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HomeMy WebLinkAboutPermit D99-0335 - Gadzuk Residence - Garage,%;. 9.0 k'-e • • r.3 • - ,0„ Ai r;kt a liat - D99-0335 • • :: Brian Gadzuk City of Tukwila ( Lr (206) 431-3670 Community Development / Public Works • 6300 Southcenter Boulevard, Suite 100 • Tukwila, Washington 98188 Parcel No: Address: Suite No: Location: Category: Type: Zoning: Const Type: Gas/Elec.: Units: Setbacks: Water: Wetlands: Signatur WARNING: IF CONSTRUCTION BEGINS BEFORE APPEAL PERIOD EXPIRES, APPLICANT I'S PROCEEDING AT THEIR OWN RISK. Print Name:_ 004000 -0630 4813 S 146 ST NGAR DEVPERM 001 North: 125 Contractor License No: The granting of thi cancel the or the per developnie Permit Center Authorized Signature: DEVELOPMENT PERMIT South: Sewer: Slope's: p r ion of 'rmance of w t permit. y oti r e • Ill Fire .0 East: VAL VUE Y Permit No: Status: Issued: Expires: Occupancy: UBC: Protection: .0 West: Streams: End, Ti Fi D99 -0335 ISSUED 06/09/2000 12/06/2000 PRIVATE GARAGE 1997 OCCUPANT BRIAN-.GADZUK 'Phone: 4813 5 146 ST, TUKWILA, WA 98168 OWNER MARKHAM HOWARD 4823 S 146TH ST, SEATTLE WA 98168 CONTACT BRIAN GADZUK Phone: 206-870-9317 19815 35 AV 5, SEA TAC, WA 98188 * kk*** k k**' k****** k** k*****: k* k****• k: k k* k** k* Ak* k*********• k** k k* k ** * * * * ** Permit Description: CONSTRUCTION OF A NEW 1,500 SO FT DETACHED GARAGE. PUBLIC WORKS ACTIVITIES INCLUDE: STORM DRAINAGE. Ak k**' k' k**' k*** k** A*' k* A** k*• A*' kA**• k• k* k*' k*****'k** Ak** kk*********' k •k'k *'A*'A** *'k* ** Construction Valuation: $ 10,000.00 PUBLIC WORKS PERMITS`: A(Water Meter Permits Listed Separate) Eng. Appr: LJM Curb Cut' %.Access /Sidewalk /CSS: N Fire .:.Loop Hydrant: N No: Flood Control Zone: N Hauling: N Start Time: Land Altering: Y Cut: 44 44 Landscape Irrigation: N Moving Oversized Load: N Start Time: End Time: Sanitary Side Sewer: N No: Sewer Main Extension: N Private: N Public: N Storm Drainage: Y Street Use: N Water Main Extension: N Private: N Public: N k ** k**************** ** ** * ** * * ** ****k** *** * * * ** ***** k k* *** *** **•k *•k'k k'k•k* **** k * *•k * * *'k Date (0" Size(in): .00 me: 1.1: . 0 I hereby certify that I have read and examined thin permit and know the to be true and correct. All provisions of law and ordinances governing work will be complied with, whether specified herein or not. same this es not presume to give authority to violate or state or local laws regulating construction authorized to sign for and obtain this Date: 6 ~2 =1:, V This permit shall become null and void if the work is not commenced within 180 days from the date of issuance, or if the work is suspended or abandoned for a period of 180 days from the last inspection. CITY OF. TUKWILA 0 Address: 4813 S 146 ST Permit No: 099-0335 SUite: Tenant: Status: ISSUED • Type: DEVPERM •Applied: 09/14/1999 Parcel #: 004000-0630 issued: 06/09/2000 • *4.*k********A*AA**A**4.4,A**A*****k*****WA***Altk*kkIkA4k***A*VA***kl(*A**)(kk* Permit Conditions: 1. No changes will be made to the plans unless approved by the Engineer and the Tukwila Building,Division. 2. Engineered truss drawings and calculations shall be on site and available to the building inspector for inspection purposes. Documents shalt bear the seal and signature of a Washington State'ProfOsSional 'Engineer. 'Y- 3. All construction to done in conformance With approved plans and requirements of the Uniform Building Code (1997 Edition) as amended, Uniform Mechanical' Code (1997 Edition), and Washington Stdte Energy Code (1997 Edition). 4. Validity of Permit. The Assuance of a permit or approval of plans ,'specifications, and computations shall not be con-. strued' to be a permit for or an approval of, any violation of any of.tpe provisions of the building code or of any ' other ordinance of the jurisdiction. No permit presuming to give ,authority to violate or cancel the provisions of this code shall be valid. 5. Elec riLal permits shall be obtained through the Washington' State Division 'of Labor and Industries and all electrical w61 will he inspected by that agency (248-6630). 6. NOTIFYTUBLIC WORKS UTILTIY INSPECTOR MR. GREG VILLANUEVA @ (206)433-0179 AT LEAST 24 HOURS BEFORE COMMENCEMENT AND COMPLETION OF WORK. 7 Temporary erosion control measures shall be implemented as the first order of business to prevent sedimentation of or into existing storm drainage facilities . 8. The site shall have permanent 'erosion control measures in place as soon as possible after final grading has been completed and prior to the Final Inspection. 9, FROM OCTOBER 1 THROUGH APRIL 30, COVER ANY SLOPES AND STOCKPILES THAT ARE 311: IV OR STEEPER AND HAVE A VERTICAL RISE OF 10 FEET OR MORE AND WILL BE UNWORKED FOR GREATER THAN 12 HOURS. DURING THIS TIME PERIOD, COVER OR MULCH OTHER DISTURBED AREAS, IF THEY WILL 8E UNWORKED MORE THAN 2 DAYS. COVERED MATERIAL MUST BE STOCKPILED ON SITE AT THE BEGINNING OF THIS PERIOD. INSPECT AND MAINTAIN THIS STABILIZATION WEEKLY AND IMMEDIATELY BEFORE, DURING AND IMMEDIATELY FOLLOWING STORMS. FROM MAY 1 THROUGH SEPTEMBER 30, INSPECT AND MAINTAIN TEMPORARY EROSION PREVENTION AND SEDIMENT AT LEAST MONTHLY. ALL DISTURBED AREAS OF THE SITE SHALL BE PERMANENTLY STABILIZED PRIOR TO FINAL CONSTRUCTION APPROVAL. 10. Hauling over 50 cy shall require application for a Hauling Permit prior to any associated activity. Infiltration systems shall be used whenever sail types an site. conditions permit. Infiltration systems shall' not negatively impact "any. existing properties the area.. It is strongly recommended: that ..storm 'drainage designs be by ;a licensed engineer; otherwise,. the owner. 'assumes liability for the design and any subsequent` related. damages. CLEAN STREETS: AND REMOVE. DEBRIS FROM CITY . STREETS. ALONG THE `.HAULING: ROUTES AND AT THE . CONSTRUCTION SITE. Nval Prw'�ct Name/Tenant: 1z3 * it...() 6 ; Value of Construction: /d. °" Site Address: /ye (.3 5 ) �/. ._.-- City State /Zip: ),1 y w; )._ (A/R 48(6 Tax Parcel Number: DO- yo)o • o63o Property Owner: Ste}. V1,1 .e, /.5 sq. ft. Garage /Carport sq. ft. Accessory Structure(s) sq. ft. Uncovered Deck Phone: Street Address: City State /Zip: Fax #: Contractor: " Provide documentation that shows the principal owner lives in one of the dwellings as his or her primary residence. Phone: Street Address: City State /Zip: Fax #: Architect: :5.A S De 51 1 Phone: (Z06 S `x ql Street Address: City State /Zip: 'Fax #: Engineer: Phone: Street Address: City State /Zip: Fax #: ntact Q -A *?UA Phone: ZoG pzY -) 18o3 Street Address: / 38 4'- 4 City State /Zip: - S �e/A i I ry (A/A_ c7A (o 3 Fax #: Description of work to be done: i4__uJ G 9 e Type of work: ❑ New Single - Family Residence ❑ Addition - Single - Family Residence ❑ Interior Remodel- Single - Family Residence ❑ Residential Accessory Structure* ❑ Remodel /Addition to Accessory Structure - Garage(s) ❑ Deck(s) - Covered & Uncovered ❑ Residential Reroof Is this site served by: a Sewer ❑ Septic (King County Health Dept. approval required - 296 -4722) Existing Sure Footage for Structure: sq. ft. Dwelling sq. ft. Covered Deck(s) sq. ft. Garage /Carport sq. ft. Accessory Structure(s) sq. ft. Uncovered Deck Proposed New Square Footage: sq. ft. Dwelling sq. ft. Covered Deck(s) /.5 sq. ft. Garage /Carport sq. ft. Accessory Structure(s) sq. ft. Uncovered Deck Floor Area Ratio: (total floor area of all structures divided by the area of the lot) *F,,�rcessor dwelling, provide the following: �d `r Lot area Floor area of principal dwelling Floor area of accessory dwelling " Provide documentation that shows the principal owner lives in one of the dwellings as his or her primary residence. Dateglicaiop Iceptic) Date ag�llcatign pxgires: CT-C7 Applic`�en by: (initials) CITY OF TUKV 'LA Permit Center 6300 Southcenter Blvd., Suite 100, Tukwila, WA 98188 (206) 431 -3670 Single- Family Residential Permit Application Application and plans must be complete In order to be accepted for plan review. Applications will not be accepted through the mail or facsimile. APPLICANT REQUEST FOR PUBLIC WORKS SITE/CIVIL PLAN. REVIEW OF THE. FOLLOWING: (Additional reviews shall be determined by the Public Works Department) ❑ Channelization /Striping ❑ Curb cut /Access /Sidewalk El Fire Loop /Hydrant (main to vault) #: Size(s): ❑ Flood Control Zone ❑ Hauling ❑ Land Altering: 0 Cut 3a cubic yds. 0 Fill cubic yds. ❑ Moving an Oversized Load: Start Time: End Time: El Sanitary Side Sewer #: ❑ Sewer Main Extension 0 Private 0 Public Storm Drainage ❑ Street Use ❑ Water Main Extension 0 Private 0 Public ❑ Water Meter /Permanent # Size(s): ❑ Water Meter Temp It Size(s): Est. quantity: gal Schedule: ❑ Miscellaneous Value of Construction - In all cases, a value of construction amount should be entered by the applicant. This figure will be re- viewed and is subject to possible revision by the Permit Center to comply with current fee schedules. Expiration of Plan Review - Applications for which no permit is issued within 180 days following the date of application shall ex- pire by limitation. The building official may extend the time for action by the applicant for a period not exceeding 180 days upon written request by the applicant as defined in Section 107.4 of the Uniform Building Code (current edition). No application shall be extended more than once. PLEASE SIGN BACK OF APPLICATION FORM SFPI :RMIT.DOC 2113/97 FO TAFF USE ONLY BUILDING OWNER OR AUTHORIZED AGENT: Signature:s ,[I Date: q _ _ q Print name.\Z„a` v (- Att12 4- P r:2L/ �/-"7(9es IFax It: >�,ddre 0 : c '� .ri —' 1 1Stato /Zip: "F ,ti ft- G►1 A- qv l b>;i' ALL SINGLE FAMILY RESID ' TIAL PERMIT APPLICATIONS MUST - SUBMITTED WITH THE FOLLOWING: DRAWINGS PREPARE ► .Y A REGISTERED ARCHITECT OR 1..OFESSIONAL ENGINEER MAY BE REQUIRED BY THE BUILDING OFFICIAL • ALL DRAWINGS SHALL BE AT A LEGIBLE SCALE AND NEATLY DRAWN • BUILDING SITE PLANS AND UTILITY PLANS ARE TO BE COMBINED N/A SUBMITTED El ❑ Copy of recorded Legal Description from King County ❑ ❑ Certificate of water /fire flow availability (Form H - a). Contact the Public Works Department (206) 433 -0179 for servicing district. ❑ El Certificate of sewer availability (Form H -11). Contact the Public Works Department (206) 433- 0179 for servicing district. ❑ ❑ Metro: Residential Sewer Certification (if Tukwila Sewer District) (Form H -12) ❑ ❑ King County Health Department approval for septic - 296 -4722 Four (4) sets of working drawings, which include: ❑ ❑ Site Plan (see example Form H -16) 1. Existing fire hydrant location(s). 2. Proposed access road. 3. Driveway location- driveway shall be 10' wide minimum and 20' wide maximum. If driveway is over 150' long, driveway shall be 20' wide and have an approved turnaround (City Ordinance 1741). 4. North arrow and scale. 5. Building setback from property lines. Any proposed or existing easements must be shown on plan. 6. Public Works review requires the following on site plan: driveway location (10' min., 20' max. width), show proposed and existing power, water and sewer lines, existing storm drainage system, downspouts and foundation drains, and where drains tie -in. 7. Parking plan. 8. Lowest building elevation (if in Flood Control Zone). 