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HomeMy WebLinkAboutPermit D05-432 - EK RESIDENCE - WALLSEK RESIDENCE 16227 54 AV S D05 -432 re W W2, QQ=. U O. U . W= J 1. W 0, GC J` I-W O. Z F- W uj U N: .0 H: W • W 1--U O. ..Z. W 0 Z i 1LA, wqs city Tukwila S teven M. Mullet, Mayor Departntent of Conrununity Development Steve Lancaster Director i 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 `�..,. Phone: 206-431-3670 190E Fax: 206 - 431 -3665 Web site: cOmbvila.wa.its DEVELOPMENT PERMIT Parcel No.: 5379200203 Permit Number D05-432 Address: 16227 54 AV S TUKW Issue Date: 12/19/2005 Suite No: Permit Expires On: 06/17/2006 Tenant: Name: EK RESIDENCE Address: 16227 54 AV S, TUKWILA WA Owner: Name: OWEN SHAWNA R +DALE C Phone: Address: 16227 54TH AVE S, TUKWILA WA Contact Person: Name: JEFFREY EK Phone: 206 251 -4341 Address: 16350 53 PL S, TUKWILA WA Contractor: Name: OWNER AFFIDAVIT ON FILE Phone: Address: , Contractor License No: } Expiration Date: DESCRIPTION OF WORK: CONSTRUCTION OF CONCRETE BLOCK WALLS. WALL DRAINS WILL DRAIN TO YARD (DAYLIGHT). Value of Construction: $4,000.00 Fees Collected: $203.19 Type of Fire Protection: International Building Code Edition: 2003 Type of Construction: Occupancy per IBC: 0022 Public Works Activities: Channelization / Striping: N Curb Cut / Access / Sidewalk / CSS: N Fire Loop Hydrant: Flood Control Zone: Hauling: Land Altering: Landscape Irrigation: Moving Oversize Load: Sanitary Side Sewer: Sewer Main Extension: Storm Drainage: Street Use: Water Main Extension: Water Meter: N Number: 0 Size (Inches): 0 Start Time: End Time: Volumes: Cut 0 c.y. Fill 0 c.y. Start Time: End Time: Private: Public: N Profit: N Non - Profit: N Private: Public: doc: IBC - Permit D05 -432 Printed: 12 -19 -2005 11 1 1 1111 Igg" 1111111 HMO I4 Z '~ w ar 2 u� D . JU UO U CO W J � C/) .L- w L- tn = w Z �_O Z F_ LU U� O CO 0 F- LU w HP �z tii U =. O Z City G. Tukwila Department of Canmunity Development 6300 Southcenter Boulevard, Suite #100 Tukwila, Washington 98188 Phone: 206 - 431 -3670 Fax: 206 - 431 -3665 Web site: ci.tukwila.wa.its * *continued on next page ** Steven M. Mullet, Mayor Steve Lancaster, Director doc: IBC- Permit D05 -432 Printed: 12 -19 -2005 Z LU 6 D JU . U O U 0 ' CO) J � fn .U. W J: U- Q CO Z d �W Z �... . F- O Z H W ' 5' U U : O CO, O H, W W 2 H U ILL 0 . 111 H 'O F- Z City G. , Tukwila of 7 y Departiiient of Comntitisity Development -� 6300 Southcenter Boulevard, Suite #100 N= Tukwila, Washington 98188 f Phone: 206-431-3670 1908 Fax: 206 - 431 -3665 Web site: ci.tukwila.wa.us Permit Number: Issue Date: Permit Expires On: Steve: Al. Mullet, Mayor Steve Lancaster, Director D05 -432 12/19/2005 06/17/2006 Permit Center Authorized Signature: Date: _lam 4/1 I hereby certify that I have read and examined this permit and know the same to be true and correct. All provisions of law and ordinances governing this work will be complied with, whether specified herein or not. The granting of this permit does not presume to give authority to violate or cancel the provisions of any other state or local laws regulating construction or the performance of work. I am authorized to sign and obtain this development permit. � Signature: Date: Print Name: This permit shall become null and void if the work is not commenced within 180 days from the date of issuance, or if the work is suspended or abandoned for a period of 180 days from the last inspection. Z H W 0: W JU UO to 0 J = C0 U WW i L L rn D �W Z P zO W w 5: U� ON � F- WW 2 ~ H tL O w Z O Z doc: IBC- Permit D05 -432 Printed: 12 -19 -2005 � \VSL.t, �,� r•, , NA�...� City of 'Tukwila lace Department of Community Development / 6300 Southcenter BL, Suite 100 I Tukwila, WA 98188 / (206) 431 -3670 Parcel No.: 5379200203 Address: 16227 54 AV S TUKW Suite No: Tenant: EK RESIDENCE PERMIT CONDITIONS Permit Number: Status: Applied Date: Issue Date: DOS -432 ISSUED 12/02/2005 12/19/2005 1: ** *BUILDING DEPARTMENT CONDITIONS * ** 2: No changes shall be made to the approved plans unless approved by the design professional in responsible charge and the Building Official. 3: All permits, inspection records, and approved plans shall be at the job site and available to the inspectors prior to start of any construction. These documents shall be maintained and made available until final inspection approval is granted. 4: All construction shall be done in conformance with the approved plans and the requirements of the International Building Code or International Residential Code, International Mechanical Code, Washington State Energy Code. 5: There shall be no occupancy of a building until final inspection has been completed and approved by Tukwila building inspector. No exception. 6: Remove all demolition rubble and loose miscellaneous material from lot or parcel of ground, properly cap the sanitary sewer connections, and properly fill or otherwise protect all basements, cellars, septic tanks, wells, and other excavations. Final inspection approval will be determined by the building inspector based on satisfactory completion of this requirement. 7: VALIDITY OF PERMIT: The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of the building code or of any other ordinances of the City of Tukwila. Permits presuming to give authority to violate or cancel the provisions of the code or other ordinances of the City of Tukwila shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the Building Official from requiring the correction of errors in the construction documents and other data. * *continued on next page ** z Z UO y0 J = U- 0 w u- Q N D = d �w z z� w W U� O N 0 4— w LL 0 w z CO) O z dom Conditions D05 -432 Printed: 12 -19 -2005 City of Tukwila race t Department of Community Development / 6300 Southcenter BL, Suite 100 / Tukwila, WA 98188 / (206) 431 -3670 z ;�. z mo w. Q � J U' UO too J = Ww w O �a CO = CY. �w z t 0 z f- w LU D o. 0 o� w w; tl O z U= O z I hereby certify that I have read these conditions and will comply with them as outlined. All provisions of law and ordinances governing this work will be complied with, whether specified herein or not. The granting of this permit does not presume to give authority to violate or cancel the provision of any other work or local laws regulating construction or the performance of work. Signature: Date: Z — —S Print Name: _� 1, F2 Printed: 12 -19 -2005 doc: Conditions D05 -432 ILA, w , CITY OF T UKWI LA,_ ,\ Community Development partment Public Works Department Permit Center 1906 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 Applications and plans must be complete in order to be accepted for plan review. Applications will not be accepted through the mail or by fax. "Please Print ** SITE LOCATION . 1, King Co Assessor's Tax No.: (72i Site Address: 1b 22� 5 _` Jam. So , 7 l,(14,� i LA -I /Aq gvSuite Number: Floor: Tenant Name: IV/A New Tenant: ❑ .... Yes [lam] :.No Property Owners Name: elf —:FE 74�` �K p Mailing Address: 1 � 3 sv 5 �/, . 0, T� KCl i LA City State Zip CONTACT TERSON Name: Pp_E_ t'/ iL Day Telephone: / 2_Q6 ) Z —' Mailing Address: SAr7 A:-!-, A A 0yF_ City State Zip E -Mail Address: Fax Number: GENERAL CONTRACTOR INFORMATION; (Mechanical Contractor information on back page) Company Name: Mailing Address: City State Zip Contact Person: Day Telephone: E -Mail Address: Fax Number: Contractor Registration Number: Expiration Date: * *An original or notarized copy of current Washington State Contractor License must be presented at the time of permit issuance ** ARCHITECT OF, RECORD - All - plans must be wet stamped by Architect of Record Company Name: - Mailing Address: City State Zip Contact Person: Day Telephone: E -Mail Address: Fax Number: ENGINEER OF RECORD - plans must be wet stamped by Engineer of Record ' Company Name: Mailing Address: - 10213 L -02 c e iVF,_ ,;0211A/1(7f 6/A Z G v ! City State Zip �� N Contact Person: r Day Telephone: (,+ 2 T� r!J- E -Mail Address: Fax Number: (I* tT i q.