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Home My WebLink AboutReport 11 505 NW MALL STREET, tSSAQUAH, WA 98027 PH: (425) 837·8083 Fx: (425) 837-0583 CONTACTUS@GED DATUM. COM King County, Washington Technical Information Report For: Malhi 7-Lot Short Plat American Asian Construction, LLC. 9501 South 2oih Place Kent, WA 98031 KC# L06S0006 GeoDatum Project No. 2005-294 _ex_P_1e_cs_· __.5"'--1/· 7/()q Cheryl Lee Girard, PE MALHI 7·LOT SHORT PLAT · TIR 10/28/2008 u. " C a Revisions: · Date Descnpt1on 5-2-2008 KCDDES Review Comments #1 7-31-2008 Revised Calculations 9-24-08 KCDDES Review Comments #3 10-28-08 KCDDES Review Comments #4 PAGE 1 OF 28 tJGeo~atum Table of Contents Section 1 -Project Overview Section 2 -Conditions and Requirements Summary Section 3 -Off-site Analysis Section 4 -Flow Control and Water Quality Facility Analysis and Design Section 5 -Conveyance System Analysis and Design Section 6 -Special Reports and Studies Section 7 -Other Permits Section 8 -CSWPPP, TESC Analysis and Design Section 9 -Bond Quantities, Facility Summaries, and Declaration of Covenant Section 10-Operations and Maintenance Manual Figure 1 Figure 2 Figure 3 Figure4 Figure 5 TIR Worksheet Vicinity Map NRCS Soils Information PreDeveloped Site Conditions Developed Site Conditions Appendix A -Bond Quantity Worksheet, Facility Summary and Declaration of Covenant Appendix B -Construction Storm Water Pollution Prevention Plan MALHI 7·LOT SHORT FIL.AT · TIR 1 D/28/2008 PAC3E 2 OF 28 FIGURE 1 -TECHNICAL INFORMATION REPORT (TIR) WORKSHEET , PROJECT 0\\ NLR \Nil L\RI I PROJJ:(T ENCl:\J:Ul Project Owner: Harry Bapla, American Asian Construction Address 9501 South 207° Place, Kent, WA 98031 Phone 425-837-8083 Project Engineer: Cheryl Girard, PE I' \RI J I\ PL OF PJ:ll\11 r \l'l'I IC\ 110:\ r Subdivision 1-1 Short Plat 1-1 Grading r CommerciaJ 1-1 Other I' \JU 2 PRO.JI CT LOC.\'110:\ \l'ill nESCRIPl'IO:\ Project Name: Malhi Short Plat Location: 19406 I 16th Ave. SE, Renton Township: 23N Range: 05E Section: NE \', 32 I' \RI -l O I lll'R lff\ II\\ S \:\ll l'I R\111 S r DFW HPA I Shoreline Management 1 COE 404 l Rockery 1 DOE Dam Safety 1-1 Structural Vaults 1 FEMA Floodplain r Other ! COE Wetlands l'\RI ~ SIii C0\1'1l'\II\ \'\IJl)l{\l:\\(;I ll\SI'\ Communitv Soos Creek Drainaee Basin Green River/Soos Creek I' \ll I <, S 11 I ( II \ R \ ( I I RI S I I ( S I River r Stream r Critical Stream Reach J Depressions/Swales r Lake r Steep Slopes I' \IU 7 SOILS Soil Type Alderwoods (AgB) ! Additional Sheets Attached MALHI 7-LCJT SHORT FLAT TIR 10/28/2008 Slopes 0-6% r Floodplain ------------------------------------------------------------- 1 Wetlands Category II buffer r Seeps/Springs 1 High Groundwater Table 1 Groundwater Recharge r Other Erosion Potential Moderate Erosive Velocities 3 FPS PAGE 3 OF 28 , pGeoDatum'" , .. , '-F ,. '' , "I ' , ' FIGURE 1 • TECHNICAL INFORMATION REPORT (TIR) WORKSHEET l'.\RT 8 DE\ LLOl'I\IE:\ I 1.1\111 A 110:\S REFERENCE LIMITATION/SITE CONSTRAINT r, . -Downstream Analvs,s 1 Additional Sheets Attached P \HI 9 LS( IU.Ql IRI ~II :\IS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION r Sedimentation Facilities W Stabilized Construction Entrance W Perimeter Runoff Control r Clearing & Grading Restrictions ~ Cover Practices P' Construction Sequence r Other l'\RI JO Sl IH.\( I 1 Grass Lined Channel W Pipe System r Op en Channel r Dry Pond 1 Wet Pond \\ \I I RS\ SI L\I r Tank W Vault r Energy Dissipater r Wetland r Stream MINIMUM ESC REQUIREMENTS AFTER CONSTRUCTION W Stabilize Exposed Surface ~ Remove and Restore Temporary ESC Facilities W Clean and Remove All Silt & Debris r Ensure Operation of Permanent Facilities r Flag Limits of SAO and Open Space Preservation Areas r Other r lnfihration r Depression Method of Analysis: 1 Flow Dispersal KCRTS r Waiver r Regional Detention Brief Description of System Operation: Surface flow will be collected in a series of catch basins and pipe then conveyed to an underground combination detention and water quality vault Facility Related Site Limitations Reference I Facility I I'\]{ I 11 SI Hl ( I l H \I \:\ \L\ SIS W Cast in Place Vault 1 Retaining Wall I Rockery > 4' High r Structural on Steep Slope I Retaining Wall I Limitation I l'\Hll2 1\SI\IL:\ISIH\CIS I Drainage Easement I Access Easement I Native Growth Protection Easement W Tract 1 Other Part 1J SI<.'\\ I l l{I 01 l'ROI LSSIO:\ \I 1 :\Cl:\ 1 I H I or a civ · engineer under my supervision have visited the site. Actual site conditions as observed were incorporated into this works t the attach ents. To the best of my knowledge the infonnation provided here is accurate. MALHI 7-LOT SHORT PLAT ' TIR 10/28/2006 PAGE 4 OF 28 tJGeoDatum., Section 1 -Project Overview The proposed Malhi Short Plat consists of approximately 47,969 square feet (1.1 acres) of land located at 18311-1161h Avenue SE. This proposed project consists of subdividing an existing single family parcel (Tax Parcel# 322305-9014) into 7 lots total through the King County Short Subdivision Process. The existing parcel is zoned R-8-SO. The project site is located in the NE Quarter of Section 32, Township 23 N. Range 5 E, WM, King County, Washington and is shown on the vicinity map below. @) SE t76Ul SI "' ~ ~ .li ,u " ~ <. £ ~ C " ~ < g w ~ t $1: "f.W.SI ~ t "'' " i £ SE 181Jtl $£' •,&6th P! "' m " ~ 1 .. ; S-E 179t~ S: !3. $E: 1&~h ?I < "' , -5 ! ~ SE 182ru:!_ ~ )> r ·~ " m w 00 ! t §:f1R81t,~ Si lft,t c:i' SE Pet/CIYitli*Y Rd Sf 1at!,lh P', ·1 ... ~ ... ·· . . • ,'.· l".B<l. ·.•· ; ! . :·_ , _;, SE 192ndst. tj' -. . l • " FIGURE 2 -VICINITY MAP The existing rectangular shaped lot consists of a residential home, detached garage and gravel driveway providing access to 1161• Ave. SE. The site gently slopes (10 percent max.) from west to east to a roadside ditch system along the west side of1161h Ave. SE. The existing lot currently consists mainly of overgrown grass lawns and small orchard located in the rear yard. MALHI 7·LOT SHORT PLAT TIR 1 D/28/2008 PAGE 5 OF 28 tJGeoDatum ·· The soils on the site are mapped per King County Soils Survey as Alderwood soils (AgB), see soils map below. Alderwood soil is classified as moderately well drained gravelly sandy loam, SGS Hydrologic Soil Group C and for the purpose of KCRTS modeling, Till. I ; :1 : 1 : •; • . . . . . \ l • •• I• • • • • • . ,; : : • I Alderi.ood avcll' sand lom,, 0 to 6 ercent ~ AgB) ,••Thi• so I ,s nearly evel and widulatini:, It is similar to Aldel'WOod Fa,·el ly ~andy lolllll, 6;1,0 IS percen: !lopes, b~t in places tts surface li;ver is 2 to , inches th1dcr. AreM arc i rrcgular ·rn shape and range froc, 10 ncres to slight!)' 11orc than 600 atrl'S in size. Some areas are as 111Uch as 15 percent included Non,a, Bellinghmt, Tukwila, and Shalcar soils, all of which are p<.>orly drained; and some areas i.n the vicinity of l:nurnc law are a• cue~. •• 10 pc•n:cnt Buckley soi Is. Runoff is slO\i, and the erosion hazard is slight. n,;, Aldcr-ootl soil b used for timber, pasture, l>rrric,, and row crops, and for urhan dcvclopnent, Cop:ibi ! i ty unit !Ve-2; ,,o<>dland iroup 3d2. FIGURE 3 -NRCS SOIL INFORMATION MALHI 7-LO"T SHORT PLAT -TIR 10/28/2008 PAGE 6 OF ze t;;a GeoDatum .. Section 2 -Conditions and Requirements Summary The following summary describes how this project will meet the eight "Core Requirements" and the "Special Requirements" that apply: Core Requirements 1. Discharge at the natural location: This site currently drains to an existing road side ditch located along 116'h Avenue SE. The drainage system for this project will discharge to the existing location. 2. Off-site Analysis: A Level 1 off-site analysis was completed for this project and is included in this submittal. 3. Flow control: The proposed detention/wet vault is sized to meet Conservation Flow Control requirements per the 2005 KCSWDM using the KCRTS program. This requires level 2 flow control with pre-developed conditions for the site modeled as till forest, the historic land cover. 4. Conveyance system: Flows will be conveyed using catch basins and tight line culverts. 5. Erosion and sedimentation control: TESC measures are shown on the engineering plans submitted with this TIR. 6. Maintenance and Operations: Maintenance and Operations procedures are included in Section 10 of this TIR. 7. Financial guarantees and liability: The applicant or the Contractor will provide bonds for performance and maintenance based upon the information included on the Bond Quantity Worksheet provided in Section 9 of this TIR. 8. Water Quality: The new impervious surface area subject to vehicular traffic is greater than 5,000 square feet for this project. As a result, water quality treatment is required. Water quality is to be provided with a detention/wet vault and sized according to Basic Water Quality Treatment requirements per the 2005 KCSWDM. Special Requirements 1. Other adopted area-specific requirements: Conservation Flow Control has been provided. 2. Floodplain/Floodway delineation: Not applicable. 3. Flood protection facilities: Not applicable. 4. Source controls: Not applicable. 5. Oil Control: Not applicable. Section 3 -Off-site Analysis This Level 1 Downstream Analysis is submitted as required by Core Requirement #2, Section 1.2.2, of the 2005 KCSWDM. Core Requirement #2 requires a qualitative analysis of upstream and downstream drainage conditions with an initial project submittal. Task 1: Study Area Definition and Maps: See the following page for a map of and Section-1 Project Overview of this report for a detailed Study Area Definition. In addition, the project site as mapped by KCSWDM appears to be split into 2 drainage basins Panther Lake to the west and Lake Youngs to the east. Field investigation verified that the Malhi Short Plat outfalls to the Lake Youngs Drainage Basin. MALHI 7-L01" SHORT PLAT · TIR 10/28/2008 PAGE 7 OF 28 OROtiO,Dtl 4 l.\)HDl 1 ~ II' "' e,2oeo f lf"oe23a3 Panther Lal<@ Drainage Ba•ln 0 MALHI 7-LOT 8HOFi1T PLAT TIR 10/28/2008 Ma lhl Short Pl at t,o-~~-L075R043 fKl<ting ••d Pro"°""d Downstro,am Outfall /ti .: f ~ Lake Young• Dr•lnace Basin SE.1!)1STST = B•pla 5hurt Plat L07SR04l histirt1 and Propo.sed Dnwr11nream OutfarJ t,\)92516 SC 1&4THSi ti r/ u !" ND.S.1___ Iii It ~ PAGE 8 OF 28 t;iGeoDatum Task 2: Resource Review: A sensitive areas review shows no critical areas on or near the project site. The following is a Drainage Complaints and Sensitive Areas map for a Y. of a mile surrounding this property. MALHI ?~LDT SHORT PLAT · TIR l 0/28/2008 PAGE 9 0~ 28 ftJGeoDatum. Although there have been many drainage complaints, only one was due to conveyance problems. This complaint was made 10 years ago. See the drainage complaint table below. KING COUNTY WATER and LAND DIVISION-Drainage Services Section Complaint Search Printed: 011061200s J:57:0J PM Compliant Number 1984-0298 1994-0144 1995-0200 1996-2071 1996-2071 2001-0322 2001-0322 2001-0389 2001-0389 2001-0389 2002-034 2002-0381 2005-0440 2005-0468 2005-0491 2006-0173 2006-0173 C C C C R Type Code WQC WQC WQE WQR C C WQC WQC C WQC WQR Type of Problem FILL DRNG DITCH ?S FLDG FLDG WQO WQO WQI WQI WQI DDM DOM WQDR WQI DCA WQDR WQDR Address of Problem 18504 1121H A VE SE 17925 116TH AVE SE 18204 116TH AVE SE 11828 SE 180TH ST 11828 SE 180TH ST 11631 SE 184TH ST 11631 SE 184TH ST SE 180TH & 118TH AVE SE SE 180TH& ll8TH AVE SE SE 180TH & 118TH AVE SE 18524 114TH AVE SE 11825 SE 184TH ST 11447 SE 180TH PL 11700 SE 184TH ST 17830 ll6TH A VE SE 11447 SE 180TH PL 11447 SE 180TH PL Comments ILLEGAL NEAR: 17409 126TH AVE POSS FILLING VIOUACT PLAT MORNINGG LACK OF CONVEYANCE ON PVT PROPE INADEQUATE CONVEYANCE OF OFFSITEFLO INADEQUATE CONVEYANCE OFFSITE FLO APP ARENT GREY WATER DISCHARGE INT APPARENT GREY WATER DISCHARGE INT POTENTIAL GRAY WATER DISCHARGE C POTENTIAL GRAY WATER DISCHARGE C POTENTIAL GRAY WATERDISCHARGEC SHEETFLOW ONTO PROPERTY FROM UP SOGGY AREA IN YARD MAY BE THE RES DUMPING FROM RV FILLING/RE-GRADING ON NEIGHBOR'S PROPERTY. INV DI RV LEA YING TRAIL OF SEWAGE RV LEA YING TRAIL OF SEWAGE Tbros Page 686EI 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El MALHI 7·LDT 8HOR"T PLAT TIR 1 D/2B/20DB PAGE 1 0 OF" 28 Geo Datum .. Task 3: Field Inspection : A fie ld observation of the si te and Y. mile downstream con ditio ns wa s performed on August 8, 2005 (sunny an d approximately 75 degrees) and again verified on March 7, 2008 (Overcast , some ra in and 45 degrees). Field observa ti ons are n oted under Task 4. Task 4: Drainage System Description and Problem Descriptions : Upstream : The si te is located at a regional high point , therefore there is no upstream tributary area to the project site. Do wnstream : Th e downstr eam drainage sys tem is s hown in the photos and descriptions on th e following page s: Photo Photo 1 MALH I 7-LOT SHORT PLAT TIR 10/28/2008 Runoff from project site flows from west to east to the roadside ditch along the west side of 1161h Ave . SE .. From east side of 1161 h Ave SE looking west at site . PAGE l 1 OF 28 2 3 MALHI 7 -LDT SHOAT P LAT -T IR 1 0 /28/2008 Runoff from site is collected by the roadside ditch and conveyed north via 12" co ncrete culvert. From project site looking north at roadside ditch along 1161h Ave . SE . On -si te Runoff continues north under SE 182nd St via a 12" pipe and catch basin system before discharging back into the roadside ditch on the west side of 1161h Ave . SE . Along 1161h Ave SE looking north . 300-feet downstream PAGE 1 2 OF" 28 4 5 MALHI ?·LOT S HO R T P LAT TIR 1 0 /2B/200B Runoff con t in ues north through a series of 12" dia . dri veway culverts crossing unde r SE and 1801 h Pl. and --....-=,..;~ SE 172 Pl. Along 1161 h Ave SE looking north . 300-1 ,460 feet downstream Runoff continues north through another series of 12" dia . driveway culverts and open ditch towards SE Petrovitsky Rd ... Along 1161h Ave SE looking north . 1,460-2,330 feet downstream PAG E I 3 OF 28 6 7 Ge oDatum \"IL( 1 Runoff from both the east side and west side of 116th Ave SE is collected in a n 18" CM P pipe system . Along 1161 h Ave SE looking north . 2 ,300-feet downstream The 18" pipe discharges to the closed conveyance system located in SE Petrovitsky Rd and is conveyed east. Along SE Petrovitsky Rd looking east. 2 ,330-feet downstream The drainage path as described above appears to have adequate capacity and no obvious problems were observed. MALHI 7 -L OT S HOR T P LAT TIR 1 0 /28/2008 P A GE 1 4 O F 2 8 t . .l GeoDatum Task 5 -Mitigation of Existing or Potential Problems: A combination Conservation Flow (Level 2) Detention and Basic Water Quality vault has been designed to mitigate potential downstream problems. The detention/wet vault was designed using till forest as the pre-developed conditions per King County requirements. Section 4 -Flow Control and Water Quality Facility Analysis and Design Flow control Analysis and Design The drainage on the existing site was analyzed for this project with KCRTS software. Figures provided in the 2005 KCSWDM and KCRTS manual were used to determine project location and parameters. A portion of the site and required frontage improvements located near the northeast corner of the subject site are not able to be collected and treated in the proposed detention and water quality facility. As mitigation for the uncollectable area, this project will collect an equal area from offsite paved surfaces within 1161h Avenue SE and provide flow control and water quality treatment. A positive aspect of this proposal is that the uncollectable are from project site and required frontage improvements contains some landscape area which is not considered P.G.LS. The proposed offsite trade area to be collected and treated is entirely P.G.LS. Existing Site Conditions (See Figure 4) Historic Land Cover = Till forest Total Site Area (including frontage): 51,380 SF = 1.18 Acres of Till forest CREATE a new Time Series 1.18 0.00 0.000000 Till Forest 0.00 0.00 0.000000 Till Pasture 0.00 0.00 0.000000 Till Grass 0.00 0.00 0.000000 Outwash Forest 0.00 0.00 0.000000 Outwash Pasture 0.00 0.00 0.000000 Outwash Grass 0.00 0.00 0.000000 Wetland 0.00 0.00 0.000000 Impervious predev.tsf Flow Frequency Analysis (1 hour time steps) Time Series File:predev.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of (CFS) 0.074 2 2/09/01 0.020 7 1/06/02 0.055 4 2/28/03 0.002 8 3/24/04 0.033 6 1/05/05 0.057 3 1/18/06 MALHI 7-LO'T SHORT PLAT TIR 10/28/2008 Peak - 18:00 3:00 3:00 20:00 8:00 20:00 Peaks Rank Return Prob (CFS) Period 0.095 1 100.00 0.990 0.074 2 25.00 0.960 0.057 3 10.00 0.900 0.055 4 5.00 0.800 0.048 5 3.00 0.667 0.033 6 2.00 0.500 PAGE 1 5 or-28 '0 :I ., ' I ' !I • j N ' GRAPHIC SClli 0 ,0 " .. IMCN•20rT NW 1/4 SEC. 4 ,TWP. 22N ,RGE. 5E ,W.M. MALHI SHORT PLAT PREDEV BASIN= 1.18 ACRES FORESTED TILL I I I I '1 :! --I' 12'" .. I[ 4n.O!!,--M '1 1 I ---I ---~ '-----.l ~"-. ·, / --·-•, , ' --' \ ~ ~-~ I"-* ·--~,---i --~ ! :1 * ; 1; r,,,.-:;-r-'=·-n\\ /' /;\,,cc ~." :..cg,:, \~:-~ '~F" -- ! -~-f : ' ' ( "-.;/' \ ,.;-~~---~ \ . \ '\ ~ '-,,,, "'~ I"- \1:i·~ . I"- "' / :\ \ ,-• "' \ __ ..,_. " ·-·-,\ -',, ',;:. * ii Xi I"-: "· t ' ! ! ! ~ ! I"- ' ' I I I }t.. ,"' ' \ \ \ ' ' \.,! ' ' \ ' ' \ t \ ' I I I 1 I _, ) •1 ~A \.} -~~ rf [I ' . i: ....... ,,·; ' t'~'°~'-' . ; · · : I i / I ------l~ ' ' , I\ \ I \ __ \ I ,.., ; • ~!.' 1r I l· ' I: ,· j • .... /;;'1\ ,, I Ii I· I r I u ' lsnr @~ ) ......... ,. -·-r-!"C!Nln' MAP '11 ." '. --(_,-,I, :t' ,p I I I I I I I I I I . -, EXISTING STORM WATER OUTFALL s !' ! E :, ... "' O, o· a, C, i:~ ,5:;~,., ';ij:~ ~~, 3:£::;:; z :gc,; ~ ""' ~~i -+---1 I! I "' I-i'5 I= < i5 ..J 8 0. I-... I!! Ill'. "' ill 0 II: :i:: G fl ~ Ii: 2; :i ~ < "' :I fl II: 11. ASl,l,N AWCRICJ.N toMSl!IUC'!ION INC. 9501 S. 207TH PL KU.T, W~ 98QJ1 2~:..!?1'-06JJ DRAF"lER: AMS DESIGNER: AMS PROJ. ENGR./SUR\/ M)(P DATE: 7-~06 PRO.l:CT NO.: 05294 Sl£ET 1 OF fl ,1 II j N ' GRAPtlC SCALE 10 i 10 :ZO " INCMo,:ZO rT. NW 1/4 SEC. 4 ,TWP. 22N ,RGE. 5E ,W.M. MALHI SHORT PLAT I I I DEV BASIN~ TOTAL AREA 1.18 ACRES TILL GRAS~ = 0.43 ACRES IMPERVIOUl5 = 0.75 ACRES 927 S.F ,----~-~------ ): I 11 LOT? <>I I"' l.212 Y. ; / i / r 1 ~-----§~ _____ J LOT 5 4,715 S.F. I I I I I i ••••• J .:'---;,·· ',,, ··. '•,,,, __ _ SE.~JCT. ~,+d_ -lf"\---:or-\ _ _ _ _ _ _ _ _ ! ;;;,71~· I ~·-1 -Ci NS .... /JI l'IMWDlt l'llltllWla ..-S MQaD RIii NS PIIOJBll, LOT IS 9WJ. <DIS'IJIUC'I' A arr UING aAS1C __. WIDIOt 1'111 flllUIIE C .. 2.4.11 IJI «CIW #'PDIIIK C. IIOOf1QP .. .....,., tLIFACD 9IAL,I. • CUb:8 Ne IIIEel!ll 10 ~ 'l'IDIOL (MIIIUM RICIII ~ 1MJIOI ttlML E CCIIIIND:WD 10 9> CQJ.IC'ICII MID WA'IIIDIT ffl1EIIL " ..,. ~ 0 "''~~., tSITE ®r ,< ~ i I .,_,,. .. ,, ."-·'' "'"""'" YJCINITY MAP n --; 11 1rSDE4U.Dlf I NTS I . '··11 ! .!! t E ! ::::s ... cu C = ~ o· cu " i~ "!ii :;i ~i~ ;::..:::;; ~~ ~ii !rd/ II :>;\II : / I L/ I /'\ I nm~ ' ------- ~~~1 I ' ' ',II' I x' J \:./' : ,,_,"~,n;1 I . PR:-:0 ciil~~ ~:---\ 1'1. \ I \ •. 1, I Lr' I . r~I f l f:11 ,// ',,, ;.- ._4> \ / / \;--1 I I I I I I I I T I I I • I \ ___ . I UNCOLLECTABLE AREA = 1,950SF (0.048AC} I ., I-~ :5 F Q. i5 I-"' ~ AREA OF TRADE FOR I is II! ~ NCOLLECT ABLE DETENTION AND :I: ij 115 WATER QUALITY= 1,950SF (0.048AC} ; c: ~ :;i ~ :I! I!! I ~ A.911< AlilERfCol.N CONS11'tUCllON !NC. 9501 S. 207T'n PL KENT, w,-, 980J1 206 .. 478.0SJ~ DRAFTER: AMS DESIGNER: AMS PROJ. ENGR/SURV WXP DA.TE: 7-~08 PRO.ECT NO.: 05294 SHEET 1 OF 0.048 5 11/24/06 4:00 0.095 1 1/09/08 9:00 Computed Peaks Developed Site Conditions: 0.020 0.002 0.088 7 8 J,.;,G.eoDatum.·· 1. 3 0 1.10 50.00 0.231 0. 091 0.980 The developed site drainage system will route runoff to a Level 2 detention/wet vault that will release runoff to an existing ditch located within the 1161h Avenue SE right-of-way. This is the existing natural discharge location. Developed -Detained with Basic Dispersion Impervious Area: Pervious Area: Basic Dispersion: CREATE a new Time 0.00 0.00 0.46 0.00 0.00 0.00 0.00 0.72 devbmp.tsf Lots = 7; average lot size = 4,106 SF Lot impervious area= 4,106 x 75% (max. lot coverage) x 7 = 21,560 SF= 0.49 AC Access road & sidewalk & offsite trade = 11,506 SF = 0.264 AC Total Impervious= 0.75 AC (Landscape, Lawn): 18,731 SF~-43 Acres (Use Till Grass) 42 LF of dispersion trench on ot 5 10 LF of trench treats 700 SF of ISA) 42 LF x (700 SF/ 10 LF) = 2,9 (0.07 Acres) of ISA treated Per KCSWDM Table 5.2.2.A ISA treated by basic dispersion should be modeled as 50% ISA and 50% grass. Series 0.00 0.000000 Till Forest 0.00 0.000000 Till Pasture 0.00 0.000000 Till Grass 0.00 0.000000 Outwash Forest 0.00 0.000000 Outwash Pasture 0.00 0.000000 Outwash Grass 0.00 0.000000 Wetland 0.00 0.000000 Impervious Flow Frequency Analysis Time Series File:devbmp.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- Flow Rate Rank Time of (CFS) 0.216 6 2/09/01 0.175 8 1/05/02 0.260 3 2/27/03 0.188 7 8/26/04 0.227 5 10/28/04 0.229 4 1/18/06 0.273 2 10/26/06 0.438 1 1/09/08 Computed Peaks MALHI 7-LCT SHORT PLAT TIR 10/26/2008 Peak 2:00 16:00 7:00 2:00 16:00 16:00 0:00 6:00 -----Flow Frequency Analysis------- --Peaks Rank Return Prob (CFS) Period 0.438 1 100.00 0.990 0.273 2 25.00 0.960 0.260 3 10.00 0.900 0.229 4 5.00 0.800 0.227 5 3.00 0.667 0.216 6 2.00 0.500 0.188 7 1. 30 0.231 0.175 8 1.10 0.091 0.383 50.00 0.980 PAGE 1 6 OF 28 Retention/Detention Facility Type of Facility: Facility Length: Facility Width: Facility Area: Effective Storage Depth: Stage O Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: Orifice# 1 2 Height (ft) 0.00 1. 65 Detention Vault 166.00 ft 35.00 ft 5810. 2.50 493.60 14525. 2.50 sq. ft ft ft cu. ft ft 12.00 inches 2 Diameter (in) 0.68 1.40 Full Head Discharge (CFS) 0.028 0.097 Top Notch Weir: None Outflow Rating Curve: None Pipe Diameter (in) 4.0 Stage (ft) 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.16 0.26 0.36 0.46 0.56 0.66 0.76 0.86 0.96 1. 06 1.16 1.26 1. 36 1.46 1. 56 1. 65 1. 66 1.68 1. 69 1. 71 1. 72 1. 74 1. 75 1. 77 1. 87 Elevation (ft) 493.60 493.61 493. 62 493.63 493.64 493.65 493.66 493.76 493.86 493. 96 494.06 494.16 494.26 494.36 494.46 494. 56 494.66 494.76 494. 86 494. 96 495.06 495.16 495.25 495.26 495.28 495.29 495. 31 495. 32 495.34 495. 35 495. 37 495.47 (cu. Storage ft) (ac-ft) Discharge (cfs) 0.000 0.001 0.002 0.002 0.003 0.003 0.003 0.005 0.006 0.007 0.008 0.009 0.010 Percolation (cfs) MALHI 7-LD1" SHORT PLAT · TIR 10/28/2008 0. 0.000 58. 0.001 116. 0.003 174. 0.004 232. 291. 349. 930. 1511. 2092. 2673. 3254. 3835. 4416. 4997. 5578. 6159. 6740. 7321. 7902. 8483. 9064. 9587. 9645. 9761. 9819. 9935. 9993. 10109. 10168. 10284. 10865. 0.005 0.007 0.008 0.021 0.035 0.048 0.061 0 .075 0.088 0.101 0 .115 0 .128 0 .141 0.155 0.168 0.181 0.195 0.208 0.220 0.221 0.224 0.225 0.228 0.229 0.232 0.233 0.236 0. 249 0. 011 0.012 0.012 0. 013 0. 013 0.014 0.015 0.015 0.016 0.016 0.017 0.018 0.020 0.023 0.027 0.031 0.034 0.035 0.042 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PAGE 17 OF 28 1. 97 2.07 2.17 2.27 2.37 2. 47 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.20 3.30 3 .40 3.50 3.60 3.70 3.80 3.90 4.00 4.10 4.20 4.30 4.40 4.50 495.57 495.67 495.77 495.87 495.97 4 96. 07 496 .10 496.20 496. 30 496. 40 496.50 496.60 496.70 496.80 496.90 497.00 497. 10 497.20 497.30 497.40 497.50 497.60 497.70 497.80 497. 90 498.00 498.10 11446. 12027. 12608. 13189. 13770. 14351. 14525. 15106. 15687. 16268. 16849. 17430. 18011. 18592. 19173. 19754. 20335. 20916. 21497. 22078. 22659. 23240. 23821. 24402. 24983. 25564. 26145. 0.263 0.276 0.289 0.303 0.316 0.329 0.333 0.347 0.360 0.373 0.387 0.400 0 .413 0. 427 0. 440 0.453 0.467 0.480 0.494 0.507 0.520 0.534 0.547 0.560 0.574 0.587 0.600 0.048 0.052 0.057 0.061 0.064 0.068 0.069 0.380 0. 946 1. 680 2.470 2.760 3.020 3.250 3.470 3.680 3.880 4.060 4.240 4.410 4.580 4.740 4.890 5.040 5.190 5.330 5.460 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 a G~_oDatum '" Hyd 1 2 Inflow 0.44 0.22 0.26 Outflow Target Cale ******* 0.26 0.07 0.07 Peak Stage 2.56 Elev 496.16 2.49 496.09 2.18 495.78 Storage (Cu-Ft) (Ac-Ft) 14890. 14478. 12664. 12435. 10225. 0.342 0.332 0.291 0.285 0.235 0.211 0.199 0.127 3 4 5 6 7 8 ******* 0.06 0.27 ******* 0.23 ******* 0.23 ******* 0.17 ******* 0.19 ******* 0.06 0.03 0.02 0.02 0.01 2.14 1. 76 1.58 1.49 0.95 495.74 495.36 495.18 495.09 494.55 9204. 8649. 5548. • This list of inflow hydrographs is listed in order of the peak calculated vault outflow. This does not match the order shown in the devbmp peaks analysis. However, each devbmp peak inflow event is listed here. The new calculated 25 year peak flow (hyd 2) is less than or equal to the original pre-developed 25 year peak flow (0.07). The new 2 year peak flow (hyd 6) is less than or equal to the original 2 year peak flow (0.03). Therefore the conservation flow control standard is achieved. • The following hydrographs display the developed storm event entering the vault and the corresponding vault outflow. Cumulative storm events over a short period of time have an additive effect on the vault outflow. MALHI 7-LOT SHORT PLAT TIR 10/28/2008 PA.GE 1 8 0~ 28 :1-·~ I :J--------- I I _J. L _:',._ -!: I "' 3l~rt ('\~[S (l"l/02/0~ C'.l IJJ Er~ [,,-,ts ~1/16iDf '.'SC~ L_~~~~~~~~~~--=~"°""'------------------------------------------lUndetained Developed lOOYR Peak ;., • ! >t11 1 t > ' --'< ~+------------- . "'lt----- 0 t ~+----- ,fl' ~-,v,,: t:' start Dal~ 10/19/D6 00 00 End Dal(, t1ro2/06 2'3 00 i "+-------------~------------l I /U ~1, (l 1~. 'J ' - ~ .. g 0 " "' ''° we "" "'" ~~~~~~~~~~~~~~~~~~~~~~~~undetained Developed 25YR Peak ;;; , , •rl r, ,, s " -,.. )( fJi ~ f----------------------- •+-------0 £ o+---------- e t,--.·- Sl8rt Deta.02120/00 00 00 End Date 03/0&03 23 00 --r---·-------- I ~+--------------+----------+,H . o,-- 0 !f-·-----·---- " ·~ MALHI 7-LOT SHORT PLAT TIR 10/28/2008 J ,r· ' '+ Hour i;,. - i"\ 215 I r I Undetained Developed lOYR Peak PAGE 1 9 OF 29 ;; 0 ~ -·-~---- . -.+------· -· -- 1 -----t------ S".21lDdle~;; 1!\,6COOO E·"' Da•c O (!511)1' ;3 ,,, 0 l----------·----------- 1.' ~l-------------hl------------- 11+~-11~-' \. -,_.J,,_c 6 --------- ~I---- " -" i I "' • "" --)< •+-------------·~-0 ~ ----·-----I ------i - 1 :,+--------------r- ',',{''I!,!<' Siert DBI~ 1 0/21/()1. 00 00 End DB\e 11/04!l)4 23'(!0 •+-------------------------- g -~i ~ -~=----"--=-'""'-· --~"-------'--'---------& " "' '" 360 -< ,, ' ,,, ' It' --)( ;; 0 "+-------- ~ ; ~+---------- t . .,.~ ._, 818!1 Oa!Q.02J0:1/D1 OD 00 End De\a:02116/01 23 00 i "+---------+---+-<----------------- " "' MALHI 7-LOT SHCR.T PLAT TIR 10/28/2008 ' '" 2116 3$0 JJGeoDatum,- Undetained Developed SYR Peak Undetained Developed 3YR Peak Undetained Developed 2YR Peak PAGE 20 OF 28 Duration Comparison Anaylsis Base File: predev.tsf New File: rdout.tsf Cutoff Units: Discharge in CFS ,,.,GeoDatum.· -----Fraction of Time--------------Check of Tolerance------- Cutoff Base New %Change Probability 0.017 0.89E-02 0.57E-02 -35.6 I 0.89E-02 0.021 0.61E-02 0.43E-02 -30.6 I 0.61E-02 0.026 0.47E-02 0.37E-02 -22.4 I 0.47E-02 0.030 0.36E-02 0.32E-02 -9.5 I 0.36E-02 0.035 0.28E-02 0.28E-02 -0.6 I 0.28E-02 0.039 0.22E-02 0.20E-02 -9.7 I 0.22E-02 0.043 0.15E-02 0.16E-02 11.1 I 0.15E-02 0.048 0.98E-03 0 .13E-02 30.0 I 0.98E-03 0.052 0.62E-03 0.93E-03 50.0 I 0.62E-03 0.057 0.34E-03 0.52E-03 52.4 I 0.34E-03 0.061 0.23E-03 0.28E-03 21. 4 I 0.23E-03 0.065 0.16E-03 0.13E-03 -20.0 I 0.16E-03 0.070 0.98E-04 O.OOE+OO -100.0 I 0.98E-04 0.074 0.16E-04 O.OOE+OO -100.0 I 0.16E-04 Maximum positive excursion= 0.005 cfs ( 9.8%) occurring at 0.048 cfs on the Base Data:predev.tsf and at 0.053 cfs on the New Data:rdout.tsf Maximum negative excursion= 0.007 cfs (-28.7%) occurring at 0.025 cfs on the Base Data:predev.tsf and at 0.018 cfs on the New Data:rdout.tsf Required detention vault volume= 166' x 35' x 2.5' = 14,525 CF Base 0.017 0.021 0.026 0.030 0.035 0.039 0.043 0.048 0.052 0.057 0.061 0.065 0.070 0.074 Proposed detention vault volume= 14,812 CF @ Maximum Stage Storage MALHI 7-L.OT SHORT PLAT TIR 10/28/2008 New %Change 0.016 -5.6 0.016 -24.5 0.019 -25.4 0.027 -9.8 0.034 -0.2 0.037 -4.9 0.046 6.0 0.051 7.8 0.056 6.9 0.059 3.9 0.063 2.9 0.065 -1.1 0.067 -4.1 0.069 -7.4 PAGE 2 l 0~ 28 :.Pau~ed rlowrrequrncy ICCRT!) r-fE fx I '" 11 f i ; I" ... r, 1 I J, • L•' 1,, 1(j -1 -----·------------ ;;; u. ~ "· ~ ~ .. " u • ~ i5 1Cf' ~ • 10·3 1 2 5 10 20 30 2 R • • oc 40 50 60 Ke.tur11 Pericc1 5 ------------- • • 70 80 90 95 Cumulative ProbE1b1hty, 50 100 ~ t 98 99 ::.r\iust.'d Uur~t10nf..n,1ly,;1s HftT<; ':". lt:i(X "' q 0 ~ 0 R 0 .,, q 0 "' q ;;; 0 u. l< ~ ~ ~ .. 0 " u ~ i5 M q 0 " q 0 00 0 0 0 0 0 0 10 ·5 10 -~ MALHI 7-LO"T 8HOR"T PLA"T TIR 1 O/ZB/2008 1,)(11,t 11,i: ,,, .\ ' ' '~r -~ \ \ \ ·, \ 10 -3 10 ·1 10 ·1 Probability Exceedence PAGE 22 OF 28 Developed -Stormwater BMPs Impervious Area: Lots = 7; average lot size = 4,106 SF Total lot area= 7 • 4,106 = 28, 742 SF Required BMPs on small lots must account for 10% of lot area (KCSWDM 5.2.1 .1) 28,742 SF• 10% = 2,874 SF of ISA must be treated via BMPs ,:a Ge_oDatum, A basic dispersion trench is the selected BMP on this project. Basic dispersion trenches treat 700 SF of ISA per 10 feet of trench. 10 (feet of trench)/ 700 (SF of ISA)• 2.~SF of ISA= 41 feet of trench required. 42 feel of trench will be provided on LyL} Water Quality Analysis and Design The basic water quality menu is to be used for this project. The selected BMP is a wet vault. Facility Sizing Calculations Runoff -New Developed Condition • V, = (0.9 A;+ 0.25 A1g + 0.19 A,+ 0.01 A0 ) x (R/12) • v,=(0.9· 33,066+0.25* 18,731)x(0.47/12) • V, = (29,759 + 4,863) x (0.47/12) • V, = 1,349CF Wetpool Volume • Vb= f.., Vr • Vb= 3 * 1,349 CF • Vb=4,047CF Required wet vault volume= 4,047 CF Provide 5.0' of dead storage below detention within south half of vault and above sediment storage of 12" Proposed wet vault volume= 88' L x 17.5' W x 5' D = 7,700 CF Length to width ratio= 88:17.5 = 5:1. • Per KCSWDM page 6-84 Vault Structure #3 no baffle is required since the length to width ratio is 5:1. MALHI 7-LCT SHORT PLAT TtR 10/28/2008 PAGE 2:3 OF 28 Section 5 -Conveyance System Analysis and Design For the conveyance analysis on this site the developed flows have been calculated using a 15-minute time step as follows. Flow Frequency Analysis Time Series File:devl5.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank Return Prob (CFS) (CFS) Period 0.357 6 8/27/01 18:00 1.10 1 100.00 0.990 0.254 8 1/05/02 15:00 0.770 2 25.00 0.960 0.770 2 12/08/02 17:15 0.499 3 10.00 0.900 0.288 7 8/23/04 14: 30 0.441 4 5.00 0.800 0.441 4 11/17/04 5:00 0.428 5 3.00 0.667 0.428 5 10/27/05 10:45 0.357 6 2.00 0.500 0.499 3 10/25/06 22:45 0.288 7 1. 30 0.231 1.10 1 1/09/08 6:30 0.254 8 1.10 0.091 Computed Peaks 0.992 50.00 0.980 The 2005 KCSWDM requires that the proposed storm drainage system can convey the 25 year peak flow. On this site the 25 year peak flow is 0. 77cfs when calculated using a 15 minute time step. The following backwater analysis demonstrates the flows that can be routed through the proposed conveyance system before it goes into overflow. BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:upvault.bwp Surcharge condition at intermediate junctions Tailwater Elevation:496.1 feet *Vault overflow elevation, worst case scenario* Discharge Range:0.5 to 4. Step of 0.5 [cfs] Overflow Elevation:496.91 feet Broad Crested Weir: Length:3. feet, Height:0. feet Upstream Velocity:3. feet/sec PIPE NO. 1: 4 LF -12"CP @ 55.50% OUTLET: 491.60 INLET: 493.82 INTYP: 1 JUNC NO. 1: OVERFLOW-EL: 505.20 BEND: 33 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.00 Q(CFS) HW(FT) HW ELEV. * N-FAC DC ON TW DO DE HWO HWI ******************************************************************************* 0.50 2.30 496.12 1. 00 2.31 496. 13 1. 50 2.35 496. 17 2.00 2.41 496. 23 2.50 2.48 496.30 3.00 2.56 4 96. 3 8 3.50 2. 67 496.49 MALHI ?-LOT SHORT PLAT • TIR 10/28/2008 * ' ' ' ' ' * 0.012 0.30 0.10 0.012 0.43 0.13 0.012 0.52 0.16 0.012 0.61 0.18 0.012 0.68 0.20 0.012 0.75 0.22 0.012 0.80 0.24 4.50 4.50 2.29 2.30 0.13 4.50 4.50 2.28 2.31 0.33 4.50 4.50 2.29 2.35 0.49 4.50 4 .50 2.29 2. 41 0.64 4.50 4 .50 2.30 2.48 0.78 4.50 4 .50 2.30 2.56 0.90 4.50 4 .50 2.31 2.67 1.13 PAGE 24 OF 28 4.00 2.78 496.60 * 0.012 0.85 0.26 4.50 4.50 2.32 2.78 1.39 PIPE NO. 2, JUNC NO. 2, 52 LF -12"CP @ OVERFLOW-EL, 504.73 0.67% OUTLET, 493.82 INLET, 494.17 INTYP, 1 BEND, 20 DEG DIA/WIDTH, 4.0 Q-RATIO, 0.50 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.50 1. 97 496.14 * 0.012 0.30 0.27 2.30 2.30 1. 96 1. 97 0.41 1. 00 2.04 496. 21 • 0.012 0.43 0. 39 2.31 2.31 2.00 2.04 0.62 1.50 2.17 496.34 * 0. 012 0.52 0.49 2.35 2.35 2.08 2.17 0.80 2.00 2.36 496.53 • 0.012 0.61 0.58 2.41 2.41 2.20 2.36 0.97 2.50 2.61 496.78 * 0.012 0.68 0.68 2.48 2.48 2.35 2.61 1.13 3.00 2.90 497.07 • 0.012 0.75 0.78 2.56 2.56 2.53 2.90 1.29 3.50 3.25 497,42 * 0.012 0.80 1. 00 2.67 2.67 2.74 3.25 1. 56 4.00 3.66 497.83 * 0.012 0.85 1. 00 2.78 2.78 2.99 3.66 1. 87 PIPE NO. 3, 95 LF -12"CP @ 0 .49% OUTLET, 494.17 INLET, 494.64 INTYP, 1 JUNC NO. 3' OVERFLOW-EL, 497.89 BEND, 10 DEG DIA/WIDTH, 2.0 Q-RATIO, 0.50 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.33 1. 51 496.15 * 0.012 0.24 0.24 1. 97 1.97 1. 51 1. 51 0.33 0.67 1. 61 4 96. 25 * 0.012 0.35 0.34 2.04 2.04 1.60 1. 61 0. 49 1. 00 1. Bl 496.45 * 0.012 0.43 0.43 2.17 2.17 1. 77 1. 81 0.62 1. 33 2.08 496. 72 * 0.012 0.49 0.50 2.36 2.36 2.01 2.08 0.74 1.67 2. 43 497.07 * 0.012 0.55 0.57 2.61 2.61 2.31 2.43 0.85 2.00 2.85 4 97. 4 9 • 0.012 0.61 0.64 2.90 2. 90 2.69 2.85 0.97 **************** OVERFLOW ENCOUNTERED AT 2.33 CFS DISCHARGE ***************** ******** OVERFLOW CONDITIONS CALCULATED ASSUMING SURCHARGE CONDITIONS ********* 2.33 3.35 497.99 • 0.012 0.66 0.72 3.25 3.25 3.13 3.35 1.07 2.67 3.93 498.57 • 0.012 0.71 0.81 3.66 3.66 3.64 3.93 1.18 PIPE NO. 4, 37 LF -12 11 CP @ 0. 51% OUTLET, 494.64 INLET, 494, 83 INTYP, l Q(CFS) HW(FT) HW ELEV. • N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.22 1. 33 496 .16 • 0.012 0.20 0.20 1. 51 1. 51 1. 33 1.19 0.12 0.44 1.43 496.26 * 0.012 0.28 0.28 1. 61 1. 61 1. 43 1. 30 0.25 0.67 1. 63 496.46 • 0.012 0.35 0.34 1. 81 1. 81 1. 63 1.51 0.35 0.89 1. 91 496.74 * 0.012 0.40 0.39 2.08 2.08 1. 91 1. Bl 0.44 **************•* OVERFLOW ENCOUNTERED AT 1.11 CFS DISCHARGE ***************** 1.11 2.25 497.08 • 0.012 0.40 0.39 2.43 2.43 2.25 2.14 0.41 1.33 2.67 497.50 * 0. 012 0.40 0.39 2.85 2.85 2.67 2.54 0.39 1. 56 3.17 498.00 * 0.012 0.40 0.39 3.35 3.35 3.17 3.03 0.39 1. 78 3.75 498.58 * 0.012 0.40 0.39 3.93 3.93 3.75 3.61 0.39 The system first overflows at 1 . 11 els at CB #7. 1. 11 els is more than the 25 year or 100 year developed flow for this site. Also the following page containing Figure 4.2.1.F "Nomograph for sizing circular drains flowing full" from the 2005 King County SWDM shows that A 12" in diameter CPEP (mannings 0.012) sloped at 0.5% has a flowing full capacity in excess of 2.5 CFS. Therefore the proposed stormwater conveyance system has more than adequate capacity. MALHI ?~LOT SHORT PLAT · TIFil 10/28/2008 PABE 25 OF" 28 J:IGeoDatum · Section 6 -Special Reports and Studies There are no special reports or studies other than the Soos Creek Basin Plan that we are aware of. A Geotechnical Engineering Study was performed by GeoGroup NW and has been submitted with this TIR under separate cover. Section 7 -Other Permits Upon approval of the engineering plans by KCDDES, a ROW use permit is required for all work within KC ROW. In addition, construction of water and sanitary sewer facilities to serve this project must conform to and be approved by the Soos Creek Water and Sewer District. Separate building permit applications for residential construction on individual lots must be submitted and approved by King County DOES. Section 8 -CSWPPPfTESC Analysis and Design A Construction Storm Water Pollution Prevention Plan is located in Appendix B. Temporary Erosion and Sediment Control Per Appendix D of the 2005 King County Surface Water Design Manual, the following information is presented in consideration of compliance with King County Erosion and Sediment Control Standards: Clearing Limits have been defined on the TESC/CSWPPP. Cover Measures both temporary and permanent are addressed in the construction sequence. Perimeter Protection is proposed in the form of Silt fence. Traffic Area Stabilization is proposed in the form of a Temporary Construction Entrance. Sediment Retention is proposed in the form of silt fence and sediment trap at the project perimeter until the vault is constructed. The vault will then be used for temporary sediment retention. Surface Water Collection is proposed by utilizing the vault for temporary surface water collection. DeWatering Control is not anticipated to be required for this project. If required, a "Baker" filtration tank will likely be utilized to filter stormwater prior to release into existing downstream storm drainage system. Temporary Dust Control other than the temporary construction entrance is not anticipated to be required. If fugitive dust becomes an issue, watering the soil before it is worked will alleviate the problem. Temporary Flow Control during construction is proposed in the form of utilizing the proposed detention vault once it has been constructed. See Construction Sequence. Sediment Trap Sizing 2,080 SF (0.20CFS) = 416 SF Section 9 -Bond Quantities, Facility Summaries, and Declaration of Covenant Please refer to Appendix A for Bond Quantities, Facility Summary and Declaration of Covenant. Section 10 -Operations and Maintenance Manual Please refer to the following pages for Operation and Maintenance Information. MALHI 7•LDT SHORT PLAT · TIR l 0/2B/20D8 PAGE 26 OF 28 APPENDIX A MAINTENANCE REQUIREMENTS FLOW CONTROL CONVEYANC'E. AND WQ FACILITIES NO. 3 -DETENTION TANKS AND VAULTS Maintenance Defect or Problem Conditions When Maintenance Is Needed Results Expected When Component Maintenance is Performed Storage Area Plugged Air Vents One-half of the cross section of a vent is blocked Vents free of debris and sediment at any poinl with debris and sediment. Debris and Sediment Accumulated sediment depth exceeds 10% of All sediment and debris removed the diameter of the slorage area for Y.z length of from slorage area. storage vault or any point depth exceeds 15% of diameter. Example: 72-inch storage tank would require cleaning when sediment reaches depth of 7 inches for more than Y.z length of tank. Joints Between Any crack allowing material 10 be transported inlo All joint between tank/pipe sections Tank/Pipe Section facility. are sealed Tank Pipe Bent Out of Any part of tank/pipe is bent out of shape more Tank/pipe repaired or replaced lo Shape than 10% of its design shape. design. Vault Structure Damage to Wall, Cracks Vvider than %-inch and any evidence of Vault replaced or repaired lo design Frame, Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks, or maintenance inspection personnel determines that the vault is not structurally sound. Damaged Pipe Joints Cracks wider than %-.inch at the joint of any No cracks more than %-inch wide at inlet/outlet pipe or any evidence of soil particles the joint of the inlet/outlet pipe. entering the vault through the walls. Manhole Cover Not in Place Cover is missing or only partially in place. Any Manhole is ciosed open manhole requires maintenance. Locking Mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Nol Working mainlenance person with proper tools. Botts into frame have less than !-4 inch of thread (may not apply lo ••"~ocking lids.) Cover Difficult to One maintenance person cannot remove lid after Cover can be removed and Remove applying 80lbs of lift. Intent is 10 keep cover from reinstalled by one maintenance sealing off access to maintenance. person. Ladder Rungs Unsafe King County Safety Office and/or maintenance Ladder meets design standards. person judges that ladder is unsafe due to Allows maintenance person safe missing rungs, misalignment. rust, or cracks. access. Large access Gaps. Doesn'I Cover Large access doors not flat and/or access hole Doors closes flal and covers access doors/plate Completely not completely covered. NOTE rn,,..,ver that hole completely. grated doors are acceptable. Lifting Rings Missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to remove lid Rusted or lid. 1/24/2005 2005 Surface Water Design Manual -Appendix A A-4 M'l'FNDIX A MAIN IENANCE REQUIREMENTS FOR FLOW CONTROL. CONVEYANCE. AND W() FACILITIES ..• . NO. 4 -CONTROL STRUCTURE/FLOW RESTRICTOR Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed General Trash and Debris Distance between debris build-up and botlom of All trash and debris removed (Includes Sediment) orifice plale is less than 1.5 feet Structural Damage Structure is not securely attached to manhole Structure securely attached to wall wall and outlet pipe structure should suppor1 at and outlet pipe. least 1,000 lbs of up or down pressure. Structure is not in upright position (allow up to Structure in correct position. 10% from plumb). Connections to outlet pipe are not watertight and Connections to outlet pipe are water show signs of rust. tight; structure repaired or replaced and works as designed. Any holes-other lhan designed holes---in lhe Structure has no holes other than structure. designed holes. Cleanout Gale Damaged or Missing Cleanout gate is nol watertighl or is missing Gate is watertight and works as designed. Gate cannot be moved up and down by one Gate moves up and down easily and maintenance person. is watertight. Chain/rod leading to gale is missing or damaged. Chain is in place and works as designed. Gate ·1s nJsted over 50% of its surface area. Gate is repaired or replaced 10 meet design slandards. Orifice Plate Damaged or Missing Control device is not 'INOrking property due to Plate is in place and VvOrks as missing, out of place, or bent orifice plate. designed. Obstructions Any trash, debris, sediment. or vegelalion Plate is free of all obstructions and blocking the plate. works as destgned. Overflow Pipe ObstnJctions Any trash or debris blocking (or having the Pipe is free of all obstructions and potential of blocking) the overflow pipe. works as designed. Manhole See "Detention Tanks See "Detention Tanks and Vaults" Table No. 3 See wDetenlion Tanks and Vaultsn and vaults" Table No. 3 2005 Surface Water Design Manual -Appendix A 1/24/2005 A-5 APPENDIX A M,\INTENANCF REQUIREMENTS FLOW ('0NTROL CONVEY/\NCc. AND IV() FACILITl~S --------- NO. 5-CATCH BASINS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is performed General Trash & Debris Trash or debris of more than Y.i cubic fool which No Trash or debris located (Includes Sediment) is located immediately in front of the catch basin immediately in rronl of catch basin opening or Is blocking capacity of the basin by opening more than 10%. Trash or debris (in the basin) !hat exceeds 1'3 the No trash or debris in the catch depth rrom the bottom of basin to invert the basin. lowesl pipe into or out of the basin. Trash or debris in any inlet or outlet pipe blocking Inlet and outlet pipes free of trash or more lhan 113 of its height debris. Dead animals or vegetation that could generate No dead animals or vegetation odors that could cause comp!aints or dangerous present within the catch basin gases (e.g., methane). Deposits of garbage exceeding 1 cubic foot in No condition present which would volume. attract or support the breeding of insects or rodents. Structure Damage to Comer of frame extends more than % inch past Frame is even with curb. Frame and/or Top curb face into the street (If applicable). Slab Top slab has holes larger lhan 2 square inches Top slab is free of holes and cracks. or cracks 'hider than Y. inch (intent is to make sure all material is running inlo basin). Frame not sitting flush on top slab. i.e., Frame is sitting flush on top slab. separation of more than % inch or the frame from the lop slab. Cracks in Basin Cracks wider than % inch and longer than 3 feet. Basin replaced or repaired lo design Walls/Bottom any evidence of soil partides enlering catch standards. basin through cracks, or maintenance person judges that structure is unsound. Cracks W'ider than ~ Inch and longer than 1 foot No cracks more than 11, inch wide al at the joint of any inleVoutlet pipe or any the joint of inleUoutlel pipe. evidence of soil particles entering catch basin through cracks. SettlemenV Basin has settled more than 1 inch or has rotated Basin replaced or repaired to design Misalignment more than 2 inches OUl of altgnment. standards. Fire Hazard Presence of chemicals such as natural gas, oil No flammable chemicals present and gasoline. Vegetation Vegetation growing across and blocking more No vegetation blocking opening to than 10% of the basin opening. basin. Vegetation grO\Ving in inJet/ouUet pipe joints that No vegetation or root growth is more than 6 inches tall and less than 6 inches present. apart. Pollution Nonflammabte chemicals of more than ~ cubic No pollution present other than fool per three feet of basin length. surface film. Catch Basin Cover Cover Nol in Place Cover is missing or only partially in place. Arfi Catch basin cover is closed open catch basin requires maintenance. locking Mechanism Mechanism cannot be opened by on Mechanism opens with proper tools Not Working maintenance person with proper tooJs. Bolts into frame have less than ~ inch of thread. Cover Difficult to One maintenance person cannot remove lid after Cover can be removed by one Remove applying 80 lbs. of lift; intenl is keep cover from maintenance person. sealing off access to maintenance. Ladder Ladder Rungs Unsafe ladder is unsafe due to missing rungs, ladder meets design standards and misalignment, rust, cracks, or sharp ectges allows maintenance person safe access. 1/24/2005 2005 Surface Water Design Manual -Appendix A A-6 APPENfllX A MAINTENANCE REQUIREMENTS FOR FLOW CONTROL. CONY LY ANCE. AND WQ FAClLIT!ES . NO. 5 -CATCH BASINS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is performed Metal Grates Unsafe Grale Grale with opening wider than 7/8 inch. Grate opening meets design (If Applicable) Opening standards. Trash and Debris Trash and debris thal is blocking more than 20% Grale free of trash and debris. of grate surface. Damaged or Missing. Grate missing or broken member(s) of the grate. Grate is in place and meets design standards. NO. 6 -DEBRIS BARRIERS (E.G., TRASH RACKS) Maintenance Defect or Problem Condition When Maintenance Is Needed Results Expected When Component Maintenance is Perfonned. General Trash and Debris Trash or debris that is plugging more than 20% Barrier clear to receive capacity of the openings in the barrier. flow. Melal Damaged/Missing Bars are bent oul of shape more than 3 inches. Bars in place with no bends more Bars. than,;.. inch. Bars are missing or enlire barrier missing. Bars in place according to design. Bars are loose and rust is causing 50% Repair or replace barrier lo design deterioration to any part of barrier. standards. NO. 7-ENERGY DISSIPATERS Maintenance Defect or Problem Conditions When Maintenance Is Needed Results Expected When Component Maintenance Is Performed. External: Rock Pad Missing or Moved Only one layer of rock exists above native soil in Replace rocks to design standards. Rock area five square feet or larger, or any exposure of native soil. Dispersion Trench Pipe Plugged with Accumulated sediment that exceeds 20% of the Pipe cleaned/flushed so that it Sediment design depth. matches design. Not Discharging Visual evidence of water discharging at Trench must be redesigned or Water Properly concenlrated points along trench (normal rebuilt to standards. condilton is a ~sheet flow" of water along trench). lntenl is lo prevent erosion damage. Perforations Plugged. Over % of perforations in pipe are plugged with Clean or replace perforated pipe. debris and sediment. Water Flows Out Top Maintenance person Observes water flowing oul Facility must be rebuilt or of MDistributor" Catch during any stonn less than the design storm or redesigned to standards Basin. its causing or appears likely to cause damage. Receiving Area Over-Water in receiving area is causing or has No danger of landslides Saturated potential of causing landslide problems. Internal: Manhole/Chamber Worn or Damaged Structure dissipating flow deteriorates 10 % or Replace structure to design Post. Baffles, Side of ortginal size or any concentrated 1NOrn spot standards. Chamber exceeding one square fool Yllhich 1NOuld make structure unsound. 2005 Surface Water Design Manual -Appendix A 1/24/2005 A-7 APPENIJIX A MAINTENANCE REQUIREMlN IS FOR FLOW l 'ON I ROL CONVEYANCE, AND WQ FACILITIES ....-------- NO. 10 -CONVEYANCE PIPES AND DITCHES _, Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment & Debris Accumulated sedimenl that exceeds 20% of the Pipe cleaned of all sediment and diameter of the pipe. debris. Vegetation Vegetation that reduces free movement of water All vegetation removed so waler through pipes. flows freely through pipes. Damaged Protective coaling is damaged; rust is causing Pipe repaired or replaced. more than 50% deterioration lo any part of pipe. Any dent that decreases the cross section area Pipe repaired or replaced. of pipe by more than 20%. Open Ditches Trash & Debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feel of ditch and slopes, dttches, Sediment Accumulated sediment that exceeds 20% of the Ditch cleaned/flushed of all design depth. sediment and debris so that it matches design. Vegetation Vegetation that reduces free movement of water Water flows freely through ditches. lhrough dttches, Erosion Damage to See NDelenlion Ponds· Table No. 1 See NDetention Ponds" Table No. 1 Slopes Rock Lining Out of Maintenance person can see native soil beneath Replace rocks to design standards. Place or Missing (If the rock lining, Applicable), N0.11-GROUNDS (LANDSCAPING) Maintenance Defect or Problem Conditions When Maintenance Is Needed Results Expected When Component Maintenance is Perfonned General Weeds Weeds growing in more than 20% of the Weeds present in less than 5% of (Nonpoisonous, not landscaped area (trees and shrubs onty) the landscaped area. noxious) Safety Hazard Any presence of poison ivy or other poisonous No poisonous vegetation present in vegetation. landscaped area. Trash or Litter Paper, cans, bottles, totaling more than 1 cubic Area clear of litter. foot 'Nithin a landscaped area {trees and shrubs only) of 1,000 square feet Trees and Shrubs Damaged Limbs or parts of trees or shrubs that are split or Trees and shrubs with less than 5% broken which affect more than 25% of the total of total foliage with splil or broken foliage of the tree or shrub. limbs. Trees or shrubs lhat have been blown down or Tree or shrub in place free of injury knocked over. Trees or shrubs which are not adequately Tree or shrub in place and supported or are leaning over, causing exposure adequatety supported; remove any of the roots. dead or diseased trees. 2005 Surface Water Design Manual -Appendix A I/24/2005 A-9 APPENDIX A MAINTENANCE REQUIREMENTS FLUW CONTROL. CONVEY ANl'E. AND W(.) FACILITIES ~----- N0.17-WETVAULT Maintenance Defect or Problem Condition When Maintenance is Needed Recommended Maintenance to Component Correct Problem Vault Area Trash/Debris Trash and debris accumulated in vault (includes Remove trash and debris. Accumulation floatables and non-floalables). Sediment Sediment accumulation in vault bottom exceeds Remove sediment from vault. Accumulation the depth of the sediment zone plus 6 inches. Ventilation Ventilation area blocked or plugged Remove or c~ar blocking material from ventilation area. A specified % of the vault surface area must provide venlilation lo the vault interior (seep. 6-82 for required%). Vault Slruclure Damage to Wall, Cracks wider than }4-.inch and any evidence of Vault replaced or repaired to design Frame, Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks. or maintenance inspection personnel determines lhat the vaull is nol structuralry sound. Damaged Pipe Joints Cracks wider than %-inch at the joint of any No cracks more than %·inch wide at inleVoutlet pipe or any evidence of soil particles the joint of the inleVoutlet pipe. entering the vault through the walls. Baffles Damaged/Defective Baffles corroding, cracking, warping and/or Repair or replace baffles to showing signs of failure as determined by specifications. maintenance/inspection staff. lnleVOutlet Damaged Pipes lnleVoutlet piping damaged or broken and in Pipe repaired and/or replaced. need of repair. Trash/Debris Trash and debris accumulated in pipe or Remove trash and debris. Accumulation inleVouOet (includes floatables and non- floatables). Access Cover Damaged/Not Cover cannot be opened or removed, especially Pipe repaired or replaced to proper Working by one peraon. mrking specifications. Access ladder Damaged Ladder is corrOded or deteriorated, not Ladder replaced or repaired to functioning property, missing rungs, has cracks specifications, and is safe to use as and/or misaligned. Confined space warning sign determined by inspection personnel. missing. Replace sign warning of confined space entry requirements. 1124/2005 2005 Surface Water Design Manual~ Appendix A A-14 I Damaged Pipe Joints Cracks wider than %-inch at the joints of any No cracks more than '%-inch wide at inleUouUet pipe or any evidence of soil particles the joint of the inlet/outlet pipe. I entering the vault through the walls. I Ventilation Ventilation area blocked or plugged Remove or clear blocking material from ventilation area. A specified % of the vault surface area must provide ventilation to !he vault interior (seep. 6-122 for required %). Baffles/Internal Damaged Baffles or walls corroding, cracking, warping Repair or replace baffles or walls to Walls and/or showing signs of failure as determined by specifications. maintenance/inspection person. Access Cover Damaged/No! Cover cannot be opened, corrosion/defonnation Cover repaired to proper working Working of cover. specifications or replaced. Access Ladder Damaged ladder is corroded or deteriorated, not Ladder replaced or repaired to functioning property, missing rungs, aacks, and specifications, and is safe to use as misaltgned. determined by inspection personnel. NO. 20 -STORMFIL TER® Maintenance Defect or Problem Condition When Maintenance Is Needed Recorn-Maintenance to Component Correct Problem Media Section Sediment Sediment depth exceeds 0.25 inches. No sediment deposits that would Accumulation on impede permeability of the compost Media. media. Trash/Debris Trash and debris accumulated on compost filter Trash and debris removed from the Accumulation bed. compost filler bed. First Chamber Sediment Sediment depth exceeds 6 inches in first No sediment deposits in vault bottom Accumulation chamber. of first chamber. Drain Pipes Sediment When drain pipes, clean-outs, become full with Remove Ule accumulated material Clean-Outs Acamt.ilatKJn sediment and/or debris. from the facilities. NO. 21 -STORMFIL TER® (CARTRIDGE TYPE) Maintenance Defect or Problem Condition Wilen Maintenance is Needed Recommended Maintenance to Component Cornet Problem Compost Media Plugged Drawdown of water through the media takes Replace media cartridges. longer than 1 hour, and/or overflow occurs frequently. Short Circuiting Flows do not property enter filler cartridges. Replace filler cartridges. Pipes Damaged Any part of the pipes that are etushed, damaged Pipe repaired and/or replaced. due to corrosion and/or settlement. Access Cover Damaged/Not Cover cannot be opened, one person cannot Cover repaired to proper working Working open the cover, corrosion/deformation of cover. specifications or replaced. Vauh Structure Damage to Wall, Cracks wider than '%-Inch and any evidence of Vault replaced or repaired to design Frame, Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks, or maintenance/inspection personnel determines that the vault is not structurally sound. Damaged Pipe Joints Cracks wider than 'k-inch at the joint of any No cracks more than Y..-inch wide at inlet/outlet pipe or any evidence of soil particles the join! of the inlet/outlet pipe. entering the vaul through the walls. Baffles Damaged Baffles corroding, cracking warping, and/or Repa~ or replace baffles to showing signs of failure as determined by specification. maintenance/inspection person. Access Ladder Damaged Ladder is corroded or deteriorated, not Ladder replaced or repaired and functioning property, missing rungs, aacks, and meets specifications, and is safe to misaligned. use as determined by inspection personnel. SECTION C.2 FLOW CONTROL BMPs 0 TEXT OF INSTRUCTIONS FOR BASIC DISPERSION Your property contains a stormwater management flow control BMP (best management practice) called e "basic dispersion," which was installed to mitigate the stormwater quantity and quality impacts of some or all of the impervious surfaces or non-native pervious surfaces on your property, Basic dispersion is a strategy for utilizing any available capacity of onsite vegetated areas to retain, absorb, and filter the runoff from developed surfaces. This flow control BMP has two primary components that must be maintained: (1) the devices that disperse runoff from the developed surfaces and (2) the vegetated area over which runoff is dispersed. Dispersion Devices The dispersion devices used on your property include the following as indicated on the flow control BMP site plan: D splash blocks, D rock pads, ii gravel filled trenches, D sheet flow. The size, placement, composition, and downstream ftowpaths of these devices as depicted by the flow control BMP site plan and design details must be maintained and may not be changed without written approval either from the King County Water and Land Resources Division or through a future development permit from King County. Dispersion devices must be inspected annually and after major storm events to identify and repair any physical defects. When native soil is exposed or erosion channels are present, the sources of the erosion or concentrated flow need to be identified and mitigated. Concentrated flow can be mitigated by leveling the edge of the pervious area and/or realigning or replenishing the rocks in the dispersion device, such as in rock pads and gravel filled trenches. Vegetated Flowpaths The vegetated area over which runoff is dispersed must be maintained in good condition free of bare spots and obstructions that would concentrate flows. • MALHI 7-LOT SHORT PLAT TIR 10/28/2008 Appendix A -Bond Quantity Worksheet, Facility Summary and Declaration of Covenant PAGE: 27 OF" 28 Site Improvement Bond Quantity Worksheet King County Department of Development & Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 Project Name: Malhi 7-Lot Short Plat Date: 10/30/2008 Location: 116th Avenue SE at SE 183rd Court , Renton, WA Project No.: L06S0006 Clearing greater than or equal to 5,000 board feet of timber? ~~~~~~~~yes If yes, Forest Practice Permit Number: (RCW 76.09) Page 1 of9 bondatvwksht x no Activity No.: L07SR043 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. Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 10/30/2008 Check dams, 4" minus rock 1 1/4" minus Ditchin Excavation-bulk Page 2 of9 hnn,..nhn11No:i.ht Site Improvement Bond Quantity Worksheet ed --~-~,,....---~---n , ,1 "..;" • • ~ -""'~~ '..a.~fa'.'.;:·.,_;~~i-: --~·--------~--T--. --ii £1'£~[ !M!'• !:ft;· .. ·1ot· SWDM 5.4.6.3 WSDOT 9-03.9 3 SWDM 5.4.3.1 SWDM 5.4.2.4 SWDM 5.4.2.2 SWDM 5.4.2.1 SWDM 5.4.2.1 SWDM 5.4.2.3 WSD0T9-13.1 2 SWDM 5.4.4.1 SWDM 5.4.4.1 SWDM 5.4.5.2 SWDM 5.4.5.1 SWDM 5.4.5.1 SWDM 5.4.2.4 SWDM 5.4.2.5 SWDM 5.4.2.5 $ 5.62 CY I 4311 $ 67.51 Each $ 85.45 CY $ 8.08 CY $ 1.50 CY 1700 $ 1.38 LF 500 $ 1.38 LF $ 0.59 SY $ 1.45 SY $ 2.01 SY $ 0.53 SY $ 10.70 LF $ 16.10 LF $ 20.70 LF 50 $ 2.30 SY $ 39.08 CY $ 1,464.34 Each $ 2,928.68 Each 1 $ 1,949.38 Each $ 17.91 LF $ 68.54 LF $ 0.51 SY $ 6.03 SY $ 7.45 SY $ 74.75 HR 40 $ 20 Each ESC SUBTOTAL: 30% CONTINGENCY & MOBILIZATION: ESCTOTAL: COLUMN: I Cost 11 2422 1 2550 1 690 1 I 1035 1 I 2929 1 2990 1 1955 $ 14,570.90 $ 4,371.27 $ 18,942.17 A Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet 8.53 0.36 $ 8,876.16 Excavation • bulk I$ 1.50 $ 4.06 $ 18.55 $ 13.44 $ 1,271.81 $ 12.12 $ 22.57 $ 25.48 $ 37.85 $ 54.31 $ 74.85 $ 132.48 $ 2.02 $ 0.95 $ 135.13 $ 2.88 $ 7.46 I sun= ino, line & orade $ 788.26 SunHMna, lot location/lines $ 1,556.64 1ers, $ 85.18 $ 7.59 $ 8.33 'Trail, 4" top course $ 8.19 Wall, retainina, concrete $ 44.16 Wall, rockery $ 9.49 Page 3 of 9 SUBTOTAL .. KCC 27A authorizes only one bond reduction. rlnnrlnhlWlrctht CY I SY Acre CY CY I LF LF Each LF CY CY I CY SY SY SY SY SY I Each I Each SY Dav Acre HR SY SY SY SF SF I 431 366.791 1801 _ 1_,535.401 51 481 194.88j 2001 812.ool 101 101 _1,783.601 2201 5,605.601 501 4001 380.00 16401 1,558.ooT 101 11 135.131 I I 21 1 788.26 ii 1,576.521 11 I I 1.5J 40 --~407.20 I T 2001 ____l,336.86 12,942.12 42.65 40.60 _1,274.00 9.50 270.26 788.26 ___ 2,334.96 1,ss8.ool )',220.23 Quantify Complel8d (Bond Reduction)• Coat Unit prices updated: 02112102 Version: 4122102 Report Date: 10/3012008 Site Improvement Bond Quantity Worksheet $ 5.75 $ 1.38 $ 41.14 $ 30.03 Barricade, """" Ill ( Permanent) $ 45.05 Curb & Gutter, rolled $ 13.27 Curb & Gutter, vertical $ 9.69 Curb and Gutter, demolition and discosal $ 13.58 Curb, extruded asahalt $ 2.44 $ 2.56 $ 1.85 Saweut, concrete, =r 1" death $ 1.69 Sealant, asphalt $ 0.99 Shoulder, AC, ( see AC road unit once) $ . Shoulder, aravel, 4" thick $ 7.53 Sidewalk, 4" thick $ 30.52 Sidewalk, 4" thick, demolition and disposal $ 27.73 Sidewalk, 5" thick $ 34.94 $ 34.65 $ 85.28 $ 5.82 $ 2.38 $ 0.25 Page4 of9 SUBTOTAL *KCC 27A authorizes only one bond redudion. hondatvwksht SY SY SY I 151 617.10 LF LF LF 1 1 I 4041 --~361.08 LF J 2091 2,025.21 LF LF LF LF I 2101 388.50 LF LF I 2101 207.90 SY SY SY I 1201 3,662.401 1001 3,052.00 SY SY SY Each Each SF LF I 18001 450.00 1_7_. 701.11 8,413.08 BonifReductlon" t:·j'l~:· I ,Quant -~·· Complele Cost Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet AC Overtav, 1.5" AC $ 7.39 AC Overtav, 2" AC $ 8.75 AC Road, 2", 4" rock, First 2500 SY $ 17.24 AC Road, 2", 4" rock, Qtv. over 2500SY $ 13.36 AC Road, 3", 4" rock, First 2500 SY $ 19.69 1AC Road, 3", 4" rock, ru..,. over 2500 SY $ 15.81 AC Road, 5", First 2500 SY $ 14.57 AC Road, 5", ntv, Over 2500 SY $ 13.94 ,Ac Road, 6", First 2500 SY $ 16.76 $ 16.12 $ 9.21 Gravel Road, 4" rock, First 2500 SY $ 11.41 Gravel Road, 4" rock, Qtv. over 2500 SY $ 7.53 PCC Road, 5", no base, over 2500 SY $ 21.51 PCC Road, 6", no base, over 2500 SY $ 21.87 Thickened Edge $ 6.89 Page 5 of9 SUBTOTAL *KCC 27 A authorizes only one bond redudion. hnnrlntvwlo:.ht SY I SY SY I SY SY SY SY SY SY j SY SY SY SY SY SY LF T 4501. 3,325.50 I l 1101 200J _3,352.ool 1001 sol 344.501 7,022.00 1,896.401 201 11,132.001 201 __11,628.40 Bond Reduction• ,g11";;?'7~-,·-'-'·-1._Quant. -· ·· Complete Cost 344.80 335.20 680.00 Unit prices updated: 02112102 Version: 4/22/02 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet Access Road.!. RID 16.74 Bollards • fixed 240.74 Bollards -removable 452.34 • !CBs include frame and lid CBT• $ 1,257.64 $ 1,433.59 II.!. 48" diameter $ 2,033.57 for additional dee_th over 4' $ 436.52 CB Type II, 54" diameter $ 2,192.54 for additional deJ:>!h over 4' $ 486.53 CBT• $ 2,351.52 $ 536.54 $ 3,212.64 $ 692.21 $ 366.09 Cteanout, PVC, 4" $ 130.55 Cleanout, PVC, 6" $ 174.90 Cteanout, PVQ, 8" $ 224.19 Culvert, PVC, 4" $ 8.64 Culvert, PVC, 6" $ 12.60 Culvert, PVC, 8" $ 13.33 Culvert, PVC, 12" $ 21.77 Culvert, CMP, 8" $ 17.25 Culvert, C"'1P, 12" $ 26.45 Culvert,CMP, 15" $ 32.73 Culvert, CMP, 18" $ 37.74 Culvert, CMP, 24" $ 53.33 Culvert, CMP, 30" $ 71.45 Culvert, CM.P, 36" $ 112.11 Culvert, CMP, 48" $ 140.83 Culvert, CMP, 60" $ 235.45 Culvert, CMP, 72" $ 302.58 Page 6 of9 SUBTOTAL *KCC 27A authorizes only one bond reduction. hnnrlntvwk!i.ht 45 Each Each 2 Each 3 Each Each 2,033.57 2 FT 15 Each FT Each FT Each FT Each Each Each Each LF LF LF LF LF LF LF LF LF LF LF LF LF LF 2,033.57 904.68 3,772.92 4,067.14 6,547.80 16,045.84 Bond Reduction• •< ,·, 1 . Quant. l' · ~-· ·· Complete Cost ~_,,-.. -···-··.--:,; _ _;·--' f/prjltt!<f PVC I• same J)lk:e as solid p;pe. 7 1,224.30 1,224.30 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 10130/2008 Site Improvement Bond Quantity Worksheet -· Culvert, Concrete, 8" $ 21.02 Culvert, Concrete, 12" $ 30.05 Culvert, Concrete, 15" $ 37.34 Culvert, Concrete, 18" $ 44.51 Culvert, Concrete, 24" $ 61.07 Culvert, Concrete, 30" $ 104.18 Culvert, Concrete, 36" $ 137.63 Culvert, Concrete, 42" $ 158.42 1Culvert, Concrete, 48" $ 175.94 Culvert, CPP, 6" $ 10.70 Culvert, CPP, 8" $ 16.10 Culvert, CPP, 12" $ 20.70 Culvert, CPP, 15" $ 23.00 Culvert, CPP, 18" $ 27.60 Culvert, CPP, 24" $ 36.80 Culvert, CPP, 30" $ 48.30 Culvert, CPP, 36" $ 55.20 Ditchino $ 8.08 Flow Dispersal Trench (1,436 base+) $ 25.99 French Drain (3' depth) $ 22.60 •ne $ 2.40 Infiltration pond testina $ 74.75 Mid-tank Access Riser, 48" dia, 6' deeo $ 1,605.40 Pond Overflow Soillwav $ 14.01 Restrictor/Oil Separator, 12" $ 1,045.19 Restrictor/Oil Separator, 15" $ 1,095.56 $ 1,146.16 $ 39.08 Tank End Reducer 136" diameter) $ 1,000.50 Trash Rack, 12· $ 211.97 Trash Rack, 15" $ 237.27 1Trash Rack, 18" $ 268.89 ITrash Rack, 21" $ 306.84 Page 7 of 9 SUBTOTAL *KCC 27A authorizes only one bond reduction. hn,irlnt\iwk~ht " LF • ' LF LF LF LF LF LF LF LF LF I I I I I 4801 LF LF I 1001 20701 2001 4140 LF LF LF LF LF CY I 101 80.8 LF LF SY HR Each SY Each I I I 1 I 1045. 19 Each Each CY Each Each Each Each Each 2150.8 5185.19 Bond Reduction• :::I"" leom Cost I 5136 5136 Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet 2" AC, 2" top course rock & 4" borrow $ 15.84 SY 2" AC, 1.5" top course & 2. 5" base course $ 17.24 SY 4" select borrow $ 4.55 SY 1.5" lop course rock & 2.5" base coursf:! ___ $ 11.41 SY Vault $ 7.00 j CF EA. LF EA. EA. EA. LF SF LF LF SUBTOTAL SUBTOTAL (SUM ALL PAGES): 30% CONTINGENCY & MOBILIZATION: Page a of 9 *KCC 27A authorizes only one bond reduction. hnnrintvwk~ht GRANDTOTAL: COLUMN: •}C 22,512 36,244.34 56,214.63 10,873.30 16,864.39 47,117.64 73,079.02 B C 157,584.00 157,584.00 171,844.53 51,553.36 223,397.89 D Bond Reduction• Quant Complete Coll E Unit prices updated: 02112102 Version: 4122102 Report Date: 1013012008 Site Improvement Bond Quantity Worksheet Original bond computations prepared by: Name: Che!l'.I Girard Date: 10130/2008 PE Registration Number: 33190 Tel.#: 425-837-8083 Firm Name: GeoDatum, Inc. Address: 1505 NW Mall Street, Issaquah, WA 98027 Project No: L06S0006 ROAD IMPROVEMENTS & DRAINAGE FACILITIES FINANCIAL GUARANTEE REQUIREMENTS Stabilization/Erosion Sediment Control (ESC} Existing Right-of-Way Improvements Future Public Road Improvements & Drainage Facilitie 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• Total NAME OF PERSON PREPARING BOND• REDUCTION: PERFORMANCE BOND" AMOUNT (A) $ 18,942.2 (B) $ 47,117.6 (C} $ 73,079.0 (D) j 223,397.9 (A+B) $ 66,059.8 (T) $ 362,536.7 M1n1mum 6ond 4 amount 1s $1000. BOND• AMOUNT REQUIRED AT RECORDING OR TEMPORARY OCCUPANCY••• (E} $ T x0.30 $ 108,761.0 OR (T-E) $ 362,536.7 Use larger of Tx30% or (f-E) Date: * NOTE: The word "bond" as used in this document means any financlal guarantee acceptable to King County. -NOTE: KCC 27A authorizes right of way and site restoration bonds to be combined when both are required. PUBLIC ROAD & DRAINAGE MAINTENANCE/DEFECT BOND" (B+C} x 0.25 ~ $ 30,049.2 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. For example, if a salmon id 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 27A, total bond amounts remaining after reduction shall not be less than 30% of the original amount <nor as revised by major design changes. SURETY BOND RIDER NOTE: If a bond rider is used, minimum addttional performance bond shall be ! $ 296,476.9 ! (C+D)-E REQUIRED BOND" AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY DOES Page 9 of9 hondatvwksht Unit prices updated: 02112/02 Version: 4/22/02 Report Date: 10/30/2008 KINC COUNTY, WASHINGTON. ~URFACE WAHR DESICN MANUAL STORMWATER FACILITY St;MMARY SHEET ODES Pem1it Number /_f'lf3_g___cz_1_2_ (providr one Stonnwater Facility Summary Sheet per Natural Discharge Location) Overview: Downstream Drainage Basins Major Basin Name ~~ EJ. V&-R_ Immediate Basin Name _:;5,oQS. C-lc.E-1.,J,:( Flow Control: Flow Control Facility Name/NumberlZ~f\\ / h]Q I VtUZL--T Facility Location~,-: _ _d_ -Sf_ I B.3rW crj.1 I (afH .. -81L£. "SE- If none, Flow control provided in regional/shared facility (give location). ____ _ No flow control required_.. Exemption number General Facility Information: Type/Number of detention facilities: Type/Number of infiltration facilities: ponds ponds =-.[~ vaults __ tanks tanks trenches Control Structure Location . I L1:'S-..1: E.-NO 0£..JLA.Yl..--T NtA::JR I /&rt/ fr.If; ~N Type of Control Structure 12::..¢. R..IS:fd?'., Number of Orifices/Restrictions Size of Orifice/Restriction: No. I 0; G 8 II No. 2 -..L..0.,.40 1! __ _ No. 3 A No.4 A Flow Control Performance Standard L&i!U Z- 2005 Surface Wate1 Design Manual 1/1105 KING COUNJY, WASHINGTON, SURFACE WATLR llESIG" MANUAL Live Storage Volume_ l4,6J~Q:f _ Number of Acres Served _JJ2_1 _ Number of Lots ___ -~ _____ _ Depth Dam Safety Regulations (Washington State Department of Ecology) Reservoir Volume above natural grade ____ Nf!,s_ Depth of Reservoir above natural grade __ -Nj-/i __ -~-_ Facility Summary Sheet Sketch Volume Factor of Safety All detention, infiltration and water quality facilities must include a detailed sketch. ( 11 "x 17" reduced size plan sheets may be used) 1 /1/05 2005 Surface Water Design Manual 1 KING COUNl \ WASHINGTON. SURFACE WAl FR DFSIGN MANUAL Water Quality: Type/Number of water quality farilities/BMPs: biofiltration swale large) above (regular/wet/ or continuous inflow) large) ___ combined detention/wetpond ----- ---- (wetpond portion basic or large) combined detention/wetvault filter strip flow dispersion ----farm management plan ___ landscape management plan _____ oil/water separator (baffle or coalescing plate) Liner? ------------ catch basin inserts: Manufacturer ----- --pre-settling pond ___ pre-settling structure: Manufacturer ·----- ___ sand filter (basic or large) _ sand filter, linear (basic or _____ sand filter vault (basic or sand bed depth____ (inches) stormwater wetland A--storm filter _____ wetpond (basic or large) _A wetvault ___ Is facility Lined? If so, what marker is used ___ high flow bypass structure (e.g., flow-splitter catch basin) source controls Design Information Water Quality design flow _____ 0, 20 Cf S Water Quality treated volume (sandfilter) _______ _ Water Quality storage volume (wetpool) ~)I g'...f:,.D ~041 C-f fto/1 D£I7 1; 700 c.f- Facility Summary Sheet Sketch 2005 Surface Water Design Manual 1/1/05 MALHI 7~LoT 8HDR.T PLAT -TIR 1 D/28/200B f IGeoDatum Appendix B -Construction Storm Water Pollution Prevention Plan PAGE 28 OF 28 Stormwater Pollution Prevention Plan Owner Harinder Bap I a 950 I S 207th Pl Kent, WA 98031 For Malhi Short Plat Prepared For Northwest Regional Office 3190 -160th Avenue SE Bellevue, WA 98008-5452 425-649-7000 Developer Operator/Contractor American Asian Construction, American Asian LLC Construction, LLC 950 I S 207th Pl 950 I S 207th Pl Kent, WA 98031 Kent, WA 98031 Project Site Location 18311 I 16th Ave SD, Renton, WA 98058 Certified Erosion and Sediment Control Lead Cheryl Girard (425) 837-8083 SWPPP Prepared By GeoDatum, Inc. 1505 NW Mall St. Issaquah, WA 98027 (425) 837-8083 Chris Wadsworth, Civil Designer SWPPP Preparation Date 09/18/08 Approximate Project Construction Dates Fall 2008 Spring 2009 Contents 1.0 Introduction ............................................................................................................................... 1 2.0 Site Description ........................................................................................................................ 3 2.1 Existing Conditions ........................................................................................................... 3 2.2 Proposed Construction Activities ...................................................................................... 3 3.0 Construction Stonnwater BMPs ............................................................................................... 5 3.1 The 12 BMP Elements ....................................................................................................... 5 3.1.1 Element #I -Mark Clearing Limits ................................................................ 5 3.1.2 Element #2 -Establish Construction Access ................................................... 5 3.1.3 Element #3 -Control Flow Rates .................................................................... 6 3.1.4 Element #4 -Install Sediment Controls .......................................................... 6 3.1.5 Element #5-Stabilize Soils ............................................................................ ? 3.1.6 Element #6-Protect Slopes ............................................................................ 8 3. I. 7 Element #7 -Protect Drain Inlets .................................................................... 8 3 .1.8 Element #8 -Stabilize Channels and Outlets ............................................... .1 O 3 .1.9 Element #9 -Control Pollutants ................................................................... .1 O 3.1.10 Element #10-Control Dewatering ............................................................... 13 3. I. I I Element # 11 -Maintain BMPs ..................................................................... .14 3 .1.12 Element # 12 -Manage the Project.. .............................................................. 14 3.2 Site Specific BMPs .......................................................................................................... 16 3.3 Additional Advanced BMPs ............................................................................................ 17 4.0 Construction Phasing and BMP Implementation ................................................................... 17 5.0 Pollution Prevention Team ...................................................................................................... 18 5. I Roles and Responsibilities ............................................................................................... 18 5.2 Team Members ................................................................................................................ 19 6.0 Site Inspections and Monitoring ............................................................................................. 19 6.1 Site Inspection ................................................................................................................. 19 6.1.1 Site Inspection Frequency .............................................................................. 20 6.1.2 Site Inspection Documentation ...................................................................... 20 6.2 Stonnwater Quality Monitoring ...................................................................................... 20 6.2.1 Turbidity ........................................................ Error! Bookmark not defined. 6.2.2 pH ................................................................................................................... 20 7.0 Reporting and Recordkeeping ................................................................................................ 21 7. I Recordkeeping ................................................................................................................. 21 7.1.1 SiteLogBook ................................................................................................ 21 7 .1.2 Records Retention .......................................................................................... 22 7 .1.3 Access to Plans and Records .......................................................................... 22 II 7.1.4 Updating the SWPPP ..................................................................................... 22 7.2 Reporting ......................................................................................................................... 22 7 .2.1 Discharge Monitoring Reports ....................................................................... 22 7.2.2 Notification ofNoncompliance ...................................................................... 22 7.2.3 Permit Application and Changes ................... Error! Bookmark not defined. Appendix A -Site Plans ......................................................................................................... 24 Appendix B -Construction BMPs ......................................................................................... 28 Appendix C -Alternative BMPs ............................................................................................ 29 Appendix D -General Permit ............................................................................................... .30 Appendix E -Site Inspection Forms (and Site Log) ............................................................. .30 Appendix F -Engineering Calculations ................................................................................ .40 Appendix A Site plans • Vicinity map (with all discharge points) • Site plan with TESC measures Appendix B Construction BMPs • Possibly reference in BMPs, but likely it will be a consolidated list so that the applicant can photocopy from the list from the SWMM. Appendix C Alternative Construction BMP list • List of BMPs not selected, but can be referenced if needed in each of the 12 elements Appendix D General Permit Appendix E Site Log and Inspection Forms Appendix F Engineering Calculations (if necessary) • Flows, ponds, etc ... Ill Stormwater Pollution Prevention Plan 1.0 Introduction This Stormwater Pollution Prevention Plan (SWPPP) has been prepared as part of the NPDES stormwater permit requirements for the Malhi Short Plat construction project in Renton, Washington. The site is located in Renton, east of State Highway W A-515. The existing site is a I. I-acre lot with a house and detached garage. The proposed development consists of a 7-Lot short plat, storm water detention/water quality facility, construction of a new residential street and cul-de-sac with sidewalk and landscaping. Construction activities will include demolition, excavation, grading and relocation of onsite services/utilities. The purpose of this SWPPP is to describe the proposed construction activities and all temporary and permanent erosion and sediment control (TESC) measures, pollution prevention measures, inspection/monitoring activities, and recordkeeping that will be implemented during the proposed construction project. The objectives of the SWPPP are to: 1. Implement Best Management Practices (BMPs) to prevent erosion and sedimentation, and to identify, reduce, eliminate or prevent stormwater contamination and water pollution from construction activity. 2. Prevent violations of surface water quality, ground water quality, or sediment management standards. 3. Prevent, during the construction phase, adverse water quality impacts including impacts on beneficial uses of the receiving water by controlling peak flow rates and volumes ofstormwater runoff at the Permittee's outfalls and downstream of the outfalls. This SWPPP was prepared using the Ecology SWPPP Template downloaded from the Ecology website on July 2, 2005. The SWPPP is based on the requirements set forth in the Construction Stormwater General Permit, Stormwater Management Manual for Western Washington (SWMMWW 2005). The report is divided into seven main sections with several appendices that include stormwater related reference materials. The topics presented in each of the main sections are: • Section I -INTRODUCTION. This section provides a summary description of the project, and the organization of the SWPPP document. • Section 2 -SITE DESCRIPTION. This section provides a detailed description of the existing site conditions, proposed construction activities, and calculated storm water flow rates for existing conditions and post- construction conditions. Stormwater Pollution Prevention Plan • Section 3 -CONSTRUCTION BMPs. This section provides a detailed description of the BMPs to be implemented based on the 12 required elements of the SWPPP (SWMMEW 2004). • Section 4 -CONSTRUCTION PHASING AND BMP IMPLEMENTATION. This section provides a description of the timing of the BMP implementation in relation to the project schedule. • Section 5 -POLLUTION PREVENTION TEAM. This section identifies the appropriate contact names ( emergency and non-emergency), monitoring personnel, and the onsite temporary erosion and sedimentation control inspector • Section 6 -INSPECTION AND MONITORING. This section provides a description of the inspection and monitoring requirements such as the parameters of concern to be monitored, sample locations, sample frequencies, and sampling methods for all stormwater discharge locations from the site. • Section 7 -RECORDKEEPING. This section describes the requirements for documentation of the BMP implementation, site inspections, monitoring results, and changes to the implementation of certain BMPs due to site factors experienced during construction. Supporting documentation and standard forms are provided in the following Appendices: Appendix A -Site plans Appendix B -Construction BMPs Appendix C -Alternative Construction BMP list Appendix D -General Permit Appendix E -Site Log and Inspection Forms Appendix F -Engineering Calculations 2 Stormwater Pollution Prevention Plan 2.0 Site Description 2.1 Existing Conditions The proposed site is located east of State Highway WA-515 in Renton, Washington. A site vicinity map is located in Appendix A. The site is 1.18 acres in size and contains a house and detached garage in the existing condition. The topography of the site and surrounding properties gently slopes to the northeast. Surface soils consist of silty sandy loam. There are no erosion hazard areas, wetlands, streams, steep slopes, landslide hazard areas, or any other critical areas on the site. 2.2 Proposed Construction Activities The proposed development consists of a 7-Lot short plat, stormwater detention/water quality vault, construction of a new residential street and cul-de-sac with a sidewalk and landscaping. A combined stormwater detention and wetvault will be constructed in the northeast corner of the site. New sanitary, electrical, gas, and storm drain utilities will also be constructed. Construction activities will include site preparation, TESC installation, demolition of the existing house and detached garage structures, excavation for the building foundations and pre-cast concrete stormwater vault, site-wide grading, and street construction. The schedule and phasing ofBMPs during construction is provided in Section 4.0. Storm water runoff volumes were calculated using the King County Runoff Time Series (KCRTS). The temporary sedimentation pond that will be used during construction was designed using the 2-year storm event since construction will not occur over a long time-frame (approximately six months). The combined detention and wetvault was designed using the 2005 King County Surface Water Design Manual chapter 6.4.1.1 method of analysis. This method is based on the precipitation for the mean annual storm in the area. The detention volume was designed by matching pre and post construction flows and durations for 50 percent of the 2-year flow through the 50-year flow. After all new utilities are installed, the site will be graded and paved. The following summarizes details regarding site areas: • Total site area: • Percent impervious area before construction: 3 1.81 acres 7.32 % Stormwater Pollution Prevention Plan • • • • • • • • • Percent impervious area after construction: Disturbed area during construction: Disturbed area that is characterized as impervious (i.e .• access roads. staging, parking): 2-year storm water runoff peak flow prior to construction (entirely forested): 10-year storm water runoff peak flow prior to construction (entirely forested): 2-year stormwater runoff peak flow during construction: I 0-year stormwater runoff peak flow during construction: 2-year stormwater runoff peak flow after construction: I 0-year stormwater runoff peak flow after construction: Stormwater flow calculations are provided in Appendix F. 4 63.56 % 1.18 acres 0.75 acres 0.033 cfs 0.057 cfs 0.22 cfs 0.265 cfs 0.016 cfs 0.057 cfs Stormwater Pollution Prevention Plan 3.0 Construction Stormwater BMPs 3.1 The 12 BMP Elements 3.1.1 Element #1 -Mark Clearing Limits To protect adjacent properties and to reduce the area of soil exposed to construction, the limits of construction will be clearly marked before land-disturbing activities begin. Trees that are to be preserved, as well as all sensitive areas and their buffers, shall be clearly delineated, both in the field and on the plans. In general, natural vegetation and native topsoil shall be retained in an undisturbed state to the maximum extent possible. The BMPs relevant to marking the clearing limits that will be applied for this project include: • Stake and Wire Fence (BMP C104) • Filter Fabric Fence • Orange construction fence • Labeled flagging . To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.2 Element #2 -Establish Construction Access Construction access or activities occurring on unpaved areas shall be minimized, yet where necessary, access points shall be stabilized to minimize the tracking of sediment onto public roads, and wheel washing, street sweeping, and street cleaning shall be employed to prevent sediment from entering state waters. All wash wastewater shall be controlled on site. The specific BMPs related to establishing construction access that will be used on this project include: • Stabilized Construction Entrance (BMP CIOS) Alternate construction access BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP( s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and 5 Stormwater Pollution Prevention Plan Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.3 Element #3 -Control Flow Rates In order to protect the properties and waterways downstream of the project site, stormwater discharges from the site will be controlled. The specific BMPs for flow control that shall be used on this project include: • Sediment Trap (BMP C240) • Detention Vault Alternate flow control BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP( s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. The project site is located west of the Cascade Mountain Crest. As such, the project must comply with Minimum Requirement 7 (Ecology 2005). In general, discharge rates of stormwater from the site will be controlled where increases in impervious area or soil compaction during construction could lead to downstream erosion, or where necessary to meet local agency stormwater discharge requirements ( e.g. discharge to combined sewer systems). 