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Permit L01-034 - LABEL SCOTT - SHORT PLAT
LO1-034 SCOTT LABEL 4643 S 145'° ST (SP) July 12, 2004 LAND DIVISION LAND DEVELOPMENT Mr. Scott Label 4226 S 146 Street Seattle, WA 98168 City of Tukwila Department of Public Works James F Morrow, P.E., Director SUBJECT: EXPIRED PERMIT APPLICATION M102 -194 (PRE02 -092, L01 -034) Label Short Plat Dear Mr. Label: In reviewing our current permit application files, it appears that your permit application for short plat improvements applied for on December 11, 2002, has not been issued by the City of Tukwila Permit Center. Steven M. Mullet, Mayor Please contact the Public Works Department at (206) 433 -7184 by July 30, 2004, if you wish to extend this permit. If we do not hear from you by this date, your permit will expire and you will be required to submit a new permit application. Thank you for your cooperation in this matter. Sincerely, "U Laurie Werle Permit Technician enclosure Cc: , ... Nora Gierloff File M102 -194 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 433 -0179 • Fax: 206 - 431 -3665 January 17` 2006 Steve Lancaster City of Tukwila Dear Steve: Sincerely, VaJ Vue Re: Sewer easement across 4643 S. 146' Street Gary Sing.h has a developer's extension in process with Val Vue Sewer District on S. 146`" Street & S. 148 Street. Mr. Singh is working with the property owner at 4643 S. 146 Street to acquire a sewer easement across the East side of the property. Combined with additional easements to the South, this will allow sewer service to properties on S. 143'" Street. His proposed location for the sewer easement is the best alignment to provide sewer service to properties on both sides of S. 1 east of 46 Ave. S. VAL LIE SEWER DISTRICT Dana Dick General Manager DD /jw P.O. Box 69550 SEATTLE, WA 98168 14816 MILITARY ROAD SOUTH MICHAEL J. WEST JOE T COLELLO RICK FORSCHLER COMMISSIONERS er OP1 M UrU7j, W CC 2 UO W = H w g - d. = w z � DANA DICK GENERAL MANAGER 206/242 -3236 FAX 206/242 -1527 Fecl;r,..rrt >.a ✓..+. ...a,.s:k? ...� a.'rn:�� :!- : ;:s:+::s'a,# . .... M.wi...veao.sY�w/XirS�aY 'M4rwwuvtiwuww....�. w o 2 0 z s 46A3 Sou t41146 .sr fr I . 1 °6 : oiatig LD7-1. 11778 /. 698 Veet Lo/ G 6c9:8' -silk I .J to: td.1,5 cute e (4,4p isq) firell sOtek ecoti b, c 4Ird 4 t/; /_ , p cOMMUN1rr DEVELOPMENT i f ,; X' f) t ed 6) z i! 0-44"cd ) c[ ei 2 jUk IL) lLA �9 RECEIVED RECD' VED 'JAN 1 7 2Ofy JAN 1 2006 S u v -/ I y� '44 1 ur\vvJ /36'4 PUBLIC WORKS . y 1.i M January 13, 2006 Scott Label 4226 So 146` Tukwila, WA 98168 Dept of Community Development City of Tukwila 6300 Southcenter Blvd Tukwila, WA 98188 Dear Mr. Lancaster: This is to request your opinion of the attached "rough" short plan drawing for the property located at 4643 So 146' St, of which I am the owner. Specifically I need your opinion on increasing the length of my access road to 235 feet. Mr. Gary Singh, a property owner on So 148 "', has asked for my approval in granting a sewer easement, over my property, in favor of Val Vue Sewer. I will grant the easement if my aforementioned plans meet the City of Tukwila's approval. Mr. Singh needs that easement in order to develop his property on So'148 Street..Please see attached ariel map. Without the easement he will be unable to develop his prorties, as there is currently no sewer on So 148 Street and no sewer line planned for the future. My property is the only logical location for the easement because of the surrounds properties he is planning to develop and from what I understand no other location�ut mine, would be feasible. The proposed sewer line will have added benefits to many other properties on So t4 Street, as many other homeowners would be able to hook into this line, which VallrVue Sewer is very much in favor of. • Again in order for me to grant this easement I need to know that the "rough" planthat I am attaching would meet with the City's approval for minimum lot size, set back requirements and length of access road. Thank you for your assistance in determining the viability of my plans. ,i r ryldere .:t'...' Sc tt Label 206 -243 -4 -t A/14(.:4€.4 i {U-k 1,0i1l • r et 4 1:66e' RECEIVED JAN 1.7 2006 COMMUNITY DEVELOPMENT V ,�ILi ia'�s7 �1G z ~ • w 6U O 0 ci J I— w w o u _ -±-`° 3 F w z = I— 0 z w 2 o . U O — O I-- w W ` I— H U.. p w z . C.) U) O March 26, 2003 Dear Mr. Scott Label: City of Tukwila Project Name: Label Short Plat 4643 S. 146` Street File #: MIO2 -194 P02 -092, 101 -0/4 If you have any questions, you may contact me at 206.433.0179. Sincerely, L. Jill Mosq da, P.E. Engineer - Development Steven M. Mullet, Mayor Department of Public Works James F. Morrow, P.E., Director The City of Tukwila, per Tukwila Municipal Code 11.08.110, requires a corporate surety bond, cash deposit, or letter of credit for 150% of the value of the right -of -way work to be done. This bond guarantees faithful performance of the permitted work. The City of Tukwila, per Tukwila Municipal Code 11.08.110, requires a two -year maintenance bond or warranty for 150% of the value of the right -of -way work. This bond warrants the work performed in the right -of -way. To access the entire Chapter 11 of the Tukwila Municipal code, please go to the City of Tukwila site on the Internet. 150% of $10,500 is $15,750. This is the required amount of the performance bond. This is the required amount of the maintenance bond or warranty. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206.433.0179 • Fax: 206-431-3o65 uCY >3iY ,w:1`'`w Fx 3zra wr¢�tia_ <.Lt; N; rt ?s November 4, 2002 Mr. Scott Label 4226 South 146th Street Tukwila, WA 98168 City of Tukwila Department of Community Development Steve Lancaster, Director RE: Label 4 -Lot Short Plat (L01 -034) 4643 South 146th, Tukwila NOTICE OF DECISION Dear Mr. Label: The Short Subdivision Committee has completed review of your short plat application (No. L01- 034), and determined that it complies with all applicable City code requirements. The City SEPA Responsible Official has previously determined that this application does not require a SEPA threshold determination because it is categorically exempt. This letter serves as the Notice of Decision per TMC 18.104.170. Based on the latest project submittal, preliminary approval is granted subject to the conditions stated below. There are three basic steps in the short plat approval process: 1. Preliminary Approval Utilities This letter constitutes your preliminary approval. The application was reviewed by the Tukwila Short Subdivision Committee and approved with conditions. The conditions imposed are to ensure the short plat is consistent with the Criteria for Preliminary Approval listed at TMC 17.12.020 C in the Tukwila Subdivision Code. PRELIMINARY APPROVAL CONDITIONS Steven M. Mullet, Mayor a. Drainage design shall meet City of Tukwila Surface Water Ordinance Requirements. Contact the Tukwila Public Works Department for submittal and design requirements. b. Pursuant to Chapter 11.28 of the Tukwila Municipal Code, all utilities shall be placed underground. c. Extension of the sewer and water lines to the lots shall be approved by the appropriate utility. As -built plans shall be provided to the Public Works Department. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 z ~ w ce 6 J U O 0 u) o U) J I- U) u w J ▪ w z F . I-0 z I- • 0 0 • Y O 1-- wW .z w U= O ~ z Label 4 -Lot Short Plat L01 -034 November 4, 2002 Page 2 z Access • z �w d. A 20 -foot wide paved access road with an all weather surface built to Public Works and 6 D Fire Department standards must be provided to any new structures. A fire turnaround co o will be required if the access road exceeds 150 feet in length. This requirement must be w w stated on the face of the recorded plat, and must be met prior to issuance of any -J 1- building permits. w o Fire Protection g e. Prior to development of Lots 3 and 4, the following will be required: There must be a fire = a hydrant within 250 feet of all building sites. If the fire hydrant is not capable of a 1000 Z gallon per minute flow the future houses will be required to provide interior sprinklers, to o be approved by the Fire Department. This requirement must be stated on the face of w recorded plat, and must be met prior to issuance of any building permits for Lot 3 or o the Lot 4. o C2 o General w w f. You will need to obtain all required permits prior to beginning any construction. For water "- 0 and sewer permits, contact the individual provider District. For City of Tukwila utilities, u.i N. contact Tukwila Public Works at (206) 433 -0179. o o g • Install all required site improvements, including those proposed in the short plat application and those identified above as conditions of approval. h. Submit a set of recording documents in either legal or record of survey format that meet the King County Recorder's requirements and contain the following items: 1. A survey map as described in the application checklist that is consistent with all of the conditions of approval. The surveyor's original signature must be on the face of the plat. 2. Existing and proposed legal descriptions for all lots. 3. Legal description of all access and utility easements. These easements shall also be included in the Joint Maintenance Agreement. APPEALS This short plat approval decision is appealable to the Hearing Examiner. One administrative appeal of the decision on the short plat, excluding challenges to the DNS, is permitted. If an MDNS was issued, any person wishing to challenge either the conditions which were imposed t+ kSArfi±;+r ir:?"artsiP� srv+e�Y+ z Label 4 -Lot Short Plat L01 -034 November 4, 2002 Page 3 M by the MDNS decision or the failure of the Department to impose additional conditions in the MDNS may raise such issues as part of the appeal. If no valid appeals are filed within the time limit the decision of the Department will be final. In order to appeal the decision a written notice of appeal must be filed with the Department of Community Development within 21 days of the issuance of the Notice of Decision (November 25, 2002). The requirements for such appeals are set forth in Tukwila Municipal Code 18.116. Appeal materials shall include: 1. The name of the appealing party. 2. The address and phone number of the appealing party; and if the appealing party is a corporation, association or other group, the address and phone number of a contact person authorized to receive notices on the appealing party's behalf. 3. A statement identifying the decision being appealed and the alleged errors in the decision. The Notice of Appeal shall state specific errors of fact or errors in application of the law in the decision being appealed; the harm suffered or anticipated by the appellant, and the relief sought. The scope of an appeal shall be limited to matters or issues raised in the Notice of Appeal. Any appeal shall be conducted as an open record hearing before the Hearing Examiner. The Hearing Examiner's decision on the appeal is the City's final decision. A party who is not satisfied with the outcome of the administrative appeal process may file an appeal in King County Superior Court from the Hearing Examiner's decision pursuant to the procedures and time limitations set forth in RCW Chapter 36.70C. An appeal challenging a DNS, an MDNS or an EIS may be included in such an appeal. 2. Final Approval The next step is to install the required site improvements, comply with the conditions of approval and submit the necessary short plat documents (survey, legal descriptions, and other required paper work). You may apply to delay installation of the site improvements up to six months beyond final approval subject to the approval of the Public Works Director. A financial guarantee must be provided to ensure installation. All taxes and fees assessed against the property must be current prior to final approval. Please check with the King County Assessor's Office and the City of Tukwila Finance Department prior to submitting final mylars. After the documents have been found to be in order, and the all of the requirements of the short plat have been met, the Chair of the Short Subdivision Committee signs your short plat which constitutes a grant of final approval. Label 4 -Lot Short Plat L01 -034 November 4, 2002 Page 4 Sincerely, Steve Lancaster Chair, Short Subdivision Committee z w ~ Expiration w w JU The final approved short plat must be filed with the King County Department of Records by o 0 November 4, 2003, one year from the date of this preliminary approval or the application w = will expire. The City may grant a single one year extension if requested in writing prior to -J t- CO u _ the expiration date. u 0 3. Recording - The signature of the Chairman of the Short Subdivision Committee certifies that your short = co n plat application is ready for recording. It is your responsibility to record the City approved Z z short plat documents with the King County Department of Records. You will need to pay 0 the recording fees and submit your approved original short plat to King County. The short w ~- plat is not complete until the recording occurs and copies of the recorded documents are 2 D : provided to the Department of Community Development. o O- o l-• After recording, the County returns the recorded original to the City of Tukwila within 4 -6 w w weeks, at which time your short plat is considered complete. You can shorten this � v . processing time by hand - delivering a copy of the recorded short plat to the project planner. �'-- z' w U N t=-= O I- In many circumstances, building permits on the short platted property may not be issued until a copy of the recorded short plat (or original) is returned to the Department of Community Development. cc: Jim Morrow, Public Works Director (please initial your approval) Tom Keefe, Fire Chief `` ( ase initial your approval) King County Assessor, Accounting Division z October 29, 2002 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 Dear Mr. Label: Sincerely, Deborah Ritter Senior Planner Enclosure City of Tukwila Department of Community Development Steve Lancaster, Director RE: Label 4 -Lot Short Plat (L01 -034) at 4643 S. 146th, Tukwila We have received your October 9, 2002 revisions and are completing the last phase of our technical review. We will be in contact with you shortly regarding the Short Subdivision Committee's decision. In the meantime, the Public Works Department has enclosed the following comments pertaining to future infrastructure installation for the project. If you have any questions regarding Public Work's comments, please contact Jill Mosqueda at 206 -433 -0179. cc: Jill Mosqueda, Public Works Steven M. Mullet, Mayor 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Dept. Of Community Development City of Tukwila AFFIDAVIT OF DISTRIBUTION I , ..! —"lam- HEREBY DECLARE THAT: Notice of Public Hearing Determination of Non - Significance Notice of Public Meeting Mitigated Determination of Non - Significance Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt ,I-Aah %1,;. Official Notice Project Number: .Z/ —.0,y Short Subdivision Agenda )4 I Notice of Application of Ad--1X- Shoreline Mgmt Permit ' Notice of Application for Shoreline Mgmt Permit _ _ FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 ,_ 77�i� -�- r ,44/_--7-i. Was mailed to•each of the addresses listed on this day o f7?i-n the year 20 O„P.- P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM : KHiW4L1 'OVi:I?J�+a!e:!1Nw!t�ro�a+•. n�+r..«..,_........ ._... Project Name: 2 � J ,I-Aah %1,;. Project Number: .Z/ —.0,y )4 I Mailer's Signature: of Ad--1X- 4 ' i, S /y >...CG- Person requesting mailing: 06_a_ �� �� 4��-. l je, Was mailed to•each of the addresses listed on this day o f7?i-n the year 20 O„P.- P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM : KHiW4L1 'OVi:I?J�+a!e:!1Nw!t�ro�a+•. n�+r..«..,_........ ._... November 4, 2002 Mr. Scott Label 4226 South 146th Street Tukwila, WA 98168 RE: Label 4 -Lot Short Plat (L01 -034) 4643 South 146th, Tukwila Dear Mr. Label: There are three basic steps in the short plat approval process: 1. Preliminary Approval Utilities City of Tukwila NOTICE OF DECISION PRELIMINARY APPROVAL CONDITIONS Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director This letter constitutes your preliminary approval. The application was reviewed by the Tukwila Short Subdivision Committee and approved with conditions. The conditions imposed are to ensure the short plat is consistent with the Criteria for Preliminary Approval listed at TMC 17.12.020 C in the Tukwila Subdivision Code. a. Drainage design shall meet City of Tukwila Surface Water Ordinance Requirements. Contact the Tukwila Public Works Department for submittal and design requirements. b. Pursuant to Chapter 11.28 of the Tukwila Municipal Code, all utilities shall be placed underground. c. Extension of the sewer and water lines to the lots shall be approved by the appropriate utility. As -built plans shall be provided to the Public Works Department. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 z w 2 J C) 0 0 co co w J CO Li. w 0 2 L a = • a • w Z I- 0 The Short Subdivision Committee has completed review of your short plat application (No. L01- w F- 034), and determined that it complies with all applicable City code requirements. The City SEPA 2 Responsible Official has previously determined that this application does not require a SEPA a threshold determination because it is categorically exempt. This letter serves as the Notice of o 1- Decision per TMC 18.104.170. Based on the latest project submittal, preliminary approval is w w granted subject to the conditions stated below. I L w z U= O ~ z Label 4 -Lot Short Plat L01 -034 November 4, 2002 Page 2 z Access w d. A 20 -foot wide paved access road with an all weather surface built to Public Works and m Fire Department standards must be provided to any new structures. A fire turnaround u) o will be required if the access road exceeds 150 feet in length. This requirement must be w i stated on the face of the recorded plat, and must be met prior to issuance of any -J r U) u _ building permits. w O Fire Protection w ? e. Prior to development of Lots 3 and 4, the following will be required: There must be a fire z w hydrant within 250 feet of all building sites. If the fire hydrant is not capable of a 1000 I- Ill gallon per minute flow the future houses will be required to provide interior sprinklers, to 1- p be approved by the Fire Department. This requirement must be stated on the face of w I- the recorded plat, and must be met prior to issuance of any building permits for Lot 3 or 2 D Lot 4. 0 N O — o }— w w I U f. You will need to obtain all required permits prior to beginning any construction. For water `—`' Z and sewer permits, contact the individual provider District. For City of Tukwila utilities, w • c contact Tukwila Public Works at (206) 433 -0179. I O General g. Install all required site improvements, including those proposed in the short plat application and those identified above as conditions of approval. h. Submit a set of recording documents in either legal or record of survey format that meet the King County Recorder's requirements and contain the following items: 1. A survey map as described in the application checklist that is consistent with all of the conditions of approval. The surveyor's original signature must be on the face of the plat. 2. Existing and proposed legal descriptions for all lots. 3. Legal description of all access and utility easements. These easements shall also be included in the Joint Maintenance Agreement. APPEALS This short plat approval decision is appealable to the Hearing Examiner. One administrative appeal of the decision on the short plat, excluding challenges to the DNS, is permitted. If an MDNS was issued, any person wishing to challenge either the conditions which were imposed z Label 4 -Lot Short Plat L01 -034 November 4, 2002 Page 3 by the MDNS decision or the failure of the Department to impose additional conditions in the MDNS may raise such issues as part of the appeal. If no valid appeals are filed within the time limit the decision of the Department will be final. In order to appeal the decision a written notice of appeal must be filed with the Department of Community Development within 21 days of the issuance of the Notice of Decision (November 25, 2002). The requirements for such appeals are set forth in Tukwila Municipal Code 18.116. Appeal materials shall include: 1. The name of the appealing party. 2. The address and phone number of the appealing party; and if the appealing party is a corporation, association or other group, the address and phone number of a contact person authorized to receive notices on the appealing party's behalf. 3. A statement identifying the decision being appealed and the alleged errors in the decision. The Notice of Appeal shall state specific errors of fact or errors in application of the law in the decision being appealed; the harm suffered or anticipated by the appellant, and the relief sought. The scope of an appeal shall be limited to matters or issues raised in the Notice of Appeal. Any appeal shall be conducted as an open record hearing before the Hearing Examiner. The Hearing Examiner's decision on the appeal is the City's final decision. A party who is not satisfied with the outcome of the administrative appeal process may file an appeal in King County Superior Court from the Hearing Examiner's decision pursuant to the procedures and time limitations set forth in RCW Chapter 36.70C. An appeal challenging a DNS, an MDNS or an EIS may be included in such an appeal. 2. Final Approval The next step is to install the required site improvements, comply with the conditions of approval and submit the necessary short plat documents (survey, legal descriptions, and other required paper work). You may apply to delay installation of the site improvements up to six months beyond final approval subject to the approval of the Public Works Director. A financial guarantee must be provided to ensure installation. All taxes and fees assessed against the property must be current prior to final approval. Please check with the King County Assessor's Office and the City of Tukwila Finance Department prior to submitting final mylars. After the documents have been found to be in order, and the all of the requirements of the short plat have been met, the Chair of the Short Subdivision Committee signs your short plat which constitutes a grant of final approval. N WM.4Y . W F�K4 ^:Ri'7Y(Y*1- !.T'Nt.;ne'+'..7 er . ?'oT+.11 ____ + 'n M.! %rttwr, q.,Ict y,Imr `.RNW4.4t+r r Label 4 -Lot Short Plat L01 -034 November 4, 2002 Page 4 Expiration 3. Recording Sincerely, The final approved short plat must be filed with the King County Department of Records by November 4, 2003, one year from the date of this preliminary approval or the application will expire. The City may grant a single one year extension if requested in writing prior to the expiration date. The signature of the Chairman of the Short Subdivision Committee certifies that your short plat application is ready for recording. It is your responsibility to record the City approved short plat documents with the King County Department of Records. You will need to pay the recording fees and submit your approved original short plat to King County. The short plat is not complete until the recording occurs and copies of the recorded documents are provided to the Department of Community Development. After recording, the County returns the recorded original to the City of Tukwila within 4 -6 weeks, at which time your short plat is considered complete. You can shorten this processing time by hand - delivering a copy of the recorded short plat to the project planner. In many circumstances, building permits on the short platted property may not be issued until a copy of the recorded short plat (or original) is returned to the Department of Community Development. Steve Lancaster Chair, Short Subdivision Committee cc: Jim Morrow, Public Works Director (please initial your approval) Tom Keefe, Fire Chief `r ( ase initial your approval) King County Assessor, Accounting Division Short Plat • Infrastructure Installation Projects /short plat/label 101 -034 comm 5 CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS Project Name: Label Short Plat 4643 S. 146 Street re 2 J 0 File #: L01 -034 0 co 0 co tu Comment #: 5: Response to Comment Letter #4 u_ Date: 10.29.02 W 0 Reviewer: L. Jill Mosqueda, P.E. a w The City Of Tukwila Public Works Department has the following comments regarding your z 0 application for the above permit. Please contact Jill Mosqueda at (206) 433 -0179, if you w (- have any questions regarding the following comments. ? o U 0 w uj .. z w 0 z Before the final plat is recorded: • Show easements on the plat map. • Provide separate easement documents to be recorded with the short plat. Turnover of Public Infrastructure Installation of piping and catch basin in row requires turnover of these items to the City. The City expects as -built drawings with surveyed elevations, and completed turnover documents before the final approval of the Public Works permit. A turnover packet is enclosed. New Permit System On Oct. 16, 2002, the City implemented a new Public Works permit system. Please refer to enclosed Bulletin 1. Public Works also has a new right -of -way use ordinance, Title 11, enclosed. Fees have gone up and requirements for work in the right -of -way are more stringent. Improvements for this short plat will be installed under a Type C permit. This permit will cover work onsite and in the right of way. Applicant shall pay a "plan review and approval 1 fee" with the application and a "permit issuance and inspection fee" when the permit is issued. Bulletin 1 has a worksheet to help estimate permit costs. The plan review and approval fee includes two reviews. Additional reviews, due to non - response from the Applicant will be charged. The plan review and approval fee covers two inspections. Any additional inspections, per inspection item, will be charged an additional fee. z i1- w re 2 J Provide the following with the Type C application: N o w J = F-- � u_ w O 2. Cut and fill volumes. N a 3. For work in the right -of -way (row): z = • Application contents per TMC 11.08.030. O zt- • Insurance per TMC 11.08.100. W uj CI • Deposits, fees and bonds per TMC 11.08.110. v O • Hold Harmless agreement per TMC 11.08.120. 0 H w w 1-- 0 . L • On sheet 2/4, previously 2/3: The access road profile shows the low point at 1 +50, w z which is not the center of the turn around as shown on sheet 1/3. Show placement U ! of the low point of the road so drainage from the road will flow into the catch basin located in the turn around. z • Plan, profile, cross - section, elevations, slopes, typical details, materials, diameters, bedding material, etc., for the storm drainage piping, culvert and catch basin(s) in the right -of -way. • Provide clean -out locations for the detention tank. • Provide paved access to the detention tank. • Provide depth of sanitary side sewer where detention maintenance access crosses it. This line may need to be sleeved. • Remove unnecessary dashed lines and comments. Do not scribble them out. 1. Copy of the contractor estimate or engineer estimate for the work being permitted. Public Works will review and may adjust. Any adjustment will be made when the permit is issued. 4. Plan sheets: Projects /short plat/label 101 -034 comm 5 2 .. i. �t'.:•.: nt'....: v5 ::lliic�.u;L-!iSui7:'+2.'A� "k< eta .di,+.kritw'asu:cnTS!"v+"rlxs« f.• .' •�• -n,� ....d , • i;i; ; :.1,4• :; 1.1.: 7iB•j °:rl ::p::ky�"ir.'1:t:r: . 7 ;; : a.r ?;�• . •• :;�.�•• . . i'. . •: yi t;'i . • d: r 41:i4 t4 47. 35 :it. �. .>' • ' �, • `.; . t ., ..J• �� • r, r . .!, : ";...tFi::::... : a•: �. . . ' O;;� l alii • D y I ` •i . SI • Community �GS7/2 . • Drainage Basin. G ACS �/;U� lA� � • :: t.: ��t;i�4if • A :!li: f:n � .. �yt'- 7: ::::. � ;i i 7� t i �}EIGEERii u(,' tE1;�Ck°':ly,rr : t r'io r ,t;;�'�:•: ., . Project Owner, - 2 �G Address 4?2 'Si /466 - S7 . _ . Pho ' wfG A- �.✓/4- 9.9i 6 b' • ( 243 4 project Engineer 6ompany /4 2 ¢s- S ee`,9 /.; S_ .9j &JAI pee/,‘,9 Address/Phone l >oG) 2-92- <• Subdivison Grading Commercial Other King County Department of Development and.Environmental Services TECHNICAL INFORMATION REPORT (TIR) WORKSHEET %Pa ;E?�ROJ.Et •5DE$ + t It U - u�rt�7 Project Name SO7'7 fC, La7 cryie 1 7 /�L/�� Location Township i / ,1 Range z3 Ar / Y / Section • 07 • [�:x,.•��•�ii���(i�r•i::;vy: :-.. tc•" 7:: 11ar.: '•.T.t.'r'-''r(x.!��:E•:�{;:;. MIEINS. D i3t1 ;'c�;F �Ii;7 +.:, `;ir�s .. + • •,r• +,. ::i DFW HPA COE 404 DOE Dam Safety FEMA Floodplain COE Wetlands Shoreline Management Rockery Structural Vaults Other S[TEaGl i4R 20TEBISl River Stream Critical Stream Reach • Depressions /Swales Steep Slopes Floodplain Wetlands Seeps /Springs High GroundwaterTabl(,�G/ Groundwater Recharge Other RECEIVED CITY OF TUKWILA OCT — 9 2002 PERMIT CENTER S Soil Type. •Slopes':.. :',:; Erosion Potential Additional Sheets Attached Erosive Velcoties Low Z . 0 ccJ t�`;c•:ei :r ••4: � i7•..��N'� !'�'::.:,':'.4l�:l711:i4 n .. t . �`. .. y , �,. ":r'• :(�:r•a(.r+s.'_•:t •S:. ?:i1, < �.t�:��:• ., cr.l: 0 +:-t 1 :. 3 � ±t REFERENCE Ch. 4 • Downstream Analysis ' • �ilic'� !/O wNSYlP�iZw� . - .a,∎. c )='? a Zvc eri / ,9.v,a c y 5 • . . -rte /G L Additional Sheets Attached u i 'f' r .:��; �;,; •d;• ';�; '�Pa#�, x r•S. t, �.- UIk��N[E . T�s • MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION Sedimentation Facilities , ilized Construction Entrance erimeter Runoff.Control ' .•iClearing and Graing Restrictions. Cover Practices Construction Sequence Other MINIMUM ESC REQUIREMENTS • R AFTER CONSTRUCTION S ze Et ilia5` xposed Surface Remove and Restore Temporary ESC Facilities Clean and Remove All Silt and Debris Ensure Operation of Permanent Facilities . Flag Limits of SAO and open space preservation areas Other 4 . till LIMITATION/SITE CONSTRAINT .5--/ / -_ r/�; 02 / Og ` /off • /,el 20 ' 3,� li .• • • • • . • • • luhviit;traFk4 U1 0;fi e • B ' ht-eirr• •IU ; ••ii . • -TY14, e System . : •• Energy - Open Channel - Wetland • • • . •• Pr; Pond • • • .. .• : Wet Pond • infiltration • Depression • Flow Dispersal Waiver Method of Analysis • Compensation/Mitigati on of Eliminated Site Storage Brief Description of System Operation '1 / e$ / "7 i Pp40 $20 Facility Related Site Umitations . , . . Reference • Facility • Limitation . . ifaiga tiP i lSTBUGTtgf*11 , ,M4LYSISI,LPPItt.izifm , . .Cast In Place Vault • Retaining Wall ROckery >14' High • • .e . • on Steep Slope dther • OFESS.IONAtilEISIG*18 .'.. . . . . 