9. Estimated /proposed topography at 2' intervals and proposed elevation of lowest floor level. 10. Identify location of sensitive areas slopes 20% or greater, wetlands, watercourses and their buffers. 11. Identify location and size of significant trees that are located in sensitive areas and buffers or the shoreline zone. Of those, identify which are to be removed (Title 18, City of Tukwila Zoning Code). 12. Identify location of high water mark of the Green /Duwamish River if site is located within 200' of the high water mark. 13. See Public Works Checklist for detailed site plan information required for Public Works Review (Form H -9). ❑ ❑ Foundation plan and details ❑ ❑ Floor plan ❑ ❑ Roof plan ❑ El Building elevations (all views) ❑ ❑ Building height ❑ ❑ Building cross - section El El Structural framing plans and details necessary to completely describe construction El El Washington State Energy Code Data (Gas /Electric /Oil /Propane /Heat Pump) Form H -15 available at Permit Center OR Prescriptive Heating System Sizing Chap 9 Form H -6. ❑ ❑ Complete Land Use Applications if not previously submitted (i.e., Reasonable Use Exception, Variance, Shoreline or Tree Permit). ❑ El Attach plans, reports or other documentation required to comply with Sensitive Area Ordinance and other land use or SEPA decisions. If dwelling has a septic tank, and a bedroom or bathroom are added, provide written approval from the King County Health Department or the Tukwila Public Works Department prior to submittal of permit application. ❑ El Copy of Washington State Department of Labor and Industries Valid Contractor's License. If not available at the time of application, a copy of this license will be required before the permit is issued, unless the homeowner will be the builder OR submit Form H -4, "Affidavit in Lieu of Contractor Registration ". ❑ ❑ Building Owner /Authorized Agent If the applicant is other than the owner, registered architect/engineer, or contractor licensed by the State of Washington, a notarized letter from the property owner authorizing the agent to submit this permit application and obtain the permit will be required as part of this submittal. t HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE UNDER PENALTY OF PERJURY BY THE LAWS OF THE STATE OF WASHINGTON, AND I AM AUTHORIZED TO APPLY FOR THIS PERMIT. SFPERMIT.DOC 2/13/97 4. '*: E'* k* d. sk• Afir'**.** tt• Ah**:4***A• -M;4 *i444le•h•k4 9 *'**!:*•*•A0;V•h•* *4.:1 *.a. ciT.`l cal= TUh,wIl.y.. S4t:1 • Mopr••ini ed c 06/V9/00' 1D:05 : TRANSMIT ;' f, h. a1•'A •! Ii d 'e1 •k 4 4 * * *• * ;s. ale •A * ;4; :1 k •k * * c :k •F: ;1 ;\ k A •M •k * d 0 ± * k * * A A• •k * •k z1 fi 1 * * 4 i. A •h• * 1• TPAtr'at4IT !lumber: R9800298 Amount;: 271:25 06 0'1,00. 1004 ',PItyberit:.. Me: CHECK( Notnt•ivrli Flt ?CA0V HOMES 'hit: TL.L Perm At acts' 0.?9»0335 Type: DE:VPE:RM DEVELOPMENT PERMIT .Parcni • No: 0.04000- 0630 • . .S i t ee .A d,d r e s's a 4810 r 14.6 ST Total Pecs: 389.06 TNiit, Pavmr~rlt 271.25 Tc:•ta1 ALL Pmts: 389. Ua1 anco: .00 t k*Aa #,* k+ .•A4.* *• ** * ** ***;1kt1•A.*14 0 ;! *0..;1 ***a *•kA•kk*d•n 1• k1 * * ** * **isit*d•kd;.A•k* • Account Code' . 000/:322. 100 000/345.1330 000/ 386 .904 • 41'2 x3.4'2. 400 :000/322.100 000/3.4'3.. 1330 De:rl:i "iption BUILDING RES PLAN CHECK,- U'f ILI1 Y ' . STAIE BUILDING SURCHARGE INSP FEE STORM DRAM LAND, ALTERING PERMIT FEE LAND ALTERING PLAN CHECK: Iliinounl• 101.2 10.00 4.50 1'3.00 23.30 5022 06/12 9717 TOTAL 2342.00 ...,.. s nicer* 1 *1. * *•A•1AA *A •1 4.6. :4 A:4 ►• -4 l• : 4: 4.*A ;IT4 A:4* eA 41 */ *•Ak - C12 Y; OF TUK�WILA !N L./ 3 14:i+NSH1 T hk.$Aka k * : **A *dr* *A**4*kkA*4 ***'k *Ak*•114 kk *:1• * * **.k* *A **'h:1:l *.**A 1RAN8W11" Number: : 89800149 Amount:: 117.81 09/14/99 161:4(' Navment Method . I:I1I:Cit l4obaR.iana ARCADY HO.M .:: 'nit: fL8 Permit No: 1399. -03:35 Noe: DEVPt=tt44 DEYEt OPtlENf . PERMIT Parcel No: 004000-0630 '% 8its Address: 4823 a 146 ST total Fe ?tag. 303.'36 1 Payment 1 Total ALL brats: 1l7.81 kl�zlancew 185.75 *+i *A* **d.kA * ** ** *?** *: *4 ** * ** *** * *** * ** *k *4 * . * * *k *"b*:4 * * * * **k* Account. Code Description Amount 000/345.830 PLAN CHECKS RE5 117.61 Pr Type of lzpea A ori 3 5. lipmi sf Date called: fi l t Special instructions: Date wanted: V h , .„0. / P.m. Requester: --,—) DA la/71 A i g ., Li c i ---7965 INSPECTION NO. CITY OF TUKWRA BUILDING DIVISION 6300 Southcenter Blvd, #100, Tukwila, WA 98188 iltIttea& CI INSPECTION RECORD Retain a copy with permit PERMIT NO. (296)43J-3670 Approved per applicable codes. Ei Corrections required prior to approval. CO? AMENTS: c.07A, Inspector: orp.....) Date: $47.00'REINSPECTIO F.EE REQUIRED. Prior to inspection, fee must be p( id at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No: Date: 4 11110 6114., 710 .k Project: cia j zit _lc Type of Inspection: dui Address: 4iiri? 5 1% Date called: i :. , 4 ..,„ 4/ 1/ '" Special instructions: 6CULC , . r /Date wanted: I i / a.m. P.m. Request : ...4_ V,Lee 9 i Phone: ;••■••:, - • ■ PA-) INSPECTION NO. INSPECTION RECORD Retain a copy with permit CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd, #100, Tukwila, WA 98188 Dq9-0113c PERMIT NO. (206)431-3670 Ariproveep applicable codes. D Corrections required prior to approval. COMMENTS: /1 ate4, Inspector: XI) Date: // El $47.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No: Date: inAttVXZWat•n'g• .," COMMENTS: � ' f c T o , `, kH 2-- f D, <), Ti . CM os (<rtn,.11.. - 113 `4 t tY C414j1., ,A4W 5.6:( ((, uLt 1,.) 1 11.4j Ccait -6 4 . To jJ % t!J, (U'l,ry,.,v% . li sod 't.l../ IA.A.cli.-4").". tilitiNe 1 . Special instructions: Date wanted: c l/l C iP0 a.m. p.m. Re nester: �l C7 L * Project: q 7rak kr Type of Inspection: S� Address: �I, RCA . M S. Date called: q�iiV� Special instructions: Date wanted: c l/l C iP0 a.m. p.m. Re nester: �l C7 L * Phone: 7 Ci? INSPECTION RECORD Retain a copy with permit ECTION NO. ITY OF TUKWILA BUILDING DIVISION /6300 Southcenter Blvd; #100, Tukwila, WA 98188 PERMIT NO. (206)431 -3670 Approved per applicable codes. El Corrections required prior to approval. Inspector: (4, Date: q/ (q166 • $47.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No: Date: 47. Pro t: ,a, i e",. I- Type Inspection: ..,k- r //h0,Yiari, Date c led: i -9 0 Address: 0 3/Z) S • /Z./.-6-- i-- Special instructions: _ wan Date wa ter a.m. Requester:. 01 i a. in Pho e: ' " • 5 1 /6 1- 2 _ . INSPECTION RECORD Retain a copy with permit INSPECTION NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd, #100, Tukwila, WA 9818 PERMIT NO. (206)431-3670 pproved per applicable codes. Corrections required prior to approval. COMMENTS: El $47.00 REINSPECT! FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No: Date: Project: 9a _/ a k f (�f T ype of Inspection 11 T/GI-, Address: ifs. S. N6SI Date called: " S' llI Special instructions: � '� //�f'L( Hai" �-"I • Date wanted:Q ) `7 f� '� p Requester: n � G _/ t/ , ? /it- Phone: Z 1 6 50 • INSPECTION RECORD Retain a copy with permit INSPECTION NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd, #100, Tukwila, WA 98188 PERMIT NO. (206)431 -3670 ❑ , Approved per applicable codes. Corrections required prior to approval. COMMENTS: q / '7 /Q?. /L G / rep Inspector: 611 Date: p / $47.00 REINSPECTION FEE REQUIRED. Prior to inspection, feelnust be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No: Date: f, COMMENTS: /) 7: ,..,.., ?) 4-///441- ho /iK. it. .9-4, . )?I' Address: L '7 1 , 5 S . i 4 . - /Gf , t-- - Date called,_• R r i c-) s) , z, ei h fr, 7 4‘.....)1d., % 11. (2 ( LL) Vel • C ag/tt.f d-17il., keer,d6, 4.) 91- A Wi.-- ri--e, r -1,..."-- r.."N. rr;.,// . r 7 1 fr--t...c.,c,„-e 5 I/ /, .9-7_ )L 4 ile - 5 , s IF i-et ,t-A,,,, 4. tg _ 1 / ,-, a Project: '7 i i elt. in 6a ri 'El.( k - Type of Inspection: .--(--• A r ii5 Address: L '7 1 , 5 S . i 4 . - /Gf , t-- - Date called,_• R r i c-) Special instructions: Date wanted: 5'7 - Creft) cal p.m. Requester: Z r ■ 43 ,--) Phone: 9-..9- 4//O 2_. ,ocemrs, • v.,■11.1.7 Ct. wes41.• . f 1 )1 Jr' INSPECTION NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd, #100, Tukwila, WA 98188 Approved per applicable codes. INSPECTION RECORD Retain a copy with permit PERMIT NO. (206)431-3670 CS \ Corrections required prior to approval. J $47.00 REINSPECTION E REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Inspector: Date: Receipt No: Date: • "' '`• " • koject: f 1 f (1. Cr7A )I•S 4 pe of Inspection: Ill ea. WI A Date called: ' . 00 1, Special instructions: ,'<-- Date wanted: Ca.ra.....„. Reqster: r. , A-._ r elecCMLII Phopqj O _ ... ,... _ LA ( 1305 , •:P•V'X:•gr.X.WrFACAI•SZt.taaW.U...nV.A.SP•.n.t.p.2•xvaaocn0+Acvoss•tsrr.tampr•••••.w.Nnmd.tw..s.yoe.•atraaysoe•nnere...+r<w..tr•ra‘IwWenw•Yn.aslmmt.Ftrgrsgo.",FT,V"............nf • . •• • • • • I I I ••• .. • • INSPECTION RECORD Retain a copy with permit • INSPECTION NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd, #100, Tukwila, WA 98188 I) roved per applicable codes. AP PERMIT NO. (206)431-3670 Corrections required prior to approval. COMMENTS: $47.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No: Date: Project: `r ICI (V (- r,/zor-.. ,,, ' .pe of Insp Iy loormacclion ( ,Address:_ . L M)3 C5 /h)4 Si Date called: co-00 -...., Special instructions: Call 1 ov r- 62--f-orf.- 0, vir t oa- t Date wanted: s (le - d-,)- 03 a.m. ( n ) Recmet: r P one: • • I `• . • " INSPECTION NO. INSPECTION RECORD Retain a copy with permit CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd, #100, Tukwila, WA 98188 COMMENTS: oftel4r-'. wilmitirs=mgegrovim. / Approved per applicable codes. Corrections required prior to approval. Date:6_2242) $47.00 REINSPEC ! FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No: Date: r _ _ PERMIT NO. (206)431-3670 ..` :. . ~: ����� . _ Small Site Drainage Review Targeted Drainage Review Full Drainage Review Large Site Drainage Review Single family residential projects that add 2,000 to 10,000 sf of new impervious surface AND clear <2acres or < 35% of the site, whichever is greater. Small Site projects or other small projects thatarenotoubjec to Full or Large Site DminoQoReview oadeto� mined in Sections 1.1.2.3 (p. 1-13) and 1.1.2.4 the characteristics of one or more of the following categories of projects: 1. Projects containing or adjacent to floodplains/sensitive areas; or projects within a Landslide Hazard Drain Area (LHDA) or Critical Drainage Area; or rural zoned projects subjec to areal clearing limits per KCC 16.82.150(c) 2. Projects proposing to construct or modify a drainage pi e/ditch that is 12' or larger or receives runoff from a 12^ or larger draina pipe/ditch 3. Redevelo t projects proposing �$1OD.O0Oinimprovements to a high-use ahe. All projects, including redevel- opment projects, that add ?.S.00O sf within a LHDA) of new impervious sur- face but do not qualify for Small Site Drainage Review, OR redevelopment projects $500,000 that create �5.00Oof of contiguous pG|Sfmm new and/or replaced impervious surface. UPDs, OR projects that result in�6D acres of new impervious surface within a subbasin or multiple subbasins that are hydraulically connected, OR projects on sites 50 acres within the recharge area of a sole-source aquifer. Category 1 Category 2 Category 3 SMALL SITE REQUIREMENTS 7 CORE REQUIREMENT #1 Discharge ��Natural Location *p/ .' ~ • V V • ~ • ~� ' CORE REQUIREMENT #2 OMaiteAnu|yoio *(2) ��vn ~ ��oo ~ ��m> ~ CORE REQUIREMENT #3 Flow Control *p> ��u> ' ��o> ~ CORE REQUIREMENT #4 Conveyance System *w> �� ~ �� ~ �� ~ CORE REQUIREMENT #5 Erosion & Sediment Control -� � �� r � / � � / � — ( � CORE REQUIREMENT #O �Waintunonco&Opoo�iona a,w> �� � �� " �� ~ �� ~ CORE REQU|REMENT pinonnia|Guarantees &Liabiidy *(2) ' ��m/ ~ ��m , � ~ —�m ~ CORE REQUIREMENT #8 Water Quality *(n ��w) r �/m) , SPECIAL REQUIREMENT #1 Other Adopted Re i t _,� � � ( w ~ ��(w � Floodpin/Floodwy Delineation SPECIAL REQUIREMENT #3 Flood ProtecdonFoci|idoo �� m> � .