3.1.4 Element #4 -Install Sediment Controls All storm water runoff from disturbed areas shall pass through an appropriate sediment removal BMP before leaving the construction site or prior to being discharged to an infiltration facility. The specific BMPs to be used for controlling sediment on this project include: • • • • Silt Fence (BMP C233) Sediment Trap (BMP C240) Storm Drain Inlet Protection (BMP C220) Detention Vault 6 Stormwater Pollution Prevention Plan Alternate sediment control BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. In addition, sediment will be removed from paved areas in and adjacent to construction work areas manually or using mechanical sweepers, as needed, to minimize tracking of sediments on vehicle tires away from the site and to minimize washoff of sediments from adjacent streets in runoff. Whenever possible, sediment laden water shall be discharged into onsite, relatively level, vegetated areas (BMP C240 paragraph 5, page 4-102). In some cases, sediment discharge in concentrated runoff can be controlled using permanent stormwater BMPs (e.g., infiltration swales, ponds, trenches). Sediment loads can limit the effectiveness of some permanent stormwater BMPs, such as those used for infiltration or biofiltration; however, those BMPs designed to remove solids by settling (wet ponds or detention ponds) can be used during the construction phase. When permanent stormwater BMPs will be used to control sediment discharge during construction, the structure will be protected from excessive sedimentation with adequate erosion and sediment control BMPs. Any accumulated sediment shall be removed after construction is complete and the permanent stormwater BMP will be restabilized with vegetation per applicable design requirements once the remainder of the site has been stabilized. The following BMPs will be implemented as end-of-pipe sediment controls as required to meet permitted turbidity limits in the site discharge(s). Prior to the implementation of these technologies, sediment sources and erosion control and soil stabilization BMP efforts will be maximized to reduce the need for end-of-pipe sedimentation controls. • Temporary Sediment Trap (BMP C241) • Utilize Proposed Stormwater Vault 3.1.5 Element #5 -Stabilize Soils Exposed and unworked soils shall be stabilized with the application of effective BMPs to prevent erosion throughout the life of the project. The specific BMPs for soil stabilization that shall be used on this project include: • Cover measures (using straw, platic sheeting, etc.) 7 Stormwater Pollution Prevention Plan • Placing Grass Seed Alternate soil stabilization BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. The project site is located west of the Cascade Mountain Crest. As such, no soils shall remain exposed and unworked for more than 7 days during the dry season (May I to September 30) and 2 days during the wet season (October I to April 30). Regardless of the time of year, all soils shall be stabilized at the end of the shift before a holiday or weekend if needed based on weather forecasts. In general, cut and fill slopes will be stabilized as soon as possible and soil stockpiles will be temporarily covered with plastic sheeting. All stockpiled soils shall be stabilized from erosion, protected with sediment trapping measures, and where possible, be located away from storm drain inlets, waterways, and drainage channels. 3.1.6 Element #6 -Protect Slopes All cut and fill slopes will be designed, constructed, and protected in a manner that minimizes erosion. The following specific BMPs will be used to protect slopes for this project: • Filter fabric fence and cover measures will be utilized. There is very little slope across this site. Alternate slope protection BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.7 Element #7 -Protect Drain Inlets There are no storm drain inlets near the site that could potentially receive surface runoff from the construction site. 8 Stormwater Pollution Prevention Plan All storm drain inlets and culverts made operable during construction shall be protected to prevent unfiltered or untreated water from entering the drainage conveyance system. However, the first priority is to keep all access roads clean of sediment and keep street wash water separate from entering storm drains until treatment can be provided. Storm Drain Inlet Protection (BMP C220) will be implemented for all drainage inlets and culverts that could potentially be impacted by sediment-laden runoff on and near the project site. The following inlet protection measures will be applied on this project: Drop Inlet Protection • • • • • Excavated Drop Inlet Protection Block and Gravel Drop Inlet Protection Gravel and Wire Drop Inlet Protection Catch Basin Filters Alternative BMP not included in the SWMMWW (2005) or SWMMEW (2004) Curb Inlet Protection Wooden Weir • • Block and Gravel Curb Inlet Protection Alternative BMP not included in the SWMMWW (2005) or SWMMEW (2004) Culvert Inlet Protection Culvert Inlet Sediment Trap Alternative BMP not included in the SWMMWW (2005) or SWMMEW (2004) If the BMP options listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D), or if no BMPs are listed above but deemed necessary during construction, the Certified Erosion and Sediment Control Lead shall implement one or more of the alternative BMP inlet protection options listed in Appendix C. 9 Stormwater Pollution Prevention Plan 3.1.8 Element #8 -Stabilize Channels and Outlets Where site runoff is to be conveyed in channels, or discharged to a stream or some other natural drainage point, efforts will be taken to prevent downstream erosion. The specific BMPs for channel and outlet stabilization that shall be used on this project include: • • Sediment trap preceding surface water discharge Stormwater vault preceding surface water discharge Alternate channel and outlet stabilization BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. The project site is located west of the Cascade Mountain Crest. As such, all temporary on-site conveyance channels shall be designed, constructed, and stabilized to prevent erosion from the expected peak 10 minute velocity of flow from a Type I A, I 0-year, 24-hour recurrence interval storm for the developed condition. Alternatively, the I 0-year, I-hour peak flow rate indicated by an approved continuous runoff simulation model, increased by a factor of 1.6, shall be used. Stabilization, including armoring material, adequate to prevent erosion of outlets, adjacent streambanks, slopes, and downstream reaches shall be provided at the outlets of all conveyance systems. 3.1.9 Element #9-Control Pollutants All pollutants, including waste materials and demolition debris, that occur onsite shall be handled and disposed of in a manner that does not cause contamination of stormwater. Good housekeeping and preventative measures will be taken to ensure that the site will be kept clean, well organized, and free of debris. If required, BMPs to be implemented to control specific sources of pollutants are discussed below. Vehicles, construction equipment, and/or petroleum product storage/dispensing: • All vehicles, equipment, and petroleum product storage/dispensing areas will be inspected regularly to detect any leaks or spills, and to identify maintenance needs to prevent leaks or spills. • On-site fueling tanks and petroleum product storage containers shall include secondary containment. 10 • • • Stormwater Pollution Prevention Plan Spill prevention measures, such as drip pans, will be used when conducting maintenance and repair of vehicles or equipment. In order to perform emergency repairs on site, temporary plastic will be placed beneath and, if raining, over the vehicle. Contaminated surfaces shall be cleaned immediately following any discharge or spill incident. Chemical storage: • Any chemicals stored in the construction areas will conform to the appropriate source control BMPs listed in Volume IV of the Ecology stormwater manual. In Western WA, all chemicals shall have cover, containment, and protection provided on site, per BMP C 153 for Material Delivery, Storage and Containment in SWMMWW 2005 • Application of agricultural chemicals, including fertilizers and pesticides, shall be conducted in a manner and at application rates that will not result in loss of chemical to storm water runoff. Manufacturers' recommendations for application procedures and rates shall be followed. Excavation and tunneling spoils dewatering waste: • Demolition: • • • Dewatering BMPs and BMPs specific to the excavation and tunneling (including handling of contaminated soils) are discussed under Element 10. Dust released from demolished sidewalks, buildings, or structures will be controlled using Dust Control measures (BMP Cl40). Storm drain inlets vulnerable to storm water discharge carrying dust, soil, or debris will be protected using Storm Drain Inlet Protection <BMP C220 as described above for Element 7). Process water and slurry resulting from sawcutting and surfacing operations will be prevented from entering the waters of the State by implementing Sawcutting and Surfacing Pollution Prevention measures (BMP Cl52). Concrete and grout: 11 • Stormwater Pollution Prevention Plan Process water and slurry resulting from concrete work will be prevented from entering the waters of the State by implementing Concrete Handling measures (BMP CISI). Sanitary wastewater: • • Solid Waste: Portable sanitation facilities will be firmly secured, regularly maintained, and emptied when necessary. Wheel wash or tire bath wastewater shall be discharged to a separate on- site treatment system or to the sanitary sewer as part of Wheel Wash implementation (BMP C106). • Solid waste will be stored in secure, clearly marked containers. Other: • Other BMPs will be administered as necessary to address any additional pollutant sources on site. As per the Federal regulations of the Clean Water Act (CWA) and according to Final Rule 40 CFR Part 112, as stated in the National Register, a Spill Prevention, Control, and Countermeasure (SPCC) Plan is required for construction activities. A SPCC Plan has been prepared to address an approach to prevent, respond to, and report spills or releases to the environment that could result from construction activities. This Plan must: • • • • • • • Be well thought out in accordance with good engineering; Achieve three objectives -prevent spills, contain a spill that occurs, and clean up the spill; Identify the name, location, owner, and type of facility; Include the date of initial operation and oil spill history; Name the designated person responsible; Show evidence of approval and certification by the person in authority: and Contain a facility analysis . 12 Stormwater Pollution Prevention Plan 3.1.10 Element #IO-Control Dewatering All dewatering water from open cut excavation, tunneling, foundation work, trench, or underground vaults shall be discharged into a controlled conveyance system prior to discharge to a sediment trap or sediment pond. Channels will be stabilized, per Element #8. Clean, non- turbid dewatering water will not be routed through stormwater sediment ponds, and will be discharged to systems tributary to the receiving waters of the State in a manner that does not cause erosion, flooding, or a violation of State water quality standards in the receiving water. Highly turbid dewatering water from soils known or suspected to be contaminated, or from use of construction equipment, will require additional monitoring and treatment as required for the specific pollutants based on the receiving waters into which the discharge is occurring. Such monitoring is the responsibility of the contractor. However, the dewatering of soils known to be free of contamination will trigger BMPs to trap sediment and reduce turbidity. At a minimum, geotextile fabric socks/bags/cells will be used to filter this material. Other BMPs to be used for sediment trapping and turbidity reduction include the following: • • • • • • • Concrete Handling (BMP Cl51) Temporary Sediment Pond (BMP C241) Construction Stormwater Chemical Treatment (BMP C250) Construction Stormwater Filtration (BMP C 251) Infiltration Use of a sedimentation bag, with outfall to a ditch or swale for small volumes of localized dewatering. Alternative BMP not included in the SWMMWW {2005} or SWMMEW (2004) Alternate dewatering control BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 13 Stormwater Pollution Prevention Plan 3.1.11 Element #11 -Maintain BMPs All temporary and permanent erosion and sediment control BMPs shall be maintained and repaired as needed to assure continued performance of their intended function. Maintenance and repair shall be conducted in accordance with each particular BMP's specifications. Visual monitoring of the BMPs will be conducted at least once every calendar week and within 24 hours of any rainfall event that causes a discharge from the site. If the site becomes inactive, and is temporarily stabilized, the inspection frequency will be reduced to once every month. All temporary erosion and sediment control BMPs shall be removed within 30 days after the final site stabilization is achieved or after the temporary BMPs are no longer needed. Trapped sediment shall be removed or stabilized on site. Disturbed soil resulting from removal of BMPs or vegetation shall be permanently stabilized. 3.1.12 Element #12 -Manage the Project Erosion and sediment control BMPs for this project have been designed based on the following principles: • • • • • • • Design the project to fit the existing topography, soils, and drainage patterns. Emphasize erosion control rather than sediment control. Minimize the extent and duration of the area exposed . Keep runoff velocities low . Retain sediment on site . Thoroughly monitor site and maintain all ESC measures . Schedule major earthwork during the dry season . As this project site is located west of the Cascade Mountain Crest, the project will be managed according to the following key project components: Phasing of Construction • The construction project is being phased to the extent practicable in order to prevent soil erosion, and, to the maximum extent possible, the transport of sediment from the site during construction. 14 Stormwater Pollution Prevention Plan • Revegetation of exposed areas and maintenance of that vegetation shall be an integral part of the clearing activities during each phase of construction, per the Scheduling BMP {C 162). Seasonal Work Limitations • From October I through April 30, clearing, grading, and other soil disturbing activities shall only be permitted if shown to the satisfaction of the local permitting authority that silt-laden runoff will be prevented from leaving the site through a combination of the following: o Site conditions including existing vegetative coverage, slope, soil type, and proximity to receiving waters: and o Limitations on activities and the extent of disturbed areas; and o Proposed erosion and sediment control measures. • Based on the information provided and/or local weather conditions, the local permitting authority may expand or restrict the seasonal limitation on site disturbance. • The following activities are exempt from the seasonal clearing and grading limitations: D D D Routine maintenance and necessary repair of erosion and sediment control BMPs; Routine maintenance of public facilities or existing utility structures that do not expose the soil or result in the removal of the vegetative cover to soil; and Activities where there is I 00 percent infiltration of surface water runoff within the site in approved and installed erosion and sediment control facilities. Coordination with Utilities and Other Jurisdictions • Care has been taken to coordinate with utilities, other construction projects, and the local jurisdiction in preparing this SWPPP and scheduling the construction work. Inspection and Monitoring 15 Stormwater Pollution Prevention Plan • All BMPs shall be inspected. maintained. and repaired as needed to assure continued performance of their intended function. Site inspections shall be conducted by a person who is knowledgeable in the principles and practices of erosion and sediment control. This person has the necessary skills to: o Assess the site conditions and construction activities that could impact the quality of stormwater. and D Assess the effectiveness of erosion and sediment control measures used to control the quality of stormwater discharges. • A Certified Erosion and Sediment Control Lead shall be on-site or on-call at all times. • Whenever inspection and/or monitoring reveals that the BMPs identified in this SWPPP are inadequate, due to the actual discharge of or potential to discharge a significant amount of any pollutant. appropriate BMPs or design changes shall be implemented as soon as possible. Maintaining an Updated Construction SWPPP • This SWPPP shall be retained on-site or within reasonable access to the site. • The SWPPP shall be modified whenever there is a change in the design. construction. operation, or maintenance at the construction site that has. or could have, a significant effect on the discharge of pollutants to waters of the state. • The SWPPP shall be modified if. during inspections or investigations conducted by the owner/operator. or the applicable local or state regulatory authority. it is determined that the SWPPP is ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site. The SWPPP shall be modified as necessary to include additional or modified BMPs designed to correct problems identified. Revisions to the SWPPP shall be completed within seven {7) days following the inspection. 3.2 Site Specific BMPs Site specific BMPs are shown on the TESC Plan Sheets and Details in Appendix A. These site specific plan sheets will be updated annually. 16 Stormwater Pollution Prevention Plan 3.3 Additional Advanced BMPs • The following BMPs are advanced and are only recommended if construction activities are complex enough to warrant them; or if the site has the potential for significant impacts to water quality. The following BMPs are directed at "end-of-pipe" treatment for sedimentation issues related to turbid runoff from construction sites. Effective BMPs are most often the simple BMPs, and focus on the minimization of erosion before sedimentation is an issue. The following BMPs will most likely be implemented only after other BMP options are exhausted. or if the construction activity is large and off-site sedimentation or turbid runoff occurs or is inevitable. • BMP C250: Construction Stormwater Chemical Treatment • BMP C25 l: Construction Storm water Filtration. 4.0 Construction Phasing and BMP Implementation The BMP implementation schedule will be driven by the construction schedule. The following provides a sequential list of the proposed construction schedule milestones and the corresponding BMP implementation schedule. The list contains key milestones such as wet season construction. The BMP implementation schedule listed below is keyed to proposed phases of the construction project, and reflects differences in BMP installations and inspections that relate to wet season construction. The project site is located west of the Cascade Mountain Crest. As such, the dry season is considered to be from May 1 to September 30 and the wet season is considered to be from October I to April 30. The BMP implementation schedule listed below is keyed to proposed phases of the construction project, and reflects differences in BMP installations and inspections that relate to wet season construction. The project site is located east of the Cascade Mountain Crest. As such, the dry season is considered to be from July I to September 30 and the wet season is considered to be from October I to June 30. • Estimate beginning of construction: 4/2008 • Estimate end of construction: 10/2008 • Install ESC measures: 4/2008 • Begin clearing and grubbing: 4/2008 • Demolish existing structures: 5/2008 17 Stormwater Pollution Prevention Plan • Excavate for new utilities: 6/2008 • Install storm drainage vault: 7/2008 • Grade proposed road: 7/2008 • Construct road and sidewalks: 8/2008 • Install landscaping features and grass seed: 9/2008 • Remove temporary ESC measures and clean vault: 10/2008 • Construction complete: 10/2008 5.0 Pollution Prevention Team 5.1 Roles and Responsibilities The pollution prevention team consists of personnel responsible for implementation of the SWPPP, including the following: • • • • Certified Erosion and Sediment Control Lead (CESCL) -primary contractor contact, responsible for site inspections (BMPs. visual monitoring, sampling, etc.); to be called upon in case of failure of any ESC measures. Resident Engineer -For projects with engineered structures only (sediment ponds/traps. sand filters, etc.): site representative for the owner that is the project's supervising engineer responsible for inspections and issuing instructions and drawings to the contractor's site supervisor or representative Emergency Ecology Contact -individual to be contacted at Ecology in case of emergency. Emergency Owner Contact -individual that is the site owner or representative of the site owner to be contacted in the case of an emergency. • Non-Emergency Ecology Contact -individual that is the site owner or representative of the site owner than can be contacted ifrequired. • Monitoring Personnel -personnel responsible for conducting water quality monitoring; for most sites this person is also the Certified Erosion and Sediment Control Lead. 18 Stormwater Pollution Prevention Plan 5.2 Team Members Names and contact information for those identified as members of the pollution prevention team are provided in the following table. Title Name(s) Phone Number Certified Erosion and Sediment Control Lead (CESCL) Cheryl Girard (425) 837-8083 Resident Engineer Cheryl Girard (425) 837-8083 Emergency Ecology Contact Not applicable Not applicable Emergency Owner Contact Harry Bapla (206) 478-0633 Non-Emergency Ecology Contact WSDOE (800) 826-7716 Monitoring Personnel Not applicable Not applicable 6.0 Site Inspections and Monitoring Monitoring includes visual inspection, monitoring for water quality parameters of concern, and documentation of the inspection and monitoring findings in a site log book. A site log book will be maintained for all on-site construction activities and will include: • A record of the implementation of the SWPPP and other permit requirements; • Site inspections; and, • Storm water quality monitoring . For convenience, the inspection form and water quality monitoring forms included in this SWPPP include the required information for the site log book. This SWPPP may function as the site log book if desired, or the forms may be separated and included in a separate site log book. However, if separated, the site log book but must be maintained on-site or within reasonable access to the site and be made available upon request to Ecology or the local jurisdiction. 6.1 Site Inspection All BMPs will be inspected, maintained, and repaired as needed to assure continued performance of their intended function. Site inspections will be conducted by a person who is knowledgeable in the principles and practices of erosion and sediment control. The onsite inspector will have the skills to assess the potential for water quality impacts as a result of the type of construction activities occurring on site, and the knowledge of the appropriate and effective ESC measures needed to control the quality of storm water discharges. 19 Stormwater Pollution Prevention Plan All BMPs will be inspected, maintained, and repaired as needed to assure continued performance of their intended function. The inspector will be a Certified Erosion and Sediment Control Lead (CESCL) per BMP Cl 60. The name and contact information for the CESCL is provided in Section 5 of this SWPPP. Site inspection will occur in all areas disturbed by construction activities and at all stormwater discharge points. Stormwater will be examined for the presence of suspended sediment, turbidity, discoloration, and oily sheen. The site inspector will evaluate and document the effectiveness of the installed BMPs and determine if it is necessary to repair or replace any of the BMPs to improve the quality of storm water discharges. All maintenance and repairs will be documented in the site Jog book or forms provided in this document. All new BMPs or design changes will be documented in the SWPPP as soon as possible. 6.1.1 Site Inspection Frequency Site inspections will be conducted at least once a week and within 24 hours following any rainfall event which causes a discharge of storm water from the site. For sites with temporary stabilization measures, the site inspection frequency can be reduced to once every month. 6.1.2 Site Inspection Documentation The site inspector will record each site inspection using the site log inspection forms provided in Appendix E. The site inspection log forms may be separated from this SWPPP document, but will be maintained on-site or within reasonable access to the site and be made available upon request to Ecology or the local jurisdiction. 6.2 Stormwater Quality Monitoring The construction site does not discharge to an impaired water body, and is therefore not subject to the general water quality monitoring requirements set forth in the 2005 Construction Storm water General Permit (Appendix D). 6.2.1 Turbidity Sampling (if necessary) Sampling and monitoring for pH will occur during the phase of construction when concrete pouring will be conducted until fully cured (3 weeks from pour). Samples will be collected weekly at the sedimentation pond prior to discharge to surface water. Samples will be analyzed for pH using a calibrated pH meter and recorded in the site log book. The key benchmark pH value for stormwater is a maximum of 8.0. If a pH greater than 8.0 is measured in the sedimentation pond that has the potential to discharge to surface water, the following steps will be conducted: 20 Stormwater Pollution Prevention Plan l. Assess whether additional BMPs should be implemented and whether associated revisions to the SWPPP are necessary 2. Stop ( detain} all discharges from leaving the site and entering surface waters or storm drains if the pH is greater than 8.5 3. Sample sedimentation pond the following day. and if the pH exceeds 8.0 for the second consecutive day. implement CO2 sparging treatment 4. Sample and measure pH daily until there are 3 consecutive pH measurements less than 8.0. 5. If there are 3 consecutive pH measurements greater than 8.0. notify Ecology by phone within 24 hours of the 3rd measurement exceeding a pH of 8.0 {see Section 5.0 of this SWPPP for contact information) and initiate discussions with Ecology regarding additional treatment BMPs. 6. Describe inspection results and remedial actions that are taken in the site log book and in monthly discharge monitoring reports as described in Section 7.0 of this SWPPP. 7.0 Reporting and Recordkeeping 7.1 Recordkeeping 7 .1.1 Site Log Book A site log book will be maintained for all on-site construction activities and will include: • • • A record of the implementation of the SWPPP and other permit requirements; Site inspections; and, Stormwater quality monitoring . For convenience, the inspection form and water quality monitoring forms included in this SWPPP include the required information for the site log book. 21 Stormwater Pollution Prevention Plan 7.1.2 Records Retention Records of all monitoring information (site log book, inspection reports/checklists, etc.), this Storm water Pollution Prevention Plan, and any other documentation of compliance with permit requirements will be retained during the life of the construction project and for a minimum of three years following the termination of permit coverage in accordance with permit condition S5.C. 7.1.3 Access to Plans and Records The SWPPP, General Permit, Notice of Authorization letter, and Site Log Book will be retained on site or within reasonable access to the site and will be made immediately available upon request to Ecology or the local jurisdiction. A copy of this SWPPP will be provided to Ecology within 14 days of receipt of a written request for the SWPPP from Ecology. Any other information requested by Ecology will be submitted within a reasonable time. A copy of the SWPPP or access to the SWPPP will be provided to the public when requested in writing in accordance with permit condition SS.G. 7.1.4 Updating the SWPPP In accordance with Conditions S3, S4.B, and S9.B.3 of the General Permit, this SWPPP will be modified if the SWPPP is ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site or there has been a change in design, construction, operation, or maintenance at the site that has a significant effect on the discharge, or potential for discharge, of pollutants to the waters of the State. The SWPPP will be modified within seven days of determination based on inspection(s) that additional or modified BMPs are necessary to correct problems identified, and an updated timeline for BMP implementation will be prepared. 7 .2 Reporting 7 .2.1 Discharge Monitoring Reports Discharge Monitoring Report (DMR) forms will not be submitted to Ecology because water quality sampling is not being conducted at the site. 7.2.2 Notification of Noncompliance If any of the terms and conditions of the permit are not met, and it causes a threat to human health or the environment, the following steps will be taken in accordance with permit section SS.F: I. Ecology will be immediately notified of the failure to comply. 22 2. Stormwater Pollution Prevention Plan Immediate action will be taken to control the noncompliance issue and to correct the problem. If applicable, sampling and analysis of any noncompliance will be repeated immediately and the results submitted to Ecology within five (5) days of becoming aware of the violation. 3. A detailed written report describing the noncompliance will be submitted to Ecology within five (5) days, unless requested earlier by Ecology. Any time turbidity sampling indicates turbidity is 250 nephelometric turbidity units (NTU) or greater or water transparency is 6 centimeters or Jess, the Ecology regional office will be notified by phone within 24 hours of analysis as required by permit condition S5.A (see Section 5.0 of this SWPPP for contact information). In accordance with permit condition S4.F.6.b, the Ecology regional office will be notified if chemical treatment other than CO2 sparging is planned for adjustment of high pH water (see Section 5.0 of this SWPPP for contact information). 23 Stormwater Pollution Prevention Plan Appendix A -Site Plans 24 i ' ;I ,, ;,I ~- i' ~-I (. ~I l ~I i1 I N ' GRAPHIC SC..U " l " ~ I IMO< •W n ~ I i ~ --------• ·-·-· --- SE 1/4, NE 1/4, SEC 32,TWN23N,RGE 5E, W.M. ------• --CIIIAllC ca,llOIJRS 0 ·---- ii ~·-so: D£1111.. !iHEl:T C• § -.. =- ,,,...____ -- ---•i IKD: Q1ECI( 11,W SO: DCTM.S 1IET et D ,.;, ;1 ,<, ~I ~, I I I ' I L Sil. T rENCE. SU: _c_lll..MnC4 ..... •-----.-- """:~1 r:·~ _J_ ~ . .J~fdi~?: ~~ ~-" • ...a'. UN[ kl FP1CL S£l DC'llil. SHEE1 C4 j j j I I fRQ30N AND SEPIMOO CONTRQ NOJD :::::"rl-3-":l.: (r.:. ~ ~J~~s.~t'°.I,J~= :::~:.,g.,wN«.Hl r/r4JTIU. U1ll.ff£S. [TC J. 1H[ IIIFl\nlENTAbOI< Of 1t£SC UC l'\.Ml5 -1K CONS11lUC1ION. WAHIDwlCE. flE:f'V«IIOl1. 11ND IJP(lR,',DN(; Of M1C EK f...a.Jll(S IS THE 11£SP01$1111JT'r Of lH[ N'f'UC/INTJn(: ~ .... n. H.l. COHSTRVC1lON IS ""'""' 3 lttE IIC)JN(loll!CS Of M ClfNlloQ I.MTS 5"()111 11'1 114$ Pl.,VI 5HA1.1. BC Q.Ll,,RLT .<lMIGa! 11T A C<WJMH!US t.fJfC1H Of -\C'r TAP[ (Clft FDO'lt, ,-IICQUl![ll) ~ lO C~. ()URROI; 'JH[ ct,l51AUC11Cf,j f'ERIOO. NO DIS"-"BAl!a: BCT!INJ TH[ CU-Ullfl$ SHM.L Ill ~ 1Hl ~G lMTS SHIU 9E ro,_..TAINCD 1Y 1HC ~/[SC ~ !"OR rHt DURMIIIII Of COl<S'l!IUCtlllN lHC 1st flrl(aJ1113 9fO'lltl 11'1 lttlS Pl.,\N IIIUSl IC COIS1l!uClED Pll(lll: lO OR IN~ NTH H.l. ~ NtD c,tMllN(. SO AS TO DISUltE lMo\T flll ffl#S"Qlll Of SED!NEkl 10 9.IRF"ACC MTEJIS DR-AG( 5"$lDIS, 11ND AllJACtMT PIICPDl11E$ IS ~ ' 1"C E$C fACIIJ1e SlfO'IIH ON 1HIS PlNI NI£. M: --M:CUIIIOIEtlTS rort MllOPA1[D 51lE CCMIITlCKS. 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TKE PIIOf'OS!llo IIE~ co,isns OF 1' 7-lOT 9IQRl Pl.AT, ~~:.g~~~~t.:::u~~~[~ COlil8IMEO ST-AlDI Cl[lDIIIQH MO lfl(AllDIT 'f~l WU. E ¢OH5lll!!ICTm 1H ff NCflTll[AST Q)lilHOt Of 1HE !lllt. N:W SANll,JIT, n.ECNCAL, CU.S IHJ Sl(IIII llflNH UllUll[S 'MU Al.SO IE CONSm.JClUl I . "" I I I _J NOTE:: KING Ct\lffl'I' DOCS APPROVAL IS fOf< STORM AND ROAO IMPR0'-£MENT5 ONLY AS SHOWIN HEREON. CONSTRUCTIQN SWf'PP REVIEW ---~· KING COUNTY O.D.LS, ......,;w,;.;: --- i.wti11.WPL ---- _ ..... c-,ioh,1--- SITE VOLUME CALCULATIONS CUT VOLUME FILL VOLUME NET \/Olut,tE VMJL T CUT I ; t l 1 E ::, ... It! C 0 Q,) I.!) "~ ;2 ~~~ •• o ~~"i' ~.':::; ~~ ~ ON -~!!. ~ ~1-1 " 1 I 1 ~ ; ; I I ! 11 " " i j ~, ~ i . " z < ~ ~ F z ~ .., [ I- <IS Ill"' -' F ,o a..::,~5l 1-d <"' 0,: 0.. < o" ~3' ::c I!! "' • Vl < -z 3' -12 :i: ~ ;;; 5 -' "' " < .... -::; "' ~ u ::, l!c "' s u § "' ~ .., .... 0 " "' t=; -' ! ' i • i i f ~ ... (CU. YOS.) {CU. '1t1S.) (CU. YOS.) (CU. '1:IS.) !I I ORl<HER: PG/cDM Sl2 <131 101 CUT 1,200 CUT DESIGNER: PG "N..L VOL.LIMCS AAE APf'RO)(lt,1,1, TE AND REPRESENT flN!SH ~ADE TO EltlSllNG CRADE AS SM~. TI£ VOLUMES DO NOT INCLUOE STRIPPING, S1RUC1UR.6J. EXCAV,1,TION. EXPANSION F,1,Cl'OR OR >.NY SOIL TYPE RESTRICllONS TliE FILL \!Cl.UMES HAVE INCLUDED A 10X TO COhlPACTION FACTOR". PROJ. ENGR./SIJRV. MXP DATE: 1-29-06 PR0.£CT NO.: 05294 """' C3 "' 11 1 n,:;c:nnni:,. ' ' . , e, " §' •' •I ~: ij • l, ii i' 8~ 11-0"''0 t"1--'""'~"'C, 1\$ PER KING COUNTY ROAD STANDARDS, ORIVEWAYS SH"LL BE PAV£D TO THE [OGE Of R-0-W PRIOR TO INSTALLATION Of THE Cct,1STRIJCTION ENTRANCE TO A~O Q,t,MAGlNG Of" THE RQ,t..OWAY R ~ 25' IT IS Re:CQMM[NOEO THAT THE ENTRANCE SE CROWNED SO THAT RUNOFF Cf;!,'.tNS OfT THE P/IO 4" -8" OUI\RllY SP"'LLS - GEOlEXTILE 12" MIN ) JEMPABMY GRA\fl Cctl:SJRI/CDQN PiJRANC% -~ JOINTS IN FILTER fABAIC SHALL Bt SPLICED t&Jj~~rufo !~~~5i,_:~c"{i~o~s 6° MIIX. / POST Sf>#,,QNG MAY BE INCREASED TO 8' If WIRE 8ACl(INC IS USED FlLTCR FAl!fllC- 2"~4• W000 POSTS: STEEL F[NC£ NOlE: flLlER FABflJC FENCES SHAL.l. BE POSTS, REBAR, DR EQUIVALENT INSTALLED ALONG CONTOUR 'MiENEll'ER POSSIBLE SLJ ~ POHL SU I EEHct NQJES· 1. SEE ADJACENT DETAIL J0--100 SIE\IE SIZE FOR SILT FILM 2. lH[ GEOTE)(l\L[ USED MUST MEET lHE FOLLOWING SPEClnt,.llOHS· MIN -1 ~ " 2 • ~ (>.SN 0-4751) 50-100 S1E\ot: SIU FOR OlHER FABRICS WATER P(RMITTIVIT'I' {ASTM 0--091) 0.02 src Gfl.l,fl lENSU STRENGlH (ASTM D-~32) 180 L8S MIN. FOR EXTRA SlRENGlH F"BRIC GR.118 lENSILE ELCJIIGl\llON (ASN D-~32) 100 LBS PER MINUTE STANDARD STRENGlH FABRIC ULlRAVIOLET RESISTANC[ (ASTM D-4355) 30:1 MAX. A COPY Cf" THE MANIJFACl\lROlS' FABRIC SPEOflC,.Tl()NS MUST BE AVAILA8LE ONSITE 3. STAND ARO STR£NGlH FABRIC REOUIRES WRE BACl<ING TO INCREASE lHE STRENGTH Of Tl-IE FENCE. WIRE. BACKING OR a.OSER POST sPACIHG MAY BE REOLJflED FOR EXTRA STI!ENGlM FABRIC If FIELD PERFORMANCE WARR,'HTS ,. ST'10t11GER FDICE. 4. 'M€f!£ lli£ FENCE IS INST N..LEO, THE SI..OPE SHALL BE NO STEEPER lH ....... 2H:1V. ~s r~~=~ING: l~c:~~+ :":e.;:; L °""'"0 "1 r- r- POROUS Bono,;/ 1NS£RI NOJ£$· " ~~~IS ~\A11N~f1~Y Al.LOW[() 1 %.iAT HAS A MIN. o., IC F. IR S~A~ THE ME,.NS TOD! W\ ~ ot.<E'fJR. EO -'ND ~N 8 ~l,.SIL Y 1.VJNT~EO. I) MIY ACC\JMUU.T[D SE.DIM[Nl ON OR I.ROUND lME FILTER FABRIC PROltCTlotl SliALL BE REWO\/ED IMMEOIAltLY. SE.OOil[NT SHALL NOT BE Fl[MOV([I WllM WATER, ANO ALL SEDIMENT MUST BE DISP0S£0 OF IIS FILL ON Sil[ OR HAULED Off Sil( 2) /\NY SCOOENT IN lME CAT01 BASIN INSERT SHALL BE REMOVED -..tEN TME S(D&ENT HAS FILLED ONE-lHIRO Of TH£ l,.VIIILABLE STORl,.GE J) THC Fll.lER MEDIA FOR THE INSERT SHAU BE Ci..!ANEO OR REPLACED AT l.El,.ST MONM.Y. CATQ# EAS!N /NUT CROSS-SfCDQN "' SE 1 /4, NE 1 /4, SEC 32, TWN 23N, RGE 5E, W.M. 495.0 SURfACE AREA 0£1ERMINEO A1 TOP Of" W[IR _,,___l_J_ EL = 498.50± -~± ,;,·-,s \ \ & JH:,V MAX J.5'-5' WASHED GRA .. U 2"-4" ROCK RIPRAP 1 FlAl BOTIOM 1.5' t.llN. GEOTEXTil.f NO"TE: TRAP t.lJ.Y BE FORMED BY BERt.1 OR BY PARTIAL CR COMPLElE EXCAVATION DISCHARGE TO ST "81LJZED CONV£YANC[, OUTLET OR LE\'EL SPREADER SfPHNI rue ,~ 1' MIN. L£V[L eon ow 2 = 1 MAX. SLOPE -~..-, I .I .• ,,I . SWALE SPACING DEPENDS ON SLOPE @..btNT MA!NJfNANC£ STANDARDS" 1. Oil.MAGE RESUI..TING FROM RUNC:ff DR CONSlRUCllON I\CTl~TI SHALL BE REPAJR(O 1MMEDl,.T£LY 2. IF THE FI\CIUllE:S 00 NOT RE:GULAALY RET,.IN STOAI.I RUNOF"f", THE CA.PI\CITY ANO/OR FREQUENCY Of" THE Oll<ES/SW,'ILES SHI\U BE INCREASED INTfBOCPJff SWN-f ROCI< MUST COMF'l.Elll Y COll'ER lME BOTIOM /\NO SIOES U 1HE DITCH &" MIN T 24" MIN 1 Q:IECk PAM 11 f<"» SFCDQH 2: 1 .. L '"' n1E OIST,i,NC[ SUCH lH,.T POINTS A ANO B ARE Of EQUAL ELE\11,.TlON Q1fCtC QAY OEIM ,~ YNtOt:NANa Of 511 TADQN BABB1fR$· 1 SILTATION e,.RRIERS SHALL BE INsPECTEo lMMEOIATELY AFTER EACH RI\INfl\1.L -'ND AT LEASl DAILY Qvi;ilNG PROl..~GEO RIIINFALl. CLOSE IITITNTION SHALL BE P/110 TO TtiE. R[PIIIR Of" DAMAGED BALES. END RUNS ANO UNDERCUTTING BENEATH BIil.ES. NECESSARY REPAIRS TO B~l[RS OR REPLAC(t,tENT or BIil.ES SHALL BE ACCOMPLISHED F'R(JMPTL Y. SEDll,l[N1 DEPOSITS SHOJLO BE REt,tO\l[Q AFTER EACH RAil'lfALL. THEY MUST BE REMO YEO "IIHEN TiiE LEVEL Of DEPOSITION REl,.CHES APPROXII.IATEL Y ONE-HALF. lH[ HEIGHT OF Tl-IE BARRIER. ANY "SEOlhlENT DEPOSITS REMAININC IN PLACE ,.FT[R TME STR,.W BALE BARRIER 1$ NO LONGER R(OlJIRED SHIILL BE DRESSED 10 CONFORM 10 Tt1E EXISTINC GRl,.D(. PR[Pl,.REO ANO SEEDED 1 FENCING SHN..L BE INST Al.LED 1,.5 NECESSARY TO RESTRICT TR.IIFTIC TO lHE CONSTRUCTION ENlRANCE. 2. IIIHENE'IER POSSIBLE, Tl-IE ENTRANCE SHALL 8E CONSTRUCTED ON A flRhl, COMPACTUJ 9.JB(;Rl,.DE THIS CAN SUBSTANTIALLY INCRE,.SE Tl-IE EFfECTI\ot:NESS OF ni[ PAO ANO REOUCf THE NEED FQR MAINTENANCE INSTALLATION: Tl--lE AREA Of TH£ ENTRANCE SHOULD BE CLEARED OF ALL ll'ECE.T,.TlON. ROOTS. ANO OTHER OB.ECTIONABLE MAl£RlALS. THE GRAll'EL SH/ILL BE PLACED TO THE SPECIFIED DIMENSIONS. ANY DRAINAGE FACILITIES REOOIRED BECAUSE or WASJilNC SHQIA.D BE CONSlRUCTEO ,.CC(:f!OING TO SPECIFICATIONS IN THE PLAN. IF WASH RACKS ARE USED. lH[Y SHOOLO BE INSTAU.ED ACCOF!OlNG TO MANUFACTURER'S sPECFICATIONS. 4. GEOT[l(Tll.E: A GRAB l[NSIL STRENGlM (1,.STM D 051) 200 PSl Mit, B. GRAB TENSIL ELONGATION (.IISTM D "'6:l2) JOX MAX. C. MIJLL[N BURSl STI1£NClM {ASTM O 37S6-8DA) 400 PSl NIN 0. AOS (ASTM D 4751) 20-45 (US STD SIEV[ SIZE). 5. AGCRCGATE: 4" TO 6" CRUSHED BAil.AST ROCK. 0V[R FILTER FABRIC 6. ENTRANCE DIMENSION$.: lME AGGREGATE LAYER MUST BE AT LEAST 12 INCHES THICI<.. !T MUST El(TENO THE fU.L WIDTI--1 or lME \/EHICIA...#J< INGRESS 1,.NO EGflESS AREA. THE LENGlH OF THE ENTRANCE MUST BE AT lEl,.$.T 100 Ft:ET. 7. WASHING: If C0N0l"fl0NS ON Tl-IE SITE ARE SlJOf THAT MOST Of lHE MUD IS NOT REMO\JEO FROlil lJEHICLE TIRES BY CONTACT lllllH lHE Gfl.,.\ot:L. lMEN THE TIR(S MUST BE WASHED BEFORE \IEHICI..ES ENTUI A PUBLIC ROAD. WASH WATER MUST BE CARRl[tl AWAY fROM ElflRI\NCE TO A SETTLING AREA TO REMO\'{ stolMENT. A W~ RAO< MAY Al.SD 8E USED TO MAKE WASHING MOR[ CONll'ENtCNT AND ErrECTllJE. REOLIIR[O DURING WINTER CONST'1l1Cl10N. 8 MAINTENANCE: THE ENTRANCE SHAil. BE MAINTAIN[O IN A C0ND1l10N W/"'IICH \111Ll PRE\€:NT TJll,.Cl(INC OR FLOW OF MUD ONTO PIJBUC RICHT-Of-WA'l'S. THIS MAY REOOIRE PERIOOIC TOP DRESSING WIT\--1 2-INCH STONE. AS CONDITIONS DEMAND, -'HD REP.AIR N'O/OR CLE,.... OUT /\NY STRUCTURES US[D TO TRAP SCOIM[NT. ALL M,.TERIALS SPIL.l.!O, OROl"PEO, WASHED OR TRACl<EO FROM \ot:t11Cl[S ONTO ROADWAY DR JNTO STORM DRfJNS MUST BE REMO\IED IMM[CNATELY. EBPSQN AHO SfDNfNJ cct!JROI Bf«NYOIPfD Cfti5JR:UCDPN SEQUENCF 1. l'flE-CCINSTRUCTIQN MEETING 2. POST SICN 'MTH NAME ANO PHQt<I[ NUMBER or ESC SIJPERVISOl'i (MAY BE CONSOLIDATED WITH Tl-I[ REOLJIRED NOTICE OF CONSTRUCllON SIGN) 3. Fl.AG OR f"ENCE CLEAAING LIMITS 4. INSTALL CAT01 BASIN PROTECTION IF R£QLJIREO 5. Gfl."1)[ ANO INSTALL CONS1RUCT1Cfll [NlR,....CE 6. INSlALL PERIIAETER PAOTECTION(SILT FENCE, BRUSH BARRIER, ETC) 7. CONSTRUCT SEDIMENT PONDS AND TRAPS 8. GRADE AND STABIUZE CONSTRUCTION R0...0$. 9. CONSTRUCT WATER CONTROLS (INTERCEPTCfl Oll<ES, PIPE SLOPE ORIIINS, ETC}SIMULT-'HKXISt.Y WITH a..£ARING AND GRADING FOR PROJECT DEVELOPMENT 10 MAINTAIN EROSION CONTROL IAEA9JRES IN ACCORDANCE WllM IIIN(; C()JNT',' ST-'HDAAOS AHO MANUF,.CTIJRE.RS RECOlilM(NOl,.TIONS ,1. RELOCATE EROSION CONTJIOL MEASIJRES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANCE THE EltOSICN AND SE.Olil[NT CONTROL IS ALWAYS IN ACCOROIMCE WITH Tl-IE l<ING COUNTY EROSION ANO SEOIMENl CONTROL STANDARDS 12 C011Efl ALL AREAS lMAT \111LL BE ~WOR,,;ED FOR WORE lH,i,N SE.\€:N DAYS DURING TH[ ORY SE.IISON OR TWO DAYS DURING THE WET SEASON 'MTH STfl,.W, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING DR EOUIVALENT lJ STAEIUZE ALL AREAS THAT REACH FlNAL GRADE WTHIN SEll'EN DAYS 14. SEED OR SOC AHY AREAS TO REMAIN UN~EO FOR MORE lHAN 30 DAYS 15. lFOl'I COMPL.£TION OF lME PRO.ECT, ALL DISTURBED AREAS MUST BE STABILIZED l,.NQ BMP'S REMOVED IF IIPPRQPR1Al[. SlRllCDfflN N0JtS 1. lHESE Pl-'HS ARE APf'RO\fil FOR STl,.NDARD RO...O ANO DRAIN.AGE IMPROVEMENTS QNl.Y. PLANS FOR STRUCTURES SUOl AS BRIDGES, VA\A.TS, AND RETMtNG WALLS R[OJIRE SEPMl:1,.TE REVIEW i\NO APPROVN.. BY OOES PRICA TO INSffiUCTlON. (IC'.CC 16.04.16.70, 14.20) 2. RCICl<tRIES AAE CONSIOUIED TO BE A METHOD OF BANIC'. STABIUZ,.TlON AND EROSION CONlRO... ROCll(RIES SHALL NOT BE CONSTRUCTED TO SER\'{ AS R[l,l,INJNG WAI.LS A1..L ROCl<ERIES IN COUNTY R()AO RIGHT-U-W,.Y SHAU BE CONSTRUCTED IN ACCORDANCE 'MTI--1 !((RS. ROCl<ERlfS OUTSIOf OF lHE RO.AO RIGHT-Of-Wl,.Y SHALL BE C()NSTRUCTED IN ACCORDANct \MlM lHE INTERNATIONAL 8Lllt..OING COO[ NOTE: !<ING COONTY ODES APPROVAL !S FOR STORM ,.NO ROI\O IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY 0.0.E.S. ~ -,~ .. Doi• s.,,i., E...,_ -f ~-0.0• ~~-llff'f'<OVN..Dst, c_,,,.,,. t ! 1 E :s ... tO 0 0 QI C, ·-~i: ~;~ ~ ·-2~~ ~""' 5': l:;a -~- \~ fl ill ~fif-A1 I ~ I I I I 1 !1 i : I I · ! ! t 1 1 ! ~ I ~111 I I ~ ~ ~ 0 0 z I-< :s n. l-o:: 0 ill 3 < :::;: "' w w "' ,-"' "' 0 •O z ~ co c:l < '" l!c j!c ~ z "' . o-z <.) -0 -,-z -z O "' w -., 0: ~ - 15 j a: ~ DRl,.FTER: PG/COM DESIGNER PG ~ 0 0: "' § i C ! ' 1 i f ~ " PROJ. ENGR.jSURV.: MXP D,. TE: i-29-oe PROJECT NO,: 05294 SHEET C4 or ,, r rn:;c:nnni:; VICINITY MAP SE 't76rh S! " "' ' Sf ~t·~· s :· ' St l!!lit>!" s Sf 1i"Jbt', ~" • t ,, ~- ~ 1 !r' ~ • C I t:; $f-,,.,,,Cl<.l ~ ; :: .. ~ r ~ ~ i 25 Stormwater Pollution Prevention Plan sr ,Ni~, p, .. SE Ul2nd St ~ :. Stormwater Pollution Prevention Plan Appendix B -Construction BMPs Stake and Wire Fence (BMP CI04) Stabilized Construction Entrance (BMP CI 05) Sediment Trap (BMP C240) Temporary Sediment Pond (BMP C241) Detention / Water Quality Vault Silt Fence (BMP C233) Storm Drain Inlet Protection (BMP C220) 26 Stormwater Pollution Prevention Plan Appendix C -Alternative BMPs The following includes a list of possible alternative BMPs for each of the 12 elements not described in the main SWPPP text. This list can be referenced in the event a BMP for a specific element is not functioning as designed and an alternative BMP needs to be implemented. Element #1 -Mark Clearing Limits Element #2 -Establish Construction Access Element #3 -Control Flow Rates Element #4 -Install Sediment Controls Advanced BMPs: Element #5 -Stabilize Soils Element #6 -Protect Slopes Element #8 -Stabilize Channels and Outlets Element #10 -Control Dewatering 27 Stormwater Pollution Prevention Plan Appendix D -General Permit 29 Stormwater Pollution Prevention Plan Appendix E -Site Inspection Forms (and Site Log) The results of each inspection shall be summarized in an inspection report or checklist that is entered into or attached to the site log book. It is suggested that the inspection report or checklist be included in this appendix to keep monitoring and inspection information in one document, but this is optional. However, it is mandatory that this SWPPP and the site inspection forms be kept onsite at all times during construction, and that inspections be performed and documented as outlined below. At a minimum, each inspection report or checklist shall include: a. Inspection date/times b. Weather information: general conditions during inspection, approximate amount of precipitation since the last inspection, and approximate amount of precipitation within the last 24 hours. c. A summary or list of all BMPs that have been implemented, including observations of all erosion/sediment control structures or practices. d. The following shall be noted: 1. locations of BMPs inspected, 11. locations of BMPs that need maintenance, 111. the reason maintenance is needed, iv. locations of BMPs that failed to operate as designed or intended, and v. locations where additional or different BMPs are needed, and the reason(s) why e. A description of stormwater discharged from the site. The presence of suspended sediment, turbid water, discoloration, and/or oil sheen shall be noted, as applicable. f. A description of any water quality monitoring performed during inspection, and the results of that monitoring. g. General comments and notes, including a brief description of any BMP repairs, maintenance or installations made as a result of the inspection. h. A statement that, in the judgment of the person conducting the site inspection, the site is either in compliance or out of compliance with the terms and conditions of the SWPPP and the NPDES 30 Stormwater Pollution Prevention Plan permit. If the site inspection indicates that the site is out of compliance, the inspection report shall include a summary of the remedial actions required to bring the site back into compliance, as well as a schedule of implementation. 1. Name, title, and signature of person conducting the site inspection; and the following statement: "I certify under penalty oflaw that this report is true, accurate, and complete, to the best of my knowledge and belief'. When the site inspection indicates that the site is not in compliance with any terms and conditions of the NPDES permit, the Permittee shall take immediate action(s) to: stop, contain, and clean up the unauthorized discharges, or otherwise stop the noncompliance; correct the problem(s); implement appropriate Best Management Practices (BMPs), and/or conduct maintenance of existing BMPs; and achieve compliance with all applicable standards and permit conditions. In addition, if the noncompliance causes a threat to human health or the environment, the Permittee shall comply with the Noncompliance Notification requirements in Special Condition S5.F of the permit. Project Name: Inspector Name: Date: Inspection Type: Weather Site Inspection Form General Information Tide: CESCL#: Time: o After a rain event o Weekly o Turbidity/transparency benchmark exceedance o Other Precipitation Since last inspection In last 24 hours Description of General Site Conditions: Inspection ofBMPs Element 1: Mark Clearing Limits BMP: Location Inspected y N 31 Problem/Corrective Action BMP: Location Inspected Functioning YN IYNNIP Element 2: Establish Construction Access BMP: Location BMP: Location Inspected y N Functioning IYNNIP Inspected Functioning YN IYNNIP Element 3: . Control Flow Rates BMP: Location BMP: Location Inspected y N Functioning IY N NIP Inspected Functioning YN IYN NIP Element 4: Install Sediment Controls BMP: Location BMP: Location Inspected y N Inspected y N Functioning IY N NIP Functioning !YININIP1 32 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action BMP: Location Inspected Functioning YN IYNNIP BMP: Location Inspected Functioning YN IYN NIP BMP: Location Inspected Functioning YN IYN NIP Element 5: Stabilize Soils BMP: Location BMP: Location BMP: Location BMP: Location Inspected y N Inspected y N Inspected y N Inspected YN Functioning IYNNIP Functioning IYN NIP Functioning \YN NIP Functioning IYININIP1 33 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action EE Element 6: Protect Slopes BMP: Location Inspected Functioning Y N IY N NIP BMP: Location Inspected Functioning YN IYN NIP BMP: Location Inspected Functioning YN IYN NIP Element 7: Protect Drain Inlets BMP: Location Inspected Functioning YN \YNNIP BMP: Location Inspected Functioning YN \YN NIP BMP: Location Inspected Functioning YN \YNNIP Element 8: Stabilize Channels and Outlets BMP: Location Inspected Functioning 34 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action YN IYNNIP BMP: Location Inspected Functioning YN [YN NIP BMP: Location Inspected Functioning YN IYN NIP BMP: Location Inspected Functioning YN IYN NIP Element 9: Control Pollutants BMP: Location BMP: Location Inspected y N Functioning IYNNIP Inspected Functioning YN IYN NIP Element JO: Control Dewatering BMP: Location BMP: Inspected YN Functioning IY N NIP 35 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Stormwater Pollution Prevention Plan Location Inspected Functioning YN IYN NIP Problem/Corrective Action BMP: Location Inspected Functioning YN IYN NIP Problem/Corrective Action Stormwater Dischanrns From the Site Observed? Problem/Corrective Action v[E] Location Turbidity ~ Discoloration Sheen Location Turbidity Discoloration Sheen 36 Stormwater Pollution Prevention Plan Water Quality Monitorin2 Was any water quality monitoring conducted? D Yes D No If water quality monitoring was conducted, record results here: If water quality monitoring indicated turbidity 250 NTU or greater; or transparency 6 cm or less, was Ecology notified by phone within 24 hrs? D Yes D No ~ If Ecology was notified, indicate the date, time, contact name and phone number below: Date: Time: Contact Name: Phone#: General Comments and Notes Include BMP TP.nairs, maintenance. or installations made as a result of the in<mection. Were Photos Taken? D Yes D No If photos taken, describe photos below: 37 Stormwater Pollution Prevention Plan Appendix F -Engineering Calculations 38 Stormwater Pollution Prevention Plan Storm Drainage Calculations: Historic land Cover = Till forest Total Site Area (including frontage): 51,380 SF -I 18 Acres of Till forest CREATE a new Time Series 1.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 predev tsf Flow Frequency Analysis Time series File:predev.tsf Project Location:Sea-Tac 0.000000 Till Forest 0.000000 Till Pasture 0.000000 Till Grass 0.000000 Outwash Forest 0.000000 Outwash Pasture 0.000000 Outwash Grass 0.000000 Wetland 0.000000 Impervious ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank (CFS) (CFS) 0.074 2 2/09/01 18:00 0.095 0.020 7 1/06/02 3:00 0.074 0.055 4 2/28/03 3:00 0.057 0.002 8 3/24/04 20:00 0.055 0.033 6 1/05/05 8:00 0.048 0.057 3 1/18/06 20:00 0.033 0.048 5 11/24/06 4:00 0.020 0.095 1 1/09/08 9:00 0.002 Computed Peaks 0.088 Developed -Detained CREATE a new Time Series 0.00 0.00 0.000000 Till Forest 0.00 0.00 0.000000 Till Pasture 0.43 0.00 0.000000 Till Grass 0,00 0.00 0.000000 Outwash Forest 0.00 0.00 0.000000 outwash Pasture 0.00 0.00 0.000000 OUtwash Grass 0.00 0.00 0.000000 Wetland 0.75 0.00 0.000000 Impervious dev.tsf Flow Frequency Analysis Time series File:dev.tsf Project Location:Sea-Tac 1 2 3 4 5 6 7 8 Return Prob Period 100.00 0,990 25.00 0. 960 10.00 0.900 5.00 0.800 3.00 0.667 2.00 0.500 1. 30 0.231 1.10 0. 091 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. 220 6 2/09/01 2:00 0.445 1 100.00 0.990 0.180 8 1/05/02 16:00 0,283 2 25.00 0.960 0.265 3 2/27/03 7:00 0.265 3 10.00 0.900 0.195 7 8/26/04 2:00 0.235 4 5.00 0.800 0. 235 4 10/28/04 16:00 0.234 5 3.00 0.667 0.234 5 1/18/06 16:00 0.220 6 2.00 0.500 0.283 2 10/26/06 0:00 0.195 7 1. 30 0.231 39 Stormwater Pollution Prevention Plan 0.445 1 1/09/08 6,00 0.180 0.391 Computed Peaks Retention/Detention Facility Type of Facility: Facility Length: Facility Width: Facility Area: Effective Storage Depth: Stage a Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: Orifice# 1 2 Height (ft) 0.00 1.65 Top Notch Weir: outflow Rating Curve: Hyd Inflow Outflow Detention Vault 166.00 ft 35. 00 ft 5810. sq. ft 2.50 ft 493.60 ft 14525. cu. ft 2.50 ft 18.00 inches 2 Full Head Diameter Discharge (in) (CFS) 0.69 0.020 1. 37 0.047 None None Peak 8 Pipe Diameter (in) 4.0 Storage 1.10 50.00 0.091 0.9BO Target Cale Stage Elev (Cu-Ft) (Ac-Ft) 1 0.45 ******* 0.29 2.55 4 96 .15 14810. 0.340 2 0.22 0.07 0.07 2.50 496.10 14533. 0.334 3 0.26 ******* 0.06 2.19 495.79 12741. 0. 292 4 0.28 **** ... ** 0.05 2.15 495.75 12507. 0.287 5 0.23 ******"' 0.03 1.78 495.38 10341. 0.237 6 0.23 ******* 0.02 1. 58 495.18 9161. 0. 210 7 0.18 ******* 0.02 1. 46 495.06 8506. 0.195 8 0.19 ******* 0.01 0.98 4 94 . 58 5674. 0 .130 Route Time series through Facility Inflow Time Series File:dev.tsf Outflow Time Series File:rdout Inflow/Outflow Analysis Peak Inflow Discharge: 0.445 Peak Outflow Discharge: 0.295 Peak Reservoir Stage: 2.55 Peak Reservoir Elev: 496.15 Peak Reservoir Storage: 14810. Flow Frequency Analysis Time Series File:rdout.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- Flow Rate Rank Time of Peak (CFS) 0.073 2 2/09/01 20:00 0.016 7 1/07/02 4,00 0.057 3 3/06/03 22,00 0. 013 8 8/26/04 7:00 0.016 6 1/08/05 5,00 0.035 5 1/19/06 o,oo 0.055 4 11/24/06 8,00 0.295 1 1/09/08 10,00 Computed Peaks CFS at 6,00 on Jan 9 in Year 8 CFS at 10,00 on Jan 9 in Year 8 Ft Ft Cu-Ft 0.340 Ac-Ft -----Flow Frequency Analysis------- --Peaks --Rank Return Prob (CFS) (ft) Period 0. 295 2.55 1 100.00 0.990 0.073 2.50 2 25.00 0.960 0.057 2.19 3 10.00 0.900 0.055 2.15 4 5.00 0.800 0.035 1. 78 5 3.00 0.667 0.016 1.58 6 2.00 0.500 0.016 1.46 7 1.30 0.231 0. 013 0.98 8 1.10 0. 091 0.221 2.53 50. 00 0.980 40 -------- ::. 3i li ~ Cl:: z I') "' ! c,i I') / _u ______ _ L,J UJ ~ L,J z ~ ~z- ' .. a .,,... .,,.., =''' SJ.NlllllO::> Sl00Clll tf SJ.M]Plt'IO:. SlOID)I ~ SJ.MJflllO:) SJOc:>~ UD/61/11 II SJ.K3JUIO::, SlOo:>~ 110,h/Q -~" ! ~ p • R -i ,I !, ! ;pl ,, • eg1.! --------------- -, I I' I' .: •' I I ----,.~.Q ______ : ~, 'i I ' j----,--,-·,-...._ ·----------- '!' ' '1IISlil ,; I I I I I I , I I 1: r------------1 . 18S8 ,; I I I I I I I :m ,. I I I 1- . f·· I I I . I : t ... ---~~-"--·~_J:' , I I . 1-----~·~----J --:r;,_, ---~---... I • I 8 • •t· • ~ l•l D • I ~ •11!1 i ! ~ . • • • •• I 'I I ;~1i· .1 .,,... • 1 1 I ' ·~ < •1.-h i. ·' •• ·~·· i ' I ··p , • • I 'Ii-laa < '. E a~•ldl~: ~ 1•d • l • 1 ; 51: =~-~·· ' " -:r-"i, ' ~ fl d • • • 1 ·1 ~ · ~111 iH I I a ~ ,, r~ 1 ie .... ., .. 48 'r -'I'~ 1. I. ~I. I le i i i I I I I ' • H ' • I t I ii ; I ; ' • ' i ' • • " 10 • 't6ZW 'd .. j ! i ~ • ' ~-~ ~i ' -~ ~· "" ' ~i;. • . ' . ~~ r ; ii •• ~-·I I !~a •• ~~ ; ' ; ~, l • ~1 " i / f I I I I I I I I ;; I i I I I I ,, I I I I I II '" !i ii ~ 11 ii I I I I II I I i ~ I \@} ; ,! ,! (,) ~§ ~§ ~ I <~ ) ~ ' • ~ C C .t--J--· (,) ' -------- ! • 'i • h • l~! ·1• ~:,.d '© ~I ~ ·~. ~i a· -~ . ·' i ;! 1111 1~ t ! -~d i bi . iii . ;,n .,.H ~ """ = • r i It " "I ,t I i i~ I I ..,,. ' • j ., ., -~ -~ r ,= ... . " i r~, ; -eg· ... ~ !, ,. ' I ~-5j . ~-n""> = ~ l31NI H,01..:1 \,e .. <..J After Recording return to: DECLARATION OF COVENANT AND GRANT OF EASEMENT IN CONSIDERATION of the approved King County ----------- permit for application No. ----------relating to real property described as follows: ------------------------------- The undersigned as Gran tor( s ), declares that the above described property is hereby subject to an easement for a system of stormwater facilities and BMPs, and hereby dedicates, covenants and agrees as follows: I. King County shall have the right to ingress and egress over those portions not contained in Exhibit "A" to access such easement area for inspection of and to reasonably monitor the performance, operational flows, or defects in accordance with and [ as presented in King County Code Section 9.04.120]. 2. If King County determines that maintenance or repair work is required to be done to the system, the Director of the Water and Land Resources Division of the King County Department of Natural Resources shall give notice of the specific maintenance and/or repair work required pursuant to K.C.C 9.04.120. The Director shall also set a reasonable time in which such work is to be completed by the Grantor(s), its heirs or assigns. If the above required maintenance or repair is not completed with the time set by the Director, the County may perform the required maintenance or repair. Written notice will be sent to the Grantor(s) stating the County's intention to perform such maintenance. Maintenance work will not commence until at least seven (7) days after such notice is mailed. If, within the sole discretion of the Water and Land Resources Division Director, there exists an imminent or present danger, said seven (7) day notice period will be waived and maintenance and/or repair work will begin immediately. 3. If at any time King County reasonably determines that any existing drainage facility or flow control BMP creates any of the conditions listed in K.C.C. 9.04.130 and herein incorporated by reference, the Water and Land Resources Division Director may take measures specified therein. 4. The Grant or( s) shall assume all responsibility for the cost of any maintenance and for repairs to the system. Such responsibility shall include reimbursement to the County within thirty (30) days of the receipt of the invoice for any such work performed. Overdue payments will require payment of interest at the current legal rate as liquidated damages. If legal action ensues, the prevailing party is entitled to costs or fees 5. The Grantor(s) is (are) hereby required to obtain written approval from the Water and Land Resources Division Director of the King County Department of Natural Resources prior to filling, piping, cutting, or removing vegetation (except in routine landscape maintenance) in open vegetated drainage facilities (such as swales, channels, ditches, ponds, etc.), or performing any alterations or modifications to the drainage facilities contained within said drainage easement. Any notice or consent required to be given or otherwise provided for by the provisions of this Agreement shall be effective upon personal delivery, or three (3) days after mailing by Certified Mail, return receipt requested. 2 6. This agreement constin1tes the entire agreement between the parties. and supercedes all prior discussions. negotiations. and all agreements whatsoever whether oral or written. This covenant is intended to protect the value and desirability of the real property described above, and shall insure to the benefit of all the citizens of King County, and shall be binding on all heirs, successors and assigns. OWNER OWNER ST A TE OF WASHINGTON ) COUNTY OF KING )ss. On this day personally appeared before me: ---------------------' to me known to be the individual(s) described in and who executed the within and foregoing instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein stated. Given under my hand and official seal this day of _______ , 20_ Printed name Notary Public in and for the State of Washington, residing at-------------- My appointment expires ________ _ 3 ~ er~ ,,,,, 5i ~·" ~~~ '!!' ffi~= ~r ~~ ;tD ' XO ~c ~a, ;,.. ~c 1 E3 - ; • ! .. ~ ~ 2 " : ~ II II ;;u -3:: ..,co )> z ~ :::c -<-r 0 l"1 -z-X .. _. ::c: en :e ~ ii! :::c >I-< 0 (0 > • :::u ~;;;~ -i "' (J) "O co.., ~ TRACT '9' 927 S.F. l N ' V) ---i:::cJ-lA I->z [;/~~C) C'l -< V))> 0 )> O 0 .::uooc fT1 < rr, z }> rr1 (.11 -I U) ::0 (/) --< ~ [ [ V t ~ f 5' BS8L 17f.2(1' I -J ' --------------------I f ~---------:rttACT" .. A'" ~ LANDSCAPE TRACT ~ LOT 7 3,297 S.F. I u~~:;•;;'.'.);~'t,,",;;'~ ! 5,375 S.F, . ' . ~ ,; -.. f SE(p~3!1) CT. n+oo r r ---:s·8S8L---\ lJ( I \\ -~ I LOTS '\ ,. 51 • '·"' s.r. ) t g ~ / ~ I"' I ;<t; '---_,· ""--_/ ~ '(-' ~~-- NIW41't1"r: ~.,,. f: I-..... ....._""_ ,r, I ~ ~/ I IQ·~ ----~ I l 1 LOT• 1 • -------;.EISIL ---1 ~I~ II • I• LOT 5 4,715 S.F. I . I~ I !1; • h I Ii ----71.31' ---j 3,688 ss I a I~ . I : sr; ·I~ I 11! I .,._...__ ---_I _M,_~ -B , ,.:i· ..-,_.,..-"'~.oo"-11 .. 11" § ..... """'--I 24.31' I ;--· ?" / I 10' BS8l. .-----1 I I l-1~5~ -1-· / ~,,,·-"" I I ,, I I~ 1" I LOT 3 I ~ , .... S.F I i I"' oil i ; :1 I I ~· 9SIL I ------1 "'"' I I I~ I• I LOT 2 I I 4,277 SF k I ti ii~ ., ·I !i I I I I ~ _s·esa._ - """ LOT 1 iJ 4,134 S.F. I; ir ·1 I I I I ___ s· BSBL _ _J "·"' ~ • I J l I r , ' 1 505 NW MALL STREET. ISSAQUAH, WA 98027 PH'. (425) 83?-BOB3 Fx: (425) 837-0583 CONTACTU s@GEO DA TUM. COM King County, Washington Technical Information Report For: Malhi 7-Lot Short Plat American Asian Construction, LLC. 9501 South 207th Place Kent, WA 98031 KC# L06S0006 GeoDatum Project No. 2005-294 Cheryl Lee Girard, PE MALHI 7-Lo.,. SHORT PLA.,. · TIR 10/28/2008 :@ ~ @5 = cri = ui =, ~-.......i ci ~ Y) ci :J e,j Q ~ Revisions: Date Description 5-2-2008 KCDDES Review Comments #1 7-31-2008 Revised Calculations 9-24-08 KCDDES Review Comments #3 10-28-08 KCDDES Review Comments #4 PAGE: 1 OF 28 Table of Contents Section 1 -Project Overview Section 2 -Conditions and Requirements Summary Section 3 -Off-site Analysis Section 4 -Flow Control and Water Quality Facility Analysis and Design Section 5 -Conveyance System Analysis and Design Section 6 -Special Reports and Studies Section 7 -Other Permits Section 8 -CSWPPP, TESC Analysis and Design Section 9 -Bond Quantities, Facility Summaries, and Declaration of Covenant Section 10 -Operations and Maintenance Manual Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 TIR Worksheet Vicinity Map NRCS Soils Information PreDeveloped Site Conditions Developed Site Conditions t, ;j Geo Datum Appendix A -Bond Quantity Worksheet, Facility Summary and Declaration of Covenant Appendix B -Construction Storm Water Pollution Prevention Plan MALHI 7wLDT SHORT PLAT· TIR 10/28/2006 PAGE: 2 OF 28 EIGeoDawm, FIGURE 1 -TECHNICAL INFORMATION REPORT (TIR) WORKSHEET l'\IU I l'RO.Jl:(T 0\\ !\H{ \1\1) l'HO.JL( I ENC.l'\FER Project Owner: Harry Bapla, American Asian Construction Address Phone 9501 South 207ili Place, Kent, WA 98031 425-837-8083 Project Engineer: Cheryl Girard, PE P \HI 3 I\ Pl. 01· Pl R\11 I' \!'Pl.IC\ 110'\ I Subdivision l,i Short Plat l,i Grading 1 Commercial W Other p \HI 2 PRO.JI Cr LO( U 10!\ •\'\I) llESCRII' rlO'\ Project Name: Malhi Short Plat Location: 19406 116" Ave. SE, Renton Township: 23N Range: 05E Section: NE Y. 32 I' \HI 4 01111 H lff\ II\\ S \'\ll l'I lt\111 S I DFW HPA I Shoreline Management I COE 404 I Rockery I DOE Dam Safety l,i Structural Vaults I FEMA Floodplain I Other I COE Wetlands P\Hl 5 SIii (O\l\ll!\11\ \'\l)l)H\l'\\CI B\SI'\ Communitv Soos Creek Drainaee Basin Green River/Soos Creek I' \HI <, SIi i < 11 \R \( II HIS I If S r River r Stream 1 Critical Stream Reach r Depressions/Swalt'8 r Lake I Steep Slopes --------------------------------------------- I' \RI 7 SOIi S Soll Type Aiderwoods (AgB) I Additional Sheets Attached MALHI 7·LDT SHOR.T PL.AT s TIR 10/28/2008 Slopes 0-6% I Floodplain -------------------------------------------------------------- 1 Wetlands Category II buffer r Seeps/Springs I High Groundwater Table I Groundwater Recharge 1 Other Erosion Potential Moderate Erosive Veloclti .. 3 FPS F'AGE 3 OF 28 KJ Ge.oDatum" FIGURE 1 • TECHNICAL INFORMATION REPORT (TIR) WORKSHEET l'.\R I 8 1)1.\ LLOl'J\H.l'i I 1.1'.\lrl .\'J 10:\S REFERENCE LIMIT A TI ON/SITE CONSTRAINT r, -Downstream Analvsis 1 Additional Sheets Attached I' \IU 9 IS( l{I.Ql IRL\11.\ IS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION r Sedimentation Facilities W Stabilized Construction Entrance P Perimeter Runoff Control I Clearing & Grading Restrictions P Cover Practices ~ Construction Sequence I Other I' \ I{ I 111 Sl Hl \( I I Grass Lined Channel P Pipe System I Open Channel I Dry Pond I Wet Pond \\ \ I I I{ S \ S I I \ I I Tank P Vault I Energy Dissipater I Wetland r Stream MINIMUM ESC REQUIREMENTS AFTER CONSTRUCTION P Stabilize Exposed Surface r-i' Remove and Restore Temporary ESC Facilities f.1 Clean and Remove All Silt & Debris r Ensure Operation of Permanent Facilities I Flag Limits of SAO and Open Space Preservation Areas I Other I Infiltration I Depression Method of Analysis: I Flow Dispersal KCRTS r Waiver I Regional Detention Brief Description of System Operation: Surface flow will be collected in a series of catch basins and pipe then conveyed to an underground combination detention and water quality vault. Facility Related Site Limitations Reference I Facility I l'\HI 11 SIIUCllR\l \\\I \SIS P Cast in Place Vault I Retaining Wall I Rockery> 4' Higli I Structural on Steep Slope I Retaining Wall I Limitation I l' \HI 12 L \SI \I I \ IS II{\( IS 1 Drainage Easement I Access Easement I Native Growth Protection Easement f.1 Tract I Other Part IJ SH,:\\ I l lH <H !'ROI ISSI<)\ \L L\Cl\1.1 H I or a ci · engineer under my supervision have visited the site. Actual site conditions as observed were incorporated into this works t the attach ents. To the best ofmy knowledge the infonnation provided here is accurate. MALHI 7-LOT SHORT PLAT · TtR 10/28/2008 8 PAGE 4 OF 28 fi,ilGeoDatu~, Section 1 -Project Overview The proposed Malhi Short Plat consists of approximately 47,969 square feet (1.1 acres) of land located at 18311-116'" Avenue SE. This proposed project consists of subdividing an existing single family parcel (Tax Parcel# 322305-9014) into 7 lots total through the King County Short Subdivision Process. The existing parcel is zoned R-8-SO. The project site is located in the NE Quarter of Section 32, Township 23 N, Range 5 E, WM, King County, Washington and is shown on the vicinity map below. "' @ SE 176th St "' ... m ~ " ,, "' ~ -i j < F ~ SF ·hf.th P. I·,··. ' , . . I~: ,,···.·. ,~:_ .:,: _,._ ' .... SE 192nd SI "-" ' . -;; ~ FIGURE 2 -VICINITY MAP The existing rectangular shaped lot consists of a residential home, detached garage and gravel driveway providing access to 1161 " Ave. SE. The site gently slopes (10 percent max.) from west to east to a roadside ditch system along the west side of1161h Ave. SE. The existing lot currently consists mainly of overgrown grass lawns and small orchard located in the rear yard. MALHI 7-LO,. SHORT PLAT TIR 10/28/2008 PAGE 5 0~ 28 t.aGeoDatum · The soils on the site are mapped per King County Soils Survey as Alderwood soils (AgB), see soils map below. Alderwood soil is classified as moderately well drained gravelly sandy loam, SCS Hydrologic Soil Group C and for the purpose of KCRTS modeling, Till. • • ' . ,1. II•• ' . . ' . .! ... '· . : . • • • • • i: • • • • • It ' • • • • • • • • .. i. • • • •• • • • • I Alden.-ood gnvelly sanuy losm, 0 to 6 percent ~ (A£B) ,·•Thi• soil ls nearly level ond undulatini. l t is sinilar to Aldenrood gra,·eJ ly sandy loom, 6~o !S percent slopes, but in places its surface ls,•er is 2 to 3 inches thitlcr. Areas uro irregular 1n shape lllld rang< fro,:, JO ncrcs to ~liahtly more than GOO acres in size. Some areas are as 111Uch as 15 percen, included Nol'IUI, Bellingh!JIO, Tukwila, and Shalcar soils, all of ~'hich are poorly drained; and some Meas in the l'icini tY of Enumda•• are as CJUch n• 10 percent Buckley ,oi 1 s. Runoff ls s!OI<, anJ the erosion haard is slight. Thi> Aldcr,,ooJ soil i; used for tin,bcr, pasture, berr i C!,,, and row crops> ,i\nd for urhun dcvc lop?lent. Cppabi!lty unit !Ve-2; 11oodland ~roup 3<12. FIGURE 3 -NRCS SOIL INFORMATION MALHI 7-LOT SHOAT PLAT· TIR 10/28/2008 PAGE 6 OF 28 f, .'J Geo Datum -- Section 2 -Conditions and Requirements Summary The following summary describes how this project will meet the eight "Core Requirements" and the "Special Requirements" that apply Core Requirements 1. Discharge at the natural location: This site currently drains to an existing road side ditch located along 1161h Avenue SE. The drainage system for this project will discharge to the existing location. 2. Off-site Analysis: A Level 1 off-site analysis was completed for this project and is included in this submittal. 3. Flow control: The proposed detention/wet vault is sized to meet Conservation Flow Control requirements per the 2005 KCSWDM using the KCRTS program. This requires level 2 flow control with pre-developed conditions for the site modeled as till forest, the historic land cover. 4. Conveyance system: Flows will be conveyed using catch basins and tight line culverts. 5. Erosion and sedimentation control: TESC measures are shown on the engineering plans submitted with this TIR. 6. Maintenance and Operations: Maintenance and Operations procedures are included in Section 10 of this TIR. 7. Financial guarantees and liability: The applicant or the Contractor will provide bonds for performance and maintenance based upon the information included on the Bond Quantity Worksheet provided in Section 9 of this TIR. 8. Water Quality: The new impervious surface area subject to vehicular traffic is greater than 5,000 square feet for this project. As a result, water quality treatment is required. Water quality is to be provided with a detention/wet vault and sized according to Basic Water Quality Treatment requirements per the 2005 KCSWDM. Special Requirements 1. Other adopted area-specific requirements: Conservation Flow Control has been provided. 2. Floodplain/Floodway delineation: Not applicable. 3. Flood protection facilities: Not applicable. 4. Source controls: Not applicable. 5. Oil Control: Not applicable. Section 3 -Off-site Analysis This Level 1 Downstream Analysis is submitted as required by Core Requirement #2, Section 1.2.2, of the 2005 KCSWDM. Core Requirement #2 requires a qualitative analysis of upstream and downstream drainage conditions with an initial project submittal. Task 1: Study Area Definition and Maps: See the following page for a map of and Section-1 Project Overview of this report for a detailed Study Area Definition. In addition, the project site as mapped by KCSWDM appears to be split into 2 drainage basins Panther Lake to the west and Lake Youngs to the east. Field investigation verified that the Malhi Short Plat outfalls to the Lake Youngs Drainage Basin. MALHI 7-LOT SHORT PLAT -TIR 10/28/2008 PAGE 7 OF 28 DR06~000914 HpJ, !U"OII .. DtlHI! §J~Sl Panther Lal<@ Drainage Basin 0 MALHI 7-LDT SHORT PLAT TIR l CJ/28/2008 SIE 1 Ma lhl Shon Pl at to--~-LD75R043 ExJst,ng and Propa>ea Oownstre.irn Outfall ~ ~ SE lllm!ST IIE lllffl.lFi. Lako Vour,g, ll<alnaee Basin GE 1MTIIST SI! 19'STST J.;,GeoDatum -·---:c B~pla Sl>ort Plot L07SR041 Nll.1,1 \ EKiiling and Propo.,od Daw"stream DutfalJ PAGE 8 OF 28 J:JGeoDatum Task 2: Resource Review: A sensitive areas review shows no critical areas on or near the project site. The following is a Drainage Complaints and Sensitive Areas map for a Y. of a mile surrounding this property. MALHt ?·LOT SHORT PLAT TIR 10/28/2008 PAGE 9 OF 28 fJ ;fGeoDatum Although there have been many drainage complaints, only one was due to conveyance problems This complaint was made 10 years ago. See the drainage complaint table below. KING COUNTY WATER and LAND DIVISION-Drainage Services Section Complaint Search Printed: 07/06/2005 3:57:03 PM Compliant Number 1984-0298 1994-0144 1995-0200 1996-2071 1996-2071 2001-0322 2001-0322 2001-0389 2001-0389 2001-0389 2002-034 2002-0381 2005-0440 2005-0468 2005-0491 2006-0173 2006-0173 C C C C R Type Code WQC WQC WQE WQR C C WQC WQC C WQC WQR Type of Problem FILL DRNG DITCH ?S FLDG FLDG WQO WQO WQI WQI WQI DDM DDM WQDR WQI DCA WQDR WQDR Address of Problem 18504 112 AVE SE 17925 116TH AVE SE 18204 116TH AVE SE 11828 SE 180TH ST 11828 SE 180TH ST 1]631 SE 184TH ST 11631 SE 184TH ST SE 180TH & ll8TH AVE SE SE 180TH & ll8TH AVE SE SE 180TH & 118TH AVE SE 18524 114TH AVE SE 11825 SE 184TH ST 11447 SE 180TH PL 11700 SE 184TH ST 17830 ll6TH AVE SE ll447 SE 180TH PL 11447 SE 180TH PL Comments ILLEGAL NEAR: 17409 126TH AVE POSS FILLING VIOUACT PLAT MORNINGG LACK OF CONVEYANCE ON PVT PROPE INADEQUATE CONVEYANCE OF OFFSITEFLO INADEQUATE CONVEYANCE OFFS!TE FLO APP ARENT GREY WATER DISCHARGE INT APP ARENT GREY WATER DISCHARGE INT POTENTIAL GRAY WATER DISCHARGE C POTENTIAL GRAY WATER DISCHARGE C POTENTIAL GRAY WATER DISCHARGE C SHEETFLOW ONTO PROPERTY FROM UP SOGGY AREA IN YARD MAY BE THE RES DUMPING FROM RV FILLING/RE-GRADING ON NEIGHBOR'S PROPERTY. INV DI RV LEAVING TRAIL OF SEWAGE RV LEAVING TRAIL OF SEWAGE Tbros Page 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El 686El MALHI 7-LCT SHORT PL.A"T TtR 10/28/2008 PAGE 1 0 OF 28 T ask 3 : Field Inspection: A field obse rvation of the site and Y-t mile downstream conditi ons wa s performed on Augu st 8, 2005 (sun ny and app ro xim atel y 75 degrees) and again verified on March 7, 200 8 (Ov ercas t, som e rai n and 45 degrees). F ield observati o ns are noted un der Task 4. Task 4 : Dra in age System Description and Problem Descriptions : Upstrea m: T he site is loca ted at a re gional high point, therefore there is no upstream tributary area to th e project s it e . Down stream : T he dow nstream drainage system is shown in the photos and descriptions on the following page s: Photo Photo 1 MALHI ?·LOT S HOR T P LAT 'TI R l 0 /2 8 /2008 Runoff from project site flows from west to east to the roadside ditch along the west side of 1161 h Ave . SE .. From east side of 1161h Ave SE looking west at site . P A GE 1 1 O F 2 8 2 3 MALHI 7 ·LOT SHORT PLAT -TI R 1 D/28/2009 Runoff from site is collec ted by th e roadside d itch and conveyed north via 12" con c ret e c ulvert. From project site looking north at roads ide ditch along 1161h Ave . S E. On-site Runoff continues north under SE 182nd St via a 12" pipe and c atc h basin system before discharging back into the roadside ditch on the west side of 1161h Ave . SE. Along 1161h Ave SE looking north. 300-feet downstream P AGE 1 2 OF 28 4 5 MALHI 7 -LOT SHORT PLAT TIR l 0/28/2008 ..,.._..,,,cc;;;._--, Geo Datum . Runoff contin u es north thro ugh a series of 12" dia. driveway culverts c ro ssing under SE a nd 1801h Pl. and S E 172 Pl. Along 1161h Ave SE looking north . 300-1 ,460 feet downstream Runoff continues north through another series of 12" dia. driveway culverts and open ditch towards SE Petrovitsky Rd ... Alon g 116th Ave SE looking north . 1,460-2,330 feet downstream P AGE 1 3 OF' 28 6 7 Ge oDatum -Runoff from both the east sid e an d west side of 1161h Ave SE is collected in an 18" CMP pipe system . Along 1161h Ave SE looking north . 2,300-feet down stream The 18" pipe discharges to the closed conveyance system located in SE Petrovitsky Rd and is conveyed east. Along SE Petrovitsky Rd looking east. 2,330-feet downstream The drainage path as described above appears to have adequate capacity and no obvious problem s w ere observed . MALHI 7 •LOT SHORT P LAT TIR 10/28/2 008 P AGE 14 OF 28 t~GeoDatum Task 5 -Mitigation of Existing or Potential Problems: A combination Conservation Flow (Level 2) Detention and Basic Water Quality vault has been designed to mitigate potential downstream problems. The detention/wet vault was designed using till forest as the pre-developed conditions per King County requirements. Section 4 -Flow Control and Water Quality Facility Analysis and Design Flow control Analysis and Design The drainage on the existing site was analyzed for this project with KCRTS software. Figures provided in the 2005 KCSWDM and KCRTS manual were used to determine project location and parameters. A portion of the site and required frontage improvements located near the northeast corner of the subject site are not able to be collected and treated in the proposed detention and water quality facility. As mitigation for the uncollectable area, this project will collect an equal area from offsite paved surfaces within 116th Avenue SE and provide flow control and water quality treatment. A positive aspect of this proposal is that the uncollectable are from project site and required frontage improvements contains some landscape area which is not considered P.G.I.S. The proposed offsite trade area to be collected and treated is entirely P.G.I.S. Existing Site Conditions (See Figure 4) Historic Land Cover = Till forest Total Site Area (including frontage): 51,380 SF = 1.18 Acres of Till forest CREATE a new Time Series 1.18 0.00 0.000000 Till Forest 0.00 0.00 0.000000 Till Pasture 0.00 0.00 0.000000 Till Grass 0.00 0.00 0.000000 Outwash Forest 0.00 0.00 0.000000 Outwash Pasture 0.00 0.00 0.000000 Outwash Grass 0.00 0.00 0.000000 Wetland 0.00 0.00 0.000000 Impervious predev.tsf Flow Frequency Analysis (1 hour time steps) Time Series File:predev.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank Return Prob (CFS) (CFS) Period 0.074 2 2/09/01 18:00 0.095 1 100.00 0.990 0.020 7 1/06/02 3:00 0.074 2 25.00 0.960 0.055 4 2/28/03 3:00 0.057 3 10.00 0.900 0.002 8 3/24/04 20:00 0.055 4 5.00 0.800 0.033 6 1/05/05 8:00 0.048 5 3.00 0.667 0.057 3 1/18/06 20:00 0.033 6 2.00 0.500 MALHI 7-LQT 9HCR1 PLAT · TIR PAGE I 5 DF 28 10/28/2008 .. ll ; NW 1/4 SEC. 4 ,TWP. 22N ,RGE. 5E ,W.M. MALHI SHORT PLAT l N ' GRAPHIC SCALE 'j --I' 12" !ID 1: -.i.m----t{ ' I ' .. ro ~ 9 , "°" -20 n PREDEV BASIN= 1.18 ACRES FORESTED TILL '!Ji' • I I I I I j X : i'/·· ! i I \/ .. _[ \ ' '· .. , i.: ', I ·--.:c::r>, ---I I \ / r 'T· If, .I _,_, L ··:' ]' .. .: ,, " r * ,/ .. }/ s * ,, F--'"-~ -1-k-- , ,. I /{ 11 \ ,i ' 'Ir~~ / I,_. I •'--':;, '\ ,--::::-·;-~: -~ 'I "%-- /" 0 >.1-,-.._ ;,1,,., '"CU. ,-.._ ,F'C C ~i-i'iZ~'!-~'-• ( ( \ ', \_,/ "'- _j ·--.. \ --~/ / -,,. ----- * II ,id ~\ " \ . ,_ '. -,,, ' I ' ' *! I I I I I I I }!.. ,,-.._ I ' ' \ \ \ ---.::-, ' ' ' ' ' \._ "\ ::ii ' ' " \--·r ,,_-'ji' \ '.' l.- \~ t 't I \ I . r· " ; \ ·-I' \ -~-i· l · ;. -,}:c"~"'v _ , 4;! -ii ------I --. ,,,.,,'I/.~-...... -il 1, ~ 5: I I I ; I '"'I l-- 1\ \ I \,\ I I' I i"' I /- , j ~ ·fr··. - I Ii I • I 1 ' I 1 @.i~ ) ls11r "·-~ ~QNITIM& •-~ I -~---,! rf . ' ~i I '11' i,........-__ ( ' I I I ' I ' I I ' I -1 I I ' I EXISTING STORM WATER OUTFALL ! ! 1 l E I ::, I-< ...J n. ... ro C, o· G.I C, "' i5 F § I-... I!! Q'. "' iii 0"' ~ ~ i 3 ~ < 0 ::i; .., "' Q. ~~ ~~~ ~!. "f > -~ >~~ z~~ ~ o-;;; ~ii A!ill\N ~N CDl<ISTIIUCllON INC 9501 S. 2071H PL. l<ENT, WA 980~1 206.·HB.06JJ DR,.,l'ltR: AMS DESIGNER· AMS PROJ. ENGR/Sl)RV. MXf' DATE: 7-J0-08 PRO.ECT NO.: 05294 I • SHEEl 1 °' ;1 11 !. ,I ' " i l N ' ~APHIC SCALE " ~ ., 11NCH~20FT. NW 1/4 SEC. 4 ,TWP. 22N ,RGE. 5E ,W.M. MALHI SHORT PLAT I I I DEV BASIN~ TOTAL AREA 1.18ACRES TILL GRAS!l = 0.43 ACRES IMPERV10Uf3 = 0.75 ACRES I "1 --11 1 l:r" .. It ..u.«i~ I I I I X li' ' I ·----J 927 S.F. ,-----~-~------ ::. N Ill LOT 7 ·"' t l\n a,.212 S.F. f / , I I /, I J· I I 5· 8Slll J L------------- '',,, '',,, ',, ____ _ SE. 11BRD CT. 11+00/ (Plalai!OM>) -~ -------1'1~ \ "'-''· ' ~ ,.#;: .. =----------:~ ... ;-.,.,..., :";~ ... --\.-,, _--,, . . ........... /,~r.. ~ \ 11.00' ~ . .,----··-\I ) 1------\... -_:__7~' I r --\---- ' ;,·'/ -,,-I I I --, l ,,"'if" I I \ I --!--~d ~ I \ I I I \ I _//--~---,J.,_ I \ I <'.., I I \ I =i LO ~ . J;-·, I \ I II , .,_ I ' I • I l,869 ~-1 \1 LOT'~ 1 .,,_, ~'.1 4,277 Si.,f" I ti LOTJ vi I. LOT2 . I l.869 S.F i1 I I;,, 4,277 S.F. ~ • I ,. ;,,I I il'O'IOl1W.. UICA..d,,;,, If I I ~.,.....;gl I I ,"" _ "IIIDIOa'\l I , . 11 " I :1 I ___ 5'8Sll. ---+I \ I 111 BSBL \ --1 \I \ I 'I \ I (, \ I I\ \ I I \ \I I \ ' ' ,, 1 \ LOT1 1\~I : \ 4,134 S.F. I \.ti ~ , j ,• \ ., % ){.: •• IK! ' !:!1 JI',,, ' I;,, \ "'I i i n: : I I I : li ... ~c"dJ 1 ___ _5+~-1-~ :_ "'' I --:::::sxu,· 1 /. ~,:, ---------< I ,,--,~~,Jj1 AS ,-Mlt OF '9IIUIIIIJl'T-lElfllPI ..,._ ,-1115 ~ Ult 11 9W.L coewucT A ...-r 101G 9,QIIC ~ WNClt PP PWUa: c..14.11 OF ICC9'III MffJ&IIX C. aoaF1W MID 111\biAT ._MD 9UU. a CQ.1R1UI MIi ~ 'IQ, ~ wmot. (MWLOll l'IDI ~ "IIIENCN 9Uil IC CIINIE1ID 'IQ, 90 OlUICWON NIO WAllDT ffS1DI- ~~~' I / I . ~ciN~~ i::--\ I "' \ I \ __ I ®! ,._ .... ,. -~ -~· ~ ' I ·' "'•?~">' tSITE YJCINITY MAP \ __ "i "' :(T\: , , 'I l{ .~-. I "[' /\ I (\ \\ .f/l'···.,,, ~,7/ , 'J UNCOLLECT ABLE ' ' 1AREA= 1,950SF(0.048AC) \ • I I I I I I I r I I I AREA OF TRADE FOR NCOLLECTABLE DETENTION AND WATER QUALITY= 1,950SF (0.048AC)i ! l! l E ! :::, ... cu 0( O' G1 "' i:~ ;sj- ";ij<~ ~;: ' 3:: .• ,:::;; z;~ ~-~j~ ~lfffffl !I 1 1 11111 i Cl) ~ ~ D. Q I-., § ~ :ii I!! ::c G in VI Ii: fl ; ~ ::; Q , i i ' § .O.SAN AWERICAN COlfSm.JCTION IMC. 95D1 S. 2D7TH PL KENT. WA !ilS031 206.·HB.063}_ DRAFTER: AM$ DESIGNER: AMS PRDJ. ENGR/SURV. MXP DA lE: 7-.30--Cle PRO.£:CT NO.: 05294 9£ET 1 OF 0.048 5 11/24/06 4:00 0.095 1 1/09/08 9:00 Computed Peaks Developed Site Conditions: 0.020 0.002 0.088 7 8 1. 30 1. 10 50.00 0. 231 0.091 0.980 The developed site drainage system will route runoff to a Level 2 detention/wet vault that will release runoff to an existing ditch located within the 116'h Avenue SE right-of-way. This is the existing natural discharge location. Developed -Detained with Basic Dispersion Impervious Area: Pervious Area: Basic Dispersion: CREATE a new Time 0.00 0.00 0.46 0.00 0.00 0.00 0.00 0.72 devbmp.tsf Lots = 7; average lot size = 4,106 SF Lot impervious area = 4,106 x 75% (max. lot coverage) x 7 = 21,560 SF = 0.49 AC Access road & sidewalk & offsite trade = 11,506 SF = 0.264 AC Total Impervious= 0. 75 AC (Landscape, Lawn): 18,731 SF= 0.43 Acres (Use Till Grass) 42 LF of dispersion trench on Lot 5 (1 O LF of trench treats 700 SF of ISA) 42 LF x (700 SF/ 10 LF) = 2,940 SF (0.07 Acres) of ISA treated Per KCSWDM Table 5.2.2.A ISA treated by basic dispersion should be modeled as 50% ISA and 50% grass. Series 0.00 0.000000 Till Forest 0.00 0.000000 Till Pasture 0.00 0.000000 Till Grass 0.00 0.000000 Outwash Forest 0.00 0.000000 Outwash Pasture 0.00 0.000000 Outwash Grass 0.00 0.000000 Wetland 0.00 0.000000 Impervious Flow Frequency Analysis Time Series File:devbmp.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- Flow Rate Rank Time of (CFS) 0.216 6 2/09/01 0.175 8 1/05/02 0.260 3 2/27/03 0.188 7 8/26/04 0.227 5 10/28/04 0.229 4 1/18/06 0.273 2 10/26/06 0.438 1 1/09/08 Computed Peaks MALHI 7-LOT SHORT F'LAT · TIR 10/28/2008 Peak 2:00 16:00 7:00 2:00 16:00 16:00 0:00 6:00 -----Flow Frequency Analysis------- --Peaks Rank Return Prob (CFS) Period 0.438 1 100.00 0.990 0.273 2 25.00 0.960 0.260 3 10.00 0.900 0.229 4 5.00 0.800 0.227 5 3.00 0.667 0.216 6 2.00 0.500 0.188 7 1. 30 0.231 0.175 8 1.10 0.091 0.383 50.00 0.980 PAGE 1 6 OF 28 Retention/Detention Facility Type of Facility: Facility Length: Facility Width: Facility Area: Effective Storage Depth: Stage O Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: Detention Vault 166.00 ft 35.00 ft 5810. sq. ft 2.50 ft 493.60 ft 14525. cu. ft 2.50 ft 12.00 inches 2 Full Head El Ge.oDatum , Pipe Orifice # Height (ft) 0.00 1. 65 Diameter Discharge Diameter 1 2 Top Notch Weir: Outflow Rating Curve: (in) 0.68 1.40 None None (CFS) (in) 0.028 0.097 4.0 Stage Elevation Storage Discharge (ft) ( ft) 0.00 493.60 0.01 493.61 0.02 493.62 0.03 493.63 0.04 493. 64 0.05 493.65 0.06 493.66 0.16 493.76 0.26 493.86 0.36 493. 96 0. 46 494.06 0.56 494.16 0.66 494.26 0.76 494. 36 0.86 494. 46 0. 96 494.56 1.06 494.66 1.16 494. 76 1.26 494. 86 1.36 494. 96 1.46 495.06 1.56 495.16 1.65 495.25 1. 66 495.26 1. 68 495.28 1. 69 495.29 1. 71 495.31 1.72 495. 32 1. 74 495. 34 1. 75 495.35 1. 77 495. 37 1. 87 495.47 MALHI 7-LOT SHOR"T PLAT · TIR 10/29/2008 (cu. ft) 0. 58. 116. 174. 232. 291. 349. 930. 1511. 2092. 2673. 3254. 3835. 4416. 4997. 5578. 6159. 6740. 7321. 7902. 8483. 9064. 9587. 9645. 9761. 9819. 9935. 9993. 10109. 10168. 10284. 10865. (ac-ft) (cfs) 0.000 0.000 0.001 0.001 0.003 0.002 0.004 0.002 0.005 0.003 0.007 0.003 0.008 0.003 0.021 0.005 0.035 0.006 0. 048 0.007 0.061 0.008 0.075 0.009 0.088 0.010 0.101 0. 011 0.115 0.012 0.128 0.012 0.141 0 .013 0.155 0.013 0.168 0.014 0.181 0.015 0.195 0.015 0.208 0.016 0. 220 0.016 0. 221 0.017 0.224 0.018 0.225 0.020 0.228 0.023 0.229 0.027 0.232 0.031 0.233 0.034 0.236 0.035 0. 249 0.042 Percolation (cfs) 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PAGE 1 7 OF 28 ff GeoDat~~ ,, 1. 97 495.57 11446. 0.263 0.048 0.00 2.07 495.67 12027. 0.276 0.052 0.00 2.17 495.77 12608. 0.289 0.057 0.00 2.27 495.87 13189. 0.303 0.061 0.00 2.37 495.97 13770. 0.316 0.064 0.00 2. 47 4 96. 07 14351. 0.329 0.068 0.00 2.50 496.10 14525. 0.333 0.069 0.00 2.60 496.20 15106. 0. 347 0.380 0.00 2.70 496. 30 15687. 0.360 0.946 0.00 2.80 496.40 16268. 0.373 1.680 0.00 2. 90 496.50 16849. 0.387 2.470 0.00 3.00 496.60 17430. 0.400 2.760 0.00 3.10 496.70 18011. 0.413 3.020 0.00 3.20 496. 80 18592. 0.427 3.250 0.00 3.30 496. 90 19173. 0. 440 3 .470 0.00 3. 40 497.00 19754. 0.453 3.680 0.00 3.50 497.10 20335. 0.467 3.880 0.00 3.60 497. 20 20916. 0.480 4.060 0.00 3.70 497. 30 21497. 0.494 4.240 o.oo 3.80 497.40 22078. 0.507 4.410 0.00 3.90 497.50 22659. 0.520 4.580 0.00 4.00 497.60 23240. 0.534 4.740 0.00 4.10 497.70 23821. 0.547 4.890 0.00 4.20 497.80 24402. 0.560 5.040 0.00 4.30 497.90 24983. 0.574 5.190 0.00 4.40 498.00 25564. 0.587 5.330 0.00 4.50 498.10 26145. 0.600 5 .460 0.00 Hyd Inflow Outflow Peak Storage Target Cale Stage Elev (Cu-Ft) (Ac-Ft) 1 0.44 ******* 0.26 2.56 496.16 14890. 0.342 2 0.22 0.07 0.07 2.49 496. 09 14478. 0.332 3 0.26 ******* 0.06 2.18 495. 78 12664. 0.291 4 0.27 ******* 0.06 2.14 495.74 12435. 0.285 5 0. 23 ******* 0.03 1. 76 495. 36 10225. 0.235 6 0.23 ******* 0.02 1.58 495.18 9204. 0.211 7 0 .17 ******* 0.02 1.49 495.09 8649. 0.199 8 0 .19 ******* 0.01 0.95 494.55 5548. 0.127 • This list of inflow hydrographs is listed in order of the peak calculated vault outflow. This does not match the order shown in the devbmp peaks analysis. However, each devbmp peak inflow event is listed here. The new calculated 25 year peak flow (hyd 2) is less than or equal to the original pre-developed 25 year peak flow (0.07). The new 2 year peak flow (hyd 6) is less than or equal to the original 2 year peak flow (0.03). Therefore the conservation flow control standard is achieved. • The following hydrographs display the developed storm event entering the vault and the corresponding vault outflow. Cumulative storm events over a short period of time have an additive effect on the vault outflow. MALHI 7-LOl" SHORT PLAT TIR 1 0/2B/2008 PAGE 1 8 OF 28 S:e·1 Oe\e 01/J2/C8 00 J.:J F·-.c ns,, w,,16l(:& 73 ~u -"· ~ r L i ~ -------+11 _____ ___,,,___ ________ , __ ---- 1 0 t , .. • ~ i------ ?16 I s,«1 /,c-.tc: t' Start Data 10/19106 00.00 End [)lit(, '11!02/06 23:00 ~o.+--------------,,-------------- t ;------- ~ " +------------.-+-~------------ !+----~~-_-1'_\_Jl'-~---~. --~ ,--\f\J, .. fl " "' 216 "" "ndetained Developed lOOYR Peak '-~~~~~~~~~~~-----'H~"~'-~~~~~~~~~~~u"ndetained Developed 25YR Peak ;. • 1 •• ,, t ,,, \ • -)< ~+-------- i:' !)(~ ' st5rt D!1W.02/20o'OO 00 00 Encl Dote 03106103 2~ 00 s O ., 1· f ~ 0 +---------------1------------'"1 ,m- . ~ ---- !------·------·---- 8 . " , .. MALHI 7-LOT 8HCR.T FILAT TIR 1 D/28/2DOB J ---,_- / I Undetained Developed lOYR Peak PAGE 1 9 OF 28 ,;,. ----------------- ---+-- St;,c, oe·.~ :,·,111f(l(5 OJ CQ E~c! Da:c ·J 11?0100 73 CG ------+--------- 0 ------------------·. i' !