1 or a civil engineer under my supervision my supervision have visited the site Actual site conditions as observed were Incorporated Into this worksheet and the attachments. To the best of my knowledge the Informatioh•proyideci. here Is accurate; • • • . • • • • :'Skned/Date 2 . : 1,s" , • . • * •••••: • •••• •••• • • P ' "••. Easement Access Easement ' • •Native Growth Protection Easement ' Tract •Other • October 8, 2002 Bruce S. MacVeigh, P.E. Civil Engineer /Small Site Geotechnical 14245 59 Ave. S. Tukwila, WA 98168 Office: (206) 242-7665 Fax: Same Subject: Technical Information Report (TIR) for Scott Label 4 -Lot Short Plat, 4643 South 146th Street, Tukwila, WA 98168 (Revision) Table of Contents: Technical Information Report (TIR) Worksheet (attached as cover) Project Overview Conditions and Requirements Summery Off Site Analysis Flow Control and Water Quality Facility Analysis and Design Conveyance System Analysis and Design Special Reports and Studies Other Permits ESC Analysis and Design Bond Quantities, Facility Summaries and Declarations of Covenant Operations Manual Project Overview: The proposed project will divide and existing parcel of 0.90 acres into four residential lots with a minimum size of 0.17 acres. The site is located on the south side of S. 146th Street in the 4600 block. An existing residence is located at the north end of the parcel, and is to remain. The three new lots will be located south of the existing house and will have access to the street by a 20 foot wide paved private road. The existing site is level front to back, with a side slope to the east of about 5 percent. The existing ground cover is lawn and meadow. No significant trees are located on the site. The storm drainage system will collect flows from the three new houses, their driveways and from the private road. It will then be detained in an underground pipe and released to the public road system in S. 146th Street. Since no ditch or culvert system is available in front of the property, a 12 inch culvert with catch basins will be installed and run one parcel to the east to connect to an existing 12" culvert. • j Conditions and Requirements Summery: . Runoff from the new impervious areas will be detained and released using a modified Level 2 flow release rate. This will restrict release flows from the 2 -year to 25 -year storms to 50% of their predevelopment rate. Flows were analyzed using the current KCRTS system, which does not allow evaluation of a 50 -year storm in detention sizing, which would normally be included in the range of restricted 50% predevelopment rates considered. The non - inclusion of the 50- year storm has been determined as satisfactory by the City Senior Surface Water Management Engineer since further investigation indicates the downstream problem (discussed in detail below) is more of a maintenance problem than an actual capacity problem. Post development water quality factors were determined as not necessary for the z o small amount of increased vehicular surface contributed by this short plat. As an Lij incidental effect, the flow restrictor tee in the detention catch basin provides o some protection from road oils and accidental spills entering the system from o D- paved areas within the short plat. w o .. z w = . This downstream analysis is based on a Level 1 review. At present runoff from z the site flows via sheet flow entirely onto the parcel to the east. This parcel has a residence near the street, but the entire rear portion is used as a small tree nursery during wet weather, some ponding of water at the base of the small trees was noted. Due to the clay /till nature of the short plat site's soil, the runoff from the site impacts the neighboring site adversely. Off -Site Analysis: The proposed collection and routing of the site's runoff into the street system will improve the above effect on the neighboring property, in other words, their tree nursery area will no longer be flooded during the wet months of the year, a problem they had no remedy for prior to the proposed short plat and storm water diversion. The introduction of the additional water from the site will have some effects of the downstream conveyance system. A description of the downsteam . system into which the site's flows will be released follows. The water released from the site will enter a new Type 2 catch basin to be located in the street frontage. A new 12 inch line will then run east (downhill) approximately 140 feet into a new Type 1 catch basin. This catch basin is installed onto an existing 12 inch culvert under a private road entrance. The flows continue to the east approximately 600 feet in a series of roadside ditches 2 z Et w 0 U D CO III J = � U- W o gQ I w Z = and 12 inch culverts. The ditches are typically 3 to 5 feet wide and 2 feet deep and vegetated with established grasses and weeds. The condition of the ditches is good, but a cleaning and re- excavation should be done where silt has raised the bottom of the ditch above the inverts of the culverts. All culverts noted still had reasonable flow capacity. At the end of this section of S. 146th Street (a dead end), the flows enter 100 feet of broad irregular heavily vegetated ditch down the slope into the system in 51st Avenue S. This system consists of a series of 12 inch culvert lines and Type 1 catch basins running along the west side of the road. The flows along our route enter this system via a catch basin to the side of the road, the flows entering by the top grate. This irregular heavily vegetated section of ditch has been earmarked for improvement in the City 2003 construction program. At present leaves and other light debris wash down the open unmaintained ditch and occasionally cover the grate, requiring City crew attention. The proposed City improvement will culvert the ditch section and connect it directly to the roadside system in 51st Avenue S. This problem has not been designated as a "capacity problem" per se. This roadside system along 51st Avenue S. flows for approximately 500 feet as described, and beyond the limits of the 1/4 mile reach of this review. Since upon closer consideration, the downsteam problem discussed above is a mgintenance problem, not a capacity problem, a Level 1 downstream analysis, as provided, is appropriate. Based on the above downstream review, extraordinary detention requirements were not imposed on the development of the short plat site, however the use of the modified Level 2 release from site flows is used to mitigate changing the exit point of the on -site flows to the City system instead of continuing to flood the neighboring property to the east. Note that site surface water flows rejoin their original routing along the 51st Avenue S. corridor. The City Senior Surface,Water Management Engineer has approved the routing of site flows into the roadside system along the south side of S. 146th Street, since there is no other routing to dispose of the flows collected on site, and due to the flooding problem of the neighbor's tree nursery to the east. 3 z w 00 ( 0 LU cnw w • 0 U- _ W a = W I- zF- I- 0 Z t- p As referenced above, the flows from the impervious surfaces will be detained on o site in an underground 48" diameter CMP tank and is released at the 50% of 2- w year through 25 -year predevelopment rates. The method of analysis is KCRTS. ▪ 0 Calculations are attached. o ..z The site may be somewhat susceptible to groundwater movement, although the main problem on site is non - infiltration of upstream surface waters. The 1-- ~- proposed residences will not have full basements, but will have usual crawl spaces, protected by footing drains. The footing drains will drain, incidentally, into the storm system, which has enough depth to prevent back up into the footing system. Flow Control and Water Quality Facility Analysis and Design: Review of exemption criteria in the KCSWM manual, Chapter 1, Core Requirement 3, indicates that none of the eight categories of exemption are applicable to this project. The site was determined unsuitable for on -site infiltration of collected surface waters due to heavily clayed soils. The site does not infiltrate per "Review of Infiltration Report" written by Brian Hall, P.E. (geotechnical engineer) of HWA GeoSciences. This report reviewed and concurred with the original report prepared by Bruce S. MacVeigh, P.E. dated June 17, 2002. Because this site is not located in or near a sensitive area and because Mr. Hall indicated he visited the site and observed three re- opened test pits, and because his conclusions seem reasonable, Public Works accepts his conclusion that the site is not suitable for infiltration. Roof drains will drain into the on -site collection system via tight line. A sediment collection sump for each lot will prevent sediment entering the detention system. Major water quality measures are not warranted due to the small size of the site. Standard filter fence will be installed along all downhill property lines. Conveyance System Analysis and Design: The undetained 100 -year flow of the developed site is 1.14 CFS. The flattest 12 inch N -12 pipe is 0.50 %, with a capacity of 2.7 CFS. As such this and other lines on site are noted as having appropriate capacity, including minor 6 and 8 inch lines (by inspection). 4 t As discussed above, the collection and routing of site surface waters away from the neighboring tree nursery to the east will benefit them. During winter months their site experiences surface flooding which will be decreased or eliminated due to the routing of subject site's stormwater to the street system. Special Reports and Studies: Geotechnical Evaluation for the Purpose of Determining the Feasibility of the Use of Infiltration to Dispose of the Runoff Generated by the Development of the Scott Label 4 -Lot Residential Short Plat, date June 17, 2002, prepared by this office. Review of Infiltration Report, Proposed 4 -Lot Residential Short Plat, dated June 24, 2002, prepared by HWA Geo- Sciences, Inc. Other Permits: A street use permit will be needed to install the line and catch basins in S. 146th Street. ESC Analysis and Design: As noted above, the site is small and warrants only the normal placement of standard filter fence along the downhill property lines. Bond Quantities, Facility Summaries and Declaration of Covenant: A street use bond will be required for the street storm line construction work. A facility summary will be provided when the drainage plan has been confirmed, as well as an easement and mutual maintenance covenant for the on -site drainage system. Operations and Maintenance Manual: A facility operation /maintenance manual will be provided when the drainage plan has been confirmed and approved. 5 NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. S �07 2 � :2)., /, iv I W :: . _' S` 'It s leo 3 v , = • /0 ' x8 D i ' 0fr/ �` - 1 ..1 / i s - - / 7 ' c ' 1> zz 7'k.2c' (/vo7' : AEovfz. a/zt4 , . PAs7v,ez ) / - I C J . � ." - S 7. a;.. /ez54 7G 7,41 L ) r, - • _ , '!-% 7�a I = l � s ir: . 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ENT.,PANCi ..P4 A 4/E OD4'7 /DNS D.c' EX. .» /Y/ .A.r .PE44// E d • 20' .PDAD AND vriZ /r /ES ; EASE/VEN77 , , W. r ' 2 ' EASEMENT • 8 • .e IS'.e.Q 5/./OI/GD.Ch Z PAP /t/.4TE .WOAD .411 1�Y /.PED UT/L/r,es ' /N Cz: 77e4 Wl EIELT.t7C !4WD e,//T .7D/N71Y ay.r /ED ' WA7E, ' 3 eu /lE L /NES • r, existing garage. existing house ; T—•- -= ROAD 4 1177Z /T /ES .&'.4SE/76N7 ^ y proposed house Iocatlon 98.09' 1.26.23' r'v N RDAD WAY acv "Tr im:rt*'.,•rs 4=ziet fes-, •P;•.'�JY�a 1 t9 S� .2S'14147E4' 4, t " "kEflENT 58 \ 2652 126.25' N87'55 "W EX. — 3 L proposed location house AAM7 % EX. a- .PAD1c Q PRDP. L /NE proposed house location OD .000/ENNIME. WO OMMINIMI.NOM 00 SOME :• 28:1 3� /o PIAC .6 •.E'DP. •i "SSS C7> Ina z c Pass. a anj 4•M 'CM !a ail SECTION 3.2 RUNOFF COMPUTATION AND ANALYSIS METHODS FIGURE 3.2.2.A RAINFALL REGIONS AND REGIONAL SCALE FACTORS Np.sp,uRG, ST 1.1 9/1/98 • ST 1.1 ST 1.0 Rainfall Regions and Regional Scale Factors F Incorporated Area River/Lake — Major Road ST 1.0/ LA 0.8 ST 1.0/ LA 0.8 LA 0.9 LA 1.0 LA 1.2 SNOHOMISH COUNTY LA 0.9 LA 1.0 LA 1.2 1998 Surface Water Design Manual 3-22 Flow Frequency Analysis Time Series File:predev.tsf Project Location:Sea -Tac - -- Annual Flow Rate (CFS) 0.224 0.149 0.526 0.132 0.332 0.228 0.231 0.855 Computed Peaks Peak Flow Rates-- - Rank Time of Peak 6 2/09/01 12:30 7 1/05/02 15:00 2 12/08/02 17:15 8 8/26/04 1:00 3 11/17/04 5:00 5 10/27/05 10:45 4 10/25/06 22:45 1 1/09/08 6:30 Flow Frequency Analysis - - Peaks - - Rank Return (CFS) Period 0.855 1 100.00 0.526 2 25.00 0.332 3 10.00 0.231 4 5.00 0.228 5 3.00 0.224 6 2.00 0.149 7 1.30 0.132 8 1.10 0.745 50.00 C/7 Prob x %Z- 0.990 0.960 0.900 0.800 0.667 0.500 0.231 0.091 0.980 , 2(3 , /GG / / b 2 .6 - 4'.6"?.. z.. /P.#9 7E" S ( 1 - vt - r - . 0 X a° y f /;12 /i zs ... <.,...ua�cY,._,.c«: ` �W, i� §.�e.:.,m�:,...++.i :�'.J:�.us, 1a! siraw'•:u : a[ wi. �... �n.u.u4:..i:.ei�5:;x3inb:e"s:� V:Ci2�:.',:.�a�,:s:r_ t 4/a6 2 7 3 5 4 1 Peaks Flow Frequency Analysis Time Series File:dev.tsf Project Location:Sea -Tac - -- Annual Flow Rate (CFS) 0.295 0.233 0.752 0.236 0.444 0.377 0.418 1.14 Computed Peak Flow Rates-- - Rank Time of Peak 6 2/09/01 8 1/05/02 12/08/02 8/23/04 11/17/04 10/27/05 10/25/06 1/09/08 12:30 15:00 17:15 14:30 5:00 10:45 22:45 6:30 - - Peaks (CFS) 1.14 0.752 0.444 0.418 0.377 0.295 0.236 0.233 1.01 Flow Frequency Analysis - - Rank Return Prob Period 1 100.00 0.990 2 25.00 0.960 3 10.00 0.900 4 5.00 0.800 5 3.00 0.667 6 2.00 0.500 7 1.30 0.231 8 1.10 0.091 50.00 0.980 ��9 •Z • = F-i W . 2; W = U U) W W = J � W O. ga . d. = • W 2 ' Z I, Z O U � O1 = O; Z. • W • I .O F-, 'Z Retention /Detention Facility Type of Facility: Detention Tank Tank Diameter: • 4.00 ft Tank Length: ...084 ft Effective Storage Depth: 3.50 ft Stage 0 Elevation: 0.00 ft Storage Volume: 687. cu. ft Riser Head: 3.50 ft Riser Diameter: 12.00 inches Number of orifices: 1 Full Head Pipe Orifice # Height Diameter Discharge Diameter (ft) (in) (CFS) (in) 1 0.00 2.28 0.263 Top Notch Weir: None Outflow Rating Curve: None L Stage Elevation Storage Discharge Percolation (ft) (ft) (cu. ft) (ac -ft) (cfs) (cfs) 0.00 0.00 0. 0.000 0.000 0.00 0.02 0.02 0. 0.000 0.022 0.00 0.05 0.05 0. 0.000 0.031 0.00 0.07 0.07 0. 0.000 0.038 0.00 0.09 0.09 0. 0.000 0.043 0.00 0.12 0.12 0. 0.000 0.048 0.00 0.14 0.14 0. 0.000 0.053 0.00 0.17 0.17 0. 0.000 0.057 0.00 0.19 0.19 0. 0.000 0.061 0.00 0.29 0.29 0. 0.000 0.076 0.00 0.39 0.39 69. 0.002 0.088 0.00 0.49 0.49 89. 0.002 0.098 0.00 0.59 0.59 110. 0.003 0.108 0.00 0.69 0.69 131. 0.003 0.117 0.00 0.79 0.79 153. 0.004 0.125 0.00 0.89 0.89 175. 0.004 0.133 0.00 0.99 0.99 198. 0.005 0.140 0.00 1.09 1.09 221. 0.005 0.147 0.00 1.19 1.19 244. 0.006 0.153 0.00 1.29 1.29 267. 0.006. 0.160 0.00 1.39 1.39 291. 0.007 0.166 0.00 1.49 1.49 315. 0.007 0.172 0.00 1.59 1.59 338. 0.008 0.177 0.00 1.69 1.69 362. 0.008 0.183 0.00 1.79 1.79 385. 0.009 0.188 0.00 1.89 1.89 408. 0.009 0.193 0.00 1.99 1.99 431. 0.010 0.198 0.00 2.09 2.09 454. 0.010 0.203 0.00 2.19 2.19 476. 0.011 0.208 0.00 2.29 2.29 498. 0.011 0.213 .0.00 2.39 2.39 520. 0.012 0.217 0.00 2.49 2.49 540. 0.012 0.222 0.00 2.59 2.59 560. 0.013 0.226 0.00 2.69 2.69 580. 0.013 0.231 0.00 dY 6:4 7 de 'O ` ' _ - J CO -4 pl c W N H' 'G (D (D N H CnCP ul c.n ul 0N. 0. 0.A..C.0..p W W W W 4) W W W 0) W NNN 0 0 0 0 0 0 0 1- Ht C/1 0. 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FOR n . 0.0 /2 OR. / . = 0.024 - 1.5 - 2.0 Woo -3.0 - 4.0 - 5.0 6.0 7.0 -8.0 - 20.0 - 10.0 - 40.0 a Table of Contents: Operations of System Inspection Checklist October 8, 2002 Operation and Maintenance Manual for Stormwater Collection and Detention System Scott Label 4 -Lot Residential Short Plat 4643 S. 146th Street, Tukwila, WA 98168 (File No: L01 -034) Prepared by Bruce S. MacVeigh, P.E. Civil Engineer/Small o S ite Geotechnical 14245 59 Ave. S. Tukwila, WA 98168 Office: (206) 242 -7665 Fax: Same RECEIVED CITY OF TUKWILA OCT ` 9 200' PERMIT CENTER YA..un�:vt e:S3::.iiui:r.t>.:.i.nai:1N t::ww+tiJ.+.w. •�• _ n.. fn .i..i:,.a�:.+l.•r::ni.4e;nv4.fv '444.N:A 4$4:49a.:adJ“::. „ua.. Operation and Maintenance of Short Plat Storm System The operation of both the common and individual lot portions of the system is simple and requires only occasional inspections and maintenance procedures. Attached within this manual is a set of checklists with scheduling and maintenance requirements. The commonly maintained storm system consists of a series of catch basins and a large 48 foot long 48" diameter stormwater detention tank, with one large 54" diameter catch basin at each end. A restrictor tee with orifice is located in the large catch basin to the north. The detention portion of the system collects and releases storm water from the private road surface and from the individual house driveways and roof tops. It is the joint responsibility of all of the homeowners to inspect, clean and maintain this part of the system. The handling of this joint responsibility is spelled out in the storm drainage easement recorded with the original short plat. The water from the individual driveways and roof tops passes through a sediment control sump, one of which is located on each individual lot. The inspection, cleaning and maintenance for this sump is the same as for catch basins, and is each homeowner's individual responsibility. Note that along with each lot's sump, the house downspouts and gutters should be checked and cleaned each year, or more often. Doing this will also reduce the work in cleaning out the sediment sump for each lot when the time comes. Details for the overall system's inspection and clean out, for both floating debris and sediment in the bottom of all catch basins and detention tank, are given in the attached checklists, along with maintenance items which may affect the system's proper operation. Note that some things apply only to the individual lot portions of the system, some apply to the commonly maintained portion of the system, and some apply to both. Questions about inspection and maintenance of this facility may be directed to Bruce S. MacVeigh, P.E., Civil Engineer, (206) 242 -7665. INSTRUCTIONS FOR USE OF MAINTENANCE CHECKLISTS The following pages contain maintenance needs for most of the components that are part of your drainage system, as well as for some components that you may not have. Ignore the requirements that do not apply to your system. You should plan to complete a checklist for all system components on the following schedule: 1. Monthly from November through April 2. Once in late 'summer (preferable September) 3. After any major storm (use 1 -inch in 24 hours as a guideline), items marked "S" only. Using photocopies of these pages, check off the problems you looked for each time you did an inspection. Add comments on problems found and actions taken. Keep these "checked" sheets in your files. Some items do not need to be looked at every time an inspection is done. Use the suggested frequency at the left of each item as a guideline for your inspection. REQUIRED ACTIONS: The following actions shall be taken to ensure that pollution generated on site shall be minimized: z z u6 J U 0 0 w= J f- w w 3. Sediment removed from detention vaults shall be disposed of in a proper manner. Contact the Municipality for instruction prior to completing this task. 1. Warning signs (e.g., "Dump No Waste - Drains to Stream ") shall be painted or embossed on or adjacent to all storm drain inlets. They shall be repainted as needed. Contact the Municipality regarding availability of stenciling supplies. 2. Parking lots shall be swept when necessary to remove debris and, at a minimum, twice a year. Use of newer model high - velocity vacuum sweepers is recommended as they are more effective in removing the more harmful smaller particles from paved surfaces. g Q co 4. No activities shall be conducted on site that are likely to result in short -term high- I w concentration discharge of pollution to the stormwater system. Such activities may z � include, but not be limited to, vehicle washing, vehicle maintenance, and cleaning of z 0 equipment used in the periodic maintenance of buildings and paved surfaces. w • w U� O - O I- 111 w • U F- - U. o ..z w U = ' O ▪ ~. 5. Employees shall receive basic instruction regarding the control of pollution from commercial operations. Contact the Department of Ecology or the City of Tacoma Stormwater Source Control Program at (206) 591 -5588 for assistance in completing this task. • •,.., >w >:i.144,04. .idc ..prA i' — D40;4;• • z Frequency Drainage - Systems . Feature 1/ / • Problem Conditions To Check For Conditions That Should Exist M Structure Trash & debris (includes sediment) ' Distance between debris buildup and bottom of orifice plate is less than 1 -112 feeL All trash and debris removed. A • Structural damage Structures are not securely attached to manhole wall and outlet pipe structure should support at least 1,000 pounds of up or down pressure. Structure securely attached to wall and outlet pipe. A Structure is not in upright position (allow up to 10% from plumb). Structure in correct position. A • • Connections to outlet pipe are not watertight and show signs of rust Connections to outlet pipe are watertight; structure repaired or replaced and works as designed. M Any holes -other than designed holes -in the structure. Structure has no holes other than designed holes. M,S . Cleanout gate Damaged or missing Cleanout gate is not watertight or is missing. . Gate is watertight and works as designed. A Gate cannot be moved up and down by one maintenance person. Gate moves up and down easit and is watertight M,S - Chain leading to gate is missing or damaged. • Chain is in place and works as designed. A - • Gate is rusted over 50% of its surface area. Gate is repaired or replaced to meet design standards. M,S • Obstructions Any trash, debris, sediment, or vegetation blocldng the plate. • Plate is free of all obstructions and works as designed. • M,S Overflow pipe Obstructions Any trash or debris blocldng (or having the ootential of blocking) the overflow pipe. Pipe is free of all obstructions and works as designed. ATTACHMENT "A" (CONTINUED) Maintenance Checklist for Control Structure /Flow Restrictor (Structure that controls rate at which water exits facility) If you are unsure whether a problem exists, please contact a Professional Engineer. Comments: ; Ken. A= Annual (March or April preferred) M= Monthly (See schedule) S =After major storms (use 1 -inch in 24 hours as a guideline) J- 17 z _I- w FY 00 c O J F- N IJ WO u_ Q d = W Z � i- O uj Z I— W U � O N O 1- W W I • Z U= O ~ z Frequency Drainage System Feature / Problem Conditions To Check For Conditions That Should F M,S, • General Trash, debris, and sediment in or on basin Trash or debris in front of the catch basin opening is blocking capacity by more than 10% No trash or debris located immedatety in front of catch basin opening. Grate i kept clean and allows water to enter. M Sediment or debris (in the basin) that exceeds 1/3 the depth from the bottom of basin to invert of the lowest pipe into or out of the basin. No sediment or debris in the catch basin Catch basin is dug out and clean. . • M,S • Trash or debris in any inlet or pipe blocking more than 1/3 of its height. Inlet and outlet pipes free of trash or debris. M Structural damage to frame and/or top slab Corner of frame extends more than 3/4 inch past curb face into the street (if appUcabte). Frame is even with cum. M • Top stab has holes larger than 2 square inches or cracks wider than 1/4 inch (intent is to make sure all material is • running into the basin). Top slab is free of holes and cracks. • M Frame not sitting flush on top slab, i.e., separation of more than 3/4 inch of the frame from the top stab. Frame is sitting flush on top slab. A . . Cracks in basin walls/bottom • Cracks wider than 1/2 inch and longer • than3 feet, any evidence of soil particles entering catch basin through cracks, or . maintenance person judges that structure is unsound. Basin replaced or repaired to design standards. Contact a professional engineer for evaluation. A Cracks widei than 1/2 inch and longer • than 1 foot at the joint of any inlet/outlet pipe or any evidence of soil particles entering catch basin through cracks. No cracks more than 1/4 inch wide at the joint of inlet/outlet pipe. Contact a professional engineer for evaluation. A Settlement/ misalignment • Basin has settled more than 1 inch or has rotated more than 2 inches out of alignment. Basin replaced or repaired to design standard Contact a professional engineer for evaluation. M,S • Fire hazard or other pollution Presence of chemicals such as natural gas, oil, and gasoline. Obnoxious color, odor, or sludge noted. No color, odor, or sludge. Basin is dug out and clean. M.S Outlet pipe is clogged with vegetation Vegetation or roots growing in iniet/outlet pipe joints that is more than six inches tall and less than sic inches apart. No vegetation orroot growth present Comments: Key: Maintenance Checklist for Catch Basins and Inlets ATTACHMENT "A" (CONTINUED) If you are unsure whether a problem exists, please contact a Professional Engineer. A= Annual (March or April preferred) M= Monthly (see schedule) S =After major stones (use 1 -inch in 24 hours as a guideline) = ":. v.Vk:S'w:w Z 4 = Z W o iJ 0 co W H CD LL W co d = W Z I— O Z I— W • W n O - D I— W W 2 I— H tL O Z W U = O Z Frequency Sege Feature , Problem Conditions to Check For Conditions That Should Est M,S ' Pipes Sediment & debris Accumulated sediment that exceeds 20% of the diameter of the pipe. Pipe cleaned of an sediment and debris. M Vegetation Vegetation that reduces free movement of water through pipes. All vegetation removed so water flows freely through pipes. A Damaged (rusted, bent, or crushed) Protective coating is damaged: rust is causing more than 50% deterioration to any part of pipe. • Pipe repaired or replaced. M • My dent that significantly impedes flow (i.e., decreases the cross section area of pipe by more than 20%). Pipe repaired or replaced. M .. Pipe has major cracks or tears allowing groundwater leakage. Pipe repaired or replaced. M,S Open ditches . Trash & debris . • Dumping of yard wastes such as grass cb ppings and branches into basin. Unsightly accumulation of nondegradable materials such as glass, plastic, metal, foam, and coated paper. Remove trash and debris and dispose as prescribed by the Municipality. . M Sediment buildup Accumulated sediment that exceeds 20% of the design depth Ditch cleaned of all sediment and , debris so that it matches design. A Vegetation Vegetation (e.g., weedy shrubs or saplings) that reduces free movements of water through ditches. Water flows freely through ditches. Grassy vegetation should be left alone. M Erosion damage to slopes See Ponds Checidist. See Ponds Checklist. A Rock Ening out of place or missing (if applicable) Maintenance person can see native soil beneath the rock lining. Replace reeks to design standard. Varies Catch basins See Catch Basins Checklist, See Catch Basins Checklist M.S Swales Trash & debris See above for Ditches. See above for Ditches. M Sediment buildup See above for Ditches. Vegetation may need to be reptantec after cleaning. M Vegetation not growing or • overgrown Grass cover is sparse and seedy or areas are overgrown with woody vegetation. • Aerate soils and reseed and mulch bare areas. Maintain grass height a a minimum of 6 inches for best stonnwater treatment. Remove woody growth. recontour, and reseed as necessary. M,S Erosion damage to slopes See Ponds Checklist. See Ponds Checklist. M Conversion by homeowner to incompatible use Swale has been filed in or blocked by shed, woodpile, shrubbery, etc. If possible, speak with homeowner and request that swale area be restored. Contact the Municipality 1 to report problem if not rectified voluntarily. ATTACHMENT "A" (CONTINUED) Maintenance Checklist for Conveyance Systems (Pipes, Ditches, and Swales) 7 - 25 . Z < • = Z f— 6 0 0 tri J= t M u_ w co d I W Z 1- 0 Z I— LU W D 0 0- 0 1- W W I F- H tL O Z W 0 - 0 Z IIIIsYs T A • . Swale does not drain Water stands In swale or flow velocity Is very slow. Stagnation occurs. A survey may be needed to check grades. Grades need to be in 1.5% range if possible. If grade is less than 1% underdrains may need to be installed. f you are unsure whether a problem exists, please contact a Professional Engineer. Comments: Key: A= Annual (March or April preferred) M= Monthly (see schedule) S =After major storms (use 1 -inch in 24 hours as a guideline) Z I I- ;t- W . 0 O . w W = --I F. cn u. . t u 0 u_ Q V) I— 11 z Z t— t= 0 Z w n 0 o 0 h- = t- r _- . 11 3 H =s Z Frequency Drainage • System • Feature / V Problem Conditions to Check For Conditions That Should Exis: • One Time" . General No access road exists It ponds or other drainage system features needing maintenance by motorized equipment are present, either an access road or access from public streets is required. Determine whether an easement to drainage feature exists. If yes, obtain the Municipality permits and construct gravel (or equal) access road. If not, report lack of to the Municipaolity. . M • Blocked Roadway Debris which could damage vehicle tires (glass or metal). , Roadway free of debris which could damage tires. A Any obstructions which reduce clearance above road surface to less than 14 feel Roadway overhead clear to 14 fee: • high. A Any obstructions restricting the access to less than 15 feet width. Obstruction removed to allow at least a 15 -foot -wide access. A,S Road Surface Settlement, potholes, mush spots, ruts When any surface irregularity exceeds 6 Inches in depth and 6 square feet in area. In general, any surface defect which hinders or prevents maintenance access • Road surface uniformly smooth with no evidence of settlement, potholes, mush spots, or ruts Occasional y . application of additional gravel or pitrun rock will be needed. M • Vegetation in road surface Woody growth that could block vehicular access. Excessive weed cover. Remove woody growth at early stage to prevent vehicular blockage. Cut back weeds if they begin to encroach on road surface. M,S Shoulders and ditches Erosion damage Erosion within 1 foot of the roadway more than 8 inches wide and 6 inches deep. Shoulder free of erosion and matching the surrounding road. Comments: Key: ATTACHMENT "A" (CONTINUED) Maintenance Checklist for Access Roads/Easements If you are unsure whether a problem exists, please contact a Professional Engineer. A= Annual (March or April preferred) M= Monthly (see schedule) S=After major storms (use 1 -inch in 24 hours as a guideline) 7 -28 z T • W fL' 2 0 CO 0 co w Ill_ i- w Q Cn 2 I— Z = F- Z I- • 0 O N CI I— W w u. O .. Z O ~ Z is Waal evpi „am OEN eta kIMMIt L.i August 30, 2002 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 RE: Label 4 -Lot Short Plat (L01 -034) at 4643 S. 146th, Tukwila Dear Mr. Label: We have completed a detailed review of the revisions you submitted on August 9, 2002 in connection with the above - referenced Short Plat application. Certain additional information is needed from you to ensure that the project meets the substantive requirements of the City and to complete our review process. We have the following comments: Short Plat Comments — Public Works: 1. Please see Public Works' review comments and enclosures dated August 26, 2002 (attached). If you have any questions regarding Public Works comments, please contact Jill Mosqueda, Associate Engineer at 206 -433 -0179. Short Plat comments - Planning: City of Tukwila Department of Community Development Steve Lancaster, Director 2. The plat shall indicate house orientation on each lot (i.e., label front, sides and rear). Steven M. Mullet, Mayor You have highlighted this information in hand written format on Sheet 2 of 2 of the Short Plat. However, please be advised that as a condition of any preliminary approval you must have this information properly printed on the mylar you wish to record. 3. Richard Schroeter's license expires on March 23, 2002. Please revise all plans to show a new expiration date. This correction has not been made and will be a condition of any preliminary approval. Short Plat Comments — Fire Department: 4. The future houses on Lots 3 and 4 will be required to provide interior sprinklers. This requirement shall be stated on the face of the plat and must be met prior to the issuance of any building permits for Lots 3 and 4. You have highlighted this information in hand written format on Sheet 2 of 2 of the Short Plat. However, please be advised that as a condition of any preliminary approval you must have this information properly printed on the mylar you wish to record. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Short Plat L01 -034 August 30, 2002 Page 2 Next Step: Upon receipt of all of the documentation requested in Item 1 above, we will continue processing your Short Plat application. If you have any questions regarding Public Works comments, please contact Jill Mosqueda, Associate Engineer at 206 -433 -0179. If you have any questions regarding Planning comments, please contact me at 206 -431 -3663. Sincerely, Deborah Ritter Senior Planner cc: Jill Mosqueda, Public Works Lt. Don Tomaso, Fire Department z i 1— w rt 6 _i 00 to U) w w = LL w O } . J , u_? w z � �- w 11.1' U w w 2 U- H, O - F - O ~. z Project Name: Label Short Plat 4643 S. 146 Street File #: L01 -034 Response to Comment Letter #3 Date: 08.26.02 Reviewer: L. Jill Mosqueda, P.E ✓`(' The City Of Tukwila Public Works Department has the following comments regarding your application for the above permit. Please contact Jill Mosqueda at (206) 433 -0179, if you have any questions regarding the following comments. Short Plat Map PUBLIC WORKS PROJECT REVIEW COMMENTS 1. Remove handwritten comments regarding storm drainage. 2. Show easements (Plans 1. The plans shall include plan, profile, cross sections and typical details for piping, culvert and catch basin(s) in the row. 2. Include City of Tukwila Construction Notes. Bulletin attached. 3. On sheet 2/3: • The access road profile shows the low point at 1 +50, which is not the center of the turn around as shown on sheet 1/3. Place the low point of the road so it flows into the catch basin locted in the turn around. • Provide a cross section of the turn around. • The Flow restrictor diameter "D" should be clearly stated in the notes. Projects /short plat /label 101 -034 comm 4 CITY OF TUKWILA 1 Submittals You must provide the following with the Miscellaneous Application: 1. For each easement, maintenance agreement, covenant, etc., provide documents which include a legal description of the easement, which parcels (not lots) the documents apply to, responsible parties, purpose of document (access easement, maintenance agreement, etc.), a drawing. The King County Surface Water Design Manual (KCSWDM) has sample documents in its "Reference" section, which may be helpful. These will need to be recorded before or with the short plat recording. 2. For work in the right -of -way (row), catch basin, pipe, culvert: • Any excavation in the City right -of -way requires a performance bond for 10% of the work or $2000, whichever is greater. Applicant shall provide a copy of the estimate for the work being permitted. • Permittees performing work within City right -of -way shall provide the City a $1,000,000 liability insurance policy certificate with the City named as additional insured. z ce J U 00 N J w g co = a F- w Z = ro Z ~ • Miscellaneous Permit Application - Complete all fields, including o signature and date. o D : O 1- wW LLo w z U= o � 3. For hauling: • Certificate of Insurance - Provide a copy of Certificate of Liability Insurance for $1,000,000, showing City of Tukwila as Additional Insured. The City requires proof of insurance for each hauling permit application. • Route Map - Provide four (8 -1/2 "x11 ") copies showing the entire route which is within City limits. For copyright reasons, the City can not accept Thomas Guide reproductions. • $2000 Bond - Provide a cash indemnity bond, surety bond or cashier's check to ensure cleanup and repair of any property damage. The bond shall require a thirty -day written cancellation notice. • Contractor's License - Provide a copy of the license issued by Department of Labor & Industries. • Materials Description - Provide description of all materials being hauled and include the quantity. • Start Date and Time - Provide approximate start date, start time and duration of hauling. You must provide the following BEFORE final approval of the Miscellaneous permit: 4. Installation of piping and catch basin in row requires turnover of these items to the City. The City expects as -built drawings and completed turnover documents before the final approval for the short plat. Please Projects /short plat/label 101 -034 comm 4 2 z refer to the record drawing /as -built excerpt from the City's revised infrastructure manual and the turnover packet, both enclosed. Storm Drainage Review' Overall Comments • This project requires full drainage review, Level 1 flow control and additional flow control. • The design and the Technical Information report must satisfy all 8 core requirements. The Technical Information Report (TIR) and therefore, the storm drainage design, provided on August 9, 2002, do not meet the King County Surface Water Design Manual requirements. Please refer to Chapter 2, pg. 2 -8 for TIR requirements. The following comments refer to the TIR and the storm drainage design on the site plan. • Number the pages in the TIR. City Estimates Total site Approx. 39130 SF Developed Conditions: Total impervious surface Approx. 14700 SF Pollution generating impervious surfaces (PGIS) Approx. 8900 SF Pollution generating pervious surfaces (PGPS) Approx. 25000 SF NOTE: pg. 1 -36 Sizing credits do not apply when calculating impervious surface for Core Req. #3. Sizing credits do apply when modeling for the retention volume. NOTE: pg. 1 -35 Model subdivision as impervious and grass. As if totally built out. Core #1 Discharge at natural location 1. Applicant collecting water which usually runs southerly onto neighbors and diverting it to collection system which outlets to the ditch in S. 146 St. TIR must discuss affect to neighbors and shall explain why the discharge is not at a natural location. Projects /short plat /label 101 -034 comm 4 3 -1 �, i•: isoi': ii: w' �. isi�La�i�. �: R': iirii:,' iiiaivsi'+' k."' tKa%& ' wv�:%: f.' ifbSlkiv 'iys�si�ri.'.4:r<�m`t',:"ix' z Z 6 • 2 .J O 0 coo J = co LL w g Q. = • a 1- al z � • o w ~ uj p U O � O I-- w L .. w z - I O ~ z romromi 411111 Ina 1:12; •r� . v � x. Livrirai Core #2 Offsite analysis 1. Threshold areas not defined. Provide a map showing threshold discharge areas. 