\ \permits plus \ice changes\permit application (7 -2004) Revised: 66.05 Page 1 bh 1 r w uew r ` I�. Z Z ~ W � D J t) UO W= H U) LL. WO L? a =W zF_ HO W ~ W U� O- C1 t_ WW H- U_ O W Z U= O Z :PERMIT;INF0RM ' ON:-- 206 - 431. -3670 BUILDING Valuation of Project (contractor's bid price): $ L- I ,t�DD ' D D Existing Building Valuation: $ Scope of Work (please provide detailed information): 2 AI 4 Rt 1 CT i D /V D f — G�C�hI r_/Z -�? g l l� Gtl A G `S 1, Will there be new rack storage? ❑ .. Yes ❑ .. No If "yes ", see Handout No. for requirements. Provide.All Building Areas in Square Footage Below PLANNING DIVISION: Single family building footprint (area of the foundation of all structures, plus any decks over 18 inches and overhangs greater than 18 inches) *For an Accessory dwelling, provide the following: Lot Area (sq ft): Floor area of principal dwelling: Floor area for accessory dwelling: *Provide documentation that shows that the principal owner lives in one of the dwellings as his or her primary residence. Number of Parking Stalls Provided: Standard: Compact: Handicap: Will there be a change in use? ❑ ....Yes ❑ ..No If "yes ", explain: FIRE PROTECTIONMAZARDOUS MATERIALS: ❑.. Sprinklers ❑..Automatic Fire Alarm ❑..None El. Other (specify) Will there be storage or use of flammable, combustible or hazardous materials in the building? El.. Yes []..No If "yes ", attach list of materials and storage locations on a separate 8 -112 x I I paper indicating quantities and Material Safety Data Sheets. q:\ \permits plus \icc changes \permit application (7.2004) Revised 6.8.05 Page 2 bh I' 0 Z ;l— Z �W aa JU UO J = CO LL WO 9 -1 LL Q I 2 F_ W l— O Z F— W W U� ON o l— W LU NF- u- O W Z CO O Z Existin Interior Remodel Addition to Existing Structure New Type of Construction per IBC Type of Occupancy per IBC 1" Floor 2" d Floor 3 Id Floor Floors thru Basement . Accessory Structure* Attached Garage Detached Garage Attached Carport Detached Carport . Covered Deck . Uncovered Deck PLANNING DIVISION: Single family building footprint (area of the foundation of all structures, plus any decks over 18 inches and overhangs greater than 18 inches) *For an Accessory dwelling, provide the following: Lot Area (sq ft): Floor area of principal dwelling: Floor area for accessory dwelling: *Provide documentation that shows that the principal owner lives in one of the dwellings as his or her primary residence. Number of Parking Stalls Provided: Standard: Compact: Handicap: Will there be a change in use? ❑ ....Yes ❑ ..No If "yes ", explain: FIRE PROTECTIONMAZARDOUS MATERIALS: ❑.. Sprinklers ❑..Automatic Fire Alarm ❑..None El. Other (specify) Will there be storage or use of flammable, combustible or hazardous materials in the building? El.. Yes []..No If "yes ", attach list of materials and storage locations on a separate 8 -112 x I I paper indicating quantities and Material Safety Data Sheets. q:\ \permits plus \icc changes \permit application (7.2004) Revised 6.8.05 Page 2 bh I' 0 Z ;l— Z �W aa JU UO J = CO LL WO 9 -1 LL Q I 2 F_ W l— O Z F— W W U� ON o l— W LU NF- u- O W Z CO O Z PUBLIC'WORKS PERMIT IN TION x.206 -433 4179 i i Scope of Work (please provide detailed information): Please refer to Public Works Bulletin #1 for fees and estimate sheet. Water District ❑ ...Tukwila ❑ ... Water District # 125 ❑ .. Highline ❑ . Renton ❑ ...Water Availability Provided Sewer District ❑ ...Tukwila El ... ValVue El.. Renton ❑ ...Seattle ❑ ...Sewer Use Certificate El ... Sewer Availability Provided ❑ .. Approved Septic Plans Provided ❑ ...Septic System - For onsite septic system, provide 2 copies of a current septic design approval by King County Health Department. Submitted with Application (mark boxes which apply): ... Civil Plans (Maximum Paper Size —22" x 34 ") ❑...Technical Information Report (Storm Drainage) ❑ .. Geotechnical Report ❑ ... Traffic Impact Analysis ❑ ... Bond ❑ .. Insurance El.. Easements) ❑ .. Maintenance Agreement(s) ❑ ...Hold Harmless Proposed Activities (mark boxes that apply): + ❑ ... Right -of -way Use - Nonprofit for less than 72 hours ❑ ...Right -of -way Use - No Disturbance ❑ ...Construction/Excavation/Fill - Right -of -way Non Right -of -way _ ❑ ...Total Cut cubic yards ❑ ...Total Fill cubic yards El.. Right -of -way Use - Profit for less than 72 hours ❑ .. Right -of -way Use — Potential Disturbance ❑ .. Work in Flood Zone ❑ .. Storm Drainage Call before you Dig: 1- 800 - 424 -5555 FINANCE INFORMATION Fire Line Size at Property Line ❑ ... Water ❑ ... Sewer Monthly Service Billing to: Name: Number of Public Fire Hydrant(s) ❑ ... Sewage Treatment Day Telephone: Mailing Address: City state Zip Water Meter Refund/Billing: Name: Day Telephone: Mailing Address: City State Zip q.\ \permits plusl - icc changakpermit application (7-2004) Revised: 6.8.05 Page 3 bh Z Z �W 5 0 Cl) 0 CO U- 0 LL N d = W ~ 2 Z F- F- O Z t-- 5 U� C0 D F- = U. H� u —` O .• Z U= O Z []...Sanitary Side Sewer ❑ .. Abandon Septic Tank El .. Grease Interceptor ❑ ...Cap or Remove Utilities ❑ .. Curb Cut El.. Channelization "'' ❑ ...Frontage Improvements ❑ .. Pavement Cut ❑ .. Trench Excavation ❑ ...Traffic Control ❑ .. Looped Fire Line ❑ .. Utility Undergrounding ❑ ...Backflow Prevention - Fire Protection " 'i Irrigation " Domestic Water " ❑ ...Permanent Water Meter Size... WO# ❑ ...Temporary Water Meter Size.. WO# : "; ❑ ... Water Only Meter Size............ WO# ❑ ...Deduct Water Meter Size ........ " ❑ ...Sewer Main Extension ............ Public Private ❑ ... Water Main Extension ............. Public Private Call before you Dig: 1- 800 - 424 -5555 FINANCE INFORMATION Fire Line Size at Property Line ❑ ... Water ❑ ... Sewer Monthly Service Billing to: Name: Number of Public Fire Hydrant(s) ❑ ... Sewage Treatment Day Telephone: Mailing Address: City state Zip Water Meter Refund/Billing: Name: Day Telephone: Mailing Address: City State Zip q.\ \permits plusl - icc changakpermit application (7-2004) Revised: 6.8.05 Page 3 bh Z Z �W 5 0 Cl) 0 CO U- 0 LL N d = W ~ 2 Z F- F- O Z t-- 5 U� C0 D F- = U. H� u —` O .• Z U= O Z MECHANICAL PERMIT INFCIATION — 206 431 -3670 MECHANICAL CONTRACTOR INFORMATION Company Name: Mailing Address: City State Zip Contact Person: Day Telephone: E -Mail Address: Fax Number: Contractor Registration Number: Expiration Date: * *An original or notarized copy of current Washington State Contractor License must be presented at the time of permit issuance ** Valuation of Project (contractor's bid price): $ Scope of Work (please provide detailed information): Use: Residential: New .... ❑ Commercial: New ....❑ Fuel Type Electric ..... ❑ Gas....❑ Replacement..... ❑ Replacement..... ❑ Other: Indicate type of mechanical work being installed and the quantity below: Unit Type: Qty Unit Type: Qty Unit Type: Qty Boiler /Com pressor: Q Furnace <100K BTU Air Handling Unit >10,000 Fire Damper 0 -3 HP /100,000 BTU CFM Furnace >100K BTU Evaporator Cooler Diffuser 3 -15 HP /500,000 BTU Floor Furnace Ventilation Fan Connected Thermostat 15 -30 HP /1,000,000 BTU to Single Duct Suspended /Wall /Floor Ventilation System Wood/Gas Stove 30 -50 HP /1,750,000 BTU Mounted Heater Appliance Vent Hood and Duct Water Heater 50+ HP/1,750,000 BTU Repair or Addition to Incinerator - Domestic Emergency Heat/Refrig/Cooling Generator System Air Handling Unit Incinerator — Comm/Ind Other Mechanical <10,000 CFM Equipment PERMIT APPLICATION NOTES .- Applicable to all permits in this application Value of Construction — In all cases, a value of construction amount should be entered by the applicant. This figure will be reviewed and is subject to possible revision by the Permit Center to comply with current fee schedules. Expiration of Plan Review — Applications for which no permit is issued within 180 days following the date of application shall expire by limitation. The Building Official may grant one or more extensions of time for additional periods not exceeding 90 days each. The extension shall be requested in writing and justifiable cause demonstrated. Section 105.3.2 International Building Code (current edition). I HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE UNDER PENALTY OF PERJURY BY THE LAWS OF THE STATE OF WASHINGTON, AND I AM AUTHORIZED TO APPLY FOR THIS PERMIT. BUILDING OWNER OR AUTHORIZED AGENT: Signature: :� r 7 IL Date: Z 'd Z Print Name: � �t �-`r ��� Day Telephone: �'Z2G) Z 5 - 4-3 1d Mailing Address: ctty Date Application Accepted: Date Application Expires: qA \permits plus \ice clunges\pennit application ( Revised 6.8.05 Page 4 1111 Staff Initials: Z J- Z W W �U UO N0 CO LLI J = l.— CO u_ WO La CO F_ W Z f- H O Z l-- w W U� ON 0 1-- W- H -O W Z CO O Z .?A City of Tul�wlla 6300 Southcenter BL, Suite 100 / Tukwila, WA 98188 I (206) 431 -3670 RECEIPT i 4 Parcel No.: 5379200203 Address: 16227 54 AV S TUKW Suite No: Applicant: EK RESIDENCE Permit Number Status: Applied Date: Issue Date: DOS -432 APPROVED 12/02/2005 Receipt No.: R05 -01815 Payment Amount: 124.92 Initials: LAW Payment Date: 12/19/2005 02:54 PM User ID: 1630 Balance: $0.00 I Payee: JEFFREY EK TRANSACTION LIST: Type Method Description - - -- - - - - -- --------------------- Amount - - - - -- ------ - - - - -- j ---- - - -- Payment Check 3415 124.92 ACCOUNT ITEM LIST: Description Account Code Current Pmts ------------------------ - - - - -- ---------- - - - - -- ------ - - - - -- BUILDING - NONRES 000/322.100 120.42 STATE BUILDING SURCHARGE 000/386.904 4.50 Total: 124.92 G 59 - L�2/1" 9716 T'f)Ti?[. 1 r ' doc: Receipt Printed: 12 -19 -2005 z W' o � JU UO J cn .u. w O LL = C1 I— _ z� Zo w Ljj U :O N OH LLI 2U LL Z W v =. o'' z City of Tulcwila 6300 Southcenter BL, Suite 100 / Tukwila, WA 98188 / (206) 431 -3670 RECEIPT Parcel No.: 5379200203 Address: 16227 54 AV S TUKW Suite No: Applicant: EK RESIDENCE Permit Number: Status: Applied Date: Issue Date: DOS -432 PENDING 12/02/2005 Receipt No.: ROS -01738 Initials: JEM User ID: 1165 Payment Amount: Payment Date: Balance: 78.27 12/02/2005 09:03 AM $124.92 'Payee: JEFFREY EK TRANSACTION LIST: Type Method Description Amount ---- - - - - -- -- - - - - -- --------------------- - - - - -- ------ - - - - -- Payment Check 3410 78.27 ..ACCOUNT ITEM LIST: Description Account Code Current Pmts ------------------------ - - - - -- ---------- - - - - -- ------ - - - - -- PLAN CHECK - NONRES 000/345.830 78.27 Total: 78.27 90)45 12/02 V16 TOTAL 78 - 217 doc: Receipt Printed: 12 -02 -2005 -- .. z Z mo U: Q � JU UO CO ) o ul J � .O. W J u- cl)O F-- _ z �. 