $494.28 (given to the cashier as requested) ....... ···-·· . .... BY: ® ' King County Department of Development and Environmental Services Land Use Services Division 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 (206) 296-6600 TIY (206) 296-7217 Alternative formats available upon request Drop-Off Cover Sheet for Land Use Services Division *****"'"*****'**"'************** IMPORTANT******""******"'**************"' PROJECT NUMBER AND NAME IS NECESSARY \/ f e;v,,Jf FOR ALL DROP-OFFS . "\ProjectNo.: Lo'f 0 S/c-OJ'{,' f"YJ, LQ:JffJO/J" )( Project Name: ///1 cJw Is ~ 5<' FROM: PJ.N id ~-/rm, ff-I '-IZ>-<liS:-5< Company Name I Contact Per&o9_ • .,--. 7g77 Date Received by LUSD ~~(G~~~f :". JUN 2 5 2004 li)) K.C. D.D.E.S. · Telephone No.: Cof<.e, ~S'jN; Y!_C.. /TO: 9~~ .____ ___ ___, ADDITIONAL IN~ BY KING COUNTY STAFF (please print) Short Plat / Plats Please specify item(s) dropped-off: Lot Line Adjustment Permit Please specify item(s) dropped-off: Right of Way Permit Please specify item(s) dropped-off: Clearing / Grading Permit Additional information requested; please specify item(s) dropped-off: Other:------------------------------------- PLEASE NOTE: All drop-off item(s) will be logged into the computer under the project number, therefore, it is important that the top portion of this form is completed properly before you drop-off anything. Assistance in finding a project number can be provided by speaking to a Land Use Services Division Person of the Day (POD) or the Zoning/Land Use Technician. Your cooperation is important. Thank you. LUSD Drop-Off Cover Sheet lg-cvs-dropoff.pdf 05-30-2002 Page 1 of 1 ! fo:2,~_8,4fiog, ; /-f/Laqat3._· --. -~~: S.~:z L~ 2 :s ,;f_C9,vb_.S:::X,p/ALC ~/&."Zi!!St!/~C£'_,Cbt/a,' cey;e~ao, ce:z:z-,e,tc_~~P~LC/c_Zo_.w~S,.L2 w._;EZ4e._, - " - ' , . ....,. '" '. i ~ ....... ,;:-..... •· -,/ ' · .. --. . '· ·-.i.<""-.... ,.> .. :_; (.:'-~_,/ :.-,, -"': ... ~_ .... ;·.\,::-':-:· .. :,.,~-'-1----------~~'--==----,-, -"'----~~-~-"-'~-"--' ' \ "\,.-\ -:~ \ \ · .. '~ . . '-. ' -,,.~·=. --\ ... -!" • V . . ' ...... --._,_ .. ' . ' I 8 ~ ~ "' N --' !; ~ () N ~ 0 I; 0 r-- 0 w V) () ~i C, 1~ N ~ ~. ~ o" >-' .. i V> ... l < ea , w "' ~ ~ • I j • • ~-a • I~ 'll - " 1~ -~ I i I I ii ~ i ' i ~ s 2 s I ~ a i 0 IQ.I • J. • • ~ i. 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L0.3P0015 .JOB NO. 04037" ( ·:: .. , ..•. ~/; Permit Application Report -DDES, King County, Washington tQ King County Mi Hui· M?i4%4 41444144¥ 13·i,,lui4,IN W1¥iHM Department of,~evelopment an~ l;n;vh;onmental Services • ODES Homepilge A/P/D No Permit Type Urban Rural Online Permit Applications Report 17 Search Results for File No: I03p0015 Reported through: August 13, 2008 Project Title/Description Applied Status Applicant L03P0015 PRE-PLAT URBAN NICHOLS PLACE 05/19/2003 TRANSFER SBI DEVELOPING Page I of I L03'l0.0.3f> SWM-VAR URBAN PLAT OF NICHOLS PLACE L04SR034 SITEREVP URBAN NICHOLS PLACE L03P0015 A05BN208 REST !.&5.Ml042 L-PLAN URBAN $121,000 PERF/REST FG URBAN RECREATION PLAN"L03P0015 05/19/2003 GRANTED US LAND DEVELOPMENT ASSOC. 