2. Downstream conveyance problem identified, but not located nor evaluated. TIR does not say if conveyance system nuisance problem occurs at less than or equal to 10 -year runoff events. (p1 -20) z ~ re 2 6 --1 . O 0 co o J • = w • 0 2. All threshold areas must provide flow control. Can't tell by report if there g is more than one threshold area. Refer to threshold areas map (Core #2) and address this issue in the TIR. N a 3. Please refer to L1 Flow Control with additional control (pg. 1 -26). There Z is a documented downstream conveyance system nuisance problem, o which must be defined in Core Req. #2. The TIR shall show that the flow w w control design matches 2 yr. and 10 yr. peaks and hold 10 -yr. peak to w overflow T peak. To determine T Applicant must perform a minimum level 2 analysis (2.3.1.1). Applicant needs to provide additional control o (T or to mitigate per pg. 1 -22 and 3.3.5. w w 0 3. TIR shall note that Ryan Larson, Sr. Surface Water Engineer, approves u. o added load to existing downstream problem under the following w z conditions: o Core #3 Flow Control 1. TIR should note if any of exemptions 1 -8 apply. • Applicant has no discharge location other than the public conveyance system in S. 146 St. • Applicant must provide additional flow control per Pg. 1 -26 per KCSWDM. • City has planned a CIP that will accommodate additional load. Chapter 5 Flow Control Design 1. Exemptions • TIR must state: Project does not qualify for exemptions (Core #3 and pg. 5 -13) 2. Flow Control BMPs comments: • TIR must address infiltration: The following statement is acceptable to the City for inclusion in the TIR: "Site does not infiltrate per "Review of Infiltration Report" written by Brian Hall, geotechnical engineer, of HWA GeoSciences. Because this site is not located in or near a sensitive area and Projects /short plat /label 101 -034 comm 4 4 � " F xr y w.garar�?w _ -wra y VOIC" + n. x...,.,..>,.N. o. ,. ,x..�r....,.,.,,....n..r.�.�.,A z • because Mr. Hall indicates he visited the site and observed three reopened test pits, and because Mr. Hall's conclusions seem reasonable, Public Works accepts Mr. Hall's conclusion that the site is not suitable for infiltration. " • Please address the use of Modular grid pavement (p5 -17) as a flow control BMP. Please include in your design, if possible. 3. Why is there a gravel shoulder in an easement shown on the plans? If gravel shoulder is intended for dispersion, please remove it. The plan shown and the site conditions do not meet requirements for dispersion. 4. Please clarify, in the TIR, if the roof drains are tight -lined to the yard drains and if yard drains are tight -lined to the catch basins and detention pipe. Are these lines supposed to be installed in trenches per Section A on pg. 5 -7? If so, please indicate so in the TIR and add a note and Section A from KCSWDM to the site plan. Chapter 5.3 Detention Facilities z o 1. The KCSWDM allows underground detention tanks and underground ? o detention vaults. Explain item 10 on sheet 1/3 called a detention pipe. o N Is this supposed to be a detention tank per pg. 5 -33? If so, the design o does not meet the design criteria for tanks. Please refer to 5 -33. w w Specifically the design does not provide the following: E H 1 • Manholes in line w z. co 0 0 z • Minimum diameter 36" • Acceptable material (not ADS N -12) • Buoyancy calculations • Access requirements • Setbacks per Section 4.1 2. A frop -T may function as outlet control, but provides only incidental oil /water separation. Please remove the comment in the TIR that suggests the frop -t serves a water quality purpose. 3. The detention storage outflow provided using the KCRTS is incorrect. The outflow sizing shall meet the 2 -yr. target outflow of 0.22 cfs 4. The outlet shall be sized for the 25 -yr. and 100 -yr. outlet capacity. TIR must include sizing calculations and the diameters shall be shown on the typical detail on the plan sheet. Projects /short plat /label 101 -034 comm 4 5 z � 00 U) o J H Core #4 Conveyance System 1. Needs conveyance system design to discharge at ditch, channel, etc., which meets pg. 1 -17 thru 1 -18 and Chapter 4. Methods of analysis in Chapter 4. Applicant shall include in TIR. z NEW ONSITE ~ w ce J U U ID LIJ J = U) u_ w • TIR shall include conveyance capacity analysis of existing drainage g in S. 146 St. n Interflow _ z � zo w • w U � o 9- D I- • Water from site is collected, concentrated and then released into w • w the ditch on S. 146 St. TIR shall discuss possible effects on the neighbors and the adjacent neighbor's use of her property. z 0 • TIR shall include pipe capacity calculations for conveyance and containment for 25 -yr. peak • At catch basins, conveyance system may overflow 100 -yr. (p 1 -31) TIR and plans shall show how overflow will be contained onsite. Refer to KCSWDM. EXISTING OFFSITE Projects /short plat /label 101 -034 comm 4 Pipe Systems • Add to the storm drainage notes: Per Ryan Larson, based on knowledge of surrounding area , there may be significant seepage and springs on this site,. The TIR shall discuss how interflow will be addressed, if it should occur onsite. (Pg. 1 -42) Chapter 4 Conveyance Design • TIR shall include analysis of downstream problem at Macadam, so the effect on the downstream can be evaluated. • TIR shall evaluate whether or not the existing conveyance system has the capacity to carry the additional flow (pg. 4 -54 and pg. 4- 59). TIR shall discuss effects on existing conveyance system in S. 146 St. Easement and setback • The storm drainage easement shown on the site plan is confusing. Why is the easement 30' in one section? Why is there storm drainage shown outside the easement? Please improve the easement depiction on the plan sheets. • Provide recordable easement and maintenance documents for review by Public Works. The easement /covenant shall include a drawing showing the SD system and easement. Refer to examples in the Reference section of KCSWDM. The Permittee shall record the easement and maintenance documents at King County Records when the final short plat is recorded. 6 z Core #5 ESCP Core #7 • Not applicable " Pipe material, joints, protective treatment per 9.05 WSDOT /APWA and the KCSWDM." • Provide design calculations performed to size the pipe system. Refer to pg. 4 -5 thru 4 -11. Refer to pg. 4 -17 thru 4 -27. Show that the design meets the 10 yr. and 25 -yr. Capacity requirement. Outfall • Tightline to Catch Basin in S. 146 St. OKAY Culvert • The TIR shall include the design for the culvert. The design shall meet KCSWDM criteria in 4.3.1, analysis on pg. 4 -37. The culvert diameter shall be less than or equal to 18 ", have a headwater from invert that is less than 2 times the diameter at 10 yr. and 25 yr. (1.2.4). The maximum headwater shall be below road or parking subgrade. And the Inlet/outlet shall be flush with and conform to the slope. z _I- '~ w o: - Io 00 (0 0 w= J w u_ a • a z F = . 1-0 Z ~ • Plan does not include the following minimum requirements: Does not • o show clearing limits, cover measures, sediment retention, surface o cn water controls, dust control. Plans provided are missing the City's 01— standard notes for ESCP. _ 0 `I o z Core #6 Maintenance and operations id • Maintenance per Appendix A not included. Please provide z 1- maintenance and operations for private facilities (pg. 1 -46) and the Reference section. Core #8 Water Quality Estimates Total site approximately 39130 SF Developed Conditions: Total impervious surface Approx. 14700 SF Pollution generating impervious surfaces (PGIS) Approx. 8900 SF Pollution generating pervious surfaces (PGPS) Approx. 25000 SF Projects /short plat /label 101 -034 comm 4 7 • Per KCSWDM, "All proposed projects, including redevelopment projects, must provide water quality (WQ) facilities to treat the runoff from new and /or replaced pollution generating impervious surfaces and pollution generating pervious surfaces." • The TIR and the site plan shall discuss and meet the requirements in Core #8. (Core #8 pg. 1 -49 and Chapter 6) . TIR shall provide an analysis of WQ needs for this site. The TIR shall address all ,pertinent points given in Core #8 and Chapter 6. Please note: a frop -t provides insignificant WQ. Projects /short plat/label 101 -034 comm 4 8 r i• , ':iC. - `jI'r ; '• ? <- ,d'I "'i pa �:` ijoa :u.r. t': rt S . i -.:. Fatt:S 'SIT .C l j' ND I[� <<; Y:.: • Community • - a.S . 7:45%2- Drainage Basin. ,CA6,;� P . • o c.•1,- I?art3 tEFt i? b EC w- E t �€ ∎PEt 0 E EE t>f:j ' ; ;u. Project Owner, - Sere 7 7 G✓f�.4c Address 4 ?2 5, /4'6 t - S"7 Phonev,� (.4..i7e A� L..)10- 9A /6 6 ' . (7oC) 243- ei725 P jject Engine v, Gel „pat ty /424S S ?'/9/'. S 7'v�s�tt A &.i 76-Y 68 )' Address /Phone ' 6\ Z9 Subdivison C ho ubdivision Grading Commercial Other King County Department of Development and.Environmental Services TECHNICAL INFORMATION REPORT (TIR) WORKSHEET River Stream Critical Stream Reach Depressions /Swales .Lake. Lake... 4 RQ C [ T E R I SZ Steep Slopes ' • • Project Name .S�o » l"sto a7 S / /C.,2 7 Pe it Location Township Range /V Section DFW HPA COE 404 DOE Dam Safety FEMA Floodplain COE Wetlands Shoreline Management Rockery Structural Vaults Other Floodplain .Wetlands Seeps /Springs High Groundwater Tab { SC'f' / 'Groundwater Recharge Other rtEcciv>`- CITY OF TUKWILA AUG 0 9 2002 PERMIT CENTER .44 Additional Sheets Attached Soil Type. Slopes • Erosion Potential Erosive Velcoties S" • • • Additional Sheets Attached REFERENCE Ch. 4— Downstream Analysis LIMITATION/SITE CONSTRAINT 1/47. 5. & z5e-rs (sf. z ;"/ Z/S • 1-. Z 1 ; / 5 . D X 4 MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION Sedimentation Facilities • • L.-St6ifigd Construction Entrance ;Pcc --- imeter Runoff Control ' Clearing and Graing Restrictions. • Cover Practices Construction Sequence Other • • MINIMUM ESC REQUIREMENTS • AFTER CONSTRUCTION c....StggEacposed Surface Remove and Restore Temporary ESC Facilities Clean and Remove All Silt and Debris Ensure Operation of Permanent Facilities Flag Limits of SAO and open space preservation areas Other A 4 ii:ii:843 ii$,4 i t :r't: , i :iil?ttFStOil.J... i'.2 �Ii ilis1P.i ra:q.i:c if.Sy: •' :a Ff • i ./x //�'7 E Y E I.. �[ } y p � { • S ;r I jni {i ti'q'? L C.•� 1:,3:,5.. 1K' r �:ICtlti 'Grass•Uned . Channel c_Rif‘6;stem • Open Channel Dry Pond Wet Pond • Brief Description of System Operation; Facility Related Site Limitations Reference Facility Vault ' . Energy Dissapator Wetland Stream Infiltration Depression Flow Dispersal Waiver • Limitation ji ��' �oA/> .5/) t Method of Analysis Compensation/Mitigati on of Eliminated Site Storage etention 5/ 7' 72) , -erc v` ?ii :l:bF:r3ra,3h�rY:J: acs: y.::•, tF�, 1;, I: ..rA�,•;��il:l7ift:�;i: "':':j+. ,� '3P 1 ja$�%f u�J�E ' $ls i`; tw33H, '�3irn �..�.1,:: �: ,i..��;.._�.'�•;`.,,5 �_, � rq?t :T."... t., t?..t Cast In Place Vault Retaining Wall Rockery > 4' High .Structural on Steep Slope Other ai •��. ... � .., ...:rf; :.�: :tr:•.•: :C {: S:.:tni;'i �t:J:, :u'ar -:;. :: r..�..:es •::.;. .,: r • ' � � � 1 'ii :' .••• t: -: i ! t iF,;;; fsS GN I U !.0 71:;1OF t 1%#l G1NE ( ) 'i7, _.r . t +.:} �a.,.i'. t: ?:ir �.i`}; C : r �:j;•.. i:.w)� / I or a civil engineer under my supervision my supervision have visited the site. Actual site conditions as observed were incorporatedinto this worksheet and the attachments. To the best of my knowledge•the Information provided here Is accurate. • .Signed/Date " y'- ��;A`I.�[F.` :ilFt:St� :'7��. ''ai^i::?'. .t3 .f �hl t::•t' ...::4:1. ...r i rainage Easement Access Easement Native Growth Protection Easement Tract Other f/✓ L , z w cc 6 JU 00 co -I � w 2 u. � t- Z I- 1- 0 Zr w uj 0 U O ' . 0 H. w W u' O Z w U= O ~. z July 31, 2002 Bruce S. MacVeigh, P.E. Civil Engineer /Small Site Geotechnical 14245 59 Ave. S. Tukwila, WA 98168 Office: (206) 242 -7665 Fax: Same Subject: Technical Information Report (TIR) for Scott Label 4 -Lot Short Plat, 4643 South 146th Street, Tukwila, WA 98168 Table of Contents: Technical Information Report (TIR) Worksheet (attached as cover) Project Overview Conditions and Requirements Summery Off Site Analysis Flow Control and Water Quality Facility Analysis and Design Conveyance System Analysis and Design Special Reports and Studies Other Permits ESC Analysis and Design Bond Quantities, Facility Summaries and Declarations of Covenant Operations Manual Project Overview: The proposed project will divide and existing parcel of 0.90 acres into four residential lots with a minimum size of 0.17 acres. The site is located on the south side of S. 146th Street in the 4600 block. An existing residence is located at the north end of the parcel, and•is to remain. The three new lots will be located south of the existing house and will have access to the street by a 20 foot wide paved private road. The existing site is level front to back, with a side slope to the east of about 5 percent. The existing ground cover is lawn and meadow. No significant trees are located on the site. The storm drainage system will collect flows from the three new houses, their driveways and from the private road. It will then be detained in an underground pipe and released to the public road system in S. 146th Street. Since no ditch or culvert system is available in front of the property, a 12 inch culvert with catch basins will be installed and run one parcel to the east to connect to an existing culvert. Off -Site Analysis: • Conditions and Requirements Summery: " Runoff from the new impervious areas will be detained and released at the 2- year and 10 -year predevelopment rates (Level 1 Detention). Flows were analyzed using the current KCRTS system. Post development water quality factors will include the restrictor tee in the detention catch basin working as an oil /water separator. At present runoff from the site flows via sheet flow entirely onto the parcel to the east. This parcel has a residence near the street, but the entire rear portion is used as a small tree nursery during wet weather, some ponding of water at the base of the small trees was noted. Due to the clay /till nature of the short plat site's soil, the runoff from the site impacts the neighboring site adversely. The proposed collection and routing of the site's runoff into the street system will improve the above effect on the neighboring property. The introduction of the additional water from the site will have some effects of the downstream conveyance system. A description of the downsteam system into which the site's flows will be released follows. The water released from the site will enter a new Type 2 catch basin to be located in the street frontage. A new 12 inch line will then run east (downhill) approximately 140 feet into a new Type 1 catch basin. This catch basin is installed onto an existing 12 inch culvert under a private road entrance. The flows continue to the east approximately 600 feet in a series of roadside ditches and 12 inch culverts. The ditches are typically 3 to 5 feet wide and 2 feet deep and vegetated with established grasses and weeds. The condition of the ditches is good, but a cleaning and re- excavation should be done where silt has raised the bottom of the ditch above the inverts of the culverts. All culverts noted still had reasonable flow capacity. At the end of this section of S. 146th Street (a dead end), the flows enter 100 feet of broad irregular heavily vegetated ditch down the slope into the system in 51st Avenue S. This system consists of a series of 12 inch culvert line and Type 1 catch basins running along the west side of the road. The flows enter this system via a catch basin to the side of the road, the flows entering by the top grate. This roadside system flows for approximately 500 feet as described, and beyond the limits of the 1/4 mile reach of this review. Discussions with maintenance personnel with City of Tukwila indicate occasional capacity problems with this last section of line. Public Works personnel indicate " this line is scheduled for upgrade in the next one to two years. Based on the above, extraordinary detention requirements were not imposed on the development of the short plat site. • w w 0 2 J LL Q As referenced above, the flows from the impervious surfaces will be detained on = a site in an underground pipe and is released at the 2 -year and 10 -year predevelopment rates. The method of analysis is KCRTS. Calculations are z attached. z F- LU • w 0 to o - O 1- w 0 17:- Conveyance System Analysis and Design: "-" o .z w o � Flow Control and Water Quality Facility Analysis and Design: Major water quality measures are not warranted due to the small size of the site. Standard filter fence will be installed along all downhill property lines. The undetained 100 -year flow of the developed site is 1.14 CFS. The flattest 12 inch N -12 pipe is 1.86 %, with a capacity of 1.8 CFS. As such this and other lines on site are noted as having appropriate capacity, including minor 6 and 8 inch lines (by inspection). Special Reports and Studies: Other Permits: Geotechnical Evaluation for the Purpose of Determining the Feasibility of the Use of Infiltration to Dispose of the Runoff Generated by the Development of the Scott Label 4 -Lot Residential Short Plat, date June 17, 2002, prepared by this office. Review of Infiltration Report, Proposed 4 -Lot Residential Short Plat, dated June 24, 2002, prepared by HWA Geo- Sciences, Inc. A street use permit will be needed install the line and catch basins in S. 146th Street. z re ~ w O 0 w = ce S. acVeigh, P.E. Civil Engineer Operations and Maintenance Manual: "a/J - ESC Analysis and Design: As noted above, the site is small warrants only the normal placement of standard filter fence along the downhill property lines. Bond Quantities, Facility Summaries and Declaration of Covenant: A street use bond will be required for the street storm line construction work. A facility summary will be provided when the drainage plan has been confirmed, as well as a mutual maintenance covenant for the on site drainage system. A facility operation /maintenance manual will be provided when the drainage plan has been confirmed and approved. LABEL05.doc �w.'`�1.'vli.:ua: l.Y' '16au'ie "w;:fil�YYe>wcL'i41nk:✓ &it+'::' 41., l' . i3CNAt....444.1 bA"•ii:'3iJt{�::Ir'� z ct ~ 0 0 U U: CO W J WO J' IJ_ cn = a E _ w z = E-. t- O . z �- ILI la • o . O 52: ❑ F- ▪ w or U O .z U =: O~ z EXPIRES: 4/ . 4/4 (O N Sire) < ) C t' ) Al K/o -- Q) 2)/2/yr -_ .77x /` /7'x20' ,vo -7 ; 423ovE. aac& PAs7v2E ..) / � ,I ; ) C -7G 7,4 L ) - -_ .t. /7Ulx ( Z 4So . o osF 7 S c � sr . 75 sA SW 0 s 750 s" (o.v -Si7z) 7 � ‘ P�4S7v2 .. OFF - s17�) / /GG P;4 7; L L41v#' < r e ) - " 111.P .E/2v/v vs A, .P.6 - 4", 4:7 6,0/ 7'/ c„,/ !c/ .S 774z. ,PA-s 77./.2 E 77 LI— IA4..' - 1 4 / // 2) , (7 4 7- 2 A cf A c. e Sr - (/,G 7.947. a, a /9/'c /4, 070 ,2FriyA(/p ; YZ L�w� � /z PAS 7ve 2,58 -Pe,C9 4 , — 0,723 Ac, _ //6"D Ac-- -�i G s b' /l pAS ' z "/ Ev r G/ I D . Z , / 4c---\ 0,87/ A c_ . a.$ d A 0..5 - 80 a(323 tf O.Zyv Ac_ 7. 0,614 Ac. a , 323 Ac_ Ac- e), 58/ A o, S 8 o Ac. 7 :_5 - / - /G' //-r 7 ci `r_S t /7/ i=i(1_ d, 2 o / /!t 0,297A No. 937 811E sui E OILER ® Engineer's Computation Pad NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEARIHAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. 0 M O 6.24 6.3 N8T' '49 existing House #4643 proposed house Iocatlon N Z' E.�SEWENT o All 1� /A.E•O 117/427 /ES /4/ 4 9/•fdN T.2'EiYG'.4 W! EZE'CT.t' /l CDND!/ /T✓ So. `6th St. . o ''' TD /NTtY 157/R7ED WATE2 • ER4' /CE 4 /NES Aga- (214/574'- 5WZ4AiYC.Q • .PEMD!/E P0.?7 /DNS !JF EX, D•/Y€ .PED /.PED 20' .PDAU AND ---- -� !/r /Z /T /.'S EASF/ ZO' PA!/ED P.P /1G 7 ROAD existing garage existing house N r 0 z ne proposed house location za .PDAD - urn /T /ES --- EASE &'NT RDAD WAV ..}t 7JEIVENT T� 98.09' 126.23 N � 7_// EX. ts Q PRDP. 1 /NE in r x r N � " SST (7> "SS G. "SS Pe ENTZeE Z W • 6 JO O 0 cA V) W J F- 2 L L W O cc. • Q co Z c5 Z = F- O ZF— WW U O — O H W w Li. I7 .. Z W co O~ Z SIM lib L _r ear INIM Fa al JOINT MAINTENANCE AGREEMENT Notice is hereby given that Scott and Sharon Label, owners of the followin described parcel of land: Lot 4, Block 5 of Adams Home Tracts do hereby establish this Agreement and convey unto all present and future owners, their heirs and assigns, of all or any of the foregoing described parcel of land, the maintenance of the easement granted and conveyed in Tukwila Short Plat #L01 -034, as described below: Roadway and Hammerhead. It is agreed that the cost of any repair or maintenance for the roadway and hammerhead easement shall be the joint responsibility of all present and future owners of the aforementioned parcel of land. The roadway and hammerhead is further described as the west 20 feet of lots 1 and 2, running north to south for a distance of 199 feet, and including the including the hammerhead starting at 114 feet from South 146 Street and extending 75 feet directly east at a width of 2o feet. A drawing is attached showing the location and the configuration of the easement. This Agreement shall be binding upon all present and future owners of the parcels created under the aforementioned document. Sharon L bel fi / r er - ptiY J, p %,, D •. gS1 0%V' • tin Date z w Ce J U 0 0 U0 co Lu J • w w 0 U-Q = H w Z = H zF- w w U O O C - 2 O H ww H • 0 • O c U I 9 _ O H z M r o O 0 (D. 0 6 0 .. r 0 F 0 ND — 1 20.00' NO1 3'32"E N011 3'32"E 200.00' 89.71' NO113 gl CA INJ co 0 or 3 K) 0 „,-- b ci --- f b- Gi - .--.0. ni c 5. a' _up 0 - - - 1 LA C .) 4` 2 0 : a (0 - (0 (i ( 3 I in - m i *- I ID co (A (lit •••• -1 3 U) (- 101 - 00 . 30 calc 661.86 colc. NO113'44"E 46h A v(-:. ?)outh 411 NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. . .11111111•140.- • 3 (D 0) 01 "M. Joint Maintenance Agreement Notice is hereby given that Scott and Sharon Label , owners of the following parcel of land: Lot 4, Block 5 of Adams Home Tracts Do hereby establish this Agreement and convey unto all present and future owners, their heirs and assigns, of all or any of the foregoing described parcel of land, the maintenance of the easement granted and conveyed in this proposed Tukwila Short Plat, #L01 -034, as described below: Sewer Line: It is agreed that the cost of any repair or maintenance of the sewer line shall be the joint responsibility of all present and future owners of the aforementioned parcel of land, except that the owners of a lower parcel shall not be responsible for the part of the sewer line above their connection. This agreement shall be binding upon all present and future owners of the parcels created under this aforementioned document. Scott Label wner Sharon Label - Owner Date Date v 7/' 7244 G' "Zy V Z -/ `. i 7�`Fe �� 'C 4 ;•' 5 g i0A i��.� , 'z: o NOTARY • • 5--- //rt_ C & "./ " - vx . /r-e-_ -// 7/es 1, %.. 'I 7-0"." / PERMIT CENTER Legal description: Lot 4, Block 5 of Adams Home Tracts Scott Label V Drainage Plan Maintenance of the above system is as follows: 1. Remove collected sediment from all residential sumps and all common system catch basins annually. 2. Inspect conditions of system during above sediment removal. 3. Have repairs, as needed, performed by a qualified contractor. 7 Date • P R Future residential building permits shall comply with the approved drainage plan for this lot. The approved size and location of runoff control Best Management practices are indicated on the short plat drainage plans. Non- compliance with the site drainage requirements invalidates drainage approval for these lots. The drainage for lots 2, 3 and 4, and for the common road are combined and routed through a common detention system located along the east side of the short plat in a common easement. Outflow from the detention system is conveyed to the culvert system along the south side of South 146 Street. ac Sharon Label _ ` 71. rric-p �. - l: \ ssioti ' c � ,� 2 .ei - ; /-f--4 :--‘-:;± 0 ......■ ca !'. � —=is /�fi /i ' G C ' -IC June 24, 2002 HWA Project No. 2002001 Scott Label 4226 — South 146 Street Tukwila, WA 98168 Subject: REVIEW OF INFILTRATION REPORT Proposed 4 -Lot Residential Short Plat 4643 South 146 Street Tukwila, Washington, 98168 cn LL. PERMIT CENTER w O 2 Dear Mr. Scott: co =w _ zI- I— 0 w J o U O N CI I— wW 1 - 0 The report prepared by Bruce MacVeigh, P.E., is based on six test pits uniformly located over the property. The test pits encountered topsoil (1 to 2 feet thick), over mottled clay loam (2 to 4 w z feet thick), over loamy clay to the maximum depth investigated of 4 to 5.5 feet. One test pit (TP- U =. 1), encountered hardpan at 5 feet below ground. No water table was encountered when the test p pits were excavated, but during two later visits, Mr. MacVeigh found that the pits had filled with rainwater and infiltration was very slow. Mr. MacVeigh concluded that the site soils were unsuitable for infiltration. As requested, we visited the subject property and reviewed a geotechnical report prepared by Bruce S. MacVeigh, P.E., dated June 17, 2002. The objective of our field visit and subsequent report review was to assess whether the site soils are suitable for infiltration. This letter provides our comments. BACKGROUND ECE VF AUG 09 TUKWA.- PUBLIC; 1iv')ri 'rc. The published geological maps of the area, "Preliminary Geological Map of Seattle and Vicinity" Waldron, H.H. et. al. 1962, and "Geological map of the Renton Quadrangle, King County" Mullineaux, D.R. 1965, show that the property is underlain by till. According to Waldron et. al.. till in the mapped area comprises an intimate mixture of clay to gravel sizes with local sand and gravel layers. The till is undrained to poorly drained, runoff is varied and infiltration very slow. OBSERVATIONS At the time of our visit, the site had been stripped, utilities installed, and a thick growth of weeds (mainly clover) had become established. Two piles of stripping debris were present. A large cedar tree remained near the existing house, and a fruit tree was present in the back yard. A large glacial erratic (2 feet by 3 feet in size) was present on the ground surface. Deep surface FIINAG EOSCI ENCES INC. • 19730 -64TH AVE. W.. SUITE 200 LYNNW000. WA 98036 -5957 TEL. 425 -774 -0106 FAX. 425-774-2714 www.hwageosciences.com CITY 01 TUE:WILA AUG 0 9 2002 GEOLOGY GEOENV1RONMENTAL SERVICES HYOROGEOLOGY GEOTECHNICAL ENGINEERING TESTING 8. INSPECTION z w 00 0) 0 u) w J Scott Label Short Plat, Tu WA HWA Project No. 2002001 ruts, resulting from construction equipment were present, and indicated that the surface soils are sensitive to water and disturbance. To facilitate our evaluation, Mr. Label had opened three previous test pits (TPs 3, 6; and one un- identified) near the east property to depths of about 1.5 to 2 feet. The soil profile consisted mainly of moist, firm, sandy silt to silty fine sand with some clay and scattered rounded gravel and cobbles. The soil was mottled, and roots were present to the base of the holes. Inspection of the spoil from the other previously backfilled test pits, elsewhere on the property, indicated similar silty soils. We noted no evidence of sand or sandy gravel typically associated with infiltration facilities purposes. CONCLUSIONS The sandy silt/silty fine sand with some clay and scattered gravel and cobbles observed during our field visit corresponds to the clay loam logged prepared by Bruce MacVeigh. Although, we consider that the material is more likely a silt loam than a clay loam, the fine grained nature and the presence of mottling indicates that this material has a very slow infiltration rate and would be unsuitable for infiltration. Based on our review, we concur with the conclusions made in the draft report. However, it should be noted that this review is based on limited visual observation of soils occurring at shallow depth to check the soil profiles, and relies largely on observations previously made and reported by Mr. MacVeigh. Thank you for the opportunity to provide this service. Should you have any questions regarding this letter, or require additional services, please contact us. Sincerely, HWA GEOSCIENCES INC. Brian E� WW_ .E.O2 /04 Senior Geotechnical Engineer Site Review letter - Junc 24. 2002.doc Y o Z Copy: Bruce S. IvlacVeigh, P.E., 14245 59 Avenue South, Tukwila, WA 98168 2 of 2 0.0 Lorne Balanko, P.E. Principal HWA GEOSCIENCES INC. :i;:'�:.. .•�,'» ad8:a June 6, 2002 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 VIA FAX 206 - 988 -0720 Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Dear Mr. Label: City of Tukwila Per our May 31, 2002 letter, you were advised that we would close the above - referenced files if we had not heard from you by June 13, 2002. We have since received your June 5th letter, requesting a 30 -day extension to allow you adequate time to respond to the requirements set forth in our March 13, 2002 technical review letter. This letter is to acknowledge our approval of your request and to formally extend the deadline from June 13, 2002 to July 15, 2002. Sincerely, Department of Community Development Steve Lancaster, Director Nora Gierloff Planning Supervisor cc: Deborah Ritter, Senior Planner Jill Mosqueda, Associate Engineer Lt. Don Tomaso, Fire Prevention Officer Steven M. Mullet, Mayor 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 - 3665 , 1 '''' rl ' (, q ,', ''," 17 !. ' ,., Pm r. ■ .: eea JUN 0 5 2002 co m m u m FPI DE 0 PMENT of i / , / kgeje 0 A , ____.. ._...__. „. ?aft 1 , 1 I I ., r 7A .../.■s ,--e.A. i opo , , I% 4 . — 4/6 co 4 .... .,..,,Acti / ' CO . — il, e // / ■ ‚• / 4W . ,. , ., - - / .....-e,t.-, ,. „ , / , . / , d , .. • ..... e2aziLeAt 4 , a4A4 t. , / J/ _ / , ' ir- . . ar i , • , . 52 6 4. ,, .. /// /„ .' -e4 l .• _fi i NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. 1 May 31, 2002 Dear Mr. Label: Sincerely, Nora Gierloff Planning Supervisor Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 VIA FAX 206 - 988 -0720 City of Tukwila Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director On March 13, 2002 we provided you with our technical review comments regarding your application for a 4 -lot short plat (under File L01 -034). We have yet to receive a response to that letter. Please be advised that the short plat file will be closed if you have not provided all of the requested documentation on or before June 13, 2002. If you have questions, please contact Deborah Ritter at 206 -431 -3663. cc: Deborah Ritter, Senior Planner Jill Mosqueda, Associate Engineer Lt. Don Tomaso, Fire Prevention Officer 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 March 13, 2002 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 VIA FAX 206 - 988 -0720 RE: Label 4 -Lot Short Plat (L01 -034) at 4643 S. 146th, Tukwila Dear Mr. Label: Short Plat Comments — Fire Department: Short Plat Comments — Public Works: 2. Roof Downspout Controls City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director We have completed a detailed review of the revisions you submitted on February 13, 2002 in connection with the above - referenced Short Plat application. Certain additional information is needed from you to ensure that the project meets the substantive requirements of the City and to complete our review process. We have the following comments: 1. The future houses on Lots 3 and 4 will be required to provide interior sprinklers. This requirement shall be stated on the face of the plat and must be met prior to the issuance of any building permits for Lots 3 and 4. Due to your change in the lot configuration and surface water drainage design, a new drainage review was performed. In addition, recent project review discussions within the City has led the Public Works Department to adhere more closely to the adopted surface water standard, the 1998 King County Surface Water Design Manual ( "KCSWDM "). This project is a single - family residential project that adds approximately 13,800 square feet of new impervious surface. The total site is approximately 39,136 square feet and the area of disturbance will be about 24,848 square feet (more than 35% of the site). This project requires a Full Drainage Review. If we assume that each house is 1,650 square feet (the smallest shown on the plans) and if the roof drainage can be exempted, then the total added impervious surface is approximately 8,900 square feet and the site may require only targeted drainage review. Per 1998 KCSWDM, 5.1, p 5 -3: "Essentially, roof downspout infiltration is required unless determined to be not feasible or not applicable using the evaluation procedure in 5.1.1, p 5 -5." Per Chapter 5, the Procedure for Evaluating Feasibility of infiltration must be followed to determine the appropriate type of roof downspout controls. The City will accept a soils report per 5.1.1 from a geotechnical engineer. The soils report shall meet the criteria in 5.1. In order to expedite the conclusion of this project, we recommend that the applicant hire a geotechnical engineer employed by a recognized qeotechnical firm to perform the site evaluations. NOTE: This geotechnical report 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Short Plat L01 -034 March 13, 2002 Page 2 is for evaluating feasibility of infiltration. The project is not triggering Tukwila's Sensitive Areas Ordinance requirements. 3. Comments on the Dispersion Trenches a. Site Plan. If, following feasibility evaluation, dispersion is the method of choice for the roof drains: b. Plat Map. 4. Comments on ESC Plan Provide the downspout dispersion system per 1998 KCSWDM details 4.2.2.C, 5.1.1.B and 5.1.2.A. KCRTS is not needed to size the trenches. The plans shall include the notes shown on 4.2.2C and shall also provide material descriptions for the trench lining and backfill. The plat, not the site plan, shall show the following note: Single family residences constructed on lots created by this subdivision shall provide downspout dispersion systems according to the details shown on the approved building permit plans. 