^�(z) � —^p) � SPECIAL REQUIREMENT #4 Source Control _ ( w � —�� � , —�w r —�w », —�w ~ SPECIAL REQUIREMENT #5 Oil Control . . ~��/ r ��w> � • • �^<n> ~ (1) Category 3 projects that install oil controls which construct or modify a 12-inch pipe/ditch are also Category 2 projects. (2) May be applied by DOES b d on project or site-specific conditions. w These requirements have exemptions or thresholds which may preclude or limit their application to a specific project. SECTION 1.1 DRAINAGE REVIEW 9/1/98* 1 1998 Surface Water Design Manual H R E s H 0 0 R E 0 M T $ OR 1.1.2 DRAINAGE ,.EVIEW TYPES AND REQUIREMENTS 1.1.2.3 FULL DRAINAGE REVIEW Full Drainage Review is the evaluation by DDES permit review staff of a proposed project's compliance with the full range of core and special requirements in this chapter. This review addresses the impacts associated with adding new impervious surface and changing land cover on typical sites. Threshold Full Drainage Review is required for any proposed projects, including redevelopment projects; that are subject to drainage review as determined in Section 1.1.1 (p. 1 -6), AND which meet one or more of the following criteria: • Projects which add 5,000 square feet or more of new impervious surface but which do not qualify for Small Site Drainage Review as specified in Section 1.1.2.1 (p. 1 -9), OR • Projects located within a Landslide Hazard Drainage Area which add 2,000 square feet or more of new impervious surface but which do not qualify for Small Site Drainage Review per Section 1.1.2.1, • Redevelopment projects proposing $500,000 or more of site improvements which create 5,000 square feet or more of contiguous pollution - generating impervious surfacet 6 through any combination of new and/or replaced impervious surface. Scope of Requirements IF Full Drainage Review is required, THEN the applicant must demonstrate that the proposed project complies with the following requirements: • All eight core requirements in Section 1.2 • All five special requirements in Section 1.3 Engineering plans and calculations stamped by a licensed civil engineer registered in the state of Washington must be submitted to demonstrate compliance with these requirements. The procedures and requirements for submittal of engineering plans and calculations can be found in Section 2.3. 1.1.2.4 LARGE SITE DRAINAGE REVIEW Large Site Drainage Review is applied to development proposals that are large and/or involve resources or problems of special sensitivity or com lexit . Because of the large size and complexities involved, there is usually a greater risk of significant impact or irreparable damage to sensitive resources., Such proposals often regdire a more deltnitive approach to drainage requirements than that prescribed by the core and special requirements in Sections 1.2 and 1.3; it may be appropriate to collect additional information about site resources, use more sophisticated models, and prepare special studies not specified in this manual. Large Site Drainage Review entails preparation of a master drainage plan (MDP) or limited scope MDP which is reviewed and approved by DDES. 14 The threshold of 5,000 square feet or more of new impervious surface shall be applied by threshold discharge area and shall include all impervious surface that will ultimately result from the proposed project (e.g., impervious surface that will result from future homes within a plat or short plat). 15 Landslide Hazard Drainage Areas are delineated on a map adopted with this manual (see map pocket inside of back cover), 16 Pollution - generating impervious surface (PGIS) is partially defined on page 1.4 and fully defined on page 1-50. Contiguous pollution- generating impervious surface (PGIS) means a discrete patch of PGIS that is all together as opposed to being separated in different locations on the project site. The intent is to identify those redevelopment projects that are replacing and/or adding enough impervious surface in one location to allow for opportune installation of a water quality treatment facility. 17 Replaced impervious surface is defined on page 1-4. 1998 Surface Water Design Manual 9/1/98 1 -13 I. • • CONSULTING ENGINEERS 6.14 1■,1;-;0 FAX 425-643-3429 dh. Dci9---033 1041 1 AKE ;Ar,rf.1;:,r, PARKWAY SOUTHEAST • BELLEVUE • WASHINGTON • 98008 dchemphill@insn.com t 4813 S 146' St, Tukwila, 98168, Page & Grid 655 F3 • IIMM I O INE INN • E Mii CLIENT : Peter Gadzuk 2024 NE 103 Street Seattle, Washington 98125 REFERENCE : Proposed house located at 4813 S 146 St, Tukwila SUBJECT : Drainage investigation and recommendations INTRODUCTION The purpose of this report is to present the results of an investigation of the existing and proposed drainage of the property located at 4813 South 146 Street, Tukwila (site), as shown in Figure 1 on the opposite page. The investigation and report were authorized by Peter Gadzuk (CLIENT) on 11 November 1999 during a meeting with Dale C. Hemphill of HEMPHILL CONSULTING ENGINEERS (HEMPHILL). DRAINAGE CHARACTERISTICS of GENERAL VICINITY HEMPHILL investigated the drainage patterns of the general vicinity of the site. Figure 2 on the next page is a topographic map that shows approximate contours of elevation for the vicinity of the site, but is not accurate for the Gadzuk property, which will be shown later in the report. HEMPHILL observed that the storm drainage system for most of the vicinity is drain ditches along the streets. Most of the houses in the vicinity of the site, both old and new, have splash pads under the downspouts. The downspouts at a few houses enter the ground. HEMPHILL assumes that those pipes eventually empty into the drain ditches. 1=111111111111 sussmi man: 0 FIGURE 2 TOPO MAP & DRAINAGE of VICINITY 1 \. • ut 2nd • A Project Number 2469 23 January, 2000 page 2 of 12 pages West of the intersection of 46 Avenue S and S 146 Street is the crest of the hill where runoff flows to the west. Some of the water east of the crest flows to a catch basin at 46 Avenue S, and some runoff continues in an easterly direction and eventually flows to drainage ditches on both sides of S 146th Street. Runoff from houses on both sides of 46 Avenue S enters the street from splash pads and lawns, then combines with runoff from the street, and flows north to S 146 Street. The volume of that runoff that continues to the north, and that flows east on S 146 Street, could not be determined. A large lawn area on the east side of 46 Avenue S sheet flows to the east into the nursery that runs along the entire westerly side of the Gadzuk property. That runoff, and sheet flow from the back yards of some of the houses along the east side of 46 Avenue S, then continues easterly, combines with runoff from the nursery, and then flows along a series of drainage ditches to the east side of the nursery (west side of the Gadzuk property). A drainage ditch along the east side of the nursery then intercepts the runoff and conducts it south to the gully at the south end of the Gadzuk property. Runoff that enters the north west end of the nursery flows north to S 146 Street. Runoff from houses on both sides of S 148th Street • run onto splash pads, across lawns, and into drainage ditches. Runoff from the houses on the south side of the street might flow to the south, but that could not be verified. Runoff from S 148 Street empties into the south side of the gully on the Gadzuk property. A geotechnical report by GeoTech Consultants states that the head of the gully is composed of fill. Because of the steepness of the gully at the west end, it is likely that the gully would naturally have been more gentle and continued farther to the west. The gully was probably filled during the construction of S 148 Street. EINEIVIPHILLI FIGURE 3 TOPOGRAPHIC PLAN of SITE S 146 Street r sll I `� lK.t' MT I t \ i 3i 1 I I ' € 1 / / I I ,' B \ ED K r I _ I a kJ i l j. I `\. � 1; z!LJ -ter pt � n' +o f }4 1 (YY yr we Z I 1 \ I 1 �f. -,rte- 11•• (r 1`�`c C 1 1 I \\ \11i1t 1,II "'" I ♦i 1 1 I � � � Ii. NI- '.‘ f'1..1.\ 1\\\\\\ ‘ \ \ 0- N r /II r'�i„_J� I 1,""%�.27_�= ` ��- _s � t111111 � 77.3 "° IIII111 I > '_flI- �IIIIIIII��� \1 1 � � .� -io:: 11111(\ \ �\�\ i 1 � (• -_I rit \1111 \�\\ \\.I• ; rii0 ,_ .... 1 . "" • r` \\ \ of I \ 1 \`k..,�.z \,, ,-. \ C� '' . S 148th Stre `\ << y- \ \��� \�;��;���: , \ \ � \ \ \ \ Project Number 2469 23 January, 2000 page 3 of 12 pages DRAINAGE CHARACTERISTICS of the GADZUK PROPERTY Figure 3 on the opposite page shows the approximate topography of the site as it presently exists. The contours of elevation will be relatively unchanged after construction except for some minor regrading around the proposed house and garage. The elevations were assumed by the surveyor. Runoff leaves the Gadzuk property at 3 locations: 1. Runoff from the north 175 feet of the driveway easement through Lot A flows north to the drainage ditch along the south side of S 146 Street. That drainage ditch ends at the east end of the street. Runoff then appears to free flow through heavy vegetation, and disappears onto the lower slope. The runoff appears to sheet flow to the base of the hill at 51 Avenue S. At the time of the investigation there was no evidence of erosion within the drain ditch or on the lower slope, or that the drainage ditch ever runs to capacity or overflows, even though there had been 2.5 inches of rainfall for 3 days prior to the site visit. 