1--0 z 1- w � o` U O N o�- W W . �U U. O. Lll z U= O z INSPECTION RECORD Retain a copy with permit �y- INSPECTION NO. P IT 0. CITY OF TUKWILA BUILDING DIVISIO 6300 Southcenter Blvd., #100, Tukwila, WA 98188 (06)431 -367` Project: Type of Inspection: 154 ,Approved per applicable codes. � i Corrections required prior to approval. COMMENTS: a 7 D t Receipt No.: Date: Inspe or: \ Date: r 58.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be aid at 6300 Southcenter Blvd., Suite 100. Call to sechedule reinspection. 9 Z �W QQ � JU . 0 CO U) LLJ J = S2 U- W O LQ JU) = F . W Z0 W LLJ U co OH W W 2 H L). U- Z lj U= O f- z Addr ,?- 7 C Date Called: Special Instructions: Date Wanted: � � a. m. n Requester: Ph ne o: Corrections required prior to approval. COMMENTS: a 7 D t Receipt No.: Date: Inspe or: \ Date: r 58.00 REINSPECTION FEE REQUIRED. Prior to inspection, fee must be aid at 6300 Southcenter Blvd., Suite 100. Call to sechedule reinspection. 9 Z �W QQ � JU . 0 CO U) LLJ J = S2 U- W O LQ JU) = F . W Z0 W LLJ U co OH W W 2 H L). U- Z lj U= O f- z ' a INSPECTION RECORD 1 /00 5-`�3 '. Retain a copy with permit INSPECTION NO. PER O. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd., #100, Tukwila, WA 98188 20 )431 -3 0 Project: Type of Inspection: I Approved per applicable codes. n Corrections required prior to approval. Inspector: `� Date: $58.00 REINSPECT1011FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to sechedule reinspection. Receipt No.: Date: Z = Z JU UO N J H (D L. WO 9 -1 LL Q = W H =. Z f.. z I-- �5 U0 O N. �H WW H� Z 111 UN i— _ O I+, Z Address: Date Called: Speci I Instructions: Date Wanted: , Requester. 1 Phone No: -. l_ G1 Approved per applicable codes. n Corrections required prior to approval. Inspector: `� Date: $58.00 REINSPECT1011FEE REQUIRED. Prior to inspection, fee must be paid at 6300 Southcenter Blvd., Suite 100. Call to sechedule reinspection. Receipt No.: Date: Z = Z JU UO N J H (D L. WO 9 -1 LL Q = W H =. Z f.. z I-- �5 U0 O N. �H WW H� Z 111 UN i— _ O I+, Z INSPECTION RECORD Retain a copy with permit - �.3 INSPECTION NO. PEUTNN CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd., #100, Tukwila, WA 98188 (206)431 -36 0 Project: Type of Inspection: Address: V Date Called: Special Instructions: 0�3 Date Wanted: / .m /24 e: p.m. Requester: Phone Nm za 6 _ 3 i i fft No.: Date: ::1 paid at 6300 Southcenter Blvd., Suite 100. Call to sechedule reinspection. 0 Z � W QQ � JU 00 U CO III J H � .u_ w O Ua to � = Z = F— I— O Z I-- W W U O N 01-- WW LL LLI Z N H X, O Z Approved per applicable codes. Corrections required prior to approval. ,�. „ . rn, 1q,, Perm No. t ti GEOTECHNICAL ENGINEERING STUDY PROPOSED SINGLE - FAMILY RESIDENCE . 4 16227 - 54 AVENUE SOUTH 5 U TUKWILA, WASHINGTON L &A Job No. 5AO53 a REVIEWED CODE COMPLIANCE DEC 15 2005 .. , •- M UMMA �U Nrr n1��1x�N RECEIVED CITY OF TUKWIIA DEC 0 2 2005 PERMIT CENTER i i ! LIU & ASSOCIAT ES, INC Geolechnical Engineering Engineering Geology - Earth Science i z Z. �w QQD JU UO, N 0 J = H S2 LL ww� C �_j w< � w z� z O. W Lu U O -. o �- w w. L L w z U= O Z DOS - �132- LIU & ASSOCIATES, INC. Geotechnical Engineering Engineering Geology Earth Science May 23, 2005 Mr. Jeffrey Ek 16350-53 d Place South Tukwila, WA 98188 Dear Mr. Ek: Subject: Geotechnical Engineering Study Proposed Single - Family Residence 16227 — 54` Avenue South Tukwila, Washington L &A Job No. 5AO53 INTRODUCTION We have completed a geotechnical engineering study for the site of a proposed new single - family residence located at the above address in Mukilteo, Washington. The subject site is located at 16227 — 54` Avenue South in Tukwila, Washington. The Parcel No. of the property is 5379200203. The general location of the site is shown on Plate 1 — Vicinity Map. The purpose of this study is to characterize the subsurface conditions of the site and provide geotechnical recommendations for grading, surface and ground water control, erosion abatement, site stabilization, and foundation design and construction. Presented in this report are our findings and geotechnical recommendations for the proposed development of the site. PROJECT DESCRIPTION For our use in this study, you provided us with a topographic survey plan of the site. As shown on Plate 2 - Site Plan and Exploration Location Plan, the subject site is a rectangular- shaped, building lot, measuring 85 feet (north- south) by 125 feet (east- west). The existing house on the site will be demolished to make way for the proposed new single- family residence. The architectural design plans for the new building are not yet available at the time this report is 19213 Kenlake Place NE - Kenmore, Washington 98028 Phone (425) 483 -9134 - Fax (425) 486 -2746 Z I` w D 30 00 N 0 CO ,U- 0 �Q cl) i �w z �- 0 Z H �5 �p O N 0 E- wW ti U= O Z 1 ,....a;w .�.:a.. ui..ar...1r.:! <s;khi:la. 5:w17:,�a.::�ie'c' ' G:,; i+ i; tE'. aitiefJaL: wi,: i., ycr;,. t: sY.::,: u. d.:>. 1a1s+... rJtwt' �J+. 11.,:. 3..:.s;t.::t�.::yn.7::.:.:.:+,l a.,. r.:a:3.t�:1..:»:aL:;.i...:.:c+r May 23, 2005 Single- Family Residence L &A Job No. 5AO53 Page 2 prepared, but we understand that the new building will be an above - grade, two -to- three -story, wood - framed structure supported on concrete stemwalls and footings. We estimate that only minor cut and fill will be required for the grading and construction of the proposed new residence. SCOPE OF SERVICES Our scope of services for this study comprises specifically the following: 1 Review the geologic and soil conditions at the site based on a published geologic map. 2. Explore the subsurface conditions of the site with backhoe test pits. 3. Perform necessary geotechnical analyses and provide geotechnical recommendations for site grading, erosion abatement, surface and ground water control, site stabilization, and foundation design and construction, based on subsurface conditions encountered in the test pits and results of our geotechnical analyses. 4. Prepare a written report to present our findings, conclusions, and recommendations. SITE CONDITIONS SURFACE CONDITIONS The subject site is bounded by Slade Way to the north and 50 Avenue South to the east, and is adjoined by single - family residences to the south and west. The site is situated on the mid -slope of a moderate to steep, easterly- declining hillside. An existing house currently occupies the eastern portion of the site. A garage or carport was demolished, leaving a relic concrete floor slab at the midway along the west side of the site. The unpaved areas to the north and east of the existing house is covered by lawn grass and the remaining areas are over -grown with berry bushes and tall grass. Z �w QQ JU UO N 0. C0 W J = F-- (1) o. w� La (J) D Cl �w Z F- z O W w U co o E- ww LO ui Z CO) o Z LIU & ASSOCIATES, INC. The geology of the Puget Sound Lowland has been modified by the advance and retreat of several glaciers in the past and subsequent deposits and erosion. The latest glacier advanced to the Puget Sound Lowland is referred to as the Vashon Stade of the Fraser Glaciation, which has occurred during the later stages of the Pleistocene Epoch and retreated from the region some 14,500 years ago. The glacial till was deposited directly by glacial ice during the most recent glacial period as it advanced over an eroded, irregular surface of older formations and sediments. It is a very dense mixture of unsorted clay, silt, sand, gravel, and scattered cobbles and boulders, often referred to as "hard pan". The glacial till over the top two to four feet is normally weathered to a medium dense state, and is moderately permeable and compressible. The underlying fresh till is very LIU & ASSOCIATES, INC. z May 23, 2005 y" Single- Family Residence L &A Job No. 5AO53 Page 3 z According to the topographic survey plan you provided us, about the eastern half of the site is �w ul v nearly level, while the western half of the site generally slopes down eastward at grades from 13 N o to 29 percent, interrupted by tiers of rockery walls. The rockery walls along the western half of W T_ the south side and along the western fringe of the current backyard are less than 4 feet tall, N LL w o Another existing rockery, located inside the street right -of -ways along the eastern half of the north boundary and most of the east boundary of the site, varies from about a foot or two feet at LL = N d =w its ends to about 6 feet tall at its northeast corner above the adjacent streets. ~ _ z� i �- 0 Z H GEOLOGIC SETTING W = Q U The Preliminary Geologic Map of Seattle and Vicinity, Washington by H. H. Waldron, B. A. 0 --, Liesch D. R. Mullineaux and D. R. Crandell ,published by U. S. Geological Survey in 1962, w 7: � 1 was referenced for the geologic and soil conditions at the site. According to this publication, the "—" z j surficial soil units at and in the vicinity of the site is mapped as Glacial Till (Qt) overlain by v Younger Gravel (Qyg). f- z The geology of the Puget Sound Lowland has been modified by the advance and retreat of several glaciers in the past and subsequent deposits and erosion. The latest glacier advanced to the Puget Sound Lowland is referred to as the Vashon Stade of the Fraser Glaciation, which has occurred during the later stages of the Pleistocene Epoch and retreated from the region some 14,500 years ago. The glacial till was deposited directly by glacial ice during the most recent glacial period as it advanced over an eroded, irregular surface of older formations and sediments. It