06/24/2004 COMPLETE NICHOLS, MARK & BARBARA 05/20/2005 RELEASED $121,000 PERF/REST FG 06/02/2005 COMPLETE SBI DEVELOPING L05Sl107 INSPCT-L URBAN NICHOLS PLACE/L03P0015 -STREE 06/03/2005 MONITOR SBI DEVELOPING, LLC L05SJ1Q6 INSPCT-P URBAN NICHOLS PLACE/L03P0015 06/03/2005 COMPLETE SBI DEVELOPING, LLC lJ)5FR042 FINAL-P URBAN NICHOLS PLACE 08/1612005 COMPLETE KURT WILSON LQ5E_C.112 CHGMINOR URBAN NICHOLS PLACE/ PC#1-CHNG CB 2 08/17/2005 COMPLETE SBI DEVELOPING L05$1108 INSPCT-L URBAN NICHOLS PLACE/L03P0015. LANDS 08/18/2005 MONITOR SBI DEVELOPING, LLC URBAN $7,892 LAND MAIN FG LOJ;PCj 3-0 CHGDSIGN URBAN PC#2 NICHOLS PLACE 09/06/2005 REDUCED $7,892 LAND MAIN FG 10/07/2005 COMPLETE SBI DEVELOPING 8~BN422 LAND URBAN $2,800 STREET TREE MAINT A05CI 169 CERTINS URBAN A06BN007 M/D URBAN $65,179 MAIN/DEFECT FG 10128/2005 REDUCED $2,800 STREET TREE MAIN-REDUCE 10/31/2005 EXPIRED CERT OF INS EXPDATE: 9/27/06 01/11/2006 TRANSFER $65,179 MAIN/DEFECT FG .O.Q)'.C1QI3 CERTINS URBAN NICHOLS PLACE A07Cl141 CERTINS URBAN NICHOLS PLACE 07/27/2007 EXPIRED CERT OF INS EXPDATE 09/27/2007 10124/2007 VALID CERT OF INS EXPDATE 09/27/2008 List Date: August 18, 2008 King County DDl;;S. I Nl'lw.Applic::_sition .S.earcl:! I New~ I S_ervices I Comment,a I Search Links to external sites do not constitute endorsements by King County. By visiting this and other King County web pages, you expressly agree to be bound by tenns and conditions of the site. Jhe details. http://apps01.metrokc.gov/www6/ddes/scripts/perm1ist.cfm 08/18/2008 t. Q~J:tJ11ent Qf oevelopi:nen:t l!" >ODES ~:;ige Online Permit Applications Report 17 Search Results for File No 103p0015 Reporled through: August 10, 2008 ll!IRIID!lli!ll!l!II -----Project TitleJOescription L03P001S PRE·PLAT URBAN NICHOLS PLACE L03V0036 SWM·VAA URBAN PLAT OF NICHOLS PLACE L04SROJ.< SITEREVP URBAN NICHOLS PLACE L03P0015 ~REST URBAN S121,000 PERF/REST FG ~ l-H.AN URBAN RECREATION PLAN"l03P0015 --Appllcant 05/19/2003TRANSFER SBI DEVELOPIMG 05/1912003GRANTED US LAND DEVELOPMENT ASSOC. 06/24'2004 COMPLETE NICHOLS, MARK.& BARBAAA 05t20/2005RELEASED $121,000 PERF/RESTFG 0610212005COMPlITT SBI DEVELOP1f1G L05Sl107 INSPCT-L URBAN NICHOLS PLACE.11...03P0015-STREE 06f03/2005MONITOR SBI DEVELOPIMG, LLC ~ INSPCT-P URBAN NICHOLS PLACEl1..03P0015 06!1}3/2005COMPLETESB1 OEVELOP1MG. LlC L05fR042 FIHAL-P URBAfJ NICHOLS PLACE 08/16/2005 COMPLETE KURT WILSON L05PC112 CHGMINORURBAN NICHOLS PLACE/ PC#1-CHNG CB 2 08!17!2005COMPLETE SBI DEVELOPING l05Sl108 INSPCT .t_ URBAN NICHOLS PLACE11.03P0015 -LANDS 08118/20-05 MONITOR S81 DEVELOPING, LLC ~ WJD URBAN S7 ,892 LAND MAIN FG 09/06.12005 REDUCED S7,892 LAND MAIN FG l05PC130 CHGDSIGfl URBAN PC#2 M\CHOLS PLACE 10/0712005 COMPLITT SBI DEVELOPING ~LAND URBAN S2,800 STREET TREE MAJNT 10/28/2005 REDUCED S2,800 STREET TREE MAlll-R.EDUCE ~ CERTINS URBAN 10/31/2005.EXPlRED CERT OF IMS EX.PD.ATE: 9127/06 A068H007 MID URBAN S55, 179 MAIH/OEFECT FG 0111112006 TRA.tlSfER S65, 179 MAJN/OEFECT fG liil1Qfil CERTINS URBAN NICHOLS PLACE 07/2712007EXP!RED CERT OF !NS EXPOATE 09127/2007 A07a141 CERTINS URBANNJCHOLSPLACE 1012.v2007 VALID CERT OF iNS EXFDATE 09i27/2008 Ust Date: August 12, 2008 King County DDES I New Appfication Search I News I Services I Comments I Search Li~ 1; e:<W!'lil m"5 ~ nc: COf'.s'jW'~ anOCfH.,,~r.:s by Yjf11 Coc.-n~,. 9f Y<ii~"ll tr.ii tM &.¥ l'Jn; ~O:.>ntJ l\'fl) t&;el )CU cec-.pN!nly ~;tH 1: ~ ilol.nd by l£fm5 and oo:,,:i11icrs of i~e: 1i1,; Tha ?Jlllib