5. Additional Documents to be Recorded It is preferable to provide measures to prevent erosion as a first line of defense and sediment retention as a second line of defense. Please provide erosion prevention measures, including seasonal cover requirements, per the KCSWDM, Appendix D. Show the ESC as a separate plan sheet with appropriate construction notes. Provide the following five documents for review by the Public Works Department and eventual recording with King County. All documents will require the owners' notarized signatures and shall be in a recordable format. • Condition for Building on Lots 2, 3 and 4. The document shall contain the following condition: Future residential building permits shall comply with the approved drainage plan for this lot. The approved size and location of runoff control Best Management Practices are indicated on the short plat drainage plans. Non - compliance with the site drainage requirements invalidates drainage approval for these lots. The document shall also contain the drainage plan description and specific maintenance requirements per the KCSWDM for Lots 2, 3 and 4. i , Short Plat L01 -034 March 13, 2002 Page 3 • Easement and Maintenance Agreement for Roadway and Hammerhead. This document shall include an easement description, specific maintenance requirements and a drawing z ~ showing the easement location. The joint maintenance agreement previously provided is W inadequate. QQ J 0 00 • N J F— w O -±" =w H = z I-. F— 0 . z F- LU The plat shall indicate house orientation on each lot (i.e., label front, sides and rear). o 6. O N 7. Richard Schroeter's license expires on March 23, 2002. Please revise all plans to show a new 0 • f - w W F- H u O ..z 8. Site Plan Review. If you wish to use your current site plan for the Miscellaneous permit, it must be v u) F--= 0~ Short Plat comments - Planning: expiration date. Easement and Maintenance Agreement for Sanitary Sewer. This document shall include an easement description, specific maintenance requirements and a drawing showing the easement location. Easement for Flow Path from Lot 4 to Lot 3. This document will be needed if the flow dispersion plan does not change. The document shall include an easement description, specific maintenance requirements and a drawing showing the easement location. In addition, this document shall restrict activities on Lot 4 which might adversely affect the drainage path. Additional Comments from Public Works: amended to contain the following information prior to submission of your application: a. The site plan shall be prepared by a professional engineer, registered in the State of Washington. The engineer shall stamp, date and sign each sheet. Each sheet shall be 22" x 34" in size, maximum. b. Notes required for storm drainage, including erosion prevention and sediment control. c. Reference the project name (Label Short Plat), address, file number (L01 -034) and north arrow. d. A scale shall be provided showing 1 " =40' horizontal and 1 " =4' vertical. e. Show all existing and proposed property lines. f. All existing and proposed easements and rights -of -way including boundaries, dimensions, purposes and recording numbers. g. Construction notes. h. Existing and proposed topography for the site and extending 15 feet beyond property lines. Total cut and fill volumes, to be shown separately. z Short Plat L01 -034 March 13, 2002 Page 4 q. Next Step: Sincerely, j. Quantity of soil or earth material in cubic yards to be excavated, filled, stored or otherwise utilized on site. Location and graphic representation of proposed excavations and fills, or on -site storage of soil and other earth material, and any on -site disposal. w re 2 6 00 CD 0 LLI J H Number of acres of entire parcel (to nearest 0.1 acre), total square footage of all co u- impervious surfaces and percentage of site which will be impervious. k. Location and graphic representation of all existing and proposed natural and man -made drainage features including water courses, lakes and wetlands within one - quarter of a mile upstream and downstream of the project boundaries. Deborah Ritter Associate Planner W 2 m. Footprints and finished floor elevations of all buildings and structures on the property (as well as footprints of buildings and structures on adjacent properties within 15 feet of co d ` property lines which may be affected by the proposed grading operations). H in z i n. Expected finished grade ten feet from each house. H 0 z I- 1.11 Lu o. All existing and proposed infrastructure, both below and above ground. ? Q p. Streets, driveways, storm drainage, water supply and sanitary sewer. o D- E prevention and sediment control plan. Dimensions of clearing limits, sensitive areas and their buffer. Upon receipt of all of the documentation requested in Items 1 through 7 above, we will continue processing your Short Plat application. If you have any questions regarding Public Works comments, please contact Jill Mosqueda, Associate Engineer at 206 -433 -0179. If you have any questions regarding Planning comments, please contact me at 206 -431 -3663. cc: Jill Mosqueda, Public Works Lt. Don Tomaso, Fire Department W W O .. z W i o I 0 I- z March 12, 2002 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 VIA FAX 206 - 988 -0720 Dear Mr. Label: RE: Label 4 -Lot Short Plat (L01 -034) at 4643 S. 146th, Tukwila We have completed a detailed review of the revisions you submitted on February 13, 2002 in connection with the above - referenced Short Plat application. Certain additional information is needed from you to ensure that the project meets the substantive requirements of the City and to complete our review process. We have the following comments: Short Plat Comments - Fire Department: 1. The future houses on Lots 3 and 4 will be required to provide interior sprinklers. This requirement shall be stated on the face of the plat and must be met prior to the issuance of any building permits for Lots 3 and 4. Short Plat Comments - Public Works: Due to your change in the lot configuration and surface water drainage design, a new drainage review was performed. In addition, recent project review discussions within the City has led the Public Works Department to adhere more closely to the adopted surface water standard, the 1998 King County Surface Water Design Manual ( "KCSWDM "). 3S � .��., Ste l ` `ks k This project is single family r= dental prejtct that adds approximately 13,800 square feet of new impervious surface. The total site is - •roximately 39,136 square feet and the area of disturb ce will be about 24,848 square feet (more tha r , ' % of the site). FVhis projec t. i ied_per a Full Drainage Review - • • ' -....0 • • • • • - - - •dard. If we assume that each house is 1,650 square feet (the smallest shown on the plans) and if the roof drainage can be exempted, then the total added impervious surface is approximately 8,900 square feet. 6.., 4- �,-N e-. '' ii .�-- t0. c ti.,-- , X iact... v� 4 .e....73 Z ✓ ... G�+ ontrols Pe 2. o 91) pg Per 1998 KCSWDM, 5.1, p 5 -3: "Essentially, roof downspout infiltration is required unless determined to • - et- feasib - or not applicable using the evaluation procedure in 5.1.1, p 5 -5." a �rzt , the Procedure for Evaluating Feasibility of infiltration spelled -e+ ust be followed to determine the appropriate type of roof downspout controls. he City will accept a soils report per 5.1.1 from a geotechnical engineer. The soils report shall meet the criteria in 5.1. In order to expedite the conclusion of this project, we recommend that the applicant hire a qeotechnical engineer employed by a recognized qeotechnical firm to perform the site evaluations. IQ e ' --rte 5 u -,r � Lst • � ' s v % Ja %I cI,NC.\ 1 Or l w 0. X S ft- � .� u c le() cJ_ CLie v'e a Cecz S' • DRAFT Short Plat L01 -034 March 12, 2002 Page 2 3. Comments on the Dispersion Trenches S tie a ir, following feasibility evaluation, dispersion is the method of choice for the roof drains: Provide the downspout dispersion system per 1998 KCSWDM details 4.2.2.C, 5.1.1.B and 5.1.2.A. KCRTS is not needed to size the trenches. The plans shall include the notes shown on 4.2.2C and shall also provide material descriptions for the trench lining and backfill. I3 Plat Map. The plat, not the site plan, shall show the following note: Single family residences constructed on lots created by this subdivision shall provide downspout dispersion systems according to the details shown on the approved building permit plans. 5. Comments on ESC Plan It is preferable to provide measures to prevent erosion as a first line of defense and sediment retention as a second line of defense. Please provide erosion prevention measures, including seasonal cover requirements, per the KCSWDM, Appendix D. Show the ESC as a separate plan sheet with appropriate construction notes. 6. Additional Documents to be Recorded Provide the following five documents for review by the Public Works Department and eventual recording with King County. All documents will require the owners' notarized signatures and shall be in a recordable format. • Condition for Building on Lots 2, 3 and 4. The document shall contain the following condition: Future residential building permits shall comply with the approved drainage plan for this lot. The approved size and location of runoff control Best Management Practices are indicated on the short plat drainage plans. Non - compliance with the site drainage requirements invalidates drainage approval for these lots. The document shall also contain the drainage plan description and specific maintenance requirements per the KCSWDM for Lots 2, 3 and 4. rte' SY Easement and Maintenance Agreement for Roadway and Hammerhead. his document shall include an easement description, s ecific maintenance requiremen and a drawing showing the easement location. The joint intenance agreement previously provided is inadequate. DEG Short Plat L01 -034 March 12, 2002 Page 3 Easement and Maintenance Agreement for Sanitary Sewer. This document shall include an easement description, specific maintenance requirements and a drawing showing the easement location. • Easement for Flow Path from Lot 4 to Lot 3. This document will be needed if the flow dispersion plan does not change. The document shall include an easement description, specific maintenance requirements and a drawing showing the easement location. In addition, this document shall restrict activities on Lot 4 which will adversely affect the drainage p . frA, _"Sr Short Plat comments - Planning: I � 7. The plat shall indicate house orientation on each lot (i.e., label front, sides and rear). 8. Richard Schroeter's license expires on March 23, 2002. Please revise all plans to show a new expiration date. Additional Comments from Public Works: 9. Site Plan Review. If you wish to use your current site plan for the Miscellaneous permit, it must be amended to contain the following information prior to submission of your application: a. The site plan shall be prepared by a professional engineer, registered in the State of Washington. The engineer shall stamp, date and sign each sheet. Each sheet shall be 22" x 34" in size / AAA. X I mu. U& b. Notes required for storm drainage, including erosion prevention and sediment control. c. Reference the project name (Label Short Plat), address, file number (L01 -034) and north arrow. d. A scale shall be provided showing 1 =40' horizontal and 1 " =4' vertical. e. Show all existing and proposed property lines. f. All existing and proposed easements and rights -of -way including boundaries, dimensions, purposes and recording numbers. g. Construction notes. h. Existing and proposed topography for the site and extending 15 feet beyond property lines. Total cut and fill volumes, to be shown separately. J• Quantity of soil or earth material in cubic yards to be excavated, filled, stored or otherwise utilized on site. Location and graphic representation of proposed excavations and fills, or on -site storage of soil and other earth material, and any on -site disposal. Short Plat L01 -034 March 12, 2002 Page 4 Next Step: Upon receipt of all of the documentation requested in Items 1 through 8 above, we will continue processing your Short Plat application. If you have any questions regarding Public Works comments, please contact Jill Mosqueda, Associate Engineer at 206 -433 -0179. If you have any questions regarding Planning comments, please contact me at 206 -431 -3663. Sincerely, k. Location and graphic representation of all existing and proposed natural and man -made drains a features including water courses, lakes and wetlands within one - quarter of a mile ey6 =n•, downstream of the project boundaries. Num•er of acres of entire parcel (to nearest 0.1 acre), total square footage of all impervious surfaces and percentage of site which will be impervious. m. Footprints and finished floor elevations of all buildings and structures on the property (as well as footprints of buildings and structures on adjacent properties within 15 feet of property lines which may be affected by the proposed grading operations). ,, 'A • c K' c 'u eet .C.4, vi. t. Ltd- LC.Ssai - I0' "I,.Ww- e r.�c,..c 1.4C7wUe2_, n. All existing and proposed infrastructure, both below and above ground. o. Streets, driveways, storm drainage, water supply and sanitary sewer. p. Erosion prevention and sediment control plan. Dimensions of clearing limits, sensitive areas and their buffer. Deborah Ritter Associate Planner cc: Jill Mosqueda, Public Works Lt. Don Tomaso, Fire Department . :_;.1i:eiimiCd c✓S,.fS Ls+ 8.wkatuwvi{i.ES : aaii �h ++'wai:4�:tiJl:GiburJ�rfr «,iY „ • . • JOINT MAINTENANCE AGREEMENT Notice is hereby given that Scott and Sharon Label, owners of the following parcel of land: Block 5, Lot 4, Adams Home Tracts do hereby establish this Agreement and convey unto all present and future owners, their heirs and assigns, of all or any of the foregoing described parcel of land, the maintenance of the easement(s) granted and conveyed in this proposed Tukwila Short Plat, as described below: 1. Water Line, Power Line and Cable Line (TV and Telephone): It is agreed that the cost of any repair or maintenance for the water line, power line and cable lines (television and telephone) shall be the joint responsibility of all present and future owners of the aforementioned parcel of land. 2. Sewer Line and Stonewater Line: It is agreed that the cost of any repair or maintenance of the sewer line or stormwater line shall be the joint responsibility of all present and future owners of the abrementioned parcel of land, except that the owners of a lower parcels shall not be responsible for the part of the sewer /stormwater line(s) above their connection. This Agreement shall be binding upon all present and future owners of the parcels created under the aformentioned document. Date RECEIVED CITY OF TUKWILA 1 PERMIT CENTER December 18, 2001 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 Dear Mr. Label: City of Tukwila RE: Label 4 -Lot Short Plat (L01 -034) at 4643 S. 146th, Tukwil+ There are three basic steps in the short plat approval process: 1. Preliminary Approval General Approval Conditions PRELIMINARY APPROVAL CONDITIONS pan Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director NOTICE OF DECISION z I Z ce 2 00 N 0 CD W J = H w 2 u_ Q co a 'The Short . Subdivision Committee has 'completed their review of your short plat z application (L01 -061-) and has determined that it complies with all applicable City code z o requirements. This letter serves as the Notice of Decision per TMC 18.104.170. Based on your latest project submittal dated November 26, 2001, preliminary approval is granted subject to the conditions stated below. o cn • F. w w L I o w z U - o 1— This letter constitutes your preliminary approval. The application was reviewed by the Tukwila Short Subdivision Committee and approved with conditions. The conditions imposed are to ensure the short plat is consistent with the Criteria for Preliminary Approval listed at TMC 17.12.020(C) in the Tukwila Subdivision Code. a. You will need to obtain all required permits prior to beginning any construction. For water and sewer permits, contact the individual provider District. For City of Tukwila utilities, contact Tukwila Public Works at (206) 433 -0179. b. Install all required site improvements, including those proposed in the short plat application and those identified above as conditions of approval. c. Submit a set of recording documents in either legal or record of survey format that meet the King County Recorder's requirements. The surveyor's 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 -431 -3670 • Fax: 206- 431 -3665 z Short Plat L01 -034 December 18, 2001 Page 2 g. original signature and the notarized signatures of all property owners must be on the face of the plat. Fire Department Approval Conditions d. Prior to the development of Lots 3 and 4, the following will be required. If there is no fire hydrant within 250 feet of all building sites, then the developer shall either install a fire hydrant capable of a 1,000 gallon per minute flow OR the future houses on Lots 3 and 4 will be requirg'd to provide interior sprinklers, to be approved by the Fire Department. This requirement shall be stated on the face of the recorded plat and must be met prior to the issuance of any building permits for Lots 3 and 4. Public Works Department Approval Conditions e. Please provide a separate document for the proposed access easement that has been properly executed and notarized and in a form acceptable to the King County Recorder's Offices. f. The Joint Maintenance Agreement must be properly executed and notarized and in a form acceptable to the King County Recorder's Office. Please revise this document accordingly. Under your proposal, the amount of impervious surface for the short plat is approximately 16,740 square feet. This square footage triggers a full drainage review per the 1998 King County Surface Water Design Manual. Public Works will require a soils report which has been prepared, signed, stamped and dated by a licensed civil engineer. The civil engineer must be licensed in the State of Washington and must meet the 1997 definition of a geotechnical engineer. The soils report must meet the requirements set out in the 1998 King County Surface Water Design Manual. The soils report must be based on an actual site investigation performed by the civil engineer that prepared, signed, stamped and dated said report. If you plan to use infiltration for the houses so you can remove them from the impervious surface calculation, you must provide documentation that you have met all requirements spelled out in the 1998 King County Surface Water Design Manual, Chapter 5 and Appendix C. sm .. c„��' ., ,.r ti:" s�, s.w.ln...s.S'�+`.Arru...•c.:2: r rr.�.f1:"y'a 41d;= iu!$,n;}7f 4 Short Plat L01 -034 December 18, 2001 Page 3 • Planning Department Approval Conditions h. The vicinity map (shown on the drainage plan) mistakenly shows a property on South 148th. Please provide the correct vicinity map for the proposed short plat, which is located on South146th. Additional Information For your reference, we have attached a drawing illustrating the impervious surface under your current proposal can be reduced by 4,000 square feet (or approximately 25 %). The associated cost of paving will be also be reduced. In the alternative scenario, the eastern leg of the "H "- shaped access road has been eliminated and the footprints of Lots 3 and 4 have been revised to orient Lots 2, 3 and 4 (boundaries shown in blue) to one common access (shown in orange). If you wish to use the alternative scenario, please revise all short plat documents accordingly. Your property is located within.the Citrus Longhorned Beetle Quarantine Area established on November 27, 2001 by the Washington State Department of Agriculture ( "WSDA "). Please refer to the attached packet for more information. Appeal materials shall include: APPEALS This short plat approval decision is appealable to the Hearing Examiner. One administrative appeal of the decision on the short plat is permitted. If no valid appeals are filed within the time limit, the decision of the Department will be final. In order to appeal the decision a written notice of appeal must be filed with the Department of Community Development within 21 days of the issuance of the Notice of Decision (i.e., no later than January 8, 2002). The requirements for such appeals are set forth in Tukwila Municipal Code 18.116. 1. The name of the appealing party. 2. The address and phone number of the appealing party; and if the appealing party is a corporation, association or other group, the address and phone number of a contact person authorized to receive notices on the appealing party's behalf. Short Plat L01 -034 December 18, 2001 Page 4 3. A statement identifying the decision being appealed and the alleged errors in the decision. The Notice of Appeal shall state specific errors of fact or errors in application of the law in the decision being appealed; the harm suffered or anticipated by the appellant, and the relief sought. The scope of an appeal shall be limited to matters or issues raised in the Notice of Appeal. Any appeal shall be conducted as an open record hearing before the Hearing Examiner. The Hearing Examiner's decision on the appeal is the City's final decision. 2. Final Approval The next step is to install the required site improvements, comply with the conditions of approval and submit the necessary short plat documents (survey, legal descriptions, and other required paper work). You may apply to delay installation of the site improvements up to six months beyond final approval subject to the approval of the Public Works Director. A financial guarantee must be provided to ensure installation. After the documents have been found to be in order, and the all of the requirements of the short plat have been met, the Chair of the Short Subdivision Committee signs your short plat which constitutes a grant of final approval. Expiration The final approved short plat must be filed with the King County Department of Records by December 18, 2002, one year from the date of this preliminary approval or the application will expire. The City may grant a single one year extension if requested in writing prior to the expiration date. 3. Recording The signature of the Chairman of the Short Subdivision Committee certifies that your short plat application is ready for recording. It is your responsibility to record the City approved short plat documents with the King County Department of Records. You will need to pay the recording fees and submit your approved original short plat to King County (see the Recording Procedures handout, attached). The short plat is not complete until the recording occurs and copies of the recorded documents are provided to the Department of Community Development. ... ,......._. z w • 2 � O 0 co o • ul J H w • 0 � i s � w z = o . w ~ 0 O 9 O I- ww o .. z w • = I= • � z Short Plat L01 -034 December 18, 2001 Page 5 Sincerely, After recording, the County returns the recorded original to the City of Tukwila within 4 -6 weeks, at which time your short plat is considered complete. You can shorten this processing time by hand - delivering a copy of the recorded short plat to the project planner. In many circumstances, building permits on the short platted property may not be issued until a copy of the recorded short plat (or original) is returned to the Department of Con1munity Development. Steve Lancaster Chair, Short Subdivision Committee cc: Deborah Ritter, Associate Planner Jill Mosqueda, Associate Engineer Lt. Don Tomaso, Fire Prevention Officer King County Assessor, Accounting Division ..... s: L;. u..,_., au:: f. S.:. wu ;G:wt�5:.'F:F : l._ - 'Liu'' ,. , i.��ti�fiSr �' •. z i �. w • JU 00 co o' Ill = J F- • u_ w gQ = • a F.. L11 r Z �. F- Z w 2 O 0: O F--• :w w. I - • U u" O w z U co :0 ~ z Project Name: Scott Label Short Plat 4643 S. 146 Street File #: 101 -034 Date: 11.27.01 Reviewer: L. Jill Mosqueda, P.E. Projects /short plat /I01 -034 Scott Label Comm 2 CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS The City Of Tukwila Public Works Department has the following comments regarding your application for the above permit. Please contact Jill Mosqueda at (206) 433 -0179, if you have any questions regarding the following comments. 1. Provide an access easement separate from the plat map. The easement shall be in a form acceptable to King County Records and shall be notarized. 2. Provide a notarized Joint Maintenance Agreement in a form acceptable to King County Records. 3. The calculated NEW impervious surface for this short plat is 13,715 SF. This square footage triggers a full drainage review. If you plan to use infiltration for the houses so you can remove them from the impervious surface calculation, then you must provide documentation that you have met all requirements spelled out in the 1998 King County Surface Water Design Manual, Chapter 5 and Appendix C. (Please refer to Item 9 in your July 9th letter from Department of Community Development.) Since the site map has a notation that the soils are clay, I suspect infiltration will not work on this site. Public Works will require a Soils Report from a licensed civil engineer who meets the 1997 UBC definition of a geotechnical engineer and meets the requirements set out in the 1998 King County Surface Water Design Manual. 1 City of Tukwila Department of Community Development - Permit Center 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 (206)431 -3670 Revision submittals must be submitted in person at the Permit Center. Revisions will not be accepted through the mail, fax, etc. Date: 1177-- 0 ( Plan Check/Permit Number: O ( 0 3 Response to Incomplete Letter # j. Response to Correction Letter # 0 Revision # after Permit is Issued Project Name: 5G ©rr 6/4-6& � ~L- Project Address: 3 So • /q6 r4 Z-1) Contact Person: co Tr L Phone Number: 6 2 -L13- L/72 -S' Summary of Revision: &- (S & St - - Aii Ll v 0 v To 0)144,L w 1774 5H-00-7- Apt-r / a&-ki4e-74.7- s- Received at the City of Tukwila Permit Center by: El Entered in Sierra on locr CITY OF TU I E CWILA NOV 23 2001 PERMIT t• Sheet Number(s): "Cloud" or highlight all areas of revision including date of revision 4,4 13:: ' JOINT MAINTENANCE AGREEMENT Notice is hereby given that Scott and Sharon Label, owners of the following parcel of land: Block 5, Lot 4, Adams Horne Tracts do hereby establish this Agreement and convey unto all present and future owners, their heirs and assigns, of all or any of the foregoing described parcel of land, the maintenance of the easement(s) granted and conveyed in this proposed Tukwila Short Plat, as described below: 1. Water Line, Power Line and Cable Line (TV and Telephone): It is agreed that the cost of any repair or maintenance for the .. water line, power line and cable lines (television and telephone) shall be the joint responsibility of all present and future owners of the aforcnentioned parcel of land. 2. Sewer Line and Stormwater Line: It is agreed that the cost of any repair or maintenance of the sewer line or stormwater line shall be the joint responsibility of all present and future owners of the atbrementioned parcel of land, except that the owners of a lower parcels shall not be responsible for the part of the sewer / stonnwater line(s) above their connection. This Agreement shall be binding upon all present and future owners of the parcels created under the aformentioned document. , .�� F- © / haron Label - ner Date RECEIVED CITY oP TUKWILA NOV 2 6 2001 PERMIT CENTER z 6 00 co a 0) w J al g Q : co = w ' z �. w ~ U • � O 7 ❑ f- w 1U �o ..z w _, 0 I z THE FOLLOWING FILE(S) ERASED FILE FILE TYPE OPTION 049 MEMORY TX ERRORS 1) HANG UP OR LINE FAIL 2) BUSY 3) NO ANSWER 4) NO FACSIMILE CONNECTION Department of Community Development 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Phone: (206) 431 -3670 Fax: (206) 431 -3666 ax Ta: „,„_lt- L�eQ Fax: .C) „ e - Cyl n� U Phone: •• TRANSMISSION RESULT REPORT (NOV 15 '01 12:31PM) TUKWi,.., -s DCD /PW ■ TEL NO. PAGE RESULT 9 *- 2069880720 02/02 OK From: Date: Pag es: (AUTO) City Of Tukwila otih Lt 0 L"l For Review 0 Please Comment CI Please Reply 0 Please Recycle '�,'�.....x.Y'::1..1�`1 e� y � . �' a", ..t r ^1z1 +.�," i•. '"X' � i s +' i `'�:�%V�, �' � `"�'• ty 9 c ",. u y "4o-' ", {,;+' u � • ri`hv �kd�t,:{v ri! ; iv 'e llK.'z• ' • �. i�: . ' �r..:r: Department of Community Development 6300 Southcenter Blvd, Suite 100 Tukwila, WA 98188 Phone: (206) 431 -3670 Fax: (206) 431-3665 Fax ❑ Urgent •Comments: To: S From: 10,f6 Off-cic Fax: a0 Le - -1 gf .. cr- a Q Date: 4t 1 - 0 1 Phone: Zto • � L� � j- '- i as Pages: Re: - I 1 s )e) * p\ cO, k \S I On � � ck ❑ For Review ❑ Please Comment ❑ Please Reply ❑ Please Recycle • November 15, 2001 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 VIA FAX 206 - 988 -0720 Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Dear Mr. Label: Sincerely, c f-rAe Deborah Ritter Associate Planner Attachment City of Tukwila cc: Jill Mosqueda, Public Works Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director We have received your November 14th request for an extension of the expiration date on this file from November 15, 2001 to December 3, 2001. Your request is approved subject to the condition that you submit all of the outstanding items identified in our July 9, 2001 technical review letter at one time, on or before that date. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 -431 -3670 • Fax: 206 - 431 -3665 November 15, 2001 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 VIA FAX 206 - 988 -0720 Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Dear Mr. Label: Sincerely, aFrA, Deborah Ritter Associate Planner Attachment city of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director We have received your November 14th request for an extension of the expiration date on this file from November 15, 2001 to December 3, 2001. Your request is approved subject to the condition that you submit all of the outstanding items identified in our July 9, 2001 technical review letter at one time, on or before that date. cc: Jill Mosqueda, Public Works 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206- 431 -3665 • NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR - THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. mo z <O o m 0 m C z N C z - m November 14, 2001 To: Jack Pace From: Scott Label Dear Mr. Pace: Thank you for your assistance. This letter is to request an extension of my building permit application- #L01 -034. I understand that it expires on November 15, 2001. I wo uL� like to request an extension until December 3, 2001. This will allow me more time in which to complete the required paperwork. z Z w U 0 U CI) = CO w O: g Q � a = • w •z w ▪ ~ 2 U - .0 1- wmi z U - O •Z" CU H O Z November 9, 20 City of Tukwila Attn: Ms. Jill Mosqueta Subject: Revised Conceptual Dear Ms. Mosqueta: Attached is a revised conceptual drainage to the lot layout required this change. It turn kind of percolation and no natural or man mad It appears that the Appendix C Dispersi • • rench c eria come in to play. Each house will have its own system, and the pri : to road (actuall 'ncluding house driveways) is less that 10,000 SF. It appears that th- 5 setback for house -nches and 10' setback for road and driveway areas can be me Your thoughts, please. 'eel free to call. Thank you. Bruce . MacVeigh, P.E. Civil Engineer B ruce S. MacVeigh, P.E. Civil Engineer 14245 59th Avenue South Tukwila, WA 98168 Office: (206) 242 -7665 FAX: Same rainage Plan - Scott Label 4-Lot Sho for th- . • ove short plat. Recent revisions ut e soils on site are not suitable for any ays exist to lead drainage off of the site. lat, L01 -034 LAB : 01.doc RECEryED �" of ru� NOV 9. 2001 PE RMIT CENTER L-01 6.3e-le NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR -THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. 34.5 277.5 xistin House `3 #464 Finish Floor 79.0' south edge asphalt - IO N ' 20' easement for ingress, egress and utilities 3 33 "cedar /vi?/ 1//9 '7. - y � k S J � C v A exi ing - rage existing house 279,6 • ° chain link fence orth edge asphalt 76.0 of 9 q 2 � �� 2 • LOT % 27 274 N 126.23' % S87'59 07 "E 73.6 .4 ■ 1, 274.0 ;2 74.2 W r L_ ° z .9 -, 0 west edge conc driveway 0 e /t7eAI , — (/VE 7z- 723 N- 72 4E) (5 - 17 L � 6 - 1 35 .S 271.9 2 NOTE: Found rebor w /cc #9814 - 0.01' W. 0.36' S. of cola. 272.8 0 / AYE to = 3X 1 ,1 0 S / /a ysFS 57S / q zoo .5 (4b X zo I ) L 0/ o3Y NOTE: Ci 1 I,4 fnr_ }hic . iir'. /PV wrtc rhininPd by z a Z w a: 2 00 0 co F- w to = W 1- z � 0 Z 1.11 ui ON OH W W ILIO .. z w U = 0 ~ z NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. 7 C.2.4.3 DISPERSION TRENCHES Where dispersion of concentrated flows through 50 feet of vegetation is not feasible, such as on a small or highly constrained site, a dispersion trench may be used to "unconcentrate" flows. Dispersion trenches provide some storage for runoff, promote infiltration, and spread concentrated flows so that a shorter vegetated path length can be used at the trench outlet. This BMP is more expensive than the simple dispersion systems described above, and must be carefully constructed to be effective. Typical Uses: Roof downspouts, steep driveways, or any situation where flows are concentrated but where dispersion through vegetation (previous section) is not feasible. Design Specifications Figure C.2.F (p. C -20) provides details for dispersion trenches. In addition, the following requirements must be met: SECTION C.2 FLOW CONTROL BMPs JC wagc Jy,leiii le IU11C111C111. • A vegetated flowpath of at least 25 feet in length must be maintained between the outlet of the trench and any property line, structure, stream, wetland, or impervious surface. A vegetated flowpath of at least 50 feet in length must be maintained between the outlet of the trench and any steep slope. Sensitive area buffers may count towards flowpath lengths. CO W • Each trench can serve up to 700 square feet of impervious area. For larger impervious areas, Figure 4.2.2.0 in the Surface Water Design Manual includes design details for a flow dispersal trench which can be installed on small sites at a ratio of 10 feet of trench per 700 square feet of impervious area. • a • A setback of at least 5 feet must be maintained between any edge of the trench and any structure or Z Ili property line. O z f- w 2 0. U 0 P- o • No erosion or flooding of downstream properties may result. • Runoff discharged towards landslide hazard areas must be evaluated by a geotechnical engineer LL O or qualified geologist. The discharge point may not be placed on or above slopes greater than 20% tii or above erosion hazard areas without evaluation by a geotechnical engineer or qualified geologist and U = DDES approval. o F- z • For sites with septic systems, the discharge point must be downgradient of the drainfield primary and reserve areas. This requirement can be waived by DDES permit review staff if site topography will clearly prohibit flows from intersecting the drainfield. See Reference B for a summary of SKCDPH onsite sewage system requirements. C.2.4.4 SHEET FLOW DISPERSION Sheet flow dispersion is the simplest method of flow control. This BMP can be used for any impervious surface that is graded so as to avoid concentrating flows. Because flows are already dispersed as they leave the impervious surface, they need only traverse a narrow band of adjacent vegetation for effective attenuation and treatment. Typical Uses: Flat or moderately sloping surfaces (< 15% slope) such as driveways, sport courts, patios, and roofs without gutters; or any situation where concentration of flows can be avoided. Design Specifications Figure C.2.H (p. C -22) and the following guidelines apply to surfaces graded to avoid concentrating runoff: • A 2- foot -wide transition zone to discourage channeling should be provided between the edge of the driveway pavement and the downslope vegetation, or under building eaves. This may be an extension of subgrade material (crushed rock), modular pavement, drain rock, or other material acceptable to DDES. • A vegetated buffer width of 10 feet must be provided for up to 20 feet of width of paved or impervious surface. An additional 5 feet of width must be added for each additional 20 feet of width or fraction thereof. • No erosion or flooding of downstream properties may result. 