is a very dense mixture of unsorted clay, silt, sand, gravel, and scattered cobbles and boulders, often referred to as "hard pan". The glacial till over the top two to four feet is normally weathered to a medium dense state, and is moderately permeable and compressible. The underlying fresh till is very LIU & ASSOCIATES, INC. May 23, 2005 Single- Family Residence L &A Job No. 5AO53 Page 4 . dense and is practically impervious to stormwater infiltration. The fresh till has the strength of low -grade concrete and can stand in steep natural or cut slopes for a long period. If remains undisturbed and well - drained, the fresh till can provide excellent foundation support with little settlement expected. The younger glacial soil unit is composed of gravel- dominated recessional outwash, laid down by meltwater of the stagnating and receding Vashon glacier. It consists of gravelly fine to medium sand with minor amounts of cobble. Because it had not been over - ridden by the retreating glacier, the younger gravel deposits are generally loose and can be very easily eroded. This soil unit, however, is not encountered by the test pits excavated on the subject site. SUBSURFACE CONDITIONS Subsurface conditions of the subject site were explored on May 17, 2005, with four test pits. The test pits were excavated with a tire- mounted backhoe to depths of 6.0 to 8.5 feet. The approximate locations of the test pits are shown on Plate 2 - Site and Exploration Location Plan. The test pits were located with either a tape measure or by visual reference to existing topographic features in the field and on the topographic survey map, and their locations should be considered only accurate to the measuring method used. ..A geotechnical engineer from our office was present during subsurface exploration, who examined the soil and geologic conditions encountered and completed logs of test pits. Soil samples obtained from each soil unit in the test pits were visually classified in general accordance with United Soil Classification System, a copy of which is presented on Plate 3. Detailed descriptions of soils encountered during site exploration are presented in test pit logs on Plates 4 and 5. z Z �w Q � W UO N Cl) UJ J = H N LL w U_Q ca d =w z� �_o w ~ w U ON Q1__ Llj LL O z .. w U =. O z f .. LIU & ASSOCIATES, INC. 23, 2005 e- Family Residence L&A Job No. 5AO53 Page 5 Test Pits 2 and 4, located at the east end and in the southeastern corner area of the site, encountered loose to medium -dense fill, containing organic soils and occasional wood debris and concrete rubble, about 4.6 and 2.0 feet thick, respectively. The presence of fill appears to indicate that the eastern portion of the site is behind the rockery is graded level with fill. The fill is underlain by a layer of relic, loose, organic topsoil, about 1.2 to 2.0 feet thick. Test Pits 1 and 3, located in the central north and south sides of the site encountered loose topsoil, about 1.0 to 2.5 feet thick. Underlying the topsoil to the depths explored are glacial till deposits of medium- dense to dense to very dense, silty fine sand, with a trace of gravel and cobble, except in Test Pit 2 where a very stiff to hard fine sandy silt deposit was encountered underlying the relic topsoil. Fresh, dense to very dense till soils were generally encountered at about 4.5 feet deep. GROUNDWATER CONDITION Only one test pit (Test Pit 4) encountered a trickle (less than 0.5 gallon - per minute) of groundwater seepage. The groundwater in Test Pit 4 was perching on an underlying, practically impervious, fresh till deposit encountered at 4.5 feet deep. The depth to and the amount of perched groundwater may fluctuate seasonally, depending on precipitation, surface runoff, ground vegetation cover, site utilization, and other factors. This perched groundwater may completely dry up in summer and accumulate and rise in the wet winter months. DISCUSSIONS AND RECOMMENDATIONS GENERAL Based on the geologic and soil conditions encountered by the test pits, it is our opinion that the proposed development for the subject site is feasible from the geotechnical engineering viewpoint, provided that the recommendations in this report are fully implemented and observed during construction. The surficial loose fill, topsoil, and weak soils should be completely stripped within the building pad of the proposed new building, the driveway and in areas where LIU & ASSOCIATES, INC. Z Z �w aa 30 00 00 CO W J H CO U_ w CO =w z� �O z�_ 25 U O N 0 H- wW F- IL O ..z W 0 O Z iy 23, 2005 igle- Family Residence �. iA Job No. SA053 Page 6 the subgrade soils are to support traffic or structural load. The underlying, dense to very dense, fresh till soils and very stiff to hard fine sandy silt soils are of high shear strength, and conventional footing foundations constructed on or into these competent deposits may be used for supporting the proposed new building. The on -site surficial soils contain a high percentage of fines, and is sensitive to moisture. They can also be saturated quickly and result in heavy runoff with potential soil erosion over the steeper portion of the site during extended periods of heavy rainstorms. One or multiple lines of curtain drains should be installed along the upslope side of the site, as required, to intercept and drain surface runoff and near - surface perched groundwater to minimize soil erosion and facilitate site grading during construction. GEOLOGIC HAZARDS j Landslide Hazards According to the Sensitive Areas Map (iMAP — Sensitive Areas posted on DDES web site) compiled by the King County Department of Development and Environmental Services (DDES), I the subject site is not mapped within erosion hazard or landslide hazard areas. The terrain . within the site, interrupted by tiers of rockery, is nearly level to moderately sloped. The rockery wall within the site is less than 4 feet tall. The rockery within the street right -of -ways, to the north and east of the site, is up to about 6 feet tall. All these rockery walls appear to be stable without signs of distress or movement. The site is underlain at shallow depth by very dense fresh glacial till and /or very stiff to hard fine sandy silty deposit of high shear strength. These + competent basal soil deposits in combination with gentle to moderately steep terrain of the site should make it unlikely for deep- seated landslides to occur on the site. LIU & ASSOCIATES, INC. _ ....1..... �...A.. «..... �..... .... . ,..u..�+- rr�.:....Mrv- i:...dJ.i• i^u '. w" li. a4t iH :.<1{+{k�.:'wi. +'vl+lld.�%iiJ A i. 41:. <v�.�9aiYelkL�yry, Z z �W QQ JU U0 CO to W J � CO U_ w J U.. Q W � = a F . W z z� �5 U o W W U_ O .Z U CO: H � Z lay 23, 2005 mingle- Family Residence L &A Job No. 5AO53 Page 7 Erosion Hazard The surftcial, loose topsoil over the steeper portion of the site can be eroded easily when stripped of vegetation cover. Shallow, skin -type, mudflows may occur in these weak surftcial soils over the steeper areas if they are overly saturated. To mitigate such erosion and mudflow potential, the vegetation cover over the site outside of the construction limits should be maintained. Unpaved ground resulting from construction activities should be re- vegetated as soon as possible. Concentrated stormwater should not be discharged onto the ground within the site. Spoil soils and yardwaste should. not be disposed of within the site. Storm runoff over impervious surfaces, such as roofs or pavement, should be captured with underground drain line systems tied to roof downspouts or by catch basins installed in the pavement, and tightlined to discharge into a storm sewer. Seismic Hazard The Puget Sound region is in an active seismic zone. The site is underlain at shallow depth by competent soils of high shear strength. There is a lack of a extensive, static, groundwater table within shallow depth under the site. The combination of the above makes it unlikely for liquefaction or soil lateral spreading to occur on the site during strong earthquakes. Therefore, the seismic hazard should be minimal for the site. The new building, however, should be designed to withstand seismic forces induced by strong earthquakes. Based on the soil conditions encountered by the test borings, it is our opinion that Seismic Use Group I and Site Class D should be used in the seismic design of the proposed building in accordance with the 2003 International Building Code (IBC) referenced by the 2003 International Residential Code (IRC). SITE PREPARATION AND GENERAL GRADING Site preparation for the construction of the residence should include clearing and grubbing within construction limits. Loose fill, topsoil, and weak soils should be completely stripped within the LIU & ASSOCIATES, INC. Z �Z tr � D JU UO to o (0 w J H N U_ w U? to =w ►= O Z 25 U O- o�_ wW F- U- O ui Z co Z ' geotechnical engineer during excavation. Permanent fill embankments required to support structural or traffic loads should be constructed with compacted structural fill placed over proof - rolled, undisturbed, dense to very-dense fresh till or very -stiff to hard fine sandy silt soils after the unsuitable surficial soils are stripped. Permanent fill to be placed on slopes steeper than 20 percent grade should be retained structurally. Sloping ground exceeding 15 percent grade over which fill is to be placed should be benched with vertical steps no more than 4 feet high after stripping of unsuitable surficial soils. LIU & ASSOCIATES, INC. May 23, 2005 r` Single- Family Residence L &A Job No. 5AO53 Page 8 z � building pad and in areas subject to traffic and structural load. The exposed soils should be g compacted to a non - yielding state with a vibratory compactor. 