2. Runoff from Lot B sheet flows to the neighboring property to the east. Some of the runoff is .then intercepted and conducted south to the gully on Lot C. The rest of the runoff sheet flows past the house and eventually flows southeast to the gully southeast of Lot C. There is no evidence of erosion or flooding on the east property, although increased flow might not be tolerated. After construction flow to the east will be reduced, and will be intercepted bya grass lined swale. Runoff from the proposed roof areas of the developed Lot B will be intercepted and conducted to the south through piping. Runoff from driveways and lawns will sheet flow to the grass lined swale to be biofiltrated. HEMP,!U,L, PHOTO 1 NORTH SIDE of RAVINE PHOTO 2 EAST END of S 148 STREET (DEAD END) Project Number 2469 23 January, 2000 page 4 of 12 pages 3. Runoff from Lot C flows to the south and east into the gully that was created by runoff erosion since glacial times. Photo 1 on the opposite page shows the heavily vegetated north side of the gully where water from the site presently flows. There is no obvious path of flow on the slope or at the base of the gully. There is no flow of water in the gully when there is no rain. Photo 2 on the opposite page shows the end of S 148 Street with the diversion to force water to the north side of the street, and then into the south side of the gully and onto the Gadzuk property. The gully then conducts the combined runoff from the site and from S 148 Street southeast to 51 Avenue S where two 12 inch pipes intercept the runoff and conduct it under 51s Avenue S to the east side of the street and eventually to a drainage system along the west side of 1 -5. There is no evidence of erosion along the gully, or any erosion or overflow at the pipes, or erosion on the east side of 51 Avenue S. DESCRIPTION of EXISTING DRAINAGE CHARACTERISTICS The site is covered with weathered glacial till, described by the Soil Conservation Service (SCS) of the Department of Agriculture as Alderwood Soils. Alderwood Soils have a slow infiltration rate, therefore a large percentage of rainfall becomes runoff, especially after the soils have become saturated. The total area of the site is 51,920.2 sf, not including the north 175 feet of the driveway easement. The driveway easement is 3500 sf, of which 1750 sf will be paved. Runoff from the north 175 feet of the easement flows north to the drain ditch along S 146th Street. The additional flow from paving will be insignificant, since that portion of the easement is already used as a gravel driveway. 1LEMPEILLI FIGURE 4 RAINFALL INTENSITY in KING COUNTY Pore •are fasell 2 .2 Nernlendy Unease Pare d lets d 0 e Melees I(h is SNOHOMISH Duvall Carnelian 3,8 3ereanleh 3.6 ( 1 I (9 1 SEATTL Al, ea 100 YEAR PEAK 6 HOURS of 24 HOUR STORM Selhell — 2.� ICALI 0 COUNTY 10 MItIS 1 FIGURE 5 SCS TYPE 1A RAINFALL DISTRIBUTION _.._..__— .�_._......�..............,... �.. ....n.1,r.n,�,+nmwon.:ecn+.;rni rtSa•^^y::4�+,;!ae,;� oz ;. Project Number 2469 23 January, 2000 page 5 of 12 pages Figure 4 on the opposite page shows the rainfall intensity for a 100 year storm in King County. At Tukwila the total rainfall in 6 hours is 2 inches.The rainfall intensity shown in Figure 4 is for the peak 6 hours of a 24 hour storm. The peak 6 hours can be more accurate than a 24 hour rainfall because there could be two 2 year storms within the 24 hours that could total a 100 year storm. The runoff from the first 2 year storm could be gone by the time that the second storm occurs, therefore the total rainfall for two 2 year storms would not be near as damaging as one 100 year storm, even though the total rainfall for 24 hours is the same. Figure 5 shows the rainfall distribution over the 360 minute period of time. The pattern shows that the rainfall is normal up to the 100 minute mark, and then increases in intensity during the next 60 minutes, peaks for 20 minutes, then declines for the next 60 minutes, then continues at a normal rainfall. The actual pattern or series of patterns could be much different, but the 1A pattern will cause the greatest runoff at any period of time, which requires pipe design that will be at least conservative. The 6 hour storm is more accurate for small sites where the runoff from rainfall at an instant will have left the site in a matter of minutes. Rainfall patterns for greater periods of time will be more accurate for flood studies where distant storms will arrive at a site over a longer period of time. The SCS method used in this report calculates the runoff in very short periods of time called the duration of incremental rainfall (D), but to save space the rainfall and runoff are printed every 10 minutes. The total rainfall for each D of time is calculated and adjusted for soil type, vegetation or other cover, impervious surfaces, and saturation for the undeveloped site, and then again for the developed site. The runoff from the developed site will be more concentrated by intercepting and conducting through a piping system. The piping system will be designed to conduct the highest rate of runoff. The outlet will be designed to control runoff to prevent concentrated scouring. PROJECT NUMBER 2469 TRIAL NUMBER 1 BASIN B 10 1.950 0.0390 0.0390 0.0000 0.0000 0.0000 20 1.950 0.0390 0.0780 0.0000 0.0000 0.0000 30 1.950 0.0390 0.1170 0.0000 0.0000 0.0000 40 1.950 0.0390 0.1560 0.0012 0.0032 0.0013 50 1.950 0.0390 0.1950 0.0064 0.0070 0.0030 60 1.950 0.0390 0.2340 0.0152 0.0103 0.0043 70 1.950 0.0390 0.2730 0.0270 0.0131 0.0055 80 1.950 0.0390 0.3120 0.0413 0.0155 0.0065 90 1.950 0.0390 0.3510 0.0579 0.0176 0.0074 100 1.950 0.0390 0.3900 0.0764 0.0194 0.0082 110 2.600 0.0520 0.4420 0.1037 0.0286 0.0121 120 2.600 0.0520 0.4940 0.1336 0.0310 0.0130 130 3.100 0.0620 0.5560 0.1720 0.0398 0.0167 140 3.100 0.0620 0.6180 0.2130 0.0421 0.0177 150 4.550 0.0910 0.7090 0.2771 0.0660 0.0278 160 4.550 0.0910 0.8000 0.3449 0,0694 0.0292 170 9.050 0.1810 0.9810 0.4882 0.1477 0.0622 180 4.050 0.0810 1.1584 0.6366 0.0691 0.0291 180 THE MAXIMUM RATE OF RUNOFF IS 190 4.050 0.0810 1.2394 0.7063 0.0702 0.0296 200 2.600 0.0520 1.3194 0.7761 0.0457 0.0192 210 2.600 0.0520 1.3714 0.8219 0.0460 0.0194 220 2.600 0.0520 1.4234 0.8681 0.0463 0.0195 230 2.600 0.0520 1.4754 0.9146 0.0466 0.0196 240 1.950 0.0390 1.5269 0.9609 0.0352 0.0148 250 1.950 0.0390 1.5659 0.9962 0.0353 0.0149 260 1.950 0.0390 1.6049 1.0316 0.0354 0.0149 270 1.950 0.0390 1.6439 1.0671 0.0356 0.0150 280 1.950 0.0390 1.6829 1.1027 0.0357 0.0150 290 1.950 0.0390 1.7219 1,1385 0.0358 0.0151 300 1.950 0.0390 1.7609 1.1743 0.0359 0.0151 310 1.950 0.0390 1.7999 1.2103 0.0360 0.0152 320 1.950 0.0390 1.8389 1.2464 0.0361 0.0152 330 1.950 0.0390 1.8779 1.2825 0.0362 0.0153 340 1.950 0.0390 1.9169 1.3188 0.0363 0.0153 350 1.950 0.0390 1.9559 1.3551 0.0364 \0.0153 360 1.950 0.0390 1.9949 1.3916 0.0365 0.0154 TOTAL RUNOFF = 2,364 cf (FROM SUM OF Qr x D minutes x 60 sec /mini FIGURE 7 RAINFALL & RUNOFF CALCULATIONS for UNDEVELOPED LOT B NOTE: 'Qr' is calculated for each time increment equal to 'D', or 0.4 minutes; for convenience the following data is printed for those time increments equal to 28 x 'D', or 10 minutes, except for the maximum runoff rate, which is printed at the exact time that it occurs. (T) ( %) (% x R) (P) (Q) (IQ) (Qp) (Qr) ( +Qr) INCREMENTAL DEPTH OF DEPTH OF DEPTH OF DEPTH OF INCREMENTAL TOTAL ACCUMULATIVE TIME PERCENT INCREMENTAL ACCUMULATED ACCUMULATED INCREMENTAL PEAK RATE INCREMENTAL RUNOFF at INCREMENT RAINFALL RAINFALL RAINFALL RUNOFF RUNOFF RUNOFF RUNOFF BASIN OUTLET (min) (t) (in) (in) (in) (in) (cfs) (cfs) (cf) .0000 0 .0000 0 .0000 0 .0063 1 .0175 8 .0271 22 .0352 41 .0422 64 .0482 91 .0535 122 .0789 165 .0858 214 .1102 276 .1172 344 .1834 444 .1933 557 .4104 770 .4311 1,023 .4311 .1969 .1996 .1293 .1302 .1310 .1318 .0993 .0997 .1000 .1004 .1007 .1010 .1013 .1016 .1018 .1021 .1023 .1026 1,166 1,285 1,371 1,448 1,527 1,606 1,669 1,728 1,788 1,848 1,909 1,969 2,030 2,091 2,152 2,213 2,274 2,336 Project Number 2469 LOT B UNDEVELOPED 23 January, 2000 page 6 of 12 pages Runoff from Lot B sheet flows to the east and onto the adjacent east property where some is intercepted and conducted south to the gully, and some sheet flows past the house and eventually to the gully southeast of the property. The existing Lot B is covered with grass and bare ground. Figure 6 shows the runoff characteristics for the undeveloped Lot B. Figure 7 on the opposite page shows the 10 minute incremental and 2 hour total rainfall and runoff calculations. FIGURE 6 RAINFALL & RUNOFF CHARACTERISTICS for UNDEVELOPED LOT B A. BASIN DATA 1. THE NAME OF THE DRAINAGE BASIN IS B 2. THE DESCRIPTION OF B IS UNDEVELOPED LOT B 3. AREA OF BASIN 'B' IS 20,083 SF B. RAINFALL DATA 1. FREQUENCY OF THE DESIGN STORM IS 100 YEARS 2. TOTAL RAINFALL FOR A 100 YEAR STORM IS 2 INCHES IN 6 HOURS. 3. TYPE OF RAINFALL DISTRIBUTION FOR WESTERN WASHINGTON IS 1A C. RUNOFF DATA 1. SOIL CLASSIFICATION a. SOIL GROUP COVERING BASIN B IS ALDERWOOD b. HYDROLOGIC GROUP (SCS) IS C c. HYDROLOGIC GROUP (VISUAL) IS C 2. LAND USE LAND USE DESCRIPTION OF BASIN 'B' IS '75% GRASS COVER' 3. RUNOFF CURVE NUMBER (CN) a. (CN) FOR BASIN 'B' IS [ 86 ) b. (CN) IS ADJUSTED TO [ 94 ) FOR WET CONDITIONS 4. RUNOFF CHARACTERISTICS a. DETENTION POTENTIAL INDICATOR (S) IS [ 0.64) 5. RUNOFF CHARACTERISTICS ALONG LONGEST FLOW PATH a. TOTAL LENGTH of FLOW PATH IS [ 205 feet) b. TOTAL ELEVATION DROP of FLOW PATH is ( 8 feet) c. AVERAGE SLOPE of TOTAL FLOW PATH IS [ 3.9 %1 6. INCREMENTAL HYDROGRAPH CHARACTERISTICS a. LAG (L) = 1.6 minutes b. TIME OF CONCENTRATION (Tc) = 2.7 minutes c. DURATION OF INCREMENTAL RAINFALL (D) = 0.4 minutes d. TIME TO PEAK OF RUNOFF (Tp) = 1.8 minutes e. TINE FOR RUNOFF TO RECEDE (Tr) = 3.0 minutes REIVEPHILIE • PROJECT NUMBER 2469 TRIAL NUMBER 2 BASIN B FIGURE 9 RAINFALL & RUNOFF CALCULATIONS for DEVELOPED LOT B NOTE: 'Qr' is calculated for each time increment equal to 'D', or 0.3 minutes; for convenience the following data is printed for those time increments equal to 33 x 'D', or 10 minutes, except for the maximum runoff rate, which is printed at the exact time that it occurs. (T) ( %) (% x R) (P) (Q) (IQ) (Qp) (Qr) ( +Qr) INCREMENTAL DEPTH OF DEPTH OF DEPTH OF DEPTH OF INCREMENTAL TOTAL ACCUMULATIVE TIME PERCENT INCREMENTAL ACCUMULATED ACCUMULATED INCREMENTAL PEAK RATE INCREMENTAL RUNOFF at INCREMENT RAINFALL RAINFALL RAINFALL RUNOFF RUNOFF RUNOFF RUNOFF BASIN OUTLET (min) (t) (in) (in) (in) (in) (cfs) (cfs) (cf) 10 1.950 0.0390 20 1.950 0.0390 30 1.950 0.0390 40 1.950 0.0390 50 1.950 0.0390 60 1.950 0.0390 70 1.950 0.0390 80 1.950 0.0390 90 1.950 0.0390 100 2.600 0.0520 110 2.600 0.0520 120 3.100 0.0620 130 3.100 0.0620 140 4.550 0.0910 150 4.550 0.0910 160 4.550 0.0910 170 9.050 0.1810 180 9.050 0.1810 180 190 4.050 0.0810 200 4.050 0.0810 210 2.600 0.0520 220 2.600 0.0520 230 2.600 0.0520 240 2.600 0.0520 250 1.950 0.0390 260 1.950 0.0390 270 1.950 0.0390 280 1.950 0.0390 290 1.950 0.0390 300 1.950 0.0390 310 1.950 0.0390 320 1.950 0.0390 330 1.950 0.0390 340 1.950 0.0390 350 1.950 0.0390 360 1.950 0.0390 .0390 0.0000 0.0000 .0780 0.0000 0.0000 .1170 0.0025 0.0055 .1560 0.0108 0.0107 .1950 0.0236 0.0147 .2340 0.0400 0.0179 .2730 0.0593 0.0205 .3120 0.0810 0.0227 .3510 0.1047 0.0245 .3904 0.1303 0.0347 .4424 0.1662 0.0370 .4947 0.2044 0.0463 .5567 0.2518 0.0484 .6196 0.3018 0.0736 .7106 0.3769 0.0765 .8016 0.4545 0.0787 .9826 0.6145 0.1628 .1636 0.7796 0.1669 THE MAXIMUM RATE OF RUNO .2446 0.8546 0.0753 .3256 0.9302 0.0759 .3776 0.9790 0.0489 .4296 1.0280 0.0491 .4816 1.0772 0.0493 .5336 1.1266 0.0494 .5726 1.1637 0.0371 .6116 1.2008 0.0372 .6506 1.2381 0.0373 .6896 1.2754 0.0373 .1286 1.3128 0.0374 .7676 1.3502 0.0375 .8066 1.3877 0.0375 .8456 1.4252 0.0376 .8846 1.4628 0.0376 .9236 1.5005 0.0377 .9626 1.5382 0.0377 .0016 1.5759 0.0378 TOTAL RUNOFF = 2,627 cf (FROM SUM OF Qr x D minutes x 60 sec /min) .0000 .0000 .0023 .0044 .0061 .0074 .0085 .0094 .0101 .0144 .0153 .0191 .0200 .0304 .0316 .0326 .0674 .0691 F IS .0312 .0314 .0202 .0203 .0204 .0204 .0154 .0154 .0154 .0155 .0155 .0155 .0155 .0156 .0156 .0156 .0156 .0156 r...anMKytF'C;{{." .'wyrj�•JX� »e;�t.