0/ - 0 ?K`?!' iC }Yr.�!1gz�'ti^'.!µ7l•w.cercemwrwT V rc + -� �r+•..�•:.�...w. ) W F- SECTION C.2 FLOW CONTROL BMPs FIGURE C.2.F TYPICAL DOWNSPOUT DISPERSION TRENCH 9/1/98 0 OA0d °4070 00 D .d 90 v a ap ' a o Q 0 o —`.. O Q D Qa 0av V 4Oa Dv a4° o Qa v o o v v oo D 44 0 v o 0. _� 0 0 0 v 0 0 0' 0 0 a ° D .. 0. °° 45:9009 0 410 c o Q .. o , od o an _ 4" pert pipe 0 0 �pV DA" 0 • " 0 a o 04 vv 18 min DpoD 0V D j " " 0—V v. ° 0 o o p 11/2 - 3/a washed rock D v "0 0 0 D 0 0 ° 0 0 0 p4 Dov -De,a0 oov II0 0 0 0 0 0 . 0 0 0 0 0 44 24 "min TRENCH X- SECTION NTS <200 sq. ft. >700 sq. ft. slope PLAN VIEW OF ROOF NTS small catch basin or yard drain L1— 2' x 10' level trenches Type I CB level outlet standard dispersion trench w/ notched grade board length 10' per 700 sq. ft, of roof area, see Figure 4.2.2.0 of the Surface Water Design Manual Small Site Drainage Requirements 4 i a •� October 16, 2001 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Dear Mr. Label: We have received your October 2, 2001 letter requesting a waiver of TMC Title 17 code requirements pertaining to short plats and the minimum standards for access roads. Your current short plat application (L01 -034) proposes a private access road that is 251 feet in length, 20 feet in width and serving four lots. As we have previously advised you, private access roads may not be more than 200 feet in length nor less than 20 feet in width. Access roads over 200 feet in length and /or interior to a short plat of five or more lots shall be publicly owned and designed to full width improvements. Your request for a waiver has been reviewed by the Short Subdivision Committee and denied as it does not satisfy the exception criteria provided in TMC 17.28.010 (attached). On July 9, 2001 we provided you with our technical review comments regarding your application for a 4 -lot short plat (under File L01 -034). We have yet to receive a response to that letter. Please be advised that the short plat file will be closed if you have not provided all of the requested documentation on or before November 15, 2001. If you have questions, please contact Deborah Ritter at 206 -431 -3663. Sincerely, Jack Pace Planning Manager Attachment City of Tukwila cc: Deborah Ritter, Planning Jill Mosqueda, Public Works Lt. Don Tomaso, Fire Department Steven M Mullet, Mayor Department of Community Development Steve Lancaster, Director 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 .= TUKWILA MUNICIPAL CODE D. Amount of Financial Security: The financial security provided shall be 150% of the estimated cost of the improvements to be completed and all related engineering and incidental expenses, final survey monumentation and preparation of reproducible mylar or electronic records in a format approved by Public Works and meeting current Public Works drawing standards of the "as- built" improvements. The sub- divider shall provide an estimate of these costs for acceptance by the Public Works Director. E. Defective Work: The acceptance of improve- ments by the City shall not prevent the City from making a claim against the developer for any defective work if such is discovered within two years after the date of completion of the work. (Ord. 1833 §1(part), 1998) Page 17 -18 Sections: 17 .28.010 17.28.020 17.28.030 17.28.040 Chapter 17.28 EXCEPTIONS, PENALTIES, SEVERABILITY, LIABILITY Exceptions. Penalties. City not liable. Severability. 17.28.010 Exceptions. A. EXCEPTION CRITERIA: Exceptions from the requirements of this code may be granted when undue hardship may be created as a result of strict compliance with the provisions of this code. Any authorization for exception may prescribe conditions deemed necessary or desirable for the public interest. An exception shall not be granted unless: 1. There are special physical circumstances or conditions affecting said property, such that the strict application of the provisions of this code would deprive the applicant of the reasonable use or development of his land; and 2. The exception is necessary to insure such property rights and privileges as are enjoyed by other properties in the vicinity and under similar circum- stances; and 3. The granting of the exception will not be detrimental to the public welfare or injurious to other property in the vicinity. B. PROCEDURES: An application for any excep- tion from this code shall be submitted in writing by the subdivider, as part of the application for short subdivi- sion, binding site improvement plan, or preliminary plat. Such application shall fully state all substantiating facts and evidence pertinent to the request: 1. Short subdivision: A short subdivision or binding site improvement plan exception shall be reviewed by the Short Subdivision Committee in conjunction with review of the short subdivision or binding site improvement plan application. The deci- sion of the Short Subdivision Committee shall be final and conclusive unless appealed in accordance with the appeal procedure for Type 2 decisions set forth in TMC 18.108.020. 2. Preliminary plat: A preliminary plat excep- tion shall be considered by the City Council at the same time the public hearing is conducted for the preliminary plat. The decision of the City Council shall be final and conclusive. (Ord. 1833 §1(part), 1998) Printed September 5, 2000 z z re w 0 u) 0 . w = J I �LJ.. w I w z = zI- w U • co O N aF- ww u.. w z O z 17.28.020 Penalties. Any violation of any provision, or failure to comply with any of the requirements of this chapter, shall be subject to the terms and conditions of Chapter 8.45 ( "Enforcement "). (Ord. 1838 §16, 1998; Ord. 1833 §1(part), 1998) 17.28.030 City not liable. This code shall not be construed to relieve from or lessen the responsibility of any person owning any land or building, constructing or modifying any subdivisions in the City for damages to anyone injured or damaged either in person or property by any defect therein; nor shall the City or any agent thereof be held as assuming such liability by reason of any preliminary or final approval or by issuance of any permits or certificates authorized herein. 17.28.040 Severability. If any section, subsection code is for any reason held to decision shall not affect the portions of this code. Printed September 5, 2000 (Ord. 1833 §1(part), 1998) , clause or phrase of this be unconstitutional, such validity of the remaining (Ord. 1833 §1(part), 1998) TITLE 17 — SUBDIVISIONS AND PLATS Page 17 -19 October 2, 2001 Scott Label 4226 So. 146th Tukwila, WA 98168 Steve Lancaster, Director Dept of Community Development 6300 Southcenter Blvd Tukwila, WA 98188 Dear Mr. Lancaster: I am the owner of a recent short plat with 4 houses located in Tukwila. I have an opportunity of purchasing two adjacent lots, on which I would like to build two additional houses. I would have to access these lots through my existing short plat, however the distance to access these lots would be over 200 feet. I undersand that any access road over 200 feet would have to conform to subdivision standards. I can comply with all the requirements, except for the requirement of a wider public access road. I currently have a road that is 20 feet wide and I understand that the public access road needs to be wider than that. Because of space limitations I am unable to widen my access road. The purpose of this letter is to request a waiver of the requirement for a wider access road. I would appreciate the opportunity of meeting with you to discuss my requested waiver or other possible solutions. Thank you. Sincerely, ~. Scott Label 206 -243 -4725 July 9, 2001 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Dear Mr. Label: City of Tukwila Steven NI. Mullet, Mayor Department of Community Development Steve Lancaster, Director We have completed a detailed review of your Short Plat application. Certain additional information is needed from you to ensure that the project meets the substantive requirements of the City and to complete our review process. We have the following comments: Short Plat comments - Planning: 1. The vicinity map (shown on the drainage plan) mistakenly shows a property on 148th. Please provide a vicinity map for the proposed short plat, which is located on 146th. Plat Map 2. Per TMC 17.20.030(C)(5)(d), proposed private access roads may not serve more than four lots nor be more than 200 feet in length. Those access roads 150 feet or greater shall have a turnaround built to Fire Department standards. The access road must be paved. Your proposal shows a private access road that is approximately 251 feet in length. You have the following options: a. Redesign the lot layout to accommodate a private access road of 200 feet in length or less. Your proposed turnaround should be retained if the access road is 150 feet or more in length. The road must be paved. b. Make the 251 foot access road a public road conforming to the standards set forth in TMC 17.20.030(C)(6), attached. 0.300 Southcentc'r Boulevard. Suite 7100 • Tukwila, Washington 98188 • Phone: 20o•- 131.3o70 • Fax: 20n- 431.30o5 Mr. Scott Label July 9, 2001 Page 2 3. The cover sheet of the plat map shows two surveyor's certificates. The surveyor's certificate at the top of the plat map will be acceptable when it has been signed, dated and properly stamped. The surveyor's certificate at the bottom of the plat map is to be deleted. 4. All items on the plat map that are written by hand shall be typed. Site Plan 5. The site plan is currently labeled "Sheet 2 of 2 ". However, we have not received a "Sheet 1 of 2" for the site plan. Either provide the missing "Sheet 1 of 2" or make the necessary corrections to show the site plan as "Sheet 1 of 1". Short Plat Comments — Public Works: The road classification and plat design issues (referenced above) require resolution before Public Works can proceed with the short plat review. 6. Please provide easement and maintenance agreements for the following: a. Utilities (such as electric, gas, water, TV and telephone lines) b. Sewer and Stormwater lines c. Access These easement and maintenance agreements shall be notarized and in a form acceptable to King County for recording purposes. 7. Please review the Joint Maintenance Agreement you provided (copy attached). Item 1 (Water Line, Power Line and Cable Line) refers to the "main water line ". The main is usually in the public right -of -way, which in this case is South 146` Street. This verbiage may mislead and should be changed. Plat Map 8. The plat map must show the location and dimension of all proposed easements (see Item 6 above). Site Map 9. The site map shows proposed storm drainage for the road. Because storm drainage can have a significant impact on a short plat, it is best to get the storm drainage issues resolved at this early stage. Please provide percolation test results, so we can determine if infiltration is the way to handle the drainage. Also, please include all new impervious surfaces in the impervious surface calculations. Include driveways and expected new housing, and provide square footage for existing, new and total final impervious surfaces. We have enclosed a copy of our Percolation Test Procedure for your reference. • Mr. Scott Label July 9, 2001 Page 3 Short Plat Comments — Fire Department:: 10. Any house on proposed Lot 4 will require a sprinkler system as it will exceed the 250 foot maximum distance from the hydrant. Next Step: Upon receipt of all of the documentation requested in Items 1 through 10 above, we will continue processing your Short Plat application. If you have any questions regarding Public Works comments, please contact Jill Mosqueda, Associate Engineer at 206 -433 -0179. If you have any questions regarding Planning comments, please contact me at 206 - 431 -3663. Sincerely, Deborah Ritter Associate Planner Enclosures cc: Jill Mosqueda, Public Works Steve Kohler, Fire Department :•.l:L'ii�F:�yJi: _��.v:VitiA'.i.v.�.. -.. ,t'tl..:.ati.�e�...•. usr..t. <.•4ru.n: -1i� 4vlT -'.: — _Y•:.�+ • Printed September 29, 1998 TMC Chapter 18.46, and /or the flood zone control ordinance, TMC Chapter 16.52. No lot shall be created that does not contain an adequate building site, given the environmental considerations of the lot and current development standards. 2. TREES — In addition to meeting the requirements of TMC Chapter 18.54, Tree Regulations, every reasonable effort shall be made to preserve existing trees and vegetation, and integrate them into the subdivision's design. B. Compatibility with Existing Land Use and Plans: 1. BUFFER BETWEEN USES — Where single - family residential subdivisions are to be adjacent to multiple - family, commercial or industrial land use districts, and where natural separation does not exist, adequate landscape buffer strips and /or solid fences for screening shall be provided. 2. CONFORMITY WITH EXISTING PLANS — The location of all streets shall conform to any adopted plans for streets in the City. If a subdivision is located in the area of an officially designated trail, provisions may be made for reservation of the right -of -way or for easements to the City for trail purposes. The proposed subdivision shall respond to and complement City ordinances, resolutions, and comprehensive plans. . 3. OTHER CITY REGULATIONS — All sub- divisions shall comply with all adopted City regula- tions. In the event of a conflict, the more restrictive regulation shall apply. 4. ACCESSORY STRUCTURES — If a subdivi- sion, short plat, or boundary line adjustment in a resi- dential zone would result in an accessory structure remaining alone on a lot, the structure must be demolished before preliminary approval, or the owner must provide a bond or other financial guarantee acceptable to the Director in the amount of 150% of the cost of demolition and assurance that the accessory structure will be demolished if a residence is not built on the lot within 12 months of final approval. C. Streets: 1. EXTENSION: Proposed street systems shall extend existing streets at the same or greater width, unless otherwise approved by the Department of Public Works and authorized by the City Council in approval of the plat. Where appropriate, streets shall be extended to the boundaries of the plat to ensure access to neighboring properties. The City's goal is to have an integrated system of local streets whenever practical. Grading of steep topography may be necessary to achieve this objective. However, in sensitive areas, the layout and construction of streets shall follow the standards and procedures of the sensitive areas overlay zone. Dedication of additional right -of -way may be required for a short plat when it is necessary to meet the minimum street width standards or when lack of such dedication would cause or contribute to an unsafe road or intersection. T1T17 — SUBDIVISIONS AND PLATS Page 17 -13 2. NAMES: All proposed street names or numbers shall be subject to approval by the Depart- ment of Community Development. 3. INTERSECTIONS: Any intersection of streets, whatever the classification, shall be at rignt angles as nearly as possible and not be offset insofar as practical. 4. STREET LAYOUT: Street layout shall pro- vide for the most advantageous development of the subdivision, adjoining areas, and the entire neighbor- hood. Evaluation of street layout shall take into con- sideration potential circulation solutions. While it is important to minimize the impact to the topography from creating an integrated road system, improved site development and circulation solutions shall not be sacrificed to minimize the amount of cut and `ill requirements of the proposal. Where sensitive areas are impacted, the standards and procedures for rights -of- way in the sensitive areas overlay zone shall be followed. 5. v Private access roads may be authorized if: a. Allowing private access roads in the area being subdivided will not adversely affect future circulation in neighboring parcels of property; and b. Adequate and reasonable provisions are made for the future maintenance and repair of the proposed private access roads; and c. The proposed private access roads can accommodate potential full (future) development on the lots created; and d. For residential subdivisions, the pro- posed private access road ... serve more th -. W lots nor are more than 200 feet in length. Those _access- - roads ee r Qre er in length shall have a turnaroun ui t to Fire Department standards. e. 1-or co - i. an inaustrial sub- divisions, when private access roads are authorized, there shall be a minimum easement width of 40 feet. With the exception of minimum easement widths, private access roads shall be designed and constructed in accordance with the Department of Public Works standards, and zoning setbacks shall be required as though the easement were a public right -of -way. 6. PURI.IC ROADS: a. Right-of -way and paving widths for public roads shall be based as shown in the following table. The minimum paving and right -of -way width shall be used unless the City Engineer demonstrates a wider width is needed due to site circumstances, including but not limited to topography, traffic volume, street patterns, on -street parking, lot patterns, land use and bike and transit facilities, that justify an increase in width. 7:tli:ixa `eurr� �C:+ili��,.'C.., -� din .(LiX�,:.i:11..sawa.csatlux:LL Type of Street Right -of -Way Roadway Pavement Principal Arterial I 80 - 100 feet 148 - 84 feet Minor Arterial I 60 - 80 feet 36 - 64 feet Collector Arterial 60 - 80 feet 124 - 48 feet Access Road I 50 - 60 feet . 128 - 36 feet Cul -De -Sac Roadway I 40 feet I 26 feet Turnaround (single I 80 feet (dia.) family) 60 feet (dia.) Turnaround (multi - family, commercial) 92 feet (dia.) 81 feet (dia.) Alley I . 20 feet I 15 feet Private Access Roads Residential I 20. feet I 20 feet Commercial I 40 feet I 28 feet TUKWILA MUNICIPAL CODE b. Design: The design and aliznment of all pu li.c streets shall_c_o_nform ro the follawing.$tan- dards unless otherwise approved by the Deparm_ent o1 Pudic Works: (1) Cul -de -sacs: Cul -de -sacs are not allowed unless there is no reasonable alternative or the cul -de -sac is shown on an officially adopted street plan. When allowed, they shall not exceed a length of 600 feet unless the City Council determines that adequate alternative emergency access will be provided. (2) Street Grades: Street grades shall not exceed 15%. However, provided there are no vehicular access points, grades may be allowed up to 18 %, for not more than 200 feet when: (a) Exceeding the grades would facilitate a through street and connection with the larger neighborhood; (b) The greater grade would min- imize disturbance of sensitive slopes; (c) The Fire Marshal grants approval of the grade transition; and (d) Tangents, horizontal curves, vertical curves, and right -of -way improvements con- form to Department of Public Works standards. pg.e c. Full width improvement: (1) When interior to a subdivision or a short plat of five or more lots, all publicly owned streets shall be designed and installed to full width improvement as provided below: (a) Shall be graded as necessary to conform to Department of Public Works standards. (b) Shall be of asphaltic concrete according to Department of Public Works standards. (c) Shall have permanent concrete curbs and gutters according to Department of Public Works standards. (d) Shall have storm drains consist- ing of the proper size pipe and catch basins; sizes to be approved by the Department of Public Works prior to the public hearing for the preliminary plat. Page 17 -14 (e) Shall have sidewalks provided at a minimum width as specified in TMC Chapter 11.18. (2) When interior to a short plat of four or fewer lots, all public streets and all privately owned streets that have the potential to serve five or more lots shall be designed and installed to full width improve - ment as provided below: (a) Shall be graded as necessary to conform to Department of Public Works standards. (b) Shall be of asphaltic concrete according to Department of Public Works standards. (c) Shall provide storm drainage to be approved by the Department of Public Works. (d) Shall provide sidewalk right -of- way or easements at a minimum width as specified in TMC Chapter 11.18. (e) Shall construct or provide L.I.D. no- protest agreements for permanent concrete curbs, gutters, and sidewalks according to Department of Public Works standards. (f) Shall be dedicated to the City or subject to a bindingagreement for future dedication. Qom .,e... '‘,.(3),.. All privately owned roads that will serve four or fewer houses shall be designed and installed to full width improvement as provided below: (a) Shall be graded as necessary to conform to Department of Public Works standards. (b) Shall be of asphaltic concrete .according to Department of Public Works standards. (c) Shall provide storm drainage to be approved by the Department of Public Works. d. Half width improvement: (1) Streets abutting the perimeter of a subdivision or short plat of five or more lots shall provide the full improvements on the half of the street adjacent to the site, provided additional paving may be required to ensure safe and efficient roads exist to serve the subdivision; provided further that there are no physical obstructions to completing the other half of the roadway; and that there is a minimum of 20 feet of paving. (2) If the future grade or alignment of the adjacent public street is unknown and it is not feasible to establish the grade in a reasonable period or the immediate improvement of the street would result in a short, isolated segment of improved street and similar street improvements in the vicinity are unlikely to occur within six years, the City may approve a delay of improvements. The owner(s) must agree to enter into a binding L.I.D. no- protest agreement to further improve the street to full public street standards in the future, however adjacent stre :s must still be improved to the minimum level necessary, in the judgment of the City Engineer, to safely accommodate traffic generated by the proposed subdivision or short plat. Printed September 29, 1998 z = ce w 00 (/) ❑ J H N w 2 5 u. � a = w H = z � I— 0 z t- w uj 2 o 0 0 D- ❑ 1- w O ..z w U = 0 1- z JOINT MAINTENANCE AGREEMENT Notice is hereby given that Scott and Sharon Label, owners of the following parcel of land: Block 5, Lot 4, Adams Home Tracts do hereby establish this Agreement and convey unto all present and future owners, their heirs and assigns, of all or any of the foregoing described parcel of land, the maintenance of the easement(s) granted and conveyed in this proposed Tukwila Short Plat, as described below: 1. Water Line, Power Line and Cable Line (TV and Telephone): It is agreed that the cost of any repair or maintenance for th main water line, S- t "'" power line and cable lines (tel ion and . P.0 - telephone) shall be the joint responsibility of all t' ;;-„ \ c present and future owners of the aforementioned parcel of land. Sewer Line and Stormwater Line: It is aereed that the cost of any repair or maintenance of the sewer line or stormwater line shall be the joint responsibility of all present and future owners of the aforementioned parcel of land, except that the owners of a lower parcels shall not be responsible for the part of the sewer /stormwater line(s) above their connection. This Agreement shall be binding upon all present and future owners of the parcels created under the aformentioned document. op- c//07 Scott Label - O'voner Date Sharon Label - OWner Date • vuG:.:Y.L:Lviw:tY�viF" n.3 Y21].i�..4'il:'j.f «. i�:, 1Lti::.. _•Y +`H:�ti$�:�+'f•5':9'tt',.u:tt Percolation Test Procedure Public Works Department City of Tukwila ) t est Locations! Perform at least two percolation tests et the proposed infiltration location. Space the test locations uniformly throughout the proposed ar Depending on site conditions, the Public Works Department may require additional tests. Test Preparation - Dig or bore a hole that is 6-8 inches wide and 3 feet deep. To expose a natural soil surface, scratch the sides of the hole with a sharp, pointed instrument and remove the loose soils from the bottom of the test pit. Place two inches of gravel in the bottom of the hole to prevent scouring when the water is added. Soaking Period! On the evening. BEFORE you expect, to perform the percolation test, soak the holes. To soak the holes, fill each test hole With clear water. • ! f, after twice filling the hole with water,' the water seeps completely away within 10. minutes, proceed with the •nex i step, "Measuring the Percolation Rate ": Sandy soils will drain very quickly. If the water does not completely drain away in 10 minutes, then you must soak the soil. To soak the soil, keep adding water so that each hole remains full over a period of four hours. Soils with clay in them require this longer soaking time. 'Percolation Measure,men' Refer to Figure 1 while reading these directions. Place two nails, three inches apart, into a piece of wood lath that is longer than the hole depth. Place the nails. on the lath so that they will be 5-8" below the top of the hole when the lath is placed in the hole. z w. U O; • W = LL: ..W o H • 'W W' - O W z' o z t { 2 " -4— .r -o" NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. . • • Permit Number Owner Name Project Address Contact Phone Number Test Hole No. 1 1. 2. 3. P /pubwarks /f crms /percolation rzsr direcriar,s Percolation Test Results Public Works Department City of Tukwila Timed Test Results Test Hole No. 2 1. 2. 3. Place additional test results on the back. I certify that I conducted or witnessed the Percolation Test Procedure as stated in the City of Tukwila "Percolation Test Procedure" handout and the timed results as stated above are correct. Contractor or Owner's Signature Data z • z r4 W JU 00 U w w W = H w 0. g co D. = W _ Z I— 0 Z 1—• LLI .2 D D 0 ,O cA. 0 W W LL' O` ..z. z• • CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS z � Project Name: Scott Label Short Plat J File #: L01 -034 o o J Da te: 06.28.01 u , w Reviewer: L. Jill Mosqueda, P.E. 2 u_ a co = a 1- W z = o The City Of Tukwila Public Works Department has the following comments z LII w regarding your application for the above permit. Please contact Jill Mosqueda at 2 o (206) 433 -0179, if you have any questions regarding the following comments. o t. 0 H General = uj From the Public Works side, both the storm drainage and road u o classification questions need clearing up before this more review w z continues. U o � Submittals 1. Please provide an access easement and maintenance agreement 2. Please review the Joint Maintenance Agreement you provided. Item 1. "Water Line, Power...." Refers to the "main water line ". The main is usually in the public right -of -way, in this case S. 146 Street. I think this verbiage may mislead and should be changed. In addition, the easements and maintenance agreements shall be notarized, so they can be recorded with King County. Plat Map 1. The final plat map shall be stamped, signed, and dated by a Washington licensed land surveyor. 2. The plat map should show the proposed easements. Projects /short plat /I01 -034 Scott Label 1 z • Site Map 1. The site map shows proposed storm drainage for the road. Because storm drainage can have a significant impact on a short plat, it is best to get the storm drainage issues resolved up front. Please provide percolation test results, so we can determine if infiltration is the way to handle the drainage. Also, please include all new impervious surface in the impervious surface calculations. Include driveways and expected new housing, and provide square footage for existing, new and total final impervious surface. 2. The City considers any road over 200' a public road. Please refer to the enclosed excerpt from TMC 17. — .....un,e. +......�a._ .:: b_ v. c�,.a:+.'.wuax:.....c.:..r,5�.. :.�t�_r tiea+_+:r.+4zcstos: .3ou:�::auali,4r -:!' �:i�ynr3.Cw.:rnu4 �t: ,;yyyr,�•. • ,. Projects /short plat/I01 -034 Scott Label 2 • Dept. Of Community Development .City of Tukwila AFFIDAVIT OF DISTRIBUTION i ' L SL /e HEREBY DECLARE THAT: Notice of Public Hearing Determination of Non - Significance Project Name: L.Ak t_.., Notice of Public Meeting Project Number: L.01 Mitigated Determination of Non - Significance Person requesting mailing: Board of Adjustment Agenda Pkt Determination of Significance & Scoping Notice Board of Appeals Agenda Pkt Notice of Action Planning Commission Agenda Pkt Official Notice Short Subdivision Agenda X Notice of Application Shoreline Mgmt Permit Notice of Application for Shoreline Mgmt Permit • FAX To Seattle Times Classifieds Mail: Gail Muller Classifieds PO Box 70 - Seattle WA 98111 Other L' P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM Was mailed to each of the addresses listed on this 4 2 &ll' -day of Jv J . in the year 20 DI ,.,., .ir 7 >. ° r;c � 5 t ' is 'i ins' eY rb . ' �. : � ve: » t,� . . . 7 �.t.t. � . 'i .y . Project Name: L.Ak t_.., S ?j PL Project Number: L.01 Mailer's Signature: y 1 Person requesting mailing: J) L' P:GINAWYNETTA/FORMS /AFFIDAVIT -MAIL 08/29/003:31 PM Was mailed to each of the addresses listed on this 4 2 &ll' -day of Jv J . in the year 20 DI ,.,., .ir 7 >. ° r;c � 5 t ' is 'i ins' eY rb . ' �. : � ve: » t,� . . . 7 �.t.t. � . 'i .y . City of Tukwila Department of Community Development Steve Lancaster, Director NOTICE OF APPLICATION DATED JUNE 22, 2001 The following application has been submitted to the City of Tukwila Department of Community Development for review and decision. APPLICANT: Scott Label LOCATION: 4643 South 146th, Tukwila FILE NUMBERS: L01 -034 (Short Plat) PROPOSAL: Create a four lot short plat OTHER REQUIRED Land Altering Permit, City of Tukwila PERMITS: Building Permits, City of Tukwila These files can be reviewed at the Department of Community Development, 6300 Southcenter Blvd., #100, Tukwila, WA. Please call (206) 431 -3670 to ensure that the file(s) will be available. OPPORTUNITY FOR PUBLIC COMMENT Steven M. Mullet, Mayor You can submit comments on this application. You must submit your comments in writing to the Department of Community Development by 5:00 p.m. on July 6, 2001. If you have questions about this proposal contact Deborah Ritter, the Planner in charge of this file at (206) 431 -3663. Anyone who submits written comments will become parties of record and will be notified of any decision on this project. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 -431 -3670 • Fax: 206 -431 -3665 SHORT PLAT NUMBER 1.01 -034 Lcbe! 4 –Lot Short Plat CITY OF TUKWILA WASHINGTON N AREAS LOT 1 (excluding easement) = 14,266 sq.tt. LOT 1 (including easement) = 12,025 sq.tt. LOT 2 (excluding casement) = 6,704 sq.ft. LOT 2 (including easement) = 8,837 sq.tt. LOT 3 (excluding easement) = 6,690 sa.ft, LOT 3 (including easement) = 8,836 s; LOT 4 (excluding easement) = 7,177 sq.ft. 1167'55'49 "w LOT 1 Detail Eosement P 19L 0 T 2 14 87'55'49 "W 45.30' /"----- 44.71' 9: )d87'55'49 "w R - 20 00' L = 31.71' F.$ gi ro 20.00' I 8 LOT 4 LOT 3 587'55'49 "E RECORDER'S CERTIFICATE tiled for record this.......,...oay of 19 at 11 in book of of page at the request of 11 HF rr Found 2" brass disk in concrete In case 7/9/99 ^ ' 2" brass disk In concrete in case - 7/9/99 .Found 1" oipe w /lock in case - 2 77' east k 1 36' south at talc. inlersectiion. s0. 148th St. LAND SURVEYOR'S CER'IIp'ICATE This Short Plot correctly represents a surrey mode by "it tic under my direction in conic'mance with the requlrelnpnts of the appropriate Slate Statute and Ordinance In 20........ Cis li ficn!e Ito. So. 14.4th Street -- — Al 504.99' talc. So. 146th St. ,s( OC, q0 e Jo t. J 20' 20' easement - - -.� for ir.gress, egress 0,1(1 utilities fi geal1 7 au ) ar /LIG/INI uilstWJ 3 cdcting garage e'nrhnq •wuso J sun 1 FUR: e.s101g Itoaee n 16•l: L— IgCY) . 0 rf 26.6' t ~! I Nd7'S5 a9'W tt l` I 11:6 24' I - h •r 1 tJ r- u , n u 1 1 IS IC Scot( Lahti 4643 - 461h Street Tuxwilo, WA proposed house IC cation 129.25' 1467'55'49 "W -� 200' k- i proposed ouse IOCChon ! 1482'55'49' w to : d, : - L O T 1 - `-I 20 0' J 50' 1 115755.' I 5 0'-'J LOT • — m 126:: ; . 50.2' L0T 3 prc•pcsea house lacalwr. I I \.1 1 1 11121, t• 30 it bE1/4 It NON OF of LI. 126 23' I A ) 6 S t2u.r3 5.9' - 7'5'10: . E rp G ren:TY' ale ■ 'Chum Iinh. 'chum tllfll I I 30 E NE_1 /4, s. _ I 1, t ` - %ounu 'trier elan) #5614 - 0.01' W. te 0.36' S. of cuic. position. 1/LS1 So. /yke s r 50 M44J61 " , $ - -/ 14 172 5 1t 0 • LEGEND Concrete Monument in Case Alonumant Tack In Lead or Noll & Disk Set rebor w /cop x'23604 Found pipe or rebor r! vi'.11 11114 2 11 21101 PE.nmi r CEI'n i fiN1:. 61 Ion DAZE 3/22/01 OAR FIELD 6/11/99 CwtO. OY SCALE , Re...ea 5/21 /01 I" 30' 60 •f_� R2 ., :16'4'/ ' S[a r1F1'h4• Held dote fur this sur.ey won obtained by ,[ r7J$' uirecI tell meaeuremenls. Angular and linear relollonenips we't meg:hred e,lth O 9i. Second theodolite and electronic 'eosin inag ,le.lce, sl,uplemened by u steel tape. SCHROETER64LAND SURVEYING PROFESSIONAL LAND SURVEYORS Ph Su, 911 Sechurst, ucdtr..pScn YUU62 (206) 242.6921 Fan 1106)243 -967: u a JOB NO. 353/1 PROJECT NO. 93066 SHEET 2 OF 2 June 21, 2001 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Dear Mr. Label: Your Short Plat application has been found to be complete as of June 21, 2001 for the purposes of meeting state mandated time requirements. Essentially, this means that you have supplied the required items listed on the application checklist for this type of permit. We are about to commence our technical review process, which is the next phase in the processing of your Short Plat application. Although your application has been found to be "complete ", the items you supplied may have to be revised or amended. The City may also require that you submit additional plans and information to ensure the project meets the substantive requirements of the City and to finalize the review process. If you have any questions, please feel free to call me at 206 - 431 -3663. Sincerely, 122.:) Deborah Ritter Associate Planner m%) City of Tukwila Department of Community Development Steve Lancaster, Director NOTICE OF COMPLETE APPLICATION Steven M. Mullet, Mayor 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 -431 -3665 InforinationoRequired: ?