0 0 N o w The on -site soils contain a high percentage of fines and are sensitive to moisture. A layer of __ Cf) o UJ clean quarry spalls should be placed over excavated areas and areas of frequent traffic, as required, to protect the subgrade soils from disturbance by construction traffic. Silt fences U_ c CY should be erected along the downslope boundaries of the site to prevent sediments being w transported onto adjoining properties or the street. The bottom edge of the silt fence should be z = o embedded in a trench and ballasted with crushed rock or gravel. z F- UJ UJ I D 0 U 0— EXCAVATION AND FILL SLOPES i ° ~ Under no circumstance should excavation slopes be steeper than the limits specified by local, = w LL —O state and federal safety regulations if workers have to perform construction work in excavated i - Z to s areas. Unsupported temporary cuts greater than 4 feet in height should be no steeper than 1 H:1 V U 0 F. in the surficial fill, topsoil and weak soils, and no steeper than 1 /2H:1V in the underlying, dense Z to very -dense fresh till or the very-stiff to hard fine sandy silt soils. Permanent cut banks should be no steeper than 21/4H: 1V in the surficial loose fill, topsoil and weak soils, and no steeper than 1- 1 /2H:1V in the underlying, dense to very-dense fresh till or very-stiff to hard fine sandy silt soils. The soil units and the stability of cut slopes should be observed and verified by a ' geotechnical engineer during excavation. Permanent fill embankments required to support structural or traffic loads should be constructed with compacted structural fill placed over proof - rolled, undisturbed, dense to very-dense fresh till or very -stiff to hard fine sandy silt soils after the unsuitable surficial soils are stripped. Permanent fill to be placed on slopes steeper than 20 percent grade should be retained structurally. Sloping ground exceeding 15 percent grade over which fill is to be placed should be benched with vertical steps no more than 4 feet high after stripping of unsuitable surficial soils. LIU & ASSOCIATES, INC. y 23, 2005 gle- Family Residence L&A Job No. 5AO53 Page 9 Upon completion, the sloping face of permanent fill embankments should be thoroughly compacted to a non - yielding state with a hoe -pack. Also, permanent cut or fill slopes should be no steeper than 4H: IV within 15 feet of the building footprint. The above recommended cut and fill slopes are under the assumption that groundwater seepage will not be encountered during construction. If encountered, the construction work should be immediately halted and the slope stability re- evaluated. The slopes may have to be flattened and other measures taken to stabilize the slopes. Storm runoff should not be allowed to flow uncontrolled over the top of cut or fill slopes. One or multiple lines of interceptor curtain drains should be installed, as required, on the uphill side of the site to be graded to intercept and safely drain away surface runoff and near- surface groundwater flow. Permanent cut slopes or fill embankments should be seeded and vegetated as soon as possible for erosion protection and long -term stability, and should be covered with plastic sheets, as required, to protcct them from erosion by stormwater until the vegetation is fully established. STRUCTURAL FILL Structural fill is the fill that supports structural or traffic load. Structural fill should consist of clean soils free of organic and other deleterious substances and with particles not larger than four inches. Structural fill should have a moisture content within one percent of its optimum moisture content at the time of placement. The optimum moisture content is the water content in the soil that enable the soil to be compacted to the highest dry density for a given compaction effort. The on -site soils contain a high percentage of fines, and may be used as structural fill only under ' fair weather condition when its moisture content can be controlled to close to its optimum moisture content. Imported material for structural fill should be clean, free - draining, granular soils containing no more than 5% by weight finer than the No. 200 sieve based on the fraction of LIU & ASSOCIATES, INC. Z Z �w QQ 2 JU 00 0 0 J W.U. w UQ co =w z� �_0 z�_ U� o F- wW X u. 0 Z w co O Z May 23, 2005 Single - Family Residence L &A Job No. 5A053 Page 10 the material passing No. 4 sieve, and should have individual particles not larger than four inches. Imported structural fill should be stockpiled and covered separately from the on -site soils. Structural fill should be placed in lifts no more than 10 inches thick in loose state, with each lift compacted to a minimum percentage of the maximum dry density determined by ASTM D1557 (Modified Proctor Method) as follows: Application Within building pads % of Maximum Dry Density Roadway /driveway subgrade Retaining wall backfill Utility trench backfill 95% 95% for top 2 feet and 90% below 90% 95% for top 4 feet and 90% below BUILDING FOUNDATIONS Conventional footing foundations may be used for supporting the proposed residence. The footing foundations should be placed on or into the underlying, dense to very-dense fresh till or very-stiff to hard fine sandy silt soils. To reach these competent bearing soils, the footing trenches will have to be excavated to about 4.5 to 5.0 feet below the existing grade. The exposed soils in the footing trenches should be compacted to a non - yielding state with a vibratory mechanical compacted and protected with a layer of compacted 2- inch -minus crushed rock at least 6 -inch thick. Water should not be allowed to accumulate in excavated footing trenches. Disturbed soils in footing trenches should be completely removed down to firm native prior to pouring concrete for the footings. If the above recommendations are followed, our recommended design criteria for footing foundations are as follows: LIU & ASSOCIATES, INC. z �z �w aa � JU 000 CO W= J � (n .U- w U _ = �w z z 0 W W U 0 - o�_ = U �- 0 W z U= 0 z May 23, 2005 Single - Family Residence L &A Job No. 5AO53 Page 11 • The allowable soil bearing pressure for footing foundations, including dead and live loads, should be no greater than 2,500 psf. The footing bearing soils should be verified on -site by a geotechnical engineer after the footing trenches are excavated and before the footings poured. • The minimum depth to bottom of perimeter footings below adjacent final exterior grade should be no less than 18 inches. The minimum depth to bottom of the interior footings below top of floor slab should be no less than 12 inches. • The minimum width should be no less than 16 inches for continuous footings, and no less than 24 inches for individual footings. A one -third increase in the above recommended allowable soil bearing pressure may be used when considering short-term, transitory, wind or seismic loads. For footing foundations designed and constructed per recommendations above, we estimate that the maximum total post - construction settlement of the buildings should be 1/2 inch or less and the differential settlement across building width should be 3/8 inch or less. Lateral loads on buildings can be resisted by the friction force between the foundations and the subgrade soils or the passive earth pressure acting on the below -grade portion of the foundations. For the latter, the foundations must be poured "neat" against undisturbed soils or backfilled with a clean, free - draining, compacted structural fill. We recommend that an equivalent fluid density (EFD) of 350 pcf (pounds per cubic foot) for the passive earth pressure be used for lateral resistance. The above passive pressure assumes that the backfill is level or inclines upward away from the foundations for a horizontal distance at least twice the depth of the foundations below the final grade. A coefficient of friction of 0.60 between the foundations and the subgrade soils may be used. The above soil parameters are unfactored values, and a proper factor of safety should be used in calculating the resisting forces against lateral loads on the buildings. LIU & ASSOCIATES, INC. :1. .ti,. .5: . t:: ;n::4: :.j,: 1..::fi.'„rdl w'liys:.v�`Li5.:t3fi�#i +%%uW: �s . ,.5�'i �a:`i.�S,�ddX,:.'?: }• ";. !R .a .L.. r. � y✓',1i ,. �iuCti:.. �:: a:.; �.+ t�.: isw .u�M.