+------------H------------- f\ :---lj[+-:' -1/' o+--------,-------~-~-=~~·----~.-------~-~ 72 144 21€ ,w .;;, ,, I ,<.1 , 111 t 'f\ • -); :;+-------------- " I:'~~ Start D.lto 10/21/04 OD 00 Er<:! Date 11/04/04 23 00 -------------------- •.+---------- ~+---------------------------- ' I 80_+-+!+---------' ~ 'I ~ ---·-'------~-'--~"""'"~--~~"---r'-,~~~~-----'-·1__,,"",_ '" "' sso .;;, , 1 11 1 ,, ! I ~ h • -X '.J!.• • ,tl<f( I" St8rt Date 02102/01 oo oo ... -----------. _J,,__---------'"_"_"'_''_"_"_"_ro_1 n oo N+------+--J-1-------J~ ~--=--. I ~ 0 " MALHI 7·LDT SHORT PLAT · TIR 10/28/2008 / ____ _____...,..,... ---·-·----- "\"'-. '" "" f jlGeoDatum, Undetained Developed 5YR Peak Undetained Developed 3YR Peak Undetained Developed 2YR Peak PAGE 20 OF 28 Duration Comparison Anaylsis Base File: predev.tsf New File: rdout.tsf Cutoff Units: Discharge in CFS -----Fraction of Time--------------Check of Cutoff Base New %Change Probability 0.017 0.89E-02 0.57E-02 -35.6 I 0.89E-02 0.021 0.61E-02 0.43E-02 -30.6 I 0.61E-02 0.026 0.47E-02 0.37E-02 -22.4 I 0.47E-02 0.030 0.36E-02 0.32E-02 -9.5 I 0.36E-02 0.035 0.28E-02 0.28E-02 -0.6 I 0.28E-02 0.039 0.22E-02 0.20E-02 -9.7 I 0.22E-02 0.043 0.15E-02 0.16E-02 11.1 I 0.15E-02 0.048 0.98E-03 0 .13E-02 30.0 I 0.98E-03 0.052 0.62E-03 0.93E-03 50.0 I 0.62E-03 0.057 0.34E-03 0.52E-03 52.4 I 0.34E-03 0.061 0.23E-03 0.28E-03 21. 4 I 0.23E-03 0.065 0.16E-03 0.13E-03 -20.0 I 0.16E-03 0.070 0.98E-04 O.OOE+OO -100.0 I 0.98E-04 0.074 0.16E-04 O.OOE+OO -100.0 I 0.16E-04 Maximum positive excursion= 0.005 cfs ( 9.8%) occurring at 0.048 cfs on the Base Data:predev.tsf and at 0.053 cfs on the New Data:rdout.tsf Maximum negative excursion= 0.007 cfs (-28.7%) occurring at 0.025 cfs on the Base Data:predev.tsf and at 0.018 cfs on the New Data:rdout.tsf Base 0.017 0.021 0.026 0.030 0.035 0.039 0.043 0.048 0.052 0.057 0.061 0.065 0.070 0.074 Required detention vault volume = 166' x 35' x 2.5' = 14,525 CF Proposed detention vault volume= 14,812 CF@ Maximum Stage Storage MALHI 7-LOT SHORT PLAT TIR 10/28/2008 Tolerance------- New %Change 0.016 -5.6 0.016 -24.5 0.019 -25.4 0.027 -9.8 0.034 -0.2 0.037 -4.9 0.046 6.0 0.051 7.8 0.056 6.9 0.059 3.9 0.063 2.9 0.065 -1.1 0.067 -4.1 0.069 -7.4 PAGE 21 OF 28 :. Pau~ed rlow rreqmmcy -l<CRTS C t:"' f'x iii lL ~ . • e> • ~ u ~ i5 iii LL ~ • e> • ~ u ~ i5 f=.ieturr · Pei 100 2 s 10 20 SC 100 '•Ui,1 • ,c·1 ·-···-··-----~ R ----·--' • • • • • 00 ·--··----_ 1J-2 ~ • -~---.....,.--·--------------~--------------------- 2 5 10 20 30 40 50 60 70 80 90 95 98 99 CumulatiYe Probability a, ~ 0 r:1<111! ·:1,ir ~ ~ R 0 \ "' 0 ci "' ~ 0 ,, ,\ ',\ ;,! ci "' 0 0 "·ii t--------~-----~--------- N ~ 0 OD ,:; 0 0 ~ 0 0 10 ,5 \ ' ', __________________ ._\, -"7------- 10 .-4 ', 10 -3 ' ':O .2 Probability Exceedence ' MALHI 7-LO"T SHORT PLAT TIR 10/28/2008 PAGE 22 OF 28 Developed -Stormwater BMPs Impervious Area: Lots = 7; average lot size = 4,106 SF Total lot area= 7 '4,106 = 28, 742 SF Required BMPs on small lots must account for 10% of lot area (KCSWDM 5.2.1.1) 28,742 SF' 10% = 2,874 SF of ISA must be treated via BMPs A basic dispersion trench is the selected BMP on this project. Basic dispersion trenches treat 700 SF of ISA per 1 O feet of trench. 10 (feet of trench)/ 700 (SF of ISA)' 2,874 SF of ISA= 41 feet of trench required. 42 feet of trench will be provided on Lot 5. Water Quality Analysis and Design The basic water quality menu is to be used for this project. The selected BMP is a wet vault. Facility Sizing Calculations Runoff -New Developed Condition • V, = (0.9 A;+ 0.25 Atg + 0.19 Aff + 0.01 A 0 ) x (R/12) • V, = (0.9' 33,066 + 0.25' 18,731) x (0.47/12) • V, = (29,759 + 4,863) X (0.47/12) • V, = 1,349 CF Wetpool Volume • Vo;::.f*V, • V,= 3' 1,349 CF • V0 = 4,047 CF Required wet vault volume= 4,047 CF Provide 5.0' of dead storage below detention within south half of vault and above sediment storage of 12" Proposed wet vault volume= 88' L x 17.5' W x 5' D = 7,700 CF Length to width ratio= 88:17.5 = 5:1. • Per KCSWDM page 6-84 Vault Structure #3 no baffle is required since the length to width ratio is 5:1. MALHI 7-LDT SHORT PLAT -TIR 1 D/28/200B PAGE 23 OF 28 J IGeoDat~m ·· Section 5 -Conveyance System Analysis and Design For the conveyance analysis on this site the developed flows have been calculated using a 15-minute time step as follows. Flow Frequency Analysis Time Series File:devlS.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank Return Prob (CFS) (CFS) Period 0.357 6 8/27/01 18:00 1.10 1 100.00 0.990 0.254 8 1/05/02 15:00 0.770 2 25.00 0.960 0.770 2 12/08/02 17:15 0.499 3 10.00 0.900 0.288 7 8/23/04 14:30 0.441 4 5.00 0.800 0.441 4 11/17/04 5:00 0.428 5 3.00 0.667 0.428 5 10/27/05 10:45 0.357 6 2.00 0.500 0.499 3 10/25/06 22:45 0.288 7 1. 30 0.231 1.10 1 1/09/08 6:30 0.254 8 1.10 0.091 Computed Peaks 0.992 50.00 0.980 The 2005 KCSWDM requires that the proposed storm drainage system can convey the 25 year peak flow. On this site the 25 year peak flow is 0.77cfs when calculated using a 15 minute time step. The following backwater analysis demonstrates the flows that can be routed through the proposed conveyance system before it goes into overflow. BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:upvault.bwp Surcharge condition at intermediate junctions Tailwater Elevation:496.1 feet *Vault overflow elevation, worst case scenario* Discharge Range:0.5 to 4. Step of 0.5 [cfs] Overflow Elevation:496.91 feet Broad Crested Weir: Length:3. feet, Height:O. feet Upstream Velocity:3. feet/sec PIPE NO. 1: 4 LF -12 11 CP @ 55.50% OUTLET: 491.60 INLET: 493.82 INTYP: 1 JUNC NO. 1: OVERFLOW-EL: 505.20 BEND: 33 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.00 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.50 2. 30 496.12 1. 00 2.31 496.13 1.50 2.35 496.17 2.00 2.41 496.23 2.50 2.48 496.30 3.00 2.56 496.38 3.50 2.67 496.49 MALHI 7~LaT SHORT PLAT TIR 10/28/2008 * 0.012 0.30 0.10 * 0.012 0.43 0 .13 * 0.012 0.52 0.16 * 0.012 0.61 0.18 * 0.012 0.68 0.20 * 0.012 0.75 0.22 * 0.012 0.80 0.24 4.50 4.50 2.29 2.30 0.13 4.50 4.50 2.28 2.31 0.33 4.50 4.50 2.29 2.35 0.49 4.50 4.50 2.29 2.41 0.64 4.50 4.50 2.30 2.48 0.78 4.50 4.50 2.30 2.56 0.90 4.50 4.50 2.31 2.67 1.13 PAGE 24 OF 28 f fGeoDat~m, 4.00 2.78 496.60 • 0.012 0.85 0.26 4.50 4.50 2.32 2.78 1.39 PIPE NO. 2: JUNC NO. 2, 52 LF -12 1'CP @ OVERFLOW-EL, 504.73 0.67% OUTLET: 493.82 INLET: 494.17 INTYP: 1 BEND, 20 DEG DIA/WIDTH, 4.0 Q-RATIO, 0.50 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.50 1. 00 1. 50 2.00 2.50 3.00 3.50 4.00 1. 97 2.04 2.17 2.36 2.61 2.90 3.25 3.66 496.14 496. 21 496.34 496.53 496.78 4 97. 0 7 497.42 497. 83 * 0.012 * 0.012 * 0.012 * 0.012 * 0.012 * 0.012 * 0.012 * 0.012 0.30 0.43 0.52 0.61 0.68 0.75 0.80 0.85 0. 27 0. 39 0.49 0.58 0.68 0.78 1. 00 1. 00 2.30 2.31 2.35 2. 41 2.48 2.56 2.67 2.78 2.30 2.31 2.35 2.41 2.48 2.56 2.67 2.78 1.96 2.00 2.08 2.20 2.35 2.53 2. 74 2.99 1. 97 2.04 2.17 2.36 2.61 2.90 3.25 3.66 0.41 0.62 0.80 0.97 1. 13 1. 29 1.56 1. 87 PIPE NO. 3, JUNC NO. 3, 95 LF -l2 11 CP @ OVERFLOW-EL, 497.89 0.49% OUTLET, 494.17 INLET, 494.64 INTYP, 1 BEND, 10 DEG DIA/WIDTH, 2.0 Q-RATIO, 0.50 Q(CFS) HW(FT) HW ELEV. • N-FAC DC ON TW DO DE HWO HWI ******************************************************************************* 0.33 0.67 1. 00 1.33 1.67 2.00 1.51 1.61 1. 81 2.08 2.43 2.85 **•*'************ ******** OVERFLOW 2.33 3.35 2.67 3.93 496.15 • 0.012 0.24 0.24 1.97 1.97 1.51 1.51 0.33 496.25 * 0.012 0.35 0.34 2.04 2.04 1.60 1.61 0.49 496.45 • 0.012 0.43 0.43 2.17 2.17 1.77 1.81 0.62 496.72 • 0.012 0.49 0.50 2.36 2.36 2.01 2.08 0.74 497.07 • 0.012 0.55 0.57 2.61 2.61 2.31 2.43 0.85 497.49 • 0.012 0.61 0.64 2.90 2.90 2.69 2.85 0.97 OVERFLOW ENCOUNTERED AT 2.33 CFS DISCHARGE***************** CONDITIONS CALCULATED ASSUMING SURCHARGE CONDITIONS********* 497.99 • 0.012 0.66 0.72 3.25 3.25 3.13 3.35 1.07 498.57 • 0.012 0.71 0.81 3.66 3.66 3.64 3.93 1.18 PIPE NO. 4: 37 LF -12"CP @ 0.51% OUTLET, 494.64 INLET, 494.83 INTYP, 1 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.22 1. 33 496 .16 • 0.012 0.20 0.20 1. 51 1.51 1. 33 1.19 0.12 0.44 1.43 496.26 • 0.012 0.28 0.28 1.61 1. 61 1.43 1.30 0.25 0.67 1. 63 496.46 • 0.012 0.35 0.34 1.81 1. 81 1.63 1. 51 0.35 0.89 1. 91 496. 74 • 0.012 0.40 0. 39 2.08 2.08 1. 91 1. 81 0.44 **************** OVERFLOW ENCOUNTERED AT 1.11 CFS DISCHARGE ***************** 1.11 2.25 4 97. 08 • 0. 012 0.40 0.39 2.43 2.43 2.25 2.14 0.41 1.33 2.67 497.50 • 0.012 0.40 0.39 2.85 2.85 2.67 2.54 0.39 1. 56 3.17 498.00 • 0.012 0.40 0.39 3.35 3.35 3.17 3.03 0.39 1.78 3.75 4 98. 58 • 0.012 0.40 0.39 3. 93 3.93 3.75 3.61 0.39 The system first overflows at 1 .11 cfs at CB #7. 1.11 cfs is more than the 25 year or 100 year developed flow for this site. Also the following page containing Figure 4.2.1.F "Nomograph for sizing circular drains flowing full" from the 2005 King County SWDM shows that A 12" in diameter CPEP (mannings 0.012) sloped at 0.5% has a flowing full capacity in excess of 2.5 CFS. Therefore the proposed stormwater conveyance system has more than adequate capacity. MALH1 7-LOT SHOR1' PLA1' · TIR 10/29/2008 PAGE 25 OF"" 29 Section 6 -Special Reports and Studies There are no special reports or studies other than the Soos Creek Basin Plan that we are aware of. A Geotechnical Engineering Study was performed by GeoGroup NW and has been submitted with this TIR under separate cover. Section 7 -Other Permits Upon approval of the engineering plans by KCDDES, a ROW use permit is required for all work within KC ROW. In addition, construction of water and sanitary sewer facilities to serve this project must conform to and be approved by the Soos Creek Water and Sewer District. Separate building permit applications for residential construction on individual lots must be submitted and approved by King County DOES. Section 8 -CSWPPPfTESC Analysis and Design A Construction Storm Water Pollution Prevention Plan is located in Appendix B. Temporary Erosion and Sediment Control Per Appendix D of the 2005 King County Surface Water Design Manual, the following information is presented in consideration of compliance with King County Erosion and Sediment Control Standards: Clearing Limits have been defined on the TESC/CSWPPP Cover Measures both temporary and permanent are addressed in the construction sequence. Perimeter Protection is proposed in the form of Silt fence. Traffic Area Stabilization is proposed in the form of a Temporary Construction Entrance. Sediment Retention is proposed in the form of silt fence and sediment trap at the project perimeter until the vault is constructed. The vault will then be used for temporary sediment retention. Surface Water Collection is proposed by utilizing the vault for temporary surface water collection. DeWatering Control is not anticipated to be required for this project. If required, a "Baker" filtration tank will likely be utilized to filter stormwater prior to release into existing downstream storm drainage system. Temporary Dust Control other than the temporary construction entrance is not anticipated to be required. If fugitive dust becomes an issue, watering the soil before it is worked will alleviate the problem. Temporary Flow Control during construction is proposed in the form of utilizing the proposed detention vault once it has been constructed. See Construction Sequence. Sediment Trap Sizing 2,080 SF (0.20CFS) = 416 SF Section 9 -Bond Quantities, Facility Summaries, and Declaration of Covenant Please refer to Appendix A for Bond Quantities, Facility Summary and Declaration of Covenant. Section 10 -Operations and Maintenance Manual Please refer to the following pages for Operation and Maintenance Information. MALHI 7-LOT 9HOFl!T PLAT TIR 10/28/2008 PAGE 26 DIC 28 APPENDIX A MAIN I ENANCE REQUIREMENTS FLOW CONTROL. CONVEYANCE. AND WQ FACILITIES ~- NO. 3-DETENTION TANKS AND VAULTS Maintena nee Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Storage Area Plugged Air Vents One·half of the cross section of a vent is blocked Vents free of debris and sediment al any point with debris and sediment. Debris and Sediment Accumulated sediment depth exceeds 1 0% of All sediment and debris removed the diameter of the storage area for % length of from storage area. storage vault or any point depth exceeds 15% of diameter. Example; 72·inch storage tank would require cleaning when sediment reaches depth of 7 inches for more than % length of tank. Joints Between Any crack allowing material to be transported into All joint belVv'een tank/pipe sections Tank/Pipe Section facility. are sealed Tank Pipe Bent Out of Any part of tank/pipe is bent out of shape more Tank/pipe repaired or replaced to Shape than 10% of Its design shape. design. Vault Structure Damage lo Wall, Cracks wider than ~inch and any evidence of Vault replaced or repaired to design Frame, Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks, or maintenance inspection personnef detennines that the vault is not struclurally sound. Damaged Pipe Joints Cracks wider than %-inch at the joinl of any No cracks more than %-inch wide at inleUoutlet pipe or any evidence of soil particles the joinl of the inleUoutlel pipe. entering the vault through the walls. Manhole Cover Not in Place Cover is missing or only partially in place. Any Manhole is closed open manhole requires maintenance. locking Mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Not Working maintenance person with proper toots. Bolts into frame have less than %-inch of thread (may not apply to self-locking lids.) Cover Difficult lo One maintenance person cannot remove lid after Cover can be removed and Remove applying 80lbs of ltft. Intent is to keep cover from reinstalled by one maintenance sealing off access to maintenance. person. Ladder Rungs Unsafe King County Safety Office and/or maintenance Ladder meets design standards. person judges lhal ladder is unsafe due 10 Allows maintenance person safe missing rungs, misa~gnment. rust. or cracks. access. Large access Gaps, Doesn't Cover Large access doors not flat and/or access hole Doors closes flat and covers access doors/plate Completely nol completely covered. NOTE however that hole completely. grated doors are acceptable. Lifting Rings Missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to remove lid Rusted or lid. 1/2412005 2005 Surface Water Design Manual -Appendix A A-4 APPENDIX A MAINTENANCE REQUIREMl:NTS FOR Fl.OW CON I ROL. CONVEYANCE. AND WQ FACILITIES -------- NO. 4 -CONTROL STRUCTURE/FLOW RESTRICTOR Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed General Trash and Debris Distance between debris build-up and bottom of AU trash and debris removed (Includes Sediment) orifice plate is less lhan 1.5 feet. Structural Damage Structure is not securely attached 10 manhole Structure securely attached lo wall wall and outlet pipe structure should support at and outlet pipe. least 1,000 lbs of up or down pressure. Structure is not in upright position (allow up 10 Structure in correct position. 10% from plumb). Connections to outlet pipe are not watertight and Connections lo outlet pipe are water show signs of rust. tight; structure repaired or replaced and works as designed. Any holes-other lhan designed holes-in the Structure has no holes other than structure. designed holes. Cleanout Gate Damaged or Missing Cleanoul gate is nol watertight or is missing. Gate is watertight and works as designed. Gate cannot be moved up and down by one Gate moves up and down easily and maintenance person. is watertight. Chain/rod leading to gate is missing or damaged Chain is in p1ace and works as designed. Gate is rusted over 50% of its surface area. Gate is repaired or replaced 10 meet design standards. Orifice Plate Damaged or Missing Control device is not wof1<.ing properly due to Plate is in place and works as missing, out of place. or bent orifice plate. designed. Obstructions Any trash, debris. sediment, or vegetalion Plate is free of all obstructions and blocking the plate. \NOrkS as designed . Overflow Pipe Obstructions Any trash or debris blocking (or having the Pipe is free of all obstructions and potential of bloeking) the overflow pipe. works as designed. Manhole See "Detention Tanks See "Detentton Tanks and Vaults" Table No. 3 See MDetention Tanks and Vaults" and Vaults" Table No. 3 2005 Surface Water Design Manual -Appendix A 1/24/2005 A-5 APPENDIX A MAINTENANCE REQUIREMENTS FLOW CONTROL. CONVEYANCE. AND WQ FACILITIES I ·----. I NO. 5 -CATCH BASINS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is performed General Trash & Debris Trash or debris of more than JS: cubic fool Vllhich No Trash or debris located (Includes Sediment) is located immediately in front of the catch basin immediately in front of catch basin opening or is blocking capacity of the basin by opening. more than 10%. Trash or debris (in the basin) that exceeds 1'3 1he No trash or debris in the catch depth from the bottom of basin to invert the basin. lowest pipe into or out of the basin. Trash or debris in any inlet or outlet pipe blocking Inlet and outlet pipes free of trash or more lhan 1 /3 of its heighl. debris. Dead animals or vegetation that could generate No dead animals or vegetation odors that could cause complaints or dangerous present within the catch basin gases (e.g., methane). Deposits of garbage exceeding 1 cubic foot in No condition present which WOUd volume attract or support lhe breeding of insects or rodents. Structure Damage to Comer of frame extends more than % inch past Frame is even With curb. Frame and/or Top curb face into the street (If applicable). Slab Top slab has holes larger than 2 square inches Top slab is free of holes and cracks. or cracks v.;cter than Y. inch (intent is to make sure all material is running into basin). Frame not sitting flush on top slab. Le., Frame is silting flush on top stab separation of more than % inch of the frame from the top slab. Cracks in Basin Cracks wider than ~ inch and longer than 3 feet, Basin replaced or repaired to design Walls/Bottom any evidence of soil partides entering catch standards. basin through cracks, or maintenance person judges that structure is unsound. Cracks wider than Y.i inch and longer than 1 foot No cracks more than 1 /4 inch v.tde at at the joint of any inlet/outlet pipe or any the joinl of inleVoutlet pipe. evidence of soil particles entering catch basin through cracks. Settlement/ Basin has settled more than t inch or has rotated Basin replaced or repaired to design Misalignment more than 2 inches out of altgnment. standards. Fire Hazard Presence of chemicals such as natural gas, oil No flammable chemicals present. and gasoline. Vegetation Vegetation grov.ing aaoss and blocking more No vegetation blocking opening to than 10% of the basin opening. basin. Vegetation growing in inlet/outlet pipe joints that No vegetalion or root growth is more than 6 inches tall and less than 6 inches present. apart Pollution Nonflammable chemicals of more than Yt cubic No pollution present other lhan foot per three feel of basin length. surface film. Catch Basin Cover Cover Not in Place Cover is missing or only partially in place. Any Catch basin cover is closed open catch basin requires maintenance. Locking Mechanism Mechanism cannot be opened by on Mechanism opens with proper tools. Not Working maintenance person with proper tools. Bolls into frame have less than Xi inch of thread. Cover Difficult to One maintenance person cannot remove lid after Cover can be removed by one Remove applying 80 lbs. of lift; intent is keep cover from maintenance person. sealing off access lo mainlenance. Ladder Ladder Rungs Unsafe Ladder is unsafe due to missing rungs, Ladder meets design standards and misalignment, rust, cracks, or sharp edges allows maintenance person safe access. 1/24/2005 2005 Surface Water Design Manual -Appendix A A-6 APPENDIX A MAINTENANCE REQUIREMENTS FOR FLOW CONTROL. CONVEYANCE. ANU IVQ FACIL111ES ~· -------~ NO. 5 -CATCH BASINS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is performed Metal Grates Unsafe Grate Grate with opening wider than 718 inch Grate opening meets design (If Applicable) Opening standards. Trash and Debris Trash and debris that is blocking more than 20% Grate free of trash and debris. of grate surface. Damaged or Missing. Grate missing or broken member(s) of the grate. Grate is in place and meets design standards. NO. 6 -DEBRIS BARRIERS (E.G., TRASH RACKS) Maintenance Defect or Problem Condition When Maintenance Is Needed Results Expected When Component Maintenance Is Perfonned. General Trash and Debris Trash or debris that is plugging more than 20% Barrier clear to receive capacity of the openings in the barrier. flow. Metal Damaged/Missing Bars are bent out of shape more than 3 inches. Bars in place with no bends more Bars. than% inch. Bars are missing or entire barrier missing. Bars in place according to design. Bars are loose and rust is causing 50% Repair or replace barrier to design deterioration to any part of barrier. standards. NO. 7 -ENERGY DISSIPATERS Maintenance Defect or Problem Condttions When Maintenance is Needed Results Expected When Component Maintenance Is Performed. External: Roel< Pad Missing or Moved Only one layer of rock exists above native soil in Replace rocks to design standards. Rock area five square feet or larger, or any exposure of native soil. Dispersion Trench Pipe Plugged with Accumulated sediment that exceedS 20% of the Pipe deaned/flushed so that it Sediment design depth. matches design. Not Discharging Visual evidence of waler discharging at Trench must be redesigned or Water Properly concentrated points along trench (normal rebuilt to standards. condition is a Msheel How" of water along trench). Intent is to prevent erosion damage. Perforations Plugged. Over ~ of perforations in pipe are plugged 'Nith Clean or replace perforated pipe. debris and sediment. Water Flows Out Top Maintenance person observes water flowing out Facility must be rebuilt or of •Distributor" Catch during any storm less than the design storm or redesigned to standards Basin. its causing or appears likely to cause damage. Receiving Area Over-Water in receiving area is causing or has No danger of landslides Saturated potential of causing landslide prot>,ems. Internal: Manhole/Chamber Worn or Damaged Structure dissipating flow deteriorates to ~ or Replace structure to design Post. Baffles, Side of original size or any concentrated worn spot standards. Chamber exceeding one square foot IM'lich 1iYOUld make slructure unsound. 2005 Surface Water Design Manual -Appendix A 112412005 A-7 APPENDIX A MAIN !lNANCf REQUIREM~NTS FOR FLOW CON IROL. CONVEY ANCF. AND WQ FACJLITIES NO. 10 -CONVEYANCE PIPES AND DITCHES Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment & Debris Accumulated sediment that exCeeds 20% of the Pipe cJeaned of all sediment and diameter of the pipe. debris. Vegetation Vegetation that reduces free movement of water All vegelalion removed so water through pipes. flows freely through pipes. Damaged Protective coating is damaged: rust is causing Pipe repaired or replaced. more than 50% deterioration to any part of pipe. Any dent that decreases the cross section area Pipe repaired or replaced of pipe by more than 20%. Open Ditches Trash & Debris Trash and debris exceeds 1 cubic fool per 1,000 Trash and debris cleared from square feet of dilch and slopes. dilches. Sediment Accumulated sediment that exceeds 20% or the Ditch cleaned/flushed of all design depth. sediment and debris so that ii matches design. Vegetation Vegetation that reduces free movement of water Water flows freely through ditches through ditches. Erosion Damage to See ~Detention Ponds~ Table No. 1 See "Delention Ponds" Table No. 1 Slopes Rock Lining Out of Maintenance person can see native soil beneath Replace rocks to design standards. Place or Missing (If the rock lining. Applicable). NO. 11 -GROUNDS (LANDSCAPING) Maintenance Defect or Problem Conditions When Maintenance is Needed Result& Expected When Component Maintenance is Perfonned General Weeds Weeds growing in more than 20% of the Weeds present in less lhan 5% of (Nonpoisonous. not landscaped area (trees and shrubs only) the landscaped area. noxious) Safety Hazard Any presence of poison ivy or other poisonous No poisonous vegetation present in vegetation. landscaped area. Trash or Litter Paper, cans, bottles, totaling more than 1 cubic Area clear of litter. foot within a landscaped area (trees and shrubs only) of 1.000 square feet. Trees and Shrubs Damaged Limbs or parts of trees or shrubs lhat are split or Trees and shrubs with less than 5% broken which affect more than 25% of lhe total of total foliage with split or broken foliage of the tree or shrub. limbs. Trees or shrubs that have been blown down or Tree or shrub in place free of injury. knocked over. Trees or shrubs which are not adequatety Tree or shrub in place and supported or are leaning over, causing exposure adequately supported; remove any of the roots. dead or diseased trees. 2005 Surface Water Design Manual -Appendix A 112412005 A-9 APPENDIX A MAIN JENANn REQUIREMENTS FLOW l'UNlROL CONVEYANC~. AND WQ FACILITlcS -·~ NO. 17 -WETVAUL T Maintenance Defect or Problem Condition When Maintenance Is Needed Recommended Maintenance to Component Correct Problem Vault Area Trash/Debris Trash and debris accumulated in vault (includes Remove trash and debris Accumulation floatables and non-floatables). Sediment Sediment accumulation in vault bottom exceeds Remove sediment from vault Accumulation the depth of the sediment zone plus 6 inches. Ventilation Ventilation area blocked or plugged Remove or clear blocking material from ventilalion area. A specified % of the vault surface area must provide ventilalion to the vault interior (seep. 6-82 ror required %). Vault Structure Damage to Wall, Cracks Vwider than 1.4-inch and any evidence of Vault replaced or repaired to design Frame. Bottom, soil particles entering the structure through the specifications and/or Top Slab cracks, or mainlenance inspection personnel determines lhat the vault is not structurally sound. Damaged Pipe Joints Cracks Wider than %-inch al the joint of any No cracks more than %·inch Wide al inleVoutlet pipe or any evidence of soil partides the joint of the inleUouUet pipe. entering the vault ttvough the walls. Baffles Damaged/Defective Baffles corroding, cracking. warping and/or Repair or replace baffles to showing signs of failure as determined by specifications. maintenance/inspection staff. lnleUOullet Damaged Pipes lnleVoutlet piping damaged or broken and in Pipe repaired and/or replaced. need of repair. Trash/Debris Trash and debris accumulated in pipe or Remove trash and debris. Accumulation inlet/outlet (inciUdes floatables and non-- floatables). Access Cover Damaged/Nol Cover cannot be opened or removed, especially Pipe repaired or replaced to proper Working by one person. working specifications. Access Ladder Damaged Ladder is corroded or deteriorated, nol Ladder replaced or repaired to functioning proper1y, missing rungs, has cracks specificalions, and is safe lo use as and/or misaligned. Confined space warning stgn determined by inspection personnel. missing. Replace sign warning or confined space entry requirements. ]/24/2005 2005 Surface Water Design Manual -Appendix A A·14 I Damaged Pipe Joints Cracks wider than %-inch at the joints of any No cracks more than Y..~inch wide at inleUoutlet pipe or any evidence of soil particles the joint of the inleVoutlet pipe. ' ' entering the vault through the walls. ' Ventilation Ventilation area blocked or plugged Remove or clear blocking material from ventilation area. A specified % of the vautt surface area must provide ventilation to the vault interior (seep. 6-122 for required%). Baffles/Internal Damaged Baffles or walls corroding, cracking, warping Repair or replace baffles or walls to Walls and/or showing signs of failure as detemiined by specifications. maintenance/inspection person. Aa:ess Cover Damaged/Not Cover cannot be opened, corrosionfdefonnation Cover repaired to proper working WO<king of cover. specifications or replaced . Access Ladder Damaged Ladder is corroded or deteriorated, not Ladder replaced or repaired to fundioning property, mtSSing rungs, cracks, and specifications, and is safe to use as misaligned. detennined by inspection personnel. NO. 20 -STORMFIL TER@ Maintenance Defect or Problem Condition When Maintenance Is Needed Recommended Maintenance to Component Conect Problem Media Section Sediment Sediment depth exceeds 0.25 inches. No sediment deposits that would AocurnulatK>n on impede pem,eabilily of the compost Media. media. Trash/Debris Trash and debris accumulated on compost filter Trash and debris removed from the Accumulatton bed. compost filter bed. First Chamber Sediment Sediment depth exceeds 6 inches in first No sediment deposits in vault bottom Accumulation chamber. of first chamber. Drain Pipes Sediment When drain pipes, clean-outs, become full with Remove the accumulated malerial Clean-Outs Accunulation sediment and/or debris. from the facilities. NO. 21 -STORMFIL TER® (CARTRIDGE TYPE) Maintenance Defect or Problem Condition When Maintenance Is Needed Recommended Maintenance to Component Comict Problem Compost Media Plugged Drawdown of water through the media takes Replace media cartridges. longer than 1 hour, and/or owrflow occurs frequenUy. Short Circuiting Flows do not property enter filter cartridges. Replace filter cartridges. Pipes Damaged Any part of the pipes that are crushed, damaged Pipe repaired and/or replaced. due to corrosion and/or settlement Access Cover Damaged/Not Cover cannot be opened, one person cannot Cowr repaired to proper wor1<ing Working open the cover, corrosion/defonnation of cover. specifications or replaced. Vautt Structure Damage to Wall, Cracks wider than ~inch and any evidence of Vault replaced or repaired to design Frame, Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks, or maintenance/inspection personnel determines that the vault is not struduraily sound. Damaged Pipe Joints Cracks wider than %-inch at the joint of any No cracks more than Y..-inch wide at inleVoutlet pipe or any evidence of soil particles the joint of the inlet/outlet pipe. entering the vault through the walls. Baffles Damaged Baffles corroding, cracking warping, and/or Repair or replace baffles to showing signs of failure as determined by specification. maintenance/inspection person. Access Ladder Damaged Ladder is corroded or deteriorated, not Ladder replaced or repaired and functioning property, missing rungs, cracks, and meets specifications, and is safe to misaligned. use as determined by inspection personnel. SECTION l'.1 FLOW CONTROL BMP, D TEXT OF INSTRUCTIONS FOR BASIC DISPERSION Your property contains a stormwater management flow control BMP (best management practice) called e "basic dispersion," which was installed to mitigate the stormwater quantity and quality impacts of some or all of the impervious surfaces or non-native pervious surfaces on your property. Basic dispersion is a strategy for utilizing any available capacity of onsite vegetated areas to retain, absorb, and filter the runoff from developed surfaces. This flow control BMP has two primary components that must be maintained: (1) the devices that disperse runoff from the developed surfaces and (2) the vegetated area over which runoff is dispersed. Dispersion Devices The dispersion devices used on your property include the following as indicated on the flow control BMP site plan: 0 splash blocks, 0 rock pads, ii gravel filled trenches, D sheet flow. The size, placement, composition, and downstream flowpaths of these devices as depicted by the flow control BMP site plan and design details must be maintained and may not be changed without written approval either from the King County Water and Land Resources Division or through a future development permit from King County. Dispersion devices must be inspected annually and after major storm events to identify and repair any physical defects. When native soil is exposed or erosion channels are present, the sources of the erosion or concentrated flow need to be identified and mitigated. Concentrated flow can be mitigated by leveling the edge of the pervious area and/or realigning or replenishing the rocks in the dispersion device, such as in rock pads and gravel filled trenches. Vegetated Flowpaths The vegetated area over which runoff is dispersed must be maintained in good condition free of bare spots and obstructions that would concentrate flows. • MALHI 7·LDT SHORT PLAT TIR 10/28/2008 f JGeoDatum ·· Appendix A -Bond Quantity Worksheet, Facility Summary and Declaration of Covenant PAGE 27 D> 28 Site Improvement Bond Quantity Worksheet King County Department of Development & Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 Project Name: Malhi 7-Lot Short Plat Date: 10/30/2008 Location: 116th Avenue SE at SE 183rd Court, Rent()_n, WA Project No.: L06S0006 Clearing greater than or equal to 5,000 board feet of timber? ~~~~~~yes If yes, Forest Practice Permit Number: (RCW 76.09) Page 1 of9 bondatvwksht x no Activity No.: L07SR043 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. Unit prices updated: 02112102 Version: 04122102 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet Backfill & compaction-embankment Check dams, 4" minus rock SWDM 5.4.6.3 'Crushed surfacina 1 1/4" minus WSDOT 9-03.9(31 Ditching Excavation-bulk Fence, silt SWDM 5.4.3.1 Fence, Temporary (NGPEl SWDM 5.4.2.4 SWDM 5.4.2.2 SWDM 5.4.2.1 SWDM 5.4.2.1 Plastic covering, 6mm thick, sandbaaaed SWDM 5.4.2.3 Rip Rap, machine placed; slopes WSDOT 9-13.1(2) Rock Construction Entrance, 50'x15'x1' SWDM 5.4.4.1 Rock Construction Entrance, 1OO'x15'x1' SWDM 5.4.4.1 Sediment pond riser assembly I SWDM 5.4.5.2 Sediment trap, 5' hiQh benn I SWDM 5.4.5.1 SWDM 5.4.5.1 SWDM 5.4.2.4 SWDM 5.4.2.5 SWDM 5.4.2.5 SWDM5.4.7 Page 2 of 9 nnnr'4nhAArlt~ht llmll~'~/s N' I' ~ -~..;<~-+~'.-'? ;_~:c· .. -·. $ 5.62 CY I 4311 $ 67.51 Each $ 85.45 CY $ 8.08 CY $ 1.50 CY I 17001 $ 1.38 LF I 5001 $ 1.38 LF $ 0.59 SY $ 1.45 SY $ 2.01 SY $ 0.53 SY $ 10.70 LF $ 16.10 LF $ 20.70 LF l 50J $ 2.30 SY $ 39.08 CY $ 1,464.34 Each $ 2,928.68 Each I 11 $ 1,949.38 Each $ 17.91 LF $ 68.54 LF $ 0.51 SY $ 6.03 SY $ 7.45 SY $ 74.75 HR I 401 L$ 97.75 HR I 20( ESC SUBTOTAL: 30% CONTINGENCY & MOBILIZATION: ESCTOTAL: COLUMN: #_of· I CosL._ 11 2422 11 2550 11 690 1J 1035 1 ( 2929 11 2990 1 ( 1955 $ 14,570.90 $ 4,371.27 $ 18,942.17 A Unit prices updated: 02/12/02 Version: 04/22/02 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet $ 8.53 $ 0.36 $ 8,876.16 Excavation -bulk I$ 1.50 $ 4.06 $ 18.55 $ 13.44 $ 1,271.81 $ 12.12 $ 22.57 $ 25.48 $ 37.85 $ 54.31 $ 74.85 $ 132.48 $ 2.02 $ 0.95 $ 135.13 $ 2.88 round I s 7.46 $ 788.26 $ 1,556.64 $ 85.18 lTrail, 4" chin""" wood Is 7.59 $ 8.33 Trail, 4" top course $ 8.19 Wall, retaining, concrete $ 44.16 Wall, rockery $ 9.49 Page 3 of 9 SUBTOTAL ·Kee 27A authorizes only one bond reduction. h"'""'"'hAW~ht CY I 431 SY Acre CY CY l 481 LF LF Each LF CY CY j 7oj CY SY SY SY SY SY 4001 Eachj 1j Each SY Dav 1 Acre HR 40 SY SY SY SF SF 366.791 1801 1,535.401 194.881 2001 812.ool __ \783.801 2201 5,605.601 380.00I 16401 1,558.ool 135.13j I J 788.261 21 1,s1e.5il I I J 3,407.20 I 1 l __L,336.86 ___1b942.12 ,...,.,ti>"""'''"~ ·~· ""'~:··-~··-,. -. ' 51 101 sol 101 21 11 1.51 2001 Quantity Complet8d __LBoncl Reduction)• Quant. leome1e1e1 Cost 562.00 42.65 40.60 1,274.00 9.5cil 270.26j 788.261 2,334.96j 1,898.ool _ ___L,220.23 Unit prices updated: 02112102 Version: 4/22102 Report Date: 1013012008 Site Improvement Bond Quantity Worksheet $ 5.75 $ 1.38 $ 41.14 $ 30.03 Barricade, lvnP Ill ( Permanent ) $ 45.05 Curb & Gutter, rolled $ 13.27 Curb & Gutter, vertical $ 9.69 Curb and Gutter, demolition and disoosal $ 13.58 Curb, extruded asphalt $ 2.44 $ 2.56 $ 1.85 Sawcut, concrete, per 1" deoth $ 1.69 Sealant, asphalt $ 0.99 Shoulder, AC, I see AC road unit nrice ) $ - Shoulder, aravel, 4" thick $ 7.53 Sidewalk, 4" thick $ 30.52 Sidewalk, 4" thick, demolition and disoosal $ 27.73 lSidewalk, 5" thick $ 34.94 $ 34.65 $ 85.28 $ 5.82 $ 2.38 $ 0.25 Page 4 of 9 SUBTOTAL '*KCC 27A authorizes only one bond reduction. hnndotvwksht 1~:j .... "1111 , •• -.,,,.,,_ 1,,;,......,,,, ":'' ~-- SY SY SY l 151 617.10 LF LF LF 1 T I 4041 5,361.08 LF J 209J _2,025.21 LF LF LF LF I 2101 388.50 LF LF I 2101 207.90 SY SY SY I 1201 3,662.401 1001 3,052.00 SY SY SY Each Each SF LF I 18001 450.001 17,701.11 _!l,413.08 Bond Reduction" Quanl Complete Coat Unit prices updated: 02112102 Version: 4/22/02 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet For KCRS '93, (additional 2.5" base) add: IAC Overt=, 1 .5" AC $ 7.39 AC Overtav, 2" AC $ 8.75 AC Road, 2", 4" rock, First 2500 SY $ 17.24 AC Road, 2", 4" rock, Qtv. over 2500SY $ 13.36 AC Road, 3", 4" rock, First 2500 SY $ 19.69 AC Road, 3", 4" rock, Qtv. over 2500 SY $ 15.81 AC Road, 5", First 2500 SY $ 14.57 AC Road, 5", Qtv. Over 2500 SY $ 13.94 AC Road, 6", First 2500 SY $ 16.76 $ 16.12 $ 9.21 Gravel Road, 4" rock, First 2500 SY $ 11.41 Gravel Road, 4" rock, Qtv. over 2500 SY $ 7.53 PCC Road, 5", no base, over 2500 SY $ 21.51 PCC Road, 6", no base, over 2500 SY $ 21.87 Thickened Edge $ 6.89 Page 5 of9 SUBTOTAL ·KCC 27A authorizes only one bond reduction. hnmintvwk~ht SY I 45_01 3,325.50 SY SY I I I 1101 1,896.401 201 SY SY SY SY SY SY j 2001 _ _____1,352.ool 7001 11,n2.ool 201 SY SY SY SY SY SY LF T 50T 344.501 __ 7,022.00 __ 13,628.40 344.80 335.20 680.00 Bond Reduction• ,Quant tomp~ Cost Unit prices updated: 02112102 Version: 4/22102 Report Date: 10/3012008 Site Improvement Bond Quantity Worksheet Bond Reduction• Quant. Complete Cost Access Road, R/0 $ 16.74 SY I I I 451 753.30 Bollards -fixed $ 240.74 Each Bollards -removable $ 452.34 Each 2 904.68 • (CBs include frame and lid) --- $ 1,257.64 Each I l l 31 ~-3,772.92 $ 1,433.59 Each $ 2,033.57 Each 1-1T 2,033.571 21 4,067.141 $ 436.52 FT I l l 15} 6,547.801 $ 2,192.54 Each $ 486.53 FT $ 2,351.52 Each $ 536.54 FT $ 3,212.64 Each for additional depth over 4' $ 692.21 FT !Throuoh-curb Inlet Framework (Add) $ 366.09 Each Cleanout, PVC, 4" $ 130.55 Each Cleanout, PVC, 6" $ 174.90 Each [ I I I I 71 1,224.30 Cleanout, PVC, 8" $ 224.19 Each Culvert, PVC, 4" $ 8.64 LF Culvert, PVC, 6" $ 12.60 LF Culvert, PVC, 8" $ 13.33 LF Culvert, PVC, 12" $ 21.n LF Culvert, CMP, 8" $ 17.25 LF Culvert, CMP, 12" $ 26.45 LF Culvert, CMP, 15" $ 32.73 LF Culvert, CMP, 18" $ 37.74 LF Culvert, CMP, 24" $ 53.33 LF Culvert, CMP, 30" $ 71.45 LF Culvert, CMP, 36" $ 112.11 LF Culvert, CMP, 48" $ 140.83 LF Culvert, CMP, 60" $ 235.45 LF Culvert, CMP, 72" $ 302.58 LF Page 6 of9 SUBTOTAL 2,033.57 ~045.84 ~_1_,224.30 Unit prices updated: 02/12/02 *KCC 27A authorizes only one bond reduction. Version: 4/22/02 hnnrintvwk,;ht Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet Culvert, Concrete, 8" $ 21.02 Culvert, Concrete, 12" $ 30.05 Culvert, Concrete, 15" $ 37.34 Cutvert, Concrete, 18" $ 44.51 Culvert, Concrete, 24" $ 61.07 Culvert, Concrete, 30" $ 104.18 Culvert, Concrete, 36" $ 137.63 Culvert, Concrete. 42" $ 158.42 Culvert, Concrete, 48" $ 175.94 Culvert, CPP, 6" $ 10.70 Culvert, CPP, 8" $ 16.10 Culvert, CPP, 12" $ 20.70 Culvert, CPP, 15" $ 23.00 Culvert, CPP, 18" $ 27.60 Culvert, CPP, 24" $ 36.80 Culvert, CPP, 30" $ 48.30 $ 55.20 $ 8.08 1,436 base+) Is 25.99 $ 22.60 $ 2.40 hnfiltration pond testina $ 74.75 Mid-tank Access Riser, 48" dia, 6' deeo $ 1,605.40 Pond Overflow Soillwav $ 14.01 Restrlctor/011 Separator, 12" $ 1,045.19 Restrictor/Oil Separator, 15" $ 1,095.56 $ 1,146.16 $ 39.08 Tank End Reducer f36" diameter) $ 1,000.50 Trash Rack, 12" $ 211.97 Trash Rack, 15" $ 237.27 Trash Rack, 18" $ 268.89 Trash Rack, 21" $ 306.84 Page 7 of 9 SUBTOTAL *KCC 27A authorizes only one bond reduction. hnnrlnruwkc::ht ~~~e: LF LF LF LF LF LF LF LF LF LF 480 LF LF 100 2070 200 4140 LF LF LF LF LF CY 10 80.8 LF LF SY HR Each SY Each 1045.19 Each Each CY Each Each Each Eacll Eacll 2150.8 5185.19 5136 5136 Bond Reduction• Quant Complete Cost Unit prices updated: 02/12/02 Version: 4122/02 Report Date: 10/30/2008 Site Improvement Bond Quantity Worksheet 2" AC, 2" top course rock & 4" borrow $ 15.84 I SY 2" AC, 1.5" top course & 2.5" base course $ 17.24 I SY 4" select borrow $ 4.55 Vault $ 7.00 I CF EA. LF EA. EA. EA. LF SF LF LF SUBTOTAL SUBTOTAL (SUM ALL PAGES): 30% CONTINGENCY & MOBILIZATION: Page 8 of9 "'KCC 27 A authorizes only one bond reduction. hnnrtntvwk~ht GRANDTOTAL: COLUMN: 22,512 -- 36,244.34 56,214.63 10,873.30 16,864.39 47,117.64 73,079.02 B C Prl\'ale Bond Reduction• ~.,~;ii< --r··-,------J--1 (,%;&~.:f 1"--i~_-~':1't:··. Quant.'-I -<"'Colt' ~ple!e Cost 157,584.00 157,584.00 171,844.53 51,553.36 223,397.89 D E Unit prices updated: 02112102 Version: 4122102 Report Date: 1013012008 Site Improvement Bond Quantity Worksheet Original bond computations prepared by: Name: Che~ Girard Date: 10/30/2008 PE Registration Number: 33190 Tel.#: 425-837-8083 Finn Name: GeoDatum 1 Inc. Address: 1505 NW Mall Street,_ls~aguah, WA 98027 Project No: L06S0006 ROAD IMPROVEMENTS & DRAINAGE FACILITIES FINANCIAL GUARANTEE REQUIREMENTS PERFORMANCE BOND• PUBLIC ROAD & DRAINAGE AMOUNT BOND• AMOUNT MAINTENANCE/DEFECT BOND· REQUIRED AT RECORDING OR Stabilization/Erosion Sediment Control (ESC) (A) $ 18,942.2 TEMPORARY OCCUPANCY ••• Existing Right-of-Way Improvements (B) Future Public Road Improvements & Drainage Facilities (C) Private Improvements (D) Calculated Quantity Completed $ 47,117.6 $ 73,079.0 $ 223,397.9 Total Right-of Way and/or Site Restoration Bond*r' (First $7,500 of bond• shall be cash.) (A+B) $ 66,059.8 (E) $ Performance Bond* Amount (A+B+C+D) = TOTAL (T) $ 362,536.7 Tx0.30 $ 108,761.0 OR Minimum bond' amount 1s $1000. Reduced Performance Bond* Total ••• (T-E) $ 362,536.7 Use larger of fx30% or ( t -E} Maintenance/Defect Bond• Total NAME OF PERSON PREPARING BONO• REDUCTION: • NOTE: The word "bond" as used in this document means any financial guarantee acceptable to King County. -NOTE: KCC 27A authorizes right of way and site restoration bonds to be combined when both are required. Date: (B+C) x 0.25 = $ 30,049.2 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. 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 addltional perfomiance bond shall be J $ 296,476.9 l(C+D)-E REQUIRED BONO• AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY DOES Page 9 of9 hondatvwksht Unit prices updated: 02/12/02 Version: 4/22/02 Report Date: 10/30/2008 KING COV-iTY, WASHINCilON. SURFACE Wi'.TER DESIGN MANUAL STORMWATER FACILITY SU\1MARY SHEET ODES Permit Numbe1 LQl'S_ls.Q.j:3 (provide one Stormwater Facility Summary Sheet per Na1ural Discharge Location) Overview: Project Name _____ _ __ t1A:L,tj_l_ ]-J&)T __ ~fcf f_/d'([_ __ Date ___ 7/--:?CJ2/2Q~ Downstream Drainage Basins Major Basin Name ~~--fd VE-f<. Immediate Basin Name _ "'500$_ ~E..f..,K_ Flow Control: Flow Control Facility Name/NumberlZ~rJ ON/'dfx Vl}1)L-,T Facility Location llik-z::: __ A~-,S~f:,~ I 8_3fUJ QJj_ I I t,2-rH __A1LEc "Sf.. If none, Flow control provided in regional/shared facility (give location) No flow control required ________ Exemption number General Facility Information: Type/Number of detention facilities: Type/Number of infiltration facilities: ---~-ponds ___ ponds _J __ vaults ___ tanks tanks trenches Control Structure Location . I -~-E,tJO _ _af_: V.A:VL---T Nt.A:R 11&11:I /W£-CiJf,, fl.DN Type of Control Structure Li'¢ R.15£-:fZ Number of Orifices/Restrictions Size of Orifice/Restriction: No. I o. Ge II No.2 ~ lff;Q'_r _-_ No_3 A No_4 A~---- ----- Flow Control Performance Standard _ __1...-t,yf:.i, -2:_ 2005 Surface Water Design Manual 1 1/1/05 ~ING COUNTY, WASHINGTON, SURFACE WA !ER DESIGN MANUAi Live Storage Volume_ / 1, 6J?-, C,p'. Depth Volume Factor of Safety Number of Acres Served _ _j , o_t Number of Lots J _ Dam Safety Regulations (Washington State Department of Ecology) Reservoir Volume above natural grade ___ 1'J/Js____ _ Depth of Reservoir above natural grade _ ---Njfl_ _ --__ Facility Summary Sheet Sketch All detention, infiltration and water quality facilities must include a detailed sketch. ( 11 "x 17" reduced size plan sheets may be used) I /1/05 2005 Surface Water Design Manual KING COUNI \ WASHING roN SURFACE WATER DESl(iN MAJ\UAI Water Quality: Type/Number of water quality facilities/BMPs: biofiltration swale (regular/wet/ or continuous inflow) sand filter (basic or large) _ sand filter, linear (basic or large) _ combined detent10n/wetpond _____ sand filter vault (basic or large) (wetpond portion basic or large) combined detention/wetvault filter strip sand bed depth (inches) ------ stormwater wetland ------- _2(_ storm filter ______ flow dispersion ___ wetpond (basic or large) ----farm management plan _X __ wetvault -----landscape management plan ____ ls facility Lined? above ______ oil/water separator (baffle or coalescing plate) Liner? catch basin inserts: Manufacturer __ _ pre-settling pond ____ pre-settling structure: Manufacturer ---------- If so, what marker is used ____ high flow bypass structure (e.g., flow-splitter catch basin) source controls Design Information Water Quality design flow --~0.-~-~k~O~_Df~_cs~_ Water Quality treated volume (sandfilter) ------ Water Quality storage volume (wetpool) eeo,21 g:,F:.D _ "'4;o4t C-f. ftl.o/lD£f7 1;700 CF Facility Summary Sheet Sketch 2005 Surface Water Design Manual I /1/05 MALHI ?•LOT SHORT PLAT TIR 10/28/2008 J, :I GeoDatum Appendix B -Construction Storm Water Pollution Prevention Plan PAGE 28 oi:-28 Stormwater Pollution Prevention Plan Owner Harinder Bapla 950 I S 207th Pl Kent, WA 98031 For Malhi Short Plat Prepared For Northwest Regional Office 3190-160th Avenue SE Bellevue, WA 98008-5452 425-649-7000 Developer Operator/Contractor American Asian Construction, American Asian LLC Construction, LLC 950 I S 207th Pl 950 I S 207th Pl Kent, WA 98031 Kent, WA 98031 Project Site Location 18311 116th Ave SD, Renton, WA 98058 Certified Erosion and Sediment Control Lead Cheryl Girard (425) 837-8083 SWPPP Prepared By GeoDatum, Inc. 1505 NW Mall St. Issaquah, WA 98027 (425) 837-8083 Chris Wadsworth, Civil Designer SWPPP Preparation Date 09/18/08 Approximate Project Construction Dates Fall 2008 Spring 2009 Contents 1.0 Introduction ............................................................................................................................... 1 2.0 Site Description ........................................................................................................................ 3 2.1 Existing Conditions ........................................................................................................... 3 2.2 Proposed Construction Activities ...................................................................................... 3 3.0 Construction Stormwater BMPs ............................................................................................... 5 3.1 The 12 BMP Elements ....................................................................................................... 5 3.1.1 Element #I -Mark Clearing Limits ................................................................ 5 3 .1.2 Element #2 -Establish Construction Access ................................................... 5 3 .1.3 Element #3 -Control Flow Rates .................................................................... 6 3 .1.4 Element #4 -Install Sediment Controls .......................................................... 6 3 .1.5 Element #5 -Stabilize Soils ............................................................................ 7 3.1.6 Element #6 -Protect Slopes ............................................................................ 8 3.1.7 Element #7-Protect Drain Inlets .................................................................... 8 3.1.8 Element #8 -Stabilize Channels and Outlets ................................................ 10 3.1.9 Element #9-Control Pollutants ................................................................... .10 3. I. IO Element # 10 -Control Dewatering ............................................................... 13 3 .1.11 Element # 11 -Maintain BMPs ..................................................................... .14 3 .1.12 Element # 12 -Manage the Project ................................................................ 14 3.2 Site Specific BMPs .......................................................................................................... 16 3.3 Additional Advanced BMPs ............................................................................................ 17 4.0 Construction Phasing and BMP Implementation ................................................................... 17 5.0 Pollution Prevention Team ...................................................................................................... 18 5.1 Roles and Responsibilities ............................................................................................... 18 5.2 Team Members ................................................................................................................ 19 6.0 Site Inspections and Monitoring ............................................................................................. 19 6.1 Site Inspection ................................................................................................................. 19 6.1.1 Site Inspection Frequency .............................................................................. 20 . 6.1.2 Site Inspection Documentation ...................................................................... 20 6.2 Stormwater Quality Monitoring ...................................................................................... 20 6.2.1 Turbidity ........................................................ Error! Bookmark not defined. 6.2.2 pH ................................................................................................................... 20 7.0 Reporting and Recordkeeping ................................................................................................ 21 7. I Recordkeeping ................................................................................................................. 21 7.1.1 Site Log Book ................................................................................................ 21 7 .1.2 Records Retention .......................................................................................... 22 7. I .3 Access to Plans and Records .......................................................................... 22 ii 7.1.4 Updating the SWPPP ..................................................................................... 22 7 .2 Reporting ......................................................................................................................... 22 7 .2.1 Discharge Monitoring Reports ....................................................................... 22 7.2.2 Notification ofNoncompliance ...................................................................... 22 7.2.3 Permit Application and Changes ................... Error! Bookmark not defined. Appendix A -Site Plans ......................................................................................................... 24 Appendix B -Construction BMPs ......................................................................................... 28 Appendix C -Alternative BMPs ............................................................................................ 29 Appendix D -General Permit ................................................................................................ 30 Appendix E-Site Inspection Forms (and Site Log) ............................................................. .30 Appendix F -Engineering Calculations ................................................................................ .40 Appendix A Site plans • Vicinity map (with all discharge points) • Site plan with TESC measures Appendix B Constrnction BMPs • Possibly reference in BMPs, but likely it will be a consolidated list so that the applicant can photocopy from the list from the SWMM. Appendix C Alternative Construction BMP list • List ofBMPs not selected, but can be referenced if needed in each of the 12 elements Appendix D General Permit Appendix E Site Log and Inspection Forms Appendix F Engineering Calculations (if necessary) • Flows, ponds, etc ... iii Stormwater Pollution Prevention Plan 1.0 Introduction This Stormwater Pollution Prevention Plan (SWPPP) has been prepared as part of the NPDES stormwater permit requirements for the Malhi Short Plat construction project in Renton, Washington. The site is located in Renton, east of State Highway WA-515. The existing site is a ! . I-acre lot with a house and detached garage. The proposed development consists of a 7-Lot short plat, storm water detention/water quality facility, construction of a new residential street and cul-de-sac with sidewalk and landscaping. Construction activities will include demolition, excavation, grading and relocation of onsite services/utilities. The purpose of this SWPPP is to describe the proposed construction activities and all temporary and permanent erosion and sediment control (TESC) measures, pollution prevention measures, inspection/monitoring activities, and recordkeeping that will be implemented during the proposed construction project. The objectives of the SWPPP are to: 1. Implement Best Management Practices (BMPs) to prevent erosion and sedimentation, and to identify, reduce, eliminate or prevent storm water contamination and water pollution from construction activity. 2. Prevent violations of surface water quality, ground water quality, or sediment management standards. 3. Prevent, during the construction phase, adverse water quality impacts including impacts on beneficial uses of the receiving water by controlling peak flow rates and volumes of storm water runoff at the Permittee's outfalls and downstream of the outfalls. This SWPPP was prepared using the Ecology SWPPP Template downloaded from the Ecology website on July 2, 2005. The SWPPP is based on the requirements set forth in the Construction Stormwater General Permit, Stormwater Management Manual for Western Washington (SWMMWW 2005). The report is divided into seven main sections with several appendices that include stormwater related reference materials. The topics presented in each of the main sections are: • • Section 1 -INTRODUCTION. This section provides a summary description of the project, and the organization of the SWPPP document. Section 2-SITE DESCRIPTION. This section provides a detailed description of the existing site conditions, proposed construction activities, and calculated stormwater flow rates for existing conditions and post- construction conditions. • • Stormwater Pollution Prevention Plan Section 3 -CONSTRUCTION BMPs. This section provides a detailed description of the BMPs to be implemented based on the 12 required elements of the SWPPP (SWMMEW 2004). Section 4-CONSTRUCTION PHASING AND BMP IMPLEMENTATION. This section provides a description of the timing of the BMP implementation in relation to the project schedule. • Section 5 -POLLUTION PREVENTION TEAM. This section identifies the appropriate contact names ( emergency and non-emergency), monitoring personnel, and the onsite temporary erosion and sedimentation control inspector • • Section 6 -INSPECTION AND MONITORING. This section provides a description of the inspection and monitoring requirements such as the parameters of concern to be monitored, sample locations, sample frequencies, and sampling methods for all stormwater discharge locations from the site. Section 7 -RECORDKEEPING. This section describes the requirements for documentation of the BMP implementation, site inspections, monitoring results, and changes to the implementation of certain BMPs due to site factors experienced during construction. Supporting documentation and standard forms are provided in the following Appendices: Appendix A -Site plans Appendix B -Construction BMPs Appendix C -Alternative Construction BMP list Appendix D -General Permit Appendix E -Site Log and Inspection Forms Appendix F -Engineering Calculations 2 Stormwater Pollution Prevention Plan 2.0 Site Description 2.1 Existing Conditions The proposed site is located east of State Highway WA-515 in Renton, Washington. A site vicinity map is located in Appendix A. The site is 1.18 acres in size and contains a house and detached garage in the existing condition. The topography of the site and surrounding properties gently slopes to the northeast. Surface soils consist of silty sandy loam. There are no erosion hazard areas, wetlands, streams, steep slopes, landslide hazard areas, or any other critical areas on the site. 2.2 Proposed Construction Activities The proposed development consists of a 7-Lot short plat, stormwater detention/water quality vault, construction of a new residential street and cul-de-sac with a sidewalk and landscaping. A combined stormwater detention and wetvault will be constructed in the northeast corner of the site. New sanitary, electrical, gas, and storm drain utilities will also be constructed. Construction activities will include site preparation, TESC installation, demolition of the existing house and detached garage structures, excavation for the building foundations and pre-cast concrete storm water vault, site-wide grading, and street construction. The schedule and phasing ofBMPs during construction is provided in Section 4.0. Storm water runoff volumes were calculated using the King County Runoff Time Series (KCRTS). The temporary sedimentation pond that will be used during construction was designed using the 2-year storm event since construction will not occur over a long time-frame (approximately six months). The combined detention and wetvault was designed using the 2005 King County Surface Water Design Manual chapter 6.4.1.1 method of analysis. This method is based on the precipitation for the mean annual storm in the area. The detention volume was designed by matching pre and post construction flows and durations for 50 percent of the 2-year flow through the SO-year flow. After all new utilities are installed, the site will be graded and paved. The following summarizes details regarding site areas: • Total site area: • Percent impervious area before construction: 3 1.81 acres 7.32 % Stormwater Pollution Prevention Plan • • • • • • • • • Percent impervious area after construction: Disturbed area during construction: Disturbed area that is characterized as impervious (i.e., access roads, staging, parking): 2-year stormwater runoff peak flow prior to construction (entirely forested): I 0-year storm water runoff peak flow prior to construction (entirely forested): 2-year storm water runoff peak flow during construction: I 0-year stormwater runoff peak flow during construction: 2-year stormwater runoff peak flow after construction: I 0-year storm water runoff peak flow after construction: Stormwater flow calculations are provided in Appendix F. 4 63.56 % 1.18 acres 0.75 acres 0.033 cfs 0.057 cfs 0.22 cfs 0.265 cfs 0.016 cfs 0.057 cfs Stormwater Pollution Prevention Plan 3.0 Construction Stormwater BMPs 3.1 The 12 BMP Elements 3.1.1 Element #1 -Mark Clearing Limits To protect adjacent properties and to reduce the area of soil exposed to construction, the limits of construction will be clearly marked before land-disturbing activities begin. Trees that are to be preserved, as well as all sensitive areas and their buffers, shall be clearly delineated, both in the field and on the plans. In general, natural vegetation and native topsoil shall be retained in an undisturbed state to the maximum extent possible. The BMPs relevant to marking the clearing limits that will be applied for this project include: • • • • Stake and Wire Fence (BMP C104) Filter Fabric Fence Orange construction fence Labeled flagging . To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.2 Element #2 -Establish Construction Access Construction access or activities occurring on unpaved areas shall be minimized, yet where necessary, access points shall be stabilized to minimize the tracking of sediment onto public roads, and wheel washing, street sweeping, and street cleaning shall be employed to prevent sediment from entering state waters. All wash wastewater shall be controlled on site. The specific BMPs related to establishing construction access that will be used on this project include: • Stabilized Construction Entrance (BMP Cl OS) Alternate construction access BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and 5 Stormwater Pollution Prevention Plan Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.3 Element #3 -Control Flow Rates In order to protect the properties and waterways downstream of the project site, storm water discharges from the site will be controlled. The specific BMPs for flow control that shall be used on this project include: • Sediment Trap (BMP C240) • Detention Vault Alternate flow control BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP( s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. The project site is located west of the Cascade Mountain Crest. As such, the project must comply with Minimum Requirement 7 (Ecology 2005). In general, discharge rates of storm water from the site will be controlled where increases in impervious area or soil compaction during construction could lead to downstream erosion, or where necessary to meet local agency storm water discharge requirements ( e.g. discharge to combined sewer systems). 3.1.4 Element #4 -Install Sediment Controls All storm water runoff from disturbed areas shall pass through an appropriate sediment removal BMP before leaving the construction site or prior to being discharged to an infiltration facility. The specific BMPs to be used for controlling sediment on this project include: • • • • Silt Fence (BMP C233) Sediment Trap {BMP C240) Storm Drain Inlet Protection (BMP C220) Detention Vault 6 Stormwater Pollution Prevention Plan Alternate sediment control BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. In addition, sediment will be removed from paved areas in and adjacent to construction work areas manually or using mechanical sweepers, as needed, to minimize tracking of sediments on vehicle tires away from the site and to minimize washoff of sediments from adjacent streets in runoff. Whenever possible, sediment laden water shall be discharged into onsite, relatively level, vegetated areas (BMP C240 paragraph 5, page 4-102). In some cases, sediment discharge in concentrated runoff can be controlled using permanent stormwater BMPs (e.g., infiltration swales, ponds, trenches). Sediment loads can limit the effectiveness of some permanent storm water BMPs, such as those used for infiltration or biofiltration; however, those BMPs designed to remove solids by settling (wet ponds or detention ponds) can be used during the construction phase. When permanent stormwater BMPs will be used to control sediment discharge during construction, the structure will be protected from excessive sedimentation with adequate erosion and sediment control BMPs. Any accumulated sediment shall be removed after construction is complete and the permanent stormwater BMP will be restabilized with vegetation per applicable design requirements once the remainder of the site has been stabilized. The following BMPs will be implemented as end-of-pipe sediment controls as required to meet permitted turbidity limits in the site discharge(s). Prior to the implementation of these technologies, sediment sources and erosion control and soil stabilization BMP efforts will be maximized to reduce the need for end-of-pipe sedimentation controls. • • 3.1.5 Temporary Sediment Trap (BMP C241) Utilize Proposed Stormwater Vault Element #5 -Stabilize Soils Exposed and unworked soils shall be stabilized with the application of effective BMPs to prevent erosion throughout the life of the project. The specific BMPs for soil stabilization that shall be used on this project include: • Cover measures (using straw, platic sheeting, etc.) 7 Stormwater Pollution Prevention Plan • Placing Grass Seed Alternate soil stabilization BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. The project site is located west of the Cascade Mountain Crest. As such, no soils shall remain exposed and unworked for more than 7 days during the dry season (May 1 to September 30) and 2 days during the wet season (October 1 to April 30). Regardless of the time of year, all soils shall be stabilized at the end of the shift before a holiday or weekend if needed based on weather forecasts. In general, cut and fill slopes will be stabilized as soon as possible and soil stockpiles will be temporarily covered with plastic sheeting. All stockpiled soils shall be stabilized from erosion, protected with sediment trapping measures, and where possible, be located away from storm drain inlets, waterways, and drainage channels. 3.1.6 Element #6 -Protect Slopes All cut and fill slopes will be designed, constructed, and protected in a manner that minimizes erosion. The following specific BMPs will be used to protect slopes for this project: • Filter fabric fence and cover measures will be utilized. There is very little slope across this site. Alternate slope protection BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.7 Element #7 -Protect Drain Inlets There are no storm drain inlets near the site that could potentially receive surface runoff from the construction site. 8 Stormwater Pollution Prevention Plan All storm drain inlets and culverts made operable during construction shall be protected to prevent unfiltered or untreated water from entering the drainage conveyance system. However, the first priority is to keep all access roads clean of sediment and keep street wash water separate from entering storm drains until treatment can be provided. Storm Drain Inlet Protection (BMP C220) will be implemented for all drainage inlets and culverts that could potentially be impacted by sediment-laden runoff on and near the project site. The following inlet protection measures will be applied on this project: Drop Inlet Protection • • • • • Excavated Drop Inlet Protection Block and Gravel Drop Inlet Protection Gravel and Wire Drop Inlet Protection Catch Basin Filters Alternative BMP not included in the SWMMWW (2005) or SWMMEW (2004) Curb Inlet Protection Wooden Weir • • Block and Gravel Curb Inlet Protection Alternative BMP not included in the SWMMWW (2005) or SWMMEW {2004) Culvert Inlet Protection Culvert Inlet Sediment Trap Alternative BMP not included in the SWMMWW (2005) or SWMMEW (2004) If the BMP options listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NP DES Permit (Appendix D), or if no BMPs are listed above but deemed necessary during construction, the Certified Erosion and Sediment Control Lead shall implement one or more of the alternative BMP inlet protection options listed in Appendix C. 9 Stormwater Pollution Prevention Plan 3.1.8 Element #8 -Stabilize Channels and Outlets Where site runoff is to be conveyed in channels, or discharged to a stream or some other natural drainage point, efforts will be taken to prevent downstream erosion. The specific BMPs for channel and outlet stabilization that shall be used on this project include: • • Sediment trap preceding surface water discharge Stormwater vault preceding surface water discharge Alternate channel and outlet stabilization BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. The project site is located west of the Cascade Mountain Crest. As such, all temporary on-site conveyance channels shall be designed, constructed, and stabilized to prevent erosion from the expected peak IO minute velocity of flow from a Type I A, I 0-year, 24-hour recurrence interval storm for the developed condition. Alternatively, the JO-year, I-hour peak flow rate indicated by an approved continuous runoff simulation model, increased by a factor of 1.6, shall be used. Stabilization, including armoring material, adequate to prevent erosion of outlets, adjacent stream banks, slopes, and downstream reaches shall be provided at the outlets of all conveyance systems. 3.1.9 Element #9 -Control Pollutants All pollutants, including waste materials and demolition debris, that occur onsite shall be handled and disposed of in a manner that does not cause contamination of storm water. Good housekeeping and preventative measures will be taken to ensure that the site will be kept clean, well organized, and free of debris. If required, BMPs to be implemented to control specific sources of pollutants are discussed below. Vehicles, construction equipment, and/or petroleum product storage/dispensing: • • All vehicles, equipment, and petroleum product storage/dispensing areas will be inspected regularly to detect any leaks or spills, and to identify maintenance needs to prevent leaks or spills. On-site fueling tanks and petroleum product storage containers shall include secondary containment. 10 • • • Stormwater Pollution Prevention Plan Spill prevention measures, such as drip pans, will be used when conducting maintenance and repair of vehicles or equipment. In order to perform emergency repairs on site, temporary plastic will be placed beneath and, ifraining, over the vehicle. Contaminated surfaces shall be cleaned immediately following any discharge or spill incident. Chemical storage: • • Any chemicals stored in the construction areas will conform to the appropriate source control BMPs listed in Volume IV of the Ecology stormwater manual. In Western WA, all chemicals shall have cover, containment, and protection provided on site, per BMP C 153 for Material Delivery, Storage and Containment in SWMMWW 2005 Application of agricultural chemicals, including fertilizers and pesticides, shall be conducted in a manner and at application rates that will not result in loss of chemical to storm water runoff. Manufacturers' recommendations for application procedures and rates shall be followed. Excavation and tunneling spoils dewatering waste: • Demolition: • • • Dewatering BMPs and BMPs specific to the excavation and tunneling {including handling of contaminated soils) are discussed under Element ill Dust released from demolished sidewalks, buildings, or structures will be controlled using Dust Control measures (BMP Cl40). Storm drain inlets vulnerable to stormwater discharge carrying dust, soil, or debris will be protected using Storm Drain Inlet Protection (BMP C220 as described above for Element 7). Process water and slurry resulting from sawcutting and surfacing operations will be prevented from entering the waters of the State by implementing Sawcutting and Surfacing Pollution Prevention measures (BMP Cl52}. Concrete and grout: 11 • Stormwater Pollution Prevention Plan Process water and slurry resulting from concrete work will be prevented from entering the waters of the State by implementing Concrete Handling measures (BMP C 151 ). Sanitary wastewater: • • Solid Waste: • Other: • Portable sanitation facilities will be firmly secured, regularly maintained, and emptied when necessary. Wheel wash or tire bath wastewater shall be discharged to a separate on- site treatment system or to the sanitary sewer as part of Wheel Wash implementation (BMP Cl06). Solid waste will be stored in secure, clearly marked containers . Other BMPs will be administered as necessary to address any additional pollutant sources on site. As per the Federal regulations of the Clean Water Act (CWA) and according to Final Rule 40 CFR Part 112, as stated in the National Register, a Spill Prevention, Control, and Countermeasure (SPCC) Plan is required for construction activities. A SPCC Plan has been prepared to address an approach to prevent, respond to, and report spills or releases to the environment that could result from construction activities. This Plan must: • • • • • • • Be well thought out in accordance with good engineering: Achieve three objectives -prevent spills, contain a spill that occurs, and clean up the spill: Identify the name, location, owner, and type of facility: Include the date of initial operation and oil spill history: Name the designated person responsible: Show evidence of approval and certification by the person in authority: and Contain a facility analysis . 12 Stormwater Pollution Prevention Plan 3.1.10 Element #10 -Control Dewatering All dewatering water from open cut excavation, tunneling, foundation work, trench, or underground vaults shall be discharged into a controlled conveyance system prior to discharge to a sediment trap or sediment pond. Channels will be stabilized, per Element #8. Clean, non- turbid dewatering water will not be routed through storm water sediment ponds, and will be discharged to systems tributary to the receiving waters of the State in a manner that does not cause erosion, flooding, or a violation of State water quality standards in the receiving water. Highly turbid dewatering water from soils known or suspected to be contaminated, or from use of construction equipment, will require additional monitoring and treatment as required for the specific pollutants based on the receiving waters into which the discharge is occurring. Such monitoring is the responsibility of the contractor. However, the dewatering of soils known to be free of contamination will trigger BMPs to trap sediment and reduce turbidity. At a minimum, geotextile fabric socks/bags/cells will be used to filter this material. Other BMPs to be used for sediment trapping and turbidity reduction include the following: • • • • • • Concrete Handling (BMP Cl SI) Temporary Sediment Pond (BMP C241) Construction Stormwater Chemical Treatment (BMP C250) Construction Stormwater Filtration (BMP C 251) Infiltration Use of a sedimentation bag, with outfall to a ditch or swale for small volumes oflocalized dewatering. • Alternative BMP not included in the SWMMWW (2005) or SWMMEW (2004) Alternate dewatering control BMPs are included in Appendix C as a quick reference tool for the onsite inspector in the event the BMP(s) listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit (Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit (as provided in Appendix D), the Certified Erosion and Sediment Control Lead will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 13 Stormwater Pollution Prevention Plan 3.1.11 Element #11 -Maintain BMPs All temporary and permanent erosion and sediment control BMPs shall be maintained and repaired as needed to assure continued performance of their intended function. Maintenance and repair shall be conducted in accordance with each particular BMP's specifications. Visual monitoring of the BMPs will be conducted at least once every calendar week and within 24 hours of any rainfall event that causes a discharge from the site. If the site becomes inactive, and is temporarily stabilized, the inspection frequency will be reduced to once every month. All temporary erosion and sediment control BMPs shall be removed within 30 days after the final site stabilization is achieved or after the temporary BMPs are no longer needed. Trapped sediment shall be removed or stabilized on site. Disturbed soil resulting from removal of BMPs or vegetation shall be permanently stabilized. 3.1.12 Element #12 -Manage the Project Erosion and sediment control BMPs for this project have been designed based on the following principles: • • • • • • • Design the project to fit the existing topography, soils, and drainage patterns. Emphasize erosion control rather than sediment control. Minimize the extent and duration of the area exposed . Keep runoff velocities low . Retain sediment on site . Thoroughly monitor site and maintain all ESC measures . Schedule major earthwork during the dry season . As this project site is located west of the Cascade Mountain Crest, the project will be managed according to the following key project components: Phasing of Construction • The construction project is being phased to the extent practicable in order to prevent soil erosion, and, to the maximum extent possible, the transport of sediment from the site during construction. 14 • Stormwater Pollution Prevention Plan Revegetation of exposed areas and maintenance of that vegetation shall be an integral part of the clearing activities during each phase of construction, per the Scheduling BMP (C 162). Seasonal Work Limitations • • • From October I through April 30, clearing, grading, and other soil disturbing activities shall only be permitted if shown to the satisfaction of the local permitting authority that silt-laden runoff will be prevented from leaving the site through a combination of the following: D Site conditions including existing vegetative coverage, slope, soil type, and proximity to receiving waters; and D Limitations on activities and the extent of disturbed areas; and D Proposed erosion and sediment control measures. Based on the information provided and/or local weather conditions, the local permitting authority may expand or restrict the seasonal limitation on site disturbance. The following activities are exempt from the seasonal clearing and grading limitations: D Routine maintenance and necessary repair of erosion and sediment control BMPs; D Routine maintenance of public facilities or existing utility structures that do not expose the soil or result in the removal of the vegetative cover to soil; and D Activities where there is I 00 percent infiltration of surface water runoff within the site in approved and installed erosion and sediment control facilities. Coordination with Utilities and Other Jurisdictions • Care has been taken to coordinate with utilities, other construction projects, and the local jurisdiction in preparing this SWPPP and scheduling the construction work. Inspection and Monitoring 15 • Stormwater Pollution Prevention Plan All BMPs shall be inspected, maintained. and repaired as needed to assure continued performance of their intended function. Site inspections shall be conducted by a person who is knowledgeable in the principles and practices of erosion and sediment control. This person has the necessary skills to: D Assess the site conditions and construction activities that could impact the quality of storm water, and D Assess the effectiveness of erosion and sediment control measures used to control the quality of stormwater discharges. • A Certified Erosion and Sediment Control Lead shall be on-site or on-call at all times. • Whenever inspection and/or monitoring reveals that the BMPs identified in this SWPPP are inadequate, due to the actual discharge of or potential to discharge a significant amount of any pollutant, appropriate BMPs or design changes shall be implemented as soon as possible. Maintaining an Updated Construction SWPPP • This SWPPP shall be retained on-site or within reasonable access to the site. • • The SWPPP shall be modified whenever there is a change in the design • construction, operation. or maintenance at the construction site that has, or could have, a significant effect on the discharge of pollutants to waters of the state. The SWPPP shall be modified if. during inspections or investigations conducted by the owner/operator, or the applicable local or state regulatory authority, it is determined that the SWPPP is ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site. The SWPPP shall be modified as necessary to include additional or modified BMPs designed to correct problems identified. Revisions to the SWPPP shall be completed within seven (7) days following the inspection. 3.2 Site Specific BMPs Site specific BMPs are shown on the TESC Plan Sheets and Details in Appendix A. These site specific plan sheets will be updated annually. 16 Stormwater Pollution Prevention Plan 3.3 Additional Advanced BMPs • The following BMPs are advanced and are only recommended if construction activities are complex enough to warrant them; or if the site has the potential for significant impacts to water quality. The following BMPs are directed at "end-of-pipe" treatment for sedimentation issues related to turbid runoff from construction sites. Effective BMPs are most often the simple BMPs, and focus on the minimization of erosion before sedimentation is an issue. The following BMPs will most likely be implemented only after other BMP options are exhausted, or if the construction activity is large and off-site sedimentation or turbid runoff occurs or is inevitable. • BMP C250: Construction Stormwater Chemical Treatment • BMP C251 : Construction Stormwater Filtration. 4.0 Construction Phasing and BMP Implementation The BMP implementation schedule will be driven by the construction schedule. The following provides a sequential list of the proposed construction schedule milestones and the corresponding BMP implementation schedule. The list contains key milestones such as wet season construction. The BMP implementation schedule listed below is keyed to proposed phases of the construction project, and reflects differences in BMP installations and inspections that relate to wet season construction. The project site is located west of the Cascade Mountain Crest. As such, the dry season is considered to be from May I to September 30 and the wet season is considered to be from October I to April 30. The BMP implementation schedule listed below is keyed to proposed phases of the construction project, and reflects differences in BMP installations and inspections that relate to wet season construction. The project site is located east of the Cascade Mountain Crest. As such, the dry season is considered to be from July I to September 30 and the wet season is considered to be from October 1 to June 30. • Estimate beginning of construction: 4/2008 • Estimate end of construction: 10/2008 • Install ESC measures: 4/2008 • Begin clearing and grubbing: 4/2008 • Demolish existing structures: 5/2008 17 Stormwater Pollution Prevention Plan • Excavate for new utilities: 6/2008 • Install storm drainage vault: 7/2008 • Grade proposed road: 7/2008 • Construct road and sidewalks: 8/2008 • Install landscaping features and grass seed: 9/2008 • Remove temporary ESC measures and clean vault: 10/2008 • Construction complete: 10/2008 5.0 Pollution Prevention Team 5.1 Roles and Responsibilities The pollution prevention team consists of personnel responsible for implementation of the SWPPP, including the following: • • • • • • Certified Erosion and Sediment Control Lead (CESCL) -primary contractor contact, responsible for site inspections (BMPs, visual monitoring, sampling, etc.); to be called upon in case of failure of any ESC measures. Resident Engineer -For projects with engineered structures only (sediment ponds/traps, sand filters, etc.): site representative for the owner that is the project's supervising engineer responsible for inspections and issuing instructions and drawings to the contractor's site supervisor or representative Emergency Ecology Contact -individual to be contacted at Ecology in case of emergency. Emergency Owner Contact -individual that is the site owner or representative of the site owner to be contacted in the case of an emergency. Non-Emergency Ecology Contact -individual that is the site owner or representative of the site owner than can be contacted ifreguired. Monitoring Personnel -personnel responsible for conducting water guality monitoring: for most sites this person is also the Certified Erosion and Sediment Control Lead. 18 Stormwater Pollution Prevention Plan 5.2 Team Members Names and contact information for those identified as members of the pollution prevention team are provided in the following table. Title Name(s) Phone Number Certified Erosion and Sediment Control Lead (CESCL) Cheryl Girard (425) 837-8083 Resident Engineer Cheryl Girard (425) 837-8083 Emergency Ecology Contact Not applicable Not applicable Emergency Owner Contact Harry Bapla (206) 478--0633 Non-Emergency Ecology Contact WSDOE (800) 826-7716 Monitoring Personnel Not applicable Not applicable 6.0 Site Inspections and Monitoring Monitoring includes visual inspection, monitoring for water quality parameters of concern, and documentation of the inspection and monitoring findings in a site log book. A site log book will be maintained for all on-site construction activities and will include: • • • A record of the implementation of the SWPPP and other permit requirements; Site inspections; and, Stormwater quality monitoring . For convenience, the inspection form and water quality monitoring forms included in this SWPPP include the required information for the site log book. This SWPPP may function as the site log book if desired, or the forms may be separated and included in a separate site log book. However, if separated, the site log book but must be maintained on-site or within reasonable access to the site and be made available upon request to Ecology or the local jurisdiction. 6.1 Site Inspection All BMPs will be inspected, maintained, and repaired as needed to assure continued performance of their intended function. Site inspections will be conducted by a person who is knowledgeable in the principles and practices of erosion and sediment control. The onsite inspector will have the skills to assess the potential for water quality impacts as a result of the type of construction activities occurring on site, and the knowledge of the appropriate and effective ESC measures needed to control the quality of stormwater discharges. 19 Stormwater Pollution Prevention Plan All BMPs will be inspected, maintained, and repaired as needed to assure continued performance of their intended function. The inspector will be a Certified Erosion and Sediment Control Lead (CESCL) per BMP Cl 60. The name and contact information for the CESCL is provided in Section 5 of this SWPPP. Site inspection will occur in all areas disturbed by construction activities and at all stormwater discharge points. Storm water will be examined for the presence of suspended sediment, turbidity, discoloration, and oily sheen. The site inspector will evaluate and document the effectiveness of the installed BMPs and determine ifit is necessary to repair or replace any of the BMPs to improve the quality of storm water discharges. All maintenance and repairs will be documented in the site log book or forms provided in this document. All new BMPs or design changes will be documented in the SWPPP as soon as possible. 6.1.l Site Inspection Frequency Site inspections will be conducted at least once a week and within 24 hours following any rainfall event which causes a discharge of storm water from the site. For sites with temporary stabilization measures, the site inspection frequency can be reduced to once every month. 