` r ` .. Response • Office U Comments &Conditions. Total existing lots prior to Short Plat. Total lots in this Short Plat. , I Total acres involved in the Short Plat. 1 Constraints (sensitive area, right retention /detention areas) in acres or sf. of way, 0.0t4 . Any preexistiong uses? Ho Overall density (lots /acre). 1 1 . for GROWTH MANAGEMENT ACT REQUIRED INFORMATION RECEIVED CITY OF TUKWILA JUN 2 0 2001 .... n.,. u5a '.'.xii:::1„i;:`:�a...,..:.�� eea:i= ,..:..:.�.,. :.,r•:.a.,.::y++:�::r - G;\ APPHANILANDUSE .APP\SHTPLTPT.DOC, 06/15/00 PERMIT CENTER Information Required. May be waived in unusual . cases, upon approval of both Public Works and Planning Information . Waived PbWk / Ping Office Use Only Comments & Conditions. APPLICATION FORMS: 1. Application Checklist four (4) copies, indicating items submitted with application. 2. Short Plat Complete Application Packet: four (4) copies of the application form and full size plans and one (1) set of High Quality Photo Reductions of all plans reduced to 81/2 " x 11 ". (See Site Plans). 3. Short Plat Fee $200. 4. SEPA Environmental Checklist eight (8) copies and Fee ($325). REQUIRED FOR SHORT PLATS OF 5 -9 LOTS. PUBLIC NOTICE MATERIALS: (5 — 9 Lot Short Plats Only) SUBMIT PUBLIC NOTICE MATERIALS ONLY FOR SHORT PLAT OF 5 TO 9 LOTS OR IF ENVIRONMENTAL REVIEW IS REQUIRED. 5. King County Assessor's map(s) which shows the location of each property within 500 ft. of the subject lot. SUBMIT PUBLIC NOTICE MATERIALS ONLY FOR SHORT PLAT OF 5 TO 9 LOTS OR IF ENVIRONMENTAL REVIEW IS REQUIRED. 6. Two (2) sets of mailing labels for all property owners and tenants (residents and businesses) within 500 feet of the subject property. (Note: Each unit in multiple- family buildings - -e.g. apartments, condos, trailer parks - -must be included) (see Public Notice Materials Section). SUBMIT PUBLIC NOTICE MATERIALS ONLY FOR SHORT PLAT OF 5 TO 9 LOTS OR IF ENVIRONMENTAL REVIEW IS REQUIRED. 7. A 4' x 4' public notice board will be required on site within 14 days of the Department determining that a complete application has been received (see Public Notice Materials Section). SUBMIT PUBLIC NOTICE MATERIALS ONLY FOR SHORT PLAT OF 5 TO 9 LOTS OR IF ENVIRONMENTAL REVIEW IS REQUIRED. PROPERTY INFORMATION: 8. Vicinity Map with site location. COMPLETE APPLICATION CHECKLIST The materials listed below must be submitted with your application unless specifically waived in writing by the Public Works Department and the Department of Community Development. Please contact the Department if you feel that certain items are not applicable to your project and should be waived, or should be submitted in a later timely manner for use at the public hearing (e.g., revised colored renderings). Application review will not begin until it is determined to be complete. ADDITIONAL MATERIALS MAY BE REQUIRED. The initial application materials allow starting project review and vesting the applicant's rights. However, they in no way limit the City's ability to require additional information as needed to establish consistency with development standards. RECEIVED Department staff are available to answer questions about application materials at 206 -431 -3670. CITY OF TUKWILA G:W PPHAN\LANDUSE.APP\SHTPLTPT.DOC, 06/15/00 JUN 2 0 2001 COMPLETE APPLICATION CHECKLIST TABLE PERMIT CENTER Information Required. May be waived in. unusual cases, upon approval of both Public. Works and Planning Information . 'Waived .; PbWk /Ping Office Use Only .. Comments & Conditions. 9. Title Report- -dated within 30 days of application filing which clearly establishes status as legal lot(s) of record, ownership, all known easements and ecumbrances. 10. Lot lines for 300 ft. from the sites property lines including right -of -ways. SITE PLANS -- 11. One set of all plans and analyses shall be stamped by a licensed professional surveyor or engineer, as would normally be required in a building permit application, and have an original signature. Additional copies of the signed set may be submittd to satisfy the total number of copies required. Revisions shall satisfy this criteria. 12. A boundary and topographic survey (2 ft. contours including a minimum 20 ft. beyond the property line) with all above easements, encumbrances and right - of -way width /infrastructure. Elevations shall be City of Tukwila datum (NGV 1929 datum for 100 year flood elevation with equation to City of Tukwila datum). This shall be stamped by the surveyor, and include a surveyor's certificate (sample attached). 13. Location of all sensitive areas (e.g., streams, wetlands, slopes over 20 %, coal mine areas and important geological and archaeological sites.). Provide sensitive area studies as needed per TMC 18.45. Also show trees over 4" caliper in sensitive area or buffers, indicating those to be saved. All proposed sensitive area and tree protection measures shall be shown. 14. 100 yr. flood plain boundary and elevation as shown on FEMA maps. 15. Existing property lines to remain and proposed lot lines shall be shown as solid lines. New lines shall be called out. Lines to be removed shall be dashed and called out. 16. Building footprint with changes in elevation, site improvements with sufficient dimensions to be accurately described and located (driveways, firelanes, parking layout, rockeries /retaining walls, fences). 17. Fire access lanes and turn- arounds to be per Fire Department standards. G APPHAMLANDUSE.APP\SHTPLTPT.DOC. 06/15/00 RECEIVED CITY OF TUKWILA JUN 2 0 2001 PERMIT CENTER 4. Appropriate provisions have been made for dedications, easements and reservations. 5. The design, shape and orientation of the proposed lots are appropriate to the proposed use for which the lots are intended and are compatible with the area in which they are located. 6. Appropriate provisions for the maintenance of commonly owned private facilities have been made. 7. The short plat complies with the relevant requirements of the Tukwila Zoning Ordinance and other relevant local regulations. (TMC 17.12.030(c)) CRITERIA FOR FINAL APPROVAL OF SHORT PLATS: 1. All requirements for short plats as set forth in the Subdivision Code are met. 2. All terms of the preliminary short plat approval have been met. 3. The requirements of Chapter 58.17 RCW, other applicable state laws, and any other applicable City Ordinances have been met. 4. All required improvements have been installed in accordance with City standards or an improvement agreement with financial guarantee pursuant to TMC 17.24.030 has been entered into by the applicant and accepted by the City. 5. That the plat is technically correct and accurate as certified by the land surveyor responsible for the plat. �i.i.:....:�'.:'- w. -.t� -. .r::sG '.1.}.Wr.•.. ...� -. ...,.. •'._.. tY. iw:... 't�::5:.i.3<uL:�....�.iwti:r�.i. GAAPPHAN\LANDUSE .APP\SHTPLTPT.DOC. 06/15/00 r LAND SURVEYOR'S CERTIFICATE: Any survey submitted for a short plat shall include a certification with the seal of and signature of the surveyor responsible for the survey and final plat with the following statement: registered as a land surveyor by the State of Washington, certify that this plat is based on an actual survey of the land described herein, conducted by me or under my supervision; that the distances, courses and angles are shown thereon correctly; and that monuments other than those monuments approved for setting at a later date, have been set and lot corners staked on the ground as depicted on the plat." SEATTLE - KIN COUNTY HFs'ALTH DEPARTMENT'S APPROVAL (This is on require i'flots are served by septic systems:) Examined and approved by the Seattle-Kin +linty Health Department this day of Director There are no delinquent special assessments, d all s•- cial assessments on any of the property that is dedicated as streets, alleys or for other public use are paid in f 1. Examined and approved by the this day of Finance Director Deputy King County Treasurer , 20 C" CERTIFICATE (only requi • d if land is to b‘ dedicated to the City) , 20 of Tukwila Finance Department COUNTY TREASURER'S CERTIFICATE I certify that all property taxes are paid and that a deposit has been made in sufficient amount to pay the taxes for the following year; that there are no delinquent special assessments certified to this office for collection; and that all special assessments on any of the property herein dedicated as streets, alleys, or for other public use are paid in full. This day of , 20 King County Treasurer :a ativ f a t .` u' k} t as cis COUNTY ASSESSOR'S APPROVAL Examined and approved by the Department of Assessments this day of , 20 Deputy King County Assessor RECORDING CERTIFICATE King County Assessor Filed for record at the request of the City of Tukwila this day of , 20 , at minutes past M, and recorded in Volume of Plats, on page , Records of King County, Washington. Deputy Director, King County Director, King County Assessor Department of Records and Elections Department of Records and Elections TUKWILA SHORT SUBDIVISION COMMITTEE APPROVAL Reviewed and approved by the Short Subdivision committee and hereby certified for filing this day of ,20 Chair, Short Subdivision Committee Z W . U O 0 W =' J i- W O �Q c = a z �.. F— O Z 2 0' ON ; w la H O. Lu z. UI O Z KING COUNTY RECORDER'S FORMAT REQUIREMENTS Document Standardization • The first page of all documents must have: > A three -inch margin at the top and a one -inch margin on the sides and bottom (if using letter or legal sized paper). > The following key information: • Return address ♦ Document title and titles • Reference numbers of documents assigned or released (if applicable) ♦ Names of the grantors and grantees with reference to pages where additional names can be found • Abbreviated legal description • Assessor's property tax parcel number or account number A coversheet may be used to fulfill the three -inch top margin & indexing information requirements list above, however, the requirements listed below must still be met or the document will be returned for compliance. Also, when a coversheet is used one dollar will be added to the recording fee for the additional page on the document. • The second page and all succeeding pages must have a one -inch margin on all sides (unless document is using record of survey format, 18" x 24 "). • No attachments are allowed on the pages. • The font size must be at least 8 point. • The page size can be no larger than 8 'A x 14 (unless in record of survey format, recorded at Condominium and Plat desk). • The paper must be of a weight and color capable of producing legible images. • The ink must be a color that is capable of being imaged. • All seals must be legible and capable of being imaged (pressure seals must be smudged) G:\APPHAMLANDUSE.APP \SHTPLTPT.DOC, 06/15/00 �W..4,1 t:it'.'SL �. `'! ps4S .�'i:•! c _. _ �.,, �. F, .a tvNlk.,t -t tibfi2. 1. u'riz:fi: to :�C�7:n:r�c_N - 1:LS:+.oc..:.taavri4.VZy.�nn ' e+:liit3.a STATE OF WASHINGTON CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan(Tci.tukwila.wa.us AFFIDAVIT OF OWNERSHIP AND HOLD HARMLESS PERMISSION TO ENTER PROPERTY ss COUNTY OF KING The undersigned being duly sworn and upon oath states as follows: I. I am the current owner of the property which is the subject of this application. 2. All statements contained in the applications have been prepared by me or my agents and are true and correct to the best of my knowledge. 3. The application is being submitted with my knowledge and consent. 4. Owner grants the City, its employees, agen engineers . tors or ther representatives the right to enter upon Owner's real property, located at jL y 3 5 • / p • � 7' for the purpose of application review, for the limited time necessary to complete that purpose. 5. Owner agrees to hold the City harmless for any loss or damage to persons or property occurring on the private property during the City's entry upon the property, unless the loss or damage is the result of the sole negligence of the City. 6. The City shall, at its discretion, cancel the application without refund of fees, if the applicant does not respond to specific requests for items on the "Complete Application Checklist" within ninety (90) days. EXECUTED at / (.0 (city), Waif (state), on Sc'®T L eL S\cLvo14 Lb..a (Pr t Name 'v Sa • /I c1 zoo s , j b 54 (Address) SUBSCRIBED AND SWORN TO BEFORE ME ON THIS 2 \ DA Y OF My Commission expires on s / ne m.er) .//// (S !` (Signature) On this day personally appeared before me to w-t S hax`.4- � to me known to be the individual who executed the foregoing instrument and acknowledged that he /she signed the same as his /her voluntary act and deed for the uses and purposes mentioned therein. NOTTAAI ' PUBLIC in a r the State of ashington .- - / residing at 3 7 ) . , 5 / 4 L( � ,: 54 r e (G oU r (e- Lv C ,20 d / RECEIVED CITY OF TUKWILA JUN 202001 PERMIT CENTER 20 0 ty Seattle, Washington 98104 -1511 PERMIT CENTE Senior Title Officer, Mike Sharkey (mikesharkey @pnwt.com) Assistant Title Officer, Curtis Goodman (curtisgoodman @pnwt.com) Assistant Title Officer, Russell T. Lund (russelllund @pnwt.com) Unit No. 12 FAX No. (206)343 -1330 Telephone Number (206)343 -1327 Scott Label 4226 South 146 Street Tukwila, Washington 98168 Attention: Scott Your Ref.: Label GENTLEMEN: CHARGE: TAX: $200.00 $ 17.60 r PACIFIC NORTHWEST TITLE COMPANY OF WASHINGTON, INC. 215 Columbia Street BOUNDARY LINE ADJUSTMENT CERTIFICATE SCHEDULE A In the matter of the instrument submitted for your approval, this Company has examined the records of the County Auditor and County Clerk of King County, Washington, and the records of the Clerk of the United States Courts holding terms in said County, and from such examination hereby certifies that according to said records the title to the following described land: Lot 4, Block 5, Adams Home Tracts, according to the plat thereof recorded in Volume 11 of Plats, page 31, in King County, Washington. IS VESTED IN: SCOTT B. LABEL and SHARON LABEL, husband and wife SUBJECT TO THE FOLLOWING EXCEPTIONS: As on Schedule B, attached hereto. RECORDS EXAMINED TO: June 2001 at 8:00 a.m. EST TITL C. PACIFI SHI Title Order No. 439418 CERTIFICATE FOR FILING PROPOSED BOUNDARY LINE ADJUSTMENT NORT TON, ike Sharkey Senior Title Officer Unit No. 12 TOTAL CHARGE: $217.60 RECEIVED CITY OP TUKWILA JUN 2 0 2001 OF Z � W JU U O CO CO LLI W = F- W �. • Q co d. H =. Z 1.- I— O Z I— LL! O p U 0 0 I— W • W I— u' O tii U = O ▪ I— Z GENERAL EXCEPTIONS: BOUNDARY LINE ADJUSTMENT CERTIFICATE Schedule B Order No. 439418 1. Rights of claims of parties in possession not shown by the public records. 2. Public or private easements, or claims of easements, not shown by the public record. 3. Encroachments, overlaps, boundary line disputes, or other matters which would be disclosed by an accurate survey or inspection of the premises. 4. Any lien, or right to a lien, for services, labor or material heretofore or hereafter furnished, imposed by law and not shown by the public records, or Liens under the Workmen's Compensation Act not shown by the public records. 5. Any title or rights'asserted by anyone including but not limited to persons, corporations, governments or other entities, to tide lands, or lands comprising the shores or bottoms of navigable rivers, lakes, bays, ocean or sound, or lands beyond the line of the harbor lines as established or changed by the United States Government. 6. (a) Unpatented mining claims; (b) reservations or exceptions in patents or in Acts authorizing the issuance thereof; (c) water rights, claims or title to water. 7. Any service, installation, connection, maintenance, capacity, or construction charges for sewer, water, electricity or garbage removal. 8. General taxes not now payable or matters relating to special assessments and special levies, if any, preceding the same becoming a lien. 9. Indian tribal codes or regulations, Indian treaty or aboriginal rights, including, but not limited to, easements or equitable servitudes. Z W J U U O W J = H � W O ' J u_ co d . = W I- _ Z 1- 1- O Z I— W uj U ° • N a 1— W W W Z . U N O ~ Z SPECIAL EXCEPTIONS: 1. GENERAL AND SPECIAL TAXES AND CHARGES: FIRST HALF DELINQUENT MAY 1, IF UNPAID: SECOND HALF DELINQUENT NOVEMBER 1, IF UNPAID: rg YEAR: 2001 TAX ACCOUNT NUMBER: 004000 - 0615 -09 LEVY CODE: 2414 CURRENT ASSESSED VALUE: Land: $57,000.00 Improvements: $128,000.00 GENERAL TAXES: SPECIAL DISTRICT: 2. DEED OF TRUST AND THE TERMS AND CONDITIONS THEREOF: GRANTOR: Scott B. Label and Sharon Label, husband and wife TRUSTEE: Pacific Northwest Title Company, a Washington corporation BENEFICIARY: AMOUNT: DATED: RECORDED: RECORDING NUMBER: Title to this property was examined by: Jim Isom AMOUNT BILLED $2,663.06 AMOUNT BILLED $0.94 END OF SCHEDULE B Order No. 439418 BOUNDARY LINE ADJUSTMENT CERTIFICATE SCHEDULE B Page 2 AMOUNT PAID $1,331.53 AMOUNT PAID $0.47 Washington Mutual Bank $128,000.00 November 15, 1998 December 1, 1998 9812010796 AMOUNT DUE $1,331.53 AMOUNT DUE $0.47 The amount now secured by said Deed of Trust and the terms upon which the same can be discharged or assumed should be ascertained from the holder of the indebtedness secured. Any inquires should be directed to one of the title officers set forth in Schedule A. �u::u.s%ie.ixti_ .�'h'.�M��S.�}�. %p,.41' ':C�nt'AC Si4+'�t�r����id�aA�r � � i3 i�i iil • l � ' ).. o� a 65.E 0) 3 3 4 4 4 O 2 Ill M T 0 'ICi 7 , O — b 0 s• 6 6 o oo f k x 4 - ` I oar v.•" � 4 O: e 1 �_�� •. 1 • j.t A _ - Sr JP LL1 n r� •4,.l1•!II • M • I 1: - 2 •4 y4 4705 �jf / r A t Z, .1 If w �1 1. • -..,. 0 • a •IP • •: • H j14.e • so .. 0 a. )P , r ;.)f ` .. ;••.!r•. C., 1 •00 i.� :i• ..4J. iJ •• . 2 It r, • • •S. I 4 2t• 23 oar v.•" � 4 O: e 1 OP I +, e� Sr JP LL1 n r� L J � e _ 2 • h _ o1V9 t l . t .V•3 II •VII IM .1 •o - -.z II 0144 •LI •i0 . /O • II 5.4 Oy1 6 05' 1 .1.•1f e •p • Al I III S, /9 'di S'f• . ) •_$ T..,- Order No. K of 1 411TH 1)14.10 0 a M 5 of40 ST. III S 1 14io gDctvns ✓tee 1 rcic fs Vc 1 • 11 5 3 1 PACIFIC NORTHWEST TITLE COMPANY 1 NfPORTANT: This is not a Plat of Survey. It is furnished as a convenience to locate he land indicated hereon with reference to streets and other land. No liability is ►ssumed by reason of reliance hereon. .537 1 of <4 Si " e II • III I• N oSS• Z• r • • y O z FOR STAFF USE ONLY Sierra Type: P -SS Planner: - T:).0,1,0 fAce, File Number: LO 1_ 0 L Application Complete ( Date: z2,- 01) Project File Number: Application Incomplete . (Date: 5 11 _01 ) Other File Numbers: CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E - mail: tukplan(@,ci.tukwila.wa.us APPLICATION ME OF PROJECT/DEVELOPMENT: 5 Z4418 EL- LOCATION OF PROJECT/DEVELOPMENT: (Give street address or, if vacant, indicate ot(s), block and subdivision, access street, and nearest intersection. LIST ALL TAX LOT NUMBERS.. 0 cf 3 Soy I V6 sr ame: Township:. Range: ormation may be found on your tax statement) 26 ' So • s, 43 47 , FAX: 210 6 9 g © 720 _alritri I a � r Date: 3 0 VELOPMENT COORDINATOR he individual who: •: has decision making authority on behalf of the applicant in meetings with City staff, has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and •.: is the prisary contact with the City to whom all notices and reports will be sent. &DT 1 LOIS EL G:\ APPHAN\LANDUSE.APP\SHTPLTPT.DOC, 06/15/00 SHORT PLAT (P -SS) RECEIVED CITY OF TUKWILA JUN 20 ?_001 PERMIT CENTER June 12, 2001 Dear Deborah: Deborah Ritter City of Tukwila Dept of Community Development 6300 Southcenter Blvd #100 Tukwila, WA 98188 z D CITY of TUKwnA �U 0 u) o 1.11 1 RECEIVED Re: Label 4 -Lot Short Plat U o at 4643 So. 146th St. JUN 2 Q 2001 uj L01 -034 (Short Plat) PERMIT CENTER u_ a = a I- Ili Z 1- 0 I have completed the following changes as per your letter of May 11 W w ° concerning the above referenced property: U • m O U � F- The new short plat application form is attached. _ uj o Four copies of the survey with the modifications are attached. w z U= O ~ The surveyor replaced his certificate on the revised plan as per the new requirements. 3a. The names of the adjacent owners have been marked on the site plan. b. The location, floor area and setbacks have been marked on the site plan. c. Lot area, lot line dimensions and widths of each lot have been marked on the site plan. d. No existing easements were recorded, but the proposed easements have been marked on the site plan. e. The existing topo at two foot countour intervals are marked on site plan, but the surveyor was unable to to secure approval the approval of the adjacent property owners to measure the contour lines on their property. fC:i.r.?e(•.u, ti% Isiwb::"• u''{.�.Gfi!:.Yi"+Sa'vtti.c3M+L': 4. I have attached an 81/2 x 11 inch reduction of each of the revised plans. 5. I have also attached a title report dated within 30 days of this revised application filing. If you have any further questions or need additional revisions please contact me. Sincerel Scott Label 4226 So. 146th St Tukwila, Wa 98168 (206) 243 -4725 z Q • z JU . oO �.o rn w: w = i n 0, Q =a w z�. 1_O w o. .w w U; o. z. — = ; O ~ z FINAL PLAT DOCUMENTS The recording documents submitted for final approval must be on mylar, in record of survey format, meet all of the King County recording requirements and contain the following signature blanks, where applicable. SIGNATURES DECLARATION Know all men by these present that we, the undersigned, owner(s) in fee simple of the land herein described do hereby make a short subdivision thereof pursuant to RCW 58.17.060 and acknowledge that said subdivision shall not be further divided in any manner within a period of five years, from date of record, without the filing of a final plat. The undersigned further declare this short plat to be the graphic representation of said short subdivision and the same is made with the free consent and in accordance with the desire of the owner(s). . In witness whereof we have set o N Name: (Provide a blank for each owner) STATE OF WASHINGTON County of King Why Public State of Washington LUCY M. GARZA My Appointment Expires Aug 14, 2004 STATE OF WASHINGTON County of King h , ds an ' seals. GIVEN under my hand and official seal this Short Plat Number Name: Name: II '� a , Sti ra+� let 10� On this day personally appeared before me S�-C' �I L" � to me known to be the individual who executed the foregoing instrument and acknowledged that he /she signed the same as his /her voluntary act and deed for the uses and purposes mentioned therein. GIVEN under my hand and official seal this ` day of l/Ll c.`Y , 20 0 I Signature: � Name of commissioned: Title: � My appointment expires: day of ,20 L ■ 9 r e.047c q On this day personally appeared before me individual who executed the foregoing instrument and acknowledged that he /she signed the same as his /her voluntary act and deed for the uses and purposes mentioned therein. to me known to be the Signature: Name of commissioned: Title: My appointment expires: Fw`y.7`:v441:Artv,V ia a.: i.14 May 11, 2001 Mr. Scott Label 4226 South 146th Street Tukwila, Washington 98168 Re: Label 4 -Lot Short Plat at 4643 South 146th L01 -034 (Short Plat) Dear Mr. Label: City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director We have received and reviewed your documentation for the above - referenced applications, submitted to us on May 9, 2001. We have the following comments. Your Short Plat application has been found to be incomplete. In order to continue processing your applications there are additional items that must be submitted to the Department of Community Development. These items are listed below. 1. The short plat application forms you submitted are five years old and no longer used by the City. We are enclosing the correct Short Plat application packet. Please complete and return the Application Form, Application Checklist Table, Growth Management Act information and Affidavit of Ownership. We also enclose a copy of Title 17, Subdivisions and Plats, for your reference. 2. Survey LU d9` Please provide four copies of the survey, modified to include the following per TMC 17.04.060(B): A statement to be signed by the Public Works Director approving the survey data, the layout of the streets, alleys and other rights -of -way, design of bridges, sewage and water systems, drainage systems and other structures (per TMC 17.04.060(B)(1). b. A certificate bearing the printed names of all persons having an interest in the subdivided land, signed by the persons and acknowledged by them before a notary public, consenting to the subdivision of the land and- reciting-a-dedication_by_them of all - land- shown-on the - plat to be and -a waiver-by-them and their successors of all claims for damages- against any`gbvernmental._authority arising _from.the.construction and maintenance of public facilities and public property within.the•subdivision (per -TMC -17.04.060(B)(2).. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 yaysirw'.3ava4u, Mr. Scott Label May 11, 2001 Page 2 LuA\W \ lv f D c. A certificate with the seal of and signature of the surveyor responsible for the survey and final plat with the following statement: "I, , registered as a land surveyor by the State of Washington, certify that this plat is based on an actual survey of the land described herein, conducted by me or under my supervision; that the distances, courses and angles are shown thereon correctly; and that monuments other than those monuments approved for setting at a later date, have been set and lot corners staked on the ground as depicted on the plat." d. Certification from the King County Treasurer that all taxes and assessments for which the property may be liable have been duly paid, satisfied or discharged as of the date of certification. e. Recording Certificate for completion by the King County Department of Records and Elections. City of Tukwila Finance Director Certificate that states there are no delinquent special assessments, and that all special assessments on any of the property that is dedicated as streets, alleys or for other public use are paid in full at the date of certification. Certification by the Public Works Director that the subdivider has complied with one of the following (per TMC 17.04.060(B)(9): All improvements have been installed in accordance with the requirements of this title and with the preliminary plat approval, and that original and reproducible mylar or electronic records in a format approved by Public Works and meeting current Public Works drawing standards for road, utility and drainage construction plans certified by the designing engineer as being "as constructed" have been submitted for city records. An agreement and bond or other financial security have been executed in accordance with TMC 17.24.030 sufficient to assure completion of required improvements and construction plans. h. A certificate of approval to be signed by the DCD Director,, Public = Works- Birector- - and -Fire- Chief- (per-=TMCz eL 06Q(1 3. Please provide four copies of the site plan, modified to include the following per TMC 17.12.020(A)(8): a. The owners of the adjacent land and the names of any adjacent subdivisions. b. Location, floor area and setbacks of all existing structures on the site. c. Lot area, lot line dimensions and average widths for each lot. Mr. Scott Label May 11, 2001 Page 3 Sincerely, Deborah Ritter Associate Planner Enclosures z Iz ct W 000 � J = H 0 5. Title report dated within 30 days of the application filing which clearly establishes the 2 following: the status of the parcel(s) as legal lot(s) of record, ownership, all known g 5 easements and encumbrances. a d Upon receipt and approval of Items 1 through 5 above, the application will be deemed w "complete" and the City will commence technical review. However, the application will expire if z we do not receive the requested items "within 90 days of this letter's date (August 14, 2001), z 0 unless an extension is granted pursuant to Section 18.104.070(E) of the Tukwila Municipal W W . Code. If you should have any questions, please contact me at 206 - 431 -3663. n o U o D o E- W w LLO Ui Z O 0 F- _. 0 z d. Location, dimension and purpose of all existing and proposed easements. Provide recorded documents which identify the nature and extent of existing easements. e. Existing and proposed topography at two -foot contour intervals, extending to five feet beyond the project boundaries. 4. A high quality 8 -1/2" x 11" reduction of each of the revised plans. JOINT MAINTENANCE AGREEMENT Notice is hereby given that Scott and Sharon Label, owners of the following parcel of land: Block 5, Lot 4, Adams Home Tracts do hereby establish this Agreement and convey unto all present and future owners, their heirs and assigns, of all or any of the foregoing described parcel of land, the maintenance of the easement(s) granted and conveyed in this proposed Tukwila Short Plat, as described below: 1. Water Line, Power Line and Cable Line (TV and Telephone): It is agreed that the cost of any repair or maintenance for the main water line, power line and cable lines (television and telephone) shall be the joint responsibility of all present and future owners of the aforementioned parcel of land. 2. Sewer Line and Stormwater Line: It is agreed that the cost of any repair or maintenance of the sewer line or stormwater line shall be the joint responsibility of all present and future owners of the aforementioned parcel of land, except that the owners of a lower parcels shall not be responsible for the part of the sewer /stormwater line(s) above their connection. This Agreement shall be binding upon all present and future owners of the parcels created under the aformentioned document. Sharon Label - ner Date D. PROPERTY OWNER DECLARATION The undersigned makes the following statements based upon personal knowledge: I am the current owner of the property which is the subject of this application. All statements contained in the application are true and correct to the best of my knowledge. The application is being submitted with my knowledge and consent. I understand that conditions of approval, which the City and applicant have jointly agreed may not be completed prior to final approval of the construction (e.g., final building permit approval) will be incorporated into an agreement to be executed and recorded against the property prior to issuance of any construction permits. I declare under penalty of perjury under the laws of the State of Washington and the United States of America that the foregoing statement is true and correct. EXECUTED Tog W r co (city), (state), on ice 1 (Print Name) cfv) So. l 1 16 , ST- (Address) 206 ?-43 - cf ? 2c 5c/fp TT EL Use additional sheets as needed for all property owner signatures. Part A: (To Be Completed by Applicant) :,. Purpose of Certificate: ❑ Building Permit ❑ Preliminary Plat or PUD ❑ Other S Short Subdivision ❑ Rezone Proposed Use: Residential Single Family ❑ Residential Multi - Family ❑ Commercial ❑ Other Applicants Name: 5c.„40( j 6,1 EL- Phone: 2_6G 2-q3-y72-5 Property Address or Approximate Location: 446 (03 s' , C t - - Legal Description(Attach Map and Legal Description if necessary): A Lea/ <--, tor z/ , rnvi S r i v t'u� 77 -r—<S 72, 00 90,0 - -O &15 Part B: (To Be Completed by S - er Agency `, , . ; :> 1. 0 a. Sewer Service will be provided by side sewer'connection only to an existing 6 size sewer 0 feet from the site and the sewer system has the capacity to serve the proposed use. OR ❑ b. Sewer service will require an improvement to the sewer system of: ❑ (1) feet of sewer trunk or lateral to reach the site; and /or ❑ (2) the construction of a collection system on the site; and /or ❑ (3) other (describe): 2. (Must be completed if 1.b above is checked) ❑ a. The sewer system improvement is in conformance with a County approved sewer comprehensive plan, OR ❑ b. The sewer system improvement will require a sewer comprehensive plan amendment. 3. la a. The proposed project is within the corporate limits of the District, or has been granted Boundary Review Board approval for extension of service outside the District of city, OR ❑ b. Annexation or BRB approval will be necessary to provide service. 4. Service is subject to the following: a. District Connection Charges due prior to connection: 00 GFC: $ 5' � LFC: $ UNIT: $ TOTAL: $ (Subject to Change on January 1st) King County /METRO Capacity Charge: Approximately $750 /residential equivalent will be billed directly by King County after connection to thei sewer system. b. Easements: ❑ Required ❑ May be Required c. Other: C 1L. 0 4- 1/zjiS /r CERTIFICATE OF SEWER AVAILABILITY/NON-AVAILABILITY I hereby certify that the above sewer agency information is true. This certification shall be valid for one year fro , i(jj - date of signature. By .q / II j /'iR- C OW ag: l; J e itosTR00, Certificate of Sewer Availability OR ❑ Certificate of Sewer Non - Availability 14816 Military Road South P.O. Box 68063 Tukwila, WA 98168 (206) 242 -3236 /14 4 `'- GS Title -; FA?) Date PART A: (To be completed by applicant) Site Address (Attach map and Legal Descrip on showing hydrant location and size of main): q6 c(3 , /V6 Owner Information: Agent/Contact Person: Name: SCE L i .67L. Name: p ' Address: L /2--2-4; -S , / t 7 / 6 4-4 5/..97A. Address: / 1 &- Phone: 6 (2.- cir 7 2 S " Phone: This certificate is for the purposes of: ❑ Residential Building Permit ❑ Preliminary Plat 3 Short Subdivision ❑ Commercial /Industrial Building Permit ❑ Rezone ❑ Other Estimated number of service connections and meter size(s): 3 Vehicular distance from nearest hydrant to the closest point of structure /6X, ft. Area is served by (Water utility di trict): W *J 6571 (C'T` / • Owner /Agent Signature: ,. Date: PART C: (To be completed by governing jurisdiction) Water Availability: ❑ Acceptable service can be provided to this project ❑ Acceptable service cannot be provided to this project unless the improvements in item C2 are met. ❑ System isn't capable of providing service to this project. Minimum water system improvements: (At least equal to B2 above) (Use separate sheet if more room is needed) Agency /Phone By Date CITY OF tIJKWILA Permit Centt 6300 Southcenter Boulevard, Suite 100,: Tukwila, WA 98188 Telephone: (206) 431 -3670 Certificate of Water Availability PROJECT #: PART B: (To be completed by water utility district) � t The proposed project is located within The improvements required to upgrade the water system to • ' ng it into compliance with the utilities' comprehensive plan or to meet the minimum flow requirements of the project before connection: (Use separate sheet if more room is needed) Based upon the improvements listed above, water can be provided and will be available at the site with a flow of 1' O C gpm at 20 psi residual for a duration of 2 hours at a velocity of G2 fps as documented by the attached calculations. I hereby certify that the above information is true and correct. p Agency /Phone( 2.0F, 74 1 H-ha (Required only if outside City of Tukwila water utility district) By (City /County) _.3 zl Date WTRAVAIL.DOC 6/5/96 V x :CiKYA.SY rM . t, !?'r 3n spS,l, '3?'