- .:sL.. +�cui..si��.il'v::. Z w JU UQ N J = CO W w LL ?. � = w z �O Z f_ W 25 U O - o f- wW LO ..z w U= Z May 23, 2005 Single- Family Residence L &A Job No. 5A053 Page 12 BUILDING SETBACK The purpose of building setback from the top or toe or an overly steep portion of a slope is to establish a buffer zone between the structure and the slope, such that if a slope failure should occur, the damages to the structure can be minimized. To maintain stability of and minimize damages to the proposed new building, we recommend that building be set back at least 15 feet from the rockery walls in the street right -of -ways to the north and east of the site. Also, a plane drawn from the edges of footings to the toe of the adjacent rockery walls should be no steeper than 3H:1V. The footing foundations of the building should be seated on or into the underlying dense to very-dense fresh till or the very-stiff to hard fine sandy silt soils, as recommended in the BUILDING FOUNDATIONS section of this report. SLAB -ON -GRADE FLOORS Slab -on -grade floors, if used, should be placed on firm subgrade prepared as outlined in the SITE PREPARATION AND GENERAL EARTHWORK and the STRUCTURAL FILL sections of this report. Where moisture control is critical, the slab -on -grade floors should be placed on a capillary break which is in turn placed on the compacted subgrade. The capillary break should consist of a minimum four - inch -thick layer of clean, free- draining, 7/8 -inch crushed rock, containing no more than 5 percent by weight passing the No. 4 sieve. A vapor barrier, such as a 6 -mil plastic membrane, may be placed over the capillary break, as required, to keep moisture from migrating upwards. SITE DRAINAGE Building Footprint Excavation We do not expect groundwater of any significance to be encountered by building footprint excavation. If encountered, a ditch or curtain drain may be installed along the uphill side of the building footprint to intercept and drain away surface runoff and near - surface groundwater. LIU & ASSOCIATES, INC. Z z �w JU UO Cl) C0 LU J � N w 0 9_J LL¢ cl) = �w z �o Z H_ W W U o - 0H W F� LL O w z v= O~ Z t . May 23, 2005 Single- Family Residence z; L &A Job No. 5A053 Page 13 Also, the bottom of building footprint excavation should be sloped and ditches excavated along the bases of the cut banks to direct runoff and groundwater into a sump pit from which water can be pumped into a storm sewer. The inlet of the storm sewer should be covered by a filter sag to keep sediments out of the sewer line. A layer of 2 -inch crushed rock should be placed over undisturbed subgrade soils supporting footings and on -grade slabs, as required, to protect the soils from disturbance by construction traffic. Runoff over Impervious Surfaces Storm runoff over impervious surfaces, such as roofs and driveway pavement, should be collected by underground drain line systems connected to downspouts and by catch basins installed in the pavement. Stormwater thus collected should be tightlined to discharge into a storm sewer. Sufficient numbers of cleanouts at strategic locations should be provided to the underground drain line systems to allow for periodical cleaning of the drain lines. Footing Drains A subdrain should be installed around the perimeter footings of the proposed new building. The subdrain should consist of a 4- inch - minimum- diameter, perforated, rigid, drain pipe, laid a few inches below bottom of the building perimeter footings or retaining wall footings. The trench and the drain line should have a sufficient gradient to generate flow by gravity. The drain line should be embedded in washed gravel completely wrapped in non -woven filter fabric to within about 12 inches of finish grade. The remaining trench may be backfilled with clean on -site soils. Sufficient numbers of cleanouts at strategic locations should be provided to the footing drain line to allow for their periodical cleaning and maintenance. Water collected by the footing drain should be tightlined, separately from the roof and surface stormwater drain systems, to discharge into a storm sewer. z �z '~ w JU U U J � .U_ w L L = �w Z �_O z �_ W LLJ �O U Cl) D 1- wW � �. LO w z CO O~ z LIU & ASSOCIATES, INC. r 23, 200 ; le -Fami ly,,Residence k Job No. SA053 rage 14 I Y RISK EVALUATION STATEMENT -. A t:, The site is underlain at 'shallow depth by competent basal soils of high shear strength. These soils have good resistance against slope failures. The key to maintain stability of the site is to have proper and adequate erosion and drainage control. It is our opinion that if the recommendations in the report are implemented and observed, the geologic hazard of the site will be stabilized and the site can maintain stability during and after construction. And, if the recommendations are incorporated into the design of the proposed development, the risk of damages to the subject property and its adjacent properties will be eliminated or mitigated. LIMITATIONS This report has been prepared for the specific application to this project for the exclusive use by the Mr. Jeffrey Ek and his associates, representative, consultants and contractors. We recommend that this report, in its entirety, be included in the project contract documents for the information of the prospective contractors for their estimating and bidding purposes. The i conclusions and interpretations in this report, however, should not be construed as a warranty of i the subsurface conditions. The scope of this study does not include services related to construction safety precautions and our recommendations are not intended to direct the contractor's methods, techniques, sequences or procedures, except as specifically described in j this report for design considerations. Our recommendations and conclusions are based on the geologic and soil conditions encountered in the test pits, and our experience and engineering judgment. The conclusions and recommendations are professional opinions derived in a manner consistent with the level of care and skill ordinarily exercised by other members of the profession currently practicing under similar conditions in this area. No warranty, expressed or implied, is made. LIU & ASSOCIATES, INC. Z Z a , w �U 00 (/) w= J F- N U- w LL Q. C0 : =d F - w Z f-- O Z f-- w w U� O� o� ww LO ..z W Cl) o Z V 23, 2005 ;le- Family Residence k Job No. 5AO53 15 _ .._ actual subsurface conditions of the site may vary from those encountered by the test pits. The nature and extent of such variations may not become evident until construction starts. If variations appear then, we should be retained to re- evaluate the recommendations of this report, and to verify or modify them in writing prior to proceeding further with the construction. CLOSURE We are pleased to be of service to you on this project. Please feel free to call us if you have any questions regarding this report or need further consultation. ti H o f WAS Vol r �~ O 2156 - r w - fts 7117/ Five plates attached Yours very truly, LIU OCIATES, INC. J. S. (Julian) Liu, Ph.D., P.E. Consulting Geotechnical Engineer LIU & ASSOCIATES, INC. z Z : �w ug D UQ w= J CO U. w 0 U . C/) D = w z �. ZO W �p U o� w LL Z 111 U= O z i 'i IN 111% 1 7 173RD N VICINITY MAP LIU & ASSOCIATES INC. SINGLE - FAMILY RESIDENCE 16227 - 54TH AVENUE SOUTH Geotechnical Engineering • Engineering Geology • Earth Science TUKWILA, WASHINGTON JOB N(1 nnnGV - - ..... ....... .........v..}.,ut.+:..•.n'.xvti ii { ^�../i�l+..itive /wa E� /'iM�J xa��Yrt: /��,'q NTC ar I t NTH 1 REXTOH WETLANDS Z Q Z UO t o Cl J H NLL WO � 2 F.. W Z F— ZO �5 0 U ON o t- WW I^ H O Z W c o O Z S ' 139TH r t ;;c a 4a0C C K L 14 r L. FOSTER • HS 144 a ` FS r 6 1 ST 200 r S 1 ST 2 � i 'i IN 111% 1 7 173RD N VICINITY MAP LIU & ASSOCIATES INC. SINGLE - FAMILY RESIDENCE 16227 - 54TH AVENUE SOUTH Geotechnical Engineering • Engineering Geology • Earth Science TUKWILA, WASHINGTON JOB N(1 nnnGV - - ..... ....... .........v..}.,ut.+:..•.n'.xvti ii { ^�../i�l+..itive /wa E� /'iM�J xa��Yrt: /��,'q NTC ar I t NTH 1 REXTOH WETLANDS Z Q Z UO t o Cl J H NLL WO � 2 F.. W Z F— ZO �5 0 U ON o t- WW I^ H O Z W c o O Z .... .. I BM. IT 1 7 �.j �gw 05-9. 16227 &Xs,�' c F P_0CAeAMY WAZA:- _. ___... p i � co / a I '�, �; � � 15 r�P� Fav�, 7 \ce 6A6 c p./ iZ _N 0 / •6MOM EX/5M A�_ ' N \� C/' 720 54 DCHOZ-15V-1,�;V 2• MfV6WAY(*) - 4 L L zr 54 ih. A V9 �. SITE AND EXPLORATION LOCATION PLAN & ASSOCIATES, INC. SINGLE-FAMILY RESIDENCE 16227 - 54TH AVENUE SOUTH Z W 2 D 00 V) a (a w W N U- W 0 2� 9-1 u- < D W z WO U J 5 cl) 0 0 � W W L) 0 z cf) 3: 0 z ' .fin. u:.r :. •; 'UNIFIED SOIL CLASSIFICATION SYSTEM Ml1'JO - "0MSIONS GROUP GROUP NAME SYMBOL CARAVEL CLEAN GW WELL GRAVEL, FINE TO COARSE GRAVEL COARSE = ..'TWW SOX OF GRAVEL GP POORLY - GRADED GRAVEL GRA INED' '` COARSE FRACTION GRAVEL WITH GM SILTY GRAVEL GC CLAYEY GRAVEL SOILS . ? RETMNECON N0.4 SIEVE FINES ° SAND CLEAN SW WELL - GRADED SAND, FINE TO COARSE SAND SP POORLY - GRADED SANG MORE T}MN 50% WRE THAN 50% OF SAND SAND WITH SM SILTY SAND RETAINED ? ON, COARSE FRACTION NO: 200 SIEVE PASSING N0.4 SIEVE FINES SC CLAYEY SANG FINE - SILT AND CLAY INORGANIC ML SILT CL CLAY GRAINED LIQUID LIMIT ORGANIC OL ORGANIC SILT, ORGANIC CLAY SOILS LESS THAN 50% MORE THAN 50% SILTY AND CLAY INORGANIC MH SILT OF HIGH PLASTICITY, ELASTIC SILT CH CLAY OF HIGH PLASTICITY, FAT CLAY PASSING ON THE LIQUID LIMIT ORGANIC OH ORGANIC SILT, ORGANIC SILT NO. 200 SIEVE 50% OR MORE HIGHLY ORGANIC SOILS PT PEAT AND OTHER HIGHLY ORGANIC SOILS NOTES: SOIL MOISTURE MODIFIERS: 1. FIELD CLASSIFICATION IS BASED ON VISUAL EXAMINATION DRY - ABSENCE OF MOISTURE, DUSTY, DRY TO OF SOIL IN GENERAL ACCORDANCE WITH ASTM D2488 -83. THE TOUCH 2. SOIL CLASSIFICATION USING LABORATORY TESTS IS BASED SLIGHTLY MOIST - TRACE MOISTURE, NOT DUSTY ON ASTM D2487 -83. MOIST - DAMP, BUT NO VISIBLE WATER 3. DESCRIPTIONS OF SOIL DENSITY OR CONSISTENCY ARE VERY MOIST - VERY DAMP, MOISTURE FELT TO THE TOUCH BASED ON INTERPRETATION OF BLOW -COUNT DATA, VISUAL WET - VISIBLE FREE WATER OR SATURATED, APPEARANCE OF SOILS, AND /OR TEST DATA. USUALLY SOIL IS OBTAINED FROM BELOW WATER TABLE LIU & ASSOCIATES INC. UNIFIED SOIL CLASSIFICATION SYSTEM Geotechnical Engineering • Engineering Geology Earth Science PLATE 3 4 = Z w oc � •J U UO N O W C0 LL WO N = W Z F— ZO �o U ON o f- Ww u O z W U= O z Z W W JU (L)o NO Cl) w w CO LL 0 U) D :- CY LLI 0 Z !