�yW,S> Project Number 2469 LOT B DEVELOPED 23 January, 2000 page 7 of 12 pages Lot B has an area of 20,083 sf. After development there will be impervious surfaces as follows: Driveway = 2500 sf Garage apron = 680 sf House roof = 2130 sf Garage roof = 1500 sf Total impervious = 6810 sf Lot B will be 34% impervious. The intercepted rainfall from impervious roof surfaces will be conducted south by pipe to the gully. Runoff from driveways will sheet flow through lawns to the east. Rainfall on lawn areas will combine with driveway runoff and will sheet flow to the east to be intercepted by a grass lined swale to biofiltrate any oil from the driveways. FIGURE 8 RAINFALL & RUNOFF CHARACTERISTICS for DEVELOPED LOT B A. BASIN DATA 1. THE NAME OF THE DRAINAGE BASIN IS B 2. THE DESCRIPTION OF BASIN 'B' IS DEVELOPED LOT B 3. AREA OF BASIN 'B' IS 20,083 SF B. RAINFALL DATA 1. FREQUENCY OF THE DESIGN STORM IS 100 YEARS 2. TOTAL RAINFALL FOR A 100 YEAR STORM IS 2 INCHES IN 6 HOURS. 3. TYPE OF RAINFALL DISTRIBUTION FOR WESTERN WASHINGTON IS 1A C. RUNOFF DATA 1. SOIL CLASSIFICATION a. SOIL GROUP COVERING BASIN B IS ALDERWOOD b. HYDROLOGIC GROUP (SCS) IS C c. HYDROLOGIC GROUP (VISUAL) IS C 2. LAND USE LAND USE DESCRIPTION OF BASIN 'B' IS 'ROOFS, DRIVEWAYS' 3. RUNOFF CURVE NUMBER (CN) a. (CN) FOR BASIN 'B' IS [ 90 ] b. (CN) IS ADJUSTED TO [ 96 ) FOR WET CONDITIONS 4. RUNOFF CHARACTERISTICS a. DETENTION POTENTIAL INDICATOR (S) IS [ 0.42] 5. RUNOFF CHARACTERISTICS ALONG LONGEST FLOW PATH a. TOTAL LENGTH of FLOW PATH IS [ 190 feet] b. TOTAL ELEVATION DROP of FLOW PATH is [ 8 feet] c. AVERAGE SLOPE of TOTAL FLOW PATH IS [ 4.2 8] 6. INCREMENTAL HYDROGRAPH CHARACTERISTICS a. LAG (L) = 1.4 minutes b. TIME OF CONCENTRATION (Tc) = 2.3 minutes c. DURATION OF INCREMENTAL RAINFALL (D) = 0.3 minutes d. TIME TO PEAK OF RUNOFF (Tp) = 1.5 minutes e. TIME FOR RUNOFF TO RECEDE (Tr) 2.6 minutes NEMPTEMLI PROJECT NUMBER 2469 TRIAL NUMBER 3 BASIN C NOTE: (T) (I) (I x R) (P) INCREMENTAL DEPTH OF DEPTH OF TIME PERCENT INCREMENTAL ACCUMULATED INCREMENT RAINFALL RAINFALL RAINFALL (min) (%) (in) (in) 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 2.600 2.600 3.100 3.100 4.550 4.550 9.050 9.050 4.050 4.050 2.600 2.600 2.600 2.600 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 1.950 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0520 .0520 .0620 .0620 .0910 .0910 .1810 .1810 .0810 .0810 .0520 .0520 .0520 .0520 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 .0390 1.2437 1.3242 1.3762 1.4282 1.4802 1.5320 1.5710 1.6100 1.6490 1.6880 1.7270 1.7660 1.8050 1.8440 1.8830 1.9220 1.9610 2.0000 FIGURE 11 RAINFALL & RUNOFF CALCULATIONS for UNDEVELOPED LOT C 'Qr' is calculated for each time increment equal to 'D', or 0.2 minutes; for convenience the following data is printed for those time increments equal to 59 x 'D', or 10 minutes, except for the maximum runoff rate, which is printed at the exact time that it occurs. (Q) DEPTH OF ACCUMULATED RUNOFF (in) (IQ) (Qp) (Qr) DEPTH OF INCREMENTAL TOTAL INCREMENTAL PEAK RATE INCREMENTAL RUNOFF RUNOFF RUNOFF (in) (cfs) (cfs) 0.0390 0.0000 .0000 0.0780 0.0000 .0000 0.1170 0.0000 .0000 0.1560 0.0000 .0000 0.1950 0.0005 .0018 0.2340 0.0039 .0049 0.2730 0.0101 .0075 0.3120 0.0189 .0099 0.3510 0.0300 .0121 0.3902 0.0431 .0186 0.4422 0.0633 .0216 0.4944 0.0863 .0289 0.5564 0.1168 .0321 0.6189 0.1506 .0511 0.7099 0.2044 .0561 0.0371 0.8024 0.2637 .1199 0.0793 0.9834 0.3903 .1324 0.0875 1.1627 0.5261 .0633 0.0418 THE MAXIMUM RATE OF RUNOFF IS 0.5901 0.6551 0.6977 0.7408 0.7843 0.8280 0.8611 0.8945 0.9280 0.9617 0.9956 1.0297 1.0639 1.0983 1.1328 1.1674 1.2021 1.2370 .0647 0.0428 .0424 0.0280 .0428 0.0283 .0433 0.0286 .0437 .0331 .0333 .0335 .0336 .0338 .0340 .0341 .0343 .0344 .0346 .0347 .0348 .0349 TOTAL RUNOFF = 3,289 cf (FROM SUM OF Qr x D minutes x 60 sec/min) 0.0000 0.0000 0.0000 0.0000 0.0012 0.0032 0.0050 0.0066 0.0080 0.0123 0.0143 0.0191 0.0212 0.0338 0.0289 0.0219 0.0220 0.0221 0.0222 0.0224 0.0225 0.0226 0.0227 0.0228 0.0229 0.0229 0.0230 0.0231 _..._.... �... v... m. roa.i•!1'AV75'>strNCMxc1.4e�.r =r .wr. +. Project Number 2469 LOT C UNDEVELOPED 23 January, 2000 page 8 of 12 pages Lot C is covered with trees, brush, and heavy leaf cover as shown in Photo 1 on page 4. The gully at the northeast corner of the lot appears to have been excavated in the past. The excavation removed some of the upper looser soils to expose the underlying hard and impervious glacial till. Runoff from this site does not cause erosion to the base of the gully. In their report dated 10 June 1999 GeoTech Consultants observed that the southwest corner of the gully had been filled, and that runoff from the nursery was causing some erosion. There might also be some erosion from the runoff from S 148 Street. The southwest slope was apparently created by placing of fill many years ago, and has remained stable through earthquakes and 100 year storms. Any future instability would not minimize the function of the gully as a valuable conductor of runoff. FIGURE 10 RAINFALL & RUNOFF CHARACTERISTICS for UNDEVELOPED LOT C A. BASIN DATA 1. THE NAME OF THE DRAINAGE BASIN IS C 2. THE DESCRIPTION OF BASIN 'C' IS UNDEVELOPED LOT C 3. AREA OF BASIN 'C' IS 31,837 SF B. RAINFALL DATA 1. FREQUENCY OF THE DESIGN STORM IS 100 YEARS 2. TOTAL RAINFALL FOR A 100 YEAR STORM IS 2 INCHES IN 6 HOURS. 3. TYPE OF RAINFALL DISTRIBUTION FOR WESTERN WASHINGTON IS 1A C. RUNOFF DATA 1. SOIL CLASSIFICATION a. SOIL GROUP COVERING BASIN C IS ALDERWOOD b. HYDROLOGIC GROUP (SCS) IS C c. HYDROLOGIC GROUP (VISUAL) IS C 2. LAND USE LAND USE DESCRIPTION OF BASIN 'C' IS 'YOUNG FOREST' 3. RUNOFF CURVE NUMBER (CN) a. (CM) FOR BASIN 'C' IS [ 81 ] b. (CM) IS ADJUSTED TO [ 92 ] FOR WET CONDITIONS 4. RUNOFF CHARACTERISTICS a. DETENTION POTENTIAL INDICATOR (S) IS [ 0.87] 5. RUNOFF CHARACTERISTICS ALONG LONGEST FLOW PATH a. TOTAL LENGTH of FLOW PATH IS [ 160 feet] b. TOTAL ELEVATION DROP of FLOW PATH is [ 22 feet] c. AVERAGE SLOPE of TOTAL FLOW PATH IS [13.8 11 6. INCREMENTAL HYDROGRAPH CHARACTERISTICS a. LAG (L) = 0.8 minutes b. TIME OF CONCENTRATION (Tc) = 1.3 minutes c. DURATION OF INCREMENTAL RAINFALL (D) = 0.2 minutes d. TIME TO PEAK OF RUNOFF (Tp) = 0.9 minutes e. TIME FOR RUNOFF TO RECEDE (Tr) = 1.4 minutes rte' ' r'EIZu FIGURE 13 RAINFALL & RUNOFF CALCULATIONS for DEVELOPED LOT C PROJECT NUMBER 2469 TRIAL NUMBER 4 BASIN C NOTE: 'Qr' is calculated for each time increment equal to 'D', or 0.1 minutes; for convenience the following data is printed for those time increments equal to 121 x 'D', or 10 minutes, except for the maximum runoff rate, which is printed at the exact time that it occurs. (T) (I) (1 x R) (P) (Q) (IQ) (Qp) (Qr) ( +Qr) INCREMENTAL DEPTH OF DEPTH OF DEPTH OF DEPTH OF INCREMENTAL TOTAL ACCUMULATIVE TIME PERCENT INCREMENTAL ACCUMULATED ACCUMULATED INCREMENTAL PEAK RATE INCREMENTAL RUNOFF at INCREMENT RAINFALL RAINFALL RAINFALL RUNOFF RUNOFF RUNOFF RUNOFF BASIN OUTLET (min) (I) (in) (in) (in) (in) (cfs) (cfs) (cf) 10 1.950 0.0390 0.0390 0.0000 0.0000 0.0000 0.0000 0 20 1.950 0.0390 0.0780 0.0000 0.0000 0.0000 0.0000 0 30 1.950 0.0390 0.1170 0.0003 0.0017 0.0011 0.0061 0 40 1.950 0.0390 0.1560 0.0045 0.0065 0.0043 0.0279 11 50 1.950 0.0390 0.1950 0.0131 0.0105 0.0070 0.0456 33 60 1.950 0.0390 0.2340 0.0253 0.0138 0.0091 0.0603 65 70 1.950 0.0390 0.2730 0.0405 0.0166 0.0109 0.0725 105 80 1.950 0.0390 0.3120 0.0583 0.0189 0.0125 0.0829 152 90 1.950 0.0390 0.3510 0.0782 0.0209 0.0138 0.0917 204 100 1.950 0.0390 0.3900 0.1000 0.0226 0.0149 0.0993 262 110 2.600 0.0520 0.4420 0.1314 0.0327 0.0216 0.1436 344 120 2.600 0.0520 0.4940 0.1651 0.0348 0.0230 0.1531 433 130 3.100 0.0620 0.5560 0.2079 0.0440 0.0291 0.1937 545 140 3.100 0.0620 0.6180 0.2530 0.0461 0.0305 0.2030 664 150 4.550 0.0910 0.7090 0.3226 0.0712 0.0471 0.3138 845 160 4.550 0.0910 0.8000 0.3953 0.0741 0.0490 0.3265 1,037 170 9.050 0.1810 0.9810 0.5470 0.1555 0.1027 0.6848 1,428 180 9.050 0.1810 1.1620 0.7054 0.1610 0.1064 0.7095 1,841 180 THE MAXIMUM RATE OF RUNOFF IS 0.7097 190 4.050 0.0810 1.2430 0.7779 0.0729 0.0482 0.3216 2,051 200 4.050 0.0810 1.3240 0.8512 0.0736 0.0487 0.3249 2,245 210 2.600 0.0520 1.3760 0.8986 0.0475 0.0314 0.2098 2,374 220 2.600 0.0520 1.4280 0.9462 0.0478 0.0316 0.2109 2,500 230 2.600 0.0520 1.4800 0.9941 0.0480 0.0317 0.2119 2,627 240 2.600 0.0520 1.5320 1.0423 0.0482 0.0319 0.2128 2,754 250 1.950 0.0390 1.5710 1.0785 0.0363 0.0240 0.1601 2,852 260 1.950 0.0390 1.6100 1.1148 0.0364 0,0240 0.1606 2,948 270 1.950 0.0390 1.6490 1.1513 0.0365 0.0241 0.1610 3,044 280 1.950 0.0390 1.6880 1.1878 0.0366 0.0242 0.1614 3,141 290 1.950 0.0390 1.7270 1.2244 0.0367 0.0242 0.1618 3,238 300 1.950 0.0390 1.7660 1.2611 0.0367 0.0243 0.1622 3,335 310 1.950 0.0390 1.8050 1.2979 0.0368 0.0243 0.1625 3,433 320 1.950 0.0390 1.8440 1.3348 0.0369 0.0244 0.1629 3,530 330 1.950 0.0390 1.8830 1.3717 0.0310 0.0244 0.1632 3,628 340 1.950 0.0390 1.9220 1.4081 0.0370 0.0245 0.1635 3,726 350 1.950 0.0390 1.9611 1.4458 0.0311 0.0245 0.1638 3,824 360 1.950 0.0390 2.0001 1.4829 0.0372 0.0246 0.1640 3,923 TOTAL RUNOFF = 3,934 cf (FROM SUM OF Qr x D minutes x 60 sec /min] Project Number 2469 23 January, 2000 page 9 of 12 pages LOT C DEVELOPED Any future development will be at the northwest corner of the lot. The driveway ends at the south end of Lot B, therefore there will be little or no paving on the lot. HEMPHILL estimates that the impervious area of any building will be limited to approximately 2000 sf because of the limited area available. The rest of the lot will remain relatively unchanged. Runoff from the roof will be conducted to the base of the gully and dispersed onto a rock base. ' FIGURE 12 RAINFALL & RUNOFF CHARACTERISTICS for DEVELOPED LOT C A. BASIN DATA 1. THE NAME OF THE DRAINAGE BASIN IS C 2. THE DESCRIPTION OF BASIN 'C' IS DEVELOPED LOT C 3. AREA OF BASIN 'C' IS 31,837 SF • B. RAINFALL DATA 1. FREQUENCY OF THE DESIGN STORM IS 100 YEARS ' 2. TOTAL RAINFALL FOR A 100 YEAR STORM IS 2 INCHES IN 6 HOURS. 3. TYPE OF RAINFALL DISTRIBUTION FOR WESTERN WASHINGTON IS 1A . r , rrr L MPtULL Project Number 2469 PIPE DESIGN 23 January, 2000 page 10 of 12 pages For Lot B Figure 7 on page 6 opposite shows that the maximum rate of runoff from the existing undeveloped Lot B is 0.4311 cfs. Figure 9 on page 7 opposite shows a maximum rate of runoff from the proposed developed Lot B to be 0.4599 cfs. The development of Lot B will increase the outflow by .0288 cfs. The roof areas will be conducted directly south to the gully by pipe. The lawn and driveway areas will sheet flow to a grass lined swale along the east property line, and then will be conducted south to the gully. Less than half of the total runoff will be conducted by pipe placed at a maximum slope of 2 feet per 100 feet (.02 ft/ft). As shown in Figure 14, a 4 inch smooth plastic pipe can conduct 0.32 cfs at less than critical flow, which would not occur at that slope. After entering Lot C the slope of the pipe will increase to 0.33 Mt which can conduct 1.26 cfs. For Lot C The maximum runoff from undeveloped Lot C is 0.6209 cfs as shown in Figure 11 on page 8 opposite, and after development the runoff is 0.7097 cfs, as shown in Figure 13 on page 9 opposite. That is an increase of .0888 cfs. The pipe from the assumed location of a future house would slope 0.40 ft/ft, therefore a 4 inch smooth plastic pipe could easily carry the flow from the house roofs with a flow of 1.40 cfs from the chart on Figure 14. Critical flow would reduce the capacity to approximately 1.0 cfs. FIGURE 14 FLOW THROUGH SMOOTH PLASTIC PIPE FRICTION (n) is .011 MAXIMUM MAXIMUM DIAMETER SLOPE VELOCITY VOLUME of PIPE of PIPE of FLOW of FLOW (in) (ft /ft) (fps) (cfs) 4 0.020 3.64 0.32 4 0.140 9.63 0.84 4 0.260 13.13 1.14 4 0.380 15.87 1.38 4 0.500 18.20 1.59 6 0.020 4.77 0.94 6 0.140 12.62 2.48 6 0.260 17.20 3.38 6 0.380 20.80 4.08 6 0.500 23.86 4.68 Project Number 2469 FLOW THRU GRASS LINED SWALE 23 January, 2000 page 11 of 12 pages The grass lined swale along the east side of Lot B is designed to be circular, and wide enough to run a mower or a trimmer. Figure 15 shows optional shapes for swales and the flow capacities. The slope of the swale will be 2 feet drop in elevation over a distance of 150 feet = 0.013 ft/ft. HEMPHILL recommends the swale with a width of 2 ft and 0.2 ft depth of water. FIGURE 15 DESIGN of GRASS LINED SWALE WIDTH DEPTH LENGTH RADIUS ANGLE SLOPE at AREA NETTED HYDRAULIC SLOPE TRENCH CAPACITY of of of of of TRENCH of PERIMETER RADIUS of ROUGHNESS of TRENCH WATER ARC ARC ARC ENTRANCE SECTION TRENCH COEFF DITCH ft ft ft ft deg 1V: _E sf ft ft /ft (o) cfs 1.0 0.2 1.1 0.7 87.2 1.1 0.1 1.1 '0.1 0.01 .027 0.2 1.0 0.4 1.4 0.5 154.6 0.2 0.3 1.4 0.2 0.01 .027 0.7 1.0 0.6 1.8 0.5 200.8 -0.2 0.5 1.8 0.3 0.01 .027 1.4 1.0 0.8 2.3 0.6 232.0 -0.5 0.7 2.3 0.3 0.01 .027 2.3 1.0 1.0 2.8 0.6 253.7 -0.7 1.1 2.8 0.4 0.01 .027 3.5 2.0 0.2 2.1 2.6 45.2 2.4 0.3 2.1 0.1 0.01 .027 0.4 2.0 0.4 2.2 1.5 87.2 1.1 0.5 2.2 0.2 0.01 .027 1.4 2.0 0.6 2.4 1.1 123.9 0.5 0.9 2.4 0.3 0.01 .027 2.7 2.0 0.8 2.8 1.0 154.6 0.2 1.2 2.8 0.4 0.01 .027 4.3 2.0 1.0 3.1 1.0 180.0 0.0 1.6 3.1 0.5 0.01 .027 6.3 3.0 0.2 3.0 5.7 30.4 3.7 0.4 3.0 0.1 0.01 .027 0.7 3.0 0.4 3.1 3.0 59.7 1.7 0.8 3.1 0.3 0.01 .027 2.1 3.0 0.6 3.3 2.2 87.2 1.1 1.2 3.3 0.4 0.01 .027 4.1 3.0 0.8 3.5 1.8 112.3 0.7 1.7 3.5 0.5 0.01 .027 6.5 3.0 1.0 3.8 1.6 134.8 0.4 2.2 3.8 0.6 0.01 .027 9.4 4.0 0.2 4.0 10.1 22.8 5.0 0.5 4.0 0.1 0.01 .027 0.9 4.0 0.4 4.1 5.2 45.2 2.4 1.1 4.1 0.3 0.01 .027 2.8 4.0 0.6 4.2 3.6 66.8 1.5 1.6 4.2 0.4 0.01 .027 5.4 4.0 0.8 4.4 2.9 87.2 1.1 2.2 4.4 0.5 0.01 .027 8.8 4.0 1.0 4.6 2.5 106.3 0.8 2.8 4.6 0.6 0.01 .027 12.7 5.0 0.2 5.0 15.7 18.3 6.2 0.6 5.0 0.1 0.01 .027 1.1 5.0 0.4 5.1 8.0 36.4 3.0 1.3 5.1 0.3 0.01 .027 3.5 5.0 0.6 5.2 5.5 54.0 2.0 2.0 5.2 0.4 0.01 .027 6.8 5.0 0.8 5.3 4.3 71.0 1.4 2.7 5.3 0.5 0.01 .027 11.0 5.0 1.0 5.5 3.6 87.2 1.1 3.4 5.5 0.6 0.01 .027 15.9 6.0 0.2 6.0 22.6 15.3 7.5 0.8 6.0 0.1 0.01 .027 1.2 6.0 0.4 6.1 11.5 30.4 3.7 1.6 6.1 0.3 0.01 .027 4.1 6.0 0.6 6.2 7.8 45.2 2.4 2.4 6.2 0.4 0.01 .027 8.2 6.0 0.8 6.3 6.0 59.7 1.7 3.2 6.3 0.5 0.01 .027 13.2 6.0 1.0 6.4 5.0 73.7 1.3 4.1 6.4 0.6 0.01 .027 19.1 EZENIEPEEETAL Project Number 2469 23 January, 2000 HEMPHILL concludes that there are no problems upstream or downstream from the site, and that increased runoff from development of Lots B and C is minimal and will not increase erosion, pollution, or flooding. Runoff from both sites will follow the existing outlets; the city drain ditch at S 146 Street for the north portion of the driveway, and the natural drainage gully for Lots B and C. Dale C. Hemphill P.E. iJ Registered Engineer No. 14777 State of Washington EXPIRES 17 FEBRUARY 2000 1111/311103111105ra Project Name: Brian Gadzuk 4813 5. 146 Street File #: l'.1 CJ 4:'I Date: 04.28.00 Reviewer: L. Jill Mosqu . . Q /projects /sfr brian gadzuk /comment #3 04.28.00 Comment Letter #3 D99 -0327 House and Garage D99 -0335 Garage MI99 -0153 Infiltration Trench CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS The City Of Tukwila Public Works Department has the following comments regarding your applications for the above permits. Please contact Jill Mosqueda at (206) 433 -0179, if you have any questions regarding the following comments. Access 1. Please provide a profile along the centerline and also a cross - section for the easement access road. Show the full length of the access from 4815 to 5. 146 2. For the 4" PVC SDR35 pipe which runs from the garage to the house, please provide the elevations at the house and at the garage. Please clarify whether the slope of this pipe is .02% or 0.2 %. Surface Water Mike Cusick, Associate Development Engineer, performed a supporting review of the storm drainage report. Following Mike's review he met with Dale Hemphill regarding the submitted storm drainage report and plan. The following comments and corrections must be addressed: 1. The 100 -year, 6 -hour, Soil Conservation Service methodology of peak runoff flows used by Mr. Hemphill does not meet the 1998 King County Surface Water Design Manual requirements. King County's Runoff Time Series is the approved method. 2. Mr. Hemphill understated the impervious area for the project. The impervious area calculations must include the access road. The actual impervious area in the developed !iRX'd4%:9:UF:'`i! ?xihY. S�'7r:n.nl:-ra�u -xr. Page 1 4.r14.: .'a sar..pa'Gm41, +.s ... x7z ic.mii:;74fA X—e. iG.irdl�ild4ar#nrLzkwiNmini: rte reze&m.vs attt#. itii'r+:;Cxo tstsurv.ttrcrX,tuKtlAl•S grfr.'. rAvi fll ' ,R`Jf :• . condition is about 13,000 square feet. The driveway is in the same drainage sub -basin as the rest of the site. The flows converge within a quarter mile of the site. The 1998 KC Surface Water Design Manual, Section 1.2, Onsite Runoff Bypass, states: Proposed project runoff may bypass proposed onsite flow control facilities provided that all the following are true: 1. Runoff from both the bypass area and the flow control facility converges within a quarter -mile downstream of the project site discharge point AND 2. The flow control facility is designed to compensate for the uncontrolled bypass area such that the net effect at the point of convergence downstream is the same with or without bypass AND 3. The 100 -year peak discharge from the bypass area will not exceed 0.4 csf AND 4. Runoff from the bypass area will not create a significant adverse impact to downstream drainage systems to properties, AND 5. Water quality requirements applicable to the bypass area are met. If the driveway runoff cannot be detained, the allowable release rate from the detention system needs to be throttled back to account for the undetained runoff leaving the project from the driveway in parcel "A ". 3. Mr. Hemphill must comply with the requirements of the 1998 King County Surface Water Design Manual. The information provided by Mr. Hemphill'does not meet the current requirements needed to approve his application. Please review the project letter dated, February 4, 2000 which was sent to you by Jill Mosqueda. Q /projects /sfr brian gadzuk /comment #3 04.28,00 Page 2 .! tt M71NT .xi itnM9M:t!'Vkf.:!u:f4kk': '.'. CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS Project Name: Brian Gadzuk 4813 5. 146 Street File #: Date: 02.04.99 Reviewer: L. Jill Mosqueda,, ' � ( The City Of Tukwila Public Works Department has the following comments regarding your applications for the above permits. Please contact Jill Mosqueda at (206) 433 -0179, if you have any questions regarding the following comments. Access 1. Please provide a profile for the easement access road. Show the full length of the access from 4815 to 5. 146 Surface Water 1. The City follows the 1998 King County Surface Water Design Manual (KCSWDM) guidelines. The drainage evaluation you provided is not per the 1998 manual. Please provide a full drainage review and storm drainage design per the 1998 manual. 2. If you installed the drainage trench permit under MI99 -0153, please show the footprint of the trench, drawn to scale. If you do not intend to install the trench, please let me know, so I can pass that information along to the inspector. Q. /pro jects /sfr brian gadzuk/comment letter #2 099 -0327 House and Garage D99 -0335 Garage MI99 -0153 Infiltration Trench Page 2 02.04.2000 b99 -0327 b99 -0335 MI99 -0153 Land Altering 1. Show stockpile areas and clearing limits. Clearing limits means: the boundaries of ground disturbance. If the whole site will be disturbed, please show that as clearing limits on the plans. 2. Provide an erosion prevention and sediment control plan per KCSWDM. The plan must include clearing limits, temporary and permanent stabilization, length of time the ground can be left open before temporary or permanent measures must be installed. Q: /projects /sfr brian gadzuk/comment letter #2 File #: Date: Project Name: Brian Gadzuk 4813 5. 146 Street CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS D99 -0327 House and Garage D99 -0335 Garage MI99 -0153 Infiltration Trench • 09/28/1999 Reviewer: L. Jill Mosqueda, P. The City Of Tukwila Public Works Department has the following comments regarding your applications for the above permits. Please contact Jill Mosqueda at (206) 433 -0179, if you have any questions regarding the following comments. General 1. The garage shown on the plans is being permitted on both of the "D" permits listed above. Please indicate which permit number you wish to use for the garage. 2. I now have three site plans for 4813. Please ensure that the dimensions match between all three permit applications. For instance, the square footage of the house does not match between the three permit applications. Access 1. Please provide a profile for the easement access road. Show the full length of the access from 4815 to S. 146 2. On the plans, please show dimensions for the access, including the hammerhead. Include the lengths, widths, and radii. �z-.. bA4 -D33‘... Page 2 09/28/99 099 -0327 D99 -0335 M199 -0153 :3. Instead of showing a crown section for the access road, please slope the section so that all runoff from the access drains to the east. 4. On the plans, please show drainage for the driveway and hammerhead. The water from this added impervious surface should be part of the surface water design. Surface Water 1. The City follows the 1998 King County Surface Water Design Manual (KCSWDM) guidelines. Your plan shows addition of >12000 square feet of impervious surface for 4813. A full drainage review is required for sites adding over 10,000 square feet of impervious surface. Please provide all elements of a full drainage review which apply to this site. I enclosed pages 1 -8 and 1 -13 from the KCSWDM, which outline full drainage review requirements. The drainage plan for this site must be designed and stamped by a licensed civil engineer, who can help you determine which elements of the full drainage review your site must meet. 2. Please clarify the actual location of the drainage trench. Please provide the actual expected dimensions based on the actual expected square footage of the house and garage. On the plans, please show the footprint of the trench, drawn to scale 3. A trench drain was permitted under MI99 -0153. You need to supply revised plans and a request for revision for any changes to those approved plans. Examples of changes include changing from a trench to a pit and changing the location. Since the approved design was stamped by an engineer, an engineer will need to stamp and sign the changes. Land Altering 1. Please explain how you plan to dispose of the Cut material. On the application for the house and garage, the cut quantity is 100 cubic yards. On the application for the garage is 30 cubic yards. Is the cut equal to 70 cubic yards for the house and 30 cubic yards for the garage? 2. Show stockpile areas and clearing limits. Clearing limits means: the boundaries of ground disturbance. If the whole site will be disturbed, please show that as clearing limits on the plans. Page 3 .09/28/99 b99-0327 099-0335 MI99-0153 3 . Provide an erosion prevention and sediment control plan per KCSWbM. The plan must include clearing ,limits, temporary and permanent stabilization, length of time the ground can be left open before temporary or permanent measures must be installed. -f�: :.n +•�,t �.r n',J:, ,•� .. {ha�q .�t'• '• «.p a :r ." ?;F i °S;. % • �.'�N K ..�t.�< ' t.'. ,�:5 -,.. ., .....,. •..: .. ,., ?� >;;S? ^d ?CrJ.+.�C:,.,.: ..�i�'.�.. ^. (Jiti1`iY.'t.. r!: .. tt t.;. e. ,, .s. �s ..... ,t:.:..x .t.s. -. .t ,......, ,• ^s.. : ?�.•:t. .. i. .... i. l! vc? h; 2Y; d�,.".°. ai'> t.. e7i'. dt � 1'% �Y��i ";''S:??;�:�••: ?�riS';? " r*,: iii ACTIVITY NUMBER: D99 - 0335 DATE: 5 -22 -2000 PROJECT NAME: GADZUK DETACHED GARAGE SITE ADDRESS: 4813 S 146 ST SUITE # Original Plan Submittal Response to Incomplete Letter # XX Response to Correction Letter # 1 Revision # After Permit Is Issued DEPARTMENTS: Building Division P bli W ks Complete TUES /THURS ROUTING: Please Route 7i Structural Review Required CORRECTION DETERMINATION: Approved n Approved with Conditions REVIEWER'S INITIALS: \PRROUT C.DOC 5/99 PERMIT COORD COPY PLAN REVIEW /ROUTING SLIP Fire Prevention Structural n Planning Division u Permit Coordinator C No further Review Required Not Approved (attach comments) n ■ DETERMINATION OF COMPLETENESS: (Tues., Thurs.) DUE DATE: 5-23 -2000 Incomplete n Not Applicable n Comments: n REVIEWER'S INITIALS: DATE: APPROVALS OR CORRECTIONS: (ten days) DUE DATE: 6 -20 -2000 Approved I I Approved with Conditions Not Approved (attach comments) REVIEWER'S INITIALS: DATE: DUE DATE DATE: ACTIVITY NUMBER: D99 -0335 DATE: 4 -17 -2000 PROJECT NAME: GADZUK DETACHED GARAGE SITE ADDRESS: 4813 S 146 ST Original Plan Submittal Response to Incomplete Letter # XX Response to Correction Letter # 2 Revision # _ After Permit Is Issued DEPARTMENTS: Building Division P I' k� s _ W .00 Structural "1 "1 a�fill0 DETERMINATION OF COMPLETENESS: (Tues., Thurs.) Complete Comments: TUES /THURS ROUTI G: Please Route Structural Review Required REVIEWER'S INITIALS: DUE DATE 5-9-2000 Approved n Approved with Conditions I 1 Not Approved (attach comments) PO REVIEWER'S INITJALS• • DA tryyyte a APPROVALS OR CORRECTIONS: (ten days) CORRECTION DETERMINATION: DUE DATE Approved _ Approved with Conditions Not Approved (attach comments) n REVIEWER'S INITIALS: DATE: V'RROUIC.DOC 5/99 �1. PERMIT COORD COPY PLAN REVIEW /ROUTING SLIP n Fire Prevention Incomplete n Planning Division n .,. i rv� y ;`""i'ltif7ev�; �. �!.c.;r.;'�Srrvbj�:tC,"�" "y, :i,"•c^;5: +`;��:` Permit Coordinator DUE DATE:4 -18 -2000 Not Applicable No further Review Required • U DATE: ACTIVITY NUMBER: D99 - 0335 PROJECT NAME: GADZUK DETACHED GARAGE Original Plan Submittal DATE: 1 -26 -2000 Response to Incomplete Letter # XX Response to Correction Letter # 1 Revision # _ After Permit Is Issued DEPARTMENTS: Building Division Public Works DETERMINATION OF COMPLETENESS: (Tues., Thurs.) Complete Approved \PKROUILDOC 5/99 PERMIT COORD COPY PLAN REVIEW /ROUTING SLIP CORRECTION DETERMINATION: Fire Prevention n Planning Division Structural Permit Coordinator DUE DATE: 1-27 -2000 Incomplete n Not Applicable n Comments: TUES /THURS ROUTING: Please Route Structural Review Required n No further Review Required n REVIEWER'S INITIALS: DATE: APPROVALS OR CORRECTIONS: (ten clays) DUE DATE 2-24-2000 Approved Approved with Conditions Not Approved (attach comments) I""" NI -42 taftfikba 2 - - 1 - W t REVIEWER'S INITIALS: DATE: DUE DATE Approved with Conditions Li Not Approved (attach comments) F1 REVIEWER'S INITIALS: DATE: ACTIVITY NUMBER: D99 -0 :90 DATE: 9 -14 -99 PROJECT NAME: BRIAN GADZUK- ACCESSORY GARAGE XX Original Plan Submittal Response to Incomplete Letter # _ Response to Correction Letter # _ Revision # _ After Permit Is Issued DEPARTMENTS: Bu) Division 1 Public rk � 0 1- -1q DETERMINATION OF COMPLETENESS: (Tues., Thurs.) Complete 14 Incomplete n Not Applicable Comments: TUES /THURS ROUTING: Please Route Structural Review Required ri No further Review Required REVIEWER'S INITIALS: DATE: APPROVALS OR CORRECTIONS: (ten days) Approved Fl Approved with Conditions t Mv i( MaiQ REVIEWE I �LS: CORRECTION DETERMINATION: Approved n Approved with Conditions WRROUI [.000 5/99 Per rn\ 1- bora . PLAN REVIEW /ROUTINCSLIP �� Fire Prevention Structural Planning g Division 1 -1 Permit Coordinator DUE DATE: 9 -16 -99 DUE DATE Not Approved (attach comments) DUE DATE 10 -14 -99 Not Approved (attach comments) k- fi t/" DATE: REVIEWER'S INITIALS: DATE: City of Tukwila. • John W. Rants, Mayor Department of Community Development Steve Lancaster, Director Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 11 /2 V 22 j Da ❑ Response to Incomplete Letter # ❑ Response to Correction Letter # ❑ Revision # after Permit is Issued Plan Check/Permit Number: 1hci? - o.�3s Project Name: &MME 6i91�Z U k G /W f�GG = Project Address: y,/J S / '4 Contact Person: / TL 64D 2 V k Phone Number: 2 O6 - S2S" - 2 S08 Summary of Revision: /, /) k) /�Rlg /AJ 6 9Li91/4) 2 , e,,cr/ /s &,v 6 - *9-0 i Pzo •v 3 - /007 P.4r6 Wail' /9- cctss RoAD Sic7tort.i 5 19,70f/46 Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision Received at the City of Tukwila Permit Center by:'1Ak R \--jagb,FIVED Entered in Sierra on 00 MAY 2 2 2000 TUKWILA PUBLIC WORKS 06/29/99 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 4313670 • Fax (206) 4313665 Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: /pt ; / / 7 / c Plan Check/Permit Number: ❑ Response to Incomplete Letter # j Response to Correction Letter # 2. 0 Revision # after Permit is Issued City of Tukwila Department of Community Development Steve Lancaster, Director Project Name: i3 t/ a h Ga c12- uk Project Address: 1/R/3 S 60 14 / 4I 51 Contact Person: Pe/ev G'a.d2o/C. John W. Rants, Mayor RECEIVED CITY OF TUKWILA t PERMIT CENTER O iI Phone Number: 2 06 - S2S = 25'J5 Summary of Revision: A cc ess f , 0 4 S Ca-cc 1 J , r (A) Ct TG ✓ // -�- '// / / �evis F. C Repo CF,// (La., :a /p P�t:�i c pew' 3 17 2. Pe✓mit e, 9y.-0/3-3 ca cam. lec/ a-N of Nice/43 y Pew" SVf , Ste Foci✓ c.DreS aT d ra 1 hc4.1e u 71 p le.as ( M e. u,sia ) Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision Received at the City of Tukwila Permit Center by: [Entered in Sierra on U ' 06/29/99 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • (206) 431.3670 • Fax (206) 431.3665 City of Tukwila Department of Community Development - Permit Center 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 (206)431 -3670 4Io al V;iJT��ri °i 4f �. +eG9ei "-X 7141Z , ` ,irrl++btFTr7?Y4iikiiilMt• Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: ' D10" Plan Check /Permit Number: D99 -0335 Response to Incomplete Letter # ® Response to Correction Letter # 1 E] Revision # after Permit is Issued Project Name: GADZUK — DETACHED GARAGE Project Address: 4813 South 146 Street Contact Person: Brian Gadzuk Phone Number: Summary of Revision: SITE n E V /Eh✓ (c)r IVA/ iF ) 2, REVISED UTILITY DnA(ONa 3, GRADI NG PL191.J '1, DR19 /AlAG4? PL P, 3 REVISED S /TE PI- A) G, Da ere ~1199 -0/s3 iwF/L.TRP/TIoN TREivc�I Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision Received at the City of Tukwila Permit Center by: Er Entered in Sierra on I — r D'"' evO CITY Op JAN 2 6 2 000 PERMIT CENTER 10/08/99 April 28, 2000 Brian Gadzuk 13041— 38th Avenue S Tukwila, WA 98168 RE: CORRECTION LETTER #3 Development Permit Application Number D99 -0335 Gadzuk Detached Garage 4813 South 146th Street Dear Mr. Gadzuk: City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director This letter is to inform you of corrections that must be addressed before your development permit can be approved. All correction requests from each department must be addressed at the same time and reflected on your drawings. I have enclosed comments from the Public Works Department. At this time, the Building Division, Fire Department and Planning Division have no comments regarding your application for permit. The City requires that four (4) complete sets of revised plans be resubmitted with the appropriate revision block. If your revision does not require revised plans but requires additional reports or other documentation, please submit four (4) copies of each document. In order to better expedite your resubmittal, a `revision sheet' must accompany every resubmittal. I have enclosed one for your convenience. Corrections /revisions must be made in person and will not be accepted through the mail or by a messenger service. If you have any questions, please contact me at (206)431 -3672. Sincerely, 2a Brenda Holt Permit Coordinator encl xc: File No. D99 -0335 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206.431.3670 • Fax: 206-431-3665 February 7, 2000 Brian Gadzuk 13041 — 38th Avenue S Tukwila, WA 98168 RE: CORRECTION LETTER #2 Development Permit Application Number D99 -0335 Gadzuk Detached Garage 4813 South 146th Street Dear Mr. Gadzuk: City of Tukwila Department of Community Development Steve Lancaster, Director Steven M.- Mullet, Mayor This letter is to inform you of corrections that must be addressed before your development permit can be approved. All correction requests from each department must be addressed at the same time and reflected on your drawings. I have enclosed comments from the Public Works Department. At this time, the Building Division, Fire Department and Planning Division have no comments regarding your application for permit. The City requires that four (4) complete sets of revised plans be resubmitted with the appropriate revision block. If your revision does not require revised plans but requires additional reports or other documentation, please submit four (4) copies of each document. In order to better expedite your resubmittal, a `revision sheet' must accompany every resubmittal. I have enclosed one for your convettience. Corrections /revisions must be made in person and will not be accepted through the mail or by a messenger service. If you have any questions, please contact me at (206)431 -3672. Sincerely, ciptudolia- Brenda Holt Permit Coordinator encl xc: File No, D99 -0335 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206.431.3670 • Fax: 206.431.3665 • October 8, 1999 . Brian Gadzuk 13041— 38th Avenue ,S Tukwila, WA 98168 Dear Mr. Gadzuk: Sincerely, Brenda Holt Permit Coordinator end xc: File No. D99 -0335 eeet1* Won. City of Tukwila 6200 Southcenter Boulevard • Tukwila, Washington 98188 RE: CORRECTION LETTER #1 Development Permit Application Number D99 -0335 Gadzuk Detached Garage 4813 South 146th Street This letter is to inform you of corrections that must be addressed before your development permit can be approved. All correction requests from each department must be addressed at the same time and reflected on your drawings. I have enclosed comments from the Public Works Department. At this time, the Building Division, Fire Department and Planning Division have no comments regarding your application for permit. The City requires that four (4) complete sets of revised plans be resubmitted with the appropriate revision block. If your revision does not require revised plans but requires additional reports or other documentation, please submit four (4) copies of each document. In order to better expedite your resubmittal, a `revision sheet' must accompany every resubmittal. I have enclosed one for your convenience. Corrections /revisions must be made in person and will not be accepted through the mail or by a messenger service. If you have any questions, please contact me at (206)431 -3672. daee Phone: (206) 433.1800 • City Hall Fax (206) 433.1833 John W Rants, Mayor N , 2 N ):fi UNf, DATE w1 I-J1 -1 REVISIONS JAS DESIGN BUILD • &1.o I L , f W I J irk 26 1 j C.0.6 r uts.i- rr e cr. 7.,,S2 r 3, crl 0 w ouo '�'. a T2 o V 4 111111 ` I 1 x r .__.- .__.. FILE COPY ors and moons not 111.181111112111 Vidatien of code OrIipt of ccntract;r's cf appro Dy Date P,.-~t No . ' q— 3540 WALLINGFORD AVENUE N SEATTLE WASHINGTON 98103 D r / v TELEPHONE 206 547 6242 RECEIVED CITY OF TUKWILA SEP 1S 1999 PERMIT CENTER FACSIMILE_ 206 632 5901 Pol-t2 z z' 4e_ 1couLf-41-4 p r _ rF 4 • I-1a IA: I • lap 2.2 12.12L 12L,s, . F :e rrr N\ II Lo ' 6 r - ---1 1142 11W e 192.0 ,11.,11 I DATE •L VI4 ik4rtzLokic, rocr-0-1, 2 4 , 1 14(2p..A. *--1-1 REVISIONS j DI 0 JAS DESIGN BUILD 4A, C;-0" ,E, VAZEI:MNT, co/c •2_5(2.)(W.Tr,t(eg, ' -66 grt-TigiVrOrg 1I Lc , 3540 WALLINGFORD AVENUE N 10 c.,1-1P91-161. ° PP/12 cLik SEATTLE WASHINGTON 98103 H41-11-IrzS.c--1-112-12 21-0 17.144. (4 5- t0 4 .r=0,3 - 1-s\-- . / 4.pk4r 2 c-7rU JLL 6, e, & e9.c.,, en&fale..1Z 1,22 lt-11P12 tu 4-0 r rr. TELEPHONE 206 547 6242 FIECEive, Gay OF TooviL SEP 1 4 1999 PERMIT cE, FACSIMILE 206 632 5901 PROPOSED PmweL PPiO?O 1.01 4-11MES HOUSE uNDSIZ SEPRanTrz PEAnir 0 99 -.0327 209gfi 182" .06 ...6,••■ FM. .06 a.s gymi GFIRRGE SITE PLAA1 4 /913 S. Melt TOWILR on. R7 4 2.` 0 scALE: 2 20 60 80 N 20 Pi Eitisk BRIAN GADzol< 2024 AIS /03: SE1171E W4 ZO4 526-_2S09 - CORRECTION FILE COPY that the Plan Check approvals are subject to errors and omissions and approval of plans does not authorize the violation of any adopted oodc or ordinance. Receipt of con- tractors copy of a oved plans acknowledged. I I &itif B Date Permit No. SEPARATE PERMIT REQUIRED FOR: 0 MECHANICAL EELECTRICAL 0 PLUMBING 0 GAS PIPING CITY OF TUKWILA e BUILDING DIVISir) , Gill OF TUKWILA PROVED 0 6.200 AS NO FEY ntrr 'M(3 DMMN RECEIVED CITY OF TUKWILA IAN 2 ri 7,f01 PERMIT CENTER Dcict-o335 ig1:1212--- rr: -rwizu 61 II .014 io);0 - Ip -p014,1 1/2 se • ryff -„ HF4 POL-12. - eta4L 6 fr,;;PUL.kl-1 rpr; r-re I- -- I DATE - P1C.zi; Fri - 1'1 -11 ) 1 Vd 14‘,2_..t4t2SE:43.. r4tIffip •••••■••• au 9' 03; S • fe& ?Ne A 1,40 . YzViA. %vet- 150cse. 6 M, .4. 7 jneNtirodttel n4if3iEt, syheNr. fievelibe ze5e.7>c *%, tek WAstiee? man lAf-11P r1,5,<;`"14"141 REVISIONS JAS DESIGN BUILD 3540 WALLI NG FO RD AVENUE N — c4;pFillf C P're•••"' ftifseati eNAN LAta M447 • " CaLY, t2pg..I .rLkelet.411-,4r* a•tpr..„ rzs.‘„.1.6. H1,1. 17.L.10 1-0 . T '10 WALL 4 !?.1.-4,0'0!1,-1 kl/r1,1190-4E0 I S •• 4_ • SEATTLE VVASH I NGTON 8103 t r; F,40 r ,. • • -04F4.111--, MAI tIALIK w4 12eAtte. nAtzs c.otvr. TELEPHONE 206 206 547 6242 c RECEIVED CITY OF TUKWILA N 6 2.0101 PERMIT CENTER 3Locg eP455 (zer ztrAce NAIL to/ eict eVr Al =cos, &lee m cm-v. FACSIMILE 206 632 5901 • ti • • RECEIVED' CITY OF TuKW1LA ENMfl k;e.NITER PxoPoSED P4Rcec a. S708 OUT EL. 3154 i ELECT. SERVICE I "WRYr1t 1.,A/E Li Ale L r» GAS 1 W,'rEa T ELECT UTILITY PLAN 14813 S. /q6St TOKW1LA WI?. noox ELEW 17,5 PROpOSEb HOUS p,a1V4 09.7-0327 3' 20' C.o. AT 167" SECTION 1 Q.1 2o' EP SE11ENT gUr1LITy SECr/al./ hctue, /y 1 =l S• S• 3' BELOW worsA m CRo 6 5,s, V,gy' 2% SRAM R UA) Giolvic. C PIs R. S -S - 20' .1395ft 2.14 8 l' AS �A 8 6 yA SUR FAC)A16 /3'00 14 i P R P C S O GA- SE 1 m r IsTrsneK 22' 7 .....,........._,...,_._._____ 0 DESCRIPTION: Licrr5 G AND 1S 8Lcx. S /N0AMNS HopiE MCNCTS, ACCDKPING 'TO 111E ?LA 1 }iErEOF' win.D I!J Vouit 11 OF PLA7S, Pry 31, iN Xl1JG- CouNry,WASIf11JEr'T01J; EXCEPT THE NORTH 17S FF.E4* Or THE WEST 89 FEET` of 5R1D L.or 6 • . A JD EXCEPT THE N iLTH 20Z FED 0C SAID L 6 Lv/l EAST OF THE WEST" 84 FEES THE E0F; - >a6-E'HHER 4 r1-Fi AN EM Eb EJJr7 Fog.. i N6RFSS EGRESS At-ID LrnuTlE„S OvEA UNDER, NG- AJD ACP1S5 THE .WEST 20 FM F T13 F NOrn-1 1 FE F 5ALP Lai ''; CALSO }CMoo& AS PA rzc L j B-i Lm o0 74.nao lLA souN DA1tY L JatE AD Lb rMZJJ7 t.Jo• L98 -0030, 1ECpitgE.p uN i1N6,- NUMBER. 8os251 Jiro) SURFACE CLERVourr FEA - wxw►c.9 S$2 ) 20 2 6' S,S. , J:?v SDR'3S _ • _ LE : . 1/1'" �. -- - - -- /75 C. o. (FL; e'rhyuN 1 rr:40t -JM 20: FESEMEIVT 72''O- 2 1, k, NOTE d STORM DR/31 SHOWN' '' ON SITE DRR1tj4e o TOTAL /MPA1e v'ious AREA 12909 P.' (Pivot.) /OUSE �s 7'd y8E .SPRINKLED I/1 N 60 DRIA?tI Gf4czui< 246 325.2509_ 80 qq 33-S CITY Of TUKWlu APPROVED; JUN U6 20s AS hOlail 11.11Ln!NG LA/1 / l ` "WR7Erc CONC/!�b �,BC#r6D fr7 pRo y L /VLF Fo& T 2. c ? 'EQ u1P[ (wrtWrW crry Kou)) x'1. AR , vE w N V pAv/N6 TO Mt3?CN ,R w '9 RECEIVED OITY OF TUKWII.A PERMIT CENTc.;R NOTE ; 4 tis4loo Fort .. ...sronm PIRIN 1.1.4. (on.c BE 3013NITTED Lair 9 PLItIVS F01 PARCEL .- -- - - 31° -- -- - - - ..- 312- .-- ..- "" ., / PROP6SED - # , ,, .-- I- --1"ARCeL ao , • - _, ..-- - r \ .- „...- - . --- 1 -- -- .- —.34, 1 ..- ,- - ..- % _ „-- ■ _. ..... .. -,7or •1 1 --- ....--, N I / .. ...., ,.."' • r '" '' ) ! ...-• er'' ./ ) 1 / I o. ........" ..• ,..qoa fr. I I 1 - " . . ..: , 1 I I I if .-- ,r, ) ) r , i ....- . • . e • . , e l, — „ O f f i I I / -- / i ' . ,. 7 - -ii.:. ,...... -.--- •,,, ',.. I , t . A 1 r ' r t .- ,- - N ' /, ,, ' / I 1 .1 ' / 7 I i i - I (, I 1 7 /7 1 F 1 , 1 . 1 1 1 / I I s I 1 1 1 . i I / I • ( 1 1 I t 1 ..—...--........-....-...-t ... / t 1 I 1 1 / \ ■ ) i / ■, , j 3/8 -frenc As . senfotic t< PR,VNIV, 401 A.M.WS STEEr --TZ- 0 PE_S_ SLOPE A% 12/ 4 IlOOSE uNDetn, PAlkt D 99-0327 209q !ILL ROOF DONA6e ivria O., --J toclgo 0335 — '3- 94 EL 317.5 C-L 3/b 5 nc k • 1001e: ,9ee Ne24.. pale foe vie.a,s 0.P roJE--'0.,ef \ - - $4?7 134cles (.4)/LL 8E 4 Pc. /6/ ricom.130/zPiA)6si s'O' icedoi 1 /813 S. / wit?. 5 ,5`/ - 8 87 sz.oPE A d&0: S 64C/r 0 2.0 ae) —__..... _ • P. CRAM BERmFD Viotti 416) \CoLvaRr / 2.0 -P1.4:467E.HEIV'r Divveuffiy ShoP4,7 26E _SCALE - /7..0 -- )3ERPt Der/9/ Bari 175' 60 "? N S!?Af GADzUk 202 NS_ 4tAaST. SEME e06 526440 a_ 2-Il" 7bTAL IltiPeRV/OUS ARO? ?3/? - .1REve t eiticrif 30/1 Jooe 1,419,11 3 4 • F standards. miens which adopted standar* tiorthe adequacy desionc t riy final ast: Oka public Works WS. GI - 6 — e P 144 o r./ 1113 with subject to errors *ze 7 -1sibi - 5S N (.1 6 2002 _ cipx u RECEIVED MAY 2 2 2000 TUKWILA PUBLIC WORKS MY OF TUKWill APR OvED NO 1ED ,� Ili / .f aY, i // �' {.e �v ..J ✓.--` -. -., - HOUSE UNDEfd S Pf3r .Ef'1" C pfl fl_ D99-0327 - - _ 3 12 .P' El4 // PROPOSr" D 2 4.4 E4 SS P 't PjO$ 40D : IM' - Su .T FE owv PRoeert I^ /Ne 2`RocKERy 3/ Al FNSN 6R ADk - 2 H- IV M19X 3l opk TYPICM.. SEDIMEAIr e EROSJO1U 'C©MTROL. 7;wpoi2i12V SE1 n✓f1vr 4 (niem./ color/ c 3W/?L - co/vs/sr or /:`x 25' Rock sire EM7f2°y .SJ L.7 - FC-A,c1A/G or 3'1610/N6 ,9RMMs RAiD HOL cIIIuG 01711 c,srpA atANy DlsTo BeD ',REP MT $ &/ IA16 &t RkteD lag Hone- 7,VEA} 'Tao pigys, P,�I�M19�U'�N7 .5 /Mew Be Rocco .ACID tpJI 01C soD I 8e R 'S9(67) WITH/A) 3'',O PRY, :or Ca tkE710/1) of PROJECT= t�HD 335 GFMDING ?EROS/og coNTRoi.. PI'M 48/3 S. it/6 rums) /L lJA. N OEL u &r& g4-3/4,6* 3/7 1 &7 l'e 454E7 .., 31y FENsr�` r _ 454E 3'RecreRY Ao O c up` v A N " r y BEST. GAFt9:E 0:Yj Fla 9univray st _HOV 0 p . G? I t3GE ( .%` U7' Qt' /f74& _AND G110 76F REco/v ?oo4, eAsTeei) seer/m) OP Pk Z C7 ess' - - - !° DRS //nG. / q 4 cQQ.7: FROM /N Ff l.7R,5!(O ' TR'i'tHS 36 1 _ LJ /LG, BE f1J1DEJT TJ Tile h'/9r/MM2 fNCv -i hiub . . ELMS 20 CLEr rAr6 4M /TS CI.ERRIA)6 >• % X1.316 _ cce- Ss R ®, itlarf/li . l ey172odus sL. 0 per _ .' Sc! J : / " ;: 20' 1�d a 60 N ARYAN GPDzVJ< 202 N6 /D8*dST. SEfl1fl.E WA ao4 52S2SO& 80 1 V1'1 X3 35' RECEIVED MAY 2 2 2000 gt L3KS os Or 7 OF TII EiINIlA APPR 'II1N 0 6 2COR h!() (E.G ?rib rlt f ,u SFCIloi0 P4194i Via) - 172Dx41 roof drain 4° rigid or 6 flexible perforated pipe r 111 PLAN VIEW NTS PLAN VIEW NTS g t;. rn 5.0' min varies ° SECTION A NTS 4° rigid . perforated pipe overlow splash block 4" rigid perforated pipe washed rock 1 1/2 NOTE • Pi) 6-E q8/ 43 Tokai.19 1/2/ 1 < 7S' Si. 318 compacted backfill sump w/solid lid fine mesh scrfrp— CB sump w/solid lid 10 lq CC ROADW R Y PROF/LE 20' Et 3M EZ3/8 ACCESS ROnD(4)13Y SEc , / sLope 12% NORTH PL 7O socny/ Pi. /87' EnsEnrpr Roocogy sa-,, tope= A % /y6 kOR771 PL. 7S PEA, PEer 4 6' •t_ '- 17S' 43.ER,m 2' CtIA.T34 NP/H9C7 6 WRivi./va Z.> 1\1 PistiAi VIER/ 7R5PC11 ,SserILF '" PVC "TYPE C gECTiok 77EAlcli 4 V C BR/'94/ arav AO 2•Sf NE/&3 Seeti 4 704- S2S 8 washed rock P1121V V/Ea Vektli .-b b • . 12° lzd k !=■., ° v ° GUY OF TUKWILA APPROVED • MIN 0 6 nog. AS NOTED rvit compacted backfill , rigid or 6° flexible perforated pipe varies a% ORM r These plans have brn rerredm by cuT Works trTradlr.neAnc'crtsplanOntr613sXrct tc 1"P 1 omissions which do IllUfhonsevrieosationr:.. forte adequacy of teststotally with the adopted standar designer ",,:ditions. or revivons to these dawing, f;.:', this Vold this acceptance and,..;: .:quire a revised drawings for subsecuent Final qceLp:ance Is sublecito field inspectiontlf the Public Works utilities inspector. Date: -----....... # R-sps 4a Cr L.1-r a ,thow 111•111111111111/ --- ( r.sioNN■ 1 ,. ECEIVED MAY 2 2 noo TUKwI PUBLIC WORKS 71- ® No. 225.0G HAS'TINGS, MN. LOS ANGELES — LOGAN, OH. — McGREGOR, TX. — LOCUST GROVE, GA. U.S.A