?r7� N ..t!`) +a�wry rr:;wP;r rar >.s,v1 w ro.r.a CITY C`' TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 APPLICATION FOR STAFF USE ONLY Planner: (: ecelpt Number:' Application Complete 51) Application Incomplete (Date. Project File #: Other. File It: Other File #: I. PROJECT BACKGROUND A. NAME OF PROJECT /DEVELOPMENT: S 7'r B. LOCATION OF PROJECT/DEVELOPMENT: j� R /DEVELOPMENT: , � STREET ADDRESS: `� & g 5 ' l7'4 .s ASSESSOR PARCEL NUMBER: O 0 V O©O - 106/S -3- 6 2 �, LEGAL DESCRIPTION: obi.-49e- -49 7 ` / A l S / � , �fb Er rig-s SHORT PLAT (P -SS) Quarter: Section: Township: Range: (This information may be found on your tax statement) c. CONTACT' (Primary contact regarding the application, and to whom all notices and reports shall be sent) NAME: ADDRESS: L t Z S 2 . / Lf 64 " 4 /' PHONE: 6 2- - ( 1 7 SIGNATURE: .i�J ��!/�1� / -t/ SHTPLTPT.DOC 7/5/96 DATE: CITY OF 'UKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 r'. SHORT PLAT APPLICATION CHECKLIST z Z Ce 6 00 C 0 CD LEJ J � LL wo g • a = w t- I- 0 Z — Application Checklist U) gl Application Form (4 copies) and $200 fee 0 E-- w ❑ Administrative Planned Residential Development application if wetlands, streams or their buffers, or slopes over 20 %, are on site. LL o t1[k A complete SEPA Checklist Application if project is not exempt � . 0 p.1 l i ❑ Other applicable land use applications Z The materials listed below must be submitted with your application unless specifically waived in writing by the Department. Please contact the Department if you feel certain items are not applicable to your project and should be waived. Application review will not begin until it is determined to be complete. The initial application, materials allow starting project review and vesting the applicant's rights. However, they in no way limit the City's ability to require additional information as needed to establish consistency with development standards. Department staff are available to answer questions about application materials at 206 -431 -3670. RETURN THIS CHECKLIST WITH YOUR APPLICATION APPLICATION FORMS: PLANS: 71 A vicinity map showing location of the site 51 Survey Map with original surveyor's stamp (4 copies) • The survey map should be a scaled drawing on paper no smaller than 8 -1/2" by 14", and should include the following elements: • Existing lot lines (dashed lines), including: • Dimensions and bearings of all existing lot lines and identification of existing property corners. • Existing structures with addresses • Existing lot numbers or letters (e.g. Lot A or Lot 1) • Proposed lot lines (solid lines), including:. • Dimensions and bearings of all proposed lot lines, and identification of proposed . property corners SHTPLTPT.DOC 9/30/96 • Proposed lot r' =nbers or letters (e.g. Lot A or Lot 1) --- 61 Total lot or parcel sizes in square feet Mean lot width of all lots p Dimensions of existing and proposed utilities. Utility information to also include: • For drainage systems show how water is to be retained on site or detained /conveyed off - site (wet ponds /detention facilities /percolation pits, swales and pipes) • Invert elevation of pipe(s) at proposed connection point(s) to downstream facilities. Existing and proposed utilities easements. Clearly identify what is proposed and what is existing: Provide documentation of existing easements. Prototypical development plan and lowest floor elevation of each proposed structure (Referenced to NGVD datum) to demonstrate development feasibility on the proposed lots. ?❑. Width and names of existing adjacent public rights -of -way. O s Existing and proposed access roads, access driveways, including locations; grades.(slope), widths and. lengths. Also include turnarounds or hammerheads (where necessary) serving the subdivision. Clearly identify what is proposed and what is existing. Provide documentation for existing easements. Location of nearest fire hydrants (with water district identification numbers shown), distance to property and any proposed hydrants or sprinkling needed for adequate fire protection. 1 .4 • Location, size and material of utility pipes for sewer systems and location of drain field and septic systems. Existing trees over 4" in diameter by species. OTHER REQUIREMENTS: • Legal Descriptions (for all existing and proposed lots) with original surveyor's stamp (4 copies). cg Affidavit of Ownership ❑ Title report dated within 30 days. . 51 Sewer and water "availability letters" from Utility Districts (use City of Tukwila Water Availability Form for water availability). Not required if served by the City of Tukwila. ® Copy of maintenance agreement for common utilities and access (if privately owned). Topographical plan showing existing and proposed contours at 2' intervals for sensitive areas and their buffers (TMC 18.44). I/)4 ❑ Any sensitive areas studies required by TMC 18.45. ❑ Proof that the original lot(s) are recognized as separate lots pursuant to the provisions of TMC Title 17 and RCW ch. 58.17. . a filo 44-0 A list of any existing environmental documents known to the applicant that evaluate any aspect of the proposed project. A tree clearing plan, if required by TMC 18.54. SHTPLTPT.DOC 12/12/96 — �,, - r • .7i) .i• • a • �. w1 01 4•1) �• a A w r . lo • i • —rare • aM N•4 IN ► • 1 • • • + f• 13coes-e Lo-t 4 4111 a. _ Q M 004000 - II 1i 1 H , • I i I.1 ••••I sail s art 0•1f - •f I. _ •, J //•a I / I I.11*I 4 - ..,..- ilia. i0 •.' • 4rxi 7Ris •f.. •S(1•I C\ Davn$ ✓tee rCA S Vol. i1 P5 31 PACIFIC NORTHIATEST TITLE COMPANY Order No... CA (OM .,gel K. ' -- IMPORTANT: This is not a Plat of Survey. It is furnished as a convenience to locate the land indicated hereon with reference to streets and other land. No liability is assumed by reason • reliance as.' 3S r MN •r • . I I LA 417 41• ,1. • I• Ma• •a h .1•s' z Z � 6 00 co J Z . •tr 247.7 • • " • .• zi z < • w < • 2 w O 0 (f) (OW W J • u_ w 0 2 a_ < w I a f- Z 0 Z F— O H W u j 1 0 r— UL C) 2 : 0 - I 0 1- z D i Di -,Y, :1• •,.. 4.i*./ . sea. • . • a - i.:1 );.,N h I Z•t io-',11.•::::: t :- . .,...,,,.„ . ;;4.. 4 - :1- - ' - '4 •e' •; .' ,..... ",. 44., .x. . -.. . LPt h';■%;‘` 1 •,.. • ;'1.1"t , . • i,.1 „4 O F fF77 .. T.:, F.7- ..-. , ... .,, so:. i l . ',Ii .... ''' ' 7, -s."' '.',.i !' .-. ,.....,., ofrt u•s I • I— HZ • Ui W _J O 0 (/) a • W LL1 • LL -J Li j 0 CL < ° z H O Z I-- W w 0 O D- O H w w I LU u_ 0 w 0 1— Z CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS Due to the change in lot configuration and surface water drainage design, a new drainage review was performed with the following results. In addition, recent project review discussions within the City has led the Public Works Department to adhere more closely to the adopted surface water standard, 1998 King County Surface Water Design Manual (KCSWDM). 1. DRAINAGE REVIEW Summary This project is a single family residential project that adds approximately 13,800 SF of new impervious surface. The total site is approximately 39,136 SF and the area of disturbance will be about 24,848 SF, more than 35% of the site. The storm drainage for this project must be designed per a Full Drainage Review and flow control per that standard.. If we assume each house is 1650 SF (smallest shown on the plans) and if the roof drainage can be exempted, then the total added impervious surface is approximately 8,900 SF. Projects /short plat/label 101 -034 comm 3 1 Project Name: Label Short Plat 4643 S. 146 Street 0_18 00 File #: L01 -034 w LLI J h- Date: 02.15.01 w o Reviewer: L. Jill Mosqueda, P.E. g a co Subject: Comments on Revised Design Provided on Feb 13, 2002 z o w U � The City Of Tukwila Public Works Department has the following comments o F= regarding your application for the above permit. Please contact Jill Mosqueda at w u (206) 433 -0179, if you have any questions regarding the following comments. LL o .z 0 H z Roof Downspout Controls Per 1998 KCSWDM, 5.1, p 5 -3: "Essentially, roof downspout infiltration is required unless determined to be not feasible or not applicable using the evaluation procedure in 5.1.1, p 5 -5." z �z �w 00 (1) J 2 w w u_Q _ • a Z �- o Z ▪ ~ U • 0 2. The plans shall include the notes shown on 4.2.2.0 and shall also provide o material descriptions for the trench lining and backfill. _ 3. The plat, not the site plan, shall show the following note: z Single family residences constructed on lots created by this subdivision 0 shall provide downspout dispersion systems according to the details o I- shown on the approved building permit plans z Per chapter 5 of the KCSWDM, the Procedure For Evaluating Feasibility of infiltration spelled out in KCSWDM 5.1.1 must be followed to determine the appropriate type of roof downspout controls. The City will accept a soils report per 5.1.1 from a geotechnical engineer. The soils report shall meet the criteria in 5.1. In order to expedite the conclusion of this project, I recommend the Applicant hire a geotechnical engineer employed by a recognized geotechnical firm to perform the site evaluations. Comments on the Dispersion Trenches Shown On The Site Plan If, following feasibility evaluation, dispersion is the method of choice for the roof drains, 1. Provide the downspout dispersion system per 1998 King County Surface Water Design Manual details 4.2.2.0 , 5.1.1.B, and 5.1.2.A. KCRTS is not needed to size the trenches. Comments on ESC Plan It is preferable to provide measures to prevent erosion as a first line of defense and sediment retention as a second line of defense. Please provide erosion prevention measures, including seasonal cover requirements, per the KCSWDM Appendix D. Show the ESC as a separate plan sheet with appropriate construction notes. 2. RECORDING DOCUMENTS Provide the following separate documents for recording at King County for review before recording. All documents require the owner's notarized signature and shall be in recordable format. Projects /short plat/label 101 -034 comm 3 �W:tr..?ve: �r�:! �ct�+ e5�? + �, tcxc , �.ren +m.:'csav5:xnahclM.urr 2 Document 1 Condition for Building on Lots 2 -4 shall read: Future residential building permits shall comply with the approved drainage plan for this lot. The approved size and location of run off control Best Management Practices are indicated on the short plat drainage plans. Noncompliance with the site drainage requirements invalidates drainage approval for this lot. This document shall also include description of the drainage plan and specific maintenance requirements per KCSWDM. z ~w O 0 � 0 W I • u_ w Document 2 g Easement and maintenance agreement for roadway and hammerhead. u_ This document shall include an easement description, specific = a maintenance requirements and a drawing showing the easement location. Z The joint maintenance agreement provided is inadequate. o z}- Document 3 w D o Easement and maintenance agreement for sanitary sewer. .o cn This document shall include an easement description, specific maintenance requirements and a drawing showing the easement location. 0 u_ b Document 4 (needed if flow dispersion plan does not change) w z Easement for flow path from Lot 4 to Lot 3. 0 This document shall include an easement description, specific o maintenance requirements and a drawing showing the easement location. In addition, this document shall restrict activities on Lot 4 which will adversely affect the drainage path. 3. SITE PLAN REVIEW Since this site plan will be used for the Miscellaneous application to install required infrastructure for this short plat, the City expects to see complete site plans at this time. The site plans should include all of the following: A. A professional engineer, registered in Washington_state,- shall_prepare the plans, and stamp, date, and sign each sheet. Provide plans on 22" x 34" sheets B. Notes required for storm drainage, including erosion prevention and sediment control. Projects /short plat/label 101 -034 comm 3 3 Projects /short plat/label 101 -034 comm 3 C. The plans shall include: 1. Project name and address. 2. North arrow. 3. Scale for site work : 1 " =40' horizontal and 1 "= 4' vertical. 4. Property lines — existing and proposed 5. Easements and rights -of -way — Boundaries, dimensions, purposes and recording numbers. (Incomplete on submitted site plans) 6. Construction Notes (Missing on submitted site plans) 7. Existing and proposed topography for 15 feet outside the property lines. (Missing on submitted site plans) 8. Cut and Fill Volumes — Total cut and total fill as separate volumes. (Missing on submitted site plans) 9. Stockpiles - Quantity of soil or earth material in cubic yards to be excavated, filled, stored, or otherwise utilized on -site. Location and graphic representation of proposed excavations and fills, or on -site storage of soil and other earth material, and any on -site disposal. (Missing on submitted site plans) 10. Drainage Features- Location and graphic representation of all existing and proposed natural and man -made drainage features including water courses, lakes, and wetlands within 1 /4 mile upstream and downstream of the project boundaries. (Missing on submitted site plans) 11. Impervious Surface - Number of acres of entire parcel (to nearest 0.1 acre), total square footage of total impervious surface, and percent of site which will be impervious surfaces. (Missing on submitted site plans) 12. Structures — Footprints of buildings or structures on the property and the footprints of any buildings or structures on land adjacent to the site which are within 15 feet of property lines or which may be affected by the proposed grading operations. Provide finished floor elevation of proposed structures. (Missing on submitted site plans) 13. Existing and proposed, above - ground and below - ground infrastructure. 14. Streets, driveways, storm drainage, water supply, and sanitary sewer. 15. Erosion prevention and sediment control plan. Dimensions of clearing limits, sensitive areas and their buffers. (Missing on submitted site plans) 4 Flow Frequency Analysis Time Series File:predev.tsf Project Location:Sea -Tac - -- Annual Flow Rate (CFS) 0.224 0.149 0.526 0.132 0.332 0.228 0.231 0.855 Computed Peaks Peak Flow Rates-- - Rank Time of Peak 6 2/09/01 12:30 7 1/05/02 15:00 2 12/08/02 17:15 8 8/26/04 1:00 3 11/17/04 5:00 5 10/27/05 10:45 4 10/25/06 22:45 1 1/09/08 6:30 Flow Frequency Analysis Peaks - - Rank Return Prob (CFS) Period 0.855 1 100.00 0.526 2 25.00 0.332 3 10.00 0.231 4 5.00 0.228 5 3.00 0.224 6 2.00 0.149 7 1.30 0.132 8 1.10 0.745 50.00 I- . 0.990 0.960 0.900 0.800 0.667 0.500 0.231 0.091 0.980 z if Z' 2 6D. . 00. u) 0 W = -J W O: g Q z 1- O 11 .1 Lit 0 = U H: O W Z• U = : z �l'nw.1i! ?w 1w1ti.+w itii4. urfl�t.Lt�YiA': <.�+riAyaJMLdi14t'- v+lZ41i"'. - -- Annual Flow Rate (CFS) 0.295 0.233 0.752 0.236 0.444 0.377 0.418 1.14 Computed Peaks Flow Frequency Analysis Time Series File:dev.tsf Project Location:Sea -Tac Peak Flow Rates-- - Rank Time of Peak 6 2/09/01 12:30 8 1/05/02 15:00 2 12/08/02 17:15 7 8/23/04 14:30 3 11/17/04 5:00 5 10/27/05 10:45 4 10/25/06 22:45 1 1/09/08 6:30 Flow Frequency Analysis - - Peaks - (CFS ) 1.14 0.752 0.444 0.418 0.377 0.295 0.236 0.233 1.01 - Rank Return Prob Period 1 100.00 0.990 2 25.00 0.960 3 10.00 0.900 4 5.00 0.800 5 3.00 0.667 6 2.00 0.500 7 1.30 0.231 8 1.10 0.091 50.00 0.980 ��9 z I — Z J U` U0 : U W I ' J H W QQ O : LL <. = W Z F Zi- U co O I - W W! W ~ —O 0 Retention /Detention Facility Type of Facility: Detention Tank Tank Diameter: 2.00 ft Tank Length: 65. ft Effective Storage Depth: 2.00 ft Stage 0 Elevation: 0.00 ft Storage Volume: 205. cu. ft Riser Head: 2.00 ft Riser Diameter: 12.00 inches Number of orifices: 2 Full Head Pipe Orifice # Height Diameter Discharge Diameter (ft) (in) (CFS) (in) 1 0.00 2.42 0.224 2 1.00 2.00 0.108 4.0 Top Notch Weir: None Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation (ft) (ft) (cu. ft) (ac -ft) (cfs) (cfs) 0.00 0.00 0. 0.000 0.000 0.00 0.03 0.03 1. 0.000 0.025 0.00 0.05 0.05 1. 0.000 0.036 0.00 0.08 0.08 3. 0.000 0.044 0.00 0.10 0.10 4. 0.000 0.050 0.00 0.13 0.13 6. 0.000 0.056 0.00 0.15 0.15 7. 0.000 0.062 0.00 0.18 0.18 9. 0.000 0.066 0.00 0.20 0.20 11. 0.000 0.071 0.00 0.30 0.30 19. 0.000 0.087 0.00 0.40 0.40 29. 0.001 0.100 0.00 0.50 0.50 40. 0.001 0.112 0.00 0.60 0.60 52. 0.001 0.123 0.00 0.70 0.70 64. 0.001 0.133 0.00 0.80 0.80 76. 0.002 0.142 0.00 0.90 0.90 89. 0.002 0.150 0.00 1.00 1.00 102. 0.002 0.158 0.00 1.02 1.02 105. 0.002 0.161 0.00 1.04 1.04 108. 0.002 0.165 0.00 1.06 1.06 110. 0.003 0.171 0.00 1.08 1.08 113. 0.003 0.178 0.00 1.10 1.10 115. 0.003 0.187 0.00 1.12 1.12 118. 0.003 0.197 0.00 1.15 1.15 122. 0.003 0.207 0.00 1.17 1.17 124. 0.003 0.215 0.00 1.19 1.19 127. 0.003 0.219 0.00 1.29 1.29 140. 0.003 0.238 0.00 1.39 1.39 152. 0.003 0.254 0.00 1.49 1.49 163. 0.004 0.269 0.00 1.59 1.59 174. 0.004 0.282 0.00 1.69 1.69 184. 0.004 0.295 0.00 1.79 1.79 193. 0.004 0.308 0.00 1.89 1.89 200. 0.005 0.319 0.00 0 J Ol (n .. W N 000000IHCi NNNW W W (nHi - NN JI- W W (n�0 HII- I- 'NNNNC/ (t NNU1�]000F -N 00N�100-1(OU] r0 00 a x Hl-- 'NI-- 'NNNt NN(71J000N(D O O N -4 0 0 -1 (0 C 1< O . 0 --m 0 000000001 hi 000o0 00000000 - 0)W.Pacn(n01(n H as=. CO W CO W CO W W W W W N N N N N N N N N 0 0 1--' • • • • • • • • • • . . • • • • • • • • • • M O (0 00 �] m 01 .P W N I—' 0 t0 00 J m W W N N 'P-1F- N 00000000000000000000 s•(n.P 0 * * * *1-3 * *Di O * * li x- * O W** (p G eta W W W W W W W W W W N N N N N N N N N I ID l000 -JOl01.P W NN0(000Jm(n W NN F-- 00000000000000000000 N N N N N N N N N N N N N N N N N N N N 00000000000000000000 01010101010101 0000000000000000000000 0000000000000000000000 0000000000000000000000 0101010101 () 01 U1 01 01 (n U1 W W W W N F- O O O 00 —.] U1 .P N N O -J U1 W O —1 (0 N O1 W W U1 1-' C)' N 01 O W 0' l0 O 1-' N 01 J 61 N U1 W W 7') 7') OI(D0000C1 W 0000000000000000000N7') 1 O (0 01 N U1 O U1 (J'1 ft • • • 0 1y w tQ 00000000000000000000 • • • • • • • • • • • • • • • • • • • • 00000000000000000000 00000000000000000000 NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEARTHAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. E" O 1.0 O l0 00 0. 00 00 H R E s H o; 0 6 SECTION 1.1 DRAINAGE REVIEW 1. Adds 5,000 square feet' or more of new impervious surface, OIL �, 5 ec�`^^�^ ' 'At • Proposes to construct or modify a drainage pipe/ditch that is 12 inches or more in size/depth, or receives surface and storm water runoff from a drainage pipe /ditch that is 12 inches or more in size /depth, OR 3. Contains or is adjacent to a floodplain, stream, lake, wetland, closed depression, or other sensitive area as defined by the Sensitive Areas Ordinance (codified in KCC 21A.24), excluding seismic, coal mining, and volcanic hazard areas, OR 4. Is located within a Landslide Hazard Drainage Areal and adds 2,000 square feet or more of new impervious surface, OR 5. Is located within a Critical Drainage Area, OR 6. Is located within a rural zoned area subject to areal clearing limits' under KCC 16.82.150(c) and clears more than 7,000 square feet or 35% of the site, whichever is greater, OR 7. Is a redevelopment project proposing $100,000 or more of improvements to an existing high -use site, OR 8. Is a redevelopment project proposing $500,000 or more of site improvements and creates 5,000 square feet or more of contiguous pollution - generating impervious surface through any combination of new and/or replaced impervious surface. 1.1.1 PROJECTS REQUIRING DRAINAGE REVIEW Drainage review is required for any proposed project (except those proposing only routine maintenance, repair, or emergency modifications) that is subject to a King County development proposal, permit, or approval listed at right, AND which meets any one of the following conditions: King County Permits and Approvals Administrative Subdivision (Short Plat) Conditional Use Clearing Commercial Building Experimental Design Adjustment* Formai Subdivision (plat) Franchise Utility Right -of -Way Use Grading Preapplication Adjustment* Right -of -Way Use Shoreline Substantial Development* Single Family Residential Building Special Use* Unclassified Use Urban Planned Development Zoning Reclassification* Zoning Variance* *Note: If the proposed project will require subsequent permits subject to drainage review, then DDES may allow the drainage review to be deferred until application for the later permits. If drainage review is required for the proposed project, the type of drainage review must be determined based on project and site characteristics as described in Section 1.1.2. The type of drainage review defines the scope of drainage requirements which must be evaluated for project compliance with this manual. 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 resul�rom_ future homes within a plat or short plat . 2 Landslide Hazard Drainage Areas are delineated on a map adopted with this manual (see map pocket inside of back cover). 3 See Reference Section 3 for a list of Critical Drainage Areas. 4 See Reference Section 1 for a list of rural zoned areas where this threshold applies. This is the `project valuation" as declared on the permit application submitted to DDES. The cost thresholds in this manual are considered to be in 1998 dollars and may be adjusted on an annual basis using the local consumer price index (CPI). 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. The threshold of 5,000 square feet or more of contiguous PGIS shall be applied by threshold discharge area. 9/1/98 1998 Surface Water Design Manual 35mm Drawing #1 I i • SHORT PLAT NUMBER L01 --034 Label 4 —Lot Short Plat CITY OF TUKWILA WASHINGTON 30.2L—•—, \ �. ao proposed house I c locution , I LOT 2( 120.0' t 6:24 11.5' SCALE: 1 inch - 30 tt. VOL. /PAGE $.0 ..: 'i . t S` , 1 1 /4 0 + , t'' , .5 -g ) '1.-° E -D)1c195) , Cl � It12.EGEN ® Concrete Monument in Case % V `l. ÷ Monument X Tack in Lead or Nail DiskF �7 O Set rebar w /co j 6 Found pip reb AREAS LOT 1 (excluding easement) = 9,264 sq.ft. LOT 1 (including easement) = 14,443 sq.ft. LOT 2 (excluding easement) = 6,778 sq.ft. LOT 2 (including easement) = 11,667 sq.ft. LOT 3 = 6,515 sq.ft. LOT 4 = 6,511 sq.ft. S87'55'49 "E 20.00' ( w N M r 0 z 20.00' S87'55'49 "E LOT 3 LOT 1 A = 89'09'21" R = 20.00' L = 31.12' A = 90'50'27" , R = 20.00' t,I L = 31.71' N87'55'49 "W 46.23' 46.23' N87'55'49 " 0 = 90'50'39" R = 20.00' L. = 31.71' 0 = 89'09'33' R = 20.00' L = 31.12' LOT 2 0 N S87'55'49 "E LOT 4 S87'55'49 "E 20.00' O7 y E • . V) o ro N O w 0 z RECORDER'S CERTIFICATE filed for record this day of 19 at M in ook of at page at the request of aer• (1•1c4e.c er. L a,. u 7/4 fv yip Mgr. Supt. of Records ..15' Q -C Found 2" brass disk o in concrete in case 7/9/99 0 N . 144th Street Found 2" brass disk in concrete in case — 7/9/99 Found 1" pipe w /tack ../ in case — 2.77' east & 1.36' south. of caic. intersectiion. 7/9/99 Certificate No. \ O� 504.99' caic. So. 146th St. D , `)� dc` ° So . l e -te- =S So. 1.48th St. LAND SURVEYORS CERTIFICATE This Short Plat correctly represents a survey made by me or under my direction in conformance with tre requirements of the appropriate State Statute and Ordinance in •“ .f1. r1 99 e.JV,r063, . u CCa cu zu. La mI 20' easement fcr ingress, egress cni.: utilities '.9/'55'•19 "W • ?.ii'iti .fart qe ),.3e R 0 .•1'1 '/' I'F. Y FOR: IA I! IU := :.- i.i��illrenM`�' ?i av�it? %i!•i' ?ISi`a;a: �;:?if.`H'e*_...:a�t 20: proposed house • •location N 0 LOT 3 Scott Label 4643 — 46t4 Street TJkwila, WA 126.25' N87'55'49 "W 1 33.2' —J existing House #4643 ' M r z 63 1 . •.... ,�.� 63,1.1' 126.23, :........, .., chain link fence 044CnN1:4) ee`ti So p,6 S87'59'07 "E 111111111 I� 01 I II�II'.a.i.l.ijiill�l llli�I I I � � ���� III l� III lll inth WESTCOTT' �. Smra )an IL• LOT 1 SO1' PORTION OF' NE_1 /4 of NE_1 /4, s.2 10. proposed house location LOT 4 4 • i u E`. aZ : ai . 0 S87'55'4 DWN, BY Found rebar w /cap #9814 — 0.01' W. & 0.36' S. of caic. position. 20' ingress, egress & utilities easement 9 p,6 law fie. flo lop N• %%0 DATE 3/22/01 DATE FIELD 6/11/99 c t6 23 N., R. 4_E. W.M. vm 5 o a v ' voisou oxop RECEIVED CITY OF TUKWILA NOV 2 6 2001 PERMIT CENTER NOTE: Field data for this survey was obtained by direct field measurements. Angular and linear relationships were measured with a six second theodolite and electronic measuring device, supplemented by a steel tape. w C) O CHKD. BY ' evi d /19/01 SCALE 1 ,. 0 ' SCHROETEROLAND , SURVEYING PROFESSIONAL LAND SURVEYORS P.D. Box 813, Seahurst, 'dash.ngton 98062 (206) 242 -6621 FAX (206)243 -9679 JOB NO. 353/1 . PROJECT NO. 99066 SHEET 2 OF 2 . 6- e Z e ' .. si ....;6..:,..5 2 4 65.4 I.5 23 il • al ."5 i . o s : g 4S 9 1 4 ••:. '..." 11 , • • .' : g 4 ..-, ..0 00 5 .1.. ‘f; S ' ' ( G 0 0IS 1 . . . .,N4c • 616 .S ''' 1 . , 003. QZ e a N S +� 8 ..' 0225 . r ■5 " ) t: - o. . No. :02 21 0247 . P1. 0;10'1 01.5.• �V f1• 1: A ' .---- ,,,,p 2 . 2,411. '.. . ‘,/ 0 ,.., . 11'111 / s 1 ‘ 1*It ' 1.2 i _ 010.5 .44) 1•.o ' 122.0 F14? A la 3721.S ,22 J., s.,., ,,,,, • si.",o'' ; 1.1 ..... t e. 0, s, a'. ° e w - e ° :w ,R' __ a fe • a 1 , • • .' : g - 004 I la 2 0 ?:: 401 Fill . 0 • .,. . OP. . r ■5 " ) t: - • , , ih ,, . lot I ..t.' ; ttlot 2 6i • , 1 i :Ii I " ▪ i _.A.__ l P o 507.52•ILC. itO/Ni PCL 0,4.,s o tea ' 3 • ''Srl' .. ii r, pct. s ,, ' 4 so 6, 9. 13630 4 i .11, 2 e, pct. A 0 . 077.0(:.2120 210071 • ' 025 40 ,,, •2.42 TUN. 5 L92-00 I ,,,01 ILOT I ?. 3 , )\ 0' ..1 - ''' --. _. • : 1 .4 46 o ,„ 0t.62. 9-9304210451 A •‘1..OT ..,._, 1, t,. '=`"- 1: ; 41 • I / to - • s. ,1, ,,,o 1 ll °' 0, 0' ■ IS 00 ..1 , 0 ti 220 a . S O - "' '. 1 I i zrs0maze {e019US P1,= • • '; n.„, 15 i t . 1 ...m. 'P. 4 ...... I; - _Ltd -2.. 3 '1 •i? 11 ''' 5 'j 5__.24.‘ 3/ e. 0, s, a'. ° e w - e ° :w ,R' __ a fe • a 1 0 .0 .0 Cos.. - 004 I la 2 0 ?:: 401 Fill 6 03 ..NA 07 0575 • 0 - .0 P ' IC . - F :7 •1 VP. " 1 v e so •el.4 21 .5 ,...; 1 5,7 r :. - • i 005 0090 3 al A.'' 13.:■; �0 045 1; tl• 022 22 ' . Zi -49 .11fe° 129 43 201 1 e •NPa 1 . _ .041, ____ 242! F470 I I 1 % •1 .% . 4 66.1. 'F H 1 405 4 . , A - • • 11; IS #4 . . ,a.,,, .s.17 ,4;' 2; '• 0.20 22 _ ie4j'k' 1%06 , . r .9 - - .-- 26 02 S 0 I 7 oSIVI aSS7 ' �. I ra r _ _ . ..,. t , a . ,L•,. <a 5 •••• -.. A t 7 ; P C '" o :if....:" 4 1 cgeu .7 02 ,41 r. . : 2 f ". • _1 LI t'tt .0 ., _ _ _ • lt T I .. , - , ot3 I ca.( ro le. „ a, i, , o 4 Vl, i soe „ - k'b'48 ..c, ' - -- . t 2 33:: 441 • 2 •',;. '-' I ' I , ,,1° , ..____, : 1 ,, 1 ' ,-, . 1 • I I 1 a .„0"-,; ., C . i ,,,,, p. • 2 ',10 ''Z it ;. 06C01000S6 ISOO66l 1 , N •' 62 „.-,, .:8 . 7 ''''. ..„ . 4 0 2•:' Par A. , 1 ... I 3 ....1 „P '''. ,:- - - - - - .„. ..9 I . , . . ) U : .1' 1 l't 4 '. . ,.° ____Le.......z_,_c_ eq .., " I 4" e ' ? ,,..%, '.4 �fi N ...._ 010 1 .;'' .....P . . i • . , i , 1.rd -''' • --,-- • a ''''; 4. ''.. , "'1 ' ! .,,.. `;',:; ' , .,1 , ' WY 1 4 ' I 1.:' '3 'f' '' ,.,...T....,.,,,, 9 • KING' COUNTY DliPT. OF ASSESSMENTS LOT Z ,0 -E- o \ p 0 / 40.4 .1 , . ..„ i 6.6 .,“ . 1 , I : „ TUSP. LOS • 10026/5671 8 1 .., I . • 11.eo.a s aok . 737 - i yo, ,. 1.• 1 .;fs.,'„ i f im- ,:e'.',...."tir.:,,: t .-- Li • II I 4 6 VI St 2-2,2200 20 rt s . ••., ..• el .,;. . ws.:y c 4.771. 02 I 1 . 1 ..... 6c1...6 . 1 . H • • ., I h .6 .. 6 I 1.--, - .,, 1 1._- .,,,,,:•,: , • ST ENTIRE MAP CITY OF TUKW I LA SEA. TILE 557 NI • .. 'P ' 1' I 1' 7/ I : ■■ 1 9,e s s I /......-r I I :- - _Ll' I I, .---.-.-27g. ' I •-•-, I i I •-. Z. -. , c- . 1 , -- ir -: 1 , 1 .,^3P' 2 (0.1\ • ! 1 , ,.... - 6P•1:6 6...- F, i L .,,.... „ .- .- ..' ' ,74 i - .. - 27 1"' .,.. le " '4 F, N „ li"' 3 1 "' i IS; ss 115 : : . s . i lt1. ' Si 4 i:. ,, ,,, • .. .., , 3,, „..• " I F, • et . r/701/ 488,-,1 1 130:11 22. 22 4'5 2.6q1 13200 I 3C 5 4 - 7 /00 9 !US go - 1 .7.22 S.E. i5-23-.4 I 7 1.9 W 112 2. 010 63.11 3 2. rmer .1 o t° `,1 T , 0 0 3' 12(11 20 2 62.2 1.16 • 41 It e Lori ,„ l■t"i • ' 441_ 22a • • • 4 It 6 .766w IRIS MAP IS TON THE PURPOSE 01. ASSISTING IN LOCATING YOUR PROPERTY AND IS NOT GUARANTEED TO SHOW ACCURATE MEASUREMENTS. 1: 11 4 1 1 111 1 113 1 111 1 111 I: 11 1 , 3 1, 1 11 111, ,, PRI•qp•;',Ii.I.1.1, , ,101V ,9 111 1 11111 q1 111111I1111151 1 . 11111311111111111%1311311111111111111111111311411114511141 .72.• NM. 286035 0608221456 L07.2,q: 1447H S. .NiJ 57 SEA. TILE 557 131/6.56 . 1407H Long, F .,,o 1314.10, 10 1 tor z 2170 s! ••+ FHTF 'F' Tri a iFl 1 /7 I ,41 1121. 21 1 ' ' ,;4X . 1110 Iv:20120r. 2 ‘.W • 5 . 40 156711 a t 63.6 ? in Lot 3 o r3 g". 1.2 LOT 1 - I k.°,‘) so - - • ' „i 3 ■ 4- 0 • r t - . " I , I .11721 • KG 1966 N.E. 22.= 23,- 4 SCALE I"- 100' L. G. 0. ST. tIr AP' I Pct. Pct 'CIA • 51. FF L • /So I 00.1200 . r.z11 , ; ' 110150 I la • J A 1,7.72.1 taunt 172 • prow • 104.0.01_ . • . '"7 " " A 1 ,N,M.t..I.S. --7-- P0,5c..; ;' . .. I ' .. ' ' ' •L „-:'..; . - -; - ... . • 41' 0 ,6° • I - .. • 444P itiOED /977 • RECEryeD 0 3 1998 oPrum,„,. EDEPf." 2 21 12 0 rn I In N z ¢ "x /G" ry IM nrol V I 8 0 0 14 o' 'DA D. .7SCT14N rtriO.el. '6 s'a4',.yi • .2D W .4, [! .DP /V..EWi7Y W / '4L /US k'ETU•eA/S So. 146th St. Dtf0D .PEA1D1/.E Aister /DNr A "F aR EAS.FMEN r Z PA`7 :E ,f DAD /N L O 1 i �Ne'N W! <'Ye"r7".07r eVNAV / T 7a 1477Y M'R'ED WA74;e SE,PV /fE L /NES 8 ZD/ A, e'. .°t'/r///7E 3 2 /misting garage ZG r --E- -- ,?79b 4 unt / r /,ES FASE/'7■NT RDA D WAV 'Z .r •4" S CAS4 ENT , �1 1.26.2 / a N 'V COT /CD C . /LL ; 24Q / //YC' /, SD C%' //`9PO,C' We STD/WP/ / ///Z a /Y fi 7E IS ExPfe .7 �. N P4s1I D/ /7E /S EXPEC' TED . 3'" et e74. .�. " .BALLAST 4 7E4 ' .57/E*6RADh /10W72/ .EX. 6,PA.1›L:" PRA 4'/A/ (EE P,PDF /LZ' /4' G "5'l /S /4 /D' J A .E TFIVE.t, • Z4 7 DRAIN/16E EASE/15/0 r s VeffeferelZ115. egg?' /AZ' /Z /Z -f "SST CTYP,) /O 9 3D' DKA /N/1 CE E)St/` /E // 8 7 /3 SIN /N. Roof Downspout Owifow gpleuh Block now Flns Mesh Screw Cate. huh TURNA,? 4/.0 SECT /pN PVC Pipe /7 2 /; / D' /Z "!D'' .37 Z is S "SELEC BALLAST e4 /7P4r rED SU86.P,d AE 11111lj111 111lll l l . jIl.I i l.Il. � lIl 1 1111111 Ill1lII II 11l1l1Ill1lll1 • Inch ;; I i 1 „ 2 3 4 • �.' ..? 5 6 W STCOT . Since38 ° 1, Residential Drainage System: 4" PVC Pipe © 0.5% Min. (Typical Lots 2, 3 and 4) 2. Residential Drainage System: Sediment Control Yard Drain (Typical Lots 2, 3 and 4) 3. Residential Drainage System: Catch Basin - Type 40 (For each driveway, Typical Lots 2, 3 and 4) 4. Residential Drainage System: 4" PVC Pipe ® 0.5% Min. (Typical Lots 2, 3 and 4) 5. Catch Basin - Type 1 Rim = 277.2 IE 4" = 273.70 IE 8" = 273.70 8. 95 LF 6" PVC Pipe (g1 1.04% 7. Catch Basin - Type 1 Rim = 275.0 IE 8" = 272.55 IE 6" = 272.72 8. 18 LF 8" PVC Pipe © 3.06% 9. Catch Basin - Type 2 (54" dia.) Rim = 275.3 IE 36" = 269.00 IE 8" = 272.00 IE 4" = 272.00 10. 48 LF 48" Steel CMP (16 ga.) w/T -1 or 2) Detention Storage Pipe Ca 0.0% IE Bottom = 268.50 0 ^ 11. Catch Basin - Type 1 Rim = 275.8 IE8 "= 273.13 12. 25 LF 8" PVC Pipe @ 6.36% 13. Catch Basin - Type 2 (54" dia.) (w/12" FROP per attached detail) Rim = 275.0 IE 8" = 271.54 IE 36" = 269.00 IE 12" = 288.90 • 14. 106 LF 12" N••12 CI 0.50% 15. Catch Basin - Type 2 (48" dia.) Rim = 274.8 IE 12" = 268.36 16. 140 LF 12" Conc. (CL. III) @ 3.31% 17. Catch Basin - Type 1 1 . Rim = 265.8 oo IE 12" = 263.72 44 18. 10 Foot Wide Gravel Access Road for detention facility. to 0% Surface with 6 inches minimum 1" minus crushed rock. V3 3 E N F G� � 00 10 4.1 00 cti y 1:1 N • h t.' ,w ptPl s: #A. 4 3 RECEIVED 107, L 1/4 2 • TY �7 ' TV OF TUKWILA N . c� ivz 92002 1/ ¢ "T QGwTCn 278 . Z74 . • Z7i - hG9'ir a#GG NN ts ( Kv wk Wit 3 a tsa -D.4 % -AA - a, 2 K •1.0.757 1216.4 D PR. .D H /" = srd' ✓ /n : ¢� i1 , Z14a • WEST F.P. Z78. FAST F. G. FX. 6"A DE Z74. - Z 7� M U O U u fA RECEIVED I T Y S W TUKWILA Cr, 9 2002 U IMrrot'_ft,...11 0 z tri A jel `R era IIIIIIII IIIIII II1 IIIIII1IIIIII '4. II I .. LIIIIIIIIII�IIIIIIIIl IjIII�I Inch rie 2 ISTCOTT ® .` remov= , e watertight couplin • or flange NOTES: I�III�IIIjI l 6 plate welded to elbow with orifice as specified ELBOW RESTRICTOR DETAIL NTS SOMETRIC • NTS 2" min. FIGURE 5.3.4.A FLOW RESTRICTOR (TEE) 1' min. under pavement pipe supports see Note 8 D 5x0 elevation Invert and - el evation per plans 1' section of pipe attached by gesketed band to allow removal restrlctor plate with orifice diameter as specified (not needed If- iSE fl 7A SEL4W ) elbow restrictor see detail Retention /Detention Facility Type of Facility: • Tank Diameter: Tank Length: Effective Storage Depth: Stage 0 Elevation: Storage Volume:. Riser Head: Riser Diameter: Number of orifices: Orifice # Height Diameter (ft) • (in) 1 0.00 2.28 Top Notch Weir: None Outflow Rating Curve: None SECTION A -A NTS 2' m ln. clearance to any portion of frop-T including elbows 1. Use a minimum -0.a 54" diameter type 2 catch basin. 2.Outlet Capacity: 100-Year developed peak flow. 3. Metal Parts: Corrosion resistant. Non - Galvanized parts perterred. Galvanized pipe parts to have asphalt treatment 1. 4. Frame and ladder or steps offset so: A. Cleanout gate is visible from top. B. Climb down space Is clear of riser and ceanout gate. C. Frame Is clear of curb. 5. If metal outlet pipe connects to cement concrete pipe: outlet pipe to have smooth PLAN:VIEW O.D. equal to concrete pipe I.D. less 1/4 ". NTS . 6, Provide at least one 3" X .090 gage support bracket anchored to concrete wall. (maximum 3' -0" vertical spacing) 7. Locate elbow restrictor(s) as necessary to provide minimum clearance as shown. 8. Locate additional ladder rungs In structures used as access to tanks or vaults to allow access when catch basin Is filled with water. Detemtion Tank . 4.00 ft 48 -5'?:- ft 3.50 ft 0.00 ft 687. .cu. ft 3.50 ft 12.00 inches 1 Full Head Discharge (CFS) 0.263 frame, grate & solid cover marked "DRAIN" with locking bolts see note 3 & KCRS dwgs 2.022, 2 -023 Pipe Diameter (in) vertical bar grate for secondary Inlet handholds, steps or ladder see KCRS dwg. 2 -006 shear gate with control rod for cleanout/drain (rod bent as required for vertical alignment with cover) see KCRS dwg. 2 -026 additional ladder rungs (in sets) to allow access to tanks or vaults when catch is filled with water 28 ‘,7 `O2. 3/ ,...1-00e-se.). • 0 7 vc ; lot 4 STANDARD PLAN NOTES , Standard plan notes must be Included on all plans. At the applicant's discretion, notes which In no way if General Note ) #3 t werre oml omitted; the remaining the notes should be numbered 1, 2, renumbered. 6, etc. For example, GENERAL NOTES 1. All construction shall be in accordance with the King County Code (KCC), King County Road Standards (KCRS), and the King County Council's conditions of preliminary subdivision approval. It shall be the Bole responsibility of the applicant and the processional civil engineer to correct any error, omission, or variation from the above requirement found In these plans. All corrections shall be at no additional cost or liability to King County. 2. The design elements within these plans have been reviewed according to the King County Department of Development and Environmental Services (DDES) Engineering Review checidiet. Some elements may have been overlooked or missed by the DOES plan reviewer. Any variance from adopted standards is not allowed unless specifically approved by King County prior to construction. 