_ W W 5 L) (J) 0 a �_ W W L) p L 0 z CO L) O ~ Z ..ire' Z �~ W D JU UO Cl) LL WO La N :3 = F- W Z H F- O Z I-- 25 U O� cl !- WW H� u. O Z W CO O Z ... : ....� , ti i. ��. ...f. ... .:. yt' �S,1:cS'l��l" :,T.tt,:. .",.•;il1eY' ., a NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT.. ILA . �qs 1 1 Or City of Tukwila W{ f O Department of Community Development ' 1908 September 7, 2006 Jeffrey Ek 16350 53 PI S Tukwila, WA 98188 RE: Request for Extension Development Permit No. D05 -432 Ek Residence —16227 54 Av S Steve Lancaster, Director Dear Mr Ek: This letter is in response to your written request for an extension to.Permit No. D05432. The City of . . Tukwila Building Division will be extending the expiration date of your permit for an additional 90 days (through December 14, 2006). If you should have any questions, please contact our office at (206) 431 -3670. Sincerely, File: Permit No. D05 -432 P:Vennifer\Exlension LettersTennitsOOS -432 Permit Extension 2.doc Page t of 1 jern 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 * Phone: 206 -431 -3670 • Fax. 206 - 431 -3665 Steven M. Mullet, Mayor z Z oc 2 u�D JU UO CO 0 : MW H to .u-: w O, u_ ¢ �d = w z }.. z o. W 2� Dp O �; w z CO P _ O ~: z 08 -28 -06 RECEIV i Bob Benedicto AUG 2 9 ?006 Department of Community Development oEVE TM oP 6300 Southcenter Boulevard Suite 100 MEN-r Tukwila, WA 98188 -8548 l RE: Permit No. D05 -432 da 16227 54 AV S TUKW p Dear Mr. Benedicto: I would like to request an extension of 90 days for Permit N . DOS -432. t this time, I am still working on Permit No. D05 -092 on the same site and oving on with Permit No. D05 -432 once this other one is completed. Thank you for your time and consideration in this matter. Sincerely, Jeffrey Ek z Z �W ug N; D JU 0 N 0 ` W= J cf) LL W O U- U �. d W. z 1-- w F-! �5 �o o CO. o� WW U -O 111 Z'. U N H � 0 �) ILA � wgsy : 0.1 Cit o Tukwila y f Steven M. Mullet Ma 1 , Q = , `• Department of Community Development Steve Lancaster, Director ... " 1908 Z z t — 07 -28 -2006 w' J 0 Cl) 0 JEFFREY EK to W U 16350 53 PL S TUKWILA WA 98188 N u- WO U RE: Permit No. D05 -432 U. ¢ 16227 54 AV S TUKW N CY = Dear Permit Holder: W Z H In reviewing our current records the above noted permit has not received a final inspection by the City of Tukwila Building Division. W O Per the International Building Code and/or the International Mechanical Code, every permit issued by the Building Division under the 2 W provisions of this code shall expire by limitation and become null and void if the building or work authorized by such permit is not. U 0 commenced within 180 days from the date of such permit, or if the building or work authorized by such permit is suspended or abandoned at any time after the work is commenced for a period of 180 days. WW Based on the above, you are hereby advised to: LL O Call the City of Tukwila Inspection Request Line at 206- 431 -2451 to schedule for the next or final inspection. tj j Z U =. This inspection is intended to determine if substantial work has been accomplished since issuance of the permit or last inspection; or if p the project should be considered abandoned. Z If such determination is made, the Building Code does allow the Building Official to approve one or more extensions of time for additional periods not exceeding 90 days each. Extension requests must be in writing and Provide satisfactory reasons why circumstances beyond the applicants control have prevented action from being taken. In the event you do not call for the above inspection and receive an extension prior to 09/15/2006, your permit will become null and void and any further work on the project will require a new permit and associated fees. Thank you for your cooperation in this matter. xc: Permit Fite No. D05432 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206- 431 -3670 • Fax: 206 - 431 -3665 vJILA %� z City o f Tukwila Steven M. Mullet, Mayor 0 °•�.. '= Department of Community Development Steve Lancaster, Director isoa May 16, 2006 Jeffrey Ek 16350 53 P1 S Tukwila, WA 98188 RE: Request for Extension Development Permit No. D05 -432 Ek Residence —16227 54 Av S Dear Mr Ek: This letter is in response to your written request for an extension to Permit No. D05 -432. The City of Tukwila Building Division will be extending the expiration date of your permit for an additional 90 days (through September 15, 2006). If you should have any questions, please contact our office at (206) 431 -3670. Sincerely, e n'fer Marshall Permi echnician File: Permit No. D05 -432 Z mo w. u� D JU UO, CO o - CO w w O: U- �D = �. w. Z H O z E- w w U0 O - 0 H` W w' z H U- O w z U CO) O Z P:Vennifer\Extension LettersTeniAAD05432 Permit Extension.doc Page 1 of l jem 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 * Phone: 206 - 431 -3670 • Fax. 206 - 431 -3665 1 f i 05 -08 -2006 Bob Benedicto Department of Community Development 6300 Southcenter Boulevard Suite 100 Tukwila, WA 98188 -8548 RE: Permit No. D05 -432 16227 54 AV S TUKW REc 'eiv 14A Y o 0 ?006 ��FLOP� Dear Mr. Benedicto: I would like to request an extension of 90 days for Permit No. D05 -432. At this time, I am still working on Permit No. D05 -092 on the same site and will be moving on with Permit No. D05 -432 once this other one is completed. Thank you for your time and consideration in this matter. Sincerely, {L Jeffrey Ek h/is�2cr�G *(f t crel $,cr c Oq l z Z D: W u� D' U CO) 0. W = J � w O: �Q �a z �.. F - O z �. 5 U� O CO = U' LLi O` . U CO: O ~_ Z old 1908 05 -01 -2006 w �2 s City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director JEFFREY EK 16350 53 PL S TUKWILA WA 98188 RE: Permit No. D05432 16227 54 AV S TUKW Dear Permit Holder: In reviewing our current records the above noted permit has not received a final inspection by the City of Tukwila Building Division. Per the International Building Code and/or the International Mechanical Code, every permit issued by the Building Division under the provisions of this code shall expire by limitation and become null and void if the building or work authorized by such permit is not commenced within 180 days from the date of such permit, or if the building or work authorized by such permit is suspended or abandoned at any time after the work is commenced for a period of 180 days. Based on the above, you are hereby advised to: Call the City of Tukwila Inspection Request Line at 206 - 431 -2451 to schedule for the next or final inspection. This inspection is intended to determine if substantial work has been accomplished since issuance of the permit or last inspection; or if the project should be considered abandoned. If such determination is made, the Building Code does allow the Building Official to approve one or more extensions of time for additional periods not exceeding 90 days each. Extension requests must be in writing and Provide satisfactory reasons why circumstances beyond the applicants control have prevented action from being taken. In the event you do not call for the above inspection and receive an extension prior to 06/17/2006, your permit will become null and void and any further work on the project will require a new permit and associated fees. Thank you for your cooperation in this matter. Sincerely, t 2ei aarshal1, Permit Technician xc: Permit File No. D05432 Z �z W JU 0 cf) J H N .L WO L L cl) = f3. F.. W Z H F— O: Z F— W �p U ON o�- W W H H -O .•Z w O Z 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 * Phone: 206.431 -3670 e Fax: 206 -431 -3665 i PERMIT CQQRD COPY PLAN REVIEW /ROUTING SLIP ACTIVITY NUMBER: D05 -432 PROJECT NAME: EK RESIDENCE SITE ADDRESS: 16227 54 AV DATE: 12 -02 -05 X Original Plan Submittal Response to Correction Letter # Response to Incomplete Letter # Revision # After Permit Issued DEPARTMENTS l i� w � Bung A vision P ic Works M d M6 Irv► Fire Prevention Structural ❑ .AIM M4- 12 -��- -o Planning Division Permit Coordinator ❑ DETERMINATION OF COMPLETENESS (Tues., Thurs.) DUE DATE: 1 2-06 -05 Complete Incomplete ❑ Not Applicable ❑ Comments: Permit Center Use Only INCOMPLETE LETTER MAILED: LETTER OF COMPLETENESS MAILED: Departments determined incomplete: Bldg ❑ Fire ❑ Ping ❑ PW ❑ Staff Initials: TUES/THURS ROU ING: Please Route Structural Review Required REVIEWER'S INITIALS: ❑ No further Review Required ❑ DATE: APPROVALS OR CORRECTIONS Approved ❑ Approved with Conditions Notation: REVIEWER'S INITIALS: DUE DATE: 01-03 -06 Not Approved (attach comments) ❑ DATE: Permit Center Use Only CORRECTION LETTER MAILED: Departments issued corrections: Bldg ❑ Fire ❑ Ping ❑ PW ❑ Staff Initials: Documents/routing slip.doc 2 -2M2 z z �w �U UO Nc C0 LLI J H CO u.. w LLQ cl)0 zF- Zo W w U� ON o�- W LL .z w U= O z Rp J AFFIDAVIT IN LIEU OF CONTRACTOR REGISTRATION PERMIT NO.: -. STATE OF WASHINGTON) ) ss. COUNTY OF KING ) print] states as follows: 1. I have made application for a building permit from the City of Tukwila, Washington. 2. 1 understand that state law requires that all building construction contractors be registered with the State of Washington. The exceptions to this requirement are stated under Section 18.27.090 of the Revised Code of Washington, a copy of which is printed on the reverse side of this Affidavit. I have read or am familiar with RCW 18.27.090. 3. 1 understand that prior to issuance of a building permit for work which is to be done by any contractor, the City of Tukwila must verify either that the contractor is registered by the State of Washington, or that one of the exemptions stated under RCW 18.27.090 applies. 4. In order to provide verification to the City of Tukwila of my compliance with this requirement, I hereby attest that after reading the exemptions from the registration re uirement of RCW 18.27.090, 1 consider the work authorized under this building permit to be exempt under No. ? 7 , and will therefore not be performed by a registered contractor. I understand that I may be waiving certain rights that I might otherwise have under state law in any decision to engage an unregistered contractor to perform construction work. APPLICANT Permit Center /Building Division: 206 -431 -3670 Public Works Department: 206 - 433 -0179 Planning Division: 206 -431 -3670 Signed and sworn to before me this NfA day of 11 c;ember , 20 10- 6 . A• • o NOTA/� 9N;: 1. �... 1. i (P '• p UBLIG 010 111.9�� . 16.08•••• = OF WAS\A% \applications\8 -2004 affidavit in lieu of contractor registration CITY OF TUKWILA Community Development Department Permit Center 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 ou� a - �� NOTARY PUBLIC in and for State of Washington, Residing at //-) A , County. A Name as commissioned: Al1�e / �. Dea(f v My commission expires: 6- 16-09 Z z �w u� D U (/) J = F•- LL WO J LL j = w z� !— O zH W W U ON o r- W W H� LL O w z 5 O� Z I 18.27.090 Exemptions. This chapter shall not apply to: 1. 2. An authorized representative of the United States Government, the State of Washington, or any incorporated city, town, county, township, irrigation district, reclamation district or other municipal or political corporation or subdivision of this state; 3. Officers of the court when they are acting within the scope of their office; 4. Public utilities operating under the regulations of the utilities and transportation commission in construction, maintenance, or development work incidental to their own business; contracts of amounts less than $500.00 for the purpose of the evasion of this chapter or otherwise. The exemption prescribed in this subsection does not apply to a person who advertises or puts out any sign or card or other device which might indicate to the public that he is a contractor, or that he is qualified to engage in the business of contractor; 11. Any construction or operation incidental to the construction and repair of irrigation and drainage ditches of regularly constituted irrigation districts or reclamation districts; or to farming, dairying, agriculture, viticulture, horticulture, or stock or poultry raising; or to clearing or other work upon land in rural districts for fire prevention purposes; except then any of the above work is performed by a registered contractor; 5. Any construction, repair or operation incidental to the discovering or producing of petroleum or gas, or the drilling, testing, abandoning, or other operation of any petroleum or gas well or any surface or underground mine or mineral deposit when performed by an owner or lessee; 6. The sale or installation of any finished products, materials, or articles of merchandise which are not actually fabricated into and do not become a permanent fixed part of the structure; 7. Any construction, alteration, improvement or repair of personal property, except this chapter .shall apply to all mobile, manufactured housing. A mobile /manufactured home may be installed, set up, or repaired by the registered or legal owner, by a contractor licensed under this chapter, or by a mobile /manufactured home retail dealer or manufacturer licensed under chapter 46.70 RCW; 8. Any construction, alteration, improvement, or repair carried on within the limits and boundaries of any site or reservation under the legal jurisdiction of the federal government; 9. Any person who only furnished materials, supplies, or equipment without fabricating them into, or consuming them in the performance of, the work of the contractor; 10. Any work or operation on one undertaking or project by one or more contractors, the aggregate contract price of which for labor and materials and all other items is less than $500.00, such work, or operations being considered as of a casual, minor, or inconsequential nature. The exemption prescribed in this subsection does not apply in all instance wherein the work or construction is only a part of a larger or major operation, whether undertaken by the same or a different contractor, or in which a division of the operation is made into lapplicationsl8 -2004 affidavit in lieu of contractor registration 12. An owner who contracts for a project with a registered owner; 13. Any person working on his own property, whether occupied by him or not, and any person working on his residence, whether owned by him or not but his exemption shall not apply to any person otherwise covered by this chapter who constructs an improvement on his own property with the intention and for the purpose of selling the improved property; 14. Owners of commercial properties who use their own employees to do maintenance, repair, and alteration work in or upon their own properties; 15. A licensed architect or civil or professional engineer acting solely in his professional capacity, an electrician licensed under the laws of the state of Washington, or a plumber licensed under the laws of the state of Washington while operating within the boundaries of such political subdivision. The exemption provided in this subsection is applicable only when the licensee is operating within the scope of his license; 16. Any person who engages in the activities herein regulated as an employee of a registered contractor with wages as his sole compensation; 17. Contractors on highway projects who have been prequalified.as required by chapter 13 of the Laws of 1961, RCW 47.28.070 with the department of transportation to perform highway construction, reconstruction, or maintenance work. Z }�— Z �w �U UO rn o J = F- �w w U-Q co D = a �.w Z F- O Z~ W U� O� o F— wW F— ti O Z UN - F_ O� Z DAILY FIELD REPORT Pe 4- -l 0 1 43 Tukwila Permit No. D05 -432 LIU & ASSOCIATES, INC. J ob No. 5A053 Field Rep. JW Page 1 of 1 Report No. 1 GcotRl nical Liig'inccring, Engineering Geology R I-arth'5cience Miles Time On Site Date Day of Week 48 3:10 PM 9/11/2006 Mon. 19213 Kerslake Place NE Travel Time (Hrs) Time Off Site Weather Kenmore, Washington 98028 1.25 3:45 PM Sunn Phone: (425) 483 -9134 Fax: (425) 486 -2746 Vehicle Hrs on Site Hrs Charged Visitors 1.75 P roject Job Location Client Precast Concrete Block Walls 16227 - 54th Avenue South, Tukwila, WA Jeffrey Ek General Contractor General Contractor Supt. Report Checked By Jeffrey Ek Jeffrey Ek Piling Contractor Piling Contractor Supt. T.W.F. Construction Wayne Fortenber At the request of Jeffrey Ek, I visit the site to inspect the installation of precast concrete block walls located a short distance to the proposed single - family residential building currently under construction. During my site visit, the contractor has completed the placement of a 4 -inch- diameter, perforated, drain pipe sleeved with a layer of filter fabric which is surrounded by washed pea gravel. The gravel is enveloped by another layer of filter fabric, and will be overlain to the finish grade by at least 18- inch -wide clean crushed rock. A city inspector has inspected this wall subdrain system and approved the installation. Due to the space constrain and dominate presence of dense to very -dense native glacial till, the - _ .. - - - - --------------- placement of geogrids as recommended is practically unfeasible. Alternatively, we recommend the _ 2.75 -inch outside diameter steel pipe (schedule structural) with an embedment of at least 4 feet or to a refusal depth into very-dense glacial till bored by a portable drilling rig. The embedded portion of the pipe is encased in structural concrete poured in a bored hole. Every two pipes have a spacing of 4 feet on cente These pipe ar e installed to interlock geogrids and provide friction resistance in addi tion what is a lread y - generated by the interlocking force between cru shed rock and geogrids. Based on my observations, it is my opinion that the installation of pipes is appropriate and acceptable for achieving the design purposes. r. �T _ c _ _— -------- - - - - -- - - -- - - -- pis �, _ _ _ _ -- ��, �.' ', 2006 q i1 2006_ BUILDING E�PRES IPJN/ v � 06 Ow O: E] Continued 1) Jeffrey Ek 2) City of Tukwila on Next 3 Page r,�;, •: �; f�.;.': a. �Gi'. S}; ilE+. u+;::: �!: 1: rilii 'F:{�G::idv,ulwiaC6S&St:.fr.'. �'1�nd�Witl4tatC.V3m4�+rt�iI z }�- Z �w 00 U) 0 J � 0U- W J u- Q s �w z t- OR 2 U ON off wW LLO z 0- 0 O F- z r File: D05 -0432 35