6.1.2 Site Inspection Documentation The site inspector will record each site inspection using the site log inspection forms provided in Appendix E. The site inspection log forms may be separated from this SWPPP document, but will be maintained on-site or within reasonable access to the site and be made available upon request to Ecology or the local jurisdiction. 6.2 Stormwater Quality Monitoring The construction site does not discharge to an impaired water body, and is therefore not subject to the general water quality monitoring requirements set forth in the 2005 Construction Stormwater General Permit (Appendix D). 6.2.l Turbidity Sampling (if necessary) Sampling and monitoring for pH will occur during the phase of construction when concrete pouring will be conducted until fully cured (3 weeks from pour). Samples will be collected weekly at the sedimentation pond prior to discharge to surface water. Samples will be analyzed for pH using a calibrated pH meter and recorded in the site log book. The key benchmark pH value for stormwater is a maximum of8.0. If a pH greater than 8.0 is measured in the sedimentation pond that has the potential to discharge to surface water, the following steps will be conducted: 20 Stormwater Pollution Prevention Plan 1. Assess whether additional BMPs should be implemented and whether associated revisions to the SWPPP are necessary 2. Stop (detain) alJ discharges from leaving the site and entering surface waters or storm drains if the pH is greater than 8.5 3. Sample sedimentation pond the following day, and if the PH exceeds 8.0 for the second consecutive day, implement CO2 sparging treatment 4. Sample and measure pH daily until there are 3 consecutive pH measurements less than 8.0. 5. If there are 3 consecutive pH measurements greater than 8.0, notify Ecology by phone within 24 hours of the 3rd measurement exceeding a PH of8.0 (see Section 5.0 of this SWPPP for contact information) and initiate discussions with Ecology regarding additional treatment BMPs. 6. Describe inspection results and remedial actions that are taken in the site log book and in monthly discharge monitoring reports as described in Section 7.0 of this SWPPP. 7.0 Reporting and Recordkeeping 7.1 Recordkeeping 7 .1.1 Site Log Book A site log book will be maintained for all on-site construction activities and will include: • A record of the implementation of the SWPPP and other permit requirements; • Site inspections; and, • Storm water quality monitoring . For convenience, the inspection form and water quality monitoring forms included in this SWPPP include the required information for the site log book. 21 Stormwater Pollution Prevention Plan 7.1.2 Records Retention Records of all monitoring information (site log book, inspection reports/checklists, etc.), this Storm water Pollution Prevention Plan, and any other documentation of compliance with permit requirements will be retained during the life of the construction project and for a minimum of three years following the termination of permit coverage in accordance with permit condition SS.C. 7.1.3 Access to Plans and Records The SWPPP, General Permit, Notice of Authorization letter, and Site Log Book will be retained on site or within reasonable access to the site and will be made immediately available upon request to Ecology or the local jurisdiction. A copy of this SWPPP will be provided to Ecology within 14 days of receipt of a written request for the SWPPP from Ecology. Any other information requested by Ecology will be submitted within a reasonable time. A copy of the SWPPP or access to the SWPPP will be provided to the public when requested in writing in accordance with permit condition SS.G. 7.1.4 Updating the SWPPP In accordance with Conditions S3, S4.B, and S9.B.3 of the General Permit, this SWPPP will be modified if the SWPPP is ineffective in eliminating or significantly minimizing pollutants in stormwater discharges from the site or there has been a change in design, construction, operation, or maintenance at the site that has a significant effect on the discharge, or potential for discharge, of pollutants to the waters of the State. The SWPPP will be modified within seven days of determination based on inspection(s) that additional or modified BMPs are necessary to correct problems identified, and an updated timeline for BMP implementation will be prepared. 7.2 Reporting 7.2.1 Discharge Monitoring Reports Discharge Monitoring Report (DMR) forms will not be submitted to Ecology because water quality sampling is not being conducted at the site. 7.2.2 Notification of Noncompliance If any of the terms and conditions of the permit are not met, and it causes a threat to human health or the environment, the following steps will be taken in accordance with permit section SS.F: I. Ecology will be immediately notified of the failure to comply. 22 Stormwater Pollution Prevention Plan 2. Immediate action will be taken to control the noncompliance issue and to correct the problem. If applicable, sampling and analysis of any noncompliance will be repeated immediately and the results submitted to Ecology within five (5) days of becoming aware of the violation. 3. A detailed written report describing the noncompliance will be submitted to Ecology within five (5) days, unless requested earlier by Ecology. Any time turbidity sampling indicates turbidity is 250 nephelometric turbidity units (NTU) or greater or water transparency is 6 centimeters or less, the Ecology regional office will be notified by phone within 24 hours of analysis as required by permit condition S5.A (see Section 5.0 of this SWPPP for contact information). In accordance with permit condition S4.F .6.b, the Ecology regional office will be notified if chemical treatment other than CO2 sparging is planned for adjustment of high pH water (see Section 5.0 of this SWPPP for contact information). 23 ESQB-WI (m·) aaar, 1M '4enbe-5s1 lriJl'.i ll'Vi MN !iO!i L V4H,:,iLdl'>-II/, J~A;,\411S ""wn:a.eaoa~ 1· "" I ........ ,, L __________ ~ -------------- ... W096 ¥M 'NO!N3~ 3S '311\1 Hl9H ~1£91 N\lld NOl!N3113~d NOl!OlOd ~3!¥MNtKl!S NOl!:)011.LSNQ:) 1 Vld H:IOHS IHlVV'i ! ! i l I I -----------'3S '3AV Hl91"i----------------- ------------------------------- L,..J z ~ '- L,..J U) ~z- ' • i I I i. --·-· ... .. ,., ... ... ;1 ~ I t: 7 ~ t' ' ' l ' ol ,;,.ott!il ~'f.lS-«tlr.:, AS PER IONG COUNTY ROAD ST AND.i.RDS, Ofll'l[WAYS SHALL 8E PAVEO TO THE EDGE. Of" R-0-W PRIOR TO INSTALLATION Of TI,[ CONSTRUCllON ENTRANCE TO AV()IO DAMAGU1IG Of" THE ROADWAY ' . IT IS RECOWM[NOCO THAT THE ENTRANCE BE CROWNED SO THAT RUNOfT DRAINS Off THE PAO > GCOlEXTILE 12" MIN JIYPORMV GRAYE\ OONSJRtlCDON QURMCE ,n JOINTS IN FILTER FABRIC SHALL BE sPUCEO ,-T POSTS. USE STAPLES, WIRE RINGS, Ols EOJIYAL.DIT TO ATTACH FABRIC TO POSTS 6' MAX POST SP l,CIN<, t BE INCREASEO TO 8' If WIRE BACKING IS USED flLTCR FABRIC - ....::::::..... MINIMUM //- 4"•4" lRENCH BACKFILL TRENCH Iii,\'. NATIVE SOIL 01s J/4" WASH£0 Gf:IAll[L 7"•4" W000 POS1S; STEEL FUIIC( NOTE: fU.TCR FABRIC FENCES SHALL 8E POSTS, REBAR, OR ECilNVALENT INSTALLED Al.ONG CONTOUR '#liEHE\ER POSSl8LE SILT f[Na; OUM ,n $II I ffNCE NOJtS· 1. Sf[ ADJACDH OCTAIL 30--11)0 SIEVE SIZE FOR SILT fll . ..1,1 2. THE GCOTClCTllE USED MUST MEET THE fOlLOWING Sf'ECIFlCA'hONS· MIN -1 % ' ' AOS (ASTM 0-47!11) WA'TER PERMtTTilJITY (ASlM 0-4491) 50-100 SIEVE SIZE FOR OTHER FABRICS 0,02 S[C GRAS TCNSII..E S1'RENGTH (ASTM D-'46J2) Gf:IAB TENSILE ELONGATION {ASTM D-'46J2) ULTRAVIOLET RESISTANCE (ASlM 0-4355) 180 L8S MIN. FOR EXTilA STRENGTI-1 fABRK: 100 LBS POI MINUTE STANDARD STROIG'l\1 fABR1C 30S MAX. A CQPY Of Ttl[ MANUFACTURERS' f"8RIC SPEClflCATIONS MUST BE A.\/AILABt.£ ONSITE J. ST-'NOA.11:0 STRENG'TH FA.BRIC REWR[S WIRE BA.Cl(ING TO IHCREl<SE 'THE STRENGTH OF THE FENa:. WIRE BACl(ING OR a.OSEFI POST SPACING MAY BE REQUIRED ft::fl [)(TIIA SlRENGTl-1 FABRIC If f'IELD PERHlRMANCE WAAfV,NT'S A STRONGER FENCE 4. 'M£R£ Tl-IE FENCE IS INSTALL£D, lttE Sl0P£ SHALL 8( NO STEEPER lHAN 2H:1\I ~s, r~l(St=~~ ... G" LCATCH BASIN LGR.ATE \ OVERFLOW I ft 11 PORous eonow/ INSERT NQJES· NOTE: 11-IIS DE1/'1L IS ONLY fH~~Jl~frl HlNSEAR11~. o'tjF. ~STORA~~~,[ ME.ANS 101 ,,. AN~~O ANO CAN (ASILY MAINTAI~. 1} ANY ACC\IMULA.TED SEDIMENT ON OR AROIJNO 11-\E FILTER FABRIC PflOTECTION SHALL BE REMOVED IMME01ATELY. SEDIMENT SHALL NOT BE REMOVED 'MTH WATER, N'{D ALL S[OIMENT MUST 0[ DISPOSED Cf' AS fill ON SITE OR HA.UL.ED CfT SITC 2) ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL B( REMOVED \'o\'iEN n£ SEDIMENT HAS flll£0 ONE-THIRD Of THE A'\IAILA.81..£ STCflAG[ J) THE fll.TER MEOIA FOR THE INSERT SHALL BE CUAH£0 OR REPLACED Al LEAST MONTHLY. Cr'eJCH BASIN INSEBT CBOSS-SECDQN ,n SE 1/4, NE 1/4, SEC 32,TWN23N,RGE SE, W.M. 49!i.O SURFACE AREA OET[RIJINED Al loP Of wflR I'"'" l~_I EL ~ +98.50:t . -1.'. MIN 0\/ERJOW ~ ~-- .\. .,,- J/4"-1 :,• -,-· " . SHED GRAVEL 2"-4" ROCK RIPRAP ~-5'-5' 1 5' Mlt-1 FLJ.T aonoM GE:OTCXTILE NOT(: TRAP MAY BE fCfU14ED BY BERM OR BY PARTIAL OR CCMPl.£TE EXCA.YATION DISCHARGE t' CONVEYANd0 JIAS1uzEo l.EV[L SPREADER T\.ET OR SEDIMENT JBAP ·~ .~ ~IM , "'" -;;;/·""' X""' I 2~ MIN.I ! SWM.E SPACING DEPENDS ON SL<:PE CA..bENT MAINifNANCE STANDARDS· l. OMilACE R[SUI. TING FllOM RUNOFF ~ CONSTRLICTION ACTI'.'ITY SHALL BE REPAIRED INMEOIATEL Y. If THE FACIUTIES DO NOT RE:GIJI..ARLY RETAIN STORM RUNOFF. THE C.APACITY AND/~ FREQUENCY r:F" THE Oll<ES/SWALES SHA.LL BE INCREASED INlfRCfPP SWALE RQO( MUST COMPL£TEL Y COIJl:R TI-IE BOTTOM AND SIDES OF THE OITOI T 24" MIN. 1 Q1EQ( PAM ,.q~mss SECDQN L ., lME OISTN'ia: SUCH THAT POINTS A AJ\IO B ARE Cf' EQUAL EL.[W,TION CHf9C DeW PfINl '" NfJNJENA.Na: Of SIi UDON BA.RRtERS· 1 SILTATION 8ARRl(RS SHALL BE INSPECTED IMMEDIATELY AFTER EACH RJ\llllfALL AND Al LEAST DAILY OU!'llNG PROLONG(O RAINfi\,LL. CLOS[ .ATTENTION SHALL er PAIO TO TiiE REP.lt.lR or DAMAGED BAL£S. ENO RUNS ANO UNDERCUTTING BENEATH BALES. NECESSARY REPAIRS TO BARRIERS CM'! REPLACEMENT Of BALES SHAI. L BE ACCIJl,IPUSHED PROMPTLY SEDlt.lENT DEPOSITS SHOULO BE RB.IOVED AFTER EACH RAINFALL. THEY MUST er REMOVED WI-IEN THE LEVEL Of DEPOSITION REACHES APPROXIMATELY ONE-.HAI.J. THE HEIGHT Of" Tl-lE BARRIER ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE STRAW BALE BARRIER IS NO LONG£R REQUIRED SHALL B( ORESSED TO CONf()RM TO Tl-lE EXISTIN<. GRADE, PREPARED AND SEEDED. 1 fENCIN<. SH.ALL 6£ INSTAUED AS NECESSARY TO RESTRICT TR.•.mc TO THf CONSTIIUCTION ENTRAJ\ICE 'MiENEVER POSSIBLE, THE ENffi.ANCE SHAI..I. BE CONSTIIUCTEO ON A FlRM, CONPACTEO SUBGRAOE. THIS CAN SUB ST ANTI ALLY INCREASE THE EffECTI'o'ENESS Cf' THE PAD AND REDUCE TI-IE NEEO fOR MAINTENANCE INST.ALLATION: THE AREA Cf' TI-IE ENTRANCE SHOULD B( CLEARED Cf' !,U VECET.ATION, ROOTS, .ANO OTHER CEl.£CTICINABLE MATERIALS. Tli[ GRAVEL SHALL BE PLACED TO Tl-IE SPECIFIED OIM[NSl()NS ANY ~AINA(;[ FACIUTIES R[QUIREO BECAUSE Of W,t,SHINC SHOULD BE CONSTilUCTEO ACCCflOING TO SPECIFICATIONS IN THE PL.AN. If WASH RACKS ARE USED, 11-\EY SHCU.0 BE INST"l.l.[O ACCORDING TD MANUFACTURER'S sPECIFlCATlONS 4. GEOTCXTILE: A GRAB lDlSIL STRENGTH (.ASTM D 4751) 200 PSI MIJ\I B. GRAB TENSIL ELONGATION (ASlM O 46J2) JO,i; MAX. C. MUUEN BURST STRENGTH {ASlM D J7!16-8CIA) 400 PSI MIN O. AOS {AS1N O 4751) 20-45 {US STD SIE\/E SIZE). 5. AGGREGATE: 4" TO 6" a;IUSH£0 B.AI..LAST ROCK, OIIER FILTER FABRIC. 6. ENTIINfC[ DIMENSIONS: THE AGGREGATE L.AYER MUST BE AT LEAST 12 INC+IES lMICK IT M!JST EXTEND THE flll.t WIOTH OF lME VEHICULAR 1NGR£SS ANO EGRESS ARE,t, TH[ l[NGTH Of TH[ £NIBANCE MUST BE AT LEAST 100 FEET. 7. WAstilNG: tf CONDITIONS ON THE SITE A.RE SU01 THAT MOST Cf; THE MUD !S NOT REMOl/£0 FROIA VEHICLE TIMS BY CONTACT W.Tli n£ GRAVEL. lMEN Tl1E TIRES MUST BE WASHED BEFDFIE '-£HICU:S ENTER A PIJBUC ROAD. WASH WATCR MUST 9[ C.ARRED AWAY fll(M ENTRANCE TO A SETTLING AREA TO REMOVE SEDIMENT. A WASH RAO( M,t,Y Al.SC BE USED TO M.-.KE WASHING MORE C()N\l[NIENT AND EF'fCCTII/£. REOVIREO DURING W.N'TER CctlS'lRUCTION. B. MAINTENANCE: lME ENTRA.NCE SHALL BE MAINTAINED IN A CONDITION IIIHICH WIU P!l:EVEtH TRAO<l"G OR FLOW Of MUO ONTO PUBUC Rl(;HT-Of"-WAYS. THIS MAY REOUIFIE PERIODIC TOP OFIESSING WITH 2-INCtl STONE. AS CONDITIONS 0ENA.NQ, ANO REPNR A.ND/OR CL.£A.N OUT ANY STRVCT\.IRES USED TO TilAP SEOINENT. .Al..l MATOi1ALS SPtlLEO. DROPPED, WASHED OR TflA.CK[O FROM \Olla.ES ()tHO ROADWAY ~ INTO STORM DRAINS MUST BE REMO\'ED IMMEDIATELY. ERQSIQN .ym SEPIYOIT C!CWlBQt BfOOMYFNDfn CQ:,ISJR\PCDQN SECll.lfNc:e: 1, PRE-CONS'ffiUCll()N MEETING 2. POST SIGN WITH NAME .ANO PN()N[ N\JMBER Of" ESC SUPEFllJISOR (MAY BE CONSOLIDATED WllM n£ REOUIRED NOTICE OF CctlSlRUCTictl SIGN) J. FLAG OR FENCE ClEARING LIMITS 4. INST.Al..l CATCH BASIN PROTECTION If' REQUIR(O 5. GRADE ANO INSTALL CONSTIIUCTION ENTilANCE 6 lttSTALL PERIMETER PROTECTION(SILT fEMCE, BRUSH 8ARRIER, ETC) 7 CONSTRUCT SEDIMENT PONDS ANO TRAPS 8. GRADE A.NO STA.8IU2£ CONSTRUC11ctl ROAOS 9. CONSTRUCT WATER CONTR!l.S (tNTERCU'TOR DIKES, PIPE SL.OPE OR.AIHS, ETC)StMULTANIOUSLY 'MTH ClfARING A.ND GRM>ING FOR A'IO.l:CT OE\/ELoPMENT 10. MAINTAIN ERQSl(:1,1 CONTIIOL MEASURES IN ACCORDANCE WllM KING COVNTI STANOARDS ANO MANUf.AClURERS RECOliO,iENOATIONS 11. RELOCATC EROSION CONTROL WEA.SURES OR INSTALL NEW MEASURES SO TH.Al ,t,S SITE CONDITIONS Ol.ANCE THE EROSION A.NO SEDIMENT CONTRO. IS ALWAYS IN A.CCOROANCE Will-I 'THE KING COUNTY EROSION AND SO:.I.IENT CONTIIOL STN>IDAROS 12 COVER All. A.REAS THAT WIU 8E LIIIIWORl<ED FOR WORE THAN SEVEN 0.AYS DURING THE Df!Y SEASON OFI TWO OAYS DURING THC \ET SEASON 'MTH STIIAW, WOOD FIBER MULCH, COMPOST, PLAsnc SHEEllNG OR [OUIV.Al£NT 1J. STA81UZE A.1..1. A.REAS THAT REA.CH FINAL GRADE WTH1N SEVEN DAYS 14. SEEO OR SOD ANY !,FIE.AS TO REMAIN UNWOFll<EO FOR MOf!E lMAN lD DAYS 15 UPON COMPLETION tF THE PFIQ.l:CT, ALL OISTURB((J AREAS MUST BE STABILIZEO AHO BMP'S REM0',1[1) IF APPROPRIATC. SJBltc:nJAAL NQ][5 1. THESE PLANS ARE APPROVED FOR ST,t,NOARO ROAD ANO [)RAINA(;[ IW~OI/EMENTS ONLY. PL.A.NS FCfl STRUCTURES SUCH .AS BRIDGES, VAULTS. ANO RETAINING WALLS REOUIR[ SEPARATE RE'.'!EW ANO APPROVAL. BY OOCS PRIOR TO INSTRUCTIOO. {KCC 16.04.16.70, 14.20) 2. ROCl<ERIES AR£ CONSIOEREO To BE A METHOD OF e,.,..; ST.ABIUZATIOO ANO EROSION CONTROL. ROCl(ER1ES SNAJ..L NOT BE COOS'IRUCTEO TO SERVE M, RETAINING WA.1..1.S ALL ROCK[Rl[S IN COUNTY ROAD RIGHT-OF-WAY SHAU BE CONSTIIUCTED tN ACCORDANCE 'WITH I<~. RQCl(ERIES OUTSIDE OF THE ROAD RIGHT-OF-W,t,Y SHALL BE CONSlRUC'TEO IN ACCORDANCE 'MTH THE INTERNATIONAL BUILDING COO[. NOTE: KING COUNTY DOES APPRD'\IAL IS FOR STCfiM AND ROAD \MPROY(M(NTS ONLY AS SHOWN HEREON. KING COUNTY 0.0.E.S. -~ ~-lec,,,,,i.t .. C,,,,, $rillo~ a.in "· !.NC05. n i:,c,.noPIENT ENGlNOO'I c_.,,to: ~c.t. AWAO'll...i.lkit, { ! 1 E :, ... I'll C 0 Cl.I C, ·-!'.O .:;:; "°,..., ii~ 3, .c" ... z ~~ ~= ~~~ ~~ LI~\_. -I tmffll 1 n1 11 . I I ~I ii I ~ ;;: .... ~ 0 z I-< < 1:3 Lt.I co F-Ill "' 0 •O ...J ll. l-o:: 0 J: V) ~ < :::; z ~ i 15 < < l!c i!c lt 5 "' . 0::: 5 z~~ Q :;i ::! Ill - ffi 0 z < 8: ~ DRAFTER· PGjCOM DESIGNER: PG I ~ ~ "' § • s ~ ' ¥ i i " ~ "- PROJ. ENGR./SUR'II.; lr,IXP DATE: 9-29-De PROJECT NO.: 05294 SHEET C4 Of 11 1 ni:; c:: nnrn:; " "' ,. SI ",l',~,: S.-~ ' VICINITY MAP 25 Stormwater Pollution Prevention Plan .,, :, .. ,.,. ..... stPvu~yRd Sf 11!l(;lh P Stormwater Pollution Prevention Plan Appendix B -Construction BMPs Stake and Wire Fence (BMP Cl04) Stabilized Construction Entrance (BMP CI 05) Sediment Trap (BMP C240) Temporary Sediment Pond (BMP C241) Detention / Water Quality Vault Silt Fence (BMP C233) Storm Drain Inlet Protection (BMP C220) 26 Stormwater Pollution Prevention Plan Appendix C -Alternative BMPs The following includes a list of possible alternative BMPs for each of the 12 elements not described in the main SWPPP text. This list can be referenced in the event a BMP for a specific element is not functioning as designed and an alternative BMP needs to be implemented. Element #1 -Mark Clearing Limits Element #2 -Establish Construction Access Element #3 -Control Flow Rates Element #4 -Install Sediment Controls Advanced BMPs: Element #5 -Stabilize Soils Element #6 -Protect Slopes Element #8 -Stabilize Channels and Outlets Element #10 -Control Dewatering 27 Stormwater Pollution Prevention Plan Appendix D -General Permit 29 Stormwater Pollution Prevention Plan Appendix E -Site Inspection Forms (and Site Log) The results of each inspection shall be summarized in an inspection report or checklist that is entered into or attached to the site log book. It is suggested that the inspection report or checklist be included in this appendix to keep monitoring and inspection information in one document, but this is optional. However, it is mandatory that this SWPPP and the site inspection forms be kept onsite at all times during construction, and that inspections be performed and documented as outlined below. At a minimum, each inspection report or checklist shall include: a. Inspection date/times b. Weather information: general conditions during inspection, approximate amount of precipitation since the last inspection, and approximate amount of precipitation within the last 24 hours. c. A summary or list of all BMPs that have been implemented, including observations of all erosion/sediment control structures or practices. d. The following shall be noted: 1. locations of BMPs inspected, n. locations ofBMPs that need maintenance, 111. the reason maintenance is needed, iv. locations of BMPs that failed to operate as designed or intended, and v. locations where additional or different BMPs are needed, and the reason(s) why e. A description of stormwater discharged from the site. The presence of suspended sediment, turbid water, discoloration, and/or oil sheen shall be noted, as applicable. f. A description of any water quality monitoring performed during inspection, and the results of that monitoring. g. General comments and notes, including a brief description of any BMP repairs, maintenance or installations made as a result of the inspection. h. A statement that, in the judgment of the person conducting the site inspection, the site is either in compliance or out of compliance with the terms and conditions of the SWPPP and the NPDES 30 Stormwater Pollution Prevention Plan permit. If the site inspection indicates that the site is out of compliance, the inspection report shall include a summary of the remedial actions required to bring the site back into compliance, as well as a schedule of implementation. 1. Name, title, and signature of person conducting the site inspection; and the following statement: "I certify under penalty of Jaw that this report is true, accurate, and complete, to the best of my knowledge and belief'. When the site inspection indicates that the site is not in compliance with any terms and conditions of the NPDES permit, the Permittee shall take immediate action(s) to: stop, contain, and clean up the unauthorized discharges, or otherwise stop the noncompliance; correct the problem(s); implement appropriate Best Management Practices (BMPs), and/or conduct maintenance of existing BMPs; and achieve compliance with all applicable standards and permit conditions. In addition, if the noncompliance causes a threat to human health or the environment, the Permittee shall comply with the Noncompliance Notification requirements in Special Condition SS.F of the permit. Project Name: Inspector Name: Date: Inspection Type: Weather Site Inspection Form General Information Title: CESCL#: Time: o After a rain event o Weekly o Turbidity/transparency benchmark exceedance o Other Precipitation Since last inspection In last 24 hours Description of General Site Conditions: Inspection of BMPs Element 1: Mark aearing Limits BMP: Location Inspected y N 31 Problem/Corrective Action BMP: Location Inspected Functioning YN !YN NIP Element 2: Establish Construction Access BMP: Location BMP: Location Inspected y N Functioning IY N NIP Inspected Functioning YN !YN NIP Element 3: Control Flow Rates BMP: Location BMP: Location Inspected y N Functioning IY N NIP Inspected Functioning YN IYN NIP Element 4: Install Sediment Controls BMP: Location BMP: Location Inspected y N Inspected y N Functioning IY N NIP Functioning IYININIP1 32 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action BMP: Location Inspected Functioning YN IYN NIP BMP: Location Inspected Functioning YN IYN NIP BMP: Location Inspected Functioning YN IYN NIP Element 5: Stabilize Soils BMP: Location BMP: Location BMP: Location BMP: Location Inspected y N Inspected y N Inspected YN Inspected y N Functioning IY N NIP Functioning IYNNIP Functioning IYN NIP Functioning IYININIP1 33 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Element 6: Protect Slopes BMP: Location Inspected Functioning YN IYNNIP BMP: Location Inspected Functioning YN IYN NIP BMP: Location Inspected Functioning YN IYN NIP Element 7: Protect Drain Inlets BMP: Location Inspected Functioning Y N IY N NIP BMP: Location Inspected Functioning Y N IY N NIP BMP: Location Inspected Functioning YN IYNNIP Element 8: Stabilize Channels and Outlets BMP: Location Inspected Functioning 34 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action y N IY N NJP BMP: Location Inspected Functioning YN IYNNIP BMP: Location Inspected Functioning YN IYN NIP BMP: Location Inspected Functioning YN IYN NIP Element 9: Control Pollutants BMP: Location BMP: Location Inspected y N Functioning IY N NIP Inspected Functioning YN IYN NIP Element JO: Control Dewatering BMP: Location BMP: Inspected YN Functioning IY N NIP 35 Stormwater Pollution Prevention Plan Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Problem/Corrective Action Stormwater Pollution Prevention Plan Location Inspected Functioning YN [YN NIP Problem/Corrective Action BMP: Location Inspected Functioning YN IYNNIP Problem/Corrective Action Stormwater Dischar2es From the Site Observed? Problem/Corrective Action v[]J Location Turbidity ~ Discoloration Sheen Location Turbidity Discoloration Sheen 36 Stormwater Pollution Prevention Plan Water Qualitv Monitorin2 Was any water quality monitoring conducted? D Yes D No If water quality monitoring was conducted, record results here: If water quality monitoring indicated turbidity 250 NTU or greater; or transparency 6 cm or less, was Ecology notified by phone within 24 hrs? D Yes D No ~ If Ecology was notified, indicate the date, time, contact name and phone number below: Date: Time: Contact Name: Phone#: General Comments and Notes Include BMP repairs, maintenance, or installations made as a result of the insnection. Were Photos Taken? D Yes D No If nhotos taken, describe nhotos below: 37 Stormwater Pollution Prevention Plan Appendix F -Engineering Calculations 38 Stormwater Pollution Prevention Plan Storm Drainage Calculations: Historic Land Cover =: rm forest Total Site Area (including frontage): 51,380 SF-I 18 Acres of Till forest CREATE a new Time Series 1.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 predev. tsf Flow Frequency Analysis Time Series File:predev.tsf Project Location:Sea-Tac 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 Till Forest Till Pasture Till Grass Outwash Forest Outwash Pasture Outwash Grass Wetland Impervious ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank (CFS) (CFS) 0. 074 2 2/09/01 18,00 0.095 1 0.020 7 1/06/02 3,00 0.074 2 0.055 4 2/28/03 3,00 0.057 3 0.002 8 3/24/04 20,00 0.055 4 0.033 6 1/05/05 8,00 0.048 5 0.057 3 1/18/06 20,00 0.033 6 0.048 5 11/24/06 4:00 0.020 7 0.095 1 1/09/08 9,00 0.002 8 Computed Peaks 0.088 Developed -Detained CREATE a new Time Series 0.00 0.00 0.000000 Till Forest 0.00 0.00 0.000000 Till Pasture 0.43 0.00 0.000000 Till Grass 0.00 0.00 0.000000 Outwash Forest 0.00 0.00 0.000000 Outwash Pasture 0. 00 0.00 0.000000 Outwash Grass 0.00 0.00 0.000000 Wetland 0.75 0.00 0.000000 Impervious dev. tsf Flow Frequency Analysis Time Series File:dev.tsf Project Location:Sea-Tac Return Prob Period 100.00 0.990 25.00 0. 960 10.00 0.900 5.00 0.800 3.00 0.667 2.00 0.500 1. 30 0.231 1.10 0.091 50.00 0.980 ---Annual Peak Flow Rates--------Flow Frequency Analysis------- Flow Rate Rank Time of Peak -Peaks Rank Return Prob (CFS) (CFS) Period 0.220 6 2/09/01 2,00 0.445 1 100.00 0.990 0.180 8 1/05/02 16,00 0.283 2 25.00 0.960 0.265 3 2/27/03 7,00 0.265 3 10.00 0.900 0.195 7 8/26/04 2,00 0.235 4 5.00 0.800 0. 235 4 10/28/04 16,00 0.234 5 3.00 0.667 0.234 5 1/18/06 16,00 0.220 6 2.00 0.500 0.283 2 10/26/06 o,oo 0.195 7 1.30 0. 231 39 Stormwater Pollution Prevention Plan 0.445 1 1/09/08 6,00 computed Peaks Retention/Detention Facility 0.180 0.391 Type of Facility: Facility Length: Detention Vault 166.00 ft Facility Width, Facility Area: Effective Storage Depth: Stage O Elevation: Storage Volume: Riser Head: Riser Diameter: Number of orifices: orifice# Height (ft) 0.00 1. 65 Hyd 1 2 Top Notch Weir: Outflow Rating curve: Inf low Outflow 35.00 ft 5810. sq. ft 2.50 ft 493.60 ft 14525. cu. ft 2.50 ft 18 .00 inches 2 Full Head Diameter Discharge (in) (CFS) 0.69 0.020 1.37 0.047 None None Peak 8 Pipe Diameter (in) 4.0 Storage 1. 10 50.00 0. 091 0.980 Target Cale Stage Elev (Cu-Ft) (Ac-Ft) 1 0.45 ******* 0.29 2.55 496 .15 14810. 0.340 2 0.22 0.07 0.07 2.50 496.10 14533. 0.334 3 0.26 ******* 0.06 2.19 495.79 12741. 0.292 4 0.28 ******· 0.05 2.15 495.75 12507. 0.287 5 0.23 :le****** 0.03 1. 78 495.38 10341. 0.237 6 0.23 ******* 0.02 1.58 495.18 9161. 0. 210 7 0.18 ******* 0.02 1. 46 495.06 8506. 0.195 8 0.19 ******* 0.01 0.98 494. 58 5674. 0 .130 Route Time Series through Facility Inflow Time Series File:dev.tsf Outflow Time Series File:rdout Inflow/outflow Analysis Peak Inflow Discharge: 0.445 Peak Outflow Discharge: 0.295 Peak Reservoir Stage, 2.55 Peak Reservoir Elev: 496 .15 Peak Reservoir Storage: 14810. Flow Frequency Analysis Time Series File:rdout.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- Flow Rate Rank Time of Peak (CFS) 0.073 2 2/09/01 20,00 0.016 7 1/07/02 4,00 0.057 3 3/06/03 22,00 0. 013 8 8/26/04 7,00 0.016 6 1/08/05 5,00 0.035 5 1/19/06 o,oo 0.055 4 11/24/06 a,oo 0.295 1 1/09/08 10,00 Computed Peaks CFS at 6,00 on Jan 9 in Year 8 CFS at 10,00 on Jan 9 in Year 8 Ft Ft Cu-Ft 0.340 Ac-Ft -----Flow Frequency Analysis------- --Peaks --Rank Return Prob (CFS) (ft) Period 0.295 2.55 1 100.00 0.990 0.073 2.50 2 25.00 0.960 0.057 2.19 3 10.00 0.900 0.055 2.15 4 5.00 0.800 0.035 1.78 5 3.00 0.667 0.016 1. 58 6 2.00 0.500 0.016 1. 46 7 1. 30 0. 231 0.013 0.98 8 1.10 0. 091 0.221 2.53 50.00 0.980 40 rnoe-LE8 (Sltil LZ086 VM '4e11bim1 la<illS uer-i MN SOSI lo'~/11 J11~i> ll1d_l··AHl~llS ,.,wn:a.eaoa~ " .i1.~~ll ~=,u. ·• ri la.~ ::ii 3: Loi I{) ~ 0:: ~ N ! <'i I') • B '!" I . I ! • ! ,~ ~ Id I!: ~ ih~; IIH b. ~ i!t:.! ---I ! II ---------------- • • ' ~z~ ~· ; " ~2 i 5 • SJ."31'11'11Xl SJ(UPll ... ~ SJ.tanlllXI SJaa::>• ,WO</• ii SJ.N3fUIOQ SlQO:l• lilO/JJ/R ii 5.1"'3"'100 SlQO:lM ao/~1' --~ .. ! ~ i' • t -i .i ~ ! ,i~1 • • .a1.i d 1; ii I~ ;U sai ii ' I L-~~--_,,-J lll.086 VI#. 'NOlN3!1 3S 3/IV Hl.911 11£81 NVld ~VNIV!IO N!ICllS l V1d l~HS IHlVVi I -: I I ' I, 1: ' ., I ' I ! -.-·--... _-.su,s ______ : : !~--.. -·--------------. 18SII .i I ' 'Ii ·, I I I I ' ., I ii' I I r------------ 1 ,''lli$8,!. I I I :1 .... :;., 9~ I I I I 'I '',t, --·_"11511,!. ____ J • • II ; • ' • • ~ .. ::: ~ ! ~ I!, ...._ ~.o ff~ ''<0 .!, ll . ~-I u .....I "" ~6~ 8 ~ ff ~ Di -J ; i ii • I ' l 111'5. ~-~ ~ ~~e; ~ ci z°" ci I "Q! ~ u~ u,i\ z l !~~ 3 ·I u 8;~ 0 l J i z ~ ... ~ ~ -~ r ,i ; i S ' • I ~! ' ' ' ~I 31 ,1 1· ~I ~ 11 I ,i ! l!: SE 1/4, NE 1/4, SEC 32, TWN 23N, RGE 5E, W.M. l E I 1. I" . filj) . 09 DETENTION: REQUIRED 14,525CF. PROPOSED 14,812CF. WATER QUALITY: -· u·r~ REQUIRED 4,047CF. PROPOSED 7, 700CF. e- ~ ,_ "™ AT . oc ~ -"' ,M. -5"•11J' GRA.TEO ACCrS5 PAIIEL, TYP i I I ff I t I I -'"' ""' « ~ " - . I~ I • - I~} B ~ --P[III KCSIIOII 5T.....oMDS PEI ~ 5TlrMIARDS 7 --~1111 ~-...,, 24" MX£SS W-«J..E W/ 1!'11!,l lOCl(INI; llltG lrMI 00',o[R 24" ACCESS IIAlfiCI..!: W/ BOLT toom«.l llltG ANO ~ ,u-IRI IRI ---- ~ w.u. WAD $URF"AC[ nrv. • 496.,o--~ --:- 2.50" U'IEl'l,fORNJ£. BOTTCIW Of U'IE STCRM.I: ,· ""' "'t" ,,.._ = ... " f\ [l[Y. • 411l.llO L . .il.""' -'gg"'J~~~=, >-= ------ 487.13 ' L,· A'ifJWX SEDIIDll STORM£.. { . . 111 \_ 2•· ACCE'SS WoMKll w/ IQ.llJX:Ol(;:llltGlrMI~ .... !'£A l(CSIIOII STNfDARDS, TYP Pl AN 'y1EW 5CN..E: r-,o· MOIIIZCIIITAL. 24" ACCCS5 ll#ffll W/ ~·.10' GJl ... "TED -P[III K~ ST/rMINIOS r--,-,aw• !OJM IOl l I.DCJ(_9IG MtC ~-((MIi ---.1111 It --- ~ ----- -------- II I &11.SO -.,. 4".&0 ------- ·--- . - " ~ ~ 4(17.38 ·-· SECTION A $CAI.[: 1" .. 10'IIORIZONIH. SCAL.£: ,·-s· IOITlCAL. -- Q rooJ:-.... o. I\';') I"! • I •CU.. FLOW R[STRICTOR NOTES: l'IPE SIZES. IN\o{RT E1..£V"-TI0NS. ORIFICE SZES, O-.€RF'l.0W [l[V.0.llOl,IS "-MO SI.OPE'S: PEP PI./JIIS._ 2 OOnJ:T C"-PAIJTY: NOT LESS TH.O.N ~EO Nl£1S. £~1 "-5 SHOWN OR NOlED. UNITS SH"'1l.. BE CONSTRUCTEO IN .O.C(:OROAN('.:E '111TH THE REQUIRO,OITS rOR C"-101 81151N t'l'ff: t. ~-11111.. DIAM. PIPE SllPPORIS >.NO l!ESTIM:lOfl SH"'1J.. 9( OF S,\11[ W.O.lDllAL, IINO 8£ AAC10M:O Al 3' tu.X. SP..ON(l BY 5/1" DWI, ST-.£Si!i STEEi. EJCPM$1(11,1 BOLTS M ~l"IIIWAU. 5. THC IO!TICAL "'5EJI sttu OF THE R£STIC1M SH"'1J.. IIE THE So.Ii€ 1)1111,1 AS 1HE HOR1ZONTl,l_ OOTl.ET l'IPE, '111TH AN lf' lolJI. 1)1...W 6 Fli/illE ""'J lADOEJI OR STEPS Of'fSET SO TH1,T; A. SHEM GJI.O.TE IS l'ISIBLE FliOl,l TOP. B. a..11,19 DOfltll SPJ.CE IS Cl.£AR OF RISER 00 SHEM CR"-T'E. C. fRf,1,1£ IS Cl£AR OF Cl.MB. If ILTAL. Olin.El PIP'E COHNECTS TO COl'[NT CONCRETE PIPE: OUnJ:l PIPE: TO N"-1,( St,10011-i 0.0. EQUAL TO CONCR[TE fTE lD. LESS \/•". I. WU.TI-ORIFICE EU10WS IIAY BC L.OC,o,TEO AS SHOWN OR "'1J.. C111 ONE SIIIC OF ReD TO .o.=JM: L>.DOD1 CLEAAAIICE ~-$1-IEIIR GRATE 14 ..... 0I..E SH"'1J.. IIE "-TTAOtED TO lAOOER/ S1CP LOC"-TEO WITIIIN 24" 1'CCCS5SCC111JN IO. IF NOTDtED WR IS Lr.iED IN LIEU OF El.BOW. 8',Fn.C SHAl.l. NOT Oll5ll'l\!Cl IICCCSS TO THE S'lll:IJC'I\JRE ~ FLOW 0Ull£T '...4c u.u. I"_ ... . 19 i 4• fl'!Rff'YCSI) YALU FTC OR.lrlNS EL 41HO 24" I\CXt3S liWtQ£ W/ IICI.T ~_f!l<_NC> CO'O r PEI KCSCN ST- 1111 • 502.00 r~GJI- =--L o.5' ntEIBO..-o """' -~ • L,· AVENa. SE:DMCNT $TORAG[. { 492.43-" ... . 4"•~'»1" .1 .... 111:tP SIJllf' i, A 1...4 I• 'l'---•. .J,5.,4. ~ ; ll££P SIJllf' D 5·,ur~"TEtl ;·"- 11-1 --~ IE. -49J.IIO --..... I '"~ ~· 24" ACCESS IINIHOLE W/ 80L T LDCl(IN(il IIIIIC IIIC) Cm'EJI PCR K~ 5TANOAR05 RIM • SOOS YCDII I sauD CO'IER l,Wll([l) "DRAIN" '11111< BOLT LOCKING RINC l,t.(l ClWER R1M !5,0t.&~' PIPE: SIJPP0Rt5 (2 IIIN~ 3· ~ 09• '"fi'~J/e~----.J--...:11 Sll NOTE II StlE"-11 G:R.._TE SH NO"IC 10 -'ND 12 4• (lB()l,II. 2" WIN. •f1C(•1.4"t n£V.•4115.25" 12·, RISER 12"• OOTl.ET PP£ I.E. 411l.&' 1' !iECllCIN a'" PP£ -.TTACKI) IT G,IS(l"TED BMID TO "'1.J..OW REMOVAL "'h--:~'1C\:I o.u·, ruv . .qur 415.1" IIOTTOII (If 4'X4'KU.5' """"' _, DEJENDQN YAU,\il I SfCDQN c DETENTION YAlH T NOTES: 1. 8AFru WAU 1U PYEE YAULT INTO 1WO lll'Plt()l(ll,Ul[LY [QJAI. SIZE CEl..LS 2. IMNMUII CM: ACCESS MAN-ICU P(R CEU. 'Mll< "-T I.EAST ONE a.cc($$ PEIi 50' YAUI.T l.DIGTI,4 OR M:1111. l. PIIOWI[ WAml STOP Al AU CAST-IM-PVoa: CON5111UCTJON .oNTS. 1'11:E-CAST YNJLTS !MfJ.J.. IIAYC APPIIOYED RU88Elt (;ASl([T smtll. .. WJJl.1 5IW.l. IIE IJf9llNED lrMI ST.wl'E:I> BT-. ll[GIS1[IIED 5'11!UCT1!11"1 ENlilllllM. VAULT St1ALL BC DESIGNED FM HS--20 1RAl'FIC LOAOHIS. ..,..uu,1, AU MIElAI. PMTS SHAl.l. IE COl!R05lCIII MSISTNH. S. PII0¥11E L.AOOER RIMC5 -ElMAlELT -'ll.lACVIT TO "'1J.. 1Nl£T/OUTLEl P1PES. B. AU.llll!lSTOFIRS"TCQJ.. 7. IF" PIIOPOSOI 1X1YC1! 15 ~"ICM 1"N< 8 1'. 1HEN IT MOST BC 2~' WI~ AND M:CE"SS MUST ill' 4(1" ECCENll!tC CONE SET m'EJI 24• OIIIMETUI ACC£SS QPENM.. --""'- 5'.iO' G:RATtD 1~.s'::' 24" ACc:6S 11/J'll-llll.E W/ BOI..T VJCl(INO RIMO ANO t:OYER P£R k'.cswa,I ST""'JIIRO$ 11111--.515 $ECD(II Q --~ \_,oo-~-~ _,, ! ::, ..... CV 0, 0 CL! C, i~ ~jm =iiicL~ ;,a:' ~..c·r;; ". ~ ~t~ ~.!a~ ~s-t~ ;[~ill ~ ~ w I -I !I ••• I!! I!! I'.! I!! ~ ~ i5 ... ,. ,. ,. ~ ~ ~ ~ ~ " • " ij ! ! ! . !I II II !1 f ~ I-~ ~ ,¥ I)! 18 Q. .i; !I! 2 t-~c:°' a:: ... :,: ;i 0 .J .... ::C:=>co. Vl~;:~ :S ~ ~ ~ ~j- ~ I ; ! • ' • ' J ' QEJEN]ON YAYbI / SECTIONS B ANO P i ~ ~ SC\L[: 1"•10' H:IRIZONTAL. 5CN..E: 1"•5' 1€1tl1C"-l NOTE, k'.ING COUNTY DOES APPROVAL IS FOR STORM ANO ROAD IMPROVEMEtHS ONLY AS SHOWN HEREON. KING COUNTY 0.0.E.S. ......... --DRAFTER: PG/a)M OESIGNER: PG I -[o~ I ~ -\I PROJ. ENGR./SURV,: CLG OATE: 10-N-08 IIOCIU.l A. 1'.E DE-IDGl,EEI! -~ PRO.ECT NO.: 05294 SHEtT C9 "' ,, L06S0006 After Recording return to: DECLARATION OF COVENANT AND GRANT OF EASEMENT IN CON SID ERA TION of the approved King County ----------- permit for application No. ----------relating to real property described as follows: ------------------------------- The undersigned as Grantor(s), declares that the above described property is hereby subject to an easement for a system of stormwater facilities and BMPs, and hereby dedicates, covenants and agrees as follows: I . King County shall have the right to ingress and egress over those portions not contained in Exhibit "A" to access such easement area for inspection of and to reasonably monitor the performance, operational flows, or defects in accordance with and [ as presented in King County Code Section 9.04.120]. 2. If King County determines that maintenance or repair work is required to be done to the system, the Director of the Water and Land Resources Division of the King County Department of Natural Resources shall give notice of the specific maintenance and/or repair work required pursuant to K.C.C 9.04.120. The Director shall also set a reasonable time in which such work is to be completed by the Grantor(s), its heirs or assigns. If the above required maintenance or repair is not completed with the time set by the Director, the County may perform the required maintenance or repair. Written notice will be sent to the Grantor(s) stating the County's intention to perform such maintenance. Maintenance work will not commence until at least seven (7) days after such notice is mailed. If, within the sole discretion of the Water and Land Resources Division Director, there exists an imminent or present danger, said seven (7) day notice period will be waived and maintenance and/or repair work will begin immediately. 3. If at any time King County reasonably determines that any existing drainage facility or flow control BMP creates any of the conditions listed in K.C.C. 9.04.130 and herein incorporated by reference, the Water and Land Resources Division Director may take measures specified therein. 4. The Grantor(s) shall assume all responsibility for the cost of any maintenance and for repairs to the system. Such responsibility shall include reimbursement to the County within thirty (30) days of the receipt of the invoice for any such work performed. Overdue payments will require payment of interest at the current legal rate as liquidated damages. If legal action ensues, the prevailing party is entitled to costs or fees 5. The Grantor(s) is (are) hereby required to obtain written approval from the Water and Land Resources Division Director of the King County Department of Natural Resources prior to filling, piping, cutting, or removing vegetation ( except in routine landscape maintenance) in open vegetated drainage facilities (such as swales, channels, ditches, ponds, etc.), or performing any alterations or modifications to the drainage facilities contained within said drainage easement. Any notice or consent required to be given or otherwise provided for by the provisions of this Agreement shall be effective upon personal delivery, or three (3) days after mailing by Certified Mail, return receipt requested. 2 6. This agreement constitutes the entire agreement between the parties. and supercedes all prior discussions. negotiations. and all agreements whatsoever whether oral or written. This covenant is intended to protect the value and desirability of the real property described above. and sball insure to the benefit of all the citizens of King County. and shall be binding on all heirs, successors and assigns. OWNER OWNER ST A TE OF WASHING TON ) COUNTY OF KING )ss. On this day personally appeared before me: --------------,----------' to me known to be the individual(s) described in and who executed the within and foregoing instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein stated. Given under my hand and official seal this __ day of _______ , 20_ Printed name Notary Public in and for the State of Washington, residing at _____________ _ My appointment expires --------- 3 ~· ~i ~~ el~~ ~tD ~ii ~o ~~~ ~c J • j ~ ~ • ~ • ! I I ~!! ~ a, ,.. Cl 3· :u -;:: "'gi > z -::i: -<-r 0 "' -:z-)( . -:r (/) :e ~H!! ::i: >:r-1 0 ,o> . ;o ~~>:. -I "'"' "1J m.., ~ TRACT '8' 927 s.r j N ' V) ......., ::::0-;:,::;: ~C)~Z (.I) I ""T"J G) "' -; U1 > 0 > oO ::::oonc f"Tl<fTlZ )> fT1 (/) -; UJ:::OU)-< f lf ! .. t / j1~ r µ: -~--'-"""---m~----:;--~1-"' r ;TRACT "A" ~ LANDSCAPE 1RACT ~ (WITH l)RA1NAGE ,CASEMENT OED!CA'rEO TO,,KING COUNTY) 5,J75 S.F. J ~,;, )5' W' ! ~==.:::====) -._ ~ SE.~~> CT. n+oo I ---:i, esa. ---\ ~,~.t I \\ ·~ ·?Ii I LOT6 ~>ob i I f ,,,.1 s.,. I ;I'/ ! "' , .. ,.,,. . ' ,y--. ,1;,,.r L_ __ ,·-_ _/;/ NM'47'21"E ...... --------1 # /---._ ~-......'L # //-1 #// ,,> -// I ""--1 f-,•#" I I I I I :i 1 LOT• i Ill I ,. ,.._ I I LOTS lb . I 4,715 S.F 5j ~ • I • • • I• ~Ii I ·1 i 1 ----71,31' ___ J I~ I" I J,668 S.F I :i I LOT 3 fl ~ I ~ ,,,.,,.,. I i •I~ /" r1 i I !I I .I I I I ~BS8L-----2· 8S8L --__J .... .. .. nt.11· ,-----,, .... - 10' BSBL 1-----, I I I I I a I LOT 2 I I ,.m " ' Ii SI~ • •1 Ii I I I I ,· ""' J -----..... I 24.Jt' =..........:::: , r -,0'9seZ--1· I I I I la I~ .. LOT 1 4,134 S.F i1 "' _5' BSBL _ _J .... ~ I J t , I Haidar, Mazen From: Dehkordi, Fereshteh Sent: To: Tuesday, March 24, 2009 2: 19 PM Haidar, Mazen Subject: RE: Landscape Plan reviews for Malhi SP L07SR043, L07MI088 Mazan: The recreation plan has been approved. Fereshteh From: Sent: To: Cc: Haidar, Mazen Tuesday, March 24, 2009 12:28 PM Dehkordi, Fereshteh Claussen, Kimberly Subject: Landscape Plan reviews for Malhi SP L075R043, L07MI088 Fereshteh, According to the PRMS records shown below the Landscape Plan review for the subject short plat is still pending in your station, and it is my understanding that it was approved already, can you please confirm approval, thanks. << OLE Object: Picture (Device Independent Bitmap)>> << OLE Object: Picture (Device Independent Bitmap)>> << OLE Object: Picture (Metafile)>> Mazen Haidar, PE Engineer II Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 mazen.haidar@kingcounty.gov P 206 . 296 7133 F 206 296 66~ 3 Office Hours M -Th 6:00 am -4:30 pm 1 Malhi Short Plat (L07SR043) Sent: Thursday, April 02, 2009 10:41 AM To: Mark X. Plog, PE, PLS subject: RE: Malhi Short Plat (L07SR043) Ple~se see the below responses in Blue font Mazen Haidar, P .E. Engineer II Department of Development and Environmental Services 900 Dakesdale Avenue SW Renton, WA 98055-1219 r.-: 3:zp:,, ho iC o_r@ki :...gc Q~ ~ty _ J o·.; P 206 296 7133 F 206 296. 6613 Office Hours M -Th 8:00 am -4:30 pm From: Mark X. Plog, PE, PLS [mailto:mxp@geodatum.com] Sent: Thursday, April 02, 2009 10:14 AM To: Haidar, Mazen subject: RE: Malhi Short Plat (L07SR043) Mazen: We are working to get your final comments addressed and have a few questions. Please see below. Mark a GeoDatum '"' Mark X. Plog, PE, PLS Principal GeoDatum, Inc. 1505 NW Mall Stree1 Issaquah, WA 98027 mxp@geodatum.com Ph: (425) 837-8083 Fx: (425) 837-0583 Llmd SUNeying CM/ Engit186lirrg Structural EngineennQ 04/22/2009 Page 2 of 4 Malhi Short Plat (L07SR043) Office Hour. M -Th 6:00 am -4:30 pm Internal Virus Database is out-of-date. Checked by A VG. Version: 7.5.557 / Virus Database: 270.11.3/1975 -Release Date: 2/27/2009 7:05 AM 04/22/2009 Page 4 of4 Washington State Public Disclosure Commission Public Agency Lobbying 2010 PDC Form L-5 Disclosure Instructions UThe public's right to know of the financing of political campaigns and lobbying and the financial affairs of elected officials and candidates far outweighs any right that these matters remain secret and private. D RCW 42.17.010 (10) The Public Disclosure Commission Adopted as Initiative 276 in 1972 Codified as Chapter 42.17 Revised Code of Washington The Public Disclosure Commission, five citizens and a small, full-time staff, administers the law and the rules implementing it. Mission: The Public Disclosure Commission was created and empowered by Initiative of the People to provide timely and meaningful public access to information about the financing of political campaigns, lobbyist expenditures, and the financial affairs of public officials and candidates, and to ensure compliance with disclosure provisions, contribution limits, campaign practices and other campaign finance laws. Instructions in this booklet are provided to assist in the preparation of reports required by chapter 42.17 RCW. Care has been taken to make these instructions accurate yet concise. Nevertheless, these instructions cannot be substituted for the applicable provisions of chapter 42.17 RCW and 390 WAC. The law and rules are controlling in the event of any conflict with or omission in the instructions. Copies of the law and rules are available on request. All reports filed with the Commission are public records. Copies are available at cost: Paper copies of scanned records: 10 cents per page Diskette: $.25 each CD ROM: $2 each A significant amount of information filed with the Commission by candidates, political committees and lobbyists is available on the Internet. PDC's Web address is: www.pdc.wa.gov Suggestions for improving these instructions are welcome. Direct them to: The Public Disclosure Commission PO Box 40908 711 Capitol Way, Suite 206 Olympia, WA 98504-0908 Telephone: 360/753-1111 Toll-Free: 1-877-601-2828 Fax: 360/753-1112 (DO NOT send reports by fax) E-mail: pdc@pdc.wa.gov (DO NOT send reports by e-mail) In Brief ... State agencies that undertake in-person lobbying in order to attempt to influence state legislation must file L-5 reports disclosing their lobbying expenditures. Local agencies that undertake in-person lobbying in order to attempt to influence state legislation, including the administrative rule-making activity of state agencies, must file L-5 reports disclosing their lobbying expenditures. The L-5 reports are due quarterly, according to the schedule shown below. If no reportable lobbying occurred during a calendar quarter, no L-5 report is required for that quarter. Reports are considered filed as of the postmark date or the date they are hand-delivered to the Public Disclosure Commission (PDC). L-5 Report Due Dates Report 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Period Covered Jan -Mar Apr -Jun July-Sep Oct-Dec Due Date April 30 Aug 2 Nov 1 Jan 31 Send reports to: Public Disclosure Commission, PO Box 40908, Olympia, WA 98504-0908. (Street Address: 206 Evergreen Plaza Building, 711 Capitol Way, Olympia.) Responsibility Agency heads are subject to penalties for failing to file complete, accurate and timely L-5 reports. State and Local Government Agencies Reporting Lobbying Expenses Table of Contents Introduction 1 General Information........ .. .. .. .. .. 2 .......... Summary......................... 2 .......... Definitions.... .......... .......... 2 .......... Legislative Lobbying.......... 4 .......... Lobbying State Agencies... 4 .......... Private Sector Lobbyists.... 4 .......... L-5 Report Due Dates ....... 5 .......... Non-Reportable Lobbying.. 5 ................... .4 Days or Less in 3 Months 5 .................... Elected Officials...... 6 .................... Private Funds......... 6 .......... Reportable Lobbying .. .. . . . . . 6 .......... Limits on Publicly Funded Lobbying 7 .................... Gifts and Entertainment 7 .................... Reimbursements..... 7 .......... Record Keeping and Retention 7 .......... Amended Reports.. .......... 8 .......... Completing Reports & Attachments 8 .......... PDC Inquiries & Audits...... 8 .......... Penalties & Fines ... .... .. .. . . 9 Explanation of RCW 42.17.190 .. 9 .......... Subsection (2) -Overall Prohibition 9 .......... Subsection (3) -General Lobbying Authority 9 .......... Subsection (4) -Initiatives to the Legislature 10 .......... Subsection (5) -Reportable Lobbying Expenditures 10 .......... Subsection (6) -Reporting Alternative 10 .......... Subsection (7) -Personal Interest Lobbying 10 .......... Subsection (8) -Statement of Purpose 11 Preparing to File the L-5 Report 11 Step-by-Step Instructions for Completing .......... the L-5 Report....... . .. . . . . . . . 12 .......... Agency Name and Address 12 .......... Date Prepared........ ... .. .. .. . 12 .......... County............................. 12 Table of Contents (continued) .......... Calendar Quarter ............ . .......... Persons Who Lobbied This Quarter .......... Salaries of Persons Who Lobbied .......... Travel ............................ . ... .. .. .. . Brochures and Other Publications Used .................... for Lobbying ......... . .......... Consultants or Other Contractual Services .......... Total This Quarter ........... . .......... Total to Date This Year .... . .......... Signature of Agency Head Completed L-5 Examples ......... . Appendices .......... RCW 42.17.190 and Implementing Rules .......... Excerpt From State Administrative & Accounting .......... Manual .......... Blank L-5 Forms 12 12 12 13 13 13 14 14 14 Introduction In 1972, the voters of Washington State adopted Initiative 276 by an overwhelming majority, 72% of the vote. That initiative, commonly known today as the Public Disclosure Law, demands that the people of this state be informed about the sources and amount of funds spent attempting to influence state decision makers. The law is administered by the five-member Public Disclosure Commission with the assistance of a small, full-time staff. The Public Disclosure Law is comprehensive and specific. Also, with respect to the authority of public entities to lobby state legislators, legislative staff members and state agency personnel, the law is restrictive. That is, representatives of public entities may only spend public dollars for statutorily approved lobbying activities. The law applies to fill state and local public entities that lobby at the state level, including individual state agencies, each state-funded university or college, and any county, city, town, municipal corporation, quasi-municipal corporation and special purpose district (e.g., school, port, water, sewer, fire, library, hospital and public utility districts). All state and local public agencies that lobby at the state level are subject to the law's lobbying expenditure restrictions. These agencies must also periodically report their lobbying expenditures, unless they undertake activity that is not reportable, or they don't "lobby" as that term is defined for public agencies. This manual is organized into four sections: • General Information; • Explanation of RCW 42.17.190 (the provisions relating to public agency lobbying); • Preparing to File the L-5 Report (the form used by state and local government agencies to disclose lobbying expenses); and • Step-by-Step Instructions for Completing the L-5 Report. The manual will assist agency personnel having overall responsibility for the lobbying effort as well as those who actually keep the records and complete the reporting forms. In the past, each public entity that undertook lobbying had to submit one report consolidating all lobbying expenditures made or incurred by the entity's departments or divisions during a calendar quarter. However. in 1994. the Commission amended WAC 390-20-052 to allow any subagency (of a state or local agency) that has independent authority to expend public funds for lobbying to file a separate L-5 report. so long as the subagency gives written notice that it will file separate L-5 reports to the PDC and the state agency, county, city, town, etc. of which it is a part. 1 After this notice is provided, the department, bureau, board, commission, etc. has the responsibility to file its own quarterly reports. For example, this change would allow the King County Prosecutor's Office to file its own report rather than having its lobbying expenditures included in one consolidated report filed by King County. All filers or anyone connected with an agency's lobbying program are encouraged to contact PDC for assistance. Call (360) 753-1111, toll free 1-877-601-2828 or write PDC, PO Box 40908, Olympia, WA 98504-0908 (e-mail address is pdc@pdc.wa.gov). L-5 reporting forms are located at the back of this manual. General Information In order for a public agency to comply fully with the applicable lobbying provisions of RCW 42.17, at least a basic understanding of the law is necessary. Summary • Agencies may only spend public dollars to conduct legally authorized lobbying. • Agencies may not use public resources to support or oppose an effort to get an Initiative to the Legislature before the legislature. • On November 19, 1991, the Commission reviewed the question of whether agencies may lobby for passage or defeat of an Initiative to the Legislature once such an initiative is before the legislature. The Commission decided this lobbying activity is permissible as normal and regular conduct. • Agencies must keep detailed records concerning the amount of time employees spend lobbying, what issues were lobbied, and what lobbying expenditures were incurred. • L-5 lobbying reports are filed quarterly by agencies. Reports are not required for any quarter during which no lobbying activity took place. • Each agency head should designate one person to be in charge of compiling information and completing the L-5 reports. This designee should have the authority to require cooperation from departments, divisions and units within the agency whose expenditures are included in the report. The agency head remains accountable for that agency's complete compliance with the law. Definitions "Lobby and Lobbying" are defined as "attempting to influence the passage or defeat of any legislation by the legislature of the state of Washington, or the adoption or rejection of any rule, standard, rate or other legislative enactment of any state agency under the state Administrative Procedure Act, chapter 34.05 RCW" 2 For public agencies, lobbying does not include any of the following activities: • Requests for appropriations by state agencies to the Office of Financial Management (OFM) or requests by OFM to the legislature for appropriations other than its own agency budget (Once a budget request leaves OFM and is before the legislature, attempts to influence any portion of it do constitute reportable lobbying.); • Recommendations or reports to the legislature in response to a legislative request, whether oral or written, expressly requesting or directing a specific study, recommendation or report on a particular subject; • Official reports including recommendations submitted annually or biennially by a state agency as required by law; • Requests, recommendations or other communications between or within state agencies (however, attempts to influence the Governor with respect to signing or vetoing legislation are considered reportable lobbying; other communications or negotiations with the Governor's Office would not be reportable); • Requests, recommendations or other communications between or within local agencies; • Telephone conversations or preparation of written correspondence (thus, only in- person contacts, including testifying at hearings, are considered lobbying); • Preparation or adoption of policy positions within an agency or group of agencies (once a position is adopted, further action to advocate it may constitute lobbying, however); • Attempts to influence federal or local legislation. Also see "Non-Reportable Lobbying" and "Reportable Lobbying" discussed below. "Legislation" means "bills, resolutions, motions, amendments, nominations, and other matters pending or proposed in either house of the state legislature and includes any other matter that may be subject of action by either house or any committee of the legislature and all bills and resolutions that, having passed both houses, are pending approval by the governor." Based on this definition, lobbying includes any agency's efforts to block the introduction of unfavorable legislation, as well as those efforts intended to influence the governor's action on legislation that's passed both houses. 3 Legislative Lobbying In-person contacts by agency lobbyists or liaisons with legislators to influence action or inaction on legislation is understood fairly universally to be reportable lobbying. However, some agencies may not be aware that reportable lobbying also includes efforts to inform, sway, convince or otherwise influence the action or inaction of legislative staff members. Staff evaluations and recommendations play a significant role in the legislative process. In-person contacts with legislative staff constitute lobbying. Gift, travel, contribution and entertainment expenditures for legislators and staffers alike, whether using public or non-public dollars, are reportable. Lobbying State Agencies Requests, recommendations or other communications between or within slate agencies, whether in-person or by phone or letter, is not considered lobbying. Therefore, stale agencies may attempt to influence each other's actions without reporting the expenditures incurred. Slate agencies may also "lobby" local and federal agencies without reporting this activity under state law. Similarly, local agencies may "lobby" their local counterparts and federal agencies without incurring any state reporting requirements. However, if a local agency employee has an in-person contact with a state agency representative in order to attempt to influence that slate agency's adoption. repeal or amendment of a rule. rate. standard or other legislative enactment of the agency. the expenditures made in connection with that contact are reportable by the local agency. Were a local agency to request a state agency to interpret or apply existing laws or rules to a particular situation in a manner preferred by the local agency, reportable lobbying would not occur. Attempting to influence the interpretation or application of an existing state rule or policy is not lobbying: attempting to change a state agency's rule. rate or standard is. Private Sector Lobbyists Most public agencies utilize the services of their on-staff employees lo conduct the vast majority of their lobbying activities. This is the method that the law and its L-5 reporting requirements for public agencies appear to contemplate. However, ii is becoming more common for state and local agencies to contract with lobbyists from the private sector to handle some or all of their lobbying. When private sector lobbyists are retained, the agency continues to file quarterly L-5 reports when reportable lobbying expenses have been made or incurred. In addition, the private sector (non-public employee) lobbyist must register and report under RCW 42.17.150 and .170. This private sector lobbyist will register on an L-1 form and file a monthly L-2 report. Agencies that hire private sector lobbyists should also keep in mind that they remain subject to the restrictions on the uses to which public lobbying dollars may be put. Agencies may not do indirectly --i.e., through an outside lobbyist --what they are not permitted to do directly. See "Limits on Publicly Funded Lobbying" below. 4 L-5 Report Due Dates L-5 reports are due by the end of the month following the close of any calendar quarter during which reportable lobbying activity took place. If no reportable lobbying was conducted during a calendar quarter. no L-5 report is due. Report 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Period Covered Due Date Jan -Mar April 30 Apr -Jun Aug 2 July -Sep Nov 1 Oct -Dec Jan 31 Send reports to: PDC. 711 Capitol Way, Room 206. PO Box 40908 Olympia. WA 98504-0908. Reports may not be faxed. Reports are considered filed as of the postmark date or the date they are hand delivered to PDC. Reports are not considered filed unless they are signed by the agency head. As is the case with other disclosure documents filed with PDC, L-5 reports are considered public information. Non-Reportable Lobbying As is discussed under the definition of "Lobby and Lobbying" above. some activities undertaken by public agencies that might be considered standard lobbying practices -- for example, telephone contacts with legislators regarding pending legislation --are exempt from the definition of lobbying. In a similar fashion. the disclosure law labels other lobbying activities as "non- reportable." In other words. the law recognizes these practices as lobbying. but permits agencies to forego reporting them. There are three kinds of non-reportable lobbying. Each is discussed below. 4 Days or Less in 3 Months: In-person lobbying on behalf of an agency by all of its employees or lobbyists (excluding elected officials who lobby on behalf of an agency) totaling, in the aggregate for the agency, no more than four days (or parts of four days) during any three consecutive months is non-reportable. In-person lobbying includes testifying at legislative committee and state agency hearings. Monitoring committee or agency hearings does not constitute lobbying and does not count toward this four-day threshold. Put another way, each state and local agency is permitted to have its representatives lobby in-person for a total of four days (or parts of four days) during any three-month period without reporting the costs associated with that lobbying. Whether an agency has one lobbyist or ten, the agency is still only entitled to four days or parts thereof of "free" lobbying (that is. each lobbyist is not entitled to four days of non-reportable lobbying). 5 The phrase "or parts of four days" means that if an agency representative lobbies on behalf of an agency for ten minutes or two hours (i.e., something less than a full day), the fact that they lobbied at all means the agency must count that lobbying time as a "day" for the four-day non-reporting provision. This exception is designed to eliminate reporting when little or infrequent lobbying occurs. Nevertheless, agencies should keep records about who conducted the lobbying, the time spent and any lobbying related travel or other expenses, because if the four-day threshold is exceeded, the agency will have to include these expenditures on its first quarterly report. Agencies that customarily do more than four days or parts thereof of lobbying in three consecutive months should ignore this reporting exception since ii won't reduce their reporting obligations. Elected Officials: In-person lobbying conducted by any elected official on behalf of his or her agency or in connection with his or her powers, duties or compensation is not reportable. The travel and other lobbying expenses an agency incurs to support the lobbying efforts of an elected official need not be included on its L-5 report. Nevertheless, these expenditures may only be for lobbying activities permitted by law. See "Limits on Publicly Funded Lobbying" below. If an elected official spends over $15 of non-public funds for or on behalf of one or more legislators. other state elected officials or employees in connection with in-person lobbying, the amount and purpose of these expenditures must be disclosed as part of the agency's L-5 report. Private Funds: Agencies need not report expenditures of non-public, personal funds totaling $15 or less made by any lobbyist in connection with his or her in-person lobbying duties to benefit legislators, other state elected officials or state employees. (Conversely, such expenditures totaling more than $15 are reportable.) Non-public funds are usually spent to entertain or buy gifts for state officials or employees or to make contributions to incumbents' re-election campaigns. Reportable Lobbying The L-5 report identifies what expenditures must be reported. All funds spent to support the in-person lobbying efforts of an agency's employees (and private-sector lobbyists) will appear as part of the L-5 report, unless they are specifically excluded as discussed above. In addition, the agency will itemize and report the non-public funds expenditures of over $15 spent by its representatives in conjunction with the agency's lobbying program. That is, if an agency assistant director takes two legislators to lunch to discuss pending legislation, it doubtless will cost the assistant director over $15 and be reportable. However, if this same assistant director buys a birthday present for his legislator sister, the cost of the gift --which is assumed to be over $15 --is not reportable because it's for a family member and not related to lobbying. 6 Limits on Publicly Funded Lobbying General authority for public agencies to engage in state-level lobbying is found in RCW 42.17.190(3). However, that authority is also restricted in the sense that unless agencies are granted specific authorization elsewhere in statute, they must restrict their publicly supported lobbying activities to providing information or communicating on matters pertaining to official agency business or advocating the official position or interests of the agency. No public funds may be spent as a direct or indirect gift or campaign contribution to any elected official. officer or employee of any agency. Gifts and Entertainment Under RCW 42.52.010(10) "Gift" means "anything of economic value for which no consideration is given. " Expenditures made for the purpose of entertaining legislators, other state elected officials or stale employees -regardless of the cost of the entertainment --are considered gifts and may not be directly or indirectly paid with public funds. Reimbursements In addition to this general prohibition against using public funds to provide gifts to state elected officials and employees in conjunction with lobbying, according to the Office of Financial Management (OFM), state employees may not be reimbursed by the stale for entertaining officials. See excerpt from State of Washington Administrative & Accounting Manual --subsections 70.15 and 70.10 --in the Appendix section at the back of the manual. Record Keeping and Retention Each public agency must keep detailed records substantiating the L-5 reports filed by the agency. The records must be kepi for five years from the file date of the report. The records need lo document who under-took lobbying activities on behalf of the agency, when and what activities occurred, the specific issues advocated or opposed, as well as the date, amount and purpose of each lobbying-expense. Lobbying-related expenditures of non-public funds totaling $15 or more for gifts, entertainment or contributions to state elected officials or employees must also be recorded by date, amount, name of recipient, purpose, source of funds and name of each person making such expenditures. Report all compensation and expenses for lobbying on an accrual basis. That is, report them for the quarter in which they were earned or incurred, not necessarily received or paid. 7 It's recommended that agency lobbyists obtain receipts for all lobbying-related expenditures and purchases for which they will be reimbursed by the agency. Similar receipts documenting expenditures of non-public funds for lobbying would also be in order. All receipts should be provided to the agency for its records. Lobbyists should also maintain records of time spent lobbying, persons contacted and issues discussed. Agencies will not be able to report accurately unless these records exist. Amended Reports Regardless of the amount of time and effort devoted to filing a complete and accurate report, mistakes do happen. If an omission or mistake in the figures of a previously filed report is discovered, file an amended report. Include all the required information, not simply the amended data. Write "Amended" in large letters at the top of the form. An accompanying letter of explanation may be helpful. If an oversight was made in the description of lobbying activities or elsewhere in the text of the report, submit a letter of explanation rather than filing a complete, amended report. Amended L-5 reports or letters of explanation should be filed as soon as the error is discovered. Completing Reports & Attachments All reports and attachments should be typewritten or printed in black ink. Please use 8 1 /2" x 11" white paper for attachments and be sure to include the agency's name on all supplemental pages and only use one side of each sheet of paper. Reports are scanned into a document imaging system for viewing on computer monitors. If a filer submits over-sized paper or provides information on both sides of a sheet of paper, this significantly slows down the process for entering reports into PDC's record keeping system. Be sure to keep a copy of each report submitted as part of the agency's records. PDC Inquiries & Audits PDC staff may contact agencies advising them a report appears to be missing or incomplete, asking for clarification of a report or requesting additional information. Please cooperate with these informal contacts and supply the requested information promptly. As time allows, a limited number of agencies will be the subject of random audits. Some of these are in-depth and the agency will be asked to make available all records, including receipts and other documentation. These audits are routine. Audits are also conducted for cause, because a complaint has been received or there is reason to believe disclosure reports are missing or are not accurate. If your agency is the subject of such an audit, be assured the agency will have every opportunity to explain its position. 8 Penalties & Fines The intent of the Public Disclosure Law cannot be satisfied unless reports are filed timely and accurately. If the Commission finds an agency in violation of the law --whether it be for non- reporting, late or inaccurate reporting, or for violating other provisions of the law --it could impose a penalty of up to $2,400 for a single violation or $4,700 for multiple violations. The Commission could also decide, in lieu of the penalty options available to it, to refer the matter to the State Attorney General or a local prosecutor for action. The civil remedies and sanctions available to the court are set out in RCW 42.17.390. Explanation of RCW 42.17 .190 Included in this portion of the manual is a brief discussion of the requirements imposed or authority granted by each relevant subsection of RCW 42.17.190, the provisions relating to public agency lobbying. A copy of the section's language, as well as the administrative rules implementing it, can be found in the Appendix section at the back of the manual. Subsection (2) Essentially, subsection (2) prohibits agencies from using public funds directly or indirectly for lobbying absent express legal authority. The language of this subsection does not, however, prevent agency personnel from communicating with legislators at the member's request or from requesting, through proper official channels, necessary legislative action or appropriations. Subsection (3) This subsection grants all agencies general authority to lobby using public funds, but limits their authority to: • communicating with state officeholders or employees on official agency business; and • advocating only the official position or interests of the agency. As such, agencies may not engage in grassroots lobbying or other indirect forms of lobbying. Subsection (3) also prohibits spending public funds, directly or indirectly, for gifts or campaign contributions. Both terms are broadly defined in law. A gift includes anything of value: meals, beverages, leisure travel expenses, theater or sporting event tickets, art work, flowers, and the like. A campaign contribution, on the other hand, is anything of value to a campaign, be it a monetary contribution or providing an in-kind service or item. An agency is also prohibited from increasing an employee lobbyist's salary or private sector lobbyist's fee to cover the costs of otherwise prohibited gifts, entertainment expenses or political contributions (including purchase of tickets to political party or caucus fund raisers). 9 Subsection (4) Subsection (4) prohibits anyone within the public sector from using or authorizing the use of public facilities in an effort to support or oppose an Initiative to the Legislature. The only exceptions to this prohibition relate to official action by members of an elected legislative body, statements by elected officials, and activities that are part of the "normal and regular conduct" of the agency; that is, activities that are authorized specifically in Jaw and that are usual for the agency. On November 19, 1991, the Commission reviewed the question of whether agencies may lobby for passage or defeat of an Initiative to the Legislature once such an initiative is before the legislature. The Commission decided this lobbying activity is permissible as normal and regular conduct. Subsection (5) This subsection speaks to what information must be reported quarterly by public agencies. Certain activities are not included in the definition of lobbying and others are deemed non-reportable. See the "General Information" section above for more information on these activities. All public agencies must report in-person lobbying conducted by non-elected officials, employees and contract lobbyists that is directed at legislators and their staffs. In addition, local agencies must also report similar in-person lobbying directed at state agency officials and employees, including the Governor and his/her staff. State agencies must also report in-person lobbying aimed at influencing the Governor's action with respect to legislation that has passed both houses of the legislature. If any representative of a public agency --including elected officials -spends over $15 of non-public money on behalf of legislators or their staff (and, in the case of local agencies, on behalf of state officials or employees), the agency must identify the spender's name, the source of the funds, the amounts spent, the dates of the expenditures and the names of the persons on whose behalf the funds were spent as part of the L-5 report. Subsection (6) Subsection (6) permits local agencies, but not state agencies, to elect to report in the manner provided by law for private sector lobbyists and employers of lobbyists. Local agencies electing this option would report the same information required of public agencies on the L-5 report, but would follow the registration requirements and reporting dates found in RCW 42.17 .150, .170 and .180 Subsection (7) This subsection says that a public official lobbying on a matter of personal interest, unrelated to his or her public responsibility, may have to register and report as a private sector lobbyist. 10 Subsection (8) Subsection (8) states that the purpose of section .190 is to require state and local agencies to report the identities of those persons who lobby on behalf of the agency for compensation, together with certain separately identifiable and measurable lobbying expenditures. The language also grants the Commission authority to adopt rules clarifying and implementing the stated legislative intent. Preparing to File the L-5 Report The person assigned the responsibility of completing the reports will find it helpful to do the following: • Become thoroughly familiar with and understand what must be reported and how much detail is required on the reports and in the agency's records; • train all lobbyists/liaisons as well as one focal person in each department, division or unit that conducts lobbying on the record keeping requirements and spending restrictions included in the law; • direct all lobbyists/liaisons to provide their "unit focal person" with the information necessary to complete the reports at least on a quarterly basis, preferably shortly after the end of the quarter; • direct "unit focal persons" to complete an L-5, along with any attachments, for their units by the middle of the month following the end of the quarter; have them attach supporting documents; • be prepared to send reminder notices to everyone involved in this process; • complete one consolidated agency L-5 report from the individual "unit reports" received; have the agency head sign the report; file the report with PDC by the end of the month following the close of the quarter; keep a copy of the report, along with supporting documentation, for five years; and • call PDC for assistance at (360) 753-1111, toll free 1-877-601-2828. 11 Step-by-Step Instructions for Completing the L-5 Report Agency Name and Address Supply the full agency name and complete mailing address. Also include the name of the person responsible for completing the report. Use the term "Agency Contact" followed by that person's name. The agency head is ultimately accountable for the report's accuracy, but we need to know who to contact initially in case questions arise. Date Prepared Specify the date the actual report was prepared. It should be some time during the month following the close of the quarter being reported. County Local agencies supply the name of the county in which they are located. Calendar Quarter Specify the last month (and year) of the calendar quarter being reported. Persons Who Lobbied This Quarter Use one of the blocks provided, and supplemental pages if necessary, to identify each employee who lobbied on behalf of the agency during the quarter being reported. Supply all the information requested: name, job title, annual salary, percentage of time spent lobbying during the quarter, and a description of the issues concerning which the person lobbied. Include bill and WAC numbers when appropriate. A statement to the effect that the person lobbied on all matters of interest to the agency is NOT sufficient. Be brief, but as specific as possible. If any employee who lobbied on behalf of the agency spent over $15 of non-public funds in connection with lobbying (for gifts, entertainment, meals, refreshments, and political contributions for public officials or employees), check the box provided and supply, on an attached sheet, the name of the person making the expenditure, the source of the funds, the date, amount, purpose, and name of person benefited by each expenditure. Include the same information for any elected official who lobbied on behalf of the agency and spent over $15 of non-public funds for lobbying-related expenses. Salaries of Persons Who Lobbied For each person who lobbied during the quarter, divide his/her annual salary by four and multiply that number by the percentage of time that person spent lobbying during the quarter. For example, lobbyist A earns $40,000 per year and spent 10 percent of 12 his/her time lobbying. Lobbyist A's salary for lobbying during the quarter equals $1,000 ($40,000 divided by 4 = $10,000 x .10 = $1,000). Put the sum of the lobbying salaries of all persons who lobbied during the quarter in the space provided. (If ten employees lobbied during the quarter, the figure shown will be the sum of the lobbying salaries -- determined in each case by using the formula shown above --of all ten employees.) Travel Add together the amount of lobbying related travel expenditures incurred during the calendar quarter (that have been or will be paid with agency funds) for food, lodging, per diem and transportation by agency employees who lobbied for the agency. Put the total figure in the space provided. If, in conjunction with the agency's lobbying program, the agency paid for similar travel related expenses of legislators, their staff members (and, in the case of local agencies, travel related expenditures of state officials or employees}, also include those costs in the figure provided. Put an * next to the figure and attach a full explanation of each non- employee expenditure included in the total, giving the date, name of person on whose behalf the expenditure was made, name of vendor, amount and purpose. Do not include travel expenses of agency officials and employees that are unrelated to lobbying. Brochures and Other Publications Used for Lobbying If the agency incurred expenses during the calendar quarter to develop brochures or other publications for use primarily in connection with its lobbying effort, all the expenses associated with producing and distributing the literature are reportable. The total amount of any such expenditures should be shown in the space provided. Do not report the costs associated with publications developed primarily for another purpose but distributed incidentally as part of lobbying. Agencies do, from time-to-time, produce lobbying sales pieces from information contained in the agency's budget request or other documents. The costs associated with these kinds of sales pieces would be reportable. Consultants or Other Contractual Services If the agency incurred lobbying related expenses during the calendar quarter for consultants, outside expert witnesses, private sector lobbyists or other types of contractual lobbying services, put the total of these expenditures in the space provided. On an attached sheet, also itemize each such expenditure by date, name of recipient, amount and purpose. Consider this line to be the "catch-all" for any other type of clearly identifiable lobbying expenditure that was not previously accounted for on the report. 13 Total This Quarter Add together the separate expenditures for lobbying related activities this quarter. Put the total in the space provided. Total To Date This Year Add the Total This Quarter with the total from previous quarters of the same calendar year. Put the sum in the space provided. The first quarter report will have the same figure in Total This Quarter and Total To Date This Year. Signature of Agency Head The report is not valid unless it is signed by the agency head. See the completed L-5 examples located on the following pages. Call PDC if further assistance is required at (360) 753-1111, toll free 1-877-601-2828. 14 PDC FORM 711 CAPITOL WAY RM 206 PO B0X40908 OLYMPIA WA 98504-0908 (360) 753-1111 L-5 {Rev 1/09) LOBBYING BY STATE AND LOCAL GOVERNMENT AGENCIES TOLL FREE 1-877-601-2828 Instructions Are Printed On Reverse Agency or Governmental Entity Name and Address State Department of Higher Gliffics Esoteria Building, Rm 101 PO Box40901 Capitol City, WA 00000-0000 Date prepared 4/1/0X County PERSONS WHO LOBBIED THIS QUARTER Name Job title Annual salary Lee A. Zahn Gov. Affairs Director $80,000 General description of lobbying activities or objectives. (Include bill or WAC numbers, if any) Report for calendar quarter ending 03 200X Month Year % of time spent lobbying during quarter 25% HB 1000, introduced at the Governor's request, relates to immediately activating the Department's sunset provision. The department opposes HB 1000 and supports reinstatement of our current-year budget allocation. D Check if person spent more than $15 of non-public funds in lobbying. See instructions on reverse. Name Job title Constance Vigilance Acting Director General description of lobbying activities or objectives. (Include bill or WAC numbers, if any) Oppose HB 1000 Support reinstatement of budget Urge appointment of permanent director D Check if nF>rson SnF>nt more than $15 of non-public funds in lobbyinQ. See instructions on reverse. Name Job title Bill Upnow Program Coordinator General description of lobbying activities or objectives. (Include bill or WAC numbers, if any) Oppose HB 1000 Support reinstatement of operating funds Request 3 Information Officer positions D Check if person spent more than $15 of non-public funds in lobbying. See instructions on reverse. Annual salary $92,000 Annual salary $52,000 EXPENDITURES FOR LOBBYING THIS QUARTER Report only the separately identifiable and measurable expenditures incurred for lobbying purposes Salaries Of Persons Who Lobbied (Include only portion of quarterly salary attributable to lobbying) $ Travel (Include food, lodging, per diem payments and cost of transportation used) $ Brochures And Other Publications Whose Principal Purpose Is To Influence Legislation $ Consultants Or Other Contractual Services $ Total This Quarter $ Total To Date This Year $ CERTIFICATION: I certify that to the best of my knowledge the above is a Name of employee completing report true, complete and correct statement in accordance with RCW42.17.190. Dora Diligence Signature of agency head Work telephone Number (812) 634-0198 Work E-mail dora@dgh.gov % of time spent lobbying during quarter 75% % of time spent lobbying during quarter 10% 23,550 965 25,842 0 50,357 50,357 Attach additional sheets if more room is required ATTACHMENT Agency or Governmental Entity Name State Department of Higher Gliffics Expenditures over $15 of non-public funds Date Spender's Name Source of Funds Jan 20, 200X Constance Vigilance Personal funds $ Feb 10, 200X Constance Vigilance Personal funds Feb 16, 200X Constance Vigilance Personal funds Mar 22, 200X Constance Vigilance Personal funds Amount $250 $70 $95 $120 L-5 Report for calendar quarter ending 03 200X Month Year Person{s) on Whom Funds Spent Speaker of House, Majority and Minority Leders Senate Majority Leader Senators Jones & Smith Mary Green, Bruce Phillips and Susan Hale (House Appropriations Committee Staff) PDC FORM 711 CAPITOL WAY RM 206 PO B0X40908 OLYMPIA WA 98504-0908 (360) 753-1111 L-5 (Rev 1109) LOBBYING BY STATE AND LOCAL GOVERNMENT AGENCIES TOLL FREE 1-877-601-2828 Instructions Are Printed On Reverse Agency or Governmental Entity Name and Address Paradise County County Court House Corner of Easy Street & Best View Avenue Anyplace, WA 99999-9999 Date prepared July 25, 200X County Paradise PERSONS WHO LOBBIED THIS QUARTER Name Job title Annual salary Sid Proquo Assistant Deputy Prosecutor General description of lobbying activities or objectives. (Include bill or WAC numbers, if any) Support HB 1843 -sentencing guidelines revisions $60,000 Support SB 1116 -tax on pinto beans (revenue used to build new Paradise Co courthouse) Oppose statewide salary reductions for prosecuting attorneys D Check if person spent more than $15 of non-public funds in lobbying. See instructions on reverse. Name Job title Annual salary Mary Chase Deputy Sheriff $55,000 General description of lobbying activities or objectives. (Include bill or WAC numbers, if any) Support SB 1224 -state funding of uniform allowances for law enforcement officers Support SB 1736 -regulating the sale of cigarette papers Support HB 1940 -higher speed limits on rural highways D Check if nPrson SnPnt more than $15 of non-oublic funds in lobbvina. See instructions on reverse. Name Job title Annual salary H. I. Profile Commissioner $NA General description of lobbying activities or objectives. (Include bill or WAC numbers, if any) NA -see attached itemization of personal funds spent in connection with lobbying D Check if person spent more than $15 of non-public funds in lobbying. See instructions on reverse. EXPENDITURES FOR LOBBYING THIS QUARTER Report only the separately identifiable and measurable expenditures incurred for lobbying purposes Salaries Of Persons Who Lobbied (Include only portion of quarterly salary attributable to lobbying) $ Travel (Include food, lodging, per diem payments and cost of transportation used) $ Brochures And Other Publications Whose Principal Purpose Is To Influence Legislation $ Consultants Or Other Contractual Services $ Total This Quarter $ Total To Date This Year $ CERTIFICATION: I certify that to the best of my knowledge the above is a Name of employee completing report tnJe, complete and correct statement in accordance with RCW42.17.190. Jim Dan Dee Signature of agency head Work telephone Number (509) 391-0000 Report for calendar quarter ending June 200X Month Year % of time spent lobbying during quarter 18% % of time spent lobbying during quarter 7% % of time spent lobbying during quarter NA 3,662.50 1,000.00 250.00 1,800.00 6,712.50 12,212.50 Work E-mail jimdandee@paradise.gov Attach additional sheets if more room is required ATIACHMENT Agency or Governmental Entity Name Paradise County Expenditures over $15 of non-public funds Date Spender's Name May 1, 200X H. I. Profile May 12, 200X H. I. Profile Explanation of Travel Expenditures: Source of Funds XYZ Company (owner: H. I. Profile) XYZ Company (owner: H. I. Profile) Amount $ 85 70 L-5 Report for calendar quarter ending 06 ox Month Year Person(s) on Whom Funds Spent Plaque for governor Dinner for Reps. Green and Brown $500 of total travel expenses ($1,000) used to pay transportation, lodging and meals for Chairs of House Revenue Committee and Senate Ways and Means Committee to visit Paradise County (tour of courthouse). Appendix RCW 42.17.190 Legislative activities of state agencies, other units of government, elective officials, employees. (1) The House of Representatives and the Senate shall report annually: The total budget; the portion of the total attributed to staff; and the number of full-time and part-time staff positions by assignment, with dollar figures as well as number of positions. (2) Unless authorized by subsection (3) of this section or otherwise expressly authorized by law, no public funds may be used directly or indirectly for lobbying: PROVIDED, This does not prevent officers or employees of an agency from communicating with a member of the legislature on the request of that member; or communicating to the legislature, through the proper official channels, requests for legislative action or appropriations which are deemed necessary for the efficient conduct of the public business or actually made in the proper performance of their official duties: PROVIDED FURTHER, That this subsection does not apply to the legislative branch. (3) Any agency, not otherwise expressly authorized by law, may expend public funds for lobbying, but such lobbying activity shall be limited to (a) providing information or communicating on matters pertaining to official agency business to any elected official or officer or employee of any agency or (b) advocating the official position or interests of the agency to any elected official or officer or employee of any agency: PROVIDED, That public funds may not be expended as a direct or indirect gift or campaign contribution to any elected official or officer or employee of any agency. For the purposes of this subsection, the term "gift" means a voluntary transfer of any thing of value without consideration of equal or greater value, but does not include informational material transferred for the sole purpose of informing the recipient about matters pertaining to official agency business. This section does not permit the printing of a state publication which has been otherwise prohibited by law. (4) No elective official or any employee of his or her office or any person appointed to or employed by any public office or agency may use or authorize the use of any of the facilities of a public office or agency, directly or indirectly, in any effort to support or oppose an initiative to the legislature. "Facilities of a public office or agency" has the same meaning as in RCW 42.17.130 and 42.52.180. The provisions of this subsection shall not apply to the following activities: (a) Action taken at an open public meeting by members of an elected legislative body to express a collective decision, or to actually vote upon a motion, proposal, resolution, order, or ordinance, or to support or oppose an initiative to the legislature so long as (i) any required notice of the meeting includes the title and number of the initiative to the legislature, and (ii) members of the legislative body or members of the public are afforded an approximately equal opportunity for the expression of an opposing view; RCW 42.17 .190 (Continued) (b) A statement by an elected official in support of or in opposition to any initiative to the legislature at an open press conference or in response to a specific inquiry; (c) Activities which are part of the normal and regular conduct of the office or agency; (d) Activities conducted regarding an initiative. to the legislature that would be permitted under RCW 42.17 .130 and 42.52.180 if conducted regarding other ballot measures. (5) Each state agency, county, city, town, municipal corporation, quasi-municipal corporation, or special purpose district which expends public funds for lobbying shall file with the commission, except as exempted by (d) of this subsection, quarterly statements providing the following information for the quarter just completed: (a) The name of the agency filing the statement; (b) The name, title, and job description and salary of each elected official, officer, or employee who lobbied, a general description of the nature of the lobbying, and the proportionate amount of time spent on the lobbying; (c) A listing of expenditures incurred by the agency for lobbying including but not limited to travel, consultant or other special contractual services, and brochures and other publications, the principal purpose of which is to influence legislation; (d) For purposes of this subsection the term "lobbying" does not include: (i) Requests for appropriations by a state agency to the office of financial management pursuant to chapter 43.88 RCW nor requests by the office of financial management to the legislature for appropriations other than its own agency budget requests; (ii) Recommendations or reports to the legislature in response to a legislative request expressly requesting or directing a specific study, recommendation, or report by an agency on a particular subject; (iii) Official reports including recommendations submitted to the legislature on an annual or biennial basis by a state agency as required by law; (iv) Requests, recommendations, or other communication between or within state agencies or between or within local agencies; (v) Any other lobbying to the extent that it includes: (A) Telephone conversations or preparation of written correspondence; RCW 42.17.190 (Continued) (B) In-person lobbying on behalf of an agency of no more than four days or parts thereof during any three-month period by officers or employees of that agency and in- person lobbying by any elected official of such agency on behalf of such agency or in connection with the powers, duties, or compensation of such official: PROVIDED, That the total expenditures of nonpublic funds made in connection with such lobbying for or on behalf of any one or more members of the legislature or state elected officials or public officers or employees of the state of Washington do not exceed fifteen dollars for any three-month period: PROVIDED FURTHER, That the exemption under this subsection is in addition to the exemption provided in (A) of this subsection; (C) Preparation or adoption of policy positions. The statements shall be in the form and the manner prescribed by the commission and shall be filed within one month after the end of the quarter covered by the report. (6) In lieu of reporting under subsection (5) of this section any county, city, town, municipal corporation, quasi municipal corporation, or special purpose district may determine and so notify the public disclosure commission, that elected officials, officers, or employees who on behalf of any such local agency engage in lobbying reportable under subsection (5) of this section shall register and report such reportable lobbying in the same manner as a lobbyist who is required to register and report under RCW 42.17.150 and 42.17.170. Each such local agency shall report as a lobbyist employer pursuant to RCW 42.17 .180. (7) The provisions of this section do not relieve any elected official or officer or employee of an agency from complying with other provisions of this chapter, if such elected official, officer, or employee is not otherwise exempted. (8) The purpose of this section is to require each state agency and certain local agencies to report the identities of those persons who lobby on behalf of the agency for compensation, together with certain separately identifiable and measurable expenditures of an agency's funds for that purpose. This section shall be reasonably construed to accomplish that purpose and not to require any agency to report any of its general overhead cost or any other costs which relate only indirectly or incidentally to lobbying or which are equally attributable to or inseparable from nonlobbying activities of the agency. The public disclosure commission may adopt rules clarifying and implementing this legislative interpretation and policy. WAC 390-05-273 Definition of normal and regular conduct. Normal and regular conduct of a public office or agency, as that term is used in the proviso to RCW 42.17.130, means conduct which is (1) lawful, i.e., specifically authorized, either expressly or by necessary implication, in an appropriate enactment, and (2) usual, i.e., not effected or authorized in or by some extraordinary means or manner. No local office or agency may authorize a use of public facilities for the purpose of assisting a candidate's campaign or promoting or opposing a ballot proposition, in the absence of a constitutional, charter, or statutory provision separately authorizing such use. WAC 390-20-052 Application of RCW 42.17 .190 --Reports of agency lobbying. Pursuant to the authority granted in RCW 42.17 .190(8), the commission adopts the following interpretations regarding the reporting of lobbying by public agencies pursuant to RCW42.17.190: (1) The phrase "in-person lobbying" contained in RCW 42.17.190 (5)(d)(v)(B) includes activity which is intended to influence the passage or defeat of legislation, such as testifying at public hearings, but does not include activity which is not intended to influence legislation, such as attending a hearing merely to monitor or observe testimony and debate. (2) The phrase "a legislative request" contained in RCW 42.17.190 (5)(d)(ii) includes an oral request from a member of the legislature or its staff. (3)(a) When any subagency (i.e. department, bureau, board, commission or agency) within a state agency, county, city, town, municipal corporation, quasi-municipal corporation or special purpose district (i.e. primary agency) has independent authority to expend public funds for lobbying, that subagency may file a separate L-5 reporting the information required by RCW 42.17.190(5). (b) When a subagency elects to file its own, separate L-5, it shall notify the commission and the administrative head of the primary agency of its intentions in writing. The primary agency shall not thereafter include information for the subagency in its L-5, and shall have no legal obligation for the filings of the subagency. (4) Pursuant to RCW 42.17.190(6), certain local agencies may elect to have lobbying activity on their behalf reported by their elected officials, officers and employees in the same manner as lobbyists who register and report under RCW 42.17.150 and (42.17.]170: (a) Whenever such a local agency makes such an election, it shall provide the commission with a written notice. (b) After such an election, those who lobby on behalf of such local agency shall register and report all lobbying activity reportable under RCW 42.17 .190(5) in the same manner as lobbyists who are required to register and report under RCW 42.17.150 and 42.17.170. Such a local agency shall report pursuant to RCW 42.17.180. WAC 390-20-052 (Continued) (c) In order to terminate such an election, such a local agency shall provide the commission with a written notice and it shall report pursuant to RCW 42.17.190(5) thereafter. (d) The exemptions from reportable lobbying activity contained in RCW 42.17.190 (5)(d) apply to all agencies, whether or not they have exercised the election to report in the same manner as lobbyists who report under RCW 42.17.150, 42.17.170 and 42.17.180. The exemptions contained in RCW 42.17.160 (1), (4) and (5) do not apply to any agency. (5) Unless an agency has elected to report its lobbying pursuant to RCW 42.17.190(6) and subsection (3) of this section, an agency shall include the reportable lobbying activity on its behalf by an elected official in its quarterly report. Such an elected official does not file any separate report of that activity. (6) Reportable in-person lobbying by elected officials, officers and employees: (a) An elected official does not engage in reportable in-person lobbying on behalf of this agency unless and until that elected official has expended in excess of fifteen dollars of nonpublic funds in connection with such lobbying for or on behalf of any one or more members of the legislature or state elected officials or public officers or employees of the state of Washington during any three-month period as provided in RCW 42.17.190 (5)(d)(v)(B). (b) Other officers and employees do not engage in reportable in-person lobbying on behalf of their agency unless and until they have, in the aggregate, expended in excess of fifteen dollars of nonpublic funds in connection with such lobbying for or on behalf of any one or more members of the legislature or state elected officials or public officers or employees of the state of Washington or they have, in the aggregate, engaged in such lobbying for more than four days or parts thereof during any three month period as provided in RCW 42.17 .190 (5)(d)(v)(B). (c) When limits in (a) or (b) of this subsection have been exceeded, the agency shall report such elected official, officer, or employee as a "person who lobbied this quarter" on the front of PDC Form L-5 and include a listing of those excess expenditures as noted on that form. WAC 390-20-054 Agency lobbying --Reporting of lobbying by independent contractors. (1) An independent contractor who is retained to lobby on behalf of an agency shall register and report as a lobbyist pursuant to RCW 42.17.150 and 42.17.170. (2) An agency which retains an independent contractor as a lobbyist and reports all of its expenditures in connection therewith pursuant to RCW 42.17.190 shall not be obligated to file a report pursuant to RCW 42.17.180 with regard to that lobbyist. 70.10.10 May 1, 1999 70.10.20 July 1, 2005 70.10.20.a 70.10.20.b 70.10.10 70.10 Coffee and Light Refreshments The agency must first adopt written policies An agency may not provide coffee and light refreshments at meetings and formal training sessions unless the agency has formally adopted written internal policies and procedures that describe the approval process for these items. When may coffee and light refreshments be served? Per RCW 43.03.050(4), with approval ofan agency head or authorized designee, an agency may serve coffee or light refreshments at a meeting where: • The purpose of the meeting is to conduct state business or to provide formal training that benefits the state; and • The coffee or light refreshment is an integral part of the meeting or training session; and • The agency obtains a receipt for the actual costs of the coffee and/or light refreshments. This authority is not intended for use with the normal daily business of elective or appointive officials or state employees, but rather for special situations or occasions, as determined by the agency head or authorized designee, for example, recognizing agency or employee accomplishments. Per RCW 43.03.050(3), in addition to the requirements noted in Subsection 70.10.20.a, coffee and light refreshments may be served to elective or appointive officials or state employees regardless of travel status where: • The meeting or training session takes place away from the employee's or official's regular workplace; and • The agency person responsible for the meeting receives agency approval for the serving of coffee and/or light refreshments prior to the event. State Administrative & Accounting Manual Issued by: Office of Financial Management I 70.10.30 70.10.20c 70. 10.20.d 70.10.30 May 1, 1999 70.10.40 May1.1999 70 Other Administrative Regulations All legally authorized boards and commissions may provide coffee and/or light refreshments at their official public meetings, including executive sessions. Agencies are not required to provide coffee and/or light refreshments at meetings. Expenditures for coffee and light refreshments are prohibited in some cases Agencies may not make expenditures for coffee and/or light refreshments in the following situations: • For anniversaries of agencies, receptions for new, existing, and/or retiring employees or officials, election celebrations, etc. • Any "hosting" activities. "Hosting" includes, but is not limited to, those activities that are intended either to lobby a legislator or a governmental official, or are to be a social rather than governmental business event, and include expenditures for coffee and/or light refreshments for those whom agencies are not legally authorized to reimburse. Documentation of approval is required Agencies must document the request and approval for expenditures for coffee and/or light refreshments. Agencies may use a Travel Authorization (form A40-A) or agency equivalent form, an Invoice Voucher (form A 19- IA), or a formally written agency memorandum for this purpose. The documentation should provide support for the authorization, including: • The names of the state organizations or persons attending the meeting (includes conferences, conventions; and formal training sessions), and • The purpose of the meeting or expenditure. State Administrative & Accounting Manual 2 Issued by: Office of Financial Management 70.15.10 July 1, 2005 70.15.10.a 70.15.10.b 70.15.10 70.15 Meals with Meetings Reimbursement for meals with meetings RCW 43.03.050(3) provides for reimbursement for meals, for certain business meetings (includes conferences, conventions, and formal training sessions) involving elective and appointive officials and state employees. Additionally, other statutes may authorize agencies to provide reimbursement for meals for other individuals regardless of travel status. The agency head or authorized designee may authorize reimbursement for the allowable cost of meals (refer to Subsections I 0.40.40 and 10.90.20) for elective and appointive officials and state employees regardless of travel status, and without regard to the Three Hour Rule of Subsection I 0.40.50.(1 ). This authority is intended for use when the agency requires a person to attend a meeting where business meals are served, and where: • The purpose of the meeting is to conduct official state business or to provide training to state employees or state officials; and • The meals are an integral part of the business meeting or training session, and • The meeting or training session takes place away from the employee's or official's regular workplace, and • The agency head or authorized designee approves payment for the meals in advance of the meeting by defining in the agency internal policies and procedures (Subsection I 0.10.10) those meetings where attendance by agency employee(s), official(s) or others as authorized by statute. and reimbursement for the meals regardless of travel status, is advantageous to the state. Approvals must be in writing (Subsection 70.15.30). One-time approvals for recurring meetings can be made at the time of the initial request. State Administrative & Accounting Manual Issued by: Office of Financial Management 3 70.15.20 70.15.20 April 15, 201l4 70.15.30 April 15, 2004 70 Other Administrative Regulations Expenditures for meals with meetings are prohibited in some cases Agencies may not make expenditures for meals in the following situations: • For anniversaries of agencies, receptions for new, existing, and/or retiring employees or officials, election celebrations, etc. • Any "hosting" activities. "Hosting" includes, but is not limited to, those activities that are intended either to lobby a legislator or a governmental official, or are to be a social rather than governmental business event, and include expenditures for meals for those whom agencies are not legally authorized to reimburse. Documentation of advance approval for meals with meetings is required Agencies must document the request and approval in advance for expenditures for meals with meetings. Agencies may use a Travel Authorization (form A40-A) or agency equivalent form, an Invoice Voucher (form Al9-IA), or a formally written agency memorandum for this purpose. The documentation should provide support for the authorization, including: • The names of the state organizations or persons attending the meeting (includes conferences, conventions, and formal training sessions), and • The purpose or accomplishments of the meeting. State Administrative & Accounting Manual 4 Issued by: Office of Financial Management PDC FORM 711 CAPITOL WAY RM 206 PO B0X40908 OLYMPIA WA 98504-0908 (360) 753-1111 L-5 LOBBYING BY STATE AND LOCAL GOVERNMENT AGENCIES (Rev 1109) TOLL FREE 1-877-601-2828 Instructions Are Printed On Reverse Agency or Governmental Entity Name and Address Date prepared County PERSONS WHO LOBBIED THIS QUARTER Name Job title Annual salary $ General description of lobbying activities or objectives. (Include bill or WAC numbers. if any) D Check if person spent more than $15 of non-public funds in lobbying See instructions on reverse Name Job title Annual salary $ General description of lobbying activities or objectives. (Include bill or WAC numbers, if any) D Check if ni:orson S™"nt more than $15 of non-nublic funds in lobh..·i""'. See instructions on reverse. Name Job title Annual salary $ General description of lobbying activities or objectives. {Include bill or WAC numbers, if any) D Check if person spent more than $15 of non-public funds in lobbying. See instructions on reverse. EXPENDITURES FOR LOBBYING THIS QUARTER Report only the separately identifiable and measurable expenditures incurred for k>bbying purposes Salaries Of Persons Who Lobbied (Include only portion of quarterly salary attributable to lobbying) $ Travel (Include food, lodging, per diem payments and cost of transportation used) $ Brochures And Other Publications Whose Principal Purpose Is To Influence Legislation $ Consultants Or Other Contractual Services $ Total This Quarter $ Total To Date This Year $ CERTIFICATION: I certify that to the best of my knowledge the above is a Name of employee completing report true, complete and correct statement in accordance with RCW42.17.190. Signature of agency head Work telephone Number Work E-mail Report for calendar quarter ending Month Year % of time spent lobbying during quarter % of time spent lobbying during quarter % of time spent lobbying during quarter Attach additional sheets If more room is required THESE INSTRUCTIONS APPLY ONLY TO GOVERNMENT AGENCIES REPORTING PURSUANT TO RCW 42.17.190. WHO SHOULD REPORT? Each state agency, county, city, town, municipal corporation, quasi-municipal corporation or special purpose district which expends public funds for ulobbying". Please study the definitions of what is and is not included in lobbying to determine if your agency is required to report. "Lobbying" means attempting to influence the passage or defeat of any legislation by the state legislature or the adoption or rejection of any rule, standard, rate or other legislative enactment by any state agency under chapters 28.19 and 34.04 RCW. "Legislation" means bills, resolutions, motions, amendments, nominations, and other matters pending or proposed in either house of the state legislature, and includes any other matter which may be the subject of action by either house, or any committee of the legislature and all bills and resolutions which having passed both houses, are pending approval by the Governor. LOBBYING DOES NOT INCLUDE 1. Requests for appropriations by a state agency to OFM pursuant to RCW 43.88 or requests by OFM to the legislature for appropriations other than its own agency budget. Note that an agency representative who, in person, contacts a legislator or committee on appropriations matters is lobbying. 2. Recommendations or reports to the legislature in response to a legislative request expressly requesting or directing a specific study, recommendation or report on a particular subject. 3. Official reports including recommendations submitted annually or biennially by a state agency as required by law. 4. Requests, recommendations or other communications between or within state agencies or between or within local agencies. 5. Telephone conversations or preparation of written correspondence. 6. Preparation or adoption of policy positions within an agency or group of agencies. Note that once a position is adopted, further action to advocate it may constitute lobbying. 7. Attempts to influence federal or local legislation. LOBBYING NOT REPORTABLE 1. In person lobbying totaling no more than four days or parts of days during any three month period in aggregate for all officials and employees of the agency. In person lobbying includes testifying at legislative committee hearings and state agency hearings on rules and regulations but does not include attendance merely to monitor or observe testimony and debate. 2. In person lobbying by any elected official on behalf of his agency or in connection with his powers, duties or compensation. EXPENDITURES OVER $15 OF NON-PUBLIC FUNDS Any person (including an elected official) who expends more than $15 of personal or non-public funds for or on behalf of one or more legislators, state elected officials or state public officers or employees in connection with in person lobbying must be listed on the L-5 report. Attach a page showing the spender's name, and date, the source of funds and amount spent, and for whom the money was spent. Examples of these expenditures include entertainment, dinners and campaign contributions. REPORTS REQUIRED The L-5 report is submitted to cover each calendar quarter in which lobbying occurs. No report is required if no reportable lobbying has taken place during the quarter. DUE DATES: April 30 (1st quarter) October 31 (3rd quarter) July 31 (2nd quarter) January 31 (4th quarter) ONE CONSOLIDATED REPORT SHOULD BE SUBMITIED TO INCLUDE LOBBYING ACTIVITIES OF ALL DIVISIONS OR OFFICES OF AN AGENCY. Send Reports To: Public Disclosure Commission 711 Capitol Way, Rm 206 PO Box40908 Olympia, WA 98504..0908 SPECIAL NOTE: In lieu of reporting as provided in RCW 42.17.190 any agency or lobbyist for an agency may elect to register and report as provided in RCW 42.17 .150, _ 160, . 170 and .180. An agency so choosing must notify PDC of that fact and obtain necessary reporting forms and instructions. ATTACHMENT L-5 Agency or Governmental Entity Name Report for calendar quarter ending Month Year Expenditures over $15 of non-public funds Date Spender's Name Source of Funds Amount Person(s) on Whom Funds Spent $ Cn~ryl Girard From: Sent: To: Haidar, Mazen [Mazen.Haidar@kingcounty.gov] Thursday, December 04, 2008 10:41 AM Cheryl Girard Cc: Subject: Dye, Pete RE: Bapla 9-Lot Activity #L07SR042 an ~ alhi 7-Lot #L07SR043 ) Cheryl, We have completed our six review for the subject short plats, please provide the following information: Bapla Short Plat, Three copies of Approved Channelization Plan Three copies of Approved Illumination Plan Three copies of Structural Plans and Design Calculations Three copies of off-site public drainage easement for the stormwater vault outfall Malhi Short Plat, Three copies of Approved Channelization Plan Three copies of Approved Illumination Plan Three copies of Structural Plans and Design Calculations Three copies of revised Civil Plans addressing stormwater outfall system, curb-cut to maintenance access/ ADA ramp concerns per out telephone discussion this morning If you have any questions, please let me know, thanks! Mazen Haidar, P .E. Engineer II King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055 -1219 ffl82eQ,haldar@kingcounty.goy P 206 296 7133 F206 296 6€13 From: Cheryl Girard [mallto:cg@geodatum.com] Sent: Tuesday, November 25, 2008 2:05 PM To: Mott, Linda; Langley, Kristen; Haidar, Mazen; 'Kennedy, James P' Subject: RE: Bapla 9-Lot Activity #L07SR042 and Malhi 7-Lot #L07SR043 Linda, I LUSD ENGINEERING REVIEW SECTION STRUCTURAL REVIEW TRANSMITTAL TO: Hou-Ching Chow, P.E., S.E. *FM: Mazen Haidar, P.E. * DATE: March 17, 2009 *RE: SW Detention Vault for Plat of * Project # L07SR043 (project) Please accept and review the attached Structural Review Package. The LUSD Engineering Review Section has begun reviewing the engineering plans for the road and storm system; we anticipate completion by asap. Your efforts in assisting us with this deadline are greatly appreciated. Please contact me at 6-7133 when your review begins or at any time you require additional information. Upon structural approval, please retum the plans and approval documentation to the LUSD Engineering Review Section with an approval memole-mail and stating any additional required fees. *Description of Structure: Two-cell reinforced concrete underground vault *Location of Structure (Page# and/or describe location): Section 202605 Corner of Assessors Parcel# 3223059014 (NE 132nd street) Future Public ROW: Existing ______ _ ------- Future Public Tracts: Existing ______ _ ------- Future Private Tracts: Existing ______ _ ------- Future Easement ~------·): Existing ______ _ -------(Type) Restrictions/Requirements Related to the Structure: (e.g. other approvals (HPA, DOT), ordinances, elevations) *submittal Package Includes: minimum: S1 X 11 Sheets copies (1) Engineering Plans (Road/Drainage) Structural Drawings and Plans Manufacturing Specifications (if necessary) Design Calculations Soils Report 2 X 3 Sheets copies (2) copies (2) 2 Reports copies (2) copies (1) Note: If this is a REVISION to an approved structural plan, then include the approved plans. List of Key Contacts: King County Sensitive Area Staff: Design Engineer: Structural Engineering Plans: Other: ____________________________ _ Installation/Inspection Inspection Responsibility of Commercials: ________________ _ Contractor License # (if needed) _______ _ Structural Value $ ------ Attachments ----------------------------- *REQUIRED REVISION DATE:-------:::==---.--------- SIGNATURE: ~} -~ Haidar, Mazen From: Haidar, Mazen Sent: Thursday, December 04, 2008 10:41 AM To: 'Cheryl Girard' Cc: Dye, Pete Subject: RE: Bapla 9-Lot Activity #L07SR042 and Malhi 7-Lot #L07SR043 Cheryl, We have completed our six review for the subject short plats, please provide the following information: Bapla Short Plat, Three copies of Approved Channelization Plan Three copies of Approved Illumination Plan Three copies of Structural Plans and Design Calculations Three copies of off-site public drainage easement for the stormwater vault outfall Malhi Short Plat, Three copies of Approved Channelization Plan Three copies of Approved Illumination Plan Three copies of Structural Plans and Design Calculations Page I of2 Three copies of revised Civil Plans addressing stormwater outfall system, curb-cut to maintenance access/ ADA ramp concerns per out telephone discussion this morning If you have any questions, please let me know, thanks! Mazen Haidar, P.E. Engineer II King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055 -1219 rn.aAen_.lJ~iPar@k!ng_cqun_ty_,_g_Q_y_ P 206. 296. 7133 F 206. 296 6613 From: Cheryl Girard [mailto:cg@geodatum.com] , sent: Tuesday, November 25, 2008 2:05 PM To: Mott, Linda; Langley, Kristen; Haidar, Mazen; 'Kennedy, James P' Subject: RE: Bapla 9-Lot Activity #L075R042 and Malhi 7-Lot #L07SR043 12/04/2008 Lirs:Ja, What is current status of KC illumination plan approval for these projects? Please reply to all. Thank You, Cheryl Girard, P.E. Project Engineer/Project Manager GeoDatum, Inc. SURVEY-CIVIL-STRUCTURAL 1505 NW Mall Street Issaquah, WA 98027 Ph: (425) 837-8083 XT 306 Fx: (425) 837-0583 cg@g_eodatum.c_Qm From: Mott, Linda [mailto:Linda.Mott@kingcounty.gov] Sent: Friday, October 17, 2008 2:09 PM To: Cheryl Girard; Langley, Kristen; Haidar, Mazen; Kennedy, James P Subject: RE: Bapla 9-Lot Activity #L07SR042 and Malhi 7-Lot #L07SR043 Cheryl, Kris, Mazen and Jim - Page 2 of2 The lighting calculations Jim sent over by fax for the Mahli plat meet King County standards. The Bapla plat does not need any illumination since 116th Avenue SE is classified as a residential street south of SE 192nd Street. The illumination plan for the Mahli plat (provided by Puget Sound Energy) must be changed as follows: 1. Revise the bold note in the center of the sheet to indicate that the developer shall pay for all installation costs, the homeowner's association shall pay for SL5, SL6 and SL7, and King County's Dept. of Transportation will pay all monthly fees for SL1 through SL4. I believe PSE will have not problem billing the County a flat rate fee. 2. Add the approx. pole stations 3. Include the pole offsets, or at minimum include a note requiring the wood poles to be a minimum of 10-feet from face of pole to the edge of traveled way (edgeline), and the exposed aggregate poles 5.5 feet from face of curb or have breakaway capabilities Please Jet me know if you have questions. Thank you. Linda 12/04/2008 W King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 Engineering Review Comments Project Type : 7 Lots Short Plat Project Name : Malhi Short Plat Project Number : L06S0006 Review Date: 11/20/2008 Review No.: 5th ---------,-----------------------Activity Number: L07SR043 Fax: (206) 296 -6613 Sub Document Review Comments and Code Reference Item Item Reference C6 1 Please revise plans to show 25' vegetated flow path from dispersal trench to property line. 2 Work for proposed strom pipe from SDMH 2 to ditch appears located on private property, this work will need public drainage easement from adjacent property owner to the north, otherwise, plans shall be revised. C7 1 Please check 183rd profile for landing requirements per 2007 KCRS, and show grade elevation at 30' east of future ROW line C9 1 Section A -A appears in correct when checked against vault olan view, please check and revise plans accordinalv. 2 Please shaw the vault bottom at a slope per the 2005 KCSWDM ouidelines 3 Please correct the vault depth to a minimum of 7' General 1 Please oravide annroval for the Channalizaitan Plans 2 Please oravide annroval for the Illumination Plans 3 Please orovide annroval for the Significant Trees Plan 4 Please provide 4 sets of structural plans and design calculations for County reivew 5 Please submit 3 sets of revised plans ,¥M I II I for further Countv review. I D I Reviewer Name: Mazen Haidar, P.E. Email : mazen.haidar@kingcounty.gov Phone: (206) 296 -7133 Project Manager: Pete Dye, P.E. Consultant Response Date: Name: 14'0!f"- l'Vn-JL., f!..u/L"?f,-0 1 /JC, Nt,u fµ)~ £'Al'T'.SiDE.. C~ ~~,_.~, ~€- ~lf"~ WJJ~ I -, 1':...- -:svbp, tn ~fl , '' C ,1 (',,I re: C C_/ ....J ' ,-,r nT' J .,,_, I '] p ! -,,, "1 I, /// {JA) ~, =~ ~ ':1' -I !£:.Vf=...C.... -~ I .(£, ':.f..u; JY] 'I I .'--- OK m: @ 0 @: 0 W [ls'. In) [ID ',. t""\ /l .~ '1,,,e .-r;;r; ·-n e Nnv t. 6 2008 K.C. D.D.E.S. Complete IY/NI / Cf- / / / / '<.. ,..;__ ti'- / rj_ I tQ King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov ~rn:©rnoiJ~@ SEP 2 9 7nnA K.C. D.D.E.S. Engineering Plans Review Comments L,'J -(J-Vf f/ I /I I m IE ®. IE O ITl_ iE _!111 j Alffi 2 8 1002 /!/ Project Type : 7 Lots Short Plat Review Date : 10/25/2008 Reviewer Name : Mazen Haidar, P.E. Project Name : Project Number : Activity Number: Reference Item I Sheet CS 1 - 2 - 3 - 4 - 5 6 Malhi Short Plat Review No.: 3ra Email: mazen.haidar@metrokc.gov L06S0006 Phone: (206) 296 -7133 L07SR043 Fax: (206) 206 -6613 Sub Item Review Comments The proposed uncollected basin area grading work does not appear to support basin limits as shown in TIR, please revise grading work as needed. Consultant Response (.:;cJrPi'-16 0A) ~~C.G' [x;£,5 HA:'T'C:·11 £3¥71 ,._,, 1-i 1-11 f''...? 5t-ft'ti l'v: Ii~ 'Jtfe.., lcri'-At)1µfr ~ UE.,11,) F\£ll/"":.,£0 Proposed grade work for the on-site road between stations11 +00 and 11 +50 does not appear to support road section cross slope, please review plans as needed Proposed on-site concrete sidewalk at the intersection of rw "'71 of;JfC_ .t'._ / A_ t,l"f1l,. '7 _H1ri/£.. SE 183"' and 11_6th shall be located in the road right-of-[!3,z:ii) R,ty'/7 tA'Y I)<';, ff {i})[f>1T O. way, please revise plans as needed Please show SW to shoulder transition at north and [~_ ';;;,1,lci,J ,Z,4-v,f3 --..<""_;,ttOr/1'..1 ,tf1v'D south ends ot_the frontage road improvements and show [ve;J?HL., fte;i/ IJ)f..,D standard detail Please be advised that a review_pending for the . f:¥,<,11,.C f:;,,p ff\1/li:11€1-}f Vf,#;;'>t b,J proposed pavement design section and full compliance 7 . . . L ~ , thernview comments is necessary for the engineering (1At,{!,UL.-A',1 D,J ~ f/fn'f,, ,i)f:'_.E/(\,• • review approval 'Q.?.Br'f l [TFQ I TH WE 8f.... fl,11,}':;, Please extend cone. SW half way around the CDS, 93 ["5,0~ 1f1t;, 8R'!i.) f;,,;,,IT1JD&O KCRS, 2.08-A4 Sheet 1 of 3 Back Check ./ ./ tQ King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov Reference Sheet-CG Sheet-C7 TIR General Item 2 3 4 1 1 1 Sub Item Review Comments Clearly label control structure on plan and show maintenance access to the control structure, show removable bollards with standard details and access connection to 1161h For individual lots storm stubs please show pipe slopes and sizes on _elan. Please add/show profile design tor the storm system through the proposed R/D vault facility extending to storm connection in 1161h Ave. SE Please provide section detail for the vault as shown in red on plans, and in this detail show north property line with proposed rockery wall and any existing structures located in the adjacent property to the north The on-site access design profile shall be revised to show 2% cross slope from the centerline of 116'h to the curb face and to comply with 1993 KCRS for landing criteria requirement Please check and revise the vault design calculations the calculated release dose not exceed the target release. Also please check the limits of the uncollected basin area and make sure its consistent with proposed rading work as shown on plans. The short plat conditions of approval 6-B requires submittal of SWPPS plan consistent with the 2005 King County Surface Water Design Manual (KCSWDM) guidelines which dose not specify limited basin area exemption. Please submit this plan for County review Sheet 2 of 3 Consultant Response f'U:~l-"Sf_£ "5jt,£.;:( 7 Fe PM M tA-, or f<I. o F1'1:C--1 L--l"T, · .7-r~-' IP;, I fl-nt A,JC 4 CVf'1t;S of--'."3+./ f P5 ™VE- 13E:.bt.J -SVBl-1 11,E.v N,1 TH--rH'f- ~/f'?t"AJ f'L-~ ~-oz1-V"i1-(B :dl_/(;__4-l .__~, Aff €;.,W) Ix ·-n 12.... ~ Back Check / / / ~ King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov Reference 0 Item 2 3 5 6 8 9 10 11 Sub Item Review Comments Per the short plat conditions of approval 7-G, please provide sight-distance evaluation plan to show minimum ESD required on 1161h Ave. SE, and provide separate Illumination Plan for County review and approval Per the short plat conditions of approval 7-L, please show pedestrian tract on ]l_lan instead of easement Please be advised that Tree Retention plans review is pending and full compliance with the review comments is necessary for the engineering review approval Please provide three sets of Structural Design Plans and Calculations with soils report for the proposed R/D vault for County review Please be advised that Landscape and Recreation plans review is pending and full compliance with the review comments is necessary for the engineering review approval Please provide five sets of separate Significant Trees Plans for County review Please be advised that pavement design review is pending and full compliance with the review comments is necessary for the engineering review approval Please refer to plans and TIR redline markups and revise accordingly Please be advised that constructability review is pending and full compliance with the review comments if any is necessary for the engineering review approval Please submit 4 sets of revised plans and TIR along with all redline marku]l_s for further review. Sheet 3 of 3 Consultant Response Back Check 4 afl£6 -"SttfHT [A~Tttlvf",l, fl14t.,71,tJ1 rITTT) . .,-. ,r/ 11 i ,JlYT7 (1/J Pl.A1J '.'3,()£',M, c TT('£) / Li./ ·'7 ~ "'7 ,....,,,,,..~ _...,,,,..- 4'£-'f:Jf/1:£,"[ -C---5-R-'L. I .,. ..... / ~r ''B" Pt.ob-~ ~ ,,_ /tU'.)JONI,.£ P~-D.. Tf.'.t£ f2_f 1( -1,)i1lrJ fV,J!i 5vft1 r1fl:,,O ,4'/)6,tl;;,1 rw-c-6 ti.. /:JI w... B>t-::-PUJVJJ)f}) [JI.JPft__ . I '.' ;,£-flltfkfl,, "5L!Bn1777tl, IN A.111.U. '/ v t>L. '";, / ,1 1'X,?{~ £t.ffl 1·r,t;() H-£{<.tr,J r(l-f ,,,.~······ Cheryl Girard From: Haidar, Mazen [Mazen.Haidar@kingcounty.gov] Tuesday, September 09, 2008 3:27 PM Sent: To: Cheryl Girard Subject: Malhi Short Plat Constructability Review Comments Cheryl, Please review the constructability review comments below for the Malhi Short Plat and please respond accordingly: J~. • Please have the required luminaire at the arterial intersection (116th NE) added to the plans. At)W-0 ,_,/ KCDOT no longer allows lids in the sidewalk (CBs, utility vaults, grates etc.), please see SDMH2. The drainage will need to be revised to.eliminate this. fili.ouldn~ t!;ler~ be an additional CB at the end of the curb line on the cf-.,, north frontage? Rf:,VV7f:{} A'S, Kt.&'i/f.,-.;,TT-~. Please call OU;J!fl.Q p_l'.llYide. details for beveled pipe end and riprap protection at the vault outfall in the existing ditch. ~,(_ c:,11lA?I G--7 / None of the Stormfilter data information is provided, and the plans don't indicate which catch basin is the Stormfilter catchbasin. The Stormfilter access lid is 30" djanJel~i:_,,largyJ thatJ~e sJand~d TYQe _ll_li.d. Is a variance required in addition to an adjustment? ,S,l,Q1f1't..:7 f--.... Nt' 1.--C-lvtrf.C. t'~ff.,..;£{.J. ) Please confirm the 10-foot offset for CBs 5 and 6 addresses the vertical curb flowline location. The inside back wall of the CB needs t2-i3'1,9.n V\!rlic;illy >XJt9 the flowJin<;>, 911d !J;!e 100-foo~s<:lt d__pjtsn'.t ;aP,pear to satisfy this requirement. C~/LL•Hl{'(.75 t171\:L Df,t fv fit,1111:>f, nL-l-£',JL./JfL/t"j;,'(', ( • Please call out all grates to be vaned grates per KCRS 1993. "Sr,. fvOiL,S C.-{,;, ,ttJD Cr7 • , There appears to be a potential for ponding in the curbline at the north radius of the east end of SE 183rd Ct. / Please have the engineer provide several spot elevations to confirm positive flow will be provided. "tl,t_ ('.':-5, /. ADA ramps are required at the ends of sidewalk on the frontage. 1:'AMI':> ('~Vi-Cf[) -'5(£ C-6, Please provide an access road to the vault control structure per KCSWDM. Has the recreation plan been compared to confirm there are no confiicts with the vault configuration? ~l-'1 l'ju:.[$') ·l'ff1U1i.-btf rl£it',C-f1H1DtJ ...-5p..ztt:;f., WMP flU.'cAL n:.; f"ttt-L, CJfs..; '80f,~-K. or-.. V R!"n-0 I/ ~-r,-/ ip'& 5£-, "9'i7rf( tl-" Nftt-¥ TV a,i.:'TUJ L-, '$'"71..1.k;rt(Lf f}ff-i.JLlt:n-/ fl, (:.t,f--E' '1T?Ot-) "Bf'l'jt::~_ .. On Sheet C9 - • Personnel access is inadequate for the vault. The 5'x10' grates cannot be lifted by hand. Provide access spacing / per KCSWDM. The one access barrel shown is too tall (36" max including 1' thick V?ult ceiling)._Add 48" /. manhole rings to shorten the height of the narrow portion of the barrel. ·pc;,.:;•(-j"Jf £, j.Jl/Tf-• • Flow Restrictor Notes 5 and 6 do not comply with County standards and should be revised or deleted. Df.t.£ -ttD · / The depth callout 10.5' in the vault section is arithmetically incorrect (0.5 + 2.55 + 5 + 1 = 9.05). The water quality depth callouts don't agree (4' vs 5'). (;t'µ.{L.oTI:.()/'MkTZ-tri".'7 "Tl f'.. · ( . Please add the required grate with personnel access over the restrictor sump per KCSWDM. i:;o 1.;,f;, ~as the vault civil been compared to the structural plan for agreement between the plans? <:rifL(,, (,fl/M"L .. VI\V1-::r [}f<c-,1(;11,.) 7T) Bf ~x 1!311i---rrF-O i I,) ·111(. nF(L'U-' Mazen Haidar, P.E Engineer ll King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 mazen.haidar@kingcounty.gov 1 Cheryl Girard ' '. ,-~ From: Sent: To: Cc: Subject: Attachments: Cheryl, Pernn, Henry (Henry.Perrin@k1ngcounty gov] Tuesday, September 09, 2008 146 PM cg@geodatum.com Langley, Kristen Malhi short plat 09092008.pdf '-I I've attached the comments on the channelization plans. You can email the revised plans as pdfs rather than printing out paper plans if you'd like. ";:t"·,+,,,~ "5f f'1tUrTf t.."-( Vilt f:,/1111L·, In addition to making the changes noted on the plans, please add the following general notes: Contractor shall notify traffic engineering (206-296-6596) at least 10 business days prior to striping to coordinate channelization layout and sign installation. '9("/IJL All channelization shall be installed in accordance with King County Road Standards~¥: Contractor shall remove existing striping where it conflicts with proposed channelization . .(;;t;Df- Existing striping to remain shall be replaced where damaged or obscured by construction activities, or where faded, as directed by King County. ~ The markups on the signature block do not show up due to drawing size. DOT will sign off on these plans, not ODES. Please use a block similar to the following: KING COUNTY TRAFFIC ENGINEERING ENGINEER DATE ENGINEER DATE SUPERVISING ENGINEER DATE Thank you Hemy M. Perrin, PE. Sr. Safety Management Engineer King County DOT, Traffic Engineering Section 201 S Jackson Street, KSC-TR-0222 Seattle, WA 98104 (206) 263-6138 1 ~I C 0 ~. ~. ! ' ~. ScJ i L ' L,A'i(2-S SE 1 / 4, NE 1 / 4, SEC 32, TWN 23N, RGE SE, W.M. C0 ® O(U:.:1( I/Tl LIT[ s t1"' 1.j fit'-r ii-, f J\~o .;r~1f1 rl& 1tJ ( P:K11f,-JG sc ,za:,r£. o Sf".}<.tc), ft/10 --\.Jlt.f# (-)'.., <Tl ,J (r 6) )YH\•J r; 'C 1.,,._F,.hp,J LJvt Vi~rr1 ~ I ,; '(!J '"'"'f(Jf- 'i !f.>./1-1'}~\ v1il fj_( i J./-o ""' r~ 1rw~1ff~/(u1J I I Jx \ -·-I. -. _-,.,1,~-:.-~-=--.// ' -"la . ~ ---""""' SC"-' 1~_-..:,.._ 20 \$}jJ£-20n. /,'nl '°\Y u-ic,1_,: s 1n ~ .J~L.~ I ro&E a-:-.:.-.... p..i-'!p,,,,~ ,,, t)<J<ii(fi · r-~i:::·,.,,~--}f ·--__ ...... -- N8i1'47'21•E r--------------- ' 7 I / ~ I LOT 7 / . I ~ I ~~ L: : ____________ J ~--,e---. LOT 15 --, I I I \ ) I ,,<:,/ ?l>-'~--- \i~/ ______ JI I ~ I I a~O" ; J :C>ec1duoc.~j' I.OT :S 1 I ,I I i,;..__ ---> I -:~__. I "' ~ I I I I I I I I ----------------I ?tR-crJt.~ """i-~""'.,. 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FUl'\JRE R.O.W IMPROVEMENTS SECJJON A H.T.S. lolOTE Fll-W.. ~U,tA:rio!<_ ~. ~ ~ r ~t1·--~~~/---~_ .. ~ .... . I I -I . . I (/) ·---I I I --· I~ ! I I , , , 1 1 1 I L v.Jt. (),)\ ,,, ' ·~ le---°"-~ ... w ___ ....,... ........ 1-----· ·-.. ------,.L-i ._..__,__ .. --, / •' _.L_;.:r - '----.ri: --(ffl'J IBA\,fl "4cnON .. • ............ ""~ . ....., __ -"-- JRA'llfl Plfffcnc:t.t ~!(IS QT.u.D""Uft!~ .® _.,.:)€,..,.. ,---4JE!IMJF ·----'9 PAVEI.ENTMAAKNQS --r~ 6-~0lj Illa~~··~ 1 (,.--, \-'7 "·_/ ,, -' I j '\. I L..:S . l-•'--1 CTrJI -I + ·~ ..... ------.---~cs:·~ I.I ..... T lftllll'II ~ D/1'~ ~ -1 ffl ~ ---1 I ~~IU10"1 De"1Ellus-J D?E3FfM I T't'!'£·2,....-----~.'/._'., -=.:..""-""':"'-/ '--,, ~--~-:--. ' ~ ~--<>M:'llll:c.T ~,. u·-u ,sr-:r;u·r- i,....:.::..L~ • --........... D77I ~~It( _______ , -:r ... , = .... -----" ,....nNIT ~~// CET.U P~ R.ill"l.'f -·:..:;:. \: -1;. r ,..~,.,,_ ' .... ,-.<' ·, ,J I--"--+,-,,+·" -+.-n L W~ ,..-,-1 !; ' ~i .., ~ 2 C, " i; O:! )j 11 ~! _, I II I I 41 \i •' ll j I _U Qlf l I- < z bl :!! c[ ~ '.';! i l-i5<< 0:: .: :,:: 3: 0 < "' I N CD ~ Vl::J ~5 l,,J >'--z :: z ::r: ~ ,., ~ ~ i:i a, ::::e @) ~ .J.' ~ ~ ~ tj '"' 0 """ = (.) = ~ ~ "' [o's . l_ij ~ing County ~1e,,artment of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 Engineering Review Comments Project Type : 7 Lots Short Plat Project Name : Malhi Short Plat Project Number : L06S0006 Review Date: 10/16/2008 Review No.: 4th .,...,,.,,,,,.,,..,..,.,..-----------,-----,---------Activity Number: L07SR043 Fax: (206) 296 -6613 Sub Document Review Comments and Code Reference Item Item Reference C1 1 Please check the USPS approval stamp, it says Soos Creek Sewer, revise as needed C2 1 Lable the CDS ovmt. radius and ROW radius 2 The southerly line for Tract B should be the north lot line for lot 7, olease show on clans 3 Label curb radii at the intersection of 116th and 183rd cs 1 Please check and revise garde work as shown in red the neck of the CDS CG 1 Please show connection(s) to proposed dispersal trench on lot 5, show connection from trench to storm conveyance system, and show dispersal trench location with required 25' vegetated ftow path, show trench setback and std. detail 2 SDMH structure and cover in 116th cannot be in SW, please relocate. 3 Please show maintenance access to control structure and show removable bollards with standard details 4 Please make sure rip rap pad at the north end of the proposed conveyance system in 116th is completely within KC road ROW 5 Show location of street liq ht on plans C7 1 Please check 183rd profile for landing requirements per 2007 KCRS, and show grade elevation at 30' east of future ROW line 2 In the strom outfall profile, please revise to provide adequate oipe cover, see redline markups C9 1 Please show elelvation of footing drains to the vault in the vault section views, and show the footing drains downstream discharge location in plan views on the other sheets as well Reviewer Name: Mazen Haidar, P.E. Email : mazen.haidar@kingcounty.gov Phone : (206) 296 -7133 Project Manager: Pete Dye, P.E. Consultant Response Date: / D/-::J"',i oe Name: -l-, , [XW& ) J(,.) l'J ;r- O{),()£ Ir ',A./Y ,ari/1,e, .{)(Vlf:/ /)t?l,_/t., f1C1,,~£J 15fl-f1A)/) I/# a),1)£-1 'Zo 1 X W 1Cir4UL-/11£) ./)f?J~ ./ ,IJ' ) /i./ tr,., /}[)/Je, ~ ~@~ow~rni 00/Vlc-JU '--' 111;1 -:i 1 ?nnR -a.wt-K.C. 0.0.E.S. Complete IY/NI ,/ / / ;/ / < c,J. ,._..,.,..,-- ~ .,....,..,. . "'----- ,__...---· ~- . Sub Document Review Comments and Code Reference Consultant Response Date: Complete !tam Item Reference Name: fY/NI 2 Please correct the vault section B-B / ¥ ')-t J H'.-<-' 3 Please show the vault bottom at a slope per the 2005 11!JA)fi-KCSWDM quidelines ""· 4 Please show the proposed sedimentation cleanout in plan views on plan sheets and show its downstream discharge .())A.!£--location as well 5 Please correct the riser information and discharge pipe l)t)AJ/2.--information as well 6 Please locate 5'X10' ooening over the control structure f)(,N ,c,,, .,. TIR 1 Please check the vault design calcualtions and make sure ,r;r;!l)e,/,;~;:,, ·1JI!. 1JfzVh11JtJ i' Peakflow marchinq calculations is accurate General 1 Please orovide annroval for the Landscaoe Plans Iv. /A (7 7 Z/ / .. _,, -:-;,v "< 2 Please provide aooroval for the Channalizaiton Plans / ~,,-;:. //AA:7 ./ , / ; GCJ of. 3 Please provide aooroval for the Illumination Plans 1". . .Tl ·ttl/, ~ 'j ,._,, ,/), / ~ Di 4 Please refer to the attached Significnat Trees plans review f./{~!J?.~6~~3E"4f: ';fb[t;g// comments and revise accordinqly "- 5 Please provide 4 sets of structural plans and design 11£# &:/~!r:-~1 "v~ ~ t,( -~ calculations for Countv reivew ?f1 /•f /fl I _.,, 6 Please revise the bond quantities calculations as needed :r/r-.....;1 ,~ 7 Please refer to plans and TIR redline markups and revise /1/.Jl.!6Jf'5 (},£)/"JPL-e~.-fJ ,.-- accrodinqly ~ 8 Please su~i';re~s of revised plans and TIR for further 0/<... / Countv revi ' W King County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 Engineering Review Comments Project Type : 7 Lots Short Plat Project Name : Malhi Short Plat Project Number: L06S0006 Review Date: 10/16/2008 Review No.: 4th Fax: (206) 296-6613 ..,....,,.,,..,,.,,,.,,...,.,,.------------,,--.....,...,.,.,...,..,.,.....,,..,..,.,,.....- Activity Number: L07SR043 Sub Document Review Comments and Code Reference Item Item Reference C1 1 Please check the USPS approval stamp, it says Soos Creek Sewer, revise as needed C2 1 Lable the CDS ovmt. radius and ROW radius 2 The southerly line for Tract B should be the north lot line for lot 7, olease show on olans 3 Label curb radii at the intersection of 116th and 183rd cs 1 Please check and revise garde work as shown in red the neck of the CDS C6 1 Please show connection(s) to proposed dispersal trench on lot 5, show connection from trench to storm conveyance system, and show dispersal trench location with required 25' vegetated flow path, show trench setback and std. detail 2 SDMH structure and cover in 116th cannot be in SW, please relocate. 3 Please show maintenance access to control structure and show removable bollards with standard details 4 Please make sure rip rap pad at the north end of the proposed conveyance system in 116th is completely within KC road ROW 5 Show location of street liaht on olans C7 1 Please check 183rd profile for landing requirements per 2007 KCRS, and show grade elevation at 30' east of future ROW line 2 In the strom outfall profile, please revise to provide adequate nioe cover, see redline markuos C9 1 Please show elelvation of footing drains to the vault in the vault section views, and show the footing drains downstream discharge location in plan views on the other sheets as well Reviewer Name : Mazen Haidar, P.E. Email : mazen.haidar@kingcounty.gov Phone : (206) 296 -7133 Project Manager: Pete Dye, P.E. ConsultantResponse Date: Name: . . ' . Complete IY/Nl Sub Document Review Comments and Code Reference Consultant Response Date: Complete Item Item Reference . Name: IV/NI 2 Please correct the vault section 8-8 -3 Please show the vault bottom at a slope per the 2005 KCSWDM quidelines 4 Please show the proposed sedimentation cleanout in plan views on plan sheets and show its downstream discharge location as well 5 Please correct the riser information and discharge pipe information as well 6 Please locate 5'X 1 O' ooeninq over the control structure TIR 1 Please check the vault design calcualtions and make sure Peakflow marchinq calculations is accurate General 1 Please provide anoroval for the Landscape Plans 2 Please orovide aooroval for the Channalizaiton Plans 3 Please Provide annroval for the Illumination Plans 4 Please refer to the attached Significnat Trees plans review comments and revise accordinalv 5 Please provide 4 sets of structural plans and design calculations for Countv reivew 6 Please revise the bond quantities calculations as needed 7 Please refer to plans and TIR redline markups and revise accrodinalv 8 Please submit 3 sets of revised plans and TIR for further County review. t,.'11.<ing County Department of Development and Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-1219 Engineering Review Comments Project Type : 7 Lots Short Plat Project Name : Malhi Short Plat Project Number : L06S0006 Review Date: 10/16/2008 Review No.: 4th ..,...,..,,..,,..,,..,.-,--------------,,,....----------,--.,....-Activity Number : L07SR043 Fax: (206) 296 -6613 Sub Document Review Comments and Code Reference Item Item Reference C1 1 Please check the USPS approval stamp, it says Soos Creek Sewer, revise as needed C2 1 Lable the CDS ovmt. radius and ROW radius 2 The southerly line for Tract B should be the north lot line for lot 7, olease show on clans 3 Label curb radii at the intersection of 116th and 183rd cs 1 Please check and revise garde work as shown in red the neck of the CDS C6 1 Please show connection(s) to proposed dispersal trench on lot 5, show connection from trench to storm conveyance system, and show dispersal trench location with required 25' vegetated flow path, show trench setback and std. detail 2 SDMH structure and cover in 116th cannot be in SW, please relocate. 3 Please show maintenance access to control structure and show removable bollards with standard details 4 Please make sure rip rap pad at the north end of the proposed conveyance system in 116th is completely within KC road ROW 5 Show location of street liaht on Plans C7 1 Please check 183rd profile for landing requirements per 2007 KCRS, and show grade elevation at 30' east of future ROW line 2 In the strom outfall profile, please revise to provide adequate nioe cover, see redline markuns C9 1 Please show elelvation of footing drains to the vault in the vault section views, and show the footing drains downstream discharge location in plan views on the other sheets as well Reviewer Name : Mazen Haidar, P .E. Email : mazen.haidar@kingcounty.gov Phone : (206) 296 -7133 Project Manager: Pete Dye, P.E. . Consultant Response Date: Name: . Complete IY/Nl Sub Document Review Comments and Code Reference Co_nsultant Response Date: Complete Item Item Reference Name: IY/Nl 2 Please correct the vault section B-B - 3 Please show the vault bottom at a slope per the 2005 KCSWDM auidelines 4 Please show the proposed sedimentation cleanout in plan views on plan sheets and show its downstream discharge location as well 5 Please correct the riser information and discharge pipe information as well 6 Please locate S'X 1 O' openina over the control structure TIR 1 Please check the vault design calcualtions and make sure Peakflow marching calculations is accurate General 1 Please Provide annroval for the Landscape Plans 2 Please provide aooroval for the Channalizaiton Plans 3 Please provide annroval for the Illumination Plans 4 Please refer to the attached Significnat Trees plans review comments and revise accordinalv 5 Please provide 4 sets of structural plans and design calculations for Countv reivew 6 Please revise the bond auantities calculations as needed 7 Please refer to plans and TIR redline markups and revise accrodingly 8 Please submit 3 sets of revised plans and TIR for further Countv review. ti King County Road Services Division Materials Laboratory Department of Transportation RSD·TR-0100 155 Monroe Avenue Northeast, Building D Renton, WA 98056-4199 www.metrokc.gov/ October 6, 2008 TO: Mazen Haidar, P.E., Engineer II, Department of Development and Environmental Services, Site Engineering and Planning Section VIA: Alan D. Corwin, P.E., Materials Engineer, Materials Laboratory, Project Support Services Group FM: Douglas Walters, P.E., Engineer III, Materials Laboratory, Project Support Services Group RE: Malhi 7 Lot Short Plat Pavement Evaluation: L07SR043 As requested, we have reviewed the designed arterial pavement section for 116'h A venue SE as- sociated with improvements for the Mahli 7 Lot Short Plat. The design pavement section was submitted by Geo Group Northwest Inc. in a report dated September 25, 2008. Based on our re- view, we understand the recommended pavement section is as follows: • 2.0 inches minimum compacted depth HMA Class '!, " • 4.0 inches minimum compacted depth HMA Class W' or I" • 9.0 inches minimum compacted depth Crushed Surfacing Base Course We concur the above section is adequate and would recommend approval. We trust this informa- tion meets your current request. Please call me at 296-7708 if you have any questions. tQ King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Engineering Plans Review Comments Project Type : 7 Lots Short Plat . Review Date : 10/25/2008 Reviewer Name: · Mazen Haidar, P.E. Project Name : Malhi Short Plat Review No.: 3ru Email: •mazen.haidar®metrokc.gov Project Number : L06S0006 ••• Phone: (206) 296 -7133 . .. .. Activity Number : L07SR043 . · Fax: (206) 206 -6613 . . ·.· ... .. : . . . Sub .. Reference Item Review Comments Consultant Response Back Item Check . . ' ·;-_": :. Sheet CS 1 The proposed uncollected basin area grading work does not appear to support basin limits as shown in Tl R, olease revise aradina work as needed. 2 Proposed grade work for the on-site road between stations11 +00 and 11 +50 does not appear to support road section cross slooe, clease review olans as needed 3 Proposed on-site concrete sidewalk at the intersection of SE 183"' and 1161h shall be located in the road right-of- way, please revise plans as needed 4 Please show SW to shoulder transition at north and south ends of the frontage road improvements and show standard detail 5 Please be advised that a review pending for the proposed pavement design section and full compliance the review comments is necessary for the engineering review annroval 6 Please extend cone. SW half way around the CDS, 93 KCRS, 2.08-A4 Sheet 1 of 3 ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Sub Reference Item Item Sheet-CS 1 2 3 4 Sheet-C7 1 TIR 1 General 1 . . ' Back Review Comments Consultant Response Check .. .. Clearly label control structure on plan and show maintenance access to the control structure, show removable bollards with standard details and access connection to 1161 " For individual lots storm stubs please show pipe slopes and sizes on plan. Please add/show profile design for the storm system through the proposed RID vault facility extending to storm connection in 116"' Ave. SE Please provide section detail for the vault as shown in red on plans, and in this detail show north property line with proposed rockery wall and any existing structures located in the adiacent orooertv to the north The on-site access design profile shall be revised to show 2% cross slope from the centerline of 116"' to the curb face and to comply with 1993 KCRS for landing criteria requirement Please check and revise the vault design calculations the calculated release dose not exceed the target release. Also please check the limits of the uncollected basin area and make sure its consistent with proposed QradinQ work as shown on plans. The short plat conditions of approval 6-B requires submittal of SWPPS plan consistent with the 2005 King County Surface Water Design Manual (KCSWDM) guidelines which dose not specify limited basin area exemption. Please submit this plan for County review Sheet 2 of 3 ! ~ King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov Sub Reference Item Item 2 3 4 5 6 7 8 9 10 11 I Back· Review Comments Consultant Response Check . . Per the short plat conditions of approval 7-G, please provide sight-distance evaluation plan to show minimum ESD required on 116., Ave. SE, and provide separate Illumination Plan for Countv review and aooroval Per the short plat conditions of approval 7-L, please show pedestrian tract on plan instead of easement Please be advised that Tree Retention plans review is pending and full compliance with the review comments is necessarv for the ennineerina review annroval Please provide three sets of Structural Design Plans and Calculations with soils report for the proposed RID vault for Countv review Please be advised that Landscape and Recreation plans review is pending and full compliance with the review comments is necessary for the engineering review annroval Please provide five sets of separate Significant Trees Plans for County review Please be advised that pavement design review is pending and full compliance with the review comments is necessarv for the enaineerinn review annroval Please refer to plans and TIR redline markups and revise accordingly Please be advised that constructability review is pending and full compliance with the review comments if any is necessarv for the enaineerina review aooroval Please submit 4 sets of revised plans and Tl R along with all red line markups for further review. Sheet 3 of 3 ti King County Dei;,artment of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Engineering Plans Review Comments Project Type : 7 Lots Short Plat Review Date : 10/25/2008 Reviewer Name : Mazen Haidar, P.E. Project Name : Malhi Short Plat Review No.: 3'0 Email: mazen.haidar!@metrokc.gov Project Number : L06S0006 Phone: (206) 296 -7133 Activity Number : L07SR043 Fax: (206) 206 -6613 Sub Back Reference Item Review Comments Consultant R!15po11se Check Item . . . Sheet CS 1 The proposed uncollected basin area grading work does not appear to support basin limits as shown in TIR, please revise grading work as needed. 2 Proposed grade work for the on-site road between stations11 +00 and 11 +50 does not appear to support road section cross slope, please review plans as needed 3 Proposed on-site concrete sidewalk at the intersection of SE 183'" and 1161h shall be located in the road right-of- wav, please revise plans as needed 4 Please show SW to shoulder transition at north and south ends of the frontage road improvements and show standard detail 5 Please be advised that a review pending for the proposed pavement design section and full compliance the review comments is necessary for the engineering review aooroval 6 Please extend cone. SW half way around the CDS, 93 KCRS, 2.08-A4 Sheet 1 of 3 ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Sub Reference Item Item Sheet-C6 1 2 3 4 Sheet-C7 1 TIR 1 General 1 Back Review Comments Consultant Response Check '. Clearly label control structure on plan and show maintenance access to the control structure, show removable bollards with standard details and access connection to 1161h For individual lots storm stubs please show pipe slopes and sizes on plan. Please add/show profile design for the storm system through the proposed R/D vault facility extending to storm connection in 116th Ave. SE Please provide section detail for the vault as shown in red on plans, and in this detail show north property line with proposed rockery wall and any existing structures located in the adiacent orooertv to the north The on-site access design profile shall be revised to show 2% cross slope from the centerline of 1161 " to the curb face and to comply with 1993 KCRS for landing criteria requirement Please check and revise the vault design calculations the calculated release dose not exceed the target release. Also please check the limits of the uncollected basin area and make sure its consistent with proposed oradina work as shown on clans. The short plat conditions of approval 6-B requires submittal of SWPPS plan consistent with the 2005 King County Surface Water Design Manual (KCSWDM) guidelines which dose not specify limited basin area exemotion. Please submit this olan for Countv review Sheet 2 of 3 ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov . Sub Reference Item Item 2 3 4 5 6 7 8 9 10 11 I . . Back Review Comments ' Consultant Response Check . Per the short plat conditions of approval 7 -G, please provide sight-distance evaluation plan to show minimum ESD required on 116" Ave. SE, and provide separate Illumination Plan for Countv review and annroval Per the short plat conditions of approval 7-L, please show pedestrian tract on plan instead of easement Please be advised that Tree Retention plans review is pending and full compliance with the review comments is necessarv for the enoineerino review annroval Please provide three sets of Structural Design Plans and Calculations with soils report for the proposed RID vault for Countv review Please be advised that Landscape and Recreation plans review is pending and full compliance with the review comments is necessary for the engineering review annroval Please provide five sets of separate Significant Trees Plans for County review Please be advised that pavement design review is pending and full compliance with the review comments is necessarv for the enaineerina review annroval Please refer to plans and TIR redline markups and revise accordingly Please be advised that constructability review is pending and full compliance with the review comments if any is necessarv for the enaineerina review annroval Please submit 4 sets of revised plans and TIR along with all red line markups for further review. Sheet 3 of 3 ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Engineering Plans Review Comments Project Type : 7 Lots Short Plat Review Date : 10/25/2008 Reviewer Name : Mazen Haidar, P.E. Project Name : Malhi Short Plat Review No.: 3'" Email: mazen.haidar@metrokc.gov Project Number : L06S0006 Phone: (206) 296 -7133 Activity Number : L07SR043 Fax: (206) 206 -6613 Sub Back Reference Item Review Comments Consultant Response Check Item . . Sheet CS 1 The proposed uncollected basin area grading work does not appear to support basin limits as shown in TIR, please revise <::1radino work as needed. 2 Proposed grade work for the on-site road between stations11 +00 and 11 +50 does not appear to support road section cross slooe, please review olans as needed 3 Proposed on-site concrete sidewalk at the intersection of SE 183"' and 1161h shall be located in the road right-of- way, please revise plans as needed 4 Please show SW to shoulder transition at north and south ends of the frontage road improvements and show standard detail 5 Please be advised that a review pending for the proposed pavement design section and full compliance the review comments is necessary for the engineering review annroval 6 Please extend cone. SW half way around the CDS, 93 KCRS, 2.08-A4 Sheet 1 of 3 w King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Sub Reference Item Item Sheet-CG 1 2 3 4 Sheet-C7 1 TIR 1 General 1 Back Review Comments Consultant Response Check . .... . Clearly label control structure on plan and show maintenance access to the control structure, show removable bollards with standard details and access connection to 116'" For individual lots storm stubs please show pipe slopes and sizes on plan. Please add/show profile design for the storm system through the proposed RID vault facility extending to storm connection in 116'" Ave. SE Please provide section detail for the vault as shown in red on plans, and in this detail show north property line with proposed rockery wall and any existing structures located in the adjacent orooertv to the north The on-site access design profile shall be revised to show 2% cross slope from the centerline of 116'" to the curb face and to comply with 1993 KCRS for landing criteria reauirement Please check and revise the vault design calculations the calculated release dose not exceed the target release. Also please check the limits of the uncollected basin area and make sure its consistent with proposed aradina work as shown on clans. The short plat conditions of approval 6-8 requires submittal of SWPPS plan consistent with the 2005 King County Surface Water Design Manual (KCSWDM) guidelines which dose not specify limited basin area exemction. Please submit this clan for Countv review Sheet 2 of 3 ; ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Sub Reference Item Item 2 3 4 5 6 7 8 9 10 11 . . . , . Back Review Comments Consultant Response I• Check 1.: .. " . . . . Per the short plat conditions of approval 7 -G. please provide sight-distance evaluation plan to show minimum ESD required on 116th Ave. SE, and provide separate Illumination Plan for Countv review and aooroval Per the short plat conditions of approval 7 -L, please show pedestrian tract on plan instead of easement Please be advised that Tree Retention plans review is pending and full compliance with the review comments is necessarv for the ennineerina review annroval Please provide three sets of Structural Design Plans and Calculations with soils report for the proposed RID vault for Countv review Please be advised that Landscape and Recreation plans review is pending and full compliance with the review comments is necessary for the engineering review annroval Please provide five sets of separate Significant Trees Plans for County review Please be advised that pavement design review is pending and full compliance with the review comments is necessarv for the enc ineerinn review annroval Please refer to plans and TIR redline markups and revise accordingly Please be advised that constructability review is pending and full compliance with the review comments if any is necessarv for the enaineerina review aooroval Please submit 4 sets of revised plans and TIR along with all redline markups for further review. Sheet 3 of 3 ·' ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www .metrokc.gov Project Type : 7 Lots Short Plat Project Name : Malhi Short Plat Project Number : L06S0006 Activity Number : L07SR043 Sub Engineering Plans Review Comments Review Date : 10/11/2007 Reviewer Name : Mazen Haidar, P.E. Review No.: 1 SL Email: mazen.haidar@metrokc.gov Phone: (206) 296 -7133 Fax: (206) 206 -6613 Back Reference Item Review Comments Consultant Response Check Item Sheet C1 1 Please add King County Standard Cover Sheet with {LJ/.Je. complete information, show the United States Postal Services (USPS) approval for Mailboxes location and / show mailbox standard detail. Also show the short plat conditions of annroval on the cover sheet 2 Label this sheet as Horizontal Control Plan and only iXY/12-/ parcel lines, proposed lot lines, road ROW and centerlines, auarters/sections ties and/or monuments 3 Label the road classification on plan -/2J![l/Z:.,. / / Sheet C3 1 Please show sediment trap with standard details on ilVL; A;Cfl e---1 plan, show interceptor swales with standard details ["o) Re 0' m ,, t1r1 ''°' In\ UlJ @, '<J c~ lJ I'} IS l0 , II 11\j , '." ')1 lf)8 K.C. D.D.E.S. Sheet 1 of 6 ~ King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov Sub Reference Item Item Sheet C4 1 2 3 4 5 6 7 8 Review Comments Please add the following note on plan: Per KCRS Section 4. 01 F, a 1 inch full width overlay shall be required.· Appropriate repairs to the existing subgrade, base material, surfacing and pre-level may be required prior to placing the overlay. The overlay may be waived only upon written request and after an evaluation of pavement conditions and/or channelization requirements has been completed and approved by the County Road Engineer or Development Enqineer Please show individual lots storm stubs stations, stations offset, pipe invert elevations, slope, size and material to be used. Since grades appear too flat across the property frontage please show spot elevation at every 20-feet Show street trees on this plan sheet Please show 4 ADA ramps at the intersection of SE 183'• and 116"' Ave. SE. Please make sure CB are located at no more than 200- feet spacing, it appears that at least one CB is needed between the CDS hiah noint and CB'S 1 & 2 Show CB's numbering on this sheet Please check and revise the finished grade contour lines 100 & 98 to reflect S.W. improvement, see redline markuos Sheet 2 of 6 Back Consultant Response Check ilJ4/L- / [X.Yt/.L-JC r J·_'O / ~,,. ,., rJ. ) . . ' -··,:· _// ' ':£>'?e_, 5/'{,:7 '/~~ r(£)1t!f&: y:..Uf'' f.,-;~ r ,,.C:,;,<t3 ,,<> ;,'7 .J/',; 'A//?,' i '"J" .-<... /fJ;&l;'f'_ ./ a,/1& / [XJ/1/tt,... / 9& s;:.;e ~:-:/1 cG/ / ftn)L / ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov Sub Reference Item Item 9 10 11 12 Sheet-CS 1 2 Sheet-CG 1 2 Review Comments Please label Landscape Tract and Drainage easement to King County within the Landscape Tract It is unclear how surface runoff from required road improvements across the property frontage in 1161" will be routed to the on-site Vault facility, olease show 116'" Ave. SE is an Arterial Road, please provide pavement design calculations and revise the typical road section as needed. In the typical road section, show 5- feet bike lane, 11-feet travel lane, 6-feet (1/2 of center lane), 1-foot pavement saw cut line, ex. fog line, and 6- foot concrete sidewalk across the prooertv frontaae Please extend cone. SW half way around the CDS, 93 KCRS, 2.08-A4 Clearly label control structure on plan and show maintenance access to the control structure, show removable bollards with standard details and access connection to 1161h Add a note on plans indicating that King County ODES approval is for storm and road improvements only as shown hereon. Please add/show profile design for the storm system through the proposed RID vault facility extending to storm connection in 116th Ave. SE Please revise the on-site road profile design to comply with landing requirement per the 1993 KCRS, and make sure existing road cross slope in 1161" is not affected by the on-site access vertical design (min. 2% cross slope shall be maintained from ROW Centerline), see redlines Sheet 3 of 6 Back Consultant Response Check [Z;tf::._ ./ 71te~ A/IU /3';f'~5 / J;?)il/e'J f'//1~rlwr' c· iJt:H tfl) C4fZ_e,-r,,f -177 ! N ..:> /A/ (/Y- 4/1t~)7EL'$Jlc4"Jt',, ,<e/t>,c-r .awe-/ i?),1/L. ~ _/)[);,J,[_ ~fC v. ~- c'.·'£ ,;)/!, ~51-/f:_/;,;1 C..-7 ~ Cc,nJe_, /7 \._:'(, f"' ,..... oZ o--, ' s/ ' . .J ~v -d)l-. r·L. J.r>-,. ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov Sub Reference Item Item Sheet-C7 1 Sheet-CB 1 2 3 TIR 1 2 3 4 Review Comments Replace ADA ramps details shown on plans with those marked in red. Grate Access to the vault shall be a minimum of 4% of vault bottom area, please show on plan II is unclear how will emergency overflow be drained if the riser structure is capped as called out on plan, alease explain and show on plan. The to~~ of inlet pipe into the vault shall be submerged at least 1-foot below the water quality design surface elevation, and a minimum of 3-feet shall be maintained between the inlet invert elevation and the top of the sediment storage elevation, this mean .tRe-mmTmum water quality depth shall~e:!,)jiease revise plans accordin,:ilv Please revise/provide detailed areas calculations for the pre and post developed conditions including frontage road imorovement areas. Please include in TIR actual computer printouts to show lime series data inputs, screen printouts are not acceotable for Micro-ima,:iin,:i Please check and revise the vault design calculations based on frontage improvements areas consideration and revise the vault dimensions shown in TIR to match those shown in construction plans. The vault design calculations shall show the 2-yr and 10- yr peak-flow matching in addition to duration matching as required for the Conservation Flow control design, olease revise calculations as needed Sheet 4 of 6 Back Consultant Response Check a~-/ ~:r-?Ue-/ !/))Tl:., 'f E--,,"Jl~.¢..,£} I !'J{)f7"'"J /' .a>A.,Je. 1 rrr5 /7 f:,j,:L-:.,E..:;~:;11./ L-/ LX)A,}t / COAJlt-/ £}{)/,/,£, cl_ t/',,.-7£:£) z '7 ( 1J-/?11,.I.L'S /f&?'fJtt! / fiyZ., 71/f__, r/lLf') tQ King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Sub Reference Item Item 5 6 7 8 General 1 2 3 4 5 6 7 Back Review Comments Consultant Response Check Please include in TIR the vault performance l?c .);t)£:.-/ (Comparison) Curve print out Please revise the Water Quality design calculations to .£X,?/J,[_ / include frontaae improvement areas. TESC design calculations shall include sediment trap z;o1Jt:_ / desian at the minimum, please provide. Please provide complete Bond Quantity calculations as £:tJA)e., / needed Per the short plat conditions of approval 6-8, please L /2;£-b!/'4£ /-ft:-CJIP/-1,Pt/-;"" provide SWPPS plan consistent with the 2005 King cl--County Surface Water Design Manual (KCSWDM) ./fr 77-/1":? Tlnt:-auidelines. Per the short plat conditions of approval 7-G, please l(C~ :;1J7/W,11'l-/J5 f4;#Jc~ i---IX provide sight-distance evaluation plan to show minimum ESD required on 116th Ave. SE, and provide separate G/tef,1,171,,4 ~t.f,,j)/"21 /J,17_2[) A) Illumination Plan for County review and annroval Per the short plat conditions of approval 7-L. please ' " ,_, ~--· o< show pedestrian tract on plan F.,/f-5,e,,nf-t'!/1 CJl1/ t.e:--,·r-7 Provide separate Landscape Plan for the Recreation LVtVe-t:,Jl/./£Y4£: -:s£~#/f7c-1 Tract and for the pedestrian tract as conditioned. -:;;.·' :.. •.,·_j;,;-- Please provide three sets of Structural Design Plans and --.._, I ' Calculations with soils report for the proposed RID vault a::_ #ff..,< . 0&61{7',/ {£f1/1!1:,.y£_ d-._ for Countv review Please provide three sets of Recreation Plans for l[l/t> L 7./L/~:,( -~ L',r'//l<--?'f77-, rz County review //.)i/y~~ Please provide five sets of separate Significant Trer /fJTl/££ S//#~ 5'i)f11£/ ift. .. <? Plans for County review ' ~,1::_,,e_ p.Jcr-:11~, 1 NILL--1,)ir #1-4 eA 7 U/'1/TI L-f/[J&--74&.R«:,//Jb /ff1f'/U~4J, Sheet 5 of 6 ff.,£_ --Jl'~-E,P!-fo,,J,{: G<J,<·f-1J/ T7f _Ba/CL ~J~-1'--,. ti King County Department of Development And Environmental Services 900 Oakesdale Avenue SW Renton, WA 98055-5212 206-296-6600 TIY 206-296-7217 www.metrokc.gov Sub Reference Item Item 8 9 10 11 Review Comments Please clearly indicate how condition of approval 6c for BMP is met, show all information on plans as needed to address this issue properl Please provide 3 sets of Pavement Design calculations for road required widening in 1161h Ave. SE based on actual soils conditions and CBR = 20 for County review Please show drainage BMPs' per the 2005 Surface Water Desi.9.n Manual Please submit 4 sets of revised plans and TIR along with all redline markup_s for further review. Sheet 6 of 6 Consultant Response /5 ,C;il -;Jfl:_ Back Check t>l ~ p( / PAVEMENT DESIGN ADDENDUM 116rn AVENUE WIDENING MALHI 7-LOT SHORT PLAT 18311 -I J6TII AVENUE SE RENTON, WASHINGTON GGNI Project No. G-2635 Prepared for Mr. Harry Bapla c/o Ms. Cheryl Girard GeoDatum, Inc. 1505 NW Mall Street Issaquah, WA 98027 September 25, 2008 By GEO Group Northwest, Inc. 13240 N.E. 20th Street, Suite 10 Bellevue, WA 98005 Phone: ( 425)649-8757 September 25, 2008 Mr. Harry Bapla c/o Ms. Cheryl Girard GeoDatum, Inc. 1505 NW Mall Street Issaquah, WA 98027 Subject: Pavement Design Addendum -116'" Avenue SE Widening Malhi 7-Lot Short Plat 18311 -1161• Avenue SE Renton, WA Tax Parcels: GeoDatum Project: KC Project File: KC Activity: 322305-9014 #05-294 #L06S0006 #L07SR043 Geotechnical Engineers, Geologists & Environmental Scientists G-2635 Ref; Report titled, "Geotechnical Engineering Study, Malhi Short Plat, 18311 -l l 6'h Avenue SE, Renton, WA," dated December 31, 2007, by GEO Group Northwest, Inc. Dear Mr. Bapla and Ms. Girard: At the request of King County, we have prepared a flexible pavement design for the widening the west shoulder of 116th Avenue SE for the Malhi Short Plat. 116th Ave SE is an arterial street and the design provided in the geotechnical report was for residential streets. Currently 116th A venue SE is a two-lane asphalt roadway with a gravel shoulder and ditch. The pavement design calculations are attached. We recommend the new pavement section consist of the following minimum section, provided the pavement section is placed on firm unyielding subgrade or on compacted structural fill that extends down to firm unyielding subgrade: Class Yi inch hot-mix asphalt (HMA) Class 3/4 or 1 inch HMA Crushed Surfacing 2 inches, over 4 inches, over 9 inches The street widening should be performed in accordance with Section 4.03 of the 2007 King County Road Design and Construction Standards. The soil subgrade should be dense and non-yielding and 13240 NE 20th Street, Suite 10 • Bellevue, Washington 98005 Phone 425/649-8757 • Fax 425/649-8758 September 25, 2007 Geotechnical Engineering Study Malhi 7-Lot Short Plat -Pavement Design G-2635 Page 2 be prepared in accordance with Section 2-06.3(2) of the 2008 WSDOT Standard Specification for Road, Bridge and Municipal Construction. Aggregates for ballast and crushed surfacing shall be in accordance with Section 9-03.9 of the 2008 WSDOT Standard Specification for Road, Bridge and Municipal Construction. Materials and lay-down procedures shall be in accordance with WSDOT/ APW A Standard Specifications and the requirements of Section 4.06 of the 2007 King County Road Design and Construction Standards. Construction control and inspection shall be in accordance with Chapter 9 of the 2007 King County Road Design and Construction Standards. GEO Group Northwest, Inc., should provide inspection and construction monitoring services during the project to verify the roadway widening is in accordance with the pavement design. Please call if you have any questions. Sincerely, GEO GROUP NORTHWEST, INC. Wade J. Lassey Project Engineering Geologist ~thzi0-@~1 William Chang, P.E. Principal Attachment: Flexible Pavement Design Calculations GEO Group Northwest, Inc. Malhi 7-Lot Short Plat 18311 -116th Avenue SE Flexible Asphalt Pavement Design Location: Widening a portion of the west side of 116th Avenue SE, North of SE 192nd Street, South Bound Lane Traffic Count From King County (attached) 09/25/2008 Page 1 of __ Reviewed Traffic Counts for 116th Ave SE -South of Petrovitsky Road & North of SE 192nd St Project site is located approximately half way between Petrovitsky & SE 192nd St. Traffic Count South of Petrovitsky (116th Ave SES-SB) Latest Available Average Daily Traffic Volume: Year 2005 = 3902 vehicles/day Traffic Volume Range from 1995 to 2005: Low of 3530 vehicles (projected in 1997) to a maximum of 4956 vehicles (2004). Historic Growth: The traffic count volume increase from 3380 to 4956 (1997 to 2004) is equal to an 11.9% annual growth rate (3530 / 4956 / 6 • 100). However, the traffic volume over the 10-year period from 1995 to 2005 ranged from 4040 (projected 1995) to 3902 (2005) which is equal to a decrease of 10% in the annual growth rate (4040 / 3902 / 10 • 100). The traffic count over the last three years, 2003 to 2005 averaged 4515 vehicles/day. Traffic Count North of SE 192nd Street (116th Ave SEN-SB) Latest Available Average Daily Traffic Volume: Year 2005 = 3444 vehicles/day Traffic Volume Range from 1995 to 2005: Low of 2896 vehicles (1996) to a maximum of 4110 vehicles (projected in 1999). Historic Growth: Traffic count volume increased from 2896 to 4110 (1996 to 1999) then leveled off between 3365 to 3791 counts after 1999 with the last three years, 2003 to 2005, averaging 3600 vehicles/day, and generally no growth. Estimate Annual Truck ESALs: Use the higher average count recorded south of Petrovitsky Road from 2003 to 2005 = 4515 vehicles/day. Assume 10% truck traffic= (4515) (10%) = 451 trucks/day Assume 65% singles (293 singles/day) and 35% doubles (158 doubles/day) Annual ESALs = vehicle cUday x lane distribution factor x days/yr x ESALs/vehicle Singles: (293) (1.0) (365) (0.4) = 42,778 Doubles: (158) (1.0) (365) (1.0) = 57,670 Total Annual Truck ESALs 42,778 + 57670 = 100,448 ESALs/year Estimate Design ESALs for 20 year Design Life: Assume a 2% annual growth rate for the 20 year design life 100,500 [ Determine MR: (1 + 0.02)20 -1 0.02 = 2,442,000 Design ESALs Subgrade soils are glacial till, consisting of sandy silt with gravel, non-plastic uses Classification = ML Default MR value= 10,000 psi, Class C, per King County Design Manual 4.05 Determine Pavement Design Section: The pavement design section was calculated with a Web based utility which uses the 1993 AASHTO emperical equation for flexible pavements at http://traininq. ce. washington. edu/wsdoUModules/06 structural design/06-4 body.him Malhi 7-Lot Short Plat 18311 -116th Avenue SE Flexible Asphalt Pavement Design Program Outputs: 1. Calculation Parameters Standard Normal Deviate (ZR): t,. PSI: Design Structural Number (SN): 2. Layer Depths (nearest 1/2 inch) Hot Mix Asphalt: Crushed Surfacing Base: -1 037 1.5 3.745 6" 9" 09/25/2008 Page 1 of __ 1993 AASHTO Empirical Equation for Flexible Pavements ____ _, Equation Solver .__i....:.V.::a:.:ri.::a.::b:.:le=-=D..=e.::sc.::r:..:ii::.P.::ti.::o:.:n.::s..=a:.:.n:.:d:....T:.:Y!.!Pc.:i.::c.::a:.:I .:.V.::a:.:lu:.:e:.:s:...L-LP:....r:..:e:.:c:.:a:.:u:.:t:.:io:.:.n:.:s:..L _____ _ Type in data in the grey boxes and click the calculate button to see the output. To make additional calculations, change the desired input data and click the calculate button again. Click on the text descriptions of the input or output variables for more information. INPUT 1. Loading Total Design ESALs (W10): j 21::.zsoooool 2. Reliability Reliability Level in percent (R): I BS , ,.. , Combined Standard Error (So): k, ;~~Pl'~I 3. Servicabilty Initial Servicability Index (p,): !r ·. "_4.51 Terminal Servicability Index (p,): j\c .·, 31 4. Layer Parameters Number of Base Layers: M "" I a m MR Min. Depth 1-w"'· ""hi I' ,, ... ', ·1 Surface,,,1,;.~. !l'f"' 1.0 N/A,1~;J!,,,D_: Base 1 j: .· O.tljf "'--'-;"'":i"";1,j ljt;:2§~0ol ~~"0''ol Subgrade NIA NIA f:':'*'ti!oool NIA ·c;,--w - ..6 OUTPUT 1. Calculation Parameters Standard Normal Deviate (zR):--1.D?.1 8PSI:-1.!> Design Structural Number (SN): -;, ,1 'f S' 2. Layer Depths (to the nearest 1/2 inch) Surface: -I,, Base1: -"I Total SN based on layer depths: 3.81 Comments 1993 AASHTO Empirical Equation for Flexible Pavements ----~ Equation Solver 1 C Variable Descriptions and Typical Values) r Precautions) Solution Details Close. Step 1: Surface (HMA) Layer Calculations Calculate SN* from the 1993 AASHTO empirical equation using the MR of Base 1 instead of the subgrade M •. This determines the amount of support the surface HMA layer needs to provide in order for the base 1 layer to perform adequately. ·Q--w - ..6 MR of Base 1 = 28000 psi SN* = 2.495 SN* 2.495 D* (rounded to nearest 1/2 inch) = --= --= ao 0.44 Minimum specified depth (Dmoo) = The greater of D* and Dm,, = D,ucr = o inches 6 inches SN contribution of D,ucr = D,ucr x a, = SN,ucr = 2.64 6 inches Calculated Surface Layer Depth = 6inches NEXT STEP .. see the output. To make he calculate button again. r more information. OUTPUT arameters rmal Deviate (z•): - i'.PSl:- ral Number (SN): - (to the nearest 1/2 inch) Surface: - Base1: - n layer depths: 3.81 1993 AASHTO Empirical Equation for Flexible Pavements ____ __,( Equation Solver l f Variable Descriptions and Typical Values] ( Precautions l Solution Details Step 2: Base 1 Layer Calculations Close. see the output. To make he calculate button again. Calculate SN from the 1993 AASHTO empirical equation using the MR of the subgrade. This determines the amount of support the surface and base l layers need to provide in order for the pavement to perform adequately. MR of Subgrade = 10000 psi SN = 3.745 SNswf from Step 1 = 2.64 SNbase 1 = SN -SNsorr = 1.105 SNbase 1 D* (rounded to nearest 1/2 inch) = ---a, Minimum specified depth (Dm;,) = The greater of D* and Dm;o = Dbase 1 = 1.105 0.13 o inches 9 inches 9 inches SN contribution of D,a,e 1 = Dbase 1 x a, = SN base 1 = 1. 17 Calculated Base 1 Layer Depth = 9 inches ... PREVIOUS STEP CLOSE THIS WINDOW 6--VI -- r more information. OUTPUT arameters rmal Deviate (ZR): - L'IPSl:- ral Number (SN): - (to the nearest 1/2 inch) Surface: - Base1: - n layer depths: 3.81 1993 AASHTO Empirical Equation for Flexible Pavements ( Equation Solver) r Variable Descriptions and Typical Values) (Precautions) Click on a blue term in the equation to see its description and typical values log(Wrn) = ZR x So + 9.361og(SN + 1) -0.20 + ( i'.PSI ) log 4.2 -1.5 1094 + 2.321og(MR) -8.07 0.40 + (SN + l)s.19 1993 AASHTO Empirical Equation for Flexible Pavements C Equation Solver 1 r Variable Descriptions and Typical Values 1 r Precautions)~------ The 1993 AASHTO empirical equation for flexible pavements is, as the name suggests, an empirical equation. As such, it is based on experimental results and experience; there is no direct physical relation between its variables and the outcome. Therefore, it may not be prudent to use this equation to describe phenomena that occur outside the range of the original data used to develop the relationship. Other specific precautions are: Use the most accurate input data available. Do not manipulate, inflate or use conservative values to compensate for variability or to add a factor of safety. The values of ZR and So are intended to compensate for input variability. Subgrade support (MR) varies with the environment. Typically, MR is characterized as seasonal because a subgrade's support is heaviliy dependent upon its moisture content and whether or not it is frozen. This is why the design MR used in the equation is a weighted average of the calculated seasonal MR values. The calculated combination is only one of many possible layer thickness combinations. Once the SN is calculated it can be divided up between the constituent layers in an almost infinite number of ways. Be careful when using layer drainage coefficients other than 1.0. A drainage coefficient is basically a way of making a specific layer thicker. If a fundamental drainage problem is suspected, thicker layers may only be of marginal benefit -a better solution is to address the actual drainage problem by using very dense layers (to minimize water infiltration) or designing a drainage system. Choose prudent minimum layer thicknesses. Although the equation will provide an answer for any minimum layer thickness, thin layers (e.g., less than about 1 inch for HMA and 2 inches for base/subbase course) are not practical to construct. In many instances, minium layer thicknesses should be even greater than 1 and 2 inches respectively. Traffic Count Report -King County http:/ lwww.metrokc.gov/kcdot/roads/traffi c/ count/resul t2 005 .asp'! i ls .. l of 1 King County 1995-2005 Historical Counts by Location Average Daily Traffic Volumes ADT File Street Leg 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 Number --------------------------------------·~----------··--~--------------. 3060 PETROVITSKY RD E 25596 25835 28683 24542 28239 26919 27809 27063 27850' 27436 3060 PETROVITSKY RD E-EB 12164 12207 13987 11528 12552 12723 13353 12423 13900* 13694 3060 PETROVITSKY RD E-WB 13432 13628 14696 13014 15687 14196 14456 14640 13950' 13742 3060 116AVESE N 15135 17041 15561 15490 14691 15255 14335 15314 14140' 13921 3060 116AVESE N-NB 7510 8532 7837 7631 7191 7732 7235 7838 7120' 7010 3060 116AVESE N-SB 7625 8509 7724 7859 7500 7523 7100 7476 7020' 6911 3060 ll6AVESE s 7546 9484 8930 7270 7300 7610 7150 8252 6290' 6194 3060 ll6AVE SE S..NB 3644 4528 4243 3400 3337 3505 3327 3638 2760* 2719 3060 116AVESE S..SB 3902 4956 4687 3870 3963 4105 3823 4614 3530' 3475 3060 PETROVITSKY RD w 23021 32025 30867 26619 30070 29281 30552 27845 26370' 25979 3060 PETROVITSKY RD W-EB 11415 15811 15205 12692 14787 14509 15428 13579 15130* 14902 3060 PETROVITSKY RD W-WB 11606 16214 15662 13927 15283 14772 15124 14266 11240' 11077 * = Projected Count The leg code indicates the direction and location of the traffic count relative to the intersection; for exumple: N-NB is the leg north of the intersection and the flow is in the north-bound direction. For questions regarding this information please call (206)296-6596 1995 28060' 14430' 13630' 15180' 7330' 7850' 7220* 3180* 4040* 29570* 14810* 14760' :::, ..... -+L 6{:' 'Pe...+..-o..;.L+.,;. ~ 12..,,.,,...J ( ~fLC.Arr 1:'.ec.__,J~ C'S~ r1 ~ ~s1) ~4 'bu-! ~e_ 09/25/2008 9: 13 AM Traffic Count Report -King County http://www.metrokc.gov/kc dot/roads/traffic/ co unt/result2 005 .asp'! i ls .. 1 of 1 King County 1995-2005 Historical Counts by Location Average Daily Traffic Volumes ADT File Street Leg 2005 2004 2003 2002 2001 20110 1999 1998 1997 1996 Number 3066 SE 192 ST E 11237 10776 10527 11269 10822 11406 12130' 11963 10660' 10499 3066 SE 192 ST E-EB 5510 5253 5157 5096 5459 5882 6230' 6152 5480' 5394 3066 SE 192 ST E-WB 5727 5523 5370 6173 5363 5524 5890' 5811 5180' 5105 3066 116AVESE N 6443 6285 6870 6215 6709 6228 6650' 6563 5050* 4974 3066 ll6AVESE N-NB 2999 2904 3079 2779 3007 2863 2540' 2505 2110' 2078 3066 116AVESE N-SB 3444 3381 3791 3436 3702 3365 4110' 4058 2940' 2896 3066 116AVESE s 3524 3136 3178 2629 2767 2327 2400' 2373 1840' 1812 3066 116AVESE S-NB 1662 1517 1666 1448 1475 1239 1190' 1179 920' 903 3066 116AVESE S-SB 1862 1619 1512 1181 1292 1088 1210' 1194 920' 909 3066 SE 192 ST w 10475 10431 10558 10739 10808 11298 11760' 11602 10460' 10302 3066 SE 192ST IV-EB 4949 4846 4683 4918 4986 5217 5580' 5507 4840' 4764 3066 SE 192ST IV-IVB 5526 5585 5875 5821 5822 6081 6180' 6095 5620' 5538 * =c Projected Count The leg code indicates the direction and location of the traffic count relative to the intersection; for example: N-NB is the leg north of the intersection and the flow is in the north-bound direction. For questions regarding this information please call (206)296-6596 1995 10530' 5320' 5210' 5670* 2290' 3380' 1890' 1040' 850* 9900' 4330' 5570' 09/25/2008 8:30 AM ' (c::i') 11/l/J cc ?:=1 = = c--, = O'} l1lllJ '.'-.J @ CL LL.J 11/l/J V) @s Cl) ui ci ci c.j ~ l 505 NW MALL ST, ISSAQUAH, WA 98027 PH: 14251 837-9083 Fx: (425) 837-0583 CONTACTLIS@GEO DATUM .COM Sight Distance Evaluation King County, Washington For: Malhi 7-Lot Short Plat 183111161hAveSE Renton, WA KC Project #L06S0006 GeoDatum Project No. 2005-294 Revisions: Date Description Prepared by: Cheryl L. Girard, PE, MALHI 7-LDT SHOAT PLAT SIGHT DISTANCE EVALUATION 9/28/2008 PAGE 1 OF 4 , l'I GeoDatum '"' r...i'"''" '"''''"'·''''"' Introduction This sight distance evaluation was performed at the request of King County DDES in conformance with short plat condition of approval 7-G. On Friday September 26, 2008 GeoDatum, Inc performed a sight distance evaluation in the field addressing requirements set forth in Section 2 of the 1993 King County Road Standards. Sight Distance Evaluation Please refer to the map page and photographs. The posted speed limit on 1161h Ave SE is 35 mph. The design speed for ESD and SSD evaluation will therefore be 40 mph. Existing street (1161 h Ave SE) to which proposed SE 183"' Court connects is sloped at less than 1 % from south towards north. No adjustment factor for upgrade or downgrade will be applied to the required SSD or ESD listed in Table 2.1 of the 1993 KCRS. Per Table 2.1 of 1993 KCRS: Required SSD for offsite vehicle travelling north on 1161h Ave SE is 325 feet. Required SSD for offsite vehicle travelling south on 1161h Ave SE is 325 feet Required ESD for onsite vehicle turning onto 1161h Ave SE is 555 feet Target height for SSD is 0.5 feet Driver eye height SSD and ESD is 3.5 feet Vehicle height for ESD is 4.25 feet Available SSD for southbound vehicle on 1161 h Ave SE exceeds 700 feet Available SSD for northbound vehicle on 1161h Ave SE exceeds 1,000 feet Available ESD from site north exceeds 700 feet Available ESD from site south exceeds 1,000 feet Conclusions Available SSD and ESD for this project meets or exceeds 1993 KCRS. MALHI 7-LDT SHORT PLAT SIGHT DISTANCE EVALUATION 9/28/2008 PAGE 2 OF 4 r I :. MALHI ?-LOT SH O RT P LAT SIGHT D ISTANCE E VALUATION 9 /28/2008 GeoDatum In, Looking south on 1161h Ave SE from project site entry/exit Clear sight distance exceeds 1,000 feet to elementary schoo l and church entry drives. Looking north on 1161h Ave SE from project site enrty/exit. Clear sight distance exceeds 700 feet. P AGE 3 OJ' 4 North MALH I 7 ·L OT SHOAT P L AT S I GHT DISTANCE E VALUATI ON 9 /28/2008 Ge0 Datum 1"' Unob structed sight distance exceed s 700' Project Site Un obstructed sight distance exceeds 1,000 ' Sight Distance Evaluation Malhi 7-Lot Short Plat P AGE 4 OF 4 2.05 Horizontal Curvature and Sight Distance Design Values A. The design values shown in Tables 2.1 and 2.2 are minimum values necessary to meet the requirements of Sections 2.02, 2.03 and 2.04 for a selected design speed and road classification. A maximum of 8 percent superelevation may be used, upon approval of the Engineer, for design of improvements to existing arterials, as necessary, to meet terrain and right-of-way conditions. Superelevation run-off lengths on arterials, rural residential and commercial access streets shall be calculated in accordance with the WSDOT Design Manual. B. Superelevation is not required in the design of horizontal curves on urban residential access streets; however, horizontal curves must be designed based on design speed and selected cross section as indicated in Table 2.2. Table 2.2 is based on AASHTO "Low Speed Urban Streets" design methodology. Superelevation may be used on urban residential streets as necessary to meet terrain and right-of-way conditions. Design Speed (mph) Table 2.1 Arterial Roads. Rural Residential And Commercial Access Streets Design Values 30 35 40 45 50 55 60 Horizontal Curvature for 6 percent 273 380 509 656 849 1,061 1,348 Superelevation, Radius (Ft.\ Horizontal Curvature for 8 percent (maximum 250 350 465 600 760 960 1,200 allowable on arterials) Superelevation, Radius (Ft.) (requires approval of the Engineer) Stopping Sight Distance (Ft.) 200 250 325 400 475 550 650 Entering Sight Distance (Ft.) 430 490 555 620 685 750 810 Passing Sight Distance (Ft.) for a 1,100 1,300 1,500 1,650 1,800 1,950 2,100 2-Lane Road 15 1 505 NW MALL ST, ISSAQUAH, WA 98027 PH: (425) 837-8083 Fx: (425) 837-0583 CONTACTUS@GEODATUM, COM :JJ:l!'· @, ~ @s cri uj ci ci cj ~ Sight Distance Evaluation King County, Washington For: Malhi 7-Lot Short Plat 18311 1161h Ave SE Renton, WA KC Project #L06S0006 GeoDatum Project No. 2005-294 Prepared by: Cheryl L. Girard, PE, MALHI 7·LOT SHOAT PLAT SIGHT DISTANCE EVALUATION 9/28/2008 Revisions: Date Descript,on PAGE 1 OF 4 Introduction This sight distance evaluation was performed at the request of King County ODES in conformance with short plat condition of approval 7-G. On Friday September 26, 2008 GeoDatum, Inc performed a sight distance evaluation in the field addressing requirements set forth in Section 2 of the 1993 King County Road Standards. Sight Distance Evaluation Please refer to the map page and photographs. The posted speed limit on 1161 h Ave SE is 35 mph. The design speed for ESD and SSD evaluation will therefore be 40 mph. Existing street (1161" Ave SE) to which proposed SE 183"' Court connects is sloped at less than 1 % from south towards north. No adjustment factor for upgrade or downgrade will be applied to the required SSD or ESD listed in Table 2.1 of the 1993 KCRS. Per Table 2.1 of 1993 KCRS: Required SSD for offsite vehicle travelling north on 116th Ave SE is 325 feet. Required SSD for offsite vehicle travelling south on 1161h Ave SE is 325 feet Required ESD for onsite vehicle turning onto 1161h Ave SE is 555 feet Target height for SSD is 0.5 feet Driver eye height SSD and ESD is 3.5 feet Vehicle height for ESD is 4.25 feet Available SSD for southbound vehicle on 1161h Ave SE exceeds 700 feet Available SSD for northbound vehicle on 1161h Ave SE exceeds 1,000 feet Available ESD from site north exceeds 700 feet Available ESD from site south exceeds 1,000 feet Conclusions Available SSD and ESD for this project meets or exceeds 1993 KCRS. MALHI 7·LOT SHORT PLAT SIGHT DISTANCE EVALUATION 9/28/2008 PA13E 2 OF 4 MAL HI 7 -LOT S HO R T PLAT SIGHT D IST A N CE E V ALUAT ION 9 /28/2008 Geo Datum 1"' Looking south on 1161h Ave SE from project site entry/exit Clear sight distance exceeds 1,000 feet to elementary school and church entry drives. Looking north on 1161h Ave SE from project site enrty/exit. Clear sight distance exceeds 700 feet. P AGE 3 O F" 4 North MALHI 7 ·LOT SHORT PL A T S IGHT DI S TANCE EVALUATI ON 9 /2 8 /2008 Geo Datum In< ~ U ~\/ f Y ·VI l ~ 111 {.Tu, • 1 Unobstructed sight distance exceeds 700' Project Site Unobstructed sight distance exceeds 1,000' Sight Distance Evaluation Malhi 7-Lot Short Plat PAGE 4 OF 4 2.05 Horizontal Curvature and Sight Distance Design Values A. The design values shown in Tables 2.1 and 2.2 are minimum values necessary to meet the requirements of Sections 2.02, 2.03 and 2.04 for a selected design speed and road classification. A maximum of 8 percent superelevation may be used, upon approval of the Engineer, for design of improvements to existing arterials, as necessary, to meet terrain and right-of-way conditions. Superelevation run-off lengths on arterials, rural residential and commercial access streets shall be calculated in accordance with the WSDOT Design Manual. B. Superelevation is not required in the design of horizontal curves on urban residential access streets; however, horizontal curves must be designed based on design speed and selected cross section as indicated in Table 2.2. Table 2.2 is based on AASHTO "Low Speed Urban Streets" design methodology. Superelevation may be used on urban residential streets as necessary to meet terrain and right-of-way conditions. Design Speed (mph) Table 2.1 Arterial Roads. Rural Residential And Commercial Access Streets Design Values 30 35 40 45 50 55 60 Horizontal Curvature for 6 percent 273 380 509 656 849 1,061 1,348 Suoerelevation, Radius (Ft.) Horizontal Curvature for 8 percent (maximum 250 350 465 600 760 960 1,200 allowable on arterials) Superelevation, Radius (Ft.) (requires approval of the Engineer) Stopping Sight Distance (Ft.) 200 250 325 400 475 550 650 Entering Sight Distance (Ft.) 430 490 555 620 685 750 810 Passing Sight Distance (Ft.) for a 1,100 1,300 1,500 2-Lane Road 1,650 1,800 1,950 2,100 15 • l 505 NW MALL ST, l55AtyUAH, WA 98027 PH; {425} 837-8083 Fx; (425) 837-0583 CONTACTUS@GEO DATUM.COM Sight Distance Evaluation King County, Washington For: Malhi 7-Lot Short Plat 18311 1161h Ave SE Renton, WA KC Project #L06S0006 GeoDatum Project No. 2005-294 Prepared by: Cheryl L. Girard, PE, MALHI 7-LOT SHORT PLAT SIGHT DISTANCE EVALUATION 9/28/2008 Revisions: Date Description PAGE 1 OF 4 IIIGeoDatum,,,, r...li"'''"' ,.,. ,.,,,,.,.,,, Introduction This sight distance evaluation was performed at the request of King County DDES in conformance with short plat condition of approval 7-G. On Friday September 26, 2008 GeoDatum, Inc performed a sight distance evaluation in the field addressing requirements set forth in Section 2 of the 1993 King County Road Standards. Sight Distance Evaluation Please refer to the map page and photographs. The posted speed limit on 1161h Ave SE is 35 mph. The design speed for ESD and SSD evaluation will therefore be 40 mph. Existing street (1161h Ave SE) to which proposed SE 183'• Court connects is sloped at less than 1 % from south towards north. No adjustment factor for upgrade or downgrade will be applied to the required SSD or ESD listed in Table 2.1 of the 1993 KCRS. Per Table 2.1 of 1993 KCRS: Required SSD for offsite vehicle travelling north on 1161h Ave SE is 325 feet. Required SSD for offsite vehicle travelling south on 1161h Ave SE is 325 feet Required ESD for onsite vehicle turning onto 1161h Ave SE is 555 feet Target height for SSD is 0.5 feet Driver eye height SSD and ESD is 3.5 feet Vehicle height for ESD is 4.25 feet Available SSD for southbound vehicle on 116th Ave SE exceeds 700 feet Available SSD for northbound vehicle on 1161h Ave SE exceeds 1,000 feet Available ESD from site north exceeds 700 feet Available ESD from site south exceeds 1,000 feet Conclusions Available SSD and ESD for this project meets or exceeds 1993 KCRS. MALHI 7-LOT SHORT PLAT SIGHT DISTANCE EVALUATION 9/28/ZCCB PAGE 2 OF 4 ' I MALHI ?·LOT SHORT PLAT SIGHT DISTANCE EVALUATION 9/28/2DD8 l'IGeoDatum ,,. r..l""'"' ,,, ,.,u,r,,., Looking south on 1161h Ave SE from project site entry/exit Clear sight distance exceeds 1,000 feet to elementary school and church entry drives. Looking north on I 16th Ave SE from project site enrty/exit. Clear sight distance exceeds 700 feet. PAGE 3 OF 4 North MALHI 7·LOT SHORT F'LAT 5113HT DISTANCE EVALUATION 9/28/2008 l'IIGeoDatum,,, fJllfl IC '"d :a' ;re.,r-,,H Unobstructed sight distance exceeds 700' Project Site Unobstructed sight distance exceeds 1,000' Sight Distance Evaluation Malhi 7-Lot Short Plat PAGE 4 OF" 4 2.05 Horizontal Curvature and Sight Distance Design Values A. The design values shown in Tables 2.1 and 2.2 are minimum values necessary to meet the requirements of Sections 2.02, 2.03 and 2.04 for a selected design speed and road classification. A maximum of 8 percent superelevation may be used, upon approval of the Engineer, for design of improvements to existing arterials, as necessary, to meet terrain and right-of-way conditions. Superelevation run-off lengths on arterials, rural residential and commercial access streets shall be calculated in accordance with the WSDOT Design Manual. B. Superelevation is not required in the design of horizontal curves on urban residential access streets; however, horizontal curves must be designed based on design speed and selected cross section as indicated in Table 2.2. Table 2.2 is based on AASHTO "Low Speed Urban Streets" design methopology. Superelevation may be used on urban residential streets as necessary to meet terrain and right-of-way conditions. Design Speed (mph) Table 2.1 Arterial Roads, Rural Residential And Commercial Access Streets Design Values 30 35 40 45 50 55 60 Horizontal Curvature for 6 percent 273 380 509 656 849 1,061 1,348 Suoerelevation, Radius (Ft.l Horizontal Curvature for 8 percent (maximum 250 350 465 600 760 960 1,200 allowable on arterials) Superelevation, Radius (Ft.) (requires approval of the Engineer) Stopping Sight Distance (Ft.) 200 250 325 400 475 550 650 Entering Sight Distance (Ft.) 430 490 555 620 685 750 810 Passing Sight Distance (Ft.) for a 1,100 1,300 1,500 1,650 1,800 1,950 2,100 2-Lane Road 15 1 505 NW MALL ST, ISSAQUAH, WA 98027 PH: (425) 837-8083 FX: (425) 937-0583 CONTACTUS@GEO DATUM ,COM Sight Distance Evaluation King County, Washington For: Malhi 7-Lot Short Plat 18311 1161h Ave SE Renton, WA KC Project #L06S0006 GeoDatum Project No. 2005-294 _ex_P_lH_CS_' ---=tzi1-h+/_._l'~'l __ . -~_] Prepared by: Cheryl L. Girard, PE, MALHI 7-LOT SHORT PLAT SIGHT DISTANCE EVALUATION 9/28/2008 Revisions: Date Description PAGE 1 OF 4 l'IIGeoDatum,," Y···";, .... ,.,,, ...... Introduction This sight distance evaluation was performed at the request of King County ODES in conformance with short plat condition of approval 7-G. On Friday September 26, 2008 GeoDatum, Inc performed a sight distance evaluation in the field addressing requirements set forth in Section 2 of the 1993 King County Road Standards. Sight Distance Evaluation Please refer to the map page and photographs. The posted speed limit on 1161h Ave SE is 35 mph. The design speed for ESD and SSD evaluation will therefore be 40 mph. Existing street (116 1 h Ave SE) to which proposed SE 183rd Court connects is sloped at less than 1 % from south towards north. No adjustment factor for upgrade or downgrade will be applied to the required SSD or ESD listed in Table 2.1 of the 1993 KCRS. Per Table 2.1 of 1993 KCRS: Required SSD for offsite vehicle travelling north on 1161h Ave SE is 325 feet. Required SSD for offsite vehicle travelling south on 1161" Ave SE is 325 feet Required ESD for onsite vehicle turning onto 1161" Ave SE is 555 feet Target height for SSD is 0.5 feet Driver eye height SSD and ESD is 3.5 feet Vehicle height for ESD is 4.25 feet Available SSD for southbound vehicle on 1161h Ave SE exceeds 700 feet Available SSD for northbound vehicle on 1161h Ave SE exceeds 1,000 feet Available ESD from site north exceeds 700 feet Available ESD from site south exceeds 1,000 feet Conclusions Available SSD and ESD for this project meets or exceeds 1993 KCRS. MALHI 7-LOT SHORT PLAT SIGHT DISTANCE EVALUATION 9/26/2008 PAGE 2 OF" 4 I MALHI 7-LOT SHORT PLAT SIGHT DISTANCE EVALUATION 9/26/2008 Ill GeoDatum '"' fJiil 5!/0'<f• 'IC L \H,,(l,>•< Looking south on I 16th Ave SE from project site entry/exit Clear sight distance exceeds 1,000 feet to elementary school and church entry drives. Looking north on I 16th Ave SE from project site enrty/exit. Clear sight distance exceeds 700 feet. PAGE 3 OF 4 North MALHI 7-LOT SHORT F'LAT SIGHT DISTANCE EVALUATION 9/28/2008 IIIGeoDatum,oc Y,C·<•,c,,.,_,,,1L'e0, Unobstructed sight distance exceeds 700' Project Site Unobstructed sight distance exceeds 1,000' Sight Distance Evaluation Malhi 7-Lot Short Plat PAC3E 4 OF 4 2.05 Horizontal Curvature and Sight Distance Design Values A. The design values shown in Tables 2.1 and 2.2 are minimum values necessary to meet the requirements of Sections 2.02, 2.03 and 2.04 for a selected design speed and road classification. A maximum of 8 percent superelevation may be used, upon approval of the Engineer, for design of improvements to existing arterials, as necessary, to meet terrain and right-of-way conditions. Superelevation run-off lengths on arterials, rural residential and commercial access streets shall be calculated in accordance with the WSDOT Design Manual. B. Superelevation is not required in the design of horizontal curves on urban residential access streets; however, horizontal curves must be designed based on design speed and selected cross section as indicated in Table 2.2. Table 2.2 is based on AASHTO "Low Speed Urban Streets" design methodology. Superelevation may be used on urban residential streets as necessary to meet terrain and right-of-way conditions. Design Speed (mph) Table 2.1 Arterial Roads, Rural Residential And Commercial Access Streets Design Values 30 35 40 45 50 55 60 Horizontal Curvature for 6 percent 273 380 509 656 849 1,061 1,348 Superelevation, Radius (Ft.l Horizontal Curvature for 8 percent (maximum 250 350 465 600 760 960 1,200 allowable on arterials) Superelevation, Radius (Ft.) (requires approval of the Engineer) Stopping Sight Distance (Ft.) 200 250 325 400 475 550 650 Entering Sight Distance (Ft.) 430 490 555 620 685 750 810 Passing Sight Distance (Ft.) for a 1,100 1,300 1,500 1,650 1,800 1,950 2,100 2-Lane Road 15 soc . . Dye, Pete From: Sent: To: Subject: Haidar, Mazen Wednesday, April 29, 2009 10:43 AM 'Mark X. Plog, PE, PLS' RE: Malhi Short Plat (L07SR043) Attachments: QC Review Comments .doc Mark, Page I of 4 Attached herewith are our final Quality Control comments that should be addressed before approving the engineering review for Malhi Short Plat, please make sure these comments are addressed as requested and submit three sets of paper plans for approval. Please let me know if you have any questions, thanks. Mazen Haidar, P.E. Engineer II Department of Development and Environmental Services 900 Oakesdale Av1nue SW Renton, WA 9805~ -1219 rna;z~n ,ti.~ld~r.@~j ~_g_g_o1,1.111Y. 9QY P 206 2913 7131 F206.296 6613 Office Hours M -Th 6:00 am -4:30 pm.~ From: Mark X. Plog, PE, PLS [mailto:mxp@geodatum.com] Sent: Thursday, April 02, 2009 4:41 PM To: Haidar, Mazen Subject: RE:tMalhi Short Plat (L07SR043) Mazen: Please see my responses below in green © Thanks, Mark From: Haidar, Mazen [mailto:Mazen.Haidar@kingcounty.gov] Sent: Thursday, April 02, 2009 10:41 AM To: Mark X. Plog, PE, PLS Subject: RE: Malhi Short Plat (L07SR043) 08/25/2009 Cover Sheet, Please correct sheet C2 title under Sheet Index to match the actual title of the sheet (Horizontal Control Plan). Sheet C2 This sheet shall be stamped and signed the J?roject Surveyor. On this sheet show notes for available entering sight distance along 116 per condition of approval 7-G Sheet C6 I. At the request of the Land Use Inspection Section CB # 2 cover shall be round solid locking lid per 2007 KCRDS, Section 7.05-M and Figure 7-022. Please note figure 7- 015 is allowed for existing catch basins that will no longer collect surface runoff. 2. The proposed dispersal trench shown on lot I appears to be 21 feet in length, whereas the TIR makes reference to 41 feet of dispersal trench. The plans should show multiple dispersal trenches on several lots and with yard drains to convey dispersed flows to the vault 3. Please show the following notes on the plans: a. The final short plat shall include the recording of applicable documents for implementation of storm water BMP's as described in Appendix C of the King County drainage manual for Basic Dispersion, Page C48-52. A declaration of covenant and grant of easement with the required text of instructions shall be recorded with the short plat for each designated lot with dispersion requirements. b. The following note shall be shown on the final recorded short plat: "Single family residences and other improvements constructed on the lots created by this subdivision must implement the flow control best management practices stipulated in the drainage plan declaration of covenants and grant of easement recorded for each lot. Compliance with this stipulation must be addressed in the small project drainage plan submitted for drainage review when application is made for a single family residential building permit for the lot." Sheet C9 Please add railing along the edges of the deep and sump portions of the vault as shown in section A. I Malhi Short Plat -Engineering File ' Status -Engineering review nearing completion. Attached final review comments sent to applicant 4/29/09. Structural review pending ' Tree retention review pending l ti King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 206-296-6600 TTY 206-296-7217 www.metrokc.gov July 30, 2007 Harry Bapla 9501 S. 207'h Place Kent, WA 98031 RE: Permit Fee Estimate Project: Malhi Short Plat File Number: L07SR043 Dear Applicant: Thank you for submitting the engineering plans for site development of the Malhi short plat. To implement the engineering review process, our office will use a new procedure for managing the permit application to provide applicants with an enhanced level of customer service. A project manager will be assigned to your project to provide a fee estimate for the anticipated scope of review and will also monitor and manage the permit application throughout the review process. Your application for engineering review was received by our office on July 12, 2007 and will be processed using the Project Manager Program. The enclosed information provides a summary of the fee estimate for the anticipated work disciplines and also discusses the submittal process and disclaimers which may affect the final permit fees. The fee estimate includes the scope of work for engineering plan review only and does not evaluate other final plat requirements such as construction inspection and review of plat recording documents. During our initial screening process of the engineering plans, it was determined that numerous design requirements were not evaluated in the initial engineering submittal. The design items identified during the screening process are listed as disclaimers on the attached fee estimate form. Due to the missing information, the fee summary is a rough estimate and is subject to modification based upon the disclaimers noted in the fee estimate form. To provide an efficient process for review of the engineering plans, it is recommended that the missing design information be addressed in your next submittal with the required fee payment. Harry Bapla July 30, 2007 Page2 In addition to engineering design documents, our Department must also review and approve the recreation space plan as required by short plat condition 14. Please be aware that the recreation plan must be submitted to our planning section as a separate permit application with fee payment. For further information regarding the submittal process for recreation plans, please contact Kim Claussen at 206-296-7167. To begin the review process, please submit the enclosed signed budget agreement with the required fee payment. All fee payments shall be made to the cashier in the DDES permit center using activity number L07SR043. All other documents should be delivered to my attention in the Land Use Services Division. If you have any questions regarding the permit fees or other aspects of the engineering review process, please contact the project manager, Pete Dye via email pete.dye@metrokc.gov or by telephone at 206-296-7185. Sincerely, n Peter Dye, P .E. Senior Engineer Enclosure cc: Mark Plog • @) King County Land Use Services Division Permit Fee Estimate Pre-app Estimate Number: L07SR043 Date: 07 /30/07 Permit Title: Malhi Short Plat Permit Type: SITEREVS -Engineering Plan Based on permit information submitted by the applicant, the Department of Development and Environmental Services (DDES) has determined the amount of review fees for the subject application. The fees shown below do not include ancillary permit fees, recording fees, project-related mitigation fees, or other fees that are passed through to the applicant from other agencies or as part of the project's environmental review. Fixed Fees: Counter Service Fee for Application Intake Tree Retention Review Structural Review (Fees determined before plan approval) Other Fixed Fees Estimate for Hourly Fees: (166 Hours x $140. 00) Fee Deposit Paid Total Fixed Fees: Total Permit Fee Estimate: $205.28 $2,173.50 $2,378.78 $23,240.00 -$765.28 $24,853.50 Note: The estimate for hourly fees stated above is based on the total estimated number of hours not to exceed 166 hours for the disciplines listed below, and is calculated using the department's hourly rate in effect at the time the work is performed. Based upon the financial disclosures found on page 2, the number of hours required may be modified. The total estimated hours reflect work performed by the following disciplines: Engineering Review, Survey Coordination, Project Management, Constructability, Traffic Review, Planning, and Geotechnical Review .. After receiving the fee estimate from DOES, the applicant has ninety (90) days to complete the application submittal. Please call 206-296-6797 to set up an appointment with the Permit Center to complete your application and payment. If the application is not received within ninety (90) days, the applicant may be required to obtain a new fee estimate or this activity may be cancelled. For further questions on this fee estimate or for other requirements about this permit application, please contact Pete Dye via email pete.dye@metrokc.gov or by telephone at 206-296-7185. Peter Dye, fi. Senior Engineer Land Use Services Division Project Manager.dot 1/26/04 Page I • ® King County Land Use Services Division Permit Fee Estimate Engineering Activity No.: L07SR043 Date: 07 /30/07 Permit Title: Malhi Place Short Plat Permit Type: SITEREVS -Engineering Plan Estimated Maximum Hours: 166 Applicant: Harry Bapla Total Fee: $24,853.50 The following disclaimers are attached and are part of the fee estimate for this permit. The applicant is required to submit a signed copy of this form with the application and fee payment acknowledging that the awlicant has read the disclaimers stated below. Disclaimer Applicants are responsible for all fixed fees, reported hours performed in reviewing submittal materials and processing, up to the fee estimate. Changes in the scope of the project review will result in a revised review fee estimate. Fee estimates are based on information submitted to DOES by the applicant prior to finalization of the permit application. In addition, estimates are determined by utilizing historical data gathered from projects of similar type, size, and scope. The fee estimate will be the maximum fee charged unless the scope of the project changes. Should fewer hours be required to complete the review, then the applicant may receive a refund for those hours. If items are identified that are not originally disclosed or identified later in the process, a new estimate may be required. Applicants will be responsible for any additional hours identified in a new estimate because of: I) Changes in the project and unknown or undisclosed site issues. 2) Incomplete information or errors in applicant submittal. 3) County code fee changes. 4) Fees for Forest Practices Permit if determined necessary. 5) Fees for variance applications and/or structural permit review. 6) More than one major and one minor set of redline corrections. 7) Short Plat Condition 9 -Tree retention plan not submitted per KCC 16.82.156. 8) Short Plat Condition 14 -Recreation plans not submitted. 9) Short Plat Condition 6c -Best Management Practices not evaluated. 10) Short Plat Condition 12 -Street tree plan not provided. 11) Short Plat Condition 7L -Pedestrian tract not shown and landscape plan not provided. 12) Illumination plans for arterial roadway not provided per KCRS 5.05. 13) Pavement design not provided per KCRS 4.03. 14) Structural plans for storm vault not submitted. Keeping review fees at or below the fee estimate will depend on the applicant's commitment to complete the process review. This commitment should include submitting materials which address all County codes, policies, previously approved conditions, and responding to the County's request for corrections or additional information in a timely manner, not to exceed 90 days. Acknowledged: Applicant/Owner Name (print) Date: Applicant/Owner Name (signature) Project Manager.dot 1/26/04 Page 2 • King County Department of Development and Environmental Services 900 Oakesdale A.venue Southwest Renton, WA 98055-1219 November 9, 2006 Harinder Bapla 9501 South 207th Place Kent, WA 98031 RE: Preliminary Approval for Short Subdivision No.L06S0006 Mahli Short Plat Dear Mr. Bapla: The Land Use Services Division (LUSD) has completed review of the short subdivision application captioned above. The LUSD finds that the proposed short subdivision complies with the King County Land Segregation Code (Titie 19A), Zoning Code (Titie 21A), and other applicable codes as specified in King County Code (KCC) !9A.08.060. The short subdivision is granted preliminary approval subject to the Conditions of Preliminary Approval attached hereto and incorporated herein by reference. Any aggrieved party may appeal this decision by the appeal deadline, which is November 27, 2006. The appeal procedure is enclosed for your information. The preliminary approval is valid for a period of 60 months from the date of this letter, unless an appeal is filed. In the event that an appeal is filed, the preliminary approval is valid for a period of 60 months from the date of the appeal decision. Enclosed are the following: • Notice of Decision • Conditions of Preliminary Approval • Appeal Procedure If you have any questions regarding this letter, please contact Fereshteh Dehkordi, Program Manager, at (206) 296-7173 and Curt Foster, Engineer, at (206) 296-7106. incerel~ ames Sanders, Development Engineer Engineering Review Section, LUSD Enclosures cc: GeoDatum Engineers Applicant File Letter.frm/CoverLtr2000.SP.doc 3/9/00 1?:~ Current Planning Section, LUSD MAIN FILE COPY A ® KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES LAND USE SERVICES DIVISION 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 REPORT AND DECISION SHORT SUBDIVISION File No. L06S0006 DESCRIPTION OF THE PROPOSED SHORT SUBDIVISION: This is a short subdivision of a 1.1 acre-parcel into 7 lots for detached single-family dwellings in the R-8 zone. The proposed density 1s 7 dwelling units per acre. The proposed lot sizes range from approximately 3,700 to 4,200 square feet. Please see Attachment 1 for a copy of the short plat map. B. GENERAL INFORMATION: C Owner/Applicant Engineer: STR: Location: Zoning: Acreage: Number of Lots: Density: Proposed Density Lot Size: Proposed Use: Sewage Disposal: Water Supply: Fire District: School District: Hariender Bapla 9501 South 2Q7'h Place Kent, WA 98031 (206) 4 78-0633 Geodatum. Inc. 22525 SE 641h Place# 226 Issaquah, WA 98027 NW'/. 4-22-5 18311 1161h Avenue SE, Renton R-8 1.1 acres 7 8 du/acre 7 du/Acre 3,700 to 4,200 square feet Residential Soos Creek Water and Sewer District Soos Creek Water and Sewer District Fire District 40 Renton School District Complete Application Date: January 31, 2006 Associated Applications: Road Variance File No. L06V0004 HISTORY and BACKGROUND RECEIVED JUL 1 2 2007 Kltfil C0Ut-11Y bAND USE SERVICES The Subdivision Technical Committee (STC) of King County has conducted an on-site examination of the subject property. The STC has discussed the proposed development with the applicant to clarify technical details of the application, and to determine the compatibility of this project with applicable King County plans, codes, and other official documents regulating this development. Report & Decision Page I of JO L06S0006 As a result of preliminary discussions, the applicant presented the Subdivision Technical Committee (STC) with a revised site plan on October 5 2006. The primary modifications include: • Provision of a permanent cul-de-sac • Re-arrangement of the lots D. NATURAL ENVIRONMENT E. F. 1. Topography: The site is generally level. The site slopes slightly down towards the northeast. The maximum slope is less than 2%. 2. Solis: One soil type is found on this site per the 1973 King County Soil Survey. The entire site is designated AgB. The following are AgB soil characteristics: AqB -Alderwood gravely, sandy loam: 0-6% slopes. Runoff is slow and the erosion hazard is slight. This soil type has a moderate limitation for low building foundations due to a seasonally high water table, and severe limitations for septic tank filter fields due to very slow permeability in the substratum. 3. Wetlands/streams: According to the King County Sensitive Areas Folio, no mapped hydrographic features exist on or near this site. 4. Vegetation: This site is primarily covered with pasture grasses. Scattered evergreen/deciduous trees and brush occur in limited numbers. 5. Wildlife: Small birds and animals may inhabit this site; however their population and species are limited due to nearby development. No threatened or endangered species are known to exist on or near the property. 6. Mapped Sensitive Areas: The Sensitive Areas Folio does not identify any mapped sensitive areas as being present on this site. NEIGHBORHOOD CHARACTERISTICS: The property lies within a rapidly developing area east of the City of Renton. The proposed Greenwood short subdivision (KC File L06S023) with 8 lots is located directly east of the site. The properties to tile north, south and east consist of residential development on larger lots with potential for subdivision. The site is developed with a house and a garage which will both be removed. DESIGN FEATURES 1. Lot Pattern and Density: The proposed density and lot dimensions meet the King County Zoning and Subdivision standards. 2. Access/Roadway Section: The proposed lots will obtain access to 1161h Avenue SE via a minor access road extending west from 1161" Avenue SE into the site ending at a permanent cul-de-sac midway into the site. The Subdivision Technical Committee is recommending a pedestrian path from this cul-de-sac to the road and cul-de-sac being built by the Greenwood short plat. This will enhance pedestrian circulation in the area. See cond'1tion 7.L. The applicant has submitted and was granted a variance (KC File L06V0004) for shorter intersection spacing for the proposed on-site road. 3. Drainage: Currently the runoff from the site sheet flows towards the frontage street in a northeasterly fashion. The applicant will be required to provide a drainage detention and water quality facility to manage and treat the runoff from the proposed development. A drainage and recreation tract (Tract B) is proposed at the northeast corner of the site. The drainage facility will be designed and constructed per the 2005 King County Surface Water Design Manual (KCSWDM). Report and Decision L06S0006 G. G. H. 4 Other Design Features: A combined storm drainage and recreation tract is proposed on the northeast corner of the site within Tract B. A 10-foot pedestrian Access Tract will be required from the cul-de-sac to the west property line to connect to the road system within the proposed Greenwood short plat. PUBLIC SERVICES 1. Sewage Disposal: The applicant proposes to serve the subject subdivision by means of a public sewer system managed by the Soos Creek Utility District. A Certificate of Sewer Availability, dated January 5, 2006 indicates this sewer district's capability to serve the proposed development. 2. Water Supply: The applicant proposes to serve the subject subdivision with a public water supply and distribution system managed by the Soos Creek Utility District. A Certificate of Water Availability, dated January 5, 2006 indicates this water district's capability to serve the proposed development. 3. School facilities: The subject subdivision will be served by Benson Hill Elementary, Nelson Junior High, and Lindberg Senior High Schools, all located within the Renton School District. 4. School Access: The District has indicated that the future students from this subdivision will walk to the elementary school and will be bussed to the junior and senior high schools. There is a continuous paved shoulder with delineated fog line along 116th Avenue from the site to school on 116'" Avenue south. 5. Parks and Recreation Space: The nearest public park is Soos Creek Park and Trail approximately one mile northeast of the site on SE Petrovitsky Road. KCC 21A.14 requires subdivisions in the UR and R zone classifications to either provide on-site recreation space or pay a fee to the Parks Division for establishment and maintenance of neighborhood parks. At this time, the applicant is providing a combined recreation and storm facility tract (Tract B). KCC 21 A.14.190 requires subdivisions to provide toUchildren play areas within the recreation space on-site. The applicant is required to improve the tract with landscaping and a play facility for the enJoyment of the future residents. SEPA THRESHOLD DETERMINATION: This short subdivision application is exempt from review under the State Environmental Policy Act (SEPA), RCW 43.21C. FINDINGS/CONCLUSIONS: The proposed preliminary short plat of Greenwood is located directly west of the site and is currently under review by DOES. The applicant was encouraged to coordinate with the proponent of Greenwood short subdivision to obtain access to his short subdivision via a public road to be constructed by Greenwood short subdivision. The applicant would then extend the road into his property from the west with a temporary cul-de-sac at the north property line. The applicant was not successful in obtaining such an agreement with Greenwood applicant Since a vehicular connection from the west is not possible, STC recommends that a pedestrian connection be constructed between the two short plats to allow for pedestrian circulation and access to 1161h Avenue SE by the neighboring properties to the west. See conditions 7 L The subject subdivision will comply with the goals and objectives of the King County Comprehensive Plan and will comply with the requirements of the Subdivision and Zoning Codes and other official land use controls of King County (i.e. 1993 King County Road Standards, 1998 Surface Water Design Manual, etc.), based upon the conditions for final short plat approval. Report and Decision L06S0006 I. DECISION: Proposed Short Plat revised and received October 5, 2006 (Attachment 1) is granted preliminary approval subject to the following conditions of final approval: 1. The proposal shall comply with all platting provisions of King County Title 19A. The final short subdivision recording documents must be prepared by a professional land surveyor, licensed in the State of Washington. These documents shall comply with the conditions of approval listed in this letter. 2. All persons having an ownership interest in the subject property shall sign on the face of the final short subdivision. 3. The final review process must be completed prior to the recording of the short subdivision or the sale of any lots contained within. The Department of Development and Environmental Services (ODES) strongly recommends that the Final Short Plat review package be submitted to the department at least one year prior to the expiration date of the preliminary approval letter. 4. All utilities within proposed rights-of-way must be included within a franchise approved by the King County Council prior to final short plat recording 5. Prior to recording, that the following is required per KCC 19A.08.160: A. Drainage facilities and erosion control measures are consistent with K.C.C. 9.04.090; B. Water mains and hydrants (if required) are installed and fire flow available; C. Grading as necessary so that all lots are accessible by passenger vehicle; D. Specific site improvements are completed that are required and conditioned prior to plat recording or required to remove any safety hazard; 6. 2005 King County Surface Water Design Manual (KCSWDM)-The proposed short plat qualifies for full drainage review as outlined in Chapter One of the Surface Water Design Manual. Final short plat approval shall require full compliance with the drainage provisions set forth in King County Code 9.04. A professional civil engineer licensed in the State of Washington shall prepare drainage plans and a technical information report as outlined in Chapter 2 of the drainage manual. The drainage plan submittal shall demonstrate compliance with all applicable Core and Special Requirements. Compliance may result in reducing the number and/or location of lots as shown on the preliminary approved short plat. Pl'eliminary review has identified the following conditions of approval, which represent portions of the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also be satisfied during engineering and final review. A. Standard plan notes and a construction sequence as specified in the SWDM shall be shown on the eng,neering plans (Reference Section 78). B. As required in KCSWDM Chapter 2, a storm water pollution prevention and spill (SWPPS) plan shall be included with the project engineering plans. C. To implement the required Best Management Practices (BMP's) for treatment of storm water, the final engineering plans and technical information report (TIR) shall clearly demonstrate compliance with all applicable design standards. As described in Chapter 5 of the drainage manual, a subdivision project may implement the required BMP's or defer the BMP requirements until future review of building permits. In either Report and Decision L06S0006 case, the final engineering plans s:hall clearly indicate the applicable BMP standards and requirements for implementation on the recorded plat. Any proposed clearing and grading of lhe site shall also comply with the soil amendment requirements in KCC 16.82.100. D. A proposal to implement the required best management practices for development of the subdivision and to receive credit in sizing the flow control facility should be included with the engineering submittal. The engineering plans and technical information report shall provide all required design standards and procedures for implementing the BMP's when applied. During engineering review, the applicant may also choose alternative designs for best management practices as allowed by the SWDM. The final recorded plat shall include covenants, easements, notes, and other details to implement the BM P's for site development when applied. E. Storm water facilities shall be designed using the KCRTS Conservation flow control standard. Water quality facilities shall also be provided using the Bas·,c Protection Menu. The size of the proposed drainage tracts may have to increase to accommodate the required detention storage volumes and water quality facilities. All runoff control facilities shall be located in a separate tract and dedicated to King County unless portions of the drainage tract are used for recreation space in accordance with KCC 21A.14.180. F. If the storm water design requires implementation of small project BMP's, the following note shall be shown on the final recorded plat: "Permit applications for buildings or other improvements constructed on lots created by this subdivision must be reviewed by King County for compliance with Best Management Practices (BMP's) and other applicable drainage standards as specified in the SWDM. As determined by King County, the permit applicant for each lot must prepare a drainage site plan with procedures for design and maintenance details, and record a declaration of covenant and grant of easement for implementation of the BMPs." G. Consistent with authority and procedures outlined in Chapter 1.4 of the SWDM, adjustments to any of the above requirements may be considered. Adjustments shall be submitted to DOES on the appropriate form and with the minimum fee deposit. 7. 1993 King County Roads Standards iKCRS)-Final short plat approval shall require full compliance with the provisions set forth in the 1993 KCRS, including engineering plans for all road improvements. The engineering plans shall be prepared by a professional civil engineer licensed in the state of Washington. ODES strongly recommends that the engineering plans be submitted at least two years prior to the expiration date of the project. 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). The proposed short subdivision shall comply with the 1993 King County Road Standards (KCRS) including the following requirements: A. The extent of improvements requires submittal of engineering plan and profiles and appropriate review fees. Plans shall be prepared and stamped by a professional engineer licensed in the State of Washington and contain the applicable elements outlined in KCRS and/or the 2005 Surtace Water Design Manual (see Section 2.2.2). Please note that the applicant should submit the plans a minimum of six /6\ months prior to the preliminary approval expiration date. Report and Decision L06S0006 B. 1161 " Avenue SE is classified as a minor arterial street per the KCRS Section 2.02. Urban frontage improvements consisting of curb gutter and sidewalk shall be constructed along the frontage of this road consistent with a (2/3)(4)(5) lane ultimate road design. Direct access to 116~ Avenue SE from the abutting lots is prohibited. A note to this effect shall be shown on the recorded site plan. C. Additional right-of-way shall be dedicated along the 116 1 " Avenue SE frontage to provide 42 feet from centerline of road per KCRS Section 2.02K. Additionally, a 25-foot property line radius shall be provided at the intersection with the on-site road. D. The on-site road as shown on the site plan shall be constructed to the urban minor access classification and be dedicated to King County per KCRS, Section 2.03. . E. A permanent cul-de-sac as shown on the site plan shall be constructed per the KCRS Section 2.08. The ROW for the cul-de-sac bulb shall be placed where it can provide a 36-foot wide stub to the north property line. The ROW tor the cul-de-sac bulb shall be dedicated to King County. Additionally. a 25-foot radius shall be provided at the point where the stub meets the bulb ROW. F. A road variance application regarding intersection spacing was approved by King County (Attachment 2) on June 20~. 2006 (File No. L06V0004). The final engineering plans for the short plat shall comply with all conditions of approval for the road variance decision. G. The minimum entering site distance shall be provided at the intersection of the on-site road and 116~ Avenue SE per the KCRS Section 2.13. Additionally, street illumination shall be provided at the new intersection in accordance with KCRS, Section 5.03. H. Modifications to the above road improvement conditions may be considered by King County pursuant to the variance procedures in KCRS 1.08. Any request for a road variance shall be submitted to ODES on the appropriate form and with the minimum fee deposit. Engineering details that may be shown on the preliminary site plan may not have been reviewed for compliance with KCRS. If differences exist, the final design shall be modified to meet KCRS. J. The proposed road improvements shall address the requirements for road surfacing outlined in KCRS Chapter 4. As noted in section 4.01 F, full width pavement overlay is required where widening existing asphalt. K. Street trees shall be included in the design of all road improvements. and shall comply with the KCRS Section 5.03. L. A 10-foot wide pedestrian tract extending west from the cul-de-sac to the west property line shall be provided. The location of the pedestrian tract shall be coordinated with the Greenwood subdivision. The Pedestrian tract shall be improved with 5-foot paved surface, landscaping and fences on each side. M. Modifications to the above road conditions may be considered by King County pursuant to the variance procedures in KCRS, Section 1.08. 8. Health {KCC 13)-This project is exempt from further King County Heath Department review. However, if improvements are required from the Sewer and/or the Water District, then verification shall be required from said District(s) that the improvements have been bonded and/or installed, prior to final recording of the short plat. Report and Decision L06S0006 9. Building and Construction ~;tandards (TitlEJ 16)-The applicant shall comply with all applicable provisions of KCC 16.82. 10. Fire Code (KCC 17) -Section 902 of the 1997 Edition of Uniform Fire Code- A. Due to inadequate fire apparatus access and the lack of having a fire hydrant located within 350 feet vehicular travel distance from the building envelope of each lot, any future residences constructed within this short plat will have to be sprinklered (NFPA 13D), unless the requirement is removed by the King County Fire Marshal or his/her designee. To remove the sprinkler requirement no street-side parking will be permitted within the short plat (on Tract A) and it will be necessary to install a fire hydrant within 350 feet vehicular travel distance from all lots. The International Fire Code requires all portions of the exterior walls of residences (at grade) to be within 150 feet (as a person would walk via an approved route around the buildings) from approved fire apparatus access. Approved access is a minimum 20-foot wide unobstructed driving surface not over 150 feet in length if dead-end B. Parking can only be permitted on one side of the private roads within the short Plat. C. 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 prior to final engineering approval!. 11. Density and Dimensions (KCC 21 A.12)-All lots shall meet the density and dimensions requirements of the R-8 zone classification or shall be as shown on the face of the approved preliminary short subdivision, whichever is larger. Minor revisions to the short subdivision, which do not result in substantial changes and/or do not create additional lots may be approved at the discretion of the Department of Development and Environmental Services. 12. Street Trees (KCC 21A.16)-Street trees shall be provided as follows (per KCRS 5.03 and KCC 21A.16.050): A. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accommodate sight distance requirements for driveways and intersections. B. Trees shall be located within the street right-of-way and planted in accordance with Drawing No. 5-0CIS> 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 ODES if located within the right-of-way, and shall not include poplar, cottonwood, soft maples, gum, any fruit-bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. Report and Decision L06S0006 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 applicant shall contact Metro Service Planning at 684-1622 to determine if 1161 " SE is on a bus route. If it is a bus route, the street tree plan shall also be reviewed by Metro. H. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within two 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 two years. After two years, the maintenance bond may be released after ODES has completed a second inspection and determined that the trees have been kept healthy and thriving. 13. Road Mitigation Payment System -The applicant or subsequent owner shall comply with Road Mitigation Payment System (MPS), King County Code 14.75, by paying the required MPS fee and administration fee as determined by King County Department of Transportation. The applicant has an option to either: A. Pay the MPS fee at final short plat recording. If this option is chosen, the fee paid shall be the fee in effect at the time of short plat application and a note shall be placed on the face of' the short plat that reads, "All fees required by King County code 14.i'5, Mitigation Payment System (MPS) have been paid." Or 8. Pay the MPS lee at the time of building permit issuance. If this option is chosen, the fee paid shall be the amount in effect as of the date of the building permit application. 14. A combined recreation and drainage facility tract is proposed. The recreation space shall be provided consistent with the requirements of KCC 21A.14.180 and KCC 21 A. 14.190 (i.e., sport court[s], children's play equipment, picnic table(s], benches, etc.). The recreation space plan shall be submitted for review and approval by ODES, with the submittal of the engineering plans. This plan shall include location, area calculations, dimensions, landscaping per KCC 21A. 16 and other general improvements. The approved engineering plans shall be consistent with the recreation plan. The final recreation plan shall be approved prior to the final approval and recording. A performance bond for recreation space improvements shall be posted prior to recording of the plat. 15. A homeowner's association or other workable organization shall be established to the satisfaction of ODES which provides for the ownership and continued maintenance of the pedestrian tract and the recreation tract. 16. School Impact Fees-Lots within this subdivision are subject to King County Code 21A.43, which imposes tees to fund school system improvements needed to serve new development. As a condition of final approval, the total amount of the school impact fee shall be assessed and collected when the building permit is issued using the impact fee in effect at the time of permit application. Notes to this affect shall be shown on the final plat. Other Considerations A. Preliminary approval of this application does not limit the applicant's responsibility to obtain any required permit or license from the State or other regulatory body. This may include, but not be limited to, obtaining a forest practice permit, an HPA permit, building permits, and other types of entitlements as necessitated by circumstances. Report and Decision L06S0006 B. Development of the subject property may require registration with the Washington State Department of Licensing, Real Estate Division Parties and Persons of Interest: BAPLA HARINDER 9501 S 207TH PL KENT WA 98031 BISJAK B.J. 18226 116TH AVE SE RENTON WA 98058 CLAUSSEN, KIM PROGRAM MANAGER Ill DDES/LUSD MS OAK DE 0100 DEHKORDI, FERESHTEH PROJECT MANAGER II DDES/LUSD MS OAK DE 0100 DELAPPE MYRA 18221 118TH AVE SE RENTON WA 98058 FOSTER, CURT SR. ENGINEER DOES/ LUSD MS OAK DE 0100 GEO DATUM INC. 22525 SE 64THPL, STE 266 ISSAQUAH WA 98027 NEPEAN CHRIS PO BOX 59532 RENTON WA 98058-2532 WHITING, KELLY KING COUNTY DOT-ROAD SERVICES MS: KSC -TR -0231 DINSMORE, LISA, SUPERVISOR ODES/ LUSD MS OAK DE 0100 JAMES SANDERS, DEVELOPMENT ENGINEER ODES I LUSD MS OAK DE 0100 Report and Decision L06S0006 Appeal Information and Parties of Record RIG.HT TO APPEAL This action may be appealed in writing to the King County Hearing Examiner. with a fee of $250 (check payable to King County Office of Finance). As required by KCC 20.20.090 and 20.24.090, the appeal period shall be fourteen (14) calendar days and shall commence on the third day after the notice of decision is mailed. Filing an appeal requires actual delivery to the King County Land Use Services Division prior to the close of business (4:30 p.m.) on November 27, 2006. Prior mailing is not sufficient if actual receipt by the Division does not occur within the applicable time period. The Examiner does not have authority to extend the time period unless the Division 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 timely Notice of Appeal has been filed, the appellant shall file a statement of appeal within a 21-day calendar period commencing three days after the notice of decision is mailed. The statement of appeal shall identify the decision being appealed (including file number) and the alleged errors in that decision. The statement of appeal shall state: 1) specific reasons why the decision should be reversed or modified; and 2) the harm suffered or anticipated by the appellant, and the relief sought. The scope of an appeal shall be based on matters or issues raised in the statement of appeal. Failure to timely file a notice of appeal, appeal fee, or statement of appeal deprives the Examiner of jurisdiction to consider the appeal. Appeals must be submitted to the Department of Development and Environmental Services, addressed as follows: LAND USE APPEAL Land Use Services Division Department of Development and Environmental Services BlackRiver Corporate Park 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 Any party may make a request for a pre-hearing conference. For more information.regarding appeal proceedings and pre-hearing conferences, please contact the Office of the Examiner for a Citizens' Guide to the Examiner Hearings and/or read KCC 20.20 and 20.24. Report and Decision L06S0006 I ' I ' " i z ~ m ''---~~-------- Q ' ' MALHI SHORT PLAT PRWMINAAY SHO!!T Pi..-.T srn: PL,1,N 18:J11 116TH .-.VE. SE ~(NTON. W.-. ~8056 I.--·-=-"~-,,, r ~=~------1· e_:__±::: • L____ --- ATTACHMENT~-'--~ -~as-;=-_QF_=-,.,..,,-- PAGE PAGE ·-:-,- ~ ' - '-® King County Road Services Division Department of Trao:sPQf1:iltiot1 K5C-TR~C222 201 5ovtti Jai;:kson StrlMt Seattle, WA gS,104-3856 June 20, 2006 Tim Hildebrand 22.525 SE 64th Place, Suite 266 Issaquah, WA 98027 I ,-. • a i, .. c DD E.S RE: Road V arionce LO§Y0004 Malbi Short PJat Related File L06S0006 Dear Mr. Hlldeb.raild: Thank you for your application for variances from the King County Road Standa«:is (KCRS). You requested variances from Sections 2.10 and 2.08 of the KCRS concerning the inleisection spacing and cul-de-sac design for the proposed new ac,:o,ss onto !16th Avenue SE. The KCRS requircs 500 fu,t of intersection spacing along a minor arterial. A hammerhead turnaround is proposed at the intersection in the plat interior. We reviewed yonr proposal and agree that 268 to 320 feet of intersection spacing to the south to SE l 84th Street would be acceptable. The proposed range of intersection spacing would allow the proposed access point or an access located near or at the north property line. The Deparonont of Development and Environmental Services' (DDES) Subdivision Technical Committee will be determining the 0"3.ct intersection location. A minimum of 350 fu,t of intersection spacing would'be provided to the north to SE 182nd Streel I approve a variance fur the proposed range of minimum intersection spacing from 268 to 300 feet to the south to SE I 84th Street and the resultant r,:dnced intersection spacing to the north to SE l 8~th Street The proposal for a harnmemead turnaround is denied. There is a sufficient flat useable area within the site to provide a standard 80-foot diameter turnaround bulb. The DDES will be determining if a temporary bulb can be provided. This decision applies only to KCRS identified in the variance request. All other design requirements in the KCRS and other regulations, such as $wface water management and zoning, must still be satisfied fur a land use permit application. The applicant retains the rights and privileges afforded by King County Code and adopted Public Rules pertaiuing to road variance processing (KCC 14.42, PUT I 0-2). This variance decision is valid for one year from date of letlel: m,Jess an associated land use permit is pending or submitted within the one year period. In these cases, the variancr:: decision is valid for the duration of the permit processing. @-- ATTACHMENT~-z..~- OF.~--PAGE PAGE .. •. • Tim Hildebrand hme 20, 2006 Page2 A copy of staffs analysis, findings, and conclusions is ,mclosed. If you have any questions, pleaoc call Craig Comfort, Road Variance Engineer, Traffic Engineering Sectiori, at 206--263-6109. Sincerely, ~~~ Paulette Norman, P .E. County Road Engineer PN:CC:kc cc: James S&nders, P.E., Development Engineer, Land Use Services Division (LUSD), Department of Development and Environmental Services (DOES) Pete Dye P.E., Senior Engineer, LUSO, DOES Linda Dougherty, Division Director, Road Services Division (RSD), Department of Transportation (DOl) Matthew Nolan, P.E., County Traffic Engineer, Traffic Bogineering Section, RSD, DOT Patin Kara, P .E., Supervising Engineer, Traffic Engineering Section, RSD, DOT Kris Langley, Senior Engineer, Traffic Engineering Section, RSD, DOT Craig Comfort, P.E., Road Variance Engineer, Trnffic Engineering Section, RSD, DOT ATTACHMENT~2-~~ '® King County _ ___Road__Services DivisUlfi ___ _ Department of Transportation KSC-TR-0222 201 South Jackson Street Seattle, WA 98104-3856 June 20, 2006 Tim Hildebrand 22525 SE 64th Place, Suite 266 Issaquah, WA 98027 RE: Road Variance L06V0004 -Malhi Short Plat -Related File L06S0006 Dear Mr. Hildebrand: Thank you for your application for variances from the King County Road Standards (KCRS). You requested variances from Sections 2.10 and 2.08 of the KCRS concerning the intersection spacing and cul-de-sac design for the proposed new access onto I 16th Avenue SE. The KCRS requires 500 feet of intersection spacing along a minor arterial. A hammerhead turnaround is proposed at the intersection in the plat interior. . -~We reviewed your proposal and agree tha~t of intersection spacing to the south t SE 184th Street would be acceptable. The proposed range of intersection spacing would allo the proposed access point or an access located near or at the north property line. The Depdrtment of Development and Environmental Services' (ODES) Subdivision Technical Committee will be determining the exact intersection location. A minimum of 350 feet of intersection spacing would be provided to the north to SE 182nd Street. I approve a variance for the proposed range of minimum intersection spacing from 268 to 300 feet to the south to SE 184th Street and the resultant reduced intersection spacing to the north to SE 184th Street. The proposal for a hammerhead turnaround is denied. There is a sufficient flat useable area within the site to provide a standard 80-foot diameter turnaround bulb. The DDES will be determining if a temporary bulb can be provided. This decision applies only to KCRS identified in the variance request. All other design requirements in the KCRS and other regulations, such as surface water management and zoning, must still be satisfied for a land use permit application. The applicant retains the rights and privileges afforded by King County Code and adopted Public Rules pertaining to road variance processing (KCC 14.42, PUT 10-2). This variance decision is valid for one year from date ofletter unless an associated land use permit is pending or submitted within the one year period. In these cases, the variance decision is valid for the duration of the permit processing. @·~12021,1 Jim Hildebrand June 20, 2006 Page 2 ~~Ac·opy of staffs imalysis; firulings; and eonclus10ns IS enclosed. If you have any question~ ~···· please call Craig Comfort, Road Variance Engineer, Traffic Engineering Section, at 206-263-6109. Sincerely, Paulette Norman, P.E. County Road Engineer PN:CC:kc cc: James Sanders, P.E., Development Engineer, Land Use Services Division (LUSD), Department of Development and Environmental Services (DDES) Pete Dye P.E., Senior Engineer, LUSD, DDES Linda Dougherty, Division Director, Road Services Division (RSD), Department of Transportation (DOT) Matthew Nolan, P.E., County Traffic Engineer, Traffic Engineering Section, RSD, DOT Fatin Kara, P.E., Supervising Engineer, Traffic Engineering Section, RSD, DOT Kris Langley, Senior Engineer, Traffic Engineering Section, RSD, DOT Craig Comfort, P.E., Road Variance Engineer, Traffic Engineering Section, RSD, DOT •. ' ® King County Road Services Division Department of Transportation Traffic Engineering Section M8 KSC-TR-0222 201' South Jackson Street Seattle, WA 98104 June 20, 2006 TO: Variance File FM: Craig Comfort, P.E., Road Variance Engineer, Traffic Engineering Section RE: Road Variance L06V0004 -Malhi Short Plat -Related File L06S0006 Applicant's Presentation: 1. The proposed seven-lot short plat is at 1831 l -I 16th Avenue SE. A new intersection onto 116th A venue SE is proposed for the access road into the site. The street at 116th Avenue SE is classified as a minor arterial for which the King County Road Standards (KCRS) requires a minimum of 500 feet of intersection spacing. The existing spacing between SE 182nd Street and SE 184th Street at 650 feet make compliance with the required 500 feet of intersection spacing impossible. There are no alternative accesses to the site other than off 116th Avenue SE. The applicant proposes a minimum of 268 feet of intersection spacing to the south to SE 184th Street. This would leave over 350 feet of intersection spacing northward to SE 182nd Street. 2. A variance is also requested for a hammerhead turnaround for the interior access road. A King County Alternative Fire Apparatus Access Turnaround "hammerhead" would result in a more conforming lot layout as well as storm drainage and recreational tracts. The hammerhead would be at an intersection that provides stubs to the north and south. This will help eliminate additional non-conforming access points to 116th Avenue SE. Staffs Findings and Conclusions: 1. The proposed layout on the plans with the access 57 feet south of the north property line would result in a 268 foot intersection spacing to the south to SE 184th Street. Over 350 feet of intersection spacing would result to the north to SE 182nd Street. The subdivision technical committee requested intersection spacing variance approval to allow an alternative access near the north property line. The committee is still deliberating on the exact location for the access. The entering sight distance at the proposed access far exceeds KCRS minimums. 2. There is no good reason that a standard cul-de-sac bulb (80 feet in diameter) cannot be provided on the site. The Department of Development and Environmental Services (DDES) will determine if a temporary turnaround (80 foot in diameter) would be allowed. y arian,;e File Jooe 20, 2006 Page 2 ~llietoads on the plans nave a private road label. The plans show the stub road to the south not extending to near the property line. Consultations with the DDES clarify that the interior roads will be dedicated to King County (public) and th.at the stub to the south would ---m-..._ ___ • _ _, ... • ··•--· -,---, .. • • ' " -----_, be extended to near the property line. -------------~--- ,;f d' C c; +::; I !,.v··~ ~) Malhi Short Plat (L07SR043) Page 1 of4 Haidar, Mazen From: Haidar, Mazen Sent: Wednesday, April 08, 2009 7:33 AM To: 'Mark X. Plog, PE, PLS' Cc: Dye, Pete Subject: RE: Malhi Short Plat (L07SR043) Mark, 1. the subject project is vested under the 199::! KCKS, whereas Fig. 7-015 1s in the LOOI KCKS. Using locking lid per Fig. 7-015 appears to be a reasonable solution for this issue, however; the project inspector my not agree to it during construction. My recommendation s to use round solid cover the 1993 KCRS. 2. The frontage improvement including concrete curb, gutter and sidewalk shall extend the full property frontage and thereafter a SW to shoulder transition ramps per the 1993 l<CRS -DWG 4-004 shall be sho·.vn on plans on the south and north ends of the frontage improvements. Thanks. Mazen Haidar, P .E. Engineer II Department of De118lopment and Environmental Services 900 Qakesdale Awnue SW Renton. WA 98055-1219 mazen. h aid a r@lc:ingc91,,1_!:!ty_JJ_Q_':,,'. P 206 296 7133 F 206. 296. 6613 Office Hours M -Th 6:00 am -4:30 pm From: Mark X. Plog, PE, PLS [mailto:mxp@geodatum.com] Sent: Thursday, April 02, 2009 4:41 PM To: Haidar, Mazen Subject: RE: Malhi Short Plat (L07SR043) Mazen: Please see my responses below in green © Thanks, Mark From: Haiclar, Mazen [mailto:Mazen.Haidar@kingcounty.gov] 04/22/2009 Malhi Short Plat (L07SR043) Mark, Page 3 of 4 As a follow up to our telephone conversation yesterday please submit 3 sets of complete Civil Plans after making the following corrections: 1. Please show minimum 2' X 2' maintenance personnel access in each of the 5' X 10' openings to vault, this should be reflected in plan views and in the vault details. We wili make tkc rev,si0n as requested. 2. CB# 2 in 116th should have solid round cover. I am not sure why you are requesting a round cover on a Type 1 CB. I need some additional clarification on this item. The grate cover are to be installed at the curb face or gutter flowline, storm structures in the middle of the travel lane as you show will need to have solid round cover, if this cover cannot be provided tor a catch basin, then SDMH will need to be installed. Would we not just provide a solid locking CB lid per KC detail 7-015 rather than a circular lid?? 3. Storm pipe from CB# 2 to outfall is too far into the existing paved travel lane, please revise location of this pipe and see if possible to install in the road shoulder. ~:::c~t:~g t~:~ ::-: t~c ~~:::~!~er·:.·~~ c::::~~:~crc~, ~~t t~crc :~ ~:. , " .':~;::; sanitary sewer line and gas line that make this impractical (see attached sketch). I do not believe there is a more suitable location for this line than where it is currently shown. Given the explanation you provided the proposed location of this storm structure can be accepted, however; please be informed that the inspector most likely will rAqnirP full width of pavement ov<>rlay extending to the lor;ition of thP proposed outfall Pleas" rnnfirm that you are fine with high possibility so I can accept the proposed location of this storm structure. The overlay is cheaper than moving the sewer and gas -so yes that is understood and accepted. 4. Please label S.W. to shoulder ramp on both ends of frontage improvements On the south end of the project the improvements end with a half driveway section. I don't believe a sidewalk shoulder ramp is necessary or appropriate in that location. The half driveway section acts as a ramp. S.W. improvement shall extend along the property frontage to the property line and S.W. to shoulder ramp transitions will be required thereafter, have driveway section is not acceptable. We were previously asked to extend the frontage improvements to include the half driveway on the south. Are you asking that we remove this offsite work and just provide the transition ramp instead? 5. Show removable bollards in plan views We will make this revision as requested. Please let me know if you have any questions, thanks. ti KingCounty Mazen Haidar, PE Engineer II oepartment of OeYelopment and Environmental Services 900 Oakesdale Avenue fNII Renton, WA 98055 -1219 mazen.haidar@kingcounty.gov P206 296 7133 F 206 296. 6613 04/22/2009 King County Department of Development and Environmental Services 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 November 9, 2006 Harinder Bapla 9501 South 207'h Place Kent, WA 98031 RE: Preliminary Approval for Short Subdivision No.L06S0006 Mahli Short Plat Dear Mr. Bapla: The Land Use Services Division (LUSD) has completed review of the short subdivision application captioned above. The LUSD finds that the proposed short subdivision complies with the King County Land Segregation Code (Tiiie 19A), Zoning Code (Title 21A), and other applicable codes as specified in King County Code (KCC) 19A.08.060. The short subdivision is granted preliminary approval subject to the Conditions of Preliminary Approval attached hereto and incorporated herein by reference. Any aggrieved party may appeal this decision by the appeal deadline, which is November 27, 2006. The appeal procedure is enclosed for your information. The preliminary approval is valid for a period of 60 months from the date of this letter, unless an appeal is filed. In the event that an appeal is filed, the preliminary approval is valid for a period of 60 months from the date of the appeal decision. Enclosed are the following: • Notice of Decision • Conditions of Preliminary Approval • Appeal Procedure If you have any questions regarding this letter, please contact Fereshteh Dehk:ordi, Program Manager, at (206) 296-7173 and Curt Foster, Engineer, at (206) 296-7106. incerel~ ames Sanders, Development Engineer Engineering Review Section, LUSD Enclosures cc: GeoDatum Engineers Applicant File Letter.frm/coverLtr2000,SP.doc 3/9/00 12?:.~ Current Planning Section, LUSD MAIN FILE COPY A. B. C ® KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES LAND USE SERVICES DIVISION 900 Oakesdale Avenue Southwest Renton, WA 98057-5212 REPORT AND DECISION SHORT SUBDIVISION File No. L06S0006 DESCRIPTION OF THE PROPOSED SHORT SUBDIVISION: This is a short subdivision of a 1.1 acre-parcel intoJ lots for detached single-family dwellings in the R-8 zone. The proposed density 1s 7 dwelling units per acre. The proposed lot sizes range from approximately 3,700 to 4,200 square feet. Please see Attachment 1 for a copy of the short plat map. GENERAL INFORMATION: Owner/Applicant: Engineec STR: Location: Zoning: Acreage: Number of Lots: Density: Proposed Density Lot Size: Proposed Use: Sewage Disposal: Water Supply: Fire District: School District: Hariender Bapla 9501 South 2Q7" Place Kent, WA 98031 (206) 478-0633 Geodatum, ln.c. 22525 SE 54th Place# 226 Issaquah, WA 98027 NW Y. 4-22-5 18311 116" Avenue SE, Renton R-8 1.1 acres 7 8 du/acre 7 du/Acre 3,700 to 4,200 square feet Residential Soos Creek Water and Sewer District Soos Creek Water and Sewer District Fire District 40 Renton School District Complete Application Date: January 31, 2006 Associated Applications: Road Variance File No. L06V0004 HISTORY and BACKGROUND RECEIVED JUL 1 2 2007 K\NGCOUl'l1Y I.AND USE SE!MCES The Subdivision Technical Committee (STC) of King County has conducted an on-site examination of the subject property. The STC has discussed the proposed development with the applicant to clarify technical details of the application, and to determine the compatibility of this project with applicable King County plans, codes, and other official documents regulating this development. Report & Decision Page I of 10 L06S0006 As a result of preliminary discussions, the applicant presented the Subdivision Technical Committee (STC) with a revised site plan on October 5 2006. The primary modifications include: • Provision of a permanent cul-de-sac • Re-arrangement of the lots D. NATURAL ENVIRONMENT 1. Topography: The site is generally level. The site slopes slightly down towards the northeast. The maximum slope is less than 2%. 2. Soils: One soil type is found on this site per the 1973 King County Soil Survey. The entire site is designated AgB. The following are AgB soil characteristics: AgB -Alderwood gravely, sandy loam: 0-6% slopes. Runoff is slow and the erosion hazard is slight. This soil type has a moderate limitation for low building foundations due to a seasonally high wat,ar table, and severe limitations for septic tank filter fields due to very slow permeability in the substratum. 3. Wetlands/streams: According to the King County Sensitive Areas Folio, no mapped hydrographic features exist on or near this site. 4. Vegetation: This site is primarily covered with pasture grasses. Scattered evergreen/deciduous trees and brush occur in limited numbers. 5. Wildlife: Small birds and animals may inhabit this site; however their population and species are limited due to nearby development. No threatened or endangered species are known to exist on or near the property. 6. Mapped Sensitive Areas: The SensitivE, Areas Folio does not identify any mapped sensitive areas as being present on this site. E. NEIGHBORHOOD CHARACTERISTICS: The property lies within a rapidly dnveloping area east of the City of Renton. The proposed Greenwood short subdivision (KC File L06S023) with 8 lots is located directly east of the site. The properties to the north, south and east consist of residential development on larger lots with potential for subdivision. The site is developed with a house and a garage which will both be removed. F. DESIGN FEATURES 1. Lot Pattern and Density: The proposed density and lot dimensions meet the King County Zoning and Subdivision standards. 2. Access/Roadway Section: The proposed lots will obtain access to 1161h Avenue SE via a minor access road extending west from 116'" Avenue SE into the site ending at a permanent cul-de-sac midway into the site. The Subdivision Technical Committee is recommending a pedestrian path from this cul-de-sac to the road and cul-de-sac being built by the Greenwood short plat. This will enhance pedestrian circulation in the area. See condition 7.L. The applicant has submitted and was granted a variance (KC File L06V0004) for shorter intersection spacing for the proposed on-site road. 3. Drainage: Currently the runoff from the site sheet flows towards the frontage street in a northeasterly fashion. The applicant will be required to provide a drainage detention and water quality facil~y to manage and treat the runoff from the proposed development. A drainage and recreation tract (Tract BJ is proposed at the northeast corner of the site. The drainage facility will be designed and constructed per the 2005 King County Surface Water Design Manual (KCSWDM). Report and Decision L06S0006 4. Other Design Features·. A combined storm drainage and recreation tract is proposed on the northeast corner of the site within Tract B. A 10-foot pedestrian Access Tract will be required from the cul-de-sac to the west property line to connect to the road system within the proposed Greenwood short plat. G. PUBLIC SERVICES 1. Sewage Disposal: The applicant proposes to serve the subject subdivision by means of a public sewer system managed by the Soos Creek Utility District. A Certificate of Sewer Availability, dated January 5, 2006 indicates this sewer district's capability to serve the proposed development. 2. Water Supply: The applicant proposes to serve the subject subdivision with a public water supply and distribution system managed by the Soos Creek Utility District. A Certificate of Water Availability, dated January 5, 2006 indicates this water district's capability to serve the proposed development. 3. School facilities: The subject subdivision will be served by Benson Hill Elementary, Nelson Junior High, and Lindberg Senior High Schools, all located within the Renton School D•strict. 4. School Access: The District has indicated that the future students from this subdivision will walk to the elementary school and will be bussed to the junior and senior high schools. There is a continuous paved shoulder with delineated fog line along 1161h Avenue from the site to school on 1161h Avenue south. 5. Parks and Recreation Space: The nearest public park is Soos Creek Park and Trail approximately one mile northeast of the site on SE Petrovitsky Road. KCC 21A 14 requires subdivisions in the UR and R zone classifications to either provide on-site recreation space or pay a fee to the Parks Division for establishment and maintenance of neighborhood parks. At this time, the applicant is providing a combined recreation and storm facility tract (Tract 8). KCC 21 A.14.190 requires subdivisions to provide toUchildren play areas within the recreation space on-site. The applicant is required to improve the tract with landscaping and a play facility for the enJoyment of the future residents. G. SEPA THRESHOLD DETERMINATION: This short subdivision application is exempt from review under the State Environmental Policy Act (SEPA), RCW 43.21 C. H. FINDINGS/CONCLUSIONS: The proposed preliminary short plat of Greenwood is located directly west of the site and is currently under review by DOES. The applicant was encouraged to coordinate with the proponent of Greenwood short subdivision to obtain access to his short subdivision via a public road to be constructed by Greenwood short subdivision. The applicant would then extend the road into his property from the west with a temporary cul-de-sac at the north property line. The applicant was not successful in obtaining such an agreement with Greenwood applicant. Since a vehicular connection from tt,e west is not possible, STC recommends that a pedestrian connection be constructed between the two short plats to allow for pedestrian circulation and access to 116th Avenue SE by the neighboring properties to the west. See conditions 7.L. The subject subdivision will comply with the goals and objectives of the King County Comprehensive Plan and will comply with the requirements of the Subdivision and Zoning Codes and other official land use controls of King County (i.e. 1993 King County Road Standards, 1998 Surface Water Design Manual, etc.), based upon the conditions for final short plat approval. Report and Decision L06S0006 I. DECISION: Proposed Short Plat revised and received October 5, 2006 (Attachment 1) is granted preliminary approval subject to the following conditions of final approval: 1. The proposal shall comply with all platting provisions of King County Title 19A. The final short subdivision recording documents must be prepared by a professional land surveyor, licensed in the State of Washington. These documents shall comply with the conditions of approval listed in this letter. 2. All persons having an ownership interest in the subject property shall sign on the face of the final short subdivision. 3. The final review process must be completed prior to the recording of the short· subdivision or the sale of any lots contained within. The Department of Development and Environmental Services (ODES) strongly recommends that the Final Short Plat review package be submitted to the department at least one year prior to the expiration date of the preliminary approval letter. 4. All utilities within proposed rights-of-way must be included within a franchise approved by the King County Council prior to final short plat recording 5. Prior to recording, that the following is required per KCC 19A.08.160: A. Drainage facilities and erosion control measures are consistent with K.C.C. 9.04.090; 8. Water mains and hydrants (if requ·ired) are installed and fire flow available; C. Grading as necessary so that all lots are accessible by passenger vehicle; D. Specific site improvements are completed that are required and conditioned prior to plat recording or required to remove any safety hazard; 6. 2005 King County Surface Water Design Manual (KCSWDM)-The proposed short plat qualifies for full drainage review as outlined in Chapter One of the Surface Water Design Manual. Final short plat approval shall require full compliance with the drainage provisions set forth in King County Code 9.04. A professional civil engineer licensed in the State of Washington shall prepare drainage plans and a technical information report as outlined in Chapter 2 of the drainage manual. The drainage plan submittal shall demonstrate compliance with all applicable Core and Special Requirements. Compliance may result in reducing the number and/or location of lots as shown on the preliminary approved short plat. Preliminary review has identified the following conditions of approval, which represent portions of the drainage requirements. All other applicable requirements in KCC 9.04 and the Surface Water Design Manual (SWDM) must also be satisfied during engineering and final review. A. Standard plan notes and a construction sequence as specified in the SWDM shall be shown on the engineering plans (Reference Section 78). 8. As required in KCSWDM Chapter 2, a storm water pollution prevention and spill (SWPPS) plan shall be included with the project engineering plans. C. To implement the required Best Management Practices (BM P's) for treatment of storm water, the final engineering plans and technical information report (TIR) shall clearly demonstrate compliance with all applicable design standards. As described in Chapter 5 of the drainage manual, a subdivision project may implement the required BM P's or defer the BMP requirements until future review of building permits. In either Report and Decision L06S0006 case, the final engineering plans shall clearly indicate the applicable BMP standards and requirements for implementation on the recorded plat. Any proposed clearing and grading of the site shall also comply with the soil amendment requirements in KCC 16.82.100. D. A proposal to implement the required best management practices for development of the subdivision and to receive credit in sizing the flow control facility should be included with the engineering submittal. The engineering plans and technical information report shall provide all required design standards and procedures for implementing the BMP's when applied. During engineering review, the applicant may also choose alternative designs for best management practices as allowed by th_e SWDM. The final recorded plat shall include covenants, easements, notes, and other details to implement the BM P's for site development when applied. E. Storm water facilities shall be designed using the KCRTS Conservation flow control standard. Water quality facilities shall also be provided using the Basic Protection Menu. The s·,ze of the proposed drainage tracts may have to increase to accommodate the required detention storage volumes and water quality facilities. All runoff control facilities shall be located in a separate tract and dedicated to King County unless portions of the drainage tract are used for recreation space in accordance with KCC 21A.14.180. F. If the storm water design requires implementation of small project BM P's, the following note shall be shown on the final recorded plat: "Permit applications for buildings or other improvements constructed on lots created by this subdivision must be reviewed by King County for compliance with Best Management Practices (BMP's) and other applicable drainage standards as specified in the SWDM. As determined by King County, the permit applicant for each lot must prepare a drainage site plan with procedures for design and maintenance details, and record a declaration of covenant and grant of easement for implementation of the BMPs." G. Consistent with authority and procedures outlined in Chapter 1.4 of the SWDM, adjustments to any of the above requirements may be considered. Adjustments shall be submitted to ODES on the appropriate form and with the minimum fee deposit. 7. 1993 King County Roads Standards fKCRS)· Final short plat approval shall require full compliance with the provisions set forth in the 1993 KCRS, including engineering plans for all road improvements. The engineering plans shall be prepared by a professional civil engineer licensed in the state of Washington. DOES strongly recommends that the engineering plans be submitted at least two years prior to the expiration date of the proiect. 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). The proposed short subdivision shall comply with the 1993 King County Road Standards (KCRS) including the following requirements: A. The extent of improvements requires submittal of engineering plan and profiles and appropriate review fees. Plans shall be prepared and stamped by a professional engineer licensed in the State of Washington and contain the applicable elements outlined in KCRS and/or the 2005 Surface Water Design Manual (see Section 2.2.2). Please note that the applicant should submit the plans a minimum of six (6) months prior to the preliminary approval expiration date. Report and Decision L06S0006 , B. 1161 h Avenue SE is classified as a minor arterial street per the KCRS Section 2.02. Urban frontage improvements consisting of curb gutter and sidewalk shall be constructed along the frontage of this road consistent with a (2/3)/4)(5) lane ultimate road design. Direct access to 116th Avenue SE from the abutting lots is prohibited. A note to this effect shall be shown on the recorded site plan. C. D. Additional right-of-way shall be dedicated along the 1161 h Avenue SE frontage to provide 42 feet from centerline of road per KCRS Section 2.02K. Additionally, a 25-foot property line radius shall be provided at the intersection with the on-site road. The on-site road as shown on the site plan shall be constructed to the urban minor access classification and be dedicated to King County per 1 KCRS, Section 2.03. - E. F. H. J. K. L. M. A permanent cul-de-sac as shown on the site plan shall be constructed per the KCRS Section 2.08. The ROW for the cul-de-sac bulb shall be placed where it can provide a 36-foot wide stub to the north property line. The ROW for the cul-de-sac bulb shall be dedicated to King County. Additionally. a 25-foot radius shall be provided at the point where the stub meets the bulb ROW. A road variance application regarding intersection spacing was approved by King County (Attachment 2) on June 20'", 2006 (File No. L06V0004). The final engineering plans for the short plat shall comply with all conditions of approval for the road variance decision. The minimum entering site distance shall be provided at the intersection of the on-site road and 116th Avenue SE per the KCRS Section 2.13. Additionally, street illumination shall be provided at the new intersection in accordance with KCRS, Section 5.03. Modifications to the above road improvement conditions may be considered by King County pursuant to the variance procedures in KCRS 1.08. Any request for a road variance shall be submitted to ODES on the appropriate form and with the minimum fee deposit. Engineering details that may be shown on the preliminary site plan may not have been reviewed for compliance with KCRS. If differences exist, the final design shall be modified to meet KCRS. The proposed road improvements shall address the requirements for road surfacing outlined in KCRS Chapter 4. As noted in section 4.01 F. full width pavement overlay is required where widening existing asphalt. Street trees shall be included in the design of all road improvements, and shall comply with the KCRS Section 5.03. A 10-foot wide pedestrian tract extending west from the cul-de-sac to the west property line shall be provided. The location of the pedestrian tract shall be coordinated with the Greenwood subdivision. The Pedestrian tract shall be improved with 5-foot e.aved surface, landscaping and ~ on each side. Modifications to the above road conditions may be considered by King County pursuant to the variance procedures in KCRS, Section 1.08. 8. Health (KCC 13)-This project is exempt from further King County Heath Department review. However, if improvements are required from the Sewer and/or the Water District, then verification shall be required from said District(s) that the improvements have been bonded and/or installed, prior to final recording of the short plat. Report and Decision L06S0006 ; 9. Building and Construction Standards (Title, 16)-The applicant shall comply with all applicable provisions of l<CC 16.82. 10. Fire Code (KCC 17) -Section 902 of the 1997 Edition of Uniform Fire Code- A Due to inadequate fire apparatus access and the lack of having a lire hydrant located within 350 feet vehicular travel distance from the building envelope of each lot, any future residences constructed within this short plat will have to be sprinklered (NFl'A 13D), unless the requirement is removed by the King County Fire Marshal or his/her designee. To remove the sprinkler requirement no street-side parking will be permitted within the short plat (on Tract A) and it will be necessary to install a fire hydrant within 350 feet vehicular travel distance from all lots. The International Fire Code requires all portions of the exterior walls of residences (at grade) to be within 150 feet (as a person would walk via an approved route around the buildings) from approved fire apparatus access. Approved access is a minimum 20-foot wide unobstructed driving surface not over 150 feet in length if dead-end B. Parking can only be permitted on one side of the private roads within the short Plat. C. 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 prior to final engineering approval. 11. Density and Dimensions (KCC 21A.12)-All lots shall meet the density and dimensions requirements of the R-8 zorna classification or shall be as shown on the face of the approved preliminary short subdivision, whichever is larger. Minor revisions to the short subdivision, which do not result in substantial changes and/or do not create additional lots may be approved at the discretion of the Department of Development and Environmental Services. 12. Street Trees {KCC 21A.16) -Street trees shall be provided as follows (per KCRS 5.03 and KCC 21A.16.050): A. Trees shall be planted at a rate of one tree for every 40 feet of frontage along all roads. Spacing may be modified to accommodate sight distance requirements for driveways and intersections. B. Trees shall be located within the street right-of-way and planted in accordance with Drawing No. 5-009 of the 1993 King County Road Standards, unless King County Department of Transportation determines that trees should not be located in the street right-of-way. C. If King County determines that the required street trees should not be located within the right-of-way, they shall be located no more than 20 feet from the street right-of-way line. D. The trees shall be owned and maintained by the abutting lot owners or the homeowners association or other workable organization unless the County has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the final recorded plat. E. The species of trees shall be approved by DOES if located within the right-of-way, and shall not include poplar, cottonwood, soft maples, gum, any fruit-bearing trees, or any other tree or shrub whose roots are likely to obstnuct sanitary or storm sewers, or that is not compatible with overhead utility lines. Report and Decision L06S0006 F. The applicant shall submit a street tree plan and bond quantity sheet for review and approval by DDES prior to engineering plan approval. G. The applicant shall contact Metro Service Planning at 684-1622 to determine if 116th SE is on a bus route. If it is a bus route, the street tree plan shall also be reviewed by Metro. H. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond is posted, the street trees must be installed and inspected within two 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 two years. After two years, the maintenance bond may be released after DOES has completed a second inspection and determined that the trees have been kept healthy and thriving. 13. Road Mitigation Payment System -The applicant or subsequent owner shall comply with Road Mitigation Payment System (MPS), King County Code 14.75, by paying the required MPS fee and administration fee as determined by King County Department of Transportation. Tl1e applicant has an option to either: A. Pay the MPS fee at final short plat recording. If this option is chosen, the fee paid shall be the l'ee in effect at the time of short plat application and a note shall be placed on the face of the short plat that reads, "All fees required by King County code 14.75, Mitigation Payment System (MPS) have been paid." Or B. Pay the MPS fee at the time of building permit issuance. If this option is chosen. the fee paid shall be the amount in effect as of the date of the building permit application. 14. A combined recreation and drainage facility tract is proposed. The recreation space shall be provided consistent with the requirements of KCC 21A.14.180 and KCC 21A.14.190 (i.e., sport court[s], children's play equipment, picnic table(s], benches, etc.). The recreation space plan shall be submitted for review and approval by ODES, with the submittal of the engineering plans. This plan shall include location, area calculations, dimensions, landscaping per KCC 21A. 16 and other general improvements. The approved engineering plans shall be consistent with the recreation plan. The final recreation plan shall be approved prior to the final approval and recording. A performance bond for recreation space improvements shall be posted prior to recording of the plat. 15. A homeowner's association or other workable organization shall be established to the satisfaction of ODES which provides tor the ownership and continued maintenance of the pedestrian tract and the recreation tract. 16. School Impact Fees-Lots within this subdivision are subject to King County Code 21A.43, which imposes fees to fund school system improvements needed to serve new development. As a condition of final approval, the total amount of the school impact fee shall be assessed and collected when the building permit is issued using the impact fee in effect at the time of permit application. Notes to this affect shall be shown on the final plat. Other Considerations A. Preliminary approval of this application does not limit the applicant's responsibility to obtain any required permit or license from the State or other regulatory body. This may include, but not be limited to, obtaining a forest practice permit, an HPA permit, building penmits, and other types of entitlements as necessitated by circumstances. Report and Decision L06S0006 B. Development of the subject property may require registration with the Washington State Department of Licensing. Real Estate Division Parties and Persons of Interest: BAPLA HARINDER 9501 S 207TH PL KENT WA 98031 BISJAK B.J. 18226 116TH AVE SE RENTON WA 98058 CLAUSSEN, KIM PROGRAM MANAGER Ill DDES/LUSD MS OAK DE 0100 DEHKORDI, FERESHTEH PROJECT MANAGER II DDESILUSD MS OAK DE 0100 DELAPPE MYRA 18221 118TH AVE SE RENTON WA 98058 FOSTER, CURT SR. ENGINEER DOES/ LUSD MS OAK DE 0100 GEO DATUM INC. 22525 SE 64THPL, STE 266 ISSAOUAH WA 98027 NEPEAN CHRIS PO BOX 59532 RENTON WA 98058-2532 WHITING, KELLY KING COUNTY DOT-ROAD SERVICES MS: KSC -TR -0231 DINSMORE, LISA, SUPERVISOR DOES/ LUSD MS OAK DE 0100 JAMES SANDERS, DEVELOPMENT ENGINEER ODES/ LUSD MS OAK DE 0100 Report and Decision L06S0006 Appeal Information and Parties of Record RIGHT TO APPEAL This action may be appealed in writing to the King County Hearing Examiner, with a fee of $250 (check payable to King County Office of Finance). As required by KCC 20.20.090 and 20.24.090, the appeal period shall be fourteen (14) calendar days and shall commence on the third day after the notice of decision is mailed. Filing an appeal requires actual delivery to the King County Land Use Services Division prior to the close of business (4:30 p.m.) on November 27, 2006. Prior mailing is not sufficient if actual receipt by the Division does not occur within the applicable time period. The Examiner does not have authority to extend the time period unless the Division 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 timely Notice of Appeal has been filed, the appellant shall file a statement of appeal within a 21-day calendar period commencing three days after the notice of decision is mailed. The statement of appeal shall identify the decision being appealed (including tile number) and the alleged errors in that decision. The statement of appeal shall state: 1) specific reasons why the decision should be reversed or modified; and 2) the harm suffered or anticipated by the appellant, and the relief sought. The scope of an appeal shall be based on matters or issues raised in the statement of appeal. Failure to timely file a notice of appeal, appeal fee, or statement of appeal deprives the Examiner of jurisdiction to consider the appeal. Appeals must be submitted to the Department of Development and Environmental Services, addressed as follows: LAND USE APPEAL Land Use Services Division Department of Development and Environmental Services BlackRiver Corporate Park 900 Oakesdale Avenue Southwest Renton, WA 98055-1219 Any party may make a request for a pre-hearing conference. For more information regarding appeal proceedings and pre-hearing conforences, please contact the Office of the Examiner for a Citizens' Guide to the Examiner Hearings and/or read KCC 20.20 and 20.24. Report and Decision L06S0006 --~I' I ,1 :I ,. ,: .!l-,,-::::, __ _ / .=_:~.-. ~---------------------~- MALHI SHORT PLAT PREUMINARY Sli0RT Pl"T SITE Pl.AN laJ1t 116TH A\/(. SE RENTON, W,._ 98058 •; r:='::::r= ATTACHMENT~-'--~ -,,,-PA"'G"'E~ OF·-.,,,P.,..AG"'"E;=-- .i.:!."' ' ' .· " ' ',; z-.. ~ .~ --I ' , !. 3: l> r-z • % ';, -~ m en 0 % • '-< 0 i :u N N z '""" " 0 m ----, ~- ® King County Road Service:$ Djvision Departmcmt ofTran$porteti¢n KSC-TP,•Q222 201 5Qvt'1 Ja<:bon street Seattle, WA SIS1C4-38StS June 20, 2006 Tim Hildebrand 22525 SE 64th Place, Suite 266 Issaquah, WA 98027 I ---'I ', ', , P<.C_ D.D E.S RE: Rgad Variance L06V0004 -Mallµ Short Plat -Related File L06S0006 Dear Mr. Hildebrand: Thanlc you for your application for variances from the King County Road Standards (KCRS). You requested variances from Sections 2.10 and 2.08 of the KCRS conC¢Jlllng the intersection spacing and cul-de-sac design for the proposed new access onto I 16th Av= SE. The KCRS requires 500 feet of intersection spacing along a minor arterial. A banunerhead turnaround is proposed at the intersection in the plat interior. We reviewed your proposal and agree that 268 to 320 feet of intersection spacing to the south to SE 184th Street would be acceptable. The proposed range of intersection spacing would allow the proposed access point or an access located near or at the north property line. The Department of Development and Environmental Servfoes' (ODES) Subdivision Technical Committee will be detemrining the exact interse.ction location. A minimmn of 350 feet of intersection spacing would'be provided to the north to .SE 182nd StreeL I approve a variance for the proposed range of minimum intersection spacing from 268 to 300 feet to the south to SE 184th Street and the resultant n:duced intei:Section spacing to the north to SE 184th StreeL The proposal for a bamoierliead turnaround is denied. There is a sufficient flat useable area within the site to provide a.standard 80-foot diameternnnaround bulb. The DDES will be determining if a temporary bulb can be provided. This decision applies only to KCRS identified in the variance request. All other design requirements in the KCRS and other regulations, such as smface water management and zoning, must still be satisfied for a land use permit application. The applicant retains the rights and privileges afforded by King County Code and adopted Public Rules pertaining to road variance processing (KCC 14.42, PUT I 0-2). This variance decision is valid fur one year from date of letter unless an associated land use permit is pending or submitted within the one year period. ln these cases, the variance decision is valid for the duration of the permit processing, ATTACHMENT~--Z..~- 1 QF_=-z.-· PAGE PAGE Tim Hildebrand June 20, 2006 Page2 A copy of staff's analysis, findings, and conclusions is ,mclosed. lfyou have any questions, please call Craig Comfort, Road Variance Engineer, T"iffic Engineering Section, at 206-263-6109. Sincerely, ~~~ Paulette Norman, P .E. County Road Engineer PN:CC:kc cc; James Sanders, P .E .. Development Engineer, Lond Use Services Division (LUSD), Department of Development and Environmental Services (ODES) Pete Dye P.E., Senior Engineer, LUSD, DOES Linda Dougherty, Division Director, Road Services Division (RSD), Department of Transportation (DOD Matthew Nolan, P.E., County Traffic Engineer, Traffic Engineering Section, RSD, DOT Falin Kara. P.E., Supervising fogineer, Traffic Engineering Section, RSD, DOT Kris Langley, Senior Engineer, Traffic Engineering Se<:tion, RSD, DOT Craig Comfort, P .E., Road Variance Engineer, Traffic Engineering Section. RSD, DOT ATTACHMENT .. __ 2-~~ .,,,2-7=~0F_ 2.... PAGE PAGE GENERAL NOTES CODE: 2006-IBC LIVE LOADS ROOF: VEHICLE: 300 PSF & H2Q -S44 SOIL: 3'-0" max to 4'-0" max per pion OTHER: SOIL UNIT WEIGHT = 120 PCF LATEf!AL EARTfl: 35 PCF EQUIVALENT FLUID PRESSURE {EFP)+100 PSF UNIFORM FOR RETRAINED WALLS + 2' SURCHARGE FOR TRAFFIC LOADS FOUNDATION SOILS REPORT AVAILABLE: NO FIRM: NUMBER/ DATE: DESIGN BEARING IS 1500 PSF. ALL FOOTING SHALL BEAR ON UNDISTURBED EAflTH OR COMPACTED FILL AND SHALL EXTENT TO FIRM BEARING WHEN POOR BEARING IS ENCOUNTERED AT ELEVATIONS SHOWN. MINIMUM DISTANCE OF BOTTOM OF EXTERIOR FOOTING TO EXTERIOR FINISH GRADE SHALL BE EIGHTEEN (18) INCHES. POURED-IN-Pl .ACE CONCRETE DESIGN CONCRElc F'c = 4,000 PSI IN LIEU OF A 4,000 PSI DESIGN MIX (BATCH PLANT) THAT MUST BE SUPPLIED TO AND APPROVED BY THE STRUCTURAL ENGINEER OF Rl:.CORD, IT IS ACCEPTABLE TO USE A MINIMUM OF SIX (6l) SACKS OF CEMENT PER CUBIC YARD OF CONCRETE AND A MAXIMUM OF (5j) GALLONS OF WATER PER NINETY-FOUR (94) POUND SACK OF CEMENT (4,000 PSI MIX). SPECIAL INSPECTION OF Tl IE CONCRETE (CYLINDER TESTING) IS REQUIRED IN UTHER CASE CONCRETE PROlECTION FOR REINFORCING: BOTIOM OF FOOTINGS: 3" WALL EXPOSED TO EARTH: 2" WALL EXPOSED TO WEATHER: 1-1 /2" WALL INSIDE FACE: 3/4" SLABS: 3 / 4" BEAMS AND COLUMNS (TO TIES): 1-1 /2" ALL CONCRETE IN FOOTINGS AND WALLS, SLABS AND BEAMS SHALL BE POURED IN A MONOLITHIC POUR UNLESS SHOWN OTHERWISE OR APPROVED BY THE STRUCTU11AL ENGINEER OF RECORD PRIOR TO POURING. ALUMINUM CONDUIT AND ACCESSORIES SHALL NOT BE EMBEDDED IN ANY CONCRETE. REINFORCING STEEL DEFORMED BILLE! STEEL ASTM A-615. GRADE 60, fs = 24,000 PSI UNLESS NOTED OTHERWI'.;, ON THE PLANS LAP ALL SPLICES A MINIMUM OF 40 BAR DIAMETERS. PROVIDE ELBOW BARS AT WALL CORNERS AND INTERSECTIONS TO SPLICE HORI/ONTAL BARS. PROVIDE TWO #5 BARS AROUND ALL OPENINGS WITH A MINIMUM UIMENSION OF ELEVEN (11) INCHES OR GREATER IN WALLS AND SLABS. EXTEND THE BARS 2' -0" BEYOND THE OPENINGS OR AS FAR AS POSSIBLE AND HOOK. PROVIDF ONE #5 X 4'-0" DIAGONAL BAR AT CORNERS. ANY WELDED WIRE FABRIC (WWF) SHALL CONFORM TO ASTM 185. WWF SHALL BE LAPPED ONE CROSSWIRE PLUS TWO INCHES (I.E., 8" FOR 6x6 MESH). REINFORCING PLACEMENT DRAWINGS SHALL BE PREPARED BY A QUALIFIED DETAILER IN ACCORDANCE WITH THE MOST CURRENT ACI DETAILING MANUAL. SUBMIT PLACING PLANS TO THE STRUCTURAL ENGINEER OF RECORD PRIOR TO FABRICATION. ANY GRADE 60 STEEL REQUIRING BENDS SHALL BE SHOP BENT ONLY (PREHEATING IS REQUIRED). COLD FIELD BENDING IS ALLOWED ONLY FOR GRADE 40 REBAR. ALL ASTM A-615 (GRADE 60) REBAR SHALL BE WELDED ACCORDING TO THE MOST CURRENT EDITION OF THE AMERICAN WELDING SOCIETY (AWS) 012.1-75, "REINFORCING SlEEL WELDING CODE", DATED APRIL 1, 1975. SPECIFICALLY, E90 ELECTRODES SHALL BE USED, AND THE BASE METAL SHALL BE PREHEATED TO THE TEMPERA TUR£ SPECIFIED IN THE ABOVE REFERENCE. NO WELD SHALL BE MADE WITHIN SIX (6) BAR DIAMETERS OF ANY BEND. ALL WELDERS MUST BE "WABO" CERTIFIED. STRUCTURAL & MISCELLANEOUS STEEL STRUCTURAL SIL[L, ASTM A-36, Fb = 24,000 PSI. MAXIMUM. ALL WELDS SHALL BE 3/16" MINIMUM CONTINUOUS FILLET WELDS USING AWS CLASS E70 ELECTRODES UNLESS OTHERWISE NOTED. ALL WELDING SHALL BE PERFORMED BY WELDERS CERTIFIED BY "WABO" OR EQUAL. ALL FABRICATION ANll ERECTION SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF THE AISC "SPECIFICATION FOR THE DESIGN, FABRICATION, AND ERECTION OF STRUCTURAL STEEL FOR BUILDINGS". SPECIAL INSPECTION REQUIRED FOR: 1. ALL CONCRE rE WHERE THE REQUIRED f' c EXCEEDS 2500 PSI. 2. REINFORCING STEEL PLACEMENT IN FOOTING, WALLS ANO SLABS. 3. ANY WELDED CONNECTIONS. 4. ANY EPOXIFIJ CONNECTIONS. MISCELLANEO=US=--------------- coNTRACTOR SHALL VERIFY ALL DIMENSIONS AND CONDITIONS IN THE FIELD. VERIFY THE SIZE AND LOCATION OF ALL OPENINGS IN THE FLOOR, ROOF AND WALLS WITH ARQUITECTURAL, MECHANICAL AND ELECTRICAL DRAWINGS. PROVIDE TEMPORARY BRACING AS REQUIRED UNTIL ALL PERMANENT CONNECTIONS AND STIFFENERS HAVE BEEN INSTALLED. DO NOT BACKFILL DETENTION TANK WALLS UNTIL HOLLOW CORE PLANK GROUT/POURED CONCRETE HAS CURED FOR A MINIMUM OF 28 DAYS. DO NOT COMPACT THE WALL BACKFILL WITH A DOZER. THE WEIGHT OF THE DOZER NEAR THE WALL COULD CAUSE THE WALL TO CRACK OR FAIL. VECTOR TRUCK LOADING ' "' "' N / 731 PSF EFFECTIVE I, --::;-1/ I DD DD I 7' 52,200# -t]D_ DQJ 10~ 12,800# 80% BASED ON POSTED 6500#GVW - 2'-6" ~--~·-···--· 1 S3 ... 166' -0" (INSIDE) Jl------------------------95_'-_2_"_(_SE_T_) _To_~_1_NT_E_R1_0R_W_AL_L ______________________ +-,,--------------16_PA_N_E_LS_@_4_'-_o_"=_6_"4_'-_0_" ______________ 1·_-1~ '.f 5' a" 20 PANELS @ 4' -o" =80' -o" 3' -o" 1 o' -o" 3' -o" 70' -o" I ·1 I ------------------ 3' MAX EARTH '· "' '. ... 2' MAX EARTH 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 23 24 -- ~'. ~ : ,r,~ . :-·· ·,-.: r~ .~ - . ·.. CIP ;.c.; .. 1. c . ' ' . ·~· . .. ' OJ . ' <· ··. "·. -.. ..._.., d .,_. . • . . <D 1·· ' . ""' ' ... " .,,, . • #5@12(B) ~ • ,,•. . '.__. ,_.:_·(61).~ ~ B1 3 7 • 0 I -~ "' / / 1 o· -o" 2·-0· r ------ I 1 I L ------ .. .. --•r• -- ~ FOOTING STEPS r ------ I _Lb I L ------ 38 39 40 ----- ----- -- ----- ----- . - 41 42 43 44 45 46 47 48 49 50 B __. 17 PANELS@ 4'-0"=68'-0" 1 S3 ----------------- r7 ----------------- ---""' -·-. -... -~·-*"" --... ..... "" .• -- ----------------- --------__! ---- 1 90' -6" SJ., --- 51 52 56 57 . I ' .. .. • I 0 ' . ' . I CC) .. ·,-. - 3' o" 1 o· o" 3' o" 15'-2" PT PANEL LAYOUT PLAN NOTE: SCALE: J"=1'-0" 1. SEE SHEET S2 FOR BEAM SIZE DETAILS 2. (T) = TOP, (B) = BOTTOM REINFORCING ' "' I '° --· ------'~------------ --· -----'~------------ • 0 I N - rn-•• .. -.. . . -- I I --· ------,---~ ------- I I WATER QUALITY STEP .......__..._~ I -------,--I------- I • "' I "' 166' -0" ALL WALLS ARE 1 O" THICK FOUNDATION SCALE: a-·~r-o" 4' MAX EARTH 25 26 27 28 29 30 31 32 - 58 59 60 61 62 63 64 65 - .... \ \ 17 PANELS @ 4' -0"=68' -0" . ----------·--- ------------- ·-·· ..... -··-·-ill· - ------------- FOOTING STEPS -------- 71'-6" . 33 66 --- -- - - +c 34 35 36 D __. FLOW OUTLET L.f-,,.,r . .,..,_.,.,_ .,1 .. ; . .,--@ SEE NOTE 1, #5@12(TEMP)(B) E.W. . ii -'." TYP 67 68 69 ----- ----- - ----- - ·· l,;1 r-. ·,. '" . i 1--'\'-I,,--\ D . ,(_• .· .,.~........, .. ,.. -:J:0 "::. .@ t"" ' . '""It: -~· 70 m· iSC,- ' I I I I I -·--. I I I I I _j '10' ·.@· . 'r--.· ' ·. ·."11 -1 I ' I _J .. ""' ~-"'"'""'' -1 I I ~J 4' -0" 2'-10" I 2' -6" - - 1 S3., 3' -1" -------------··-··-·· .. --···· --· .. -,-... .,_ ----- I I I I -" C > C C -C • -• 0 --i-·-.... " --------- I (X) 0 ' l "' ' ~ ... ,,_. __ I- <( w OJ __J (/) CL ..... I.C) -• 0 ::, ~ 00 0 I-> O'l <( Cl::'.: C <( 0 0 ::r:: 3:: I ·-I-..... co C • (/) Cl) ...-z ..... ....-~ -C ..... I Cl) ...-z __J Cl I") w co fl:: <( ..... ~ fif<;'t tl' ,i "/'7•",; . -Utf,., U '~ f 1 IAI ~ ., {(1/.. ~-n \·J1·· . ... . LI "-=' / .' ~"5-1 C' t~-cc_. , · '--' ,teJ ,/\1 D ,,,.1 ,,,~J €CJ QJ DRAFTER: Ronnie DESIGNER: MPM/Ronnie PROJ. ENGR./SURV.: MPM DATE: 10-29-08 PROJECT NO.: 05294 SHEET S1 OF 3 ,-----------------------------,-------------------------------------------------------------------------------------------------------------------------, 1-#5 , 1-#5-- o. ,, -"1'. • 0 ' . ' HO.ilZONTAL GARS FOR Wl1LLS l'IITI I A SINGLE Cci1TAIN OF REll,FORCUAEN I SHALL BE NEAR OUTER FACE OF WALL UNLESS OTHERWISE SHOWN DR ilOTED -f:ORIZOIIT AL BA.RS ro,, WALLS WITH A. QOUBiE CURTAIN Of fiLINFORCEwlENT SHALL 81, PLACED NE!\l,ESI l'A.CE OF CONCRETE '-N!,LL UNLESS 011 IER'I/ISE SHOWN ---------- --~----1 I "---I -#5 ~-f''V - --'1 vL ' ' - 0 ,·; /-1-#5 ,· .. :;, ' • . ' • • PL1\N - ' ;--1-#5 -- " ' I ·" I . - 0 ., 0 -~~~ : " 0 I ' J lo ,, ' '>-1-# -,_ I• -" [J4" A.CCESS MANHOLE W/ 24" ACCESS MANHOLE W/ 24" 1\CCESS MANHOLE W/ IIJOIT LOCKING RIIIG AND COVER BOU I OCKING RING AND COVER 24" ACCESS MANHOLE W/ S'x IO' Gl1ATtD i1CCLSS PANEL BOLT LOCKING RING AND COVER F1PFR KCSWDM SI/\NDARDS PER KCSWDM STANDARDS 1 BOLT LOCKING RlilG AND COVER -RIM -IJCIJ.66 r ~E 1 -MR KCSWDM STANDARDS / ~t1!1iM = 505.06 RIM --505.22 r PER KCSWDM STAND,~RDS ,, = 502.82 5'x10' CRAITO -ACCESS P/\NEL RIM -50·1 60 I -I R!M -504.20 ~l~o' ---,I 1.--11( ------------·-·}------'------------- ' '"'" f--------L 'i---_:.,. I --·-----~--J 1t;:::L:-:-:--2S)!JD !__2.5:'d,-0~ ',--,--,----,.,-,:-:-,-,--:-:-:---:--:----:-""7"~--:-lLe---.JJ__.,.,.,--,-IJ_Jj_j ---~----,-,--~-=-=,Jj1 i==~~::Jj"1' T'T; ':tt_-:5&-_ --=--___ ---------h-'-'.:_ '-,- ,-:r, ~·-,_·~· --·~·'--~-_·:~---~ .,,-~-·~· ~---·'--_-_, -'-· -'---'-.-'-'--'-~·,··_--'-'-· --~--'-·-'--'---=-~' __ .,:_\__c_,~'-'·c.· ----'-'-'--'-'--,· .. " , .--. -· . ·, -V ,v, _...,u _J! " , " ', ---· d ' •• < ·, :, ' '• • ~----~-~---. -- --_ / 498.60 , l?n,--. _-· __ ---. -,--_-_-___ -_.,.._ -,=,---. -,.,.,-__ "'_ --,-,+-.,.u.,-.,,._ --...,..,_.-_ .----~, _-_-,---, -,,,--_-• .,. __ -,-,--._ -_ ~-, _,.__,,_ /498.60 501.50 ________ [=PROPOSED_G_RA_ll_f __ --e--- -------------------- I _---IIAX-1'/i;fEiF-siji'fFACl ELEV' :_: 49[; _ I O -------------r----------' -----------------------------------------------------------------------------------------= -----------------------------------------------------------------------------------1----------------------------------------------------------------- --FOOflNG t , BAFFI t: -~ i --2.50' LIVE STORAGE _ _ -DRAIN ~----0.5 FREEBOARD WALL _"-. __ : -----=----'=-----------__ . ------....................... --" ........... ,_-_ . __cc ,_, ........................................ -...... ----............................... --........................ ---.. ,, ___ -----------.............................................. ----......... -......... ,, ............... _____ ... ,, ............. ---... -... -::-.: ............................................. ,, ....................... -.. -....... --........... ,, .......... ,, ............ ,, .......... ~-----.. .... ; = () aoni1tEJf-_Ll';f93SJ~RAGE --------·---= -------= -------------49160 -----' = ----------------------1---- 5' \"AT 0 R QUAI lrY SfORAGE [ '·--: .• " ' · '·,_. ·, , ,' ·· __ ,,·:._ ·--· ----· __ .. • •·· -, , - -C y L ' --' ' --t. ' -' ' ' -.r_ • •. . • • ·-.... : •; /. '--=--Biil6~!~EOFEL'~~T-E~-~~;L~i/t -------j -------------------------=-------------------= 49i25/ c, \ 487.83 L' AVERAGE SEDIMt NT STORAGE @ ~-487.25 --------1 f-----------------------166' ·----~~---------------------------------------------·"·------------------·--------------------------- SECTION A-A 24" ACCESS '·AANHOl_l W/ BOLT LOCKl!IG RING faND COVER l'ER KCSWDl1I \ STAi1nAR0S '\ RIM = 504.98 i--1 :i--! ' ' " ' ' : ,: ; '-. ' ' '. ' ' ,_ ' ' , ' ' ,--------~ . ' l ' • ... ' } -----------------------......... _____ _ - ·-: ·, : ,; ' ' .. ' ' . , . --------5, -----------------w ------7~ __.j1o ,,• ' .· . ,. ,,_" _. -' '· SECTION B-B 496.10 :i'x1 o· GRATED ;,,c:cr:ss PAl,EL 1 RIIA ~ 501.60 I 24" ACCcSS MA!IIIOLE W/ BOLi LOCKING RING faNIJ COVER P[R KCSWDM Sf;\NDA!1DS RIM = 501.50 /498 60 ' ' II-I . -.-_-. ,.! ' ' --' ' '·· ,-. -~ .. ' ·.,.,·.· r---'---~----~' ~--~---~~~~~ ----1_:-t -------_------------------------------- 0 493.60 0 5% ~ --- 488.60 ' ' •, ' ' ·-' . ' ' . '. ' ' .,; ' ' . . ' . - SECTION D-D ,_T_Y_P--WA-LL_R_E-IN_F_. A_T_W_A-LL_J_U_N-CT-. _S_C_A-LE_N_T_S~,-1--+--VAUL T SECTIONS SCALE 332"=1' 2 /c.,r--#6 TOP \ (6)#SY.l 2-o \ ' ' '.__ r \ j ~ #6 BOT I ' 6" (;,) ;x r:;-:-cJ" L/3 ~ Jc L/3 @12"0.C. L -• ELEVAllUN 10" WAL'L @ ~II~ SECllOfl --~ 0 W///4 LJ + L +J ,»12 0 C-\ I /\ ., \\\ 1.-,_. CJP. SLAB, OMIT @ Sll\1 SECTIOll 6' -0" (11) #6 COIIT.--. ,, ADD #4x i6" @12··0.c @ SIIRRUPS ,, ' '-D I (8) #6 CONT. --. . . ., •} . ......._ __ /\ ~---,_ ",, . '• . '' . ' ,] . . . '' • • /\ \,\---_._--- ' - '' ·". "' I - ~ ....____ ' •'J ! 0 ·-~·'---'~--~'-,~--=-'-·~--~·C-~·-L'~· -- ----3 __ '_-o_" ___ ----_--_------______ ~~ \ ---#4 BOT STEtl SECTION A-A ~ #4 CUNl. pg17 ----------~-----------y-------------------------------------r-------- 31_011 ' , -_, '" ' . ,,· -t -STRIP FTG BOTTOM STEEL I . ·i . w' ' J ' J ~~e ;:-;,.-:C---~ ::-", --:-;--~~ , 1-" 0'' " ' ' ' -, X 12 _, 12 TO M/\.TCl-1 NUMBtR AND SIZE OF LONG BOTIOM BARS '----- 31.011 '· '~ . ' . ' -' ·' <· .~ 1 '-0" " ,· ,· ' 0 4 STRIP FTG BOTI OM STEEL - ' ' #4 @12"0C EW [J ' W/ #3 LJ +L @12''0.C.- • • . -. :'.l • <J • oXIO GR/,TE SUPPUR 1· WALL 3) #5 CO~T. #4 @ (i"O.C. SLAB STEEL /·· • "} . il ._,,., 'r'°'J . -I ' n . -,'_1· ----+-----1-,---~--j ()) #6 CO!IT.--c:::•=="=;=-=' :,"=:::=:":::::=:'..J" M------i ____ ----'\. I 2· --u" J-CiP BOTfOM STEEL pg14 FOOTIN--G-S-TE_P_A_T_S __ U_M_P_S_C_A_L_E _~"-=1-' ~3-+--S-E-CT-IO_N_B_E_A_M_A ___________________ sc;ALE 1 "=1' 14 0 I ' "'" 0 I -- #5 @6·' - #5@12" BOI. ,, ' ---_:::. ~~-------- ' ':- • • • • • • • • / ,3) fo CONT. #4 x 6'-0_"__ @12"0.C. 11'-o" -1 "0 PVC AiR VE:NTS @ L' -0" O.C. W/#4 [ J+[@12"oc 8) #7 COIIT. pg22 #4 ©12"0.C. E.W. E.F.--'1 (9) #6 CONT. ,j 1 O" W,\IJ FOR GRATED PfaNEL ACCESS --(3) #5 CONT. -#4x6'-0"xl'-O"@ S"O.C. • • <! ' .d • • • • • • • • ' 8 I • '° I t-o·· I -\ 'C#-1 @6" )'---------------)' -#5@12" BOT. (IEMP STEEL) SECTION BEAM A 1 1 O" W/\.LL FOR GRATcO Pl,NEL ACCESS (OMIT @ SIM SECIION) (5) #6 COl!T.- W/ #, o+ r @12"0.c_ • ' ~1 -' . (j) #5 CONT. • ,, • • • •J ,[,_ -, •' • • " • d 1·-10" l --------,, pg20 SCALE 1"=1' 5 '° I - ~ pg28 11 ' .,, O"xl'-0"1"' tf,)XLi -0' ' lC' I I - ~ j ' ' ' ' (3) #5 COclT. '''"0 C ,L , , \ I • • • ' • '\--------- a ' ' • w; #l LJ@12"o_c_ ,:l •' ----{.3) #5 CONT. • ,,,__k __ 2_· -o_" _ __ J SECTION BEAM A 2 SCALE 1 "=1' (2) f,5 CON 1.---\ //5 @ }4"0 c ___ -~ __ r4 " 1 r POcR SLOT / . @ 2' -o"o.c. 1-L---L-'-_ 1 z 7-·--',,----"--~--+---'----' • pg27 6 \) T '\> --<} • • 2' -0" ,,___ _____ ---... --------,, TYP @ VOIDS W/ POUR SI_OTS 1 o" • • ,1 ·--------~~~--7 1" '" CO"T BRG 4X5.,,,, · SIRIP, EA. SID[ pg34 ~-+-------------------------~--+-------- SECTION BEAM B SCALE 1 "=1' 7 NOT USED SCALE 1 "=1' 8 SCALE 1 "=1' 9 SCALE 1 "=1' 11 SECTION BEAM B 1 SCALE 1 "=1' 10 SECTION BEAM B2 SECTION --------------------~--1--------------------------~---1--------------------------------~-t----------------------------------'----t-----------------------------,-L. • SEE BE,\M - DETA.IL 7 \ THIS SHEET .. • . . . -• . . ·• . ~-. 'i • <, .. ' ""-.. •', .. IO" W,\LL #5.@ 12''0.C. 0 X_i L N 6" 1 "0 CORE - GROUT CELi. SOUO __ , ' • • SECTION BEAM B @ STEP cl_c so2. s4 #5@12" E.W. ET. ELE. 499.64 PI PANEL -- pgi8 SCALE l"=1' 12 EL. 491.60' 'i ' • • •,·;"'., c, f------.,ii ---~ ,.' - • ' ' ·~ #4@1 t·o.c. . J E.W. E.f. ,---, --. ---- .. --· .. ,,\_ ----~ t~ 0 • ' ~ ' I '° -· • ' EL. 487.38' ·---------'---------;:;--.. -, • , ' • ' • « -' . -- ~ SE E D[TAIL 1 SHT S3 &2 FO R RElr!F. --,, • "! _., DET. WATER QUALITY STEP SCALE l"=1' pg33 13 (3) #6 COi.if _-- #4 x 6' -0" @12"0.C. ' ~ ( 1)#6 TOP x 12' -0" @ CIR OF 'NAU_ ·---x::::::;==::;::=:':);~::::::;r=-=---• o Oe O O• • • JI l@12"0.c__; / ---- (7) #6 CONTJ SECTION @ 18" SLAB • • • • • 2·~10" I --, ' ' _______ ,J, ' <D I : ' ' pg26 SCALE 1"=1' 14 ' "' I #4@ 18"0C - • ->- 1-• • #5 @ 12" 80T. J (1)#6 BOT - (7) #6 TOP -, \") • • 6" I • ', 6" J ~ • • • 1 o" #4 @12"x -1 r TOP -' • • -'a ,-I --- ' • • ~---\= #0@12"0.c_ ' <O -COIIC. BEAM, SET I DETAIL 1 6 - ~ ------ pg26 ('./) #4 COllT. #5x6' -()"@24 ··o_c_ - ""'--,---- " / CIP SLAB /\ l ,~------' /~]].~---:~~-COLD JOINT (2) #5 C011T_--/ ' :;f;' 0 I ' • • '-D #-l STIJRRIPS 1 @12"0.C. · (2) #4 CONT_./ •! /t', =='=~---- (2) #6 CONT____.../ I • I 1 o" )'------ pg8 -1---------------------------------r--t-----------------------------~ ~--- SLAB JUCTION @ BEAM D SCALE 1 "=1' 15 SECTION 4' BEAM D SCALE 1 "=1' 16 -- z 0 V) >' w' "' -0 0 > +' m, 0 I -+--""'-i----,---t--- ~----- 1- <t: _J 0.. 1- 0::: 0 I (J) I _J <t: 2 LJF,AFTER: Ronnie i ' I DESIGNEI-<: MPM/Ronnie 1ccROJ_ E1NGR./SUf,V.: MPM DA If-: 10-29-08 F'ROJECT NO.: 05294 SHEET S2 OF 3 1 ,---------~-----------------------------..----------------------------------,-------------------------------------,----------------------------------------------~ #4x [_@ 16" o.c. 6" EA FACE 2x4 CON r. KEY (T(I '.) #5 © 12 SH011T (6) #5 LOilG .. ' 0 ! - o, _) () 2'-4" J6' -8" DIM 1----,c',-,'"'-;,c~--•s---0 0 'NALLS " (2) #5 CONTINLIOS El.E\/1\TION VARIES 1 • • -~ -(2) //5 CON I lf!UOS TOP .• ' -'-/~,-=--~--#4@ 16 EA. FACE • . ' , • ~ #5 @ 6 VERT. INSIDE f-ACE / . • • ~ L.J O 0 I ,.J -[~ ~ it WA.LL AND FOOTING .1 --ELEVATION VARIES -· #4 @ 12 E.W. TOP & BOTTOM () LO NG WALI __ AL_O_N_G _A_& __ C ____ S_CA_L_E ~" = 1 ' j 1 (2) #5 co,~T. TGP 12" O,C. #4 @16 EA. FACE- 1 O" Wl,Ll. #4 @12"o c. EXT. F/\.CE _ #4 L@ 16" o.c. _ 0 • • • • / . . / • • ' • Fl111Sfl GRADE / ELEVAIION VARIES l_ ---Pl SLAB ----~ -~-. ___ #5 @ 6 VERI. !NSIDE FACt CON r. KEY (IYP.) (4) #5 CONT 80110M #4 @ 12 FW. TOP & BOITOM 0 ! -- -_-. ... • • . /J • --'--~-~,_._ ____ ) J,_ 1_' --3 "----c,l'---1 '_-3" ___ J '-WALi .. AND FOOTING SHORT END WALL ALONG 1 & •• 2 ., • • • 2'-0" Y---5 > X @ 12" 2' -0" #5 @ 12'' O.C. ··--.~ .......... ' '' • . ' • ,., . #4 © 12'' o.c. E.W. ll.EV. 500.20 - (}) ,, • j ; ' . " " • -· ., FOR FTG ANl) 'NAI i_ SIZE AND REINf. SEE DEIAII S 1 & 2 THIS SHEET SUMP BOTTOM OF PT PANEL \ (2) #o C:OflT. " , ,, #5 x4' 5' @ 24~"0~C-+ \-4 f ;_· --PO_U_R-SL_O_T_@ 2 --II O.C. ,.__ -, ·---~--=-~:,. I __ , --'_ ---'-'-' ,. ~----""'c:-,~"~~-~-L7_ ]=-----.• --'-'--"-·'--"---i. ' --_;~ _________ Jo . ' ' "" "' .,, • • 7 z::r ~.--. PROVIDE 4"x8" HOLE:; THRLJ WALL @ 4'-o"o.c. ~: ~ ,, . (" ',., -~ -~~-~ VIEW A --------- . . f-.... -"""' 10" WALL- ~" #4 @ 12" E.W. TOP & BOTTO,~ -~ .. ' ~· --1 #4 @ 12'' EW .. EA. !'ACE ,, ~ w o 0 -#4 @ 12" E.W. TOP ., • ' ! - ('-J ~ 0 • Is; I -• • 'l '\s---'\.-·==:::;:===-: .. ==··±: '~~=:::--:;=;,c:::::~=J=. J=~-~~,~~~;?,t=--_=,:;:.===::;::::,:::::=-:;:.== t= • • Z1 ,; • , • q c:. • I'.' ,i.__ --'''-' --"'- ,4 <I ,-"; • ---"~--''-& -~,~-~~··===t~=====-¥-,r-c--;-:-'--''--'--'----' ' L, • :-• ' .-,q-;) ~ ;ii -__:;c===-"'----;-----'·'--· -·-----1t· 'i_(_1'-1 -J -//_s_1~0-c1_G _ __;_;f· ,_. -1--'~=.-=·=·=· ===~· 1 #6 @ 6" I ., ,, ---------,i'--,1--_______ o O I -------------i, 12'-o" , ., o" L. ~---------·-,i' 5' -0" -----it-i-,A-LL )I\D FOOTING . __________ ,, Q _) 0 ' C) pg3? t 1-·-TT ___ . --:1 --i--+ I SCALE i "= 1 'Q+ __ S_ E_C_TI_O_N _T_H_ RU_ SCALE ~"= 1' 3 SECTION AT GRID B SCALE ~"= 1' --------------------------~---~--+------------------------------------------------~ ----~---l 4 l~t!S?seM!$ GRATES No. 5G1G. ll~D :hs ING~E FRAME ~o.561Q "--..... :o X 4" X 1//' "./-· GRATE NOT USED '• ,- 5610 Grate and Frame / ., SCAl_E ~ITS Jsl -1· :3 1618 E t'>,1ain. P•..:yaflup, 'Nashington 98372-314211 Phcne: \25.JJ .:J48-i551 ':!J Fa:,;; (2.53) 84.5-0292 ' Ii 1 I ti I ); 1811 '24 1 ' \ I ,· • .,_ ···.;;· ----i,..;. ,. '. ' r ' '36" I ' I F . I• .;• -· .... . ' '" · 1 .. . .; ·. ~ :•+---- -':r ~; .' l _·.: I :~I-- •.'. I ... _ .... .. ' . - , .. -I ' 12 (Typ.J ! ·. \• Ll . . ·, 1 -ccn,:eo.c i: ic c.cne I \ 3VaiL.c1ble, 1,.hen specified: \ ' > .. . .. l' 10 5' r i: ,. . 1 ··:": -1.·. -r .. · . I ·.:• /:i4 i :: ": ; ,: ·.' . i:i " ,r-D ! ' 'f .· ~ . • • I • I ~ . ·.. ·, ., .;• .. \ ! r-,: :~, Ji; •,J .. " ;• --~ ... I . --I Coniir1Bd (l . .... ~ . JoJm . . ' . . . . "--.,.., -' 2· -. ,. . . .. . . r-- '"I,.. ..j,. .,. ---------------·--... --- i 48" PRE-CAST L_ MANHOI_E FLATTOP SLAB REINFORCING ~ #5 C·.iformed rGbar -~ound Or Reotenguter centsr, slock i!em. MANHOLE WALL REINFORCIN( -Minimum 0.120 l'.;q. ln./llnl!le.r rt, -St3paratsd b~s~ sHtb, stock ham. BASE SLAB REINFORCING -9,19 :3q, in./linesr ti. In both dlrGotloti, HOLE OR K.O. Dl1'1ENS10NS ~ Ms.xlmun hole sfza !s 35~ a· Minimum at1tGr1ce b.:atw!\l~n 11olij$. 2" Diameter IHUng hola'3 prqvlde-d. CONF0Rtv1S TO: ,A,STM C4 ia Manhole .• ASTM C-443: Aubb"r Gasket Join-ts W"ilhlnton S!ata APWA!WSWOT \Standard Specifcat!ons) . -Seattle E11i;iine'Jr!ri9 Dept. for Rainforc:!ng whan req~Jirad. Type :00. I Seattle -WS))T B-23.a.., s-13c Prlc•1 F.0.B. within 50 milElc1 in lnJ,:.11: 1ir1d 1~1il•t quul!ltla:! wMt~ acca6-'11bl-u \lndar awn powar. Unioadln~ ~,, unlta und11r 12.aJ(JO Iba. R1ii;urmid lti.tm-1 •a ~objl!ICi to !l 15~Q rnir.lmum rnatcc~ ch.llrgEI. r' 1:111 aub ec:1 chE!n e wunoU\ no!lc•. PRE CAST MANHOLE SCALE NTS SCALE 6 CIP r I i ' 111:cf=t==l 1 ==tt====t;:y/' , 'Is------------r+----, ' MAN~10LE PLAN -,. 2' -0" IAl,X. ,,------:f./ EXTENT OF 1 . MANHOLE 01~. VARIES / .. I 4 -GROUT n.A.MS 111 CELLS -#S R,RS x~- " sLJ3 o· (,J I 2'-3" #4~_J -· 24'' m,. SCALE J" = 1 ' ,,-(-ft~ -t-~~-=-=z::_='=~ -~ ~z~ '---t-~;;.==;;:=~--fz=--y--T , (2) #4(::, ,:) (1.J... " , '-.. 3) #4x ' p·· " c, . ~ ' ~" "1 " _l "~ ~ I IO" CIP WALL ,, \ #5 -#4 SECTION T~1RU MANHOLE OPENING SCALE 3"-1' 4 - 7 10 NOT USED 10" 5'-0" OR 10'-0 CRAil 1 o" ~----+--··--,,,, ___ _,f J Jl I ., 0"(T~ _'-. )':'.,'-V ----- / //.//c .. -'/ //"/ i-/\ ' " LJ_ ' "" ••• ~ GRATE / / ' 7 / " • ' ,\ • ' • // . ' ' / / • ' . ':z::::":_ ,,_/_~_/f-·- l PT PLfiNK OR CIP /· -~ • ' ,; -1 (: .,. • • '' • • -· v ' SEE DETAIi 5 Tl ilS SHl . #4 @ 12" t.W. E.F. #5 @ 8" HORiZ. - #lj @ 8" VERT . •• J • •• .(: ' -4 • • • WALL REINF. AT GRATE I/I/HERE CONTACTS WALL • " • ", SCALE 3"-1 ' 4 - #4 @ 16" HORIZ. #4 © 12'' VFRT. pg9c SCAL.E 3"-1' 4 -- 8 1 1 z 0 1n > w 0: ' . - " 0 >. c' 0 f- <( _J Q__ f-- 0:::'. 0 I (f) I _J <( 2 DRAFTER: +-' :::J 0 > C 0 "-+-' C Q) +-' C Q) 0 w (I) DJ lD ·O w co > 0) <C ::r: <C f--3 (D ..-z ..-0 ..-f--..-z n w DJ et: Ronnie DESIGNER: MPM/Ronnie PROJ. ENCR./SURV.: MPM DATE: 10-29-08 PROJECT NO_: 05294 SHEET S3 OF 3 , __ I I l ., ,, ! i-------. ·--· "·-... 5' 8 j1~1 I I I LO-I 6 J,967 S.F. , OT r:; L, < '-'" 4,715 S.F. I I ------------------------------------------------------' 103.38 I[ I I I I ________ ! _________ --- @]) -I '- 21 + {•ii N C, --, I W1-J,fJ ,, ~~It:& / f,' !Jell \114.>!() &Ttc ~ -----------------------_I -'-------------------------' --l--------~--- Street Light Tables SL# -1· AG# GRID# POLE ---- SL 1 EXISTING PSE WOOD DISTRIBUTION SL2 EXISTING PSE WOOD DISTRIBUTION SL3 EXISTING PSE WOOD DISTRIBUTION ~- SL.4 EXISTING PSE WOOD DISTRIBUTION ,-----,---- SL.5 15' GREY OCT CONC EXPOSED AGGR. SL6 15' GREY OCT CONC EXPOSED AGGR. SL7 15' GREY OCT CONC EXPOSED AGGR. MH LUM IN AIRE - 20011\/ HPS 25' COBRAFLAT 25' 200\"I HPS COBRAFLAT - 25' 200WHPS COBRAFLAT 25' 200WHPS COBF<AFLAT 100W HPS BLACK 15' DAYFORM 15' 100W HPS BLACK DAYFORM 15' 100W HPS BLACK DAYFORM - THIS SYSTEM WILL BE PSE OWNED & MAINTAINED. ALL INSTALLATION cos1·s AND MONTHLY CHARGE WILL BE PAI[) BY THE DEVELOPER AND/OR HOA. *STREET LIGHTS MUST BE INSTALLECI WHERE SHOWN ON THESE PLANS. WATER, SEWER, STORMWATER, AND OTHER UTILITY APPURTENANCES WILIL BE RELOCATED AS NECESSARY TO AVOID CONFLICTS WITH SPECIFIED ST',EET LIGfiT LO~ATIONS. STA ARM OFFSET 8' 8' 8' 8' N/A NIA N/A -' DEVELOPER MALHI SHORT PLAT MALHI SHORT PLAT MALHI SHORT PLAT MALHI SHORT PLAT -- MALHI SHORT PLAT MALHI SHORT PLAT MALHI SHORT PLAT KING COUNTY DEPT. OF TRANSPORTATION traffic ISnglneorlng Section Approvals Traffic· ·Engineering approva1s·8ppiy only to the lnsta118tlon of SL 1 through Sts to lllumlnate fha tiew Intersection to· Klrig County required llght levels. App'ra,ial dcia·> not apply to details oflnstallatlon. PSE to own & malntalfl all poles, arms & flxt.ums. I INTOLIGHT STREET LIGHT NOTES ---------------- ALL STREET LIGHTING POLES ARE TO BE INSTALLED PER STANDARD 6375.4800 (page #2) IN THE "LINE WORK PRACTICES MANUAL". ALL POLES (WOOD, CONCRETE OR FIBERGLASS) ARE TO BE SET PLUMB AND EMBEDDED TO THE GROUND LINE MARKED ON THE POLE. BACKFILL AROlJND POLE WITH 5/8" MINUS GRAVEL AND COMPACT IN 6" LIFTS. (PEA GRAVEL AND NATIVE SOILS ARE NOT ACCEPTABLE.) APPROXIMATELY 1 CU. YD. OF 5/8" MINUS CRUSHED ROCK WILL BE REQlJIRED. THE DEVELOPER IS REQUIRED TO SUPPLY AND INSTALL PLASTIC (NON PAPER) STREET LIGHT TUBES (MINIMUM 18" DIAMETER) TO AID IN THE INSTALLATION OF THE STREET LIGHTING POLES. THE DEVELOPER MlJST ALSO SUPPLY THE REQIJIRED 5/8" MINUS GRAVEL A-r EACH STREET LIGHT LOCATION. IN ALL SHOEBOX AND COBRAHEAD INSTALLATIONS, THE LUMINAIRE MUST BE LEVELED. DEVELOPER MUST SUPPLY DURABLE LID/COVER AT EACH STREET LIGHT TUBE. Plan View Detail of Street Light Tube Wire Errlrance Slot Street Light Tube Field ~Side - "- 45" )----1 Roao 45a -Side / / Wire Entrance Slot Poles shorter than 35', use 5' tube. Position 3" x 6" wire entrance slot 45 degrees loft O' ,·1,1h'· from • l>oo p0 n, ~r.d'c•JL,.-fr, '"""'d· ...... k"'·· . cs ..... ·';'·,'···'··-_ _,,-x:, way through center of tlbe. STREET LIGHT TUBE DETAIL Vicinity Map 18" -24" Minimum Depending on Pole Type Poles 35' and longer L,,..;.., -p ... ·b··· .C>~, Cli U, THOMAS GUIDE PAGE 686 E-1 PROJECT PHASE NOTIF# ORDER# -~~,=~-+-~~~---1----~--, PWR St Light X CIC Relocation Removal CAB~ETV PHONE Project Manager Contact Information: STEVE AVIS 206-999-1514 C6ll Phone ~-----------------~~"~-"'-CALL (800) 424-5555 "Lo<.ates Required" Yes No "Outages Required" Yes No '"Flagging Required" Yes No 2 BUSINESS DAYS BEFORE YOU DIG UllS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES REV# DATE BY DESCRIPTION REAL ESTATE/EASEMENT PERMIT ,-----+---+-----+-~-------------< 5 NIA 4 FUNCTION CONTACT PHONE NO DATE f----+---+----+------------+-------+-,.--:,:=,,=.=l-=:=-=-::-::":"=7.:'"1---, 3 PROJECT MGR J. KENNEDY 206-604-3348 2 ENGR -POWER "'1· HAMMONsl 425-456-2602 1 COUNTY KING 1/4 SEC Erner Seel Gas Wk Cir POWER WK CTR SKC-SVC OP MAP F'LAT MAP U-MAP NO (POWER) CIR MAP NO CIRCUIT NO ENGR · GAS DRAWN BY CHECKED BY APPROVED BY FOREMAN #1 FOREMAN#2 MAPPING JOINT FACILITIES ARRANGEMENTS M. HAMMONSI 425-456-2602 12/19/07 UTILITIES f---------f---------f--oo---------+------------1 CONTACT>---------->---------1-----------+-----~-----, PHONE# PUGET SOUND ENERGY DESIGNED BY INTOLIGHT MALHI SHORT PLAT STREET LIGHT OESIGN 18311116AVESE RENTON, WA. 98058 INCIDENT N/A MAOF' N/A LI n", ,"•r-'------1 SCALE 1"30' PAGE 1/1 i ,- ' 2 Cl. 0, 0 0 "' •. ,. '• ,., '" s 0 "' 0, N ,n ~ 0 0 er n I 0 L w 0 C ~ C '" / 10 0 ~. N GRAPHIC SCALE 10 20 40 L I I 1 INCH ~ 20 FT. LOT 7 ' ' ·-· _, ' ---' ------1 ' I' I I I I I I I I I I LOT 6 '-------------. ------ LOT 5 L--- I I _ _/ I I \ \ \ ) I I I I ., I I I I I I i I I I I I I I I I I I I I I I I I I SE 1 / 4, NE 1 / 4, SEC 32, TWN 23N, RGE 5E, W.M. - I ,, ·-! ~--. LOT 4 - -· ·1 I I I I I I I I I I /--I -. ' ' I I i I I I i I I I I I I I ·-- •., / / / -- LOT 3 ,_ -- _c::-----1- / / ! I I I I I I I I SE. 183RD CT. (PUBLIC ROAD) 11+00 1-· --·--- ~ • SIOEWALK RAMP TO EXISTING GROUNO CURB AND OUTTER/EDGE OF' f'AVEMENT ·---'0t ,,,-· -~---~~ \ ROW r------- I I I I ! I I I I I I I I I I I LOT 2 • .,. ---l ! I I I I I I I STA: 10+50,00 16" PLASTIC $TOP LINE LOT 1 ', \ \ I I I I I I I I ' .. ': .~t~':;;~~t~, -- ''.t·;;.·· _____________ ,_ ___ ,.J.....__.._._ ............... ,.. -;-·-,-4·'"¥'-aa· .. ·· ____ ._ ___________ __. --------'------'----------------' PROJECT SITE R/W 6' SIDEWALK --i-.~ 42' 22' 5' BIKE LAN 11' TRAVEL LANE SIDEWALK RAMP TO EXISTING GROUND f.l ___________ F_:U::_:T.:.U.:.:R=-E ..:C-:.:0::_N-.::SccTR-.::U:::C:.:T._,IO::_N:.___, _______ J l R~ 30' -!-------,----------'=-=-------------,..! 22' 6' (1/2 OF 6' (1/2 OF 11' TRAVEL LANE 5' BIKE LANE CENTER LANE) CENTER LANE) e----~f----------+-~-- 116T~·I AVE. SE. FUTURE R.O.W IMPROVEMENTS SE\;JION A_ . N.T.S. NOTE: FINAL CHANNELIZATION TO BE COMPLETED . WITH FUTURE ROAD CONSTRUCTION ON EAST SIDE OF 116TH AVE SE. 6' SIDEWALK I 11.9' ' "· i I K.C. D.fJ.E.9. ,r-STREET LIGHT -1 i : STA: 23~.31.2B i 10.44'LT EGIN 4" \\tllTE ' EDGE LINE 10.3' 10.3' ,1,3! 0.11'LT B GIN DOUBLE YE ,-c...-ATCH E. CHANNELIZA 11 LLOW CENTERLINE ON • _ ~STREET LIG ' • I • . I HT • 0 0 STA: + ' 22 99.53 "' • 10.0'LT ND ,.._ .. N • l'IHllE EDGE Lit E I I STA: 2 +99.53 O.O'LT NO DOUBLE YELLOW CENTER LINE 10+00 --8·,· O.OLT ND DOUBLE YELLOW CENTERLINE ~ ~1 <( o: STA: 2 +34.29, ,c t---+--'-iiof.1l'.1r.'L~B~EG~lf,fi' ~4~• ~W1-=1=1TE i!: I EDGE LI E <O~ -.- 0 0 + N N !5 "' " 0 "' ~ I~ j v, lr-.,c1.:c2·-+..:.10::;;·c:,3'4-..:.10::,:,:::.3',_::4·:.:_1',.... - 2'' \ \ I ',1 ' I, I . 30' ' -·< ROW 1- i:'i ,.., !!: ' < tL STA: 1+65.18~- 9.78'L END f,DGE LINE 0.48'R END tlOUBLE YELLOW CENTERLINE MATO~ EX. CHANNELIZA TJON GENERAL NOTES I. CONTRACTOR SHALL NOTIFY TRAFFIC ENGINEERING (206-296-6596) AT LEAST 10 BUSINESS DAYS PRIOR TO STRIPING TO COORDINATE CHANNELIZATION LAYOUT AND SIGN INSTALLATION. 2. ALL CHANNELIZATION SHALL BE INSTALLED IN ACCORDANCE WITH KING COUNTY ROAD STANDARDS. 3. EXISTING STRIPING TO REMAIN SHALL BE REPLACED WHERE DAMAGED OR OBSCURED BY CONSTRUCTION ACTlv1TIES, OR WHERE FADED, AS DIRECTED BY KING COUNTY. KING COUNTY TRAFFIC ENGINEERING ENGINEER DATE Z/ z.'·-f o1 DATE DATE L_ --- .. ~ ~ ~ ili ili ~ ll ~ l:l ~ " 8 8 "' "" ro aJ 0 .\2. ' m N ~ ..... ' "' "' I-< z -' <C Cl. _J 0. I-t5 a::: 0 F < :r.: N V) _J w -z I z. _J <( < :c 0 ~ V I >- w > "' ::, V> ~ "' >-z w ::e "' 0 0 1/l w 0 Cl 0 "' "' 0 ' m N ' m w (/) • ~ <C j!: <O ~ .- ,- T""' I") co .- ·--, ;t, ill, "' ,n >->-z z w w "' "' "' "' 0 0 0 () "' LJ1 w w 0 0 Cl Cl 0 0 y " OJ 00 0 D " " "' "' N " ·-.... --'-.. 0 ,-·-,,. -I -- OCI Ii) 0 w O> <( :3: • z f2 z w a:::: DRAFTER: PG/CDM DESIGNER: PG <D * "' >-z w ::e ::e 0 0 "' w CJ 0 0 "' "' 0 ' ,o ,- ' N - PROJ. ENGR./SURV.: CLG DATE: 2-17-09 PROJECT NO.: 05294 sHEErC1 Q Qf 11 0 w > cc w •n w er en f- I C') ,r -" C "' u z ' 2 co f- "' D 0 '" C') "' 0 0 '~ (iJ I t'~': _.,,r,r,r·11' " ~--. "i ,, ' -,_ w - L() .. C l..1J /- c )}- n ,/ " a ~ . " N GRAPHIC SCALE 10 0 10 20 ~ ;I I 40 I · 1 INCH -20 FT. 1· I I I I I . 1-. ' I L_ .. ------ LOT 7 T•'.-'-----·--:-'-·----·:------·-.-·--;'- • • • . I / '. ' i i I I I I I I LOT 6 L ---------··----·-. ., i I I I I I I I •------ LOT 5 I I \ .I I I I I I \ \ I ) I I I! I 1, I I : I I I I I I OJECT PR s ITE R/W I I SE 1 / 4, NE 1 / 4, SEC 32, TWN 23~J. RGE 5E, W.M. ...... - LOT 4 I 6' SIDEWALK -~ " ~- ' " ----·--· -, I ---- I I I .. I L . 42' ---- / / / LOT 3 22· -" SE. 183RD CT. -~-~---1--(PUBLIC ROAD) --'-- 11+00 ---1---- ::! • CURB AND OUT'.1.:R/EDGE OF PAVEMENT -:i[ --------S-TA::-::: -=10:::;:+=-50=.o=-o=-=---~ ;·~~ 18" PLASTIC STOP LINE \ · I / I I -----------I r--· --------'''-,~ / I I I I I i I I f I -- i I I I 6' (1/2 OF LOT 2 I 6' (1/2 OF I I I I I I I I I I I I I I I I I I FUTURE CONSTRUCTION 30' 22· LOT 1 ' \ I I I I I I I I -I I SIDEWALK RAMP TO EXISTING GROUND R/W I I ,I .2' ;_ ff 1r w I 5' BIKE LANE 11' TRAVEL LANE CENTER LANE) CENTER LANE) 11' TRAVEL LANE 5' BIKE LANE I ~ - I I ;"'I' " . ~. .~ I ~ ·.~-~ .. ~-. 11611-1 AVE. SE. FUTURE R.0. W IMPROVEMENTS SECTIQN ,A. N.T.S. NOTE: FINAL CHANNELIZATION TO BE COMPLETED WITH FUTURE ROAD CONSTRUCTION ON EAST SIDE OF 116TH AVE SE. 6' SIDEWALK .~· ! '' STREET UGHT I I 0 0 ,;t; t---;--l'-,,-~S~TA~:~22~9!!,91J!.!1 13 __ _ N 1 , 10.0'LT aND 4• WHITE EDGE LINE I STA: 2 +99.53 0.0LT ND DOUBLE 'YELLOW CENTERLINE 10+00 ~-~ l W STA: 2 +34.29 (/) I O.OLT ND • ;t DOUBLE YELLOW CENTERLINE ~~ I . <( o:: t,--..--,-'--;sr;;t,.SA~: ~2~i.:i;+g34~.29, . < 10.11 L BEGl~i 4' WHITE iE ~ EDGE LI E U>.!. .-.... 0 0 + N N t- i';i '~ '< :o. ~ j E t E~ ::, I ::,0 ... ~ "'~ ll~ Q; ~~ VI a, M -00 -0 01 <11 < co :::i: 3: I 3:.c"' (U; <11 M 2 ::, 00 "~ Lin c-- 0 Ol~ Vl "' "' ,;I' --~ -r·----·-,---1-· I -· I I I I ' I ' I ' I I I ' i;;. !,I, ,;;i, ;/;, "' "" !Ii, ~ ~ i" CJ] i" CJ] , __ ,_ ffi a'i z z z z w w w w :I :I ::, ::, ::, ::, ~ ~ ::, ::, ::, ::, 0 0 ~I 0 u 0 u ~ ~ CJ] U) CJ] w w w w 0 D 0 0 0 0 0 0 ;;! 0 u u " " "' "' "' oo I 00 00 "' 0 0 '" 00 0 0 " -, 0 z " " 00 "' " '" '" ,, N "' N ~ N " '· ~ '-'-" 0 ~ "· "' "' ! "' ~ ~ N .,. --- i.O 0 0 V5 (0 a ~ 10,3' : 10.3' 4.1 1 . . . . ' . . 30' I " [ ROW · STA: 1+65.18 9. 7S'L END EDGE LINE 0.46'R END IJOUBLE YELLOW CENTERLINE MATC~ EX. CHANNELIZA TlON . GENERAL NOTES ------------------- 1. CONTRACTOR SHALL NOTIFY TRAFFIC ENGINEERING (206-2_96-6596) AT LEAST 10 BUSINESS DAYS PRIOR TO STRIPING TO COORDINATE CHANNELIZATION LAYOUT AND SIGN INSTALLATION. '.2. ALL CHANNELIZATION SHALL BE INSTALLED IN ACCORDANCE WITH KING COUNTY ROAD STANDARDS. 3. EXISTING STRIPING TO REMAIN SHALL BE REPLACED WHERE DAMAGED OR OBSCURED BY CONSTRUCTION ACTIVITIES, OR WI-IERE FADED, AS DIRECTED BY KING COUNTY. 311. ,j I- <( z -' <( a.. -' 0.. I-z ~ 0 F <( I N (/) -_, w -z I z -' <( <( :c 0 ::t w U) • ~ <( ~ (0 .-..- .-.- t0 OCl ..... O'J I() 0 ro 0) <( 3,': • z f2 z w Cl:.': t0 'q' 0 0:: U) ,..... 0 _, n '" > a: w u, w CY '" f- I (') °' _, _, s: u z " :e c; ' <( n 0 w (') u, 0 0 N © KING COUNTY TRAFFIC ENGINEER I (1. < 'f1 (~ : ""'.2 \..:~.A; \\).,.,I';~ ) ENGINEERIN_Q~1-----------I DATE DRAFTER: PG/CDM \ ' ,. ___ ,.. DESIGNER: PG Z/ z."f/o1 ·- DATE CLG PROJ. ENGR./SURV.: ' DATE: 2-17-09 f--__ __:_c;j.c_J.i _ _:;f~:_O~j-·-J PROJECT NO.: 05294 DATE I SHEErC1 Q Of, 11 1-- V! 0 .. " Q_ '° ,n (Jl 0 0 N '•. , .. ~- N w 0 0 Q_ o• C w / -0 , D / tj- m N '.I) 0 / Q_ 10 0 i,r-- N GRAPI IIC SCALE 10 20 . I I _11 . 1 INCH = 20 FT. 40 I . I '.,,s;;'._~7;----- ,-------7 I I I I I LOT 7 I I I I ! k I ·, . . . I · .... -· I I L_ -.. ----------I ' _.,' -; ) ' )_ -t' . r:r. ,. ·: ~ ---_,,, ::;· ----,---' --~----·· ' : -< I'. ,. ': ' I I I I I \ \ ! I I I I LOT 6 > I I l __ -----. -----_/ / I I I·. I ----,'--·· ----------------, I I I I I I I I I I I I L --- LOT 5 I I I I I I I I I I I I I I I I I I SE 1 / 4, NE 1 / 4, SEC 32, TWN 23N, RGE 5E, W.M. - I :~-- ~ LOT 4 - I I I I I I ---- ------------·· ------·-J-· ;-- / I / I /// I ... ... I ,J·· .• -I -· r I I . I I I I I I I I I I I I LOT 3 I I I I I TRACT "A" LANDSCAPE TRACT r -- 1 I I I I I I I I I I I I i I I LOT 2 SIDEWALK RAt,iP TO EXISTING GROUND PROPERTY BOUNDARY --1 I I I I I I • I ! I I I I I I I I I STA: 10+50.00 16" PLASTIC STOP LINE r·----- LOT 1 \ I I I I I -- 1~ "' I~ . 175 -~-.-..._ __ f '11.t; IS• :S ;: LlJ ~ :O il.JJ n.~· • . ' ilTREET LIGHT ,] ' STA: 23 31.28 i 10,44'LT ilEGIN 4" 11\ilTE • EDGE LINE 10.3' 10.3' l4 3~ ! • :, 0.11'LT B • hlATCH E GIN DOUBLE YE • CH ANN ELIZA 11 LLOW CENTERLINE ON • ~STREETLIG i ·. I HT 8 + STA: 22 99.53 "' ;i 10.0'L T ND ~-· \\HITE "' EOG£ LIi E I I STA: 2 +99.53 • o.o'LT ND DOUBLE YELLOW CENTER LINE La.I STA: 2 +34.;•9 . (/) 0.0LT ND • ;j DOUBLE! YELLOW CENTERLINE ~~ <C :ll r--;-...... ..L-.,,s,,.,rA~: "'2~+g34~-#.2,9;,,,, ~= 10.11 L L,BEGIN 4' \\HITE p: ~ EDGE Llf'E . <De -.- 8 + "' "' ~ ''-+1_2_' -+~1...:0.;.;,3:..' +=:..'_;.:' :.:.:..' -" 10,3 ,4.1, 2' I I I I I I I I I I I I -.. "r)~Z~,i1t0. ·• --1 I_------------- I I I I I I I I I I I I I _____ I '. ,, 30' 'ROW --·-'--:7-f;;--+-·'-,:·:c•-_··-·c§Su,TA~:W:.1!.l+t.!6tl!5,.J.1.!!B __ 'w '3' PROJECT SITE R/W ' 6' SIDEWALK FUTURE CONSTRUCTION 42' 30' 22' 22· 6' (1/2 OF 6' (1/2 OF 11' TRAVEL LANE 11' TRAVEL LANE 5' BIKE LANE CENTER LANE) CENTER LANE) i-------l----------+---'---....+----....;.:.J--------~..J...-----1 5' BIKE LAN 116TH AVE. SE. FUTURE R.O. W IMPROVEMENTS SECTION ~ N,T.S. NOii,: FINAL CHANNELIZATION TO BE COMPLETED WITH FUTURE ROAD CONSTRUCTION ON EAST SIDE OF 116TH AVE SE. SIOEWAL_K RAMP TO Y 1 . ---' 6:XISTING GROUND ' __ 6' SIDEWALK ·I R/W II \ \, \, "-0 "' oz : ~ · 9. 78'L END EDGE LINE I@~ ,j;:J ~ i GJ Z D.4B'R END DOUBLE YELLOW CENTERLINE '' w:o (,.-~!al : < MATCH EX. CHANNELIZATION 1--w -[ w ::,; I ':t:°'' ':~o [t::Mi :;,eO . 'WI-:,::, '<>"° -::,"' "'g ,zw ' .. :Qz •t!l, iFz·:· ·1.._.=i iZW ,, VJ ::t .\c, a::: 1 F Z 'zW '!ll:::J ['j F~ x· "' liJ "' I /ju I GENERAL NOTES I.. CONTRACTOR SHALL NOTIFY TRAFFIC ENGINEERING (206-296-6596) AT LEAST 10 BUSINESS DAYS PRIOR TO STRIPING TO COORDINATE CHANNELIZATION LAYOUT AND SIGN INSTALLATION. 2. ALL CHANNELIZATION SHALL BE INSTALLED IN ACCORDANCE WITH KING COUNTY ROAD STANDARDS. 3. EXISTING STRIPING TO REMAIN SHALL BE REPLACED WHERE DAMAGED OR OBSCURED BY CONSTRUCTION ACTIVITIES, OR WHERE FADED, AS DIRECTED BY KING COUNTY. 311 · '" KING COUNTY TRAFFIC ENGINEERING ENGINEER DATE DATE DATE ~ j l E~ I ::::, ::; ... ;;; "' CU'7 Gl,... I!!; o~ ..... vi M -co -0 "'I 00 u I ::? I ), s:: . ,_ w -fem > z :::, co ":; 1.11 c:r- 0 Ol~ "' "" ,, ,;._. ~ - "' ~ 1:2 ia ! 1:5 I ~ ~ ~ 8 8 " " "' <X} 0 0 ', ,, m "' ~L I .... "' - I- <( z ...J :s Q.. CL I-z fl: 0 QF :c ~ U) :J -:c .....J <( ~ w z z <( a · r-·1 _ "' "' 't ~ V) V) ff) 1--f-f-z z z w w w ::a " }I " :,; 0 0 0 0 u 0 V) V) V) w w w 0 0 0 0 0 0 0 u (.) "' "' " --- 00 "' 0 0 ', ', ro m N "' ', .... 0 m - w 00 (/) I{) •O ~ co < O> "' 0 ', <O N ', -- • .... z .... f:2 ..... .-z l'0 w 00 !l'.'. ---, _ I ~ V) f-z w ::, ::, 0 0 V) w 0 0 u " - "' 0 ', "' -.... "' DRAFTER: PG/COM DESIGNER: PG tO 0 0 0 (/) tO 0 ....J ' l'0 ,q- 0 ~ (/) " 0 ....J n w > 0: w •n '"" 0: u z " c' ,,: 0 0 1.,' (_') 1.() 0 Q '" G} PROJ. ENGR./SURV.: CLG DATE: 2-17-09 PROJECT NO.: 05294 SHEErC1 Q 01; 11 I I ' •:(. 1··- I I I --.. _._._,, ______________ - 103.38 1. --·---·---------------------···---·-----·--·-··· ----------------. ---------------- I I ' /1 \ n' r,wt1 r Gf ·1u, t J // / m:n1r.-it n ,;J ·"· P,,, .. J,-,,~.,, ,,--~i-,·r n,£·•· I ''-'.:: ,.,:,-.. ,11.,,:,~ :.,::. ___ . 1-U' 0>11 Ct}H(!t ((Yi''.) ·-· r--- @ .. I '' fl I ·I , -·• " -------, i)<J..c'·•.l ' ii'r.~, ~I- ~~-.. _____ /___ ·- Street Light Tables SL# TAG# GRID# SL 1 SL2 SL.3 SL.4 SL.5 SL.6 POLE EXISTING PSE WOOD DISTRIBUTION EXISTING PSE WClOD DISTRIBUTION --- EXISTING PSE WOOD DISTRIBUTION EXISTING PSE WOOD DISTRIBUTION 15' GREY OCT CONC EXPOSED AGGR. 15' GREY OCT CONC EXPOSED AGGR. MH 25' 25' 25' 25' 15' 15' -----·---··-·--------- LUMINA IRE 200WH PS COBRAF LAT 200WH PS COBRAF LAT 200WH PS COBRAF LAT 200WH PS COBRAF LAT 100W HPS B LACK DAYFOR M 100W HPS BLACK DAYFORM ·rHIS SYSTEM WILL BE PSE OWNED & MAINTAINED. ALL INSTALLATION cos1·s AND MONTHLY CHARGE WILL BE PAI[> BY THE DEVELOPER AND/OR HOA. *STREET LIGHTS MUST BE INSTALLECl WHERE SHOWN ON THESE PLANS. WATER, SEWER, STORMWATER, AND OTHER UTILITY APPURTENANCES WILIL BE RELOCATED AS NECESSARY TO AVOID CONFLICTS WITH SPECIFIED STRfET Ll~H-~ LOCATIO~S. i I STA ARtvl OFFSET . 8' 8' 8' 8' NIA NIA ' DEVELOPER MALHI SHORT PLAT MALHI SHORT PLAT MALHI SHORT PLAT MALHI SHORT PLAT MALHI SHORT PLAT MALHI SHORT PLAT I . +-----------·-----~--...+----------+--+--------+----------' SL? 15' GREY OCT CONC EXPOSED AGGR. 15' 100W HPS BLACK DAYFORM N/A MALHI SHORT PLAT --......L.--L----------'----'---·--.1.---------·- KING COONTYt>EPT. OF TRANSPORTATION Tfatrio Engln'e@i"hig a'ppi-ovals apply only to the lnstEiHStliJ°n ·of SL 1 through SL5 to l!lumln"ate £he new ·inter Section lo King County required Ilg ht levels. Appre>Yill doos not apply to details of Installation. PS.E to own & malntalll all poles, arms & fixtures. Review EnginJlf" ... '.Dt.!~ (1 ~/· )/YI .......... ·· -,· /'" I ' (~~~" y.p~ qs;fis Supervising Eng in,,.· • 1 /J~ "'j ,._. f ~Dlite / ----"-"'~ I i l L .s:te· /0 :. c._ ____ • __ .,.,Siqrj8tur..· ____ --"".','----~~-~ I I i INTOLIGHT STREET LIGHT NOTES ALL STREET LIGHTING POLES ARE TO BE INSTALLED PER STANDARD 6375.4800 (page #2) IN THE "LINE WORK PRACTICES MANUAL". ALL POLES (WOOD, CONCRETE OR FIBERGLASS) ARE TO BE SET PLUMB AND EMBEDDED TO THE GROUND LINE MARKED ON THE POLE. BACKFILL AROUND POLE WITH 5/8" MINUS GRAVEL AND COMPACT IN 6" LIFTS. (PEA GRAVEL AND NATIVE SOILS ARE NOT ACCEPTABLE.) APPROXIMATELY 1 CU. YD. OF 5/8'' MINUS CRUSHED ROCK WILL BE REQUIRED. THE DEVELOPER IS REQUIRED 1'0 SUPPLY AND INSTALL PLASTIC (NON PAPER) STREET LIGHT TUBES (MINIMUM 18" DIAMETER) TO AID IN THE INSTALLATION OF THE STREET LIGHTING POLES. THE DEVELOPER MUST ALSO SUPPLY THE REQUIRED 5/8" MINUS GRAVEL AT EACH STREET LIGHT LOCATION. IN ALL SHOEBOX AND COBRAHEAD INSTALLATIONS, THE LUMINAIRE MUST BE LEVELED. DEVELOPER MUST SUPPL Yi DURABLE LID/COVER AT EACH S1REET LIGHT TUBE. Plan View Detail of Street Light Tube Wire Entrance Slot Street Light Tube 5'-0" -Street light tube set 2" below grade. Field Side / Wire Entrance Slot ' 45• '\...__ Road · 45" /-----; Side / 3" x 6" Wire Position 3" x e~ wire entrance slot 45 degrees lert or right from a line r_~rpendicular to road- way through center of lube. STREET LIGHT TUBE DETAIL Vicinity Map 1811 -24 11 Minimum Depending on Pole Type THOMAS GUIDE PAGE 686 E-1 PR9JECT Pl!ASE NOTIF# l'WR St Light CIC Relocation Removal CABLI; TV PHONE X Project Manager Contact lnforination: STEVE AVIS 206-999-1514 Ca// Phona "Locates Required" "Outage& Required" "Flagging Required" Yes No Yes No v,e No CALL (800) 424-5555 2 BUSINESS DAYS BEFORE YOU DIG THIS SKETCH NOT TO BE RELIED UPON FOR EXACT LOCATION OF EXISTING FACILITIES .REV# DATE BY DESCRIPTION REAL ESTATE/EASEMENT e--==--+-==+...--=c:....-.i.:====--------1 PERMIT 5 N/A 4 FUNCTION CC:,NTAGT PHQNE NO QAtE 3 PROJECT MGR J. KENNEDY 206-604-3348 f..-._C2-·-+--+---·-+-----------l'E-'N.:.:G:::R:c·:::P..:;OW=ER=---M. HAMMONS 425-456-2602 I f-._C'---+--+---+-----------+=='-.'...==-+-'--==:.:..::i-=c.....::.c.:...=..c...i---~ ! f---'1-. ....L--+--·-+~--~-------+=EN:::G:::R:..:·~G::AS:c_.__-b~===±-=~-=+=d • COUN1Y EmerSect GasWkCtr POWERWKCTR DRAWN BY M.HAMMONSI 425•456•260212/19/07 I KING SKC-SVC CHECKED BY 1/4 SEC OP MAP PLAT MAP APPROVED BY FOREMAN#1 lJ..MAP NO (POWER) CIR MAP NO FOREMAN#2 . . CIRCUIT NO MAPPING " ' ' JOINT FACILITIES ARRANGEMENTS UTILITl~S f..--------f..--------+-- CONTACT _______ --1---------lf---~------+------..;---I PHONE# f..-~~--~-+---------+-------~...L-.----·-----+==~~~-cc=,........, INCIDENT MAOP PUGET SOUND ENERGY DESIGNED BY INTDLIGHT MALHI SHORT PLAT STREET LIGHT DESIGN 18311116AVESE RENTON, WA. 98058 N/A N/A ·. ,"',""#....L.-=~~ SCALE 1"30' PAGE 1l~ ~-~---------------·--------------~· ·---·-·------------------------------------·-· ,- ' I L. LOT 7 4,212 S.F. LOr b 4,715 S.F. I I I I -------··-·-.. I ...... -----------·-·-----------------------------··-·-----~ l I , ! I '/) ' ,'f, .... __ _l ______ _ ' Street Light Tables SL# TAG# GRID# POLE - SL1 EXISTING PSE WC)OD DISTRIBUTION SL.2 EXISTING PSE WOOD DISTRIBUTION ~- SL3 EXISTING PSE WOOD DISTRIBUTION -- SL4 EXISTING PSE WOOD DISTRIBUTION SL5 15' GREY OCT CONC EXPOSED AGGR, SL6 15' GREY OCT CONC EXPOSED AGGR. a- SL7 15' GREY OCT CONC EXPOSED AGGR. - - - . , . MH l_UM!NAIRE 200WHPS 25' COBRAFLAT 25' 2001/v HPS COBRAFLAT 25' 200WHPS COBl'<AFLAT - 25' 200WHPS COBRAFLAT 100W HPS BlACK 15' DAYFORM 15' 100W HPS BLACK DAYFORM 15' 100W HPS BLACK DAYPORM - THIS SYSTEM WILL BE PSE OWNED & MAINTAINED. ALL INSTALLATION cos1·s AND MONTHLY CHARGE WILL BE PAI[> BY THE DEVELOPER AND/OR HOA. *STREET LIGHTS MUST BE INSTALLECI WHERE SHOWN ON THESE PLANS. WATER, SEWER, STORMWATER, AND OTHER UTILITY APPURTENANCES WILiL BE RELOCATED AS NECESSARY TO AVOID CONFLICTS WITH SPECIFIED STREET LIGHT LOCATIONS. .. STA ARM DFFSE-, DEVELOPER 8' MALHI SHORT PLAT 8' MALHI SHORT PLAT 8' MALHI SHORT PLAT 8' MALHI SHORT PLAT N/A MALHI SHORT PLAT N/A MALHI SHORT PLAT MALHI SHORT N/A· PLAT ·- KING COUNTY DEPT. OF TRANSPORTATION Traffic En'-ln1&erlng Section Approvals . . . Triiiiic En~ikear1rlQ appi'ovals ai,ply ol'lly to the lristallatlon of SL 1 through SL5 to lllurrilnate the new lnter'secllon to King co·unty required light levels. Approval doe~ not apply to details of lnstallatlon. PSE to own & m11lntaln all poles, arms & nxtur~s. Review EnglZ::~tl./J::4Z"b tc-· I z/":>;b;; jSiQri'atLif'e· ..,:1 --DEita Supervising Engin~ / J.. _ _ ,/ / / J I "·wx·,10 l ·, '--· "'·" . -· INTOLIGHT STREET LIGHT NOTES -------------------------·------ ALL STREET LIC3HTING POLES ARE TO BE INSTALLED PER STANDARD 6375.4800 (page #2) IN THE "LINE WORK PRACTICES MANUAL". ALL POLES (WOOD, CONCRETE OR FIBERGLASS) ARE TO BE SET PLUMB AND EMBEDDED TO THE GROUND LINE MARKED ON THE POLE. BACKFILL AROUND POLE WITH 5/8" MINUS GRAVEL AND COMPACT IN 6" LIFTS. (PEA GRAVEL AND NATIVE SOILS ARE NOT ACCEPTABLE.) APPROXIMATELY 1 CU. YD. OF 518" MINUS CRUSHED ROC.K WILL BE REQUIRED. THE DEVELOPER IS REQUIRED TO SUPPLY AND INSTALL PLASTIC (NON PAPER) STREET LIGHT TUBES (MINIMUM 18" DIAMETER) TO AID IN THE INSTALLATION OF THE STREEl-LIGHTING POLES. THE DEVELOPER MlJST ALSO SUPPLY THE REQUIRED 5/8" MINUS GRAVEL AT EACH STREET LIGHT LOCATION. IN ALL SHClEBOX AND COBRAHEAD INSTALLATIONS, THE LUMINAIRE MUST BE LEVELED. DEVELOPER MUST SUPPLY DURABLE LID/COVER AT EACH STREET LIGHT TUBE. Plan View Detail of Street Light Tube Street Light Tube I -Street light tube set 2" below grade. Wire Entrance Slot~ Field Side Field · .. i, .. ·,.,i.,g,,'.5i,, __ ~.-,' ',.,:_.J,, ·;_",,7.c.··.c,~·,;,:·,=\ 1 '===r•R'°o•a'!d .s.,,id•e-, , " , • . -. c,:2;~: ,:s;~~-0"1, :O"?iQ,::;;-L'l 1; I . , ·, ' :: j ··"°f"="f'.""1·~· """f ""''= =&=-. . ·--. / Wire En1rance Slot Position 3" x 6" wire entrance slot 45 degrees -!r>ft or :ight from a l:nf!. perper:::!l:::s.ilsr io mad~ __ way through center of tube. ' ' 3" x 6" Wire . Entrance Slot // 20" 26 ,, / '>< -// ---.... I • '-// \ \\--:-~~ J 45°"-._ '-"; / . / Poles shorter than · 35', use 5' !L1be. Poles 35' and longer -.I USP_ 7• .tuh;~--_,-,><::.~ -1--· ./ --- STREET LIGHT TUBE DETAIL ~~---~ 1 .. ..1 1a;~~:~~~~i~~m PROJECT PHASE PWR St Light CIC Relocation Removal CA!ILE TV PHONE NOTIF# X Project Manager Contact Information: STEVE AVIS 208-999-1514 Cell Phone "Locates Required;' Yes "Outages Required" Yes "Flagging Roqulred" Y•• No No No Pole Type Vicinity Map THOMAS GUIDE PAGE 686 E-1 - CALL (8110) 424-5555 2 BUSINESS DAYS BEFORE YOU DIG THIS SKETCH NOT TO BE REUED UPON FOR EXACT LOCATION OF EXISTING FACILITIES REV# DATE BY 5 DESCRIPTION REAL ESTATE/EASEMENT --'--------l PERMIT I NIA 4 FUNCTION CONTACT PHON~ NO DATE 3 PROJECT MGR J. KENNEDY 206-604-3348 l--:2--t----t----t-----------+E:'-N'-:Gc:R::c-'::PO:':W'-:E=:R:--l;!Vlc.,,H.-aA"Mr.Mc.:O=,Nlif425-456•2602 ·-·I----< 1 ENGR-GAS COUNTY Erner Sect Gas Wk Ctr POWER WK CTR DRAWN BY M. HAMMON 425-456-2602 12/19107 - f---~K~IN~G~--1---~---t--'S"'K~C~-S,cVC~------+O_H_E_C_K_ED-B-Y __ -+------+-----t----< 1/4 SEC OP MAP PLAT MAP APPROVED BY FOREMAN#1 U-MAP NO (POWER) CIR MAP NO CIRCUIT NO FOREMAN#2 MAPPING JOINT FACILITIES ARRANGEMENTS . ' UTILITIES f---------f---------f-----------1----------1 CONTACT 1--------->---------1----~-----+---· PHONE# --.----~-------~--------~--- ' PUGET SOUND ENERGY DESIGNED BY INTOLIGHT MALHI SHORT PLAT STREET LIGHT DESIGN 18311116 AVE SE RENTON, WA. 98058 .--------l--,,.,~ccc=c-,--"--ccc-cc~-, INCIDENT MAOP N/A N/A T LleoHT ff SCALE 1"30' PAGE 1/1 ') l,, ,~.\ ~ m .:c:. "' 0 0 i)j i;; "' ~ 0 ol --z <( -' [L u "' I HEARING EXAMINERS DECISION AND CONQITIONS OF APPROVAL PROPOSED SHORT PLAT REv1SED AND RECEIVED OCTOBER 5, 2005 (ATIACHMENT 1) -':IS'-c:G'c:RA~N'cTE=D-cP:::R:::Ec-Lc-lM"'IN"Ac:RccYc--A"P"P:::Rc:OccVc-ALc-cS~U'-:cB-:cJE:::C,cT-cT~O~=TH~E~------------------ CONDITI ONS OF FINAL APPROVAL C. THE APPLICANT MUST OBTAIN THE APPROVAL OF THE KING COUNTY FIRE PROTECnoN ENGINEER FOR THE ADEQUACY OF TilE FIRE FOLLO~NG : HYDRANT, WATER MAIN AND FIRE FLOW STANDARDS OF CHAPTER 17.08 OF THE l<ING COUNTY CODE PRIOR TO FINAL ENGINEERING 1. THE Pi10POSAL SHALL COMPLY WITH ALL PLATTING PR0v1SIONS OF KING COUNTY TITLE 19A. THE FINAL SHORT SUBDIVlSION kECORDING APPROVAL. DOCUMENTS MUST BE PREPARED BY A PROFESSIONAL LAND SURVEYOR, LICENSED IN TIIE STATE OF WASHINGTON. THESE DOCUMENTS SHALL COMPLY WITH THE CONDITIONS OF APPROVAL LISTED IN ll·IIS LEfilR. 11. QENSITY AND DIMENSIONS (KCC 2JA,l2) ALL LOTS SHALL MEET TIIE DENSITY AND DIMENSIONS REQUIREMENTS OF THE R-8 ZONE 2. ALL PIJlSONS HAv1NG AN OWNERSHIP INTEREST IN THE SUBJECT PROPERTY SHALL SIGN ON THE FACE OF THE FINAL SHORT SUBD1v1S10N. 3. THE FIIIAL REv1EW PROCESS MUST BE COMPLETED PRIOR TO THE RECORDING OF THE SHORT SUBDIVISION OR THE SALE OF ANY LOTS CONTAIIIED ~THIN. THE DEPARTMENT OF DEVELOPMENT AND ENVIRONMENTAL SERVICES (ODES) STRONGLY RECOMMENDS THAl THE FINAL :atJQF_J_J'J.AT RE\aEW PACKAGE BE SUSMITTEP TO THE DEPARTMENT AT LEAST ONE YEAR PRIOR IQ THE EXPIRATION PATE Of ItlE. PREUMWIARY APPROVAL LETTER. 4. ALL U 11Lll1ES ~THIN PROPOSED RIGHTS-OF-WAY MUST BE INCLUDED ~THIN A FRANCHISE APPROVED BY THE KING COUNTY COUNCIL PRIOR TO FINAL SHORT PLAT RECORDING. 5. PRIOR TO HECORDING, THAT lllE FOLLO~NG IS REQUIRED PER KCC 19A.DB.160: A. DHAINAGE FACILITIES AND EROSION CONTROL MEASURES ARE CONSISTENT ~TH K.C.C. 9.04.090: 8, WAfER MAINS AND HYDRANTS (IF REQUIRED) ARE INSTALLED AND FIRE FLOW AVAILABLE; C. GRADING AS NECESSARY SO THAT ALL LOTS ARE ACCESSIBLE BY PASSENGER VEHICLE; o. SPECIFIC SITE IMPROVEMENTS ARE COMPLETED THAT ARE REQUIRED AND CONDITIONED PRIOR TO PLAT RECORDING OR REQUIRED TO REMOVE ANY SAFETY HAZARD; 6. ZOOS [slllG CO\JljT SURFACE WAITR DE;SIGN MANUAL (KCSWDMJ=_ THE PROPOSED SHORT PLAT QUALIFIES FOR FULL DRAINAGE REv1EW AS OUTLINED IN CHAPTER ONE OF THE SURFACE WATER DESIGN MANUAL. FINAL SHORT PLAT APPROVAL SHALL REQUIRE FULL COMPLIANCE WITH TIIE DRAINAGE PR0v1SIONS SET FORTH IN KING COUNTY CODE 9.04·. A PROFESSIONAL CIVIL ENGINEER LICENSED IN THE STATE OF WASHINGTON SHALL PREPARE DRAINAGE PLANS AND A TECHNICAL INFORMATION REPORT AS OUTLINED IN CHAPTER 2 OF THE DRAINAGE MANUAL. THE DRAINAGE PLAN SUBMITIAL SHALL DEMONSTRATE COMPLIANCE WITH ALL APPLICABLE CORE AND SPECIAL REQUIREMENTS. COMPLIANCE MAY RESULT IN REDUCING lHE NUMBER AND /OR LOCATION OF LOTS AS SHOWN ON THE PRELIMINARY APPROVED SHORT PLAT. PRELIMINARY REVIEW HAS IDEN-nFIED THE FOLLOWING CONDITIONS OF APPROVAL, ™ICii REPRESENT PORTIONS OF THE DRAINAGE REQUIHEMENTS. ALL OTHER APPLICABLE REQUIREMENTS IN \(CC 8.04 AND THE SURFACE WATER DESIGN MANUAL (SWUM) MUST ALSO BE SATISflED DURING ENGINEERING AND FINAL REVIEW. A. SI ANDARD PLAN NOTES AND A CONSTRUCTION SEQUENCE AS SPECIFIED IN THE SWDM SHALL BE SHOWN ON THE ENGINEERING PLANS (REFERENCE SECTION 78). 8. AS REQUIRED IN KCSWDM CHAPTER 2, A STORM WATER POLLUTION PREVENTION AND SPILL (SWPPS) PLAN SHALL BE INCLUDED WITH TH!c PROJECT ENGINEERING PLANS. c_ TO IMPLEMENT THE REQUIRED BEST MANAGEMENT PRACTICES (BMP'S) FOR TREATMENT OF STORM WATER, THE FINAL ENGINEERING PLANS AND 1ECHNICAL INFORMATION REPORT (llR) SHALL CLEARLY DEMONSTRATE COMPLIANCE WITH ALL APPLICABLE DESIGN SJ ANDARDS. AS DESCRIBED IN CHAPTER 5 OF THE DRAIMAGE MANUAL, A SUB0lv1SION PROJECT MAY IMPLEMENT THE REQUIRED BMt''S OR DEFER THE BMP REQUIREMENTS UNTIL FUTURE REv1EW OF BUILDING PERMITS. IN EITHER CASE, ll!E FINAL ENGINEERING PL/,NS SHALL CLEARLY INDICATE THE APPLICABLE BMP STANDARDS AND REQUIREIAENTS FDR IMPLEMENTATION ON lHE RECORDED PLAT. AMY PROPOSED CLEARING AND GRADING OF TI1E SITE SHALL ALSO COMPLY V~TH THE SOIL AMENDMENT REQUlllEMENTS IN KCC 1G ll2.100. D. A t 'ROPOSAL TO IMPLEMENT THE REQUIRED BEST MANAGEMENT PRACTICES FOR DEVELOPMENT OF.· THE SUBDlv1SION AND TO RECEIVE CRLOIT IN SIZING THE FLOW CONTROL FACILITY SHOULD BE INCLU~ED \~TH T11E ENGINEERING SUBMITIAL, THE ENGINEERING PLANS AND TECHNICAL INFORMATION REPORT SHALL PROVIDE ALL REQUIRED DESIGN STANDARDS AND PROCEDURES FOR IMPLEMENlltlG THE BMP'S WIIEN APPLIED. DURING ENGINEERING REv1EW, THE APPLICANT MAY ALSO CHOOSE ALTERNATIVE DESIGNS FOR BEST MANAGEMENT p1:1,CllCES AS ALLOWED BY THE S\\'DM. THE FINAL RECORDED PLAT SHALL IMCLUDE COVENt.NTS, EASEMENTS, NOTES, AIIU OTHER Df:TAILS TO IMPLEMENT THE BMP'S FOil SITE DEVELOPMENT WHEN APPLIED. E. STORM WATER FACILITIES SHALL BE DESIGNED USING THE KCRTS CONSERVATION FLOW CONTROL STANDARD. WATER QUAI.ITY FACILITIES SHfo,LL ALSO BE PROv1DED USING THE BASIC PROTECTION MENU. THE SIZE OF THE PROPOSED DRAINAGE TRACTS MAY HAVE TO INCREASE TO ACCOMMODATE THE REQUIRED DETENTION STORAGE VOLUMES AND WATER QUALITY FACILITIES. ALL RUNOFF CONTROL FACILITIES SHALL BE LOCATED IN A SEPARATE TRACT AND DEDICATED TO l(ING COUNTY UNLESS PORTIONS OF THE DRAIIIAGE TRACT ARE USED FOR RECREATION SPACE IN ACCORDANCE V~TH KCC 21A.14.180. F. IF THE STORM WATER DESIGN REQUIRES IMPLEMENTATION OF SMALL PROJECT BMP'S, ·n,E FOLLOWING NOTE SHALL BE SHOWN ON THE FINAL RECORDED PLAT: 1't.RMIT APPLICATIONS FOR BUILDINGS OR OTHER IMPROVEMENTS CONSTRUCTED ON LOT~ c:PEATED BY THIS SUBDIVISION MUST BE REv1EWED BY KING COUNTY FOR COMPLIANCE ~TH BEST MANAGEMENT PRACllCES (BMP'S) AND OTHER APPLICABLE DRAINAGE STANDARDS AS SPECIFIED IN THE SWOM. AS DETERMINED BY KING COUNTY, l11E PERMIT APPLICANT FQR' EACH LOT MUST PREPARE A DRAINAGE SITE Pl.AN ~111 PROCEDURES FOR DESIGN AND MAINTENANCE DETAILS, AND RE~ORO A pECL,:IRATION OF COVENANT AND GRANT OF EASEMENT FOR IMPLEMENTATION OF THE BMPS. ,,.,,,,J:,,,. .. G. CONSISTENT WITH AUTHORITY AND PROCEDURES OUTLINED IN CHAPTER 1.4 OF THE •:.. . • SWDM, ADJUSTMENTS TO ANY OF THE ABOVE REQUIREMENTS MAY BE CONSIDERED. ADJUSTMENTS SHALL BE SUBMITIED TO DOE'S ON THE APPROPRIATE FORM AND WITH THE MINIMUM FEE DEPOSIT. 7. )993 K\N!LQQUNTY RO&DS STANDARDS (KCRS) FINAL SHORT PLAT APPROVAL SHALL REou:::c: CULL COMPLIANCE ~TH l11E PROv1SIONS SET FORTH IN THE 1993 KCRS, INCLUDING ENGINEERING PLANS FOR ALL ROAD IMPROVEMENTS. 1H', ENGINEERING PLANS SHALL BE PREPARED BY A PROFESSIONAL Clv1L ENGINEER LICENSED IN THE STATE OF WASHINGTON. PPES SJRONG!.Y.JlECOMMENDS TH/lT THE ENGINEERING PLANS BE SUBMITTED /IT I.EAST JWO YEARS PlllOR TO THE EXPIRATION PATE OF THE PROJEC.L. ALL CONSTRUC'IION 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). lllE PROPOSED SHORT SUBD1v1SION SHALL COMPI Y ~1TH lHE 1993 KING COUNTY ROAD STANDARDS (KCRS) INCLUOING lllE FOLI.O~NG REQUIREMENTS: A. Tltr: EXTENT OF IMPROVEMENTS REQUIRES SUBMllTAL OF ENGINEERING PLAN AND PROFILcS AND APPROPRIATE REv1EVI FEES. PLANS SHALL BF. PREPARED AND STAMPED BY A PROFESSIONAL. ENGINEER LICENSED IN THE STATE OF WASHINGTON AND CONTAIN THE APPLICABLE ELEMENTS OUTLINED IN KCRS AND/OR THE 2005 SURFACE WATER DESIGN MANUAL (SEE SECTION 2.2.2). ~_JJOJE. JLAT THE APPLICANT SHOULD SUBMIT THE PLANS A MINIMUM OF SIX (6) MONTHS PRIOR TO THE PRELIMINARY APPROVAL EXl'JllAILQJi QAIE,_ B. 116lli AVENUE SE IS CLASSIFIED AS A MINOR ARTERIAL SffiEET PER 111E KCRS SECTION 2.02. URBAN FRONTAGE IMPROVEMENTS CONSISllNG OF CURB GUfilR AND SIDEWALK SHALL BE CONSTRUCTED ALONG THE FRONTAGE OF THIS ROAD CONSISTENT ~TH A (2/3)(4)(5) LANE ULTIMATE ROAD DESIGN. DIRECT ACCESS TO 116TH AVENUE SE FHOM THE ABUTTING LOTS IS PROHIBITED. A NOTE TO THIS EFFECT SHALL BE SHOWN ON THE RECORDED SITE PLAN. C. ADDITIONAL RIGHT-OF-WAY SHALL BE DEDICATED ALONG THE 116TH AVENUE SE FRONTAGE TO PROv1DE 42 FEET FROM CENTERLINE OF ROAD PER KCRS SECTION 2.02K. ADDITIONALLY, A 25-FOOT PROPERTY LINE RADIUS SHALL BE PROv1DED AT THE INTERSECTION ~TH THE ON-SITE ROAD. D. lHE ON·-SITE ROAD AS SHOWN ON THE SITE PLAN SHALL BE CONSTRUCTED TO THE URB,\N MINOR ACCESS CLASSIFICATION AND BE DEIJICAlED TO KING COUNTY PER KCRS, SECTION 2.03. E. A PERMANENT CUL-·DE-SAC AS SHOWN ON THE SITE PLAN SHALL BE CONSTRUCTED PER lJ-IE KCRS SECTION 2.08. THE ROW FOR THE CUL-DE-SAC BULB SHALL BE PLACED WHERE IT CAN PR0v1DE A 36-FOOT WIDE snJB TO THE NORTH PROPERTY LINE. THE ROW FOR THI'. CUL·-DE-SAC BULB SHALL BE DEDIC A TED TO KING COUNn'. ADDITIONALLY, A 25-FOOT RADIUS SHALL BE PRDv1DED AT TIIE f'OIN T W11ERE THE STUB MEETS THE BULB ROW. F. A ROAD VARIANCE APPLICATION REGARDING INTERSECTION SPACING WAS APPROVED BY KING COUNTY (ATIACHMENT 2) ON JUNE 20TH, 2UD6 (FILE NO. LD6V0004). THE FINAL ENGINEERING PLANS FOR THE SHORT PLAT SHALL COMPLY WITH ALL CONDITIONS OF APPROVAL FOil 111E ROAD VARIANCE DECISION. G. 11 IE MINIMUM ENTERING SITE DISTANCE SHALL BE PROVlDED AT THE INTERSECTION OF THE ON-SITE ROAD AND 116TH AVENUE SE PER ll·IE l(CRS SECTION 2.13. ADDlllONALLY, STREET ILLUMINATION SHALL BE PROv1DED AT lHE NEW INTERSECTION IN ACCOr,DANCE ~TH KCRS 1 SECTION 5.03. H. MODIFICA·noNS TO THE ABOVE ROAD IMPROVEMENT CONDITIONS MAY BE CONSIDERED BY i(ING COUNTY PURSUANT TO THE VARIANCE PROCEDURES IN KCRS 1.08. ANY REQUEST FOR A ROAD VARIANCE SHALL BE SUBMITIED TO ODES ON THE APPROPRIATE FORM AND ~111 THE MINIMUM FEE DEPOSIT. ENGINEERING DETAILS THAT MAY BE SHO~ ON THE PRELIMINARY SITE PLAN MAY NOT HAVE BEEN REv1EWED FOR COMPLIANCE ~TH KCRS. IF DIFFERENCES EXIST, THE FINAL DESIGN SHALL RE MODIFIED TO MEET KCRS. J. THE PROPOSED ROAD IMPROVEMENTS SHALL ADDRESS THE REQUIREMENTS FOR ROAD SURFACING OUTLINED IN KCRS CHAPTER 4. AS NOTED IN SECllON 4.01 F, FULL WIDTH PAVEMENT OVERLAY IS REQUIRED ™ERE WIDENING EXISTING ASPHALT. I<. STREET TREES SHALL BE INCLUDED IN THE DESIGN OF ALL ROAD IMPROVEMENTS, AND SHALL COMPLY ~TH THE KCRS SECTION 5.03. L. A HI-FOOT \~DE PEDESTRIAN TRACT EXTENDING WEST FROM THE CUL-DE-SAC TO "IHE WEST PROPERTY FINE SHALL BE PROv1DED. TIIE LOCATION OF THE PEDESTRIAN TRACT SHALL SE COORDINATED WITH TI-IE GREENWOOD SUBDlv1SION. ll1E PEDESTRIAN TRACT SHALL BE IMPROVED ~TH 5-FOOT PAVED SURFACE, LANDSCAPING AND FENCES ON EACH SIDE. M. MODIFICATIONS TO THE ABOVE ROAD CONDITIONS MAY BE CONSIDERED BY KING COUNTY PURSUANT TO TIIE VARIANCE PROCEDURES IN KCRS, SECTION 1.06. 8. 8. tlE/ILTH (KCC 13)-. THIS PROJECT IS EXEMPT FROM FURlllER KING COUNTY HEATH DEPARTMENT REv1EW. HOWEVER, IF IMPROVEMENTS ARE REQUIRED FROM THE SEWER AND/OR THE WATER DISTRICT, THEN VERIFICATION SHALL BE REQUIRED FROM SAID DISTRICT(S) THAT THE IMPROVEMENTS HAVE BEEN BONDED AND/OR INSTALLED, PRIOR TO FINAL RECORDING OF THE SHORT PLAT. 9. fil!ll.[JllG AUP CONSJRUCTION STAND6RDS (]JLE 16)-THE APPLICANT SHALL COMPLY V~l11 ALL APPLICABLE PROv1SIONS OF KCC 16.82. 10. FIRE CQDE; (Ki;i; J7) SECTION 902 OF THE 1997 EPl]ON OF UNIFORM FIRE.J::QDE A. DUE TO INADEQUATE FIRE APPARATUS ACCESS AND THE LACK OF HAVING A FIRE HYDR! .. NT LOCAlED ~THIN 350 FEET VEHICULAR THAVEL DISTANCE FROM THE BUILDING ENVELOPE OF EACH LOT, ANY FUTURE RESIDENCES CONSTRUCTED ~11-IIN THIS SHOD PLAT WILL HAVE TO BE SPRINKLERED (NFPA 130), UNLESS THE REQUIREMENT IS REMOVED BY THE l<ING COUNTY FIRE MARSHAL OR HIS/HER OESIGNEE, TO REMOVE THE SPRINKLER REQUIREMENT tlQ STREET-SIDE PARKING WILL BE PERMITlED l'/ITHIN lllE SHORT PLAT (ON TRACT A) AND IT ~LL BE NECESSARY TO INSTALL A FIRE HYDRANT ~THIN 350 FEET VEHICULAR TRAVEL DISTANCE FRUM ALL LOTS . ·111E INTERNAflONAL FIRE CODE llEQUIRES ALL PORTIONS OF THE EXTERIOR WALLS OF RESIDENCES (AT GRADE) TO BE l'IITHIN 150 FEET (/,S A PERSON WOULD WALK v1A AN APPROVED ROUTE AROUND TIIE BUILDINGS) FROM APPROVED FIRE APPARATUS ACCE:SS, Ai'PROVED ACCESS IS A MINIMUM 20-FOOT WIDE UNOBSTRUCTED DRlv1NG SURFACE NOT OVER 150 FEET IN LENGTH IF DEAD-END B. !'/,RKING CAN ONLY BE PERMrnED ON ONE SIDE OF THE PRIVATE ROADS \~THIN THE SHORT PLAT. CLASSIFICATION OR SHALL BE AS SHOWN ON THE FACE OF ·rnE APPROVED PRELIMINARY SHOl1T SUBDl\'1SION1 WHICHEVER IS LARGER. MINOR REv1SIONS TO THE SHORT SUBDl\'1SION, ™!CH DO NOT RESULT IN SUBSTANTIAL CHANGES ANDtOR 00 NOT CREATE ADDITIONAL LOTS MAY BE APPROVED AT ll1E DISCf,EllON OF THE DEPARTMENT OF DEVELOP'1ENT AND ENVIRONMENTAL SERv1CES. 12. STREET TREES {KCC 2JA.J6) -STREET !REES SHALL BE PROVIDED AS FOLLOWS (PEF, l<CRS b.03 AND KCC 21A.15.050): A. TREES SHALL BE PLANTED AT A RATE OF ONE TREE FOR EVERY 40 FEET OF FRONTAGE ALONG ALL ROADS. SPACING MAY BE MODIFIED TO ACCOMMODATE SIGHT DISTANCE RF.QUIREMENTS FOR DRIVEWAYS AND INTER:iECllONS. B. TREES SHALL BE LOCATED ~THIN THE STREET RIGHT-OF·-WAY AND PLANTED IN ACCORDANCE ~TH DRA~NG NO. 5-009 OF THE 199:l !(ING COUNTY ROAD STANDARDS, UNLESS !(ING COUNTY DEPARTMENT OF TRANSPORTATION DETERMINES THAT TREES SHOULD NOT BE LOCATED IN THE STREET RIGHT-OF-WAY. C. IF KING COUNT( 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 lliE STREET RIGHT-OF-WAY LINE. D. THE TREES SHALL BE OWNED AND MAINTAINED BY TIIE ABUTTING LOT OWNERS OR THE HOMEOWNERS ASSOCIATION OR OTHER WORKABLE ORGANIZA110N UNLESS ·ntE COUNTY HAS ADOPTED A MAINTENANCE PROGRAM. OWNERSHIP AND MAINTENANCE SHALL BE NOTED ON THE FACE OF THE FINAL RECORDED PLAT. E. TIIE SPECIES OF TREES SHALL BE APPROVED BY DOES IF LOCATED ~TJ-IIN THE RIGHT-OF-WAY, AND SHALL NOT INCLUDE POPLAR, COTl'ONWOOD, SOFT MAPLES, GUM, ANY FRUIT--BEARING TREES, OR ANY OIHER TREE OR SHRUB WHOSE ROOTS ARE LIKELY TO OBSTRUCT SANITARY OR STORM SEWERS, OR ll·IAT IS NOl COMPATIBLE ~TH OVERHEAD UTILITY LINES. F. THE APPLICANT SHALL SUBMIT A STREET TREE PLAN AND BOND QUANTITY SHEET F'OR REv1EW AND APPROVAL BY DOES PRIOR TO ENGINEERING PLAN APPROVAL. G. THE APPLICANT SHALL CONTACT METRO SERv1CE PLANNING AT 664-1622 TO DETEf1MINE IF 116M SE IS ON A BUS ROUTE. IF IT IS A BUS ROUTE, THE STREET TREE PLAN SHALL ALSO BE REv1EWED BY MEffiO. H. THE STREET TREES MUST BE INSTALLED AND INSPECTED, OR A PERFORMANCE BOND POSIED PRIOR TO RECORDING OF THE PLAT. IF A PERFORMANCE BOND IS POSTED, lllE STREET TREES MUST BE INSTALLED AND INSPECTED wrnllN TWO 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 SUBMITIED OR TIIE PERFORMANCE BOND REPLACED WITII A MAINTENANCE BOND. AND HELD FOR TWO YEARS. AFTER TWO YEARS, TIIE MAINTENANCE BOND MAY BE RELEASED AFTER ODES HAS COMPLETED A SECOND INSPECTION ANO DETERMINED THAT TIIE TREES HAVE BEEN KEPT HEALTHY AND THRIVING. 13. ROAD MllliiATION PAYMENT SYSifM. -THE APPLICANT OR SUBSEQUENT OWNER SHALL COMPLY ~TH ROAD MITIGATION PAYMENT SYSTEM (MPS), KING COUNTY CODE 14.75, BY PAYING THE REQUIRED MPS FEE ANO ADMINIS1HATION FEE AS DETERMINED BY KING COUNTY DEPARTMENT OF TRANSPORTATION. Tl IE APPLICANT HAS AN OPTION TO EITHER: A. PAY THE MPS FEE AT FINAL SHORT PLAT RECORDING. IF 1111S OPTION IS CHOSEN, ll·IE FEE PAID SHALL BE THE FEE IN EFFECT AT THE TIME OF SHORT PLAT APPLICATION ANO A NOTE SHALL BE PLACED ON THE FACE OF THE SHORT PLAT THAT READS, "ALL FEES REQUIRED BY KING COUNTY CODE 14.7'5, MITIGATION PAYMENT SYSTEM (MPS) HAVF BEEN PAID." OR B. PAY THE MPS FEE AT TIIE TIME OF BUILDING PERMIT ISSUANCE. IF THIS OPTION IS CHO'.st:N, THE FEE PAID SHALL BE THE AMOUNT IN EFFECT AS OF THE DATE OF TIIE BUILDING PERMIT APPLICATION. 14. A COMBINED RECREATION AND DRAINAGE FACILITY TRACT IS PROPOSED. THE RECREATION SPACE SHALL BE PROv1DED CONSISTENT Wlll1 THE REQUIREMENTS OF KCC 21A.14.1BO AND KCC 21A.14.190 (I.E., SPORT COURT[S]. CHILOH,:N'S PLAY EQUIPMENT, PICNIC TABLE(S], BENCHES, ETC.). l11E RECREATION SPACE PLAN SHALL BE SUBMITTED FOR REVIEW AND /1PP!<OVAL BY ODES, WITH THE SUBMITTAL OF THE ENGINEERING PLANS. THIS PLAN SHALL INCLUDE LOCATION, AREA CALCULATIONS, DIMENSIONS. LANDSCAPING PER KCC 21 A. 16 AND OTHER GENERAL IMPROVEMENTS. THE APPROVED ENGINEERING PLANS SHALL BE CONSISTENT WITH THE RECREATION PLAN. THE FINAL RECREATION PLAN SHALL BE APPROVED PRIOR TO TIIE FINAL APPROVAL AND RECORDING. A PERFORMANCE BOND FOR RECREATION SPACE IMPROVEMENTS SHALL BE POSTED PRIOR TO RECORDING OF THE PLAT 15. A HOMEOWNER'S ASSOCIATION OR OTHER WORKABLE ORGANIZATION SHALL BE ESTABLISHED ro TIIE SATISFACTION OF ODES ™ICH PROVIDES FOR ll1E OWNERSHIP AND COflTINUED MAINTENANCE OF THE PEDESTRIAN TRACT Al1D THE RECREATION TRACT. 16. SCHOOL IMP6CT Fl;ES LOTS ~THIN THIS SUBDIVISION ARE SUBJECT TO !(ING COUNTY C•JDE 21A.43, ™ICH IMPOSES FEES TO FUND SCHOOL SYSTEM IMPROVEMENTS NEEDED TO SERVE NEW DEVELOPMENT. AS A CONDITION OF PINAL APPROVAL, ·rnE TOTAL AMOUNT OF THE SCHOOL IMPACT FEE SHAcL BE ASSESSED AND COLLECTED WHEN 'lliE BUILDING PERMIT IS ISSUED USING THE IMPACT FEE IN EFFECT AT THE TIME OF PERMIT APPLICATION. NOTES TO 1111S AFFECT SHALL BE SHOWN ON THE FIIIAL PLAT OTHER CONSIDERATIONS A. PRELIMINARY APPROVAL OF THIS APPLICATION DOES NOT LIMIT TIIE APPLICANT'S RESPONSIBILITY TO OBTAIN ANY REQUIRED PERMIT OR LICENSE FROM THE STA 1E OR OTHER BUT NOT BE LIMITED TO, OBTAINING A FOREST REGULATORY BODY. THIS MAY INCLUDE, PRACTICE PERMIT, AN HPA PERMIT. BUILDING PERMITS, AND OTHER ·tYPES OF ENllll_EMENTS AS NECESSITATED BY CIRCUMSTANCES. 8. DEVELOPMENT OF THE SUBJECT PROPERTY MAY REQUIRE REGISTRATlON ~lrl THE WASHINGTON STATE DEPARTMENT OF LICENSING, REAL ESTATE D1v1SION PROJECT INFORMATION ENGINEER/SURVEYOR: PROPERTY OWNER: APPLICANT / DEVELOPER: TAX PARCEL NUMBER: PROJECT ADDRESS: ZONING: SEWER & WATER: PARCEL ACREAGE: POSTMASTER APPROVAL GEODATUM, INC. 225?.5 SE 64 TH PL #266 ISSAQUAH, WA 98027 ( 425) 837--8083 HARINDER BAPLA 9501 S. 207TH f'L KENT, WA 98031 AMERICAN ASIAN CONSTRUCTION, LLC. 9501 S. 207TH PL KENT, WA 98031 (206) 478-0633 3223059014 18311 -· 116TH AVE SE, RENTON, WI\ 98058 R-8-SO SOOS CREEK UTILITY DISTRICT 47,969 SF (1.1 ACRES) •M•->•·•••••Mo ,, -.:__ .. ·..:.. :,,:~:.tf:.:· .. :;·1!.\.~;/f;:Y-'f SHEET INDEX '--------- Cl COVER SHEET C2 EXISTING TOPOGRAPHY C3 EROSION CONTROL PLAN AND NOTES C4 EROSION CONTROL DETAILS C5 CG C7 CB C9 ROAD AND GRADING PLAN STORM DRAINAGE PLAN ROAD PROFILES ROAD AND STORM DRAINAGE DETAILS DETENTION VAULT PLAN & DETAILS C10 CHANNELIZATION PLAN Vicinity Map Sc.ale 1"=N/A lij .. !" ' _, ' ' _________ ___;, t_ __ Sl:.16011is1 -·-,··-· ' ' ,.,.) I I ····-···-·---··-' .. -. .1 ,, ' Scale 1"= i\l/A Notice Required Cont.oclors shall notify operators who maintain underground utility lines in the oreo of proposed excavation or blasting at least two business days, but not more than ten working days prior to commencement of excavation or demolition in accordance with RCW Title 19. Nornes and telephone numbers of the operators of underground utility lines in this project appear b8low. These numbers shall also be used to serve in on ernergency conditions as required. Phu11e Sanitary Sewer ---------- \Noter District Gos Company Power Company Call Before You Dig 1-800-424-5555 Notes 1. The Developer is required to notify the Land Use Services Division, Land Use Inspection Sectkn1 (206) 296-6642, three days prior to the beginning of construction for o preconstruction conference and specifically request inspection before begfnnlng: A. Installing slltotion and erosion control measures B. Clearing and grubbing C. Earthwork 0. Installation of any underground utility E. Before placing subbO$e, base or paving surfaces F. Installation of ony farms or placing any concrete 2. A permit must be obtolned from the office of the Resident Engineer, Washington State Department of Trnnsporlation, before any conslruclion is started on ony e~isling state route. .3. A Hydraulic Project Approval (HPA) Permit must be obloined from the Washinglon State Deporlrnent of Fisheries prior to any work when req1.1ired. Bonding Information Restoration Bond Amount $_ --------- Performance Bond Amount 1~------ Site Plan Approval P,;Jproval of these plans is for construction of road and drainage improvements, site drainage & grading and temporary erosion control in unincorporated King County only. These plans do not uu\horize uny other utility approval or improvements proposed in any State right of way. Site plan approval is void if \he commercial building permit has not been obtained or renewed within two years of approval. Subdivision pion approval is void if the final plat is not recorded prior to the preliminary plat approval expiration. PRO RATA SHARE ASSESSMENT ANALYSIS (County Use Only) Section Township Range Tax Parcel I NE I 32 I 23N I L 3223059014 J Site Location Is within the --------------drainage shed(s) Number 9014 J Pro Rato Shore Assessment(s) are: 0 Required D Not Required from the site due to development for increased storm waler runoff. Peak Runoff Assessment Rate($ ) per c.f.s. increoses,(10 year, 2 hour storm) Peak Volume Assessment Rote($ ) per Ac. Ft. increoses.(2 year, 2 hour storm) AGREEMENTS, PLAN REFERENCES, PERMITS ETC. (To be cornpleted by Consultant) Preliminary Plat Approval/Permit Issued Date: 11/9/2006 11 /9 /2011 __ Expiration Dote: Otl1er Related Perrr1it Nurnbers Received: f,ight--of-Way Use Permit Grodin g Bu ii ding/Structural Other Board feet of tree removal on site: <100 Cubic yards of material hauled on/off the site: 1,300 CUT ls this a highly sensitive area site? (Yes/1,o): NO Note: If "yes", per SWDNI Appendix D44 a Highly Sensitive Site Erosion Control Supervisor is required. See ESC plan. Dote E'merg e'ncy 911 Pol ice-Fire--Rescu e RECOMMENDED FOR APPROVAL (To be completed by King County) Engineer Pion Reviewer --·--·--- Engineer Supervisor Traffic & Planning Engineer Sensitive Areas Structural Review Engineer Other l.il King County APPROVED FOR CONSTRUCTION DEPARTMENT OF DEVELOPMENT & ENVIRONMENTAL SERVICES Date Q_ ii " '-'-'" Q) (]) +·' C C ~ ~ 3 2 0 0 >- 13J D Molly A. Johnson, P.E. Development Engineer PROJECT CONTACT INFORMATION (To be completed by Consultant) GEODATUM, INC. 425-837-·8083 Name Phone 1505 NW MALL STREET ISSAQUAH, ~IA 98027 Address and Zip Code D A Partnership 1Zl An Individual HARINDER BAPLA 206-478-0633 -------------------- Name Phone 9501 S. 207TH PL. KEl,T, WA 9.:=.80::::3:..:1 _____ _ Address and Zip Cade 1Zl A Corporation D A Partnership D An Individual '-GEODA TUM, INC. (1) ··--·" ----'------ 425-837-8083 u'------- <I! I;., 'i= 11) :~ > :!! l"ame Phone '-L 0, (]) :J L. C (JC!JQW 1505 N\V MALL STREET ISSAQUAH, VIA 98027 Address and Zip Cade (./) Ct:: w m 2. ::) z LJJ __ I LL (./) w 0 0 l"l co 0 co I Q) I'-C l"l 0 co ..c I o.. Lil N sq- L 0 0 -,~ 0'1 (JJ >- Ct'. ~ <( Ct'. ·a L 0 0 UJ > "~ = = (""-~! \C-- t"\J:: r.c: r".L -<( I-- cc 0 :c VJ w ,..,:; f-~ .d 0 ~ n -tj· 0 a::: (./) f'-. 0 -,J. '-QJ _Q E :J z >, lD 0 C) C) U) lD 0 _J • • L Q) _() E :J z +' u (]) (_'.) _J u >-0::'. +-' w f..) Q) :r: u ·~ 0 L ()_ (]) E 0 z ''-._ Cl) ·+' ·-f- +' u (j) ·~ 0 1- (1_ 0 L .~ C Q) E > +-' u <C ·~ CL 0 Q) > Q) 0 L (l_ 0 Sheet (~1 of 11 i:;.;~;:;;;;:;.;,;:::;i.-'-"-~~;;.:..;==i..:..:;:;;;;..i;:;...:=~==.;...====..;;.='"'-=..;.;... _____________________________________________________________________ ..;...;,__;._ ____ ...1.. _______________________________ ...Jt....---------------------------·-"-···---·-=· ··-·----' P: \05294 \dwg\3\plo_l \Engineering Plans 01-3CVR5294.0WG 4/20/2009 4: 51: 51 PM PDT .. ~-----.. -. --------. --- • --,-•--•••-rM • '· ,\1 l " ,_ 0 Q ::, Q ~ C ·c " " C ·a, ~ -a I I r I I I I I I • I I I I I I I I I r I I ! I I I 0 I~ -----,--------·------ 1 ····· I I I I I I I I L __ -~-.. ---··· ---·-·----·· , N 40 a I IJ __ 0 SE 182ND ST TRACT 'B' 10' PEDESTRIAN TRACT 927 S.F. D 117.04' D 1 ____ . _ 5' BSBL ________ / 81 ; g!ffi !if I I :fl ,f} I I in LOT 7 0 ; I 3,297 S.F. ~ / I / I I I I L _ _ __ _ _ 5' BSBL _____ j / I SE 1 / 4, NE 1 / 4, SEC 32,"rWN 23N, RGE 5E, W.M. END CONCRETE WALKWAY, BEGIN ASPHALT WALKWAY. & ,._ "-L=64.51' 42' RIGHT OF WAY Pf!DVIDED TO ACCOMODATE POTENTIAL FUTURE ROAD IMPROVEMENTS TRACT "A" LANDSCAPE TRACT (WITH DRAINAGE EASEMENT DEDICATED TO KING COUNTY) 5,375 S.F. ·J ,'J•» 7·1° .... , ... ,g, I I REMOVE/RECONSTRUCT EXISTING FENCE AT ./"'('I ROW LINE AS REQUIRED TO INSTALL NEW 12" __,,.-/' I SD OUTFALL COORDINATE Wl1li PROPERTY OWNER PRIOR TO BEGINNING CONSTRUCTION j I 10:1 ASPHALT lRASITION~- -:r----6 UNIT MAILBOX cau ,!:,. PER U.S. POS1MASTER ,o:.Yc,<> · I -' t:~a-~:~EE DETAIL. 11-IIS 1/.C.~E",-,:..· ..,IB!,laJ..lL' ---..,...,.--x..-JI...~--=/_"_,~<:,· /( i "-.. I< / R=164.29' "'-&°o t,,,,22'29'58" 0 --.. ¥ t ~======t==t===~r--· ---------------SE. 183RD CT. II •• ~ 11+00 • I I I I I I I I "'J'~ : v'1 I I I I ) I I I I -----3:;tp,-;;;. • (PUBLIC ROAD) __ _._ ----181.07' -I ---I') ,--------------, I 5' BSBL \ I ;1 \ V1 I "' \ I "S:. \ LOT 6 ) .I..J 4' ~ I Bl 3,967 S.F. ; .,,'.'i al I m ·/ " I "' (lb~~~"( I -<, b--f..,§:i" I ,c,'> I 'J •1)-I .cl' I 5' BS6•_ / ;,,"' '-·----------·---.....I N69"47'21"E 01.09' ----x ;,'. IA \ e];..,,-, -.,-¥% no' \, JJ-'). 0 55.00' /\'~,, / 10' BSBL 11 a.'l'iC "-/!', "'d -\1-.. v // --, r-----------l ~<sJs.2°• __..i_:o=-\..~d / I ~ o --o?>O· / I I ''"'5o-:0o,-----,, "' _,, ::;"'" I I I " --.. ...-, 'ii I -~ ---24.31' r ------- 1 1 O' 8SBL ..__ '°' I \\ I \ I Jo?"------_.,,.., .,.,,, "o I 1 &sel----1 r I 1:J._ I I io I / I I I~ I (:ii I :------c ;;SB_L ______ I 11 :~ : I : ; : LOT 1 I I I I I I : :_ 1' 1:z I It I I!;; I 4,134S.F. I LOT 5 I 8 I I I ..., I f;; I rrl LOT 2 rrl I ~ I ..., rrl I ": ffi 4,715 S.F. : .~ J..., LOT 4 ffi: ,w : ~ LOT 3 aJI 5 : ifl 4,277 S.F. : : ~ : ~ ;:: ": v, I~ 3,688 S.F. _ifll ~ I in 3,869 S.F. iflll z I ;o I I in I :g:: ~Ill'' I-"'15 I "' I I I I :,,~ 11"' 1z I 11 I I I I : "' I I I I I I I I • I : i 11 I I I I 11 I I I I I 5' BSBL ~-__ ----_________ } l~'_EJSBL _________ I L5_' ~.§B_L ________ I ____ s_· B_SB_L _ _ __ _ ________ J • __ _ __ L ________ 1:.;1:;;.3;,;i_' --·-,----':-:::--:::~:::::-:-_;s.;;s·;,;o.;;o· _____ ....J _____ .. s""o."'o ... o· _____ ...._ __ ,----~5o:;.;.o~o!..' --··--2::-"':'."'::-.-:,-:0-;;, _____ ...;s;::o;,.;.0;::0:..' --....1.+--tfr---'' SS!l'39'1 ?"\IJ -"'"' ·• 12' RIGHT OF WAY DEDICATION TO KING COUNTY PROPOSED STREET TR£E 40' ON CENTER (TYP.) 10:1 ASPHALT TRASITION BEGIN AT SOUTH SIDE OF DRIVEWAY APPROCH I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I : I I I I I ( I I I I I ,; I I : 1,: I' I I I I I ' I ' \ \ \ LEGAL DESCRIPTION THE EAST HALF OF THE NORTH HALF OF THE SOUTH HALF OF THE SOUTH HALF OF THE SOUTHEAST QUARTER OF THE NORTHEAST QUARTER F SECTION 32, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M., IN KING COUNTY, WASIIINGTON.; EXCEPT THE WEST 347 FEET THEREOF. BASIS OF BEARINGS ... ,,r· FOLJMD ,,,,, MONU!c1ENT ii 11'1 CASE \ I I I I I I I I I I I I . .I I .. "-! ,J .. • ·-1.: 10+0Q., ,) ,. -· .. ,. '. .1 ·.: I I I I I i i I I I ··! ·,, SECTION BRE,\KDOWN PER ROS: 8706090587 ACCEPTED THE BEARING OF 114TH AVENUE SE BASED ON FOUND MONUMENTS IN CASE. GENERAL NOTES -·-· FULL WID1li UVERLA Y MAYBE REQUIRED PER INSPECTOR. 1. THIS SURVEY WAS COMPLETED WITHOUT BENEFIT OF A CURRENT TITLE REPORT. EASEMENTS AND OTHER ENCUMBERANCES MAY EXIST ON THIS PROPERTY THAT ARE NOT SHOWN HEREON. 2. INSTRUMENTATION FOR THIS SURVEY WAS A 3-SECOND NIKON NPL 352 TOTAL STATION. PROCEDURES USED IN THIS SURVEY MEET OR EXCEED STANDARDS SET BY WAC 332-130-090. 3. THE INFORMATION ON THIS MAP REPRESENTS THE RESULTS OF A SURVEY MADE IN SEPTEMBER 2005 AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS EXISTING AT THAT TIME. 4. UTILITIES SHOWN ON THIS SURVEY ARE BASED UPON ABOVE GROUND OBSERVATIONS AND AS-BUILT PLANS WHERE AVAILABLE. ACTUAL LOCATIOi,IS OF UNDERGROUND UTILITIES MAY VARY AND UTILITIES NOT SHO\VN ON THIS SURVEY MAY EXIST ON THIS SITE . ALL MONUMENTS WERE LOCATED DURING THIS SURVEY UNLESS OTHERWISE NOTED, SAWCUT AND llEPLACE EX. I DRIVEWAY Pfll 2007 KCRS. --..___ CONCRETE TRANSITION RAMP, SEE KCRS DETAIL 3-014 ------1-12' DRIVEWAY CUT PER FIG 3-004-2007 KCRS. VAULT MAINTENANCE ACCESS PAD 20'x12'x12' DEP1li COMPACTED 3/4' MINUS W/ BOLLARDS, SEE DETAIL SHEET C6 -.......J..PRO?OSED NEW STREET TREE, SEE LANDSCAPE AND RECREA110N SPACE PLANS (SET NEW MONUMENT, TYPICAL 2 PLACES) "-'--10+00 SE 183RD CT.= 22+68.06 1161H AVE. SE EL 497.1± I , 1r-'1'-' ---Hl---~::::::::...L TRANSITION FROM ROLLED IJ.i < .-CURB CUL-DE-SAC TO > ~ . ,i VERTICAL CURB ALONG <( °'< :·: 1161H AVE SE AT Wi1EELCHAIR RAMP '. :r: er ,·, ::Co I •·· rz l_l.: co2. I ' ,- 11 1 · .. 11 "1 I 8 + N '" ' .,., ;I © ,. © ,( • d I I I I J . I J I I ,I i PER KCRS SECTION 4.01F, A 1" FULL WID1li OVERLAY SHALL SE REQUIRED. APPROPRIATE REPAIRS TO 1HE EX!BTING SUSGRADE BASE MATERIAL, SURF/1(1,.'G AND PRE-LEVEL MAY BE REQUIRE0 PRIOR TO PLACING 1HE OVERLAY. THE OVERLAY MAY BE WAIVEO ONLY UPON WRITTEN REQUEST AND AmR AN EVALUATION OF PAVEMENT CONDITION$ AND/OR CHANNELIZATION REOUIREt,lENTS HAVE BEEN COMPLETED AND APPROVED BY 1HE COUNTY ROAD ENGINEER OR DEVELOPMENT ENGINEER. .--,--·-CONCRETE TRANSITION RAMP, __...-SEE KCRS DETAIL .3-014 0 0 0 0 0 0 0 0 0 0 0 0 ] -~ Q\)\)Q EXPNISION JOINT --_~-~---1--J ,,--ANCHOR !IOLT r'ATIERN / PER N.O.C.8.U. PEOESJ"AL ~: : • ... • . ~,.,-,,-;:.'er,,~-1,.,l·,7;•· l,;,;p.,_.._'T':"EM~P~[i; . • ·• ."\, ··•. ...,. '.. l • ' • . • ' '·j. ~ .. :•·.~.-. ,; . . .. ·. -, . .r .. :}. \. :".~, '. .. C . ' .,( .:·. ;· ·.-:1·.' -- · ·i · -~,'.F·'~~~~--1 SEE tlOTt 110. 2 --~'·~-,-• .. _[ FRONT NOTES: 1. SEE SEC, 5.04, 2. INSTALLATION OF N.D.C.B.U. (INCLUDING CONS1RUCrtON OF BASE} WILL BE DONE BY U.S. POSTAL SERVlCE. 3. SEE SEC. 3.04 FOR JOINT REUUIREM£NrS. 1'-4-" I I f!.Atm/-10 ,· ~ lro .. • •• •• . \· . · .. ·• ' " """' NO. ' 'l'-7~ J.ITH, 5-'-0" ,Ct..EAH WIDTli I I . -·-···~ '-!C\.IITT '" PEDESTAL PROVlOED WITH N.D.C.B.U. U"1t sm,e ~'"' VARV.Sl.E EXl'fflSION JOINT. / ~ • -· -~ ' .. ·. ,''j .~ . .·.?-· ., . •;_J ·' .. . . • . • • ' • ' ' .. ' ~ .. ' .. .. . ' '· . .,_ .. • .. .. • ' . , .. • •· . .. ... • ' .,. • • .. J • ,.' .. ' ...... . . ' - / .• 'I>. . ·j .' .. . . , '. ~ : .. • NEIGHBORHOOD DELIVERY & COLLECTION BOX UNIT (N.D.C.B.U.) MAILBOX INSTALLATION NOTE: KING COUNTY DDES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY D,D,E.S. Review Engfneer Completed Date SE 186TH ST ' ·1 ~'131 , 49' i~ei!i'3i'il.f'E 0\1 i ·-, o:·~ '. _).~· ----+· r, ) 0 ·(-· Senior Engineer Completed Dato J_ N I\ ,------, L1 FOUl~D MONUMENt IN CASE MOLLY A. JOHNSON, P.E. DEVELOPMENT ENGINEER APPROVAL Data z 0 Vi ~ i -ss u, ,-z "' ::; :, 0 (J u, '" Cl Cl 0 "' w 0 ..... ~ "' I- <( _I CL I-a::: 0 :c en -I _I <C ~ "' "" Ul f--z "-' ::; :,. 0 <.) u, "' 0 Cl 0 "' co 0 ...... OJ '-ro z <( _. CL _. 0 f!: z () () ..J <( I-z 0 N -c.r: 0 I . ,-· -----.--- ' I " I ;/" ,o "' "' "" "" VJ ,-I=:! ~ U) ,- i:'i z z z w "' l" ::; ::; ::; ::; "' :, :, "' 0 0 0 0 <.) <.) <.) 0 VJ ff) ,n lfl w "' w "' 0 0 a 0 0 0 0 0 0 () (J ~' "' " "' " --- "' w w 0 s:. 0, ~ ,, z w "' ?1 N N ,,., ..... ..... -..... 0 -..... 0, ,--N Lu 00 (/) l{) • 0 ~ OCJ O> <( rE <( 3l: - (0 ft .... z .... ~ .,... ..-z t') w ro 0::: ...... DRAFTER: PG/CDM DESIGNER: PG • t 0 '-" 0: w Ul w "' "' f--,: 0 il' _, _J -< u z ::, ::, f--.,: 0 0 w t') ,0 0 0 N © PROJ. ENGR./SURV.; CLG DATE: 2-17-09 PROJECT NO.: 05294 SHEFT C2 OF 11 L06S0006 rn 0 0 ~ ~ .. N GRAPHIC SCALE 10 0 ID 20 ~~iii!'jj~',ij' aiiiiiiiiil EL l 40 I a I INCH = 20 FT. . ,1'/, /·\ . • ---i ' \'' !'·· (:<--·' ' . -~ . ; ',.:1---:\·;-:::o· ·~ '"1 '/,.· J ) ,- I . ··. I ·, ·-. i'-L~,:l-0 1 ·,.-:ti''!--. l ! I I I I I I SE 1/4, NE 1/4, SEC 32,TWN23N,RGE 5E, W.M. I,< ! ,· I . l··,'"j ,'' )/ ·.-' •,•'/, . ,' V/ i'.: "' I .. .• i/ (.', i/ . I . . .. •/ / '. ,' . '' ;,i [ r; . . ', 1 ~ I -·-·-·--·,,· ...•.. ,.· .. ·.· ... ·.·.· ... · ... _._·· .. ·.·,, '.' ',· -· -· . ·> , . -' :·.:.r::c.'.,,,:'.,·;.'./.' <.:, I ,· '.· ,·, '. ' , \ ' ! .•. ' .. ' .· '} ' • I • (· ', -o' , . SILT FENCE SEE DETAIL SHEET C4 I '· i ! , 'I ' l ' ,.;., .. -·. __ .. ~'""l""l:i"""::1""1:1""1:r--:i"""::i"""::r;ni"""::;,-,;r;r;HMi"""::i'"v-..,·.,.-..,-.,. ... .., .. ,.i"'i-·7· v)'"'I, .,.-'-'I··· ·ii'· ;,,·.,.,_'-'I .. ··,,.·""v'""v'""v'""v''v'v'v""v'"-:'/-v-v·"'· 'f:i····;,,·'f:i-v"1"°1 rrr ----x -----x --. ...!.....!.-iii __ ....... ...;.. .... ~,· -·-· ,·-· f / -~';"·,, .:.;, ~ !j i ' \ .... ,,.,, ! l·',,::-;Jt:__,.i -•. 'i ., (j ,,,··," '., ,, ' !"ii:-;1_.iJuou:;, ~-:- ' ' ' ; ~::;-.x ' 'I !. ' . I_ j ,... ' (/JI " • ! ,;;: ) .~ I ·,·-,., ' , ... , ' [,"J I ···-1 ) L • > •• • 1' • "' ., ' \ "/ _), .. , (" [··, ~ -,i-' ' ..... ,, . t,L,1.l\1·.;\I::. ,-· I--· . ,-..-"' ··-·--' ., ) SILT FENCE, SEE DETAIL SHEET C4 • ,,:; /,j' •, .· . -. i . ,, ., .... '· I ·-... ,, / • (t; <i ... . ~ ' 1··," . ·;) ,' . ·, :.'L~(l(i\1011::':, '·. <:.···,,,, \ •-, .. ; , -' •., ( '· (\ \ · I I L·• I •. _ I , EXISTING SHCll TO ' \ I ·, I \ BE REMOVED ; ,i 11:1 . ····----' PROPOSED FINISH GRADE CONTOURS~ -· ,• , •,-'"I !· Ii \ t I I ••• i ---'. ' -.~-,~-:. < "J . .. ' ... .-.<', ' ' -. ' ,, ,..I _:; (_ I , ' ' . ·. \ I ;1:;cid1·i,;tJ:-; '> . ' ' J .-' ·\\. '· '-.• _'I ·,i CLEARING LIMITS C PROP. LINE ' _', ' --,., . . ·.,,· :· ' ! ' ' I I i I ' I ' ' ' ' ' ' \ -:-.;-,;'''' ··-;_ ' ,· ,, [ '_1 FC 1·· i; 1iJ 1 :":•\ I ,;( . ·-' .. " .. , .. ., .. ,.,!"" ' r l :':, ' i SEDIMENT TRAP 749.SF SURFACE AREA SEE DETAIL SHEET C4 i I ' ' • TEMFORARY INTERCEPTOR SWALE W/ ROCK CHECK DAM ../, SEE DETAILS SHEET C4 ' • ' I I 1 Sll.T FENCE, SEE I DETAIL SHEET C4 ' \ . ·-, : '.:'C3E:;. ·!U ' ' . '! t f t . .. " -i'· ' iC \ I '" I I L ! 'I /,; !! ,, : ' i ' ; ; i '--'} : !·, I I I I I r \ I / _I ·-' ! ! ' r···- . l I /. : ' ... ·1' .1, "· , r, ,·;·, ' \ . ' • I ;: \ .. I ·, . ' ,. '·:; 1 · 1· ' I ,,. I i ' I ' \ ' ' ·/ .,I J .,, I "1· 1(,i I ,.I , .. _·, .. " • ,"> ·~.' - I.cl I _-,,s,. I I '· ·1 r:'··1 ,.,_, '" : . - :( \!/ " (, ,,, I 'I '• ' ' I ), .... I I I I : , < I r1. -I. ,,' Ii. f . - I ! . ' ·.' '. ! i r ' I I -1 • . .. --: I I . -, . I i i ' ' i I ;,' I I : '1 ' ;:- ! iJJ .. ) ,'' .\ i '· ·1·\ i :;.• I / .0 I , ·, Cl· ', ' I' I ·. \ . [ ··11 ;· i I I ! I ·' I , ' ;; . ' I ' I f I I I i I -1 I I .I ., I .fl I ' ' I ii ' I ,' . ' ' ,. ' • -' ., ' • w Cf) • w > <( I I I , ··1 '1· > I ,.1, I 1 \ .'i l -, _'> ' -! ' 1 / ',, I / ', .! ( ·-.' ! r.) ,t I i ' . i I I : I ' I ' I'! 'I I I I I I EROSION At;lD SEDIMENT CONTROL NOTES 8. ANY AREA NEEDING ESC MEASURES NOT REQUIRING IMMEDIATE ATTENnON SHALL BE ADDRESSED \\1THIN FIFTEEN (15) DAYS. CONSTRUCTION SEQUENCE 1. CONTRACTOR TO ARRANGE ANO ATIENO A PRE-CONSTRUCTION MEETING WITH KING COUNTY DOES. 1. 2. 3. 4. 5. 6. 7. APPROVAL OF THIS EROSION ANO SEDIMENT CONTROL (ESC) PLAN OOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (E.G., SIZE AND LOCATION OF ROADS, PIPES, RESTRICTORS, CHANNELS, RETENTION F AGILITIES, UTILITIES, ETC.). TH,: IMPLEMENTATION OF THESE ESC PLANS ANO 11-IE CONSTRUCTION. MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE ESC FACILITIES IS TIIE RESPONSIBILITY OF THE APPLICANT/ESC SUPERVISOR UNTIL ALL CONSTRUCllON IS APPROVED. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED BY A CONTINUOUS Lf.f,GTH OF SURVEY TAPE (OR FENCING, IF REQUIRED) PRIOR TO CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMlffiD. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR THE DURATION OF CONSTRUCTION. THE ESC FACILITIES SHOWN ON n11s PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION YnTH ALL CLEARING AfiD GRADING SO AS TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS MINIMIZED. THE ESC FACILITIES Si-101'/N ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING 11-IE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G., ADDlnONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT FENCES, ETC.). THE ESC FACILITIES SHALL BE INSPECTED DAILY BY THE APPLICANT/ESC SUPERVISOR AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF WEEKLY REVIEWS OF THE ESC FACILITIES DURING TIIE WET SEASON (OCT. 1 TO APRIL 30) AND OF MONTHLY REVIEWS DURING THE DRY SEASON (MAY 1 TO SEPT. 30). t,NY Af,EAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT \\1LL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON OR SEVEN DAYS DURING THE ORY SEASON SHALL BE IMMEDIATELY STABILIZED 111TH THE APf'FlOVED ESC METI·IODS (E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.). 9. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE P, MONTI1 OR \'!THIN FORTY-EIGHT (48) HOURS FOLL0\\1NG A STORM EVENT. 10. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A Ci\ TCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT-LADEN WATER INTO THE DOWNSTREAM SYSTEM. 11. STABILIZED CONSTRUCTION ENTRANCES AND ROADS SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS \'/ASH PADS. MAY BE REQUIRED TO ENSURE THAT ALL PAYED AREAS ARE KEPT CLEAN FOR THE DURATION OF THE PROJECT. 12. ANY PERMANENT FLOW CONTROL FACILITY USED AS A TEMPORARY SETILING BASIN SHALL BE MODIFIED 111TH THE NECESSARY EROSION CONTROL MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACllY. IF lHE FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM, lllE TEMPORARY FACILITY MUST BE GRADED SO THA r THE B01TOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GR/\DE OF 11-IE PERMANENT FACILITY. 13. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED AT A MINIMUM lHICl<NESS OF 2 TO 3 INCHES. 14. PRIOR TO TIJE BEGINNING OF THE \'/ET SEASON {OCT. 1 ), ALL DISTURBED AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE 'MNTER RAINS. DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. A SKETCH IAAP OF THOSE AREAS TO BE SEEDED AND ·n-10SE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITIED TO THE ODES INSPECTOR. TIJE DOES INSPECTOR CAN REQUIRE SEEDING OF ADDITIONAL AREAS IN ORDER TO PROJECT SURF ACE WATERS, ADJACENT PROPERTIES, OR DRAINAGE FACILITIES. 2. FLAG OR FENCE CLEARING LIMITS. 3. POST NOTICE OF CONSTRUCTION ACTIVITY SIGN 111TH NAME AND PHONE NUMBER OF ESC SUPERVISOR. 4. INSTALL CATCH BASIN PROTECTION IF REQUIRED. 5. GRADE ANO INSTALL CONSTRUCTION ENTRANCE(S). 6. INSTALL PERIMETER PROTECTION (SILT FENCE, BRUSH BARRIER, ETC.). 7. GRADE AND STABILIZE CONSTRUCTION SITE. 8. CONSTRUCT SURFACE \'/ATER CONTROLS SIMULTANEOUSLY 1\111-1 CLEARING ANO GRADING FOR PROJECT DEVELOPMENT. 9. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE 'MTH l<ING COUNTY STANDARDS AND MANUFACTURER'S RECOMMENDATIONS. 10. RELOCATE SURFACE WATER CONTROLS AND EROSION CONTROL MEASURES OR INSTALL NE\'/ MEASURES SO TIJAT AS SITE CONDlllONS CHANGE TI!E EROSION ANO SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE YnTH THE KING COUNTY EROSION AND SEDIMENT CONTROL STANDARDS. 11. COVER ALL AREAS THAT \'/ILL BE UNWORKED FOR MORE THAN SEVEN DAYS DURING THE DRY SEASON OR T\'10 DAYS DURING THE WET SEASON 111TH STRAW, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING OR EQUIVALENT. 12. STABILIZE ALL AREAS H1AT REACH FINAL GRADE WITHIN SEVEN DAYS. 13. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS. 14. UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST SE STABILIZED AND BEST MANAGEMENT PRACTICES REMOVED IF APPROPRIATE. i,nj . I ;u: le-m: ·-. I . : 1· .. ' : . ----.-.,, ""_".) . \ ·:;_;r. 180l!I St · . -"•---··· ••• .,.,~:.;:,-! /~.----,; _,. ,, ' . ( ,. ' ' ';::-::. ,-:~::..=: ~ ~ ·-~_) / ' ', \\ '·1 i, I . , ; \ -_ I t ! I • i \ . \ ,_, .:.; .. } ' '' ' " ' . ' :,: ' ' ' ,, ' ,' -·-~·--"·-' c:·-c .. -·-., i . ii ' .·' ( ' --·' , . ·--· --······ .. I t 66 l&filh f'I \.... __________ , ____ _ ) I_ I I [.~) ..--, ' ' .' T I r -\, ', .... -·, \ \ ·; • ,.I\! , I . ( ·• I • r-·-1 I . 1i LEGAL DESCRIPTION SCALE NTS LOT 4, BLOCK 2, LAKE UNION HEIGHTS ADDITION TO THE CITY OF SEATILE, ACCORDING TO THE PLAT THEREOF, RECORDED IN VOLUME 13 OF PLATS, PAGE 70, IN KING COUNTY, WASHINGTON. SITUATE IN TIJE CITY OF SEATTLE, COUNTY OF KING. STATE OF WASHINGTON PROJECT NARRATIVE THE PROPOSED SITE IS LOCATED EAST OF STATE HIGHWAY WA-515 IN RENTON WASHINGTON. THE SITE IS 1.1 ACRES IN SIZE AND INCLUDES A HOUSE AND DETACHED GARAGE. THE TOPOGRAPHY OF THE STIE AND SURROUNDING PROPERTIES GENTLY SLOPPES TO THE NORTHEAST. SURFICIAL SOILS CONSIST OF SIL TY SANDY LOAM. THERE ARE NO CRITICAL AREAS ON THE SITE SUCH AS HIGH EROSION RISK AREAS, WETLANDS, STREAMS, OR STEEP SLOPES (POTENTIAL LANDSLIDE AREA).. THE PROPJSED DEVELOPMENT CONSISTS OF A 7-LOT SHORT PLAT, STORMWATER :)£TENTION/WATER QUALITY FACILITY, CONSTRUCTION OF A NEW RESIDENTlAL STREET AND CUL-DE-SAC 'MTH SIDEWALK AND LANDSCAPING. A COMBINED STORMWATER DETENTION AND TREATMENT VAULT \\1LL BE CONSTRUCiED !N THE NORTHEAST CORNER OF THE SITE. NE\'/ SANITARY, ELECTRICAL, GAS AND STORM DRAIN UTILITlES WILL ALSO BE CONSTRUCTED. NOTE: KING COUNTY DDES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. ~~~====~ -------------~----------~---~--~ CONSTRUCTION SVIPPP REVIEW KING COUNTY D.D.E.S. REVIEW DATE ON-SITE INSPEGTION REVIEW DATE CONSTRUCTION S\'IPPP FIEVIEWER Review Engineer Senior Eng!noor MOLLY A. JOHNSON, P.E. DEVELOPMENT ENGINEER Completed Dote APPROVAL Dole SITE VOLUME CALCULATIONS CUT VOLUME FILL VOLUME NET VOLUME VAULT CUT (cu. YDS.) (CU. YDS.) (CU. YDS.) (CU. YDS.) ------------·------------- 532 431 101 CUT 1,200 CUT "ALL VOLUMES ARE APPROXIMATE AND REPRESENT FINISH GRADE TO EXISTING GRADE AS SHOWN. THE VOLUMES DO NOT INCLUDE STRIPPING, STRUCTURAL EXCAVATION, EXPANSION FACTOR OR ANY SOIL TYPE RESTRICTIONS. THE FILL VOLUMES HAVE INCLUDED A 10% TO COMPACTION FACTOR". U' I!:! - -----· ~ N "' :t "' "' as "" "" "" f!! f!! (/J (/J f!! U) t-t-t-z z z z z. z w w w w w w ::a ::a ::a ::a ::J. ;:, "' " ::s ::s " "' 0 0 0 0 0 0 0 0 " " () " U) u, u, I "' (/J (/J w w w w w '" 0 Q 0 0 Cl Cl Cl 0 0 0 0 0 Ll u 0 u 0 u "' "' :,: "' :,: :,: ~ "' Oil <O "' ~ 0 "' "' !c:. ~ ' -'(, '(. OJ "' "' "' !::!. !::!. "' Pl •• N , .. -,. ' ,, 0 -,, "' "' m ,-· -,, --------------~ 0 0 (/) <.O z <( _J (L ~ .t:. 0 F z ~ l.u 0::: u. z 0 r- (.) ::, fE (/) z 0 0 I") ·~ • j .. j ' ' 0::: I:;._: ._I(/) -ti _J DRAFTER: PG/CDM DESIGNER: PG PROcl. ENGl,./SURV.: CLG DATE: 2-17-09 PROJECT NO.: 05294· SHEET C3 OF 11 0 z L_ORS0006 0 0 "' ' -------------------------------------- -----------------------·----------------------------·--------------------------------------------------~----------- AS PER KING COUNTY ROAD STANDARDS, DRIVEWAYS SHALL BE PAVED TO THE EDGE OF R-0-W PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGING OF THE ROADWAY R -25' MIN. - IT IS RECOMMENDED THAT THE ENTRANCE GE CROWNED SO THAT RUNOFF DRAINS OFF THE PAD INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, /IS PER KING COUNTY ROAD STANDARDS 4" -8" QUARRY SP ALLS __ __,. GEO TEXTILE--_,, ' -0~· '\ ':> "' -'-....____.-PROVIDE FULL WIDTH OF 12" MIN. THICl<NESS t INGRESS/EGRESS AREA TEMPORARY GRAVEL CONSTRUCTION ENTRANCE NTS JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. / 6' MAX. / POST SPACING MAY BE INCREASED 2"x2" BY 14 Go. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER FABRIC -- TO 8' IF WIRE BACKING IS USED \, \ ,"x4" WOOD POSTS, STfEL FENCE NOTE: FILTER FABRIC FENCES SHALL BE POSTS, REBAR, OR EQUIVfa,LENT INSTALLED ALONG CONTOUR WHENEVER POSSIBLE SILT FENCE DETAIL NTS SILT FENCE NOTES: 1. SEE ADJACENT DETAIL 30-100 SIEVE SIZE FOR SILT FILM 2. THE GEOTEXTILE USED MUST MEET THE FOLLOWING SPECIFICATIONS: MIN -1 z :,;: N ' z ::a ' N ADS (ASTM 0-4751) WATER PERMITTIVITY (ASTM 0--4491) 50-100 SIEVE SIZE FOR OTHER FABRICS 0.02 SEC GRAB TENSILE STRE~IGTH (ASTM D-4632) GRAB TENSILE ELONGATION (ASTM 0-4632) ULTRAVIOLET RESISTANCE (ASTM D-4355) 180 LBS MIN. FOR EXTl!A STRENGTH FABRIC 100 LBS PER MINUTE STANDARD STRENGTH F.ABRIC 30% MAX. A COPY OF THE MANUFACTURERS' FABRIC SPECIFICATIONS MUST BE AVAILABLE ONSITE 3. STANDARD STRENGTH FABRIC REQUIRES WIRE B.ACKING TO INCREASE THE STRENGTH OF THE FENCE. WIRE BACKING OR CLOSER POST SPACING MAY BE REQUIRED FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE. 1. WHERE THE FENCE IS INSTALLED, THE SLOPE SHALL BE NO STEEPER THAN 2H: 1 V. POROUS BOTTOM/ INSERT NOTES NOTE: THIS DETAIL JS 01,LY SCHEMATIC. ANY INSERT IS AI_LOWED THAT HAS A MIN. 0.5 C.F. OF STORAGE, THE MEANS TO DEWATER THE STORED SEDIMENT, AN OVERFLOW, AND CAN BE EASILY MAll,ITAINED. 1) ANY ACCUMULATED SEDIMENT ON OR AROUND THE FILTER FABRIC PROTECTION SHALL BE REMOVED IMMEDIATELY. SEDIMENT SHALL NOT BE REMOVED WITH WATER, AND ALL SEDIMENT MUST BE DISPOSED OF AS FILL ON SITE OR HAULED OFF SITE. 2) ANY SEDIMENT IN THE CATCH BASIN INSERT SHALL BE REMOVED WHEN THE SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE STORAGE. 3) THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLAC[D AT LEAST MONTHLY. CATCH BASIN INSERT CROSS-SECTION NTS SE 1 /4, NE 1 /4, SEC 32, TWN 231\J, RGE 5E, W.M. EL ~ 498.50± ~3=~1V~AX. -~------ 3 5 '_r-:• ' ,) SURF/ICE AREA DETERMl~IED AT TOI> OF WEIR -....._____-.... l_..,4 '_M_I~--_--1......,_---i~ 1' MIN. 1.5' MIN I ' MIN. _49_5_.o ___ '----L FLAT BOTTO__f,I__ 3/4"-1.5" 2"-4" ROCI< RIPRAP \\I ASHED GRA \/EL NOTE: TRAP MAY BE FORMED BY BEflM OR HY PARTIAL OR COMPLETE EXCAVATION S[DIMENT TRAP ---- NTS GEOTEXTILE DISCHARGE TO STABILIZED CONVEYANCE, OUTLET OR LEVEL SPREADER 2: 1 MAX. SLOPE _ , LEVEL_ BOTTOM _ r"--m=mill I MIN I ~ -~ ------~--~ 11ffi111W111ill~ill;';';U l==I I '-rr-411 111 -:111lJ, ,,_, " ml IIJII I ITT-. ,,.C' t 2' MIN. SWALE SP/ICING DEPE~IDS ON SLOPE GR~DIENT lvlAINTENANCE S~[A~IDARDS:_ 1. DAMAGE RESULTING FROM RU!lOFF OR CONSTRUCTION ACTIVITY SHALL BE REPAIRED IMMEDIATELY. 2. IF THE FACILITIES DO NOT REGJI_ARLY RETAIN STORM RUNOFF, THE CAPACITY AND/OR FREQUENCY OF Tl-IE Dll<ES/SW/\LES SHALL BE INCREASED. INTERCEPTOR SWALE 1'.ITS ROCK MUST COl•APIFTELY COVER THE BOTTOM P,ND SIDES OF THE DITCH CHECK DAM CROS$ SECTION NTS 2: l SLOPES CHECI';_ DAM DETAIL NTS MAINTENANCE OF_ SILTATION BARRIERS: 1. SILTATION BARRIERS SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. CLOSE ATTENTION SHALL BE PAID TO THE REPAIR OF DAMAGED BALES, END RUNS AND UNDERCUTTING BENEATH BALES. NECESSARY REPAIRS TO BARRIERS OR REPLACEMENT OF BAI.ES SHALL BE ACCOMPLISHED PROMPTLY. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH RAINFALL. THEY MUST BE REMOVED WHEN THE LEVEL OF DEPOSITION REACHES APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE STRAW BALE BARRIER IS NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM TO THE EXISTING GRADE, PREPARED AND SEEDED. NOTES: 1. FENCING SHALL BE INSTALLED AS NECESSARY TO RESTRICT TRAFFIC TO THE CONSTRUCTION ENTRANCE. 2. WHENEVER POSSIBLE, THE ENTRANCE SI-I/ILL BE CONSTRUCTED ON A FIRM, COMPACTED SUBGRADE. THIS CAN SUBSTANTIALLY INCREASE THE EFFECTIVENESS OF THE PAD AND REDUCE THE NEED FOR MAINTENANCE. 3. INSTAI_LATION: THE AREA OF THE ENTRANCE SHOULD BE CLEARED OF ALL VEGETATION, ROOTS, AND OTHER OBJECTIONABLE MATERIALS. THE GRAVEL SHALL BE PLACED TO THE SPECIFIED DIMENSIONS. ANY DRAINAGE FACILITIES REQUIRED BECAUSE OF WASHING SHOULD BE CONSTRUCTED ACCORDING TO SPECIFICATIONS IN THE PLAN. IF WASH RACKS ARE USED, THEY SHOULD BE INSTALLED ACCORDING TO MANUFACTURER'S SPECIFIC/\ TIONS. 4. GEOTEXTILE: A. GRAB TENSIL STRENGTH (ASTM D 4751) 200 PSI Ml~I. B. GRAB TENSIL ELONGATION (ASTM D 4632) 30% MAX. C. MULLEN BURST STRENGTH (ASTM D 3786-SOA) 400 PSI MIN. D. AOS (ASTM D 4751) 20-45 (US STD SIEVE SIZE). 5. AGGREGATE: 4" TO 6" CRUSHED BALLAST ROCI<, OVER FILTER FABRIC. 6. ENTRANCE DIMENSIONS: THE AGGREGATE LAYER MUST BE AT LEAST 12 INCHES THICK. IT MUST EXTEl,D THE FULL WIDTH OF THE VEHICULAR INGRESS AND EGRESS AREA. THE LENGTH OF THE El'1TRANCE MUST BE AT LEAST 100 FEET. 7. WASHING: IF CONDITIONS ON THE SITE ARE SUCH THAT MOST OF THE MUD IS NOT REMOVED FROM VEHICLE TIRES BY CONTACT WITH THE GRAVEL, THEN THE TIRES MUST BE WASHED BEFORE VEHICLES ENTER A PUBLIC ROAD. WASH WATER MUST BE CARRIED AWAY FROM ENTRANCE TO A SETTLING AREA TO REMOVE SEDIMENT. A WASH RACK MAY ALSO BE USED TO MAKE WASHING MORE CONVENIENT AND EFFECTIVE. ,C;EQUIRED DURING WINTER CONSTRUCTION. 8. MAINTENANCE: THE ENTR/1.NCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVEl,T TRACKING OR r--LOW OF MUD ONTO f'UBLIC RIGHT-OF -WAYS. THIS MAY REQUIRE ;'ERIODIC TOP DF,ESSING WITH 2--INCH STONE. AS CONDITIONS DEMAND, AND REPAIR AND/OR CLEAN OUT ANY STRUCTURES USED TO TRAP SEDIMENT. ALL MATERIALS SPILLED, DROPPED, WASHED OR TRACKED FROM VEHICLES ONTO ROAD\VAY OR INTO STORM DRAINS MUST BE REMOVED IMMEDIATELY. EROSION AND SEDIMENT CONTROl_RECOMMENDED CONSTRUCTION SEQUENCE 1. PRE-CONSTRUCTION MEETING 2. POST SIGN WITH NAME AND PHON[ NUMBER OF ESC SUPERVISOR (MAY BE CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION SIGN) 3. FLAG OR FENCE CLEARING LIMITS 4. INSTALL CATCH BASIN PROTECTIOfl le REQUIRED 5. GRADE AND INSTALL CONSTRUCTION ENTRANCE 6. INSTALL PERIMETER PROTECTION(SIL T FENCE, BRUSH BARRIER, ETC) 7. CONSTRUCT SEDIMENT PONDS AND TRAPS 8. GRADE AND STABILIZE CONSTRUCTIC<0 ROADS 9. CONSTRUCT WATER CONTROLS (INTERCEPTOR DIKES, PIPE SLOPE DRAINS, ETC)SIMULTANIOUSL Y WITH CLEARING AND GRADING FOR PROJECT DEVELOPMENT 10. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH KING COUNTY STANDARDS AND MANUFACTURERS RECOMMENDATIONS 11. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANCE THE EROSION AND SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE WITH THE KING COUNTY EROSION AND SEDIMENT CONTROL STANDARDS 12. COVER ALL AREAS THAT WILL EIE UNWORl<ED FOR MORE THAN SEVEN DAYS DURING THE DRY SEASON OR TWO DAYS DURING THE VIET SEASON WITH STRAW, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING OR EQUIVALENT 13. STABILIZE ALL AREAS THAT REACH Fl1~Al_ GRADE WITHIN SEVEN DAYS 14. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS 15. UPON COMPLETION OF THE PROJECT, AIJ_ DISTURBED AREAS MUST BE STABILIZED AND BMP'S REl~OVED IF APPROPRIATE. STRUCTURAL.~N~O~T=E=S _____________________ _ 1. THESE PLAl~S ARE APPROVED FOR STANDARD ROAD AND DRAINAGE IMPROVEMENTS ONLY. PLANS FOR STRUCTURES SUCH PS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE SEPARATE REI/IEV/ AND APPROVAL BY ODES PRIOR TO INSTRUCTION. (l<CC 16.04. 16. 70, 14.20) 2. ROCK ERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCl<ERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCl<ERIES IN COUl~TY ROAD RIGHT-OF-\VAY SHAI_L BE CONSTRUCTED IN ACCORDANCE WITH KCRS. ROCl<ERIES OUTSIDE OF THE ROAD RIGHT-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE. NOTE: KING COUNTY ODES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY D.D.E.S. Review Engineer Completed Dnle Senior Engineer Completed Dote MOLLY A. JOHNSON, P.E. APPROVAL Dote DEVELOPMENT ENGINEER 5 iii 5 w "' I" < 0 --r· I I r 'IC I" z w :,; "' 0 u (/) w 0 a u "' --- "' 0 '-N ,, "' 1-- <( __ J o_ l- o::: 0 I e,r) -r:: __J <( 2 - N "ts V1 I-z w :,; "' 0 u Ul w 0 a u "' ·--- "' 0 ' G) r ,, 00 (j) _J ---<( I-w 0 0 z <( (/) Lu I- 0 z _J 0 n:: I-z 0 u z 0 <n 0 Ct'. w 0 ?'" <( Q_ Q_ (l_ $ (j) --- " .. "' <D "" "' -"il.~ as V1 //) I" rn f->--r z z z z w w w w :,; :,; :,; "' " " " " 0 0 0 0 u u u u "' Ul Ul "' w w w '"' a a 0 0 a 0 0 0 u u u u "' "' "' "' ---- "' co "' 0 0 a, 0 " '-._ .[;?_ " co u, 0) 0/ ,, "' !i::. '· ,, ~ 0 ,-m -r N L,J O'.) (j) LC') 0 ~ c:o CT) <( <( I $ I- (!) " ,-z ~ 0 ~ I-,·-z I") w co n:: ..- CD 0 0 0 (j) (!) 0 ~ I") -sj- 0. n:: (f) f' o-· _I 0 w > "' w "' w "' Ul ,_ I ('.) l< _, _, <( ,j " :, C, ,- <( 0 0 '" ,~ <Ii' 0 0 N © f---·----·---·----l Di'i<IFTER: PG/CDl•A DESIGNER: PG PR·JJ. ENGil./SURV.: CLG DATE: 2-17-09 PROJECT MO.: 05294 SHEET C 4 OF 11 I I I I ' I I ' ., ' ' cl 10 0 """-...i we• SE 1 / 4, NE 1 / 4, SEC 32, TWN 23N, RGE 5E, W.M. R/W 34' R/W N ti. 42' TOTAL NEW ROW R/W R/W ------=----'-'="----'-=--""=-------~-11--~ (' 11 ' R/W 11 ' w z ::J w z SAN. SEWER ON SOUTH :, & WEST SIDE OF SJREET. ;, 22' !30• EXISTING ROW 5' 0.5'1i.------~------="-----------1 IDEWALK -' ' ei ~ I 0 ' X ~ I 11,5' I 7.3'-9' W 10.5 GRAf'HIC SCALE .r SEE SEC. 8.02C ~ --1-----1--1 ' SAWCUT 10 20 .J SLM 40 j 1 INCH -20 FT. WATER LINES ON -· NORTH & EAST SIDE OF ROAD. SEE SEC. 8.02A 1'-6" CATCH BASIN & _ _,, STORM SEWERS 5'-o" .,..~ .. --·-. 02 FT. FT. SUBGRADE SLOPE 0.02 FT/FT. ' 5'-0" MIN. .02 fT, FT, ' !, ,, ~ 1'-s" 1'-s" '------ROLL.ED CURB. SEE DWG. NO. 3-·002 '-----GAS LINES ON SOUTH & WEST SIDE Of STREET. SEE SEC. B.02A 2" COMPACTED DEPTH HMA (CL 1 /2") NOTE: SEE SHEET C 10 FOR FUTURE LINE CONFIGURATION. 2% CEMEllT CONCRETE VERTICAL CURB AND GUTI'ER KING COUNTY' 3-002 & 3-004 FOR DETAIL SEE SHEET CB VARIES VARIES EXISTING 2" COMPACTED DEPTH 4" COMPACTED DEPTH HMA (CL 1/2") OVER HMA (CL 3/4" Oil 1") 9" COMPACTED DEPTH CRUSHED SURFACING BASE COURSE _ .. SUBGRADE COMPACTED TO 95% MAX DENSITY' (STD. PROCTOR) (1YP.) SE 183RD COURT 4" COMPACTED DEPTH HMA (CL 1 ") SUBGRADE COMPACTED TO 95% MAXIMUM DENS11Y (STD. PROCTOR) , .. · , . r 11 \ i J 116TH AVE. SE. '.! TRACT 'B' 1 O' PEDESTRIAN TRACT 927 S.F. i I I N.T.S. ' ' ' \'. ,. PAVEMENT NOTE 1. PER KCRS. SECTION 4.01F, A 1" FULL WIDTH OVERLAY SHALL BE REQUIRED. APPROPRIATE REPAIRS TO THE EXISTING SUBGRADE, BASE MATERIAL, SURFACING ANO PRE-LEVEL MAY BE REQUIRED PRIOR TO PLACING THE OVERLAY. THE OVERLAY MAY BE WAIVED ONLY UPON WRITTEN REQUEST AND AF1ER AN EVALUATION OF PAVEMENTCONDITIONS AND/OR CHANNELIZATION REQUIREMENTS HAS BEEN COMPLETED AND APPROVED BY IHE COUNTY ROA:J ENGINEER OR DEVELOPMENT ENGINEER. i q' i' •, J I <fi· ,;-·':"!---------l----·1-i ' i '·1 . i\ r ·· ... _. i' I ,' I I I. \\ 1,, _,; I ~· ', \ ,n ' I ' I I 11 '.: "' r--::--·rc;--· I .:-:( pi!\'</\ OJ 1:·J i II ·:.·r V::F -!~'::' i;:!_,:\ril __ l//, }~:: ·--, I 1; /. : I \\' ~ _:~::: IJ __ l, r I/ \ l<,11• .. 1·--"I: •.•. _}1..1 ' ·1 ,_ I ' \ ,, . lri\:' j•j "'' ~1n/.C1() ' ·:.i\:'; ,:: _j_.:' 1tw: l r!_.(,·-1" .1 ;;1.,'.',,,,)::"'11,1:c),, :,r······· r I /:J ,)? : !:}Y:,[ )J ROR:MJ:/:i~~~J~~:~grT~X:~~~'lt[~NE'; 1~! / .• i Ii, ! . . 1 ! h,ji iUil\ 1.,i: ,/.; [ i>: /I SD OUTFALL COORDINATE 111TH PROPERTY' /1.,:. ''., • ' • i : I t) {i OWNER PRIOR TO BEGINNING CONSTRUCllON ... · ,). II, : i I :,' ,,,,· ! '1· f " '1 ·< ,..,.[ . I i,: i, :) ·-. -i I ', ,'.., i \ ,·1-I . ' I r::; / /i , I! J t I 42' Rib 1T OF V/AY PRDv1DED TO ,: ,/ ;, •, · I ' , ' i II J • : i , ~ , ' ~( '•, l I'< ,.> ,-. ACCOMbDATE POTENllAL FUTURE . • I'•' '·, 1 ,.. 1 ·• : ··a' s· · s'a1 I ~ , f -,'-( I END CONCRETE \'/ALK ",:'A,,Y, ..•. , . ,{:;-\::::,:: 1 ' // ~?~9~l'JPPROVEMENTS ' ,',:._,_:,: ; ' 1 O: 1 ASPHALT TRASITION -------r:-!: I ' J I ' I j ."!. I "14961.0T / : BEGIN ASPHALT V/ALKViAY. . ROCKERY END ROCKERY MID ROCKERY END,\} T J:r,i 1[1··. 4 ) 5~j~/ '. "'· ,1 J-1~'-- I" TOP·5D40± TOP:502.8± TOP,499.0f---'~;-, .. , . ·,!,., · ,,,,; 1 ' I', / i , sori'o~i 502'7± i \ aonoM, 500.4±. BOTTOM, 498.0± -,ii :: .:r 1 · · '1• .; ·1 I .:.: .. · :·, '· .'\ HEIG.HT:1:3,: ... :-',\. / HEIGHT:2.4± HEIGHT:1.0ic 1 ,'1 fil··· i : ._ ;~ 1,'. '," '1 \ -.... , .-·:(i:j\ \\ _.';a"l", L I· [, -1· I j, -., f' 1·1' ·.·,·1·f',\"/'·i1"·: ·---'-'1 'If''',.,,,, /!..-~-~--'' -~I 1 ··-i:,,. I ii' l . I D '/ _1/_·--~-~ " '" ' --~--,' ---I ( :: t ' ... " ·········-., ·:, -"' ~ "C!; I. ''· ,.••• ····· .. ···· . ', ::..~:_-... ·. · .. ,, .. , ••· ... · ';' I ;; ;',~--1 ·-!,_~.· Ji:'~' I . i i'. I ~// SECTION A N.T.S. ' .. i:ail;f j1 ,, i:;o 4 :.;t_{_\.::::~:;;;i;:;:~:7/:~~:;;:,:~;:;::, -7.-.. ·::,<i.~if~:;;.l~Nt . . ® .. ,-.... . -.. ~: .. ~s,c = @mi1-=·--= ~-•-:-·--q·=~r~~~~-· ---. -----~-. -·~-'" V' ., 1-. -I ' ti FULL WIDTH OVERlA y =..-.::.o,tic:c:. D -· ~ .... , •••• ·<··, , . ' ', •"-Q O . . : •. : .. /.' 1·0 ·0 ~.• .... ""_.w __ -li!,' ._ .... '· -:c--.,.· .. • · .. I I I ' INSPECTOR. ,': _____ ~'_E!SBL _____ .. _._ .. -l1J;;7 , .. '\·/,,.\,(',:, :.>re,;.:•, 't;.._·7;'·(~ ~ .... ·-~!,. -~ A"'NDTRSCA,ACPTE:;;ATR"Ac·'T''.;;., ,.,,,,,, .. ,,, .. ,, . 1-. ir;,1li: 11149-~~z_::_-L_" ~SAWCUTAND REPLACE EX. -. -~-SQ4B8 ' ' ,.·. J ··:'·''• ,', .... 11.·,1.,,,.· .. ,'.·.··.·' .. ' .. ,.,., ,',, !DRIVEWAY PER 2007 VCRS. 1 ·-" \-·.,. 1 ~1 / , >· :.:·,.. 1 <r /fuJ,): 'L V :-\ -.··· ... _.: .• ,-. -, · .•. ···c 1TH oRAINA ... GE tAsEMENT -· " I ..J ,_, ~; , • ,7.. 50il::9B . \. '? ··. . . 1 ... , ) 0-0 l,,'·t· , , 11 ., . I I ·1 '• .. J ,\ .. CONCRETE TRANSITION RAMP, SEE m 9J .. . • · · · ,· e · 1.., \ · 1'.:\D DICATED 'TO KING COUNTY a "-.•. './, "'·[1 1 • 9!l,9 ·1 ... c. ... ' KCRS DETAIL 3-014 ,o ;:: , -----~--,-]"· " ' --· ~ . : .· .. · ·· • •, · -I D . D ----- ---7 I if} I (g I b I ~ I I I I J -\ I ti, \ 'I}, \ ~~ \ I ... I •, .', . ,'.·/· 1-7 '.:_ \ J '. t6" > I • . : 'A.', I \ \~ ' -. --·- '\ ----. i .. , - SPOT ELVATION DETAIL >< ---.. ·--. - ·· .. -~~1CJ<f~i)4E~£ BOTTOM, 502. 7± HEIGHT: 1,3cl; I ' 5' BSBL/ -, . ----------r-----', . I[ 504.79 . ····1.· . I[ 504.69 . ' ' ., I:, .. . '·oo 'ti-•,, /8 I TRACT "A" ANDSCAPE TR .. r ' I I ', r--- -"" f,2 z w "' ;;, () 0 VJ w a Cl u "' -.. co 0 ...._ N ...._ lf) ··" s - lil, In r-z w "' ::, 0 0 VJ w 0 0 u "' "' s?. "' -' co s,/, f,2 z w "' "' 8 ,n w a a u "' co ~ a, ~ "' -----1--1 - co 0 0 0 (/) co 0 I~ LOT 7 "l{J/ffi},' ".'.·, Ii .. /i[,,."? .. •t 50i4'79 ··: 0 ~ •t~:'., '~i-'c::-. 5 •375 S.F. J!'J :J'!i / 12' DRIVE\VAYCLIT I ~ ...., ,,,-,,. ,,, ec, ' • ' I • .,. . • , , , • ,., ·., c;,• I '/ + I ([) ) 3,297 S.F. :',1(1 ,:ci\ 1 --. ~ ~ ::: IL~( .. :;;;;,.,, , 1, 0 . ·., .· 604 . 69 · ' .sa, .. , (:·i ~ (wi , 1; . ~ '.;/ I I PER F1G 3-oo4 2007 KCRS. \ I ~ l-e, "- :::s "' 00 ~ cu ['·· .. 5' BSBL j ' ) .·. \, ·_: .. '''\ /'\. -. -' t·~ i·oo ,· r t.=22·29•55".' ·. , ',L ·:. •• \ ... • •• .d: , . :4. : · '(~ · · ',f • • 'f;...t"\G .. ; :, !1 ;;"::' L _______ ...... -~-\-->I' .. ·.,:\,·' /_i\\ //·.~~-/ __ .••.•••••.. , ... ·.··-···· .·_·_.·,· II ... ~.:1·+: ... ·--:··~: ·'•_'_~;''_~;·~ .·· -~~,~rY·/.; /,: !~~~Ti!(t496.92 I) .,.-.,, t.;.i'~ --1 .. 11' .-, __ . _ _i_ .. :_· _;_,:_~~ . . ' ' ,... s ~ ~ 1__;_;-; ..-' :..____.__ -· 497,?4·::~ -.. +-~z.a~--.---·-·--,tl ("'e,~ ---'''1" ·-\--r ,-: , ,._ ,_ --1 \ . . l[_•_so,4.9~ . · 1 I .··, .. · .. · .... _ .· ~_ •.. -~_,_-_"·. '/.:·_,._· .-•. ·-.,, _-'.,_.·.·. ··. · ... -.-.--ii' -,..-,(PUBL1ol" o·A·o-) ..,--,-1 +60,1 ___ '-'-··----·. , . ·_.. -• . : ·,, >,·.: 1,: 10 oo,/ l·.·1/1:,/_,,,;' .. ,,. Ptc1c_j5' BSBL.f"\i:(:il--·-· \ 010 ·. \ ... · -~ / 1, -/~.,,,~ ' •. , ' · -' . -I ";'k . ~ , --' ' · , \ ~ ~ .. , 'y/ I' ,. ''i'i'r"'I''"' I ., r -·--.1~;~~: ~ I . ,, ·. --ti . ·. .. ·.· -; 1~»3/ .. -, "''/ J>-< ;r;-,----,,,mmr,r--n"'~,r"-,--,,,,,,...-.,,.,,_.ac,,-,--------,;>.,-',-,_,.~, '"lm;;': ! ; I r,,. 497 41 (~--~-- ' , , , · .~::.,·;,o, . ' I I I 1 't:_ • '-· ,, . ·.,,... n \.--: . 11 ·1·' .. ' IC.,··''· LOT 6 ) ·.. ,'i: ' I .}! I[ 504.79 .. : ;,· . 1 II~'•:... :, .. 1"'1 . ! ' 'i ' :,i_,: '.',: ,'_,., w ,.:11· I c,,_·1'lruui ·c.,1 3,967 S.F. / '. .. :;,:~:. II /. ;)}''"' · :>/, .,-f"f"1·" . "' 1·'n·. ·. ,1.i\ .. , 1 ·1·' ~ '\ ', 1'•),).[l":'.:fi '. . '"r-' ,;.•·· ' '.r··) .' "·1 ,;·r 'i! ' . ,, ' I . I (_ \ 1': <t .... c'!-.~:~; ' ~111:;.~~'i,'>:r:_,;:,·· .... ~.~-·-).c..,.:,~~1, 1,r: , .... )\-1 r ____ 10'\,ss _____ l ·isro,~~l=<I~·.\,·~ ·-· . .-·:--;,t,·i_dli.,),1-·-.~ !)I 1· ' .Qc:\>-,,t·~} ::...·, ,-)f;·-~,_)' . ,-;:~:-~~·±-,1 ___ ._.;;,;,;;,,;.-M·.,;,·, ,. . . :/i1 .,. -'-. c'-500 I ', I ,.., ..... ~ °" . ,.·, iJ I.Llffi ~J,;i\ o\'>'·'(,j--> .. I 0-1c" ·(: \rti\JJ;· i!,l:1,,_'> 1-.'."_::~-,'; -;,:'.{/2:'L,;:'·~,-·_::_,;'i, _.,,,"/ I ~ '· '-, \ .:·, > .... ; •',\ i •. ,·.,, -f ,,, -. 7l ) c· , , I I / I -.. , -,·1 · I .---~ r-~~---·:: :\~,:;.:·.. I I ·=· :;: ;' < ~ z·:t .... ·~,.,1 '\\,~'-1.a:1 -~,) I Uec:1duo1./S(~> ...... .,_ ·:.;)_i· I 1_ ,,")',''v --.. , 1,·.,_ .... _ I • :_,10: .. 1 .. ,iJ I \ ,, \ ,. ·.:::~, l~·-"··-'1497,29 Ct'.'. r1 .. 1 ' _/ -~;1.J, .J \/ I .,-J s•· 'BsaL\ / J; "',,,.;~ 'o l...~.-!...:1 ,1 __:, • _.' '·, /,, \ 1 -.. ti,. 1;'":.,.,. °'~\., ., 1 .. ,;: , I ··[ \ \ to"' · . __ :.·.~1 __ .. 1 :_·1, :C oz ,; .... :,. ' ,.,. ,... ·, ...../ -:-_.,.. .:,1·-......._.... ...1. \ ./\ , ---· ! ..--.,...... ~ ·v-1t.-.:_~::~·---. -::=:~'.·,..1 ;.:: ,l_\, ... <.:., I I 11·... '. I i-.c: .rl_..7.'." ... :7'_,-.. ,,· .. --:=_::::-' ----.. --I ., 10·----·-... .. -, •, . c· \ ' -\'-.l "• .. ,;·:..---1---'-. '·I I \.._ :.'· __ ::,4 ;_.. ! 1,. ,_ ;=:_ -" · ... :.,, a:s: ---~) 'i 1•· •. r ~ ) -,~~,,-.. ·· ', 1 ·"1 I I ' · ~ -· / .l \ 'BL ·s-..--,,.. .:.:..._ 1 1:,:!.'-"L, .~-,~--... _~·:~··t.:,.· ...... \ .. J \ \ I ~~ · . ./ -/~ r-I ·! ., f-·3'-.!;:<. '--... , / / (_) '.)()" s I --· ... j ;(;'.°".', • -,,\ .-··/~-' '1·· ·-, -:~:,c{/~;,... j I I '· .. , 'J, i ' ( ( ~ ··-., __ -;___:.__")'_: 1-~::.. I -._' ' / "1 • I' . 1· ' I .,... -l " I I . ·.,_j. ,··1· r,' BS 49B.26 ·.·.,_·.·. .. ( r;:'.,(... ·-~ 5' BSBL -,.... I r \:>; \ .Jf;c;c: iJC'.1,!((:,=' I D1c:.:it(1:1:J',.i:/ ;. !:.J .-), i <, . ', I I\ I ' ,-':, , I c,,, I . .,. --,of· I ' .,. ,'i u ,1o.ci,. ,:i,,11"s '· . ,:,.-..(-.. I LOT 1 I ,, ·, ·] / .' I[ 497.64 ,i • 11 ° 30 " .. ;~ LOT 5 \ 11 '-1+:-_,..,., .::;· t, ::::::::=:::::*., =!~~=~~ :l Deciduous," \ '/1 -~· "'.//!ii .. ··· ·~· \ '1 "'1, .. : 15 ... -... f' 4,715 S.F. ~: m I g:i LOT 3 m ~.277 S.F. ".. I ru , _ ., /i/-i.J !i 1\~ )!; L,jill ,j aJ\[ :~ 3,688 S.F. ![ 1 •n 3,869 S.F. ![ :,n POTEifn~~o~iwA~1[ -:"'--~~. )-~ . , ·'. ·' ';;ll· iii"t,<;~.:7'~ ,i r;,, I in ~ I, I in lc'fi''J I : I II DIS~~~SjON TRENCHEr[I .j.._[ -----I ''1f:-: .. ' :: } i :I . . I ,-- : I i I I VAULT MAINTENANCE ACCESS PAD 20'x12'x12° DEPTH COMPACTED 3/4" MINUS. PROPOSED NEW SlREET TREE, SEE LANDSCAPE AND RECREATION SPACE PLANS (SET NEW MONUMENT, TYPICAL 2 PLACES) '-'-10+00 SE 183RD CT,= 22+68.06 116TH AVE. SE EL 497.1± TRANSITION FROM ROLLED CURB CUL-DE-SAC TO VERTICAL CURB ALONG 116TH AVE SE AT WHEELCHAIR RAMP PER KCRS SECTION 4.01F, A 1" FULL \\1DTH OVERLAY SHALL BE REQUIRED. APPROPRIATE REPAIRS TO THE EXISTING SUBGRADE BASE MATERIAL, SURFACING AND PRE-LEVEL MAY BE REQUIRED PRIOR TO PLACING lHE OVERLAY. 1HE '---±..-OVERLAY MAY BE WAIVED ONLY UPON WRITTEN REQUEST AND AFTER AN EVALUATION OF PAVEMENT CONDITIONS AND/OR CHANNElJZAllON REQUIREMENTS HAVE BEEN COMPLETED AND APPROVED BY THE COUNTY' ROAD ENGINEER OR DEVELOPMENT ENGINEER. ....,.--1·-CONCRETE TRANSITION RAMP, SEE KCRS DETAIL 3-014 0 "' 0 0 DJ I inl\ I ,!'.:. '~,.., \.· I I i;' ''· I I -.... /~ 1·, --,1.:1, ... ,;,' '·. ·1 l.--,. I I ', I I I r,, .. i..J(liu:ci I I " :I ·. ~' ,.. I ;;:,.,f.-j :;'1 / I I i ,,, ..... __ : I I ! 1 I . "'r I '' · '·····,,··11''/'\' ··· I I I :1 I 25'FLOW .·.:~:.:_,~:1.i · .. ,,//-___ . ·1·"',1 , .. [J) I I ·.1 ',.',\\,,,i.,i',: ... ,··,· .I.I/.. I ,/\, I : I I ~ [PATH ,,,. ··fl,.· I 1,,._J1:'I ·----. ·: _. ,, I I (5' BSBL);j'\.;ti{i:~,ti;";,,;~,, I L5' 8SBL' iii\ ____ [ ____ 5:_BSBL , 1_5' BSBL _11 _C:,.,_)'--->;.. -+-: ~rit,49808 1··\,1... . . .'o\ L ---··-----· --------_ .. _:: _-.-_:·.·'.' .. -.. ~~~:;/~~/)fl~l,)~i~~~;/ilJ)Ti:~~~-i_::_. . ......... ----· .. ---------,_.--.............. ______ ..... _, __ . ,,· ......... -......... [ ,, ' ---~ 'I ..... ~·· -~ ,i) 11 . :~--f1 .. :~;j/:~::f 'j 'l··:;.' -------------""i"-----.L,:·.;,--:::"',, 1 "'.-"'j:,-:,.,.- 1 -,1 ::-.. ,"',,,.f~~.i4. W¥,.~1~1~,""-:..;.;.... ..... ...1 .... ..;.;. ..................... ....;.;... .............. .i....;. ........................ ;.. ............. ~'.':?~nti:)·· .. 7':1.c~, --==-t, ~-,,'""'._:::·\"' . .,.,. ............ '1 .... ~ 1 , 1 .-.r 11 1 --r I 1 ;~49a,4a r , --·-. . • \ : 'il 'i\ r . r -1~ ;l,~61.72 i i ·, i' !e1 I I 1· 11 •I. i I ~ 1 12' RIGHT OF VIAY /' ' . ! :z•' .'.. · 1 . 1 ·/ 0 •1 ~\.-,. ii '1 j 'II I' i, DEDICATION TO ,:,_ .::'._:,1 -,11 1 · ! ::;f1 · i , 1,'.i';;;;i':o / rRoro~::8 s:::1:~EE _ i /l !: I { 1 I \ J ,, 1..:J;;)'J':i' ., 40' ON CENTER. (TYP.) '·, 1 ' I • 0 .-~/,,.· ---------------------------------~ r i ·.:1 !'r----SITE VOLUME CALCULATIONS ·.,(,/ ,/ii'I ~1]i~~:i~1~ 'b. 1 /I 0, I: I , ' I ! l::'. -l::'. ·-----.-------•· ! --~ I I I I \i; I iill\IION (116TH) 22+20.45 l\=91 '35'57" R=35.00' L=55.95' (SE 183RD CT.)10+58.31 STA'TION (116TH) 23+12.49 l\=88'24'03" R=3a.OO' L=54.00' (SE 183RD CT.)10+55.74 5TA]ON (SE. 183RD CT.)11+32.16 l\=65'35'15" R=35.oo· L-40.07' (SE. 183RD CT.)11+ 71.35 (SE. (SE. STA]ON 183RD CT.)11+53.89 !Y=,36'20'15" R=35.00' L=21.88' 183RD CT.)11+71.25 OFFSET TO BOC 22.0' LT. 11.0' LT. 1/4A 1/2A 3/4A CURB RETURN & _Q!I$J;J~.,I.Q_fil!Q 22.0 LT. 11.0' RT. 1/411 1/2A 3/411 QURB REJURN ffi OFFSET TO BOC 10.0' RT. 27.38' RT. 1/411 1/2,', 3/41, CURB Bt:JURN ffi OFFSET IO BOC 10.65' RT. 21.61' RT. 1/4A 1/2A 3/4l> EL, @_f!Q.~ 497.34 497.35 497.35 497.36 497.37 1':L, @ aoc 496.01 496.33 496.65 496.96 497.28 EL, @ BOC 502.76 503.42 504.20 504,21 504.69 EL, @ BOC 504.65 504.73 504.84 504.73 504.69 " LOT NOTE: KING COUNTY DOES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY D.D.E.S. i CUT VOLUME FILL VOLUME NET VOLUME VAULT CUT i if ,,. 111-----..:.(C_'_U_. _Y_D_s_.) ____ (_cu_. _Y_D_S_.) ____ (c_u_. _Y_D_S_.) _____ (_c_u_._Y_D_S_._)_ I, ii ' .. '11'>: I Review Engine,, Comploled Dal_, I l-o:: 0 :c (/) -I a _. <( <( 0 :::E 0:: DR/.\FTEH: w CX) U) LO •O ~ 00 <( 0} < rE 3,-; co .- t') c!; i I 0::: '.J ... '. ,i (/) § PG/CDtv1 1 s:i2 431 101 cuT 1,200 cuT Ii . ,I/ ,;r;,i'.i I DESIGNER: PG j 1 [ I Senior Engineer Completed Dato PRO,J. ENGR./SURV.: CLG !/' 1 8 I DATE: 2-17-09 J: "ALL VOLUMES ARE APPROXIMATE AND F,EPRESENT FINISH GRADE TO EXISTING ~ MOLLY A. JOHNSON, P.E. APPROVAL Dato PROJECT NO.-. Q•,?_94 ~ GRADE AS SI IOWN. DEVELOPMENT ENGINEER ~'- ? THE VOLUMES DO NOT INCLUDE STRIPPING, STRUCTURAL EXCAVATION, EXPANSIO~l Sl·'EET C5 OF 11 o. FACTOR OR ANY SOIL TYPE RESTRICTIONS. THE FILL VOLUMES HAVE INCLUDED A / , , 0 z :, i2 <( a 0 w G 10% TO COMPACTION FACTOR". ~~.;;..;;.;;;.;;,;:.;.;.;;;.;.;...;..;..,;,;....;..; _______________ ..__ ___________________________________________________________________ .'"' ____________________ _,1,. ____ ~~==,...,,/ L_06SC)00n C) " a .; "' N ,n a V\ "' I ~ ;?- ID 5 a. I <>'.:J I I D D D f l 1~~·1 ~· _VARIEs,/0 <>:·-·] REMOVABLE BOLLARD PLAN I ' I ID I N GRAPHIC SCALE 10 0 10 20 ~~1!-ail!"'liiiii•i ;..j•r I I RECYCLED PLASTIC OR TIMBER ......... 0 '. 8" X 8" X 5'-6" 1 '· \ ' 1 INCH = 20 FT. f:j (J1 u.W . 2"' -< 1/) :c , 0 "' F =·-·--, ........... . 1 ' \ 1 'I ! 'co I I N ' ' O' I I ,~1 I I· .......................... _ . ' ........ ' ......... . ill I FIXED BOLLARD 24" ·~, ...... -·---··-·-···-········-----··-~··· Re.MOVABLE BOLLARD SECTION A-·A ----·-- NOTES: CD RECYCLED PLASTIC BOLLARD SHALL BE WHITE. TIMBER SHALL BE DOUGLAS FIR, DENSE CONSTRUCTION GRADE, AND SHALL BE PRESSURE TREATED WITH A WATERBORNE PRESERVATIVE (ACA, CCA, ACZA) IN ACCORDANCE WITH THE REQUIREMENTS OF SEC. 9-09.3 (1) OF THE WSDOT/APWA STANDARD SPECIFICATIONS. TOP 5 IN. OF TIMBE/1 SHALL BE PAINTED WHITE. 2. STEEL TUBE SHALL CONFORM TO ASTM A53 GRADE A. J. NUTS, BOLTS, & WASHERS SHALL CONFORol TO ASTM A307. 4. ALL STEEL PARTS SHALL BE GALVANIZED. S. CONCRETE SHALL BE CLASS 4000. 6. SEE SEC. 5.08. /J) MIN. 50 IN. SPACING ON TRAILS LESS THAN 10 Ff. WIDE. 60 IN. SPACING ON TRAILS IO Fr. OR WIDER. FINISH GRADE \ EL 500.00 EL -496.60 - DElEN TION/WATER QUAUTY VAULT, SEE SHEET C9 E L = 487.60 40 I . '· \. .1. ,'-.• _ 'l t-~., . ( ; ' -: \·.:l J.-:··//, . \ . -,·' . , . • I r / j,• ' SE 1/4, NE 1'/4, SEC 32, 1·wN 23N, RGE 5E, W.M. I •, ·.·//. J' ., •. ·,·I /_,·_ .. .,. ?:1 /l / ···1 . ,', /1 . ... , -' _. TRACT '8' 1 O' PEDESTRIAN TRACT 927 S.F. I I I I I I I I I I I I I I r· I/ ' I . .· .. .-·,; .· ,' . I : I • 1/ I':· ... './J >J' .. · .-,,-.· ,-·> 1 ::1 ·• •.· 1· , . ,., "',, J ·, /:'.,·/··· .--···1 1> ( I<;: ·.• '• .', ,' -~-, I <! 1/,: ···1 .·.- 1 > ''I i',_' •. ' . ·,·_.'.'·.·1 I.·.· >_·,.· .•. , •... , .. : ,• .· l -~-·.' .:.;:: .. ' . . . . ; , / .-:,-> > / -:'.·;·..; J .• !·>: I· . . j 5'X10' ACCESS GRATE l, . W/tX2' MAINTENANCE ACCESS . f · RIM =. 503.66 29 Lf 12" 0.1. ii> 0.5% ,·.:\ (':(.,;: ; ·,; :-. ,.'; I .., . l ' .·· II , i ' .,,_,24 ¢ ACCESS MH ':.' :'. i ' SOLID LOCKING COVER ' RIM = 502.20 ' I ' ' ! I ' . . i ·• I ' i;: ' I : ' // I I ,n "' a, a, .c, I ·, \ \ -----~· I I f I , I ·:·::: 1 ,' i -- ' ·I(\ .' ' .,! , ' f' . ': I ' . 'r ! 'j" ', I I • i ''· l I ; • i '/ ' ' I I I ! '...1./ I .;:]: I ; IJ ,· ' ' I I I. I· 1;\ 1 ,.··· .• 1· ·; ~ YI i.' • l I~ --j I l 11.1 T 0 ;, r , J I l (l ! I I r i I I I ' ' •, ,·I I \ •., OJ , /·. -I ·°'i'·'· ... /c/·. OUTFALL 12" SD STA. 24+17.16 22.88' LT. IE 492.19± (MATCH EXISTING DITCH IE) 1 o'x5'x2· DEEP 2" -6" QUARRY SPALLS CS 1, TYPE 1 W/ SOILD LOCKING LID MARKED DRAIN ~ (PER KCPW STD. 2-015) STA. 23+91.03, 9.60' LT RIM 494.21 IE 492.34 REMOVE EXISTING DRIVEWAY CUL VERT. RESTORE/REVEGETA TE EXISTING DITCH AND REPLACE EXISTING DRIVEWAY PER 07 KCRS CONTROL STRUCTURE INSIDE ~-VAULT, SEE SHEET C9 RIM = 501.60 STREET LIGHT ~-68 LF 12" D.I. @ 1.59% .----36 Lf 12" CPEP @ 0.5% I I /_ ___ :: -I J CB 2, TYPE 1 ;\ , \ W/ SOILD LOCKING LID ' I ' '' MARKED DRAIN · , : RIM 496.16 ! ' l, / '.. ':.;. ~ (PER KCPW STD. 2-015) ' I '·. : STA, 23+22.36 10.83' LT. I' , , • IE 493.43 ' I I ' i" -" ' . I VAULT MAINTENANCE ACCESS PAD 30LF ±.iii" CPEP - /ls.;.~.67% 24"¢ ACCESS MH SOLID LOCKING COVER IE .RIM = 505.06 6 = 491.60 "'\' . I ''I. . .,, . ·1 ·· 1- · 1 .. . / ,:1 · .. 24"¢ ACCESS· MH ,/.,J\. 1-sou~ LOCKING COVER-' -._, 24"• ACCESS MH SOLID LOCKING COVER RIM = 502.82 i\ ,:::·.~'.\\_ I I I 1· I .i j I_)--- • I '1 ,, . ,.• •-'. J • • I I '·..! .,...--20'x20'x12" DEPTH COMPACTED 3/4" MINUS W/ BOLLARDS, SEE DETAIL SHEET C6 . I I·, ' .. 'i' ,' ), . ' I J'. j ,._ , · o:: ·1 ! .c: : . ; • ; 1 c ~:,!.H .. ,1,r: ·-.. ' ' ' . ''. RIM -505.22 ··· ... ,, ( '· .. ":\'--. -· .. 'i, .:::c ...... . ... ., , ''"-· --i I ' .~UO . ....:.' 1 3DLF ± s• so· 5=9.67% -'" ... ,,if! '!·7 : -.,.,, .• ,.,, ~JT.. ,,·· · · · '\ ( ITfl DRAINAGE EASEMENT .. 1JEJUT 4!~fgo ,·, I ffi IE 6" = 494.50 tJf i Y ;,_ '• · ' · .,,, · • · .... LIVE STORAGE 14,812CF '( I gi 4DLF ± ' yf /,' ;) ,. ·• . ····,····· . ...••••... ... ...... \ ~ :_. ' .. , ... (izy}J 91C:l',Tl':~.I~5 K~~ COUNTY) s;=E DETAIL SHEET cs \ I . LOT 7 6" CPEP ;... ,'.1(,;,::;J .. ,/,., •.. · •.· .. \ . · .;I · STA· 12+12 71 ~ · CB 3 TYPE 1 1 .. '° 3,297 s.F. s=2.15,i;fii11'<;;",,-,z::.:::1_"'-1 \' ··:':'i'!, ., ,1, .. · oFFsET, 5.42.'RT. "; .• ,. 10+,e1.88, 10.oo'Rr (1), SDMH 2 TYPE 2 4$"¢ / .. :·: ·~ .·· i!,i!Lii'' ..... ,.-IE (IN) 491.60 .. ·,·· •··. ',) i"FIJ./tl , RIM 497.74 ,:· .. ·•::U'' 1 W/ SOILD LOCKING~UD / •. · ! · ~ ,,,-, •'" ·' ' ' H r.;;j " 5 .i-J <cu1 MARKED D AIN / 1 ' '·· 5'X10,,.ACCESS GRATE ., 5'x ; __ _. •. I STA. 12+27.77, 2.09' RT , -· -·--,·~ 1.. ·'-'. · . . · , • ., . ./ ··o / 2'X2' MAIN TE.·. NANCE ACCES ' . . • :.1 PrQ;'o ... L _____ .2· Jl.SBL ___ m,~o .2~ I · PROPos;rco {zx2' .MAl~TENAJ,c! : . · :• . . ·,. · • IC. •t .6,. \ "' • : . .' '-ACCESS'." ... · •: ~. · •. 1 •• J ,· : '"'. .. -,<y~ :' 1------------c .. cc.----·--l :,,:·• :·1 , ! S.;, ',. SOLID LOCKING COVER . . ~I .i ~IL . (').. _.:,;" . ., ,,',· /-._ I . : ______ ...lJ __ .:, {}" ,~. ~_RIM,, 504,20 -· SE.--1SJ D-C+.-· .----.'--' --~1-1::.--~\-'-.··~-----· :-rir); ---,-, -i--~ --1--, ··r·---\ \ · 1 ' •. ... ·· 1·, ,, ·--..,, ··, · , · 1 +oo · ..... (Jf;1~\·:ii 1·1·,J:,:1 .. ,-·5' BSBL·':.'s:;-1,-----· \ \ (/ 1 · .. :· i /,." .:·i_. _._Cl°-'-::, ~{_q-~-======--I-,1· (PVBLIO OAD) .·. -· : ... • c-+-·l·,N--, - I \ r . ...... [ ···-.,: , ' c- 11 \ Ui: .. , ..... -... I ·.~ '. ., ·-. 1,:_- 1 • •• 1i ..... -····I .. , r, ; ,1 j t, I I ,;,! J IT , ·1· [ , .1 I i / ' --:) . i" t. --·--.. i .. ' ·I 1 I I .I 'I I I ./ . :l, ·, 0 0 + . " N ·' I I ; ,,! ... , . ,:mEET LIGHT ') I I 1 ' -- f -••• -----,1--------- ---•• I ,, Q,-- -~ . ·: -~-ill I I D;O'j' ---m.,., j STA:12+41.B,-32'LT -& \ \\ N_ ,ii ' ', '[ · . '/1 •',j·@ ,··":' ' . ----18.07' 30 :l::6"CPEP I 4LF ± 6" so s=22.so,i; '{l, \ / ',, ::· ,' ·.(\b}\'i··; __ '~-: . .''. !: ... ;)_?:?~., . -'.~---1F"~-'-· _ .. _ --· l .95 i2' CPEP @s .1;,7~ .-- . 1 1E 6" = 495.so \ ~,--',\.,._-1·, __ t ,-,f, : , r 1-:. ·-:·,,, ,:,,·, i'.@l ' ' • .. ---;:: ... -···--· .P·' r· I ,.:I , . . ........... __ . ____ ,-,-... :~S'l'1. 11 ""' j _ y ;1 --,,_._ ..-1,.i'-_. LOT 6 'I ' SDMH 3'TYPE 2·4B",f,~'., '·1·..:.;· . '-' -'---: '---->' --~ l fl, l _, .. 1\ I -I·- )\.~ (( • • • I , .. , I ,I 1 I 1 .. ; i ...... \ . ,11 'rr! ,._ ·. 3 967 SF 1' . ·;, .-~Tt, i11;i'~1.21~1M11.52064' 7LT3 I . ;;! i 1~¢-<t.l 6S8Lf2'5. §.:'. ~·:,/1 _ _i,"":--,/.J-.:+~::-----= ',''·II) ,., ' .. I I '\ ",/·. 1'·1 11 ' "1E49; •.. ,-:c1. ,..-r,1 ·' =, ,. I m i. IE 6" =i 494.60 ; 1 \'1:-.....lli[··:~,", ·, ," , .'-., '':!r,1·' r:J~·y,-] i ,.,v I -1>-'. , ~ / "' ''' 20Lf ± 6" CPEP _ 1 .. ;,i )"' / " Y.;"-if_'. ... ~-c'· ,,.,.-.)./ I /.. 10', BS . '. s10 I ' 'Ii' ''; IE 6" s::~,J~\; , 'r; :~~P:P ,, ;;, I:>:_' ~,.:/-;0 1 1,'.:, :;~.,~~ ~c,\;f_/_'.1,1,r,r-; '/ r -PSRAON-ll;T\o,''..5R .. EYD-SE ... 5W.~E2.1°·'";'-+-J~\,1 I -· ---·\' "\ ·, 1 :1'\ ,1SStAHW -, __ , f""""·'1· \.. "j ., I I' J -1' 't.!j! f(1Vr.Y,::?, ~· ·1 I !,'· 'I b!,i ·5 ,: lj ,, .. · ' >. ""·.,, -~·l\ I . I Ui.~1 .. :i:ju,_1t12 -~' ..... ·, = ·.,',.:.· ··; S 211~ -,1 r"IJ0 I " -· ,; I I - -. c: '·"',': ! "<t. ',. '-,;_\\iii ... I <( ~ 1 , .5· BSBL' 1 1 = · ro "'':".: • 1,,:=;,_~ (·· ·c~ ! ',1~'1;·;,c,;1,::: ,,, 1.,., , , IE ' ~r~, 0• ~0 ·4~0• T STA~1~%1.~t, 1~0· LT .,, '1'c:----'·' ____ _:, ___ _/ / f",'"'...'.' 1\ ;• .,·,v,/-. ·-·!'1 ,' STA:10+95. ,20'LT IT RIM49789 -, '1l> ... ··' --. · '· ·: i-::,1-.-. · '. I /I~·:·::,\ to~SEJL.._,:~,:··:l'.-';:3\-., I r ;,;,: ,a ·<,,,;,,j/:;;:\;u' \,,I'\ IE 6" = f 1 96.00 : /\ IE 494.6.4 \' : )~~: 'i' •>->~';(C" .. ··1.,:.1 -------·." ---' ) u :·.ci" :o . I;,,.. J, .... ,, 1 ·. ·.• I<,. STA:11+46, 20'LT I 11 ', I I ·'1 ,: , ,-1· .. . . I ., 11,--·1,11· ,,. · I 1 .. , 1!'' · i' ', · .. ,, ... ,· I ·,·.' .. ·1E·6'. ....• 495.o·o I I ·:. ·: 1 • "' I .... /":: / I .) 5 BSBL . : I 'i, ' .. ''·. :~,; :,o/ \1 c·::LF ± ~;·.CPE~:\ 11/,,j'. '\'''I";'. . ,,,1\ I / i LOT 1 I \ I :/:i j ' . I ,, :·,u" \ LO , I / STA:111!~g;a; 52ii~:~b I I S=3,89% '\;, :-I \ly' ' I 1 ' ::, 4,134 S.F. I , I t'.1 /: .·, 'i:i 11:l,:ei-::idt,-'J1i~i 1·.. T 5 ' I I I I r·1 I ·.~.~-·1 1·_.J LOT 2 ...JI ·, --1 ,_.J ..JI '·\ \:....// '11 • · 0 1 ''/, I-' ,.·' 4,715S.F. '.,,I I..., LOT4 -'I I~ '~I,< If '!;,. ~I I~,,,;\... ~I ', /h :·j :: ,.]l\i , ' J Bl .. ·s··TA 12 29 s1 • '. I I Bl .3,688 s.F. ~I II : 3Lso59r s3F ~I I;,, 4,277 s.F. · .. "'I I i ,~ --_\\ ····· ·~·-. "'I .-1,:_\· :i) :ii .;. ',;. ;' ··,,1' s ·-1·m-.', , + . , -86.71 LT -'·I I-"' I , . ·. . I I POTENTIAL LOCATIONj Y· ·J.'i ,: -"r · :·; I"' 46LF±l:·6;D=s4is'.~~ ~I, 1"' 11·;:,.j ·,,II II "'1 II o1~~f~~o1~T~~~i~;J1~' / "·'j, . ;: ) 1' ! I '~/'.. I ,, I ,.:.· ·' · I I ' .. ·.", I .. , I '· :; ~!~ ;I 1 1 1 ! I I r.:ic~ci,.~i:,1,.~~.::!..:'~ [ 1 ~ I ·T:'.; 1 -·) [ " J) I I ·: '": i.,i:\ Ir,,.: IL .. • I I . : I : I , 25' FLOW PATH : · ,; .. I 1 1 c,;,;, ' ... ~ ---·------------_I I: 5::~sls,L,/)i9~)!/~tlt~;~1,1/[cj: "--'-· ~ 5' BSB~i~ . .'; .>\_ ~.-:-:I I_ ---:-:5'.BSB~ -··--=· -. _i ~-1_5:._ssBL_ ; -., .. ~~ : ·\:~ 'i 11 ·····-... -;t:~--------------,----..J.,.-.. ~ .. ,"'r"'···",'" .. "."'., ,"", ,"'.i ·.a...a,,4-, ~,,-1;,.,,.1 :.:+\,a;;.;;;..==-l.--;.; ......... 11.a;; ....... ..;.,.. ........ ..,....i.-.;... ................. ..;.-......... iifi.:· .. = (J.J1"·,:'" •• -1.1_-:J,===--.:..:.f,--/~'\ .. , ................. "i,'f-=-, ""-"-;!)/"! f-tci I-~, -· . ,u, . .),J '.,. 'ii /·1,1 ·.. I -1·.',' 'I .· .. I 4 81' • 6" ROCKERY, LOCATED 6" MIN FROM PROPERTY BOUNDARY notched grada boar<l 2 x 2 notche.s 18 o.c. f 1·-0 ~-min ~-- -.. . •• pipe 0.0. r-a min • • •• • ..,. V o ' . ,., • "' • V end cop or plug clean out wya from pipe 4-or 6 perforated pipe !aid flat/I twe 1 CB w/solld cover (locklng) e\'c! flow lo ~econd dh1persol trench If necessary ~ t · -··· ·-·.. · I , '. I ! ' . II/ .', '! 120 ~~'ii7ciA~6NW~6 I '· iJ /:; -i KING COUNTY.. / l\l 'II ! I PROPOSED STREET .TREE I · ! i ,1 . i I 40' ON CENTER ·(TYP.) I • I I I I'. J ,,. ; I ·, I ·:,;·, t)lle I C w/solid B cover ,r-i t,. J.1 · , ... I" : I l._ I ~-.,: ,:--... 1 . i'd ,.cl '-:) I , , I J. I I I • I I I I ·1 • . .' '· . • J ·-- I ! I ' I I i'" I !:i I ~ EL = 502.00 -·----·-0 <l- ... . -<J-> A • 1 J I /\ EL -500.00 . ·-- PROPERTY galvonlied bolts BOUNDARY •' 0 fnfluent plpe (max design c., c. now 0.5 CFS per trench) dean out wye from pipe PLAN NTS 1'--0 rnin /lpe 0.0. i;'.j];-o rn In ~ 11'0:..-,---- - ~ b. ffow to other branching cs's as necessary I 1B o.c. I . ~ '4-2 ·, I i I I i i I I I l' ( i g + i"J-, .,.1,. __ ._,,,·.:.·.' ... 1: .. _1 , I. "'I'::'('. ' ,. 1 ,, r;;· --. ' ' ' I GENERAL NOTES REMOVABLE BOLLARDS, TYP 3 PLACES, SEE KCRS DETAIL THIS SHEET 24"¢ ACCESS MH ~_..--SOLID LOCKING COVER RIM = 501.60 STREET LIGHT ~-37 LF 12" CPEP @ 0.5% CB 5 TYPE 1 STA. 22+46.21 31.97' LT. RIM 496.91 IE 494.83 (WlLL ACT AS OVERFLOW IF CONTROL STRUCTURE FAILS) POTENTIAL CONNECTION ~-FROM DISPERSION TRENCH TO SD SYSTEM I/ T 2 grade 1. ALL GRATES TO BE VANED GRATES PER KCRS 1993. ~1·"' 2 xl2 --...... •'Le:% ~~-pressure ._ -...._ y.,,,- lreolcd grade .s o I: E board 4 ~ 4' suppod posl "v ---- c " = E ~C\ filter fabric/ '1.5% max for flow conlrol/woter quality lreolmcnt in rural oreos. SECTION A-A NTS 4 or 6 perfornled pipe fold flot clean ~ 5% fine}l -ijl1. 'ft woshed rock board notches 2 NOTES: 1. Thia trench shall be constructed so os to prevent point discharge ond/or erosion. 2. Trenches nrny be placed no closer lh(!n 50 feat to one another. (100 feel olong flowline) 3. Trench and grade board must be leve!. Align to follow contourn of site. 4. Support post spacing cs required by soil condltrons to ensure -grade board remains level. NOTE: KING COUNTY ODES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. -------~---------KING COUNTY D.D.E.S. Review Engineer Senlor Engfneer MOLLY A. JOHNSON, P.E. DEVELOPMENT ENGINEER Completed D0ta- Completed Date APPROVAL Dote SECTION A N,T.S. z 0 Vi Gi "' I -'I!,, !1i! z w "' " 0 u 1/) w CJ 0 C) Y. ro ~ ~- U) ·- "' ~ "" 11(! 1/) I-z z w w "' "' "' :,; 0 0 u 0 ,n ~ l,J c::, 0 Cl CJ u (J Y. "' ro OJ 0 ~ ..... m a, .. <:'. ---.. "' '" ;/; "i s. ~ 11(! z z w l,J "' "' "' "' 0 0 0 u V, LI) w w a 0 Cl 0 0 u "' ,,. "' ro 0 R ---.. OJ -"' <:'. N ..... 0 -.. •. ·- "' ""' !J) r· z CJ "' :,; 0 u if) u.l "' Cl 0 Y. '" 0 ", .., '-N - (0 0 0 ·~ (0 0 < I'") ' .-.;f-' o . I 0:::: .... >c ... I U). 1-:s 0... l-a:: 0 I U) z <!" • ....I a.. w 0 <( z --<( a:: Cl ~ a::: g U) w U) .,.... .,.... I"') 00 ,- -~ ....I "' ~ 0 0 '" (!) ei 0 0 " © 1------------·---..I DRAFTER: PG/CD!,1 DESIGNER: PG PROJ. ENGR./SURV.: CLG DATE: 2-17-09 PROJECT NO.: 05294 SHEET C6 OF 11 L06S0006 '· ~ 0 0. ::, < "' "' .;,: 0 o, I I I .. ···············r , ...• , .. , .. ----·--,-------------------- I!/ --····-"" _____ ,, ________ ., _________ ·-··----___________ '!\'.( ___ ------------- ~ -. _,_ 0 U, fl 0 :c"' + ,-r...: 0"' 0, N 00 + . -··--·-·· 500 -···-... I.·-·----··--<(-_J --·--··-------·-- ' I-WW I if.I VJ I - ' ----. ------···----···-·-. r ____ I --r- -----·--··---···-·-·--... ·--·--···-····--· ·--···--.... '.----·----·--··--·---···· ·····-·········-····· I ·----·---------·---·-·----··-·-·----···-·-·-·-----·-----........ ··-·--·-····-· --····-·----·-·-· --- I ...... L ..... _ 20+00 N o:i rn " n "' o, " ' . . I 20+40 I ; I ; I : ··---·---·-··-LOW PBINT ELEV = 496.44 - I ' LOW Pi°INT STA = 10t27.48 P'{l STA = 10+30101 PVI ELEV = 496.32 A.O. = 5.36 K -3.73 -1 --- \' ... ·······-···--·--··-·-____ " ___ ·--···-·-··-· 20+80 i I PVI ST_A. i= \Qt§g,Qg __ _ PVI ELEV = 496.06 A.O. I= 6.76 K I 7.38 5o.qoo· vc I CB 5 TYrE 1 "1 o:i 0, ,. ,- ' I I 21+20 SE 1 / 4, NE 1 / 4, SEC 32, TWN 2.3N, RGE 5E, W.M. I ! ~ Cl z z z "" uS .. w [D . . .. . . . .... -....... ··-.... I "1 o:i "' st ·~I "'' :l!I 21+60 I ~VJ STA = 11+5p PVI ELEV = 504.95 A.O. = -9.13 r ' ..... ____ J_. I GirADE @ WESTERr ROAD I[. PROPOSED ........ -_ 1 ... I ---. 1~6TH --. i .. i AVB. 22+00 SE. CB 6 TYPE 1 I ;,IA,_22±46,21 31.9~_LL RIM 4f1B.91 IE 4·9'4.83 "' " "', <t, ' .......... ·········-· L 22+40 ' ·1 ' I 0 ' . ----1------------------. 0 "· rn " I . - i . ······-··-·· ......... -··-. ---1 · ·r "'' ,, "' o, ". n "' rn <t I . . . . -I . 22+60 23+20 i-520····· -· II ----····--· -------------20 .. 000'.--VC---·--·-.. --. ... R/W. --·----. -----------1 o+e7. aS," -1 o. oo~-RT-----·---·······-·-· ,.. _____ -·· ...... · · · -............ -·· · -. -------------··--·-·-- DEDICATION Rll.14!fl.i/4 ---- 0 <D rn tj• ' 23+60 / ---- -,ri "' .,. ' 24+00 T{JNGUE'. END ON INLET END GROOVE END ON OUTLEJ' ENO ENDS TO FIT ADJACEITT Plf'E SECTIONS 1 11E 494.7•\ 8 o !'.--ROUND EOGES 1/2"-1'4 I I I " d ..... .-~ l'J N ICB 4 TYf(E 1 ~ fl1 ~ ~ ~ ~ 1:i ~ ~ l~i~ ~~~~fl·91, 10.0' LT ~ tj ~ ~ ____ ±_ -~--------· --6 -~----o -----o :ot ... ., ..... IE ... 494.Bf--·-~--------···-·-.. ··-······-----u--~-------- ;" -,~ ~ d -~.1 ~kx1s·nNG GRADE Gj w 0>V-i o>w t3 §:? Ui I u>vi .,,, :@ <f. OF ROAD I rorn Gjw I mm I _ __j \ --,-- I --\_... -~I,-,0137< e---i -:__;:::········~·· ~I~-~~·---··· ·+r,·····r-· · ·1····-· -···--···· -.:.. 3.36% I '15 LF 12" CPEP @ 0.5% ··-·--··500---·-·----···-·-·-·-··-·-· -·-· -··· ' ' ·-----·--------·---·--·~---·--- ; i DATUM ELEV I_ _ ·-_ ··--·. 480.00 • l.l 0) l CJ) t,Jo rr ' ~ "' s /;jF! . '1i EX. R/W I ' ....... --, "''" ,. -----·····-·· , .......... . ------------------ 1 SE. 183RD CT. . ___ I -----· ..... ·-·-·-···-···-···· -·-·--· ... ,, ___ ----·-----.. mN N~ ~~ ~~ ·~ij n~ ~15 :ail~ !=;:; ,,! CO • OJ • ,-I • !N • I").,..: u,:: ,.,, ...... m1:g 01 r--. o,<O o Ol o.0 • ····· \ ... ·-·-. i 'C...sTA: 1i:;a1:ii:i,i20' LT WATEI! CROSSING fi9 LF 12" CPEP I @ 0.5% SDMH 3 TYPE 2 4B"o STA. 11+61.21 11.26' LT RIM 504.73 IE 494.17 i== ·--··-· . .' .. -. --.. .. - SDMH 2 ~YPE 2 48"¢ ,i/ SOILD LOCKING LID MARKED DRAIN ············-500 · STA. 12·~27.77, 2.09' RT RIM 505.:20 .............. IE: . 493.8~! ____ _ ' .. ,---··-·.· m~ "' . 0"' "' 0 "' ' ' ....... J .... _ ----·-·-·· -t * __ -----~I~ -----....... ,~ ···-·· --····--.... "'I* ......... ---.. "'I~ --. ············-···-···· "'/: ··--·-.. J ................ -· -J .. ·-·-· . ·-·-----·--·-·---------· -...... .I 10+00 STA: 10+32.57 OFFSET: 20. 95 L 10+40 10+80 11+20 11+60 --------------·---·---··--··-·· r -- i .... · -·500 - '-------------------., .--,--,--- • I VAULT CONTROL SffiUCTURE ST'. 0+07.50 I SEE SHEET C9 ! ' : I I -I ···· ............. -I • ••••••••··•• .••.. ••••••••• I_. ·-· ········-· 1....... .. __ , _ --..:·-..__ ---_1_ I ' j I '..... ....... ... . ... -/ ....... . ..... .... .. .. . .. " .. -.. --I ... ·500 I I I ! ' OUTFALL 12" SD -!~ ; . I STA. 1+33,37 0.0 LT. 9-LF--'1.Z' ;D,1.-@ .5% IE 492.19~ (MATCH cs-1,TYPEl1 ·· ···· ·······-· ·· I. ~~!;;: :J~i: ~~)6 .. I --------68 L" 12" D.I. @ 1.59% 36 LF 12" DI @ 0.5% -' I ' CBI 2, TYPE 1 I j W/ SOILD LOCKING LIO ····aui\RRY·sr 1 · ALLS MARKED DRAIN (PER KCPW lsro. 2-015) I STA. 23+911103, 9.60' LT I RIM 494.21 IE 492.341-···············-I ~(R~~~ilo}1:fNGI Do ·--·-····-·-· i-· --··· ! (PER KCPW SID. 2-015) I I STA. 23+22.36 10!63' LT. ! ! RIM 496.16 I IE 1493.43 1 , !,,-···-··-···---.... . ... ··-. . ... .1 -----------------· . -------T -- ; I I : I-I .. s~~~f~'==~:~~~~~ rp_~~T-~1-1 ouTFALLJ .. rn .,,I NI m ml . ~ -"'' r--u:i (J) ! If) • Lf) '<t vi ; rn ~ ~-~ m m m! .-;j· .... .... " ,;;f-tj· 1 "'' ; ······ --L ! ·480· I --------------------· ---·--------------< -------- o+oo 0+40 0+60 1+20 10 0 l'!ii2 5 0 ~ 12+00 GRAPHIC SCALE 10 20 j I~ ,J 1 INCH = 20 FT. HORIZONTAL 5 10 22 !st t. 1 INCH -10 FT. VERTICAL 12+40 40 -J 20 a ~ ~ J , PU\N END SECTION 1' MIN. ' ~ J -z::::J' ·~~ ,, . -3g PAi'MENT & PLANNED CULVERT LENGTH I - ELEVATION CONCRETE PIPE ~ KING COUNT/ FUBLIC WORKS BEVELED l<ING COUNTY, WASHINGTON 73 . . .... r I · · .. -···---·520-· · 500 ----· . -·-·-··-·-·-·---··· _..!····----... -----... 24+40 END SECTION 1---,--_1' MIN. lAITAl. 4' MIN. PlASTlC I '~~ ~1 PIPE JOINT-......._~ P.) ~ ~~:Jg ~ PAYMENT & PlANrlED CULVERT LENGTH ~J -· METAL & PLASTIC PIPE NOTE: SIDE SLOPE SHALL BE WARPED TO MATCH THE BEVELED PIPE END. WHEN CULVERT IS ON SKEW, BEVEL!:'.D (ND SHALL BE ROTATED TO CONFORM TO SLOPE. IF SLOPE DIFFERS FROM 3:1, P!PE SHALL BE BEVELED TO MATCH SLOPE. END PIPE SECTION I DWG. 2-001 NO. GENERAL NOTES 1, ALL GRATES SHALL BE VANED GRATES PER KCRS 1993. NOTE: KING COUNTY DDES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY D.D.E.S. Review Englneer Senfor Engineer MOLLY A. JOHNSON, P.E. DEVELOPMENT ENGINEER Completed Doto Completed Date APPROVAL Dato f!: r5 ::,; 8 V) w 0 8 Y. I- <( _J Cl. l-o;: 0 I (/) -I ....I <( ~ N "" f!: z L,J ::,; s Vl w 0 8 " U) ..J ·-~ w Cl 0 z <( (/) ~ LL.. 0 0:.: 11.. Lu (!) <( z -<( 0::: n :i: 0:.: ~ (/) Cl z <( Cl <( 0 0:.: w (/) V) ,- r5 ~ <) [3 0 0 0 Y. 00 LO 0 00 0) <( :s: • z ~ z w a::: ~ f!: z Lu ::<. ::,; 0 " [31 0 Cl u Y. (0 0 0 0 (I) ~ ~ t'1 """ 0 , , ' rv j''' ...... -~1.C _IU)., " g ::J <{ <..i z DRAFTER: PG/CDM DESIGNER: PG PROJ. ENGR./SURV.: CLG DATE: 2-17-09 PROJECT NO.: 05294 SHEET C7 OF 11 L06S0006 "' 0 0 ~ 1''-VEMOrf W:IJIH -i-------------"===~---------- 1'-o· I.UH. -1" CDIW CGHCRQl"; SAIi, m'ER ON SOUTH & WEST S!OE Oi" .c==·~ SE:E SEC. 9.0.W - ~·-o· CEJJEM' CONC11U!:; CIJR8 <l< GUJTER S1.J&3RAOE SLOl'E tl.02 fT,/ft. SU ~ tlO. -•-002 o,,s UN.ES ON !INn! * m:sr SIOE __ _., Of' 5Tll£ET, SE£ S£C. II.OU NOTES: CltUSHED SUflfJCING TOP COURSE AOomotw. ~TMOO LIA'Y BE flEQlfill£0 !lEPUIDI/Hl ON SOll. CONOmOHs:. SEE SEC. ~.oz .t '·" 1. THIS DRAV~NG ILLUSTRATES A TYPICAL ASPHALT CONCRETE ROAD SECTION, ALTERNATIVE II. ACTUAL SURFACING DESIGN FOR ARTERIALS AfJD COMMERCIAL ACCESS STREETS SHALL BE BASED ON SOILS AND TRAFFIC ANALYSIS PER SEC. 4.03. DESIGN FOR RESIDENTIAL ACCESS SHALL BE IN ACCORDANCE V!TH SECS. 4.01 AND 4.02. 2. GRADES: MINlfAUM 0.5% MAXIMUM SEE SECS. 2.02, 2.03, 2.04, AND 2.11. ·-· 3. SIDEWALKS SHALL BE 8 FT. WIDE IN BUSINESS DISTRICTS AND 6.5 FT. \\1DE ON ARTERIALS IF NEXT TO TRAFrlC LANE, 5 FT. \\1DE IF NEXT TO PARl(ING OR BIKE LANE, OR BEHIND PLANTING STRIP SEE SECTION 3.028. 4. FOR \\1DTHS OF PAVEMENT, SHOULDER, AND RIGHT-OF-WAY, SEE SECS. 2.02, 2.03. AND 2.04. 5. FOR CLEARANCE OF UTILITY POLES SEE SEC. 6.02G AND DWG. NO. 5-001. 6. SEE CHAPTER 7 FOR CATCH BASIN AND STORM SEWER LOCATIONS. 7. SEE SEC. 5.02 FOR SIDE SLOPE REQUIREMENTS. SIOl:WA!I( ;i. \'IATtR LINES ON I\C Rill It EAST SIDE" OF fl(l.1,(1. SU: SEC:. 6.02A KING COUNTY PUBLIC WORKS KltlG COLIN rY, WASHINGTON VERTICAL CURB TYPE ROADWAY """'"""' 10'-0" MIN. 20·-o· w.ii:. cow.i.;mousm. 2!!'.--0" l,ITN, .3!!'-0" MAX. mG!rr-or-WA~ LIHE • --smEWALK f\NiTU.O STRIF', IF JI«. NOTES: DWG. NO. MATQj EXISIJHCI ~l CRALi£ 1. COMMERCIAL/INDUSTRIAL DRIVEW,,YS WIDER THAN :l5' MAY BE APPROVED BY THE ENGINEER CONSIDERING TRAFFIC SAFETY AND NEEDS OF THE ACnVITY SERVED. ALL COMMERCIAL/INDUSTRIAL DRIVEWAYS SHALL HAVE AN EXPANSION JOINT LOCATED MID-\\1DTH. SEE SEC. 3.04. 2. SEE SEC. 3.01. 3. SEE SEC. 4.01 FOR SURFACING REQUIREMENTS. ~ECTION A-A 1-002 KING COUNTY PUSLIC WORKS KING COUNTY, WASHINGTON CURB & GUTTER SECTION DRIVEWAY DWG. NO. 3-004 11'--·-r " ' ~1,· lW. -...__ 1/2' l.EllERS &CESSED TO SE R..US11 !I -..___ t..E,nmo P>Jl 6 -1/5' X 3/J.." X 1 .'!/~' PIJ,N CQYER 5/a" 3/,1,. 4 3/-4. I i ,;] ;,;' 1~ 1,.,. l;:, 1/2' 1)1'. NOTES: L FlNISf! QIM, Of! l..EYELJNG P#J. 1. USE WITH FRAME (DWG. NO. 2-014) DRILLED AND TAPPED FOR LOCKING BOLTS. 2. USE WITH TWO LOCK!NG BOLTS 5/8--11 NC STAINLESS STEEL TYPE 304 STEEL SOCKET HEAD (All...EN HEAD) ('..AP SCREWS, 2~ LONG. 3. MATERIAL IS CAST !RON PER ASTM MB CLASS 30, 4. SEE SEC. 7 .05. 5. THE WORDS •PROPERTY OF K!NG COUNTY" SH,!,il. BE OMITTED IF COVER IS ON A PRIVATE SYSTEM. !-----------·--------------------------------------------~ KING cOUITTY PUBLIC WORKS I\ING COUNTY, WASH!NGfOM SOLID COVER DWG. ND. 2-015 12· 12' msrn SEC'TION 1 2 I~ am HOOPS - IJ EW1 EACH SlDE NOTES: 1. CATCH BASINS SHALL BE CONSTRUCTED IN ACCORDANCE V~TH ASTM C4/H (AASHTO M 199) & C690 UNLESS OTHER\\1SE SHOWN ON PLANS OR NOTED IN THE WSOOT / APWA STANDARD SPECIFICATIONS. 2. AS AN ACCEPTABLE ALTERNATIVE TO REBAR, WELDED WIRE FADRIC HAVING A MIN. AREA OF 0.1:Z SQUARE INCHES PER FOOT MAY BE USED, WELDED \\1RE FABRIC SHALL COMPLY TO ASTM A497 (AASHTO M 221). \\1RE FABRIC SHALL NOT BE PLACED IN KNOCKOUTS. 3. ALL REINFORCED CAST-·IN-PLACE CONCRETE SHALL BE CLASS ~·000. 4. PRECAST BASES SHALL BE FURNISHED 111TH CUTOUTS OR l<NDCKOUTS. l(NOCKOUTS SHALL HAVE A WALL THICKNESS OF 2" MIN. ALL PIPE SHALL BE INSTALLED IN FACTORY PROVIDED KNOCKOUTS. UNUSED KNOCKOUTS NEED NOT BE GROUTED IF WALL IS LEFT INTACT. 5. l(NOCl(OUT OR CUTOUT HOLE SIZE IS EQUAL TO PIPE OUTER DIAM. PLUS CATCH BASIN WALL TI11CKNESS. 6. ROUND KNOCKOUTS MAY BE ON ALL 4 SIDES, 111TH MAX. DIAM. OF 20". KNOCKOUTS MAY BE EITHER ROUND OR "D" SHAPE. 7. THE MAX. DEPTH FROM THE FINISHED GRADE TO THE PIPE INVERT IS 5'-0". 8. THE TAPER ON lclE SIDES OF THE PRECAST BASE SECTION AND RISER SECTION SHALL NOT EXCEED 1/2"/FT. 9. CATCH BASIN FRAME AND GRATE SHALL BE IN ACCORDANCE V!lcl STANDARD SPECIFICATIONS AND MEET THE STRENGTH 11E<JUIREMENTS OF FEDERAL SPECIFICATION RR-F-621D. MP.TING SURF ACES SHALL BE FINISHED TO ASSURE N()N-ROCl<ING FIT 111TH ANY COVER POSITION. 10. FRAM£ AND GRATE MAY BE INSTALLED 111TH FLANGE DOWN OR CAST INTO RISER. 11. FOR CATCH BASINS IN PARKING LOTS REFER TO WSDOT/APWA STANDARD DWG. Bl-b. 12. EDGF OF RISER OR BRIC!( SHALL NOT BE MORE THAN 2" FROM VERTICAL EDGE OF CATCH BASIN WALL. 1--------------------------------------·------------------~---------1 KING COUNTY PUBLIC WORKS KING COUNTY, WASHINGTON SIDE\'/AIB-,.._ (Sff .SEC. fm ..:l-012) · cur,s. OR cune Nm Gutrrn ~/B" EXPANSION 't•-'-i:;,·~,/1, JOl,'IT (Np.)----((z)<" ~n @ DETECTABLE WA!i'.WHG) d-~ _ .. _ PATTERN (SEE DETf<IL -·, C --~ ='--\.u~ c:::..: -=" -] I -c~05SWALK _________ c~u~R~B~R,'~'~IP_IA~®-'-------- SIDEWAJ..K 1- ---,_L CEIJENT Ct:lflC. S!DEWALX !<AMP 1YFF. JA OETECTAEI!£ WMltJING f'ATIEflll AREA Sfl,\!.L BE YULIT/1, Ill COU?UANCE WITH 5TO, SPEC. 5-!4.3(.'l) 1.11N, ""'· ' ,g 2 319"" .,-'. ..J...J.Lr C ~f-){ .]7/'-n 7 .~ I I 1 16 CATCH PLAN lA)'.OUT 1 __ _ DETECTABLE WARNING PATTERN DETAIL JiQTES I, PLACEM~tlT OF CiAATINGS, ACC(SS C:OVE'.!15 Arm on,rn APl'URTEt-!ANCES SHALL NOT 8£ LOCATED ON Cl!REI !WJF5, L.o!.NDlfms AND OlJTTEl?S V,1n1!N Tl I:': PEDESTRbUi AC~ESS )10LJTE:. @ t,/\IAPS SHALL BE TiXTUflED USlllG 1flLJf<CA1(0 OOl~E'. f'ATIEflN {SE!:'. DETAIL THIS PAGE), DE1ECTA8LE Y,AJWING PATT£/;/-./ Sl-jl,tL 6E YEU,OW IN COMPUANCE wm, wsoor STANDARD SPECIFICATION B-14.J(3) .'!, fiAMP i::EHTER UNE SttALL BE PERFENOIGWlf TO OR llAlllAL TO CURS flrnJRHS UNLESS 011-1~R\11S!: APPRO\'ED ar lHE COLIND' ROAD ENGINEER. 4, RAMPS SHAU. SE CONSTRUCTED AT CORflESPOllD1NG SIDEWAl.K LOC.l,TIOtlS Otl IJPPOSrt( S11)( or STREETS WllE!l RAMPS AflE COllS1RUCIED ON atJE SIDE Of S1REEr. SEE flO, J-010. @ 1.ANDl11C SHALL SE'. MIN!MV/A ,: )( 4'. @ cuia RAIAf' 1A MU.ST eE INSTALLED Uf:LESS OTiiEilWl5E APPROVED. 7. S!:E rn;:uRE J-001 nm CURB MID S!DE'i'/.'l.tl( JOIUT PL/ICEl,\00. CURB RAMP IA RG 3--0lt 3-21 BASIN TYPE 1 - CROSSWALK WJ1KltJGS Ofl CllOSSWilkK tOCATIUI, -- DWG. NO. 2-003 ----_____ _,c,,u,,,e,,_a RAMP:_;,IAo_::@):__ ___ ~ CRDS::i\'IAUI MARKINGS Oil C1'0S.S\'IA!J( LOCATION CURS RAMP lA @ NOTES (D RAMPS SH,\LL ElE CDNTRAS11NG COt-Dtl DF lll;l-lT TO DNlK on DARK TO LIOl!T .\HD COlORIHCl l,<UST SE AN ltnEGF!I\TEO PART OF lllE RA.IP. @ 1 .. Ano1,,e SHPU St Ltl/EL ANO A MINIMUM 4' I{ 4'. CUAB RAMPS WITl,IN RADIUS NOTES: 10" II' ,-,,-,.--,.-2 1/J i • EXTRUDED ASPHALT OR CEMENT .CONCRETE CURB J,i, "'"" Ql'IH!Wl. f!Jfl llitECIW.. l'Otm .Q;MENJ CONCRETE ROLLED CURB 1. SEE SEC. 3.04 K.C.R.S. FOR JOINT REQUIREMENTS. 2. ROLL GUTTER TO MATCH POSITIVE SUPERELEVATION. 3. SEE DRA\\1NG NO. 1-006 FOR CONFIGURATION OF FILL & WALl<WAY BEHIND .CURB IF REQUIRED. 4. FOR INTEGRAL POUR CONSTRUCTION, 1/4" EDGED GROOVE MAY REPLACE EXPANSION JOINT AT INTERFACE BETWEEN THE CURB AND ADJACENT SIDEWALK. 2·-0· **TO COtlFORI.I TO CROWN SLOPE Ofl 0,02 ff,/IT. -0,02 FTJfT.•• MOUNTABLE CEt~_r;;RETE CURB ~ EXf'AIISION JOIHT i., • l J I o.oi"n./f1, ~ r°"/1 ~ ... ., , ,~ < ;'. ~; t· ; ' .. 3 : -:;~ ~~:~·;,_..~(::,1~·.;)::.I'.·. "r ,.,... •• ,.',••t<lr ··•• ~ "' •.', c :i. • ;-• ..-•••. •: ; • '; .... , ;: ,_ C£1.!EM' COHCR.Era 1 -~-·,.·i.--:.·· :;,: SIOEW~ . 1·-~· .. HOll.: TOI' or LIi' AT a~A)S. CEMENT CONCBEIE CURB & GUTTER 5. SEE SEC. 3.03 FOR EXTRUDED CURB ANCHORAGE. l---------'---'--'-'--'-===c....:.,...:.:=-c.::..:.:===-----------------------------------1 KING COUNTY PUBLIC WORKS KING COUNTY, WASHINGTON CURB DETAILS CH!ENT COt-/CRETE !MEWAtl{ AND RAMP MAiCH E)(IITT!NG ·oR PROFOSEO SURFAC~ ASPHALT co11c11m SMotJLOfJl -~-----_.'iECTIQN A-A---~------- NOTES 1. SH; SEC. 3.02 FOR SrDEJ,'MtK \\'IOTHS. 2. Si:f; OECS. 2.02 AtlD 2.0J FOR PAVEMENT AN!l SIIDULDB'l l'/IOTHS, J, SHOULOE"R SHAU.. BE SUflfACED AS REOUIJiED !l;Y SECS. J.07 ANO 4.01. PAVED SHOULDER SLOPE SHALL !IATGH Cl?OW/l SLOPE OR O.oz Fi"./FT. ~. SEE FIG. J-001 FOR CURB firm SIJ]f;l'}A.IJ( JOINTS. @ f<Al,tP Sl-l.4U BE fEXlURED lJSIIJG TRUNCATED DOJIE PATifilM. (SEE no. J-011.) DETECTASU: WEA!lll.:G PAlTEilN SHAll BE YEU.OW IN CQMFUAtlCE WIIH \','SOOT STANDARD SPECIFICATIONS 8-M,3(:3) 6. THIS OErfllL ~.flPUES TC f10lLEO J..ND VEli.T)C:,\t CURI:! ROADWAYS, llo~,itm,r-t o/ Tr.lr~poru,IIM no,d S•r,~..., or,iitrn J~J1 llo:Jp~ na,J 111, ~ 0>uruy C.OrulrudlM ~!tlnd.>n:!,. CEMENT CONCRETE SIDEWALK TRANSITION TO ASPHALT SHOULDER FlG. 3-014 3.2,i DWG. 3-002 NO. C.2..1 ll,\SIC tJISPERSION l'IGIJ!ll! C.1A.l1 TYl'ICAI. GI\,\ \'!,;J,.i,·1LLED DISl'l!I\StoN TRENCH FOU h~SIC l)lSl'lcHSION f• "H 1•o h,,,,~-,':,~·~ ·~\) t., • ••v ~ 0 0 , , •,0 ~ •• ,, • i,,_ •• 4·parlplp0 '•d'" \I ·~ •• " •,t •""' l'~,d':,d"(l 18 n~n J ~,v. •'1,lla '-'~" ,, I ,, v,V'fi',:."'.cr.' 11/,".:J/;'washOOrar.k 0 •O ,i,ll.,,:, 00 otJ 0, •• V ~ ,• " • • v'•,•'0°11""1"•• ' :\.r:I •• , •• ,11.,:..,,, •• -".". . .. J.--24" min ___..j TRENCH X·SECT!ON NTS :S700 sq, It. ,.700 sq. 11. f Slmp!n 1 '" --- Mnlmum 5o.lool !ronch w/nolch board (noo Figure C.:l,1.ll, p. C-32) PLAN VIEW OF ROOF NTS llll/!005 C·!3 NOTE: KING COUNTY DOES APPROVAL rs FDR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY D.D.E.S. Review Engineer S:enlor Engineer MOLLY A. JOHNSON, P.E. DEVELOPMENT ENGINEER Complelod Dote Complel1:1d Dote APPROVAL Dote --- ·-- ~ N "' "" "' '" [" [" [" z z z w w w :,a :,a :,a :,e :,e :,e 0 0 0 u u u VJ tn (/) w w w 0 0 o Cl 0 0 u u u " "' "' a:, "' a:, >;;_ f2.. f2.. Ol "' ~ '-~ "' "' rn --· ------ ;/; "' as [" [" z z w "' ::; :,e :,a :a 0 0 u u Ul "' w w 0 Cl 0 0 u (j "' "' OJ " -'z >;;_ "' "' ~ ~ 0 -•• --- I I i&I VJ f- r5 "' " 0 '" U) w 0 0 0 "' -- 0, t) '-"' '-N ·- tO 0 0 0 (/) (0 ~ I- <( _J a_ l-a::: 0 I (/) -:c ....J <( ~ (f) ...J -~ w Cl <:'d (/) I:! 0 z Lu (!) <( z -<( a:.: Cl ~ a:: g (/) Cl z <( Cl <( 0 a::: DRAFTER: DESIGNER: • ~ <( i!: co .... ,- ~ z g z w 0::: ' _' I .. J ,. I PG/CD/11 PG I"} ~ L 0:: _, (/) " g CLG PROJ. ENGR./SURV.: 2-17-09 05294 DATE: PROJECT NO.: SHEET CB OF t5 z LCl6S0006 ,_ 0 0.. ::, s: " -n 0 - 0, 0 0 ;:: \1 0 '" "' " I" 5 n I "' ;?, a C C (L C-· C ·.: ID ID C "' ~ D[TENTION: REQUIRED 14,525CF. PROPOSED 14,812CF. WATER QUALITY: NCJTE: REQUIRED 4,047CF. PROPOSED 7,806CF. SE 1 / 4, NE 1 / 4, SEC 32, 1WN 23N, RGE 5E, W.M. FLOW RESTRICTOR NOTES: 1. PIPE SIZES, INVERT ELEVATIONS, ORIFICE SIZES, OVERFLOW ELEVATIONS AND SLOPES; PER PLANS. 2. OUTLET CAPACITY: NOT LESS THAN COMBINED INLETS. 3. EXCEPT AS SHOWN OR NOTED, UNITS SHALL BE CONSTRUCTED IN ACCORDANCE ~TH THE REQUIREMENTS FOR CATCH BASIN TYPE 2, 54" MIN. DIAM. SOLID COVER MARKED "DRAIN" r WITH BOLT LOCKING RING AND COVER RIM 501.69' tr;====''=;,\ - SEE STRlJCTURAL VAULT PLANS FOR VAULT CONSTRUCTION DETAILS. 4. PIPE SUPPORTS AND RESTRICTOR SHALL BE OF SAME MATERIAL, AND BE ANCHORED AT 3' MAX. SPACING BY 5/8" DIAM. STAINLESS STEEL EXPANSION BOLTS OR EMBEDDED 2" IN WALL. I BL r-. • .'_::::'-.;(;, '.~> -i ,'.':;7: "-':-} ·'-"i I-'-:",~ --if.;_.._; -'ij ,:.::,-;,,;::' ;, -r 0::-o:· "'y '~:;> "'-.j <":" .' -' [ ,2:::;.,-"';j, ~-"? ""-);,'.:~;! ··':,C::;:1-~I ,>;;, ' -• f; ::;, -, ':' ,~:,;----; i ~"::/'a 're-.,_::--'--'f,.':c/ ' i :~-'.;" ·J _, ;-;;,'; , ;, A 501 .50 12"¢ I.E. 491.60 I ! I. r ' J 487.83 ./ 5% 0.5% 0.5% 5% I ,._ ~ z 24" ACCESS MANHOLE W/ BOLT LOCKING RING AND COVER -PER KCSWDM STANDARDS RIM = 505.06 -- - - - - - ---MAX. WATER SURFACE ELEY. = 496.10 - .-BOTTOM OF LIVE STORAGE ELEV. -493.60 0 - - -BOTTOM OF WATER QUALITY I -STORAGE ELEV. -488.60 ~----- .. "ENTE WAL ~TH 12" HOL S AT ' OC IN = 4 3.60 .. ''' ' '. '"' ' .. . . . . ·. W TER UALI '' ' ' 90.5 24" ACCESS MANHOLE W/ BOLT LOCKING RING AND COVER PER KCSWDM STANDARDS - RIM = 505.22 J - - - - I - 2.50' LIVE STORAGE - - - 5' WATER QU1LITY STORAGE - - -L 1' AVERAG; SEDIMENT STORAGE @ 'i. 166' --,_ ': in ' -----1- -~:-1_-1_ -HI 5'x10' GRATED ACCESS PANEL, W/ 2'X2' MAINTENANCE ACCESS TYP. 0.5% 0.5% D -·-,, C • ' 5. THE VERTICAL RISER STEM OF THE RESTICTOR SHALL BE THE SAME DIAM. AS THE HORIZONTAL OUTLET PIPE, ~TH AN 8" MIN. DIAM. 6. FRAME AND LADDER OR STEPS OFFSET SO THAT: A. SHEAR GRATE IS VISIBLE FROM TOP. B. CLIMB DOWN SPACE IS CLEAR OF RISER AND SHEAR GRATE. C. FRAME IS CLEAR OF CURB. 7. IF METAL OUTLET PIPE CONNECTS TO CEMENT CONCRETE PIPE: OUTLET PIPE TO HAVE SMOOTH 0.0. EQUAL TO CONCRETE PIPE 1.D. LESS 1/4". B. MULTI-ORIFICE ELBOWS MAY BE LOCATED AS SHOWN OR ALL ON ONE SIDE OF RISER TO ASSURE LADDER CLEARANCE. 9. SHEAR GRATE HANDLE SHALL BE ATTACHED TO LADDER/ STEP LOCATED WITI·IIN 24" ACCESS SECTION. 10. IF NOTCHED ~ER IS USED IN LIEU OF ELBOW, BAFFLE SHALL NOT OBSTRUCT ACCESS TO THE STRUCTURE. FLOW OUTLET .c A 4'x35'x4' DEEP SUMP 35' I 6" TOP OF PIPE,: SUPPORTS (2 MIN): I 3" X .09"· ALUMINUM W/ 5/8"~------~=~ STAINLESS BOLTS Ir ~Jl--+..---SEE NOTE 10 ANO 12 4" ELBOW, . . SEE NOTE 11 ·-~ SHEAR GRATE-,~ ,_ ORIFICE=l.4"¢ ELEV.=495.25' LJ_..-J-..---12"¢ RISER 12" MIN. - l r oi==~ ~12"¢ OUTLET PIPE , I.E. 493.6' +-c-<:'..,_1'"----....._ 1' SECTION OF PIPE ATTACHED BY I"-.... '--GASKElEO BAND TO ALLOW REMOVAL 2' RESTRICTOR PLATE W/ 0.68"¢ "--ORIFICE SMOOTH EDGE ELEV. 491.6' 485.1' BOTTOM OF 4'X35'X4' SEDIMENT SUMP fil:IE~]QN Y6ULI L SEC]QN C . N~ DETENTION VAULT NOTES: 1. BAFFLE WALL TO DIVIDE VAULT INTO TWO APPROXIMATELY EQUAL SIZE CELLS. 2. MINIMUM ONE ACCESS MANHOLE PER CELL ~TH AT LEAST ONE ACCESS PER 50' VAULT LENGTH OR ~DTH. 3. PROVIDE WATER STOP AT ALL CAST-IN-PLACE CONSTRUCTION JOINTS. PRE-·CAST VAULTS SHALL HAVE · APPROVED RUBBER GASKET SYSTEM. 4. VAULT SHALL BE DESIGNED AND STAMPED BY A REGISTERED STRUCTURAL ENGINEER. VAULT SHALL BE DESIGNED FOR HS-20 TRAFFIC LOADINGS, MINIMUM. ALL METAL PARTS SHALL BE CORROSION RESISTANT. 1.\ • .r ~--.f i;,.,r ,, __ r ,; .. i !.:,..1 1.i, .1 !\ .. ,i 1, • ."i /U '.\ .. f fa.J r,_; ,; . .i· _:,,_, !}. •. 1 ,,.: i•--f •.i,.1 ;,, .. _! (•,,_ i,.T 5. PROVIDE LADDER RUNGS IMMEDIATELY ADJACENT TO ALL INLET/OUTLET PIPES. 6. ALL INLETS TO FIRST CELL. I - - - - - - - - -- - - - 24" ACCESS MANHOLE W/ BOLT LOCKING RING AND COVER PER KCSWDM STANDARDS, TYP PLAN VIEW SCALE: 1"=10' HORIZONTAL 24" ACCESS MANHOLE W/ 5' xl o' GRATED ACCESS PANEL BOLT LOCKING RING AND COVER RIM = 503.66 ~ PER KCSWDM STANDARDS RIM -504.20 -- I --11 V "50h!iB - -/ 498.60. -/ - - -- -;491.60 - - r487.38 166' SECTION A SCALE: 1"=10' HORIZONTAL SCALE: 1"=5' VERTICAL FOOTING DRAIN " 4" ¢ PERF PVC SD "-VAULT FTG DRAINS EL 493.60 24" ACCESS MANHOLE W/ BOLT LOCKING RING AND COVER -PER KCSWDM STANDARDS RIM -502.62 D 5'x10' GRATED ACCESS PANEL RIM = 501.60 E PROPOSED GRADE ------- -- ~----~1r498.6Q --- -t ~if;;~L_g:12·~·· = I.E. 493.60 C - BAFFLE -0.5' FREEBOARD WALL - . - - - 491.25 487.25 24" ACCESS MANHOLE W/ BOLT LOCKING RING AND COVER PER KCSWDM STANDARDS~ RIM -504.98 501 .50 "-.. 0 _5%.,. . ,.5% - - -··-- - - - - - -- - - - - - - 5%.., SECTION Ii fl ,.5% _ 7. IF PROPOSED COVER IS GREATER THAN 8. 1', 1:·IEN IT MUST BE 2.5' MINIMUM AND ACCESS MUST BE 48" ECCENTRIC co1:L SET OVER 24" DIAMETER ACCESS OPENING. - - - 496.10 - - - 493.60 D - - -. I -- 488.60 - - -· 5'x10' GRATED ACCESS PANEL RIM = 501.60 24" ACCESS MANHOLE W/ SOLT LOCKING RING AND COVER PER KCSWDM STANDARDS - RIM -501.60 ~ - - - - - 5%.., ,5% ---- - - SECTION D / 498.60 \_ FOOTING DRAIN, TYP / 487.25 DETENTION VAULT / SEQTIQNS B AND D SCALE: 1"=10' HORIZONTAL SCALE: 1"=5' VERTICAL NOTE: KING COUNTY DDES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY D.D.E.S. Review Engineer Senior Engineer MOLLY A. JOHNSON, P.E. DEVELOPMENT ENGINEER Completad Date Completed Dote APPROVAL Date L-.------------------------------------------------------------------·-·---------------------------------------- ________ ,,,, ---------------------·-------------·········"· .,, ------------··----·-----·-·----·-"--·----·--·---. ' E 1\.1' 8 IS E -.;, E~ m "' C ID "' r :,~ ..,~ RJ~ 1ii ....... (lJ N c~ -1'::i C) V1 00 ,,, -"' "" 0 'i' <tt <( 0 23:'l' a,~ ~ _,.... ..c,,, z "' "" ::J \!)~ If> o-~ o rn Ln U') ~ ~ T-~--... -N "' ;/; ,o \\l, "" '"' :1 "" [:' <I) [:' [:' U) S· ,->-:z :z z z z z w w w w w w ::s ::s :,; :,; ~ "' ::s i'i i'i i'i iii i'i 0 u u u Ll u u U) VJ <I) u, 01 '" w '" w w w w 0 0 D D D 0 0 0 Cl Cl Cl Cl " u u u " Ll " " " " " "' . IX) "' OJ "' ~ 0 Ol ro ~ ~ "· 0 0 "' "' ', ' "' a, t:. ~ "' t:. ~ N -·, ' 0 ~ ' "' "' en --01 ·-· --- (0 0 0 0 U) (0 0 ~ t') . 'V ·o 0::: : "' U) r--. ~ 0 ....l -<( I-w I-0 <( Jel w 00 .....I (/) a.. z I.() • 0 <( ~ 00 I-..J O> CL <( a::: I-<( 0 iE 3:: ...I I ::> co • (f) <( .-z > ..-0 -z ..-I- I ..-z .....I 0 I") Lt.I <( F co 0:: z .- ~ I=! D ~ l.!.J "' 0 w VJ w "' u, I-:c " °' _, _, -< 0 z " => I- "' 0 0 w "' '° 0 0 N © ' ii $ WWW 0: ·-----004 ·-------------DRAFTER: PG/COIA DESIGNER: PG PROJ. ENGl,./SURV.: CLG DATE: 2-17-09 PROJECT NO.: 05294 SHEET C9 OF 11 L06S0006 ,_ a 0. ::, .,: 0 - !,1 0 a• O> N "' ~ u 0 "' ~ I 0 -.-;;; a i'i: <> C C 0 " C <> ~ 0 a / '.J <> • ~ -:;- 0> N ,n ;l, .;: 10 0 p,wr~. N GRAPHIC SCALE 10 20 :w.la•\sa 1 INCH = 20 FT. 40 I .' '-'' . .-. i ' . LOT 6 () ,,... ( • .i ' . .' . .i I i::,-::,,1.,i.:!l1011::; ;-. I \ I I \ \ > I ; .\,~;(~~;~-~-'&.------------~ ·· 1 I. i :'.'.' I '/'., J 1,.:i..,(i"::; I , . lr,",_i,i.,,, '" :-LOT 5 I <./! I I I ':. ;; I .. '·,,! ,···· I · I ' • 1 I , ' I I ' . I I .:_, I I 1•1 : I I I: " i I I L.. ·------------------ I I I I I I \ \ ' ' R/W SE 1 / 4, NE 1 / 4-, SEC 32, TWN 23N, RGE 5E, W.tv1. , • \ ,i r , \ SIDEWALK RAMP TO EXISTING GROUND STREET LIGHT ~ ·-~£:ROW y1=. SIDEWALK::::\ ~ ~ --,•,,-----~-------->:-----,µ...l\.__-,,:c__ <::::-...___ SE. 183RD CT. ___ (PUBLIC R_O_A_D,_) __ 11+00 -11----1 CURB AND GUTTER/EDGE OF PAVEMENT -·,--~ "'-ROW r----------1 / ----- / I I / I // I I ..,.., i·[''' I / c, .. ·. 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SE. FUTURE R.O. W IMPROVEMENTS SECTION_A N.T.S. NOTE: FINAL CHANNELIZATION TO BE COMPLETED WITH FUTURE ROAD CONSTRUCTION UN EAST SIDE OF 116TH AVE SE. 5' BIKE LANE 6' SIDEWALK i I I I . _., ,-· 1 C~_) . ,('.I .. () '. ~ ~ 0 (/J I ! L • i I 1. j: i I ' ) I I. I I ' I I ' I I ' 'i i ' ' g + ~ l.•.J .. __ .J 10+00 -ti, .. .. · '• i !.I STREET LIGHT ., · .. I -·-·· .. , ~STREET LIGHT .LL,. I iT [ -'n f i I I ! I ':i I ! ·1' ' ! i :i I STA: 22 99.53 10.0'LT ND 7"'1VH°"ITE=-- EDGE LI E I STA: 2 +99.53 0.0 LT ND DOUBLE YELLOW CENTERLINE 1:~: i - 1 : I .. ! STA: 2 +34.29 ~. ~=1 ',,.'_' I j 0.0 LT ND -DOUBLE YELLOW CENTERLINE ~i~=r--r!~:~~ST~A~:,~2~+;3~4~.2~.90~== I g ft [ ~g·J~ Lu ~EGIN ~· \\HITE to~ I I ,- ,- a 0 ~ 10.3' 10.3' I ROW ~---J.;:,-lho--i-l-"c:)c:.(_·_::\(~cc-:·s~T!fA~:~1.::!;+~6g5 . ._1,181!,.,._ 1 •1 g ;J; ,1.::l1!; ~ f hJ f 9. 78'L END EDGE LINE w ._ !@:a: 0.48'R END DOUBLE YELLOW CENTERLINE I I!! i:i iii'!~ i w ;,I: MATC~ EX. CHANNELIZATlON I -O::, 1 [JL< ,-,. Li. ' iii ,,• :JO -"'' II g .J-!:!:l "' 1 , iii 1:: C!) .•. , 0W I-"-· IZ1.t.1 1i1i 0 z C>.1 F Z \O ::J , Z'u.J tll :::J · c.!1 n:: ' F Z fj !~ l~p w I a 0 + . " ,-._ .. I l:i O I ,.. ' il'i I ::,; ' !;! I <[ n.. LL.·! 01 wl "o• 1. ·-, ,~--;'··-·:.! j 1.&.11·f ,--,,1-- GENERAL NOTES ----------------------------- 1. CONTRACTOR SHALL NOTIFY TRAFFIC ENGINEERING (206-296-6596) AT LEAST 10 BUSINESS DAYS PRIOR TO STRIPING TO COORDINATE CHANNELIZATION LAYOUT AND SIGN INSTALLATION. 2. ALL CHANNELIZATION SHALL BE INSTALLED IN ACCORDANCE ~1TH KING COUNTY ROAD STANDARDS. 3. EXISTING STRIPING TO REMAIN SHALL BE REPLACED WHERE DAMAGED OR OBSCURED BY CONSTRUCTION ACTiv1TIES, OR \VHERE FADED, AS DIRECTED BY KING COUNTY. KING COUNTY TRAFFIC ENGINEERING ENGINEER DATE ENGINEER DATE SUPERVISING ENGINEER DATE L-------------·------------------------------------------------------------------_l;;====== ------ • % N tils " "' !f,, "" "" "" V, "' I!! I!! I!! 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' --> •. ,·• c. ·, I \ '" -·-/_.,· ·--... , '\ '' " ' r r·, :-' ·, \ ' I ---·"····-: I If :c:'::c1;1:;•ci :::;:;:;;,::ii" :).,:.',: ,;;-,'i·, · ... :. i I'-~ ,' .. -·-1 1 lj TO 1~·E· :·~~JhVEo :<,, · C/ :-::,: 1 ; }lt 1 r:~~~?) ,.::~:-~/:, :~ 1 -'. i~~:~-.. ~:; ,:) ---·::~?-:(:~i?~;:~·-/(::f:i°/ i I i -·-·- I • ::f. ·--' ' ', .. "· ---~".(/'.-_.' ·, ' ' ' r , ", -·.,,_· ..... , ' -· '··-... --.. TO BE REMOVED ..... ----- .'l '.// ',. -· .. --·---- TREE TO BE I I SA \li:D, TYPICAL _.\, --(}· ·-• . -, \' . ' ,_) d ,) Ui~CY(ki,UI i:'; i'i ' -· .. .-,--., -,c~ I ,· -•.• •-. ,,· -·::.·------' - I ! ' I I I \ ._ , ... ~-.... ---· .... --, ' -·--·-· --------·--' -. : I I I I ' ', I I ', \ y, 0 •• ( ,·, ' ' POTENTIAL LOCA 'ilON OF STORMWAll::R--- '/i.c: .. _, ON TRENCHES [; I --J '.I; I j 1, '·'· •· l I ·~ "r I, J 1~ ·-l :1) I ,~, I II · ,,,l_.u.•' 1 ,, , · I -'"',>Ti-'1 ,\., 11 I I ' I ! TO ~E REMOVED I i ., ---~:II I i I '\,../' 25' FLOW PATH ' ' ' '---'-1- -~--i . 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ORI PLINE I I NOTES: ' I I ; .. '' I ! i I I <" 'Ii I (\. I \ ' /··() ' Vi: 1. 6-FT. HIGH TEMPORARY CHAIN LINK FENCE SHALL BE PLACED AT THE DRIPLINE OF THE TREE TO BE SAVED. FENCE SHALL COMPLETELY ENCIRCLE THE TREE(S). INSTALL FENCE POSTS USING PIER BLOCKS ONLY. AVOID DRIVING POSTS OR STAKES INTO MAJOR ROOTS. 2. FOR ROOTS Ol'i:R 1-IN DIA. THAT ARE DAMAGED DURING CONSTRUCTION, MAKE A CLEAN, STRAIGHT CUT TO REMOVE THE DAMAGED PORTION. ALL EXPOSED ROOTS SHALL BE TEMPORARILY COVERED 'MTH DAMP BURLAP TO PREVENT DRYING, AND SHALL BE COVERED 'MTH SOIL AS SOON AS POSSIBLE. 3. WORK VITI-JIN PROTECTION FENCE SHALL BE DONE MANUALLY. NO STOCKPILING OF MATERIALS, VEHICULAR TRAFFIC, OR STORAGE OF EQUIPMENT OR MACHINERY SHALL BE ALLOWED 'MTHIN TI-IE LIMIT OF THE FENCING. TREE PROTECTION ' .. ' i I ' ,, I '-i \ _ .. u- I.Bf[; LEG!;ND TREE TO BE REMOVED TREE TO BE SAVED NOTE: KING COUNTY DOES APPROVAL IS FOR STORM AND ROAD IMPROVEMENTS ONLY AS SHOWN HEREON. KING COUNTY D.D.E.S. Revtew Englneer Senlor Engineer MOLLY A. JOHNSON, P.E. DEVELOPMENT ENGINEER Comments: ~~---1 Complafad Data Completed Data APPROVAL Dote z 0 ~ ··- -"IS l/) I-z w ::; "' 0 u u, w 0 0 u y OJ s:, ~ ,n I- <( _.1 a.. •-0::: 0 I U) - -- I ' ' N '11.s V) r· z w ::; ::, 0 u U) w " 0 u "' <Xl z 0) -,, "' - ~ ..J 0.. z 0 F z ~ w 0:::: w w P: A 4 Wi< ... 81, "' "" U) ,--z w "' " 0 u U) w 0 0 u "' ID z gj ' 0, w U) • ~ <( ·- -,,-!q, "' I!! µ z z w w ::; " ::; "' 0 0 " 0 U) U) w w " 0 Cl s u "' "' "' "' 0 z_ ' ID "' "' N• ,, ' 0 --~· <O '"" <n t-z w "' ::; 0 u U) w 0 0 '-' "' 0, 0 ·, n 0:::. N <O g 0 (/) <O 0 'Z I') ·c'; ·. , ,.rv . ·"• ,, LL .' ::) .~ _I(/) § • z g z w 0::: DRAFTER: PG/COM DESIGNER: PG PF,OJ. Et,JGR./SUl,V.: CLG DATE: 2-17-09 PROJECT NO.: 05294 SHEET C11 OF 11 u z ,0 8 N g L06S0006 ,,-,-------~ ·----·---. ,.. --------,. ·-· --·--·--------------···--------------- --------... ' ---------- ,' ' i ' ' '