3. Approval of this road, grading, and drainage plan does not constitute an approval of any other construction (e.g., domestic water conveyance, sewer conveyance, gas, electrical, etc.). 4. Before any construction or development activity, a preconstruction meeting must be held between the ODES Land Use Inspection Section, the Applicant, and the Applicant's Construction Representative. 6. A copy of these approved plans must be on the job site whenever construction is In progress. 6. Construction noise shall be limited In accordance with King County Code (Section 12.88); normally, this is • 7 a.m, to 10 p.m. on weekdays and 9 am. to 10 p.m. on weekends. 7. It shall be the Applicant's /Contractors responsibility to obtain all construction easements necessary the right-of-way. within h before initiating offsite work 8. Franchised utilities or other installations that are not shown on theme approved plans shall not be constructed unless an approved set of plans that meets all requlrerments of KCRS Chapter 8 Is submitted to the DDES Land Use Inspection Section three days prilor to construction. 9. Datum shall be NAVD 1988 unless otherwise approved by DDES. 10. Groundwater system construction shall be within a right -of -way or appropriate drainage easement, but not underneath the roadway section. All groundwater systems must be constructed In accordance with Section B1 3.02 of the APWA Standard Specifications. 11. All utility trenches shell be backfilled and compacted to 95 percent density. • 12. All roadway subgrade shall be backfilied and compacted to 95 percent density (WSDOT 2 -06.3). 13. Open cutting of existing roadways Is not allowed unless specifically approved by DOES and noted on these approved plans. Any open cut shall be restored In accordance with KCRS 8.03(8)3. 14. The Contractor shall be responsible lot providing adequate safeguards, safety devices, protective equipment, flaggers, and any other needed actions to protect the life, health, and safety of the public, and to protect property In connection with the performance of work covered by the contractor. Any work within the traveled right -of -way that may Interrupt normal traffic flow shall require at least one dagger for each lane of traffic affected. Section 1-07.23, 'Traffic Control, of the WSDOT Standard Specifications shall apply In its entirety. DRAINAGE NOTES 1. Proof of liability Insurance shall be submitted to ODES prior to the preconstruction meeting (KCC. 9.04.100.D). 2. All pipe and appurtenances shall be laid on a properly prepared foundation In accordance with WSDOT 7. 02.3(1). This shall include leveling and compacting the trench bottom, the top of the foundation . • material, and any required pipe bedding to a uniform grade so tnat the entire pipe is supported by a uniformly dense unyielding base. - • • 3. Steel pipe shall be galvanized and have asphalt treatment #1 or better inside and outside (KCRS 7.03). 4. All drainage structures, such as catch basins and manholes, not located within a traveled roadway or sidewalk shall have solid locking lids. All drainage structures associated with a permanent retention/detentlon facility shall have solid locking Tide (KCRS 7.05). 5. Ail catch basin grates shall conform to KCRS drawing numbers 2.0113, 2 -018, 2 -019, or 2 -020, and shall include the stamping 'OUTFALL TO STREAM, DUMP NO POLLUTANTS" and 'Property of King County' (KCRS 7.05). 8. All driveway culverts located within King County right -of -way shall be of sufficient length to provide s minimum 3:1 slope from the edge of the driveway to the bottom of the ditch. Culverts shall have beveled end sections to match the side slope (KCRS 7.03(L), Drawing No. 2 -001). 7. Rock for erosion protection of roadway ditches, where required, mast be of sound quarry rock, placed to a depth of 1 foot, and must meet the following specifications: 4 "- 89/40.70% passing; 2'- 4' rock/30-40% passing; and 2" minus rock/10 -20% passing. Installation shall be In accordance with KCRS 7.02(8), Drawing No. 2-024. • 8. Drainage outlets (stub -outs) shall be provided for each Individual lot, except for those lots approved for infiltration by King County. Stub -outs shall conform to the following: a) Each outlet shall be suitably located at the lowest elevation on the lot, so as to service all future roof downspouts and footing drains, driveways, yard drains, and any other surface or subsurface drains necessary to render the lots suitable for their intended ruse. Each outlet shall have free - flowing, positive drainage to an approved stormwater conveyance system or to an approved outfall location. b) Outlets on each lot shall be located with a five - foot -high, 2` x 4' stake marked *storm" or 'drain'. The stub -out shall extend above surface level, be viable, and be secured to the stake. • c) Pipe material shall conform to underdreln specifications described in KCRS 7.04. If non - metallic, the pipe shall contain wire or other acceptable detection: d) Drainage easements are required for drainage systems designed to convey flows through individual lot. e) The AppticantContractor Is responsible for coordinating the locations of all stub-out conveyance lines with respect to utilities (e.g., power, gas, telephone, television), f) All individual stub -outs shall be privately owned and maintained by the lot homeowner, EROSION AND SEDIMENT CONTROL NOTES 1. Approval of this erosion and sediment control (ESC) plan does not constitute an approval of permanent road or drainage design (e.g., size and location of roads, pipes, restrictors, channels, retention facilities, utilities, etc.). 2, The implementation of these ESC plans and the construction, maintenance, replacement, and upgrading of these ESC facilities Is the responsibility of the applicant/ESC supervisor until all construction is approved. 3. The boundaries of the clearing limit shown on this plan shall be clearly flagged by a continuous length of survey tape (or fencing, if required) prior to construction. During the construction period, no disturbance beyond the clearing limits shall be permitted. The Searing limits shall be maintained by the applicant/ESC supervisor for the duration of construction. 4. - The ESC facilities shown on this plan must be constructed prior to or In conjunction with all clearing and grading so as to ensure that the transport of sediment to surface waters, drainage systems, and adjacent properties is minimized. 5. The ESC facilities shown on this plan are the minimum requirements for anticipated site conditions. During the construction period, these ESC facilities shall be upgraded u neided for unexpected storm events and modified to account for changing site conditions (e.g., additional sump pumps, relocation of ditches and silt fences, etc.). 8. The ESC facilities shall be Inspected daily by the applicant/ESC supervisor and maintained to ensure continued proper functioning. Written records shall be kept of weekly revIews of the ESC facilities during the wet season (Oct. 1 to April 30) and of monthly reviews during the dry season (May 1 to Sept. 30), 7. Any areas of exposed soils, including roadway embankments, that will not be disturbed for two days during the wet season or seven days during the dry season shall be Immediately stabilized with the approved ESC methods (e.g., seeding, mulching, plastic coverieg, etc.), 8. Any area needing ESC measures not requiring Immediate attention shall be addressed within fifteen (15) days, 9, The ESC facilities on Inactive sites shall be inspected and melntelned a minimum of once 'a month or within forty -eight (48) hours following a storm event. 10. At no time shall more than one (1) foot of sediment be allowed to accumulate within a catch basin. All catch basins and conveyance lines shall be cleaned prior to paving. The 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 wash pads, may be required to ensure that all paved areas are kept clean for the duration of the project 12. Any permanent flow control facility used as a temporary settling basin shall be modified with the necessary erosion control measures and shall provide adequate storage capacity. If the facility is to function ultimately as an infiltration system, the temporary feclity must be graded so that the bottom and sides are at least three feet above the final grade of the permanent facility, 13. Where straw mulch for temporary erosion control is required, it shall be applied at a minimum thickness of 2 to 3 Inches. 14. Prior to the beginning of the wet season (Oct. 1), all disturbed nrees shall be reviewed to Identify which ones can be seeded In preparation for the winter rains. Disturbed areas shall be seeded within one week of the beginning of the wet season. A sketch map of those areas to be seeded and those areas to remain uncovered shall be submitted to the DOES Inspector. The DDES Inspector can require seeding of additional areas In order to protect surface waters, adjacent properties, or drainage facilities. RECOMMENDED CONSTRUCTION SEQUENCE 1. Pre- construction meeting. 2. Flag or fence clearing limits. 3. Post sign with name and phone number of ESC supervisor. 4. Install catch basin protection If required. 5. Grade and install construction entrance(s). 8. Install perimeter protection (silt fence, brush barrier, etc.). 7. Construct sediment ponds and traps, 8. Grade and stabilize construction roads. 9: Construct surface water controls (interceptor dikes, pipe slope,', stns, etc.) simultaneously with clearing and grading for project development. 10. Maintain erosion control measures In accordance with King County standards and manufacture?. recommendations. 11. Relocate surface water controls and erosion control measures o- Install new measures so that as site conditions change the erosion and sediment control is always In accordance with the King County Erosion and Sediment Control Standards. 12. Cover all areas that will be unworked for more than seven days during the dry season or two days during the wet season with straw, wood fiber mulch, compost, plastic sheeting or equivalent. 13. Stabilize all areas that reach final grade within seven days. 14. Seed or sod any areas to remain unworked for more than 30 days. 16. Upon completion of the project, all disturbed areas must be stab9lzed and bmps removed If appropriate. CITY OF TUKWILA Public Works Department 206 -433 -0179 DEVELOPMENT BULLETIN 1 STANDARD CONSTRUCTION PLAN NOTES Locations shown for existing utilities are approximate. Prior to starting construction, contact ONE -CALL (1- 800 - 424 -5555) for utility locations. CONTACTS 1. Project Manager 2. Design Engineer 3, Owner: 4, Other: GENERAL 1. Notify the Utilities Inspector at 206- 433 -0179 at least 48 hours before starting project site work, 2. Request a Public Works utility inspection at least 24 hours in advance by calling 206 -433 -0179, 3, The Contractor assumes sole responsibility for worker safety, and damage to structures and Improvements resulting from construction operations. 4. The Contractor shall have the permits) and conditions, the approved plans,. and a current copy of City of Tukwila Infrastructure Design and Constructio Standards available at the job site. 5. All work shall conform to these approved drawings. Any changes from the approved plans require pre - approval from the owner, the engineer, and the City of Tukwila. 6. All methods and materials shall meet City of Tukwila Infrastructure Design and Construction Standards, unless otherwise approved by the Public Works Director. 7, Contractor shall maintain a current set of record drawings on -site, 8. Contractor shall provide record drawings prior to project final approval. .9, Contractor shall provide traffic control and street maintenance plan for Public Works approval before Implementation. 10. All surveying for public facilities shall be done under the direction of a Washington licensed land surveyor. Vertical datum shall be NAVD 1988. Horizontal datum shall be NAD 83/91, For projects within a flood control zone, the Permittee shall provide conversion calculations to NGVD 1929, 11. The Contractor shall replace, or relocate all signs damaged or removed due to construction. GRADING AND EROSION CONTROL NOTES 1.. The erosion prevention and sediment control (ESC) measures on the approved plans are minimum requirements, 2 Before beginning any construction activities, establish the clearing limits and install construction entrance, 3 Before any ground disturbance occurs, all downstream erosion prevention and sediment control measures (ESC) must be constructed and in operation. Install and maintain all ESC measures according to the ESC plan. 4. ESC measures, Including all perimeter controls, shall remain In place until final site construction Is completed and permanent stabilization Is established. 5. From May 1 through September 30, provide temporary and permanent cover measures to protect disturbed areas that will remain unworked for seven days or more. 6. From October 1 through April 30, provide temporary and permanent cover measures to protect disturbed areas that will) remain unworked for two days or more. In addition to cover measures, the Contractor shall: • Protect stockpiles and steep cut and filll'slopes if unworked for more than 12 hours. • Stockpile, on site, enough cover materials to cover all disturbed areas. 7, By October 8, seed all areas that will remain unworked during the wet season (October 1 through April 30), Mulch all seeded areas. UTILITY NOTES 1. All trench excavation operations shall meet or exceed all applicable shoring laws for trenches over 4 -feet deep. All trench safety systems shall meet WISHA requirements. 2. Power, cable, fiber optics, and telephone lines shall be in a trench with a 5' minimum horizontal separation from other underground utilities, 3. Adjust all manholes, catch basins, and valves In public rights -of -way or easements after asphalt paving. jSTORM DRAINAGE NOTES 1. All methods and materials shall meet City of Tukwila Infrastructure Design and Construction Standards, and the current King County Surface Water Design Manual, unless otherwise approved. 2. Mark all storm drain inlets with "Dump No Waste" and either "Drains to Streams ", "Drains to Wetland?, or "Drains to Groundwater ", as applicable. 3. Driveway culverts shall be of sufficient length to provide a minimum 3:1 slope from the edge of the driveway to the bottom of the ditch. Culverts shall have beveled end sections that match the side slope. 4. For single family construction provide one of the following notes: • . Single family residences constructed on lots created by subdivision must provide downspout Infiltration according to the approved subdivision. OR, • Single family residences constructed on lots created by subdivision must provide downspout dispersion systems according to the approved subdivision. OR, • Single family residences constructed on lots created by subdivision must provide perforated stub -out connections according to the approved subdivision. 5. Coordinate final stub -out locations with the Utilities Inspector. Provide a wire or other detection device and mark stub -out location with a 5 -foot 2 "x4" stake, burled 4 -feet and labeled "storm' or "drain ". WATER SUPPLY NOTES 1. The Contractor shall install corporate stops, water service lines, and meters. The City of Tukwila will Install the meters. 2. Pressure test all water mains and appurtenances, 3. Flush and disinfect new, cleaned, or repaired water mains, 4. Install restrained joints at all bends, tees, and other direction changes. 5. All water mains shall have a blow -off assembly at low point and an air vacuum relief valve at high point of main. 6. Install fire hydrant assembly so it stands plumb and so that the lowest outlet is at 18" above the finished grade. The assembly shall have a clear zone around hydrant of at least 36" and the pumper port shall face street or fire access, 7. The Installer of a fire line backflow prevention device Installed outside the building and underground, shall have a Level III certificate of competency or a Level U contractor's certificate of competency. If the Installer is different than the backflow prevention designer, then the installer must stamp, sign, and date the plans, in addition to the designer's stamp, signature, and date. ;SANITARY SEWER NOTES 1, All methods and materials shall meet CIty of Tukwila Infrastructure Design and Construction Standards, unless otherwise approved. 2. The Contractor shall mark the end of the side sewer, Inside the property line, • with a 4 foot pressure treated 2 x 4, burled In the ground 4 feet. The burled end shall have'a 2 x 4 cleat nailed to It to prevent withdrawal of the stake. The exposed 1 -foot shall be painted traffic yellow and the depth to the side sewer or tee shall be Indicated In black paint. D(PIRES: 4/24/ Q ze, 7I'G '0 2. 3y 7 7 OGT 'vZ • 3/4 C 0 .fMI I '.t I mi Q a a VP ti �o N CI) V H aE¢ENED It' TUKWILA T 3" 9 2002 0 II ' III III III III • ICI J II 'aii III I III III III III III III ICI III III III III III IIi 1I ' , ' 2I .11I I I I '3I' ' .' - .i I ( .. 41,-i , . ,; ' 5I ' 6 I Inch 1.16 r , AU STCOTTw ?; Inlet pipe 1 1 { 1 .. i control structure control structure (FROP -T shown) min. 54" die. Type 2 CB see Section 5.3.4 NOTE: All metal parts corrosion resistant. Steel parts galvanized and asphalt coated (Treatment 1 or better). Zed — Z7b -- Z 7Z — 262- -- PIGEIRE4anlyis TYPICAL DETENTION TANK 36" min. diameter (typ) PLAN VIEW NTS • detention tank size as required , SECTION A -A NTS 9344" G /F P4ldM / r s v e y . ./,3'4 8 "AWC tam DG N Q ( 0 Ith .571,f/I1 SYSTE./7 ./ /1/= .�. V /" 36" A How -• —y inlet pipe (flow through) type 2 CB required for flow through system only 2" min. diameter air vent pipe welded to tank (required it no access riser on tank) /f DD /D8 LF / /2 a e.sGs o (ifs 31 DD iIliiI I III illifIliiiiiiiiiii,ll.j.0 l.1l,ll Inch bits. - .� 2 , ■ VESTCOTT , .. slate lap'. 511 . Vil , Ell , CIL i Ili . Olt m I i iy I2 F . Venter FMei 64" owe- '0' IMO •'f •fer separate oat In Maas OM Promo spa Joint $,.$11 $ iii 1{I iii .. .... 1 iii . ill l I 5� III III I I iII Iji I)l Ijl 1 ' . .. . .a 6 1 1 IL i S i 1 I Ie_I IC I. Iz..l. It ..1` 70m. 74" or 14" dlo-it 4r'ar I4" fe$••ai• cost In Moe K separate precast boa Minforok4 stew lfor separate base O44y1 0.27 SO 111/FT In /or) direction for 49 " dA OM 10 WIT N scan direction for SY't4A Design A•mactlana • Sal Morino vow muds 3700 a/FT i From and Crate or Mg and COVS, .�� Meer or Adjwt.wnt Section �— Nonni . '— flat slab cover Stem and Lodd.r MMferokle stein Mr ernes/ .el. with Meyer Meer) ye OJ. 30 .46 N •ash Mec•Nn N► TF , 0,1 $0 WFT *lo IK 14'04 . V . , +- -Pre001t bole with Mqd Maw ��. OraellalcklM for ig. . ....... b ases MMMMostec d ptly rer bed n er.oast bast. My. ).2447 (Mood lion-rolrlynced Concrete rattly.) bv I p*7E I HMCO I IT 1 Bras and toe Ise. Stadrd Plan for details) /" Aim Section t7" SI.K Section NOTES Catch actin to be constructed kraccardanc. with WM C 470 IAASHTO M t9916 ASTM C 090 uNeu otherwise shorn on plain or noted In ins Standard Specifications. Hanimalde In riser or adjustment .option shall have 3" MnIo olearono., Steps In catch basin shot hove S" minimum dear- once, No steps are r.wlrld when 'B' le 4' or lees. Al reinforced oast In place concrete she be Close A. Al precast concrete shall obtain 4000 PS11 79 days, Precast bases and be furnished With cutouts on knock- out.. knockouts MI hove a wd of Y minimum. Fnookout or output MN size Is .audio pipe outer diameter Ms cater basin Ill thickness Mo4imum hole else N 3S" ter 41 " catch bosky 42" for 154' catch basin Minimum distance between holes Is 6". from, and prata or ring and cover she be In p000rdona. rlth Stamford Sp.d110711ona 1.M meet the strength r.aulrm nts of Federal Specification Pk•F•12e. Mating wr• fame Md be finished to assne non- roohing fit. Al bass reinforcing sties shall have a minimum yield Strength of 10,000 PSI nod be plao.d In the upper half of the bow with 7' minimum CI.KOnow TM bottom of the precast Catch Basin may be rounded. • Far dotal% shoeing frame and grate. ring and cover es. Standard Plan Metd Pram. and Orate for Catch Ball and Mock', For details shooters adder. step., handrail and top slab,ses Standard Plan 'Ml.oetoi.ous Catch Basin O.tatte. frame and grate may be Installed with tangs awn or cost into riser. CATCH BASIN TYPE 2 4B' 54' STANDARD PLAN 6-IM No Catch .aka to 4. mistrusted In oordanew elth ASTM C 476 OAASHTO I 11116 MTh C 990 alma Morels. Moan M perm or sled it tlM Slander. SpOdiia.tiar, Al a eamptpW *abet. to reb., welded ski hark boring a M.iman wit it 0,19 saws MM. Pep tool may 4. wad. MwM afro Mena chi coney to MIL A 497 (441450 M 310. Th. fairk sine not be plead In Um Imodool.. • The bottom al IM mewl base salon may be roads.. Proud bases Mal be IwdMMd with Moots K knockout.. Kmckads chi ham . ad Maims. of :• madmn. Krockeu* my M ode M 4 e1M. with memo Tamar of 20 ".14neckau %.. ts e91w retied K `D" steeps. Wpm to b. Faded N factory anynkd knockouts. Knockout or catmint* Me is manila pipe WAN' aamler M- 1.1• bad. wes 1%akm es. TM madman Meth from the 1H. sods to the pipe Invert Is 9 The taper on lM dine .f the FP!!.oast Ills 1ee400 .md OM molten Mai mt anon Catch bale ken end yete ones be N saserd.Me eta Stadrd SpadnaHSM and moat W .Incgth reakmen* el F.drel Seadlk.tim I1114-475O. Mcthg surfaces chi be MOM to awe nos eckb. fit. From Ond vets may be WHIM alt. Sang down K coal Into mica. A'^ EXPIRES: 4!241 Q 3 o ," to z__ CATCH BASIN TYPE I ••• mmammatim arm Dar.U.. L Mes STANnMO PUN B-I ¢/4 U II M GQ _ aa ▪ � M ✓ 0 . as o awl • • 00 v � al vi o n dd es j N E Fi 4 RA .t: Z E-' E~ 0o to 00 a 8N rn w RECEIVED CITY OF TUKWILA OCT - 9 2002 • PERMIT CENTER 0. U AOS (ASTM D4781) 30.100 sieve size (0,80.0.15 mm) for slit film 50.100 sieve slur (0.30 -0.15 mm) for other fabrics Water Permittivity (ASTM D4491) 0.02 eso't minimum Grab Tensile Strength (ASTM D4832) 180 lbs. min, for extra strength fabric) 100 lbs. min. for standard strength fabric , Grab Tensile Elongatlon(ASTM D4632) 30% max. Ultraviolet resistance (ASTM 04355) 70% min. Grab Tensile Strength (ASTM D4761) 200 psi min, Grab Tensile Elongation (ASTM D4632) 30% max, Mullen Burst Strength (ASTM D3788•80a) 400 pal min. Aos (ASTM D4751) 20-45 (U.S. standard sieve size) r. 2 M 0 • proposed nl house location existing Houle #4043 So, 146th St, REMO!/E Aloo.e7 /ONS .4.f• oPEaL //X b // T/4 ,S c.OSFME'N M 17 T 2 EASE/VENT 8 /�A9Af' 6.PA14 SNOl /81"/Y.474* D AVAA AV d 1 f 4 ? ,yeti IN/ •eeleeT.0 /l e'aND //T TO /A/NY BWZIED WATEAP SER4llG'• L /IVES existing garage existing house r 0 z N /T 2. The geotextile used must meet the standards listed below. A copy of Ithe manufactures's fabric specifications must be available on site. 98,09' J 1.26.23"r A a N 'V SILT FENCE Purpose Use of a silt fence reduces the transport of coarse sediment from a construction site by providing a temporary physictd barrier to sediment and reducing the runoff velocities of overland flow. Conditions of Use . 1. Silt fence may be used downelope of all disturbed areas. 2. Silt fence is not intended to treat concentrated flows, nor is it intended to treat substantial amounts of overland flow. Any concentrated flows must be conveyed through tine drainage system to a sediment trap or pond. The only circumstance in which overland flow can be treated solely by a silt fence, rather than by a sediment trap or pond, is when the area draining to the fence is small (see "Criteria for Use as Primary Treatment" on page 1)48). • Design and Installation Specifications 1. See Figure D.4.S for details. 3. Standard strength fabric requires wire backing to increase the strength of the fence. Wire backing or closer port spacing may be required for extra strength fabric if field performance warrants a stronger fence. 4. Where the fence is installed, the slope shall be no steeper than 2H:1 V. A Ato ry sox 2t"1NA7.4TP f / cocreAOeNT 7 IIa C" 6 s O " SSS cry, ) G -ST G °ST AT' USC I smut. VENCE EP O EQUIVALENT TO ATTACH IAMMC TO Pails. �.. ■� pw h �ill�. e - flow All Flew Mesh Bemen Catch LtW (lard Drain) FIGURE DA.E SILT FENCE -- rr LJ �' I WIRE Ma CIONO INCREASED 51 NOTM IM TN, 0 ALONG � f W SioLL CNC 1R POSSIBLE n •N /G # •SAN /7A,PY JlrlVE.t EiVlE/sEWT 212' SY 14 OA. le. C OR EQUIVALENT M IANOMO sTIMNOtN Powac u0t0 MDT FORM IANWUM 4 lu SACNFRA TCeNr,N WITH NATrc SOIL 0A S /4 MASKS ORAVCL S•.4• WOOD POSTS, IEEE FCNce POSTS, RSV" oR EOIVALENT I difIIL LPL( Maintenance Standards 1. Any damage shall be repaired immediately. 2. If concentrated flows are evident uphill of the fence, they must be intercepted and conveyed to a sediment trap or pond. 3. It is important to check the uphill side of the fence for signs of tie fence clogging and acting as a barrier to flow and there causing chumelludon of flows parallel to the fence. If this occurs, replace the fence or remove the trapped sediment. 4. Sediment must beremoved when the sediment is 6 inches high:, 5. ' If the filter fabric (geotexdle) has deteriorated due to ultraviolet breakdown; it shall be replaced. II ifI�III�IIl I I�III�I IljIII1.,Illllji I,jlll�l illilj1 lIIIiII III ;il iii iji Ili ijt iii Ijl Inch I.I6 1 I , 2I 3I' I 4I i LSTCOTT� STABILIZED CONSTRUCTION ENTRANCE Purpose • Construction entrances are stabilized to reduce the amount of sediment transported onto paved roads by motor vehicles or runoff by constructing a stabilized pad of quarry *palls at entrances to construction sites. Conditions of Use Construction entrances shall be stabilized wherever traffic will be leaving aconsfitction site and traveling on paved roads or other paved areas within 1,000 feet of the site. Design and Installation Specifications 1. See FigureD.4.0 for details. 2. A separation geese ile shall be placed under the spells to prevent fine sediment from pumping up into the rock pad. The geotextile shall meet the following standards: 3. Hog fuel may be substituted for or combined with quarry spells in areas that will not be used for .permassentrosk The eUer et of hog fuel is highly variable, but it has been used successfully on many sites. Irgeamsilylequhig6 ieeEeusailseeneeest an quarry spells. The inspector may at any time require theuie of giwry spill* gdreises Slut, u notrevaadog; seClnrii4l t hang tacked onto pavement or if the hog fuel is bbtdg eutled onto paWmeet. Hog fuel is prohlblteiliii pemanent roadbeds because organics in the subgade soils cause difficulties with compaction. 4. Fencing (see Section D.4.1) shall be installed as necessary to restrict traffic to the construction entrance. 5. Whenever possible, the entrance shall be constructed on a firm, compacted aubgade. This can substantially increase the effectiveness of the pad and reduce she need for *maintenance. Maintenance Standards 1. Quarry spells (or hog fuel) shall be added if the pad is no longer in accordance with the specifications. 2. If the entrance is not preventing sediment from being tracked onto pavement, then alternative measures to keep the streets free of sediment shall be used. This may include street sweeping, an increase in the dimensions of the entrance, or the installation of a wheel wash. If washing is used, it shall be done on an area covered with crushed rock, and wash•water shall drain to a sediment trap or pond. 3. Any sediment that is tracked onto pavement shall be removed immediately by sweeping. The sediment collected by sweeping shall be removed or stabilized on site. The pavement shall not be cleaned by washing down the street, except when sweeping is ineffective and there is athreat to public safety. If it is necessary to wash the streets, the construction of a small sump shall be considered. The sediment would then be washed into the sump. 4. Any quarry spells that are loosened from the pad and end up on the roadway shall be removed immediately. 5. If vehicles are entering or exiting the site at points other than the construction entrance(s), fencing (see Section D.4.1) shall be installed to control traffic. FIGURE D.4.0 STABILIZED CONSTRUCTION ENTRANCE . �KtIMO 01. R • 25' MIN. • INSTALL DRIVEWAY CULVERT IF THERE IS A ROADSIDE DITCH PRESENT, AS PER KING COUNTY ROAD STANDARDS 4 " -e' QUARRY SPALL3 GEOTtXTILE [ 4/24/ 03 e 1 Gym i t z-- AS PER RING COUNTY ROAD STANDARDS. DRIVEWAYS SHALL BE PAVED 10 THE EDOE OF R -o -w PRIOR TO INSTALLATION OF THE CONSTRUCTION ENTRANCE TO AVOID DAMAGINO OF THE ROADWAY IT IS RECOMMENDED TIIAT THE ENTRANCE BE CROWNED SO THAT RUNOFF SWAINS OFF THE PAD 12 MIN. THICKNESS 1 \ `�, PROVIDE FULL WIDTH OF INGRESS /EGRESS AREA Yrc /NJTY MAP IK\ /„ _ 1/¢ M. 1' U TD H ' 00 4 ea 00 ■O 00 t7� 3 of RECEIVED CITY OF TUKWILA O E T- 92002 P, RMITCENTER U n, z ti STANDARD ESC PLAN NOTES The standard ESC plan notes must be included on all ESC plans. At the applicant's discretion, notes that in no way apply to the project may be omitted; however, the remaining notes must not be renumbered. For example, if ESC Note 93 were omitted, the remaining notes should be numbered 1, 2, 4, 5, 6, etc. I. Approval of this erosion and sedimentation control (ESC) plan does not constitute an approval of permanent road or drainage design (e.g., size and location of roads, pipes, restrictora, channels. retention facilities, utilities, etc.), 2. The implementation of these ESC plans and the construction, maintenance, replacement, and upgrading of these ESC facilities is the responsibility of the applicant/ESC supervisor until all construction is approved. 3. The boundaries of the clearing limits shown on this plan shall be clearly flagged by a continuous length of survey tape (or fencing, if required) prior to construction, During the construction period, no disturbance beyond the clearing limits shall be pemdtted. The clearing limits altall be maintained by the applicant/ESC supervisor for the duration of construction. 4. The ESC facilities shown on this plan must be constructed prior to or in conjunction with all clearing and grading so as to ensure that the transport of sediment to surface waters, drainage systems, and adjacent properties is minimized. 5. The ESC facilities shown on this plan are the minimum requirements for anticipated site conditions. During the construction period, these ESC facilities shall be upgraded as needed for unexpected storm events and modified to account for changing site conditions (e.g., additional sump pumpl, relocation of ditches and silt fences, etc.). 6. The ESC facilities shall be inspected daily by the applicant/ESC supervisor and maintained to ensure continued proper functioning, Written records shall be kept of weekly reviews of the ESC facilities during the wet season (Oct. 1 to April 30) and of monthly reviews during the dry anion (May 1 to Sept. 30). 7. Any areas of exposed soils, including roadway embankment, that will not be disturbed for two days during the wet season or seven days during the dry season shall be immediately stabilized with the approved ESC methods (e.g., seeding, mulching, plastic covering, etc.). 8. Any area needing ESC measures that do not require immediate attention shall be addressed within flfteen•(15) days. 9. The ESC facilities on inactive sites shall be Inspected and maintained a minimum of once a month or within forty eight (48) hours following a storm event. 10. At no time shall more than one (1) foot of sediment be allowed to accumulate within a catch basin. All catch basins and conveyance lines shall be cleaned prior to paving, The 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 wash pads, may be required to ensure that all paved areas are kept clean for the duration of the project. 12. Any permanent flow control facility used as a temporary settling basin shall be modified with.the necessary erosion control measures and shalt provide adequate storage capacity. If the facility is to function ultimately as an infiltration system, the temporary facility must be graded so that the bottom and sides are at least three feet above the final grade of the permanent facility. 13. Where straw mulch for temporary erosion control is required, it shall be applied at a minimum thickness of 2 to 3 inches. 14. Prior to the beginning of the wet season (Oct. 1), all disturbed areas shall be reviewed to identify which ones can be seeded in preparation for the winter rains. Disturbed areas shall be seeded within one week of the beginning of the wet season. A sketch map of those areas ao be seeded and those areas to remain uncovered shall be submitted to the DDES inspector. The DDES inspector can require seeding of additional areas in order to protect surface waters, adjacent properties, or drainage facilities. CONSTRUCTION SEQUENCE A detailed construction sequence is needed to ensure that erosion and sediment control measures are applied at the appropriate times. A recommended construction sequence is provided below: 1. Hold the pre - constriction meeting. 2, Flag or fence clearing limits. 3. Post a sign with the name and phone number of the ESC supervisor. 4. Install catch basin protection, if required. 5. Grade and install construction entrance(s), 6. Install perimeter protection (silt fence, brush barrier, etc.). 7. Construct sediment ponds and traps. 8. Grade and stabilize construction roads. 9. Construct surface water controls (interceptor dikes, pipe slope drains, etc.) simultaneously with clearing and grading for project development. 10. Maintain erosion control measures in accordance with King County standards and manufacturer's recommendations. 11. Relocate surface water controls or erosion control measures, or install netw measures so that as site conditions change, the erosion and sediment control is always in accordance with the King County Erosion and Sediment Control Standards. 12. Cover all areas that will be unworked for more than seven days during the dry season or two days during the wet season with straw, wood fiber mulch, compost, plastic sheeting, or equivalent. 13. Stabilize all areas within seven days of reaching final grade. • 14. Seed or sod any areas to remain unworked for more than 30 days. 15. Upon completion of the project, stabilize all disturbed areas and remove, BMPs if appropriate. • ' I � I �. lll ll ' I , I � � ! .) Iili l l l i+ l l . l t l J llJ )� )II J 11 • Inch I.'0 , 3 - WESTCOTT'® Shim ,a7.1•• ' It , 4lt , Ell ZIc . NL . OIC In In EX}riRE3: 4/24/ . 03 CITY OF OCT 2/ Z pswrr l U m � 'L4 9,002 a 3 4 tl9TFta .,, .. M V 00 ■D rd) Q, In 1 . en V. d l N 0 ■:S£WKR DISTR1C7' y. ▪ \ 2 0 c o 4F4 4:I 11111 1.1 I 1 [1:1 :1: 14 I I *I1 Inch 1 V(i-L'STCOTT - ' Since 187,2 •■• • II iiiiliiii 1 z 111'1'11 ri 11 1 riiithi 11 1 171 • • W ot c A - • E — eD E • • * ti* imi o 01 1 $1 , --i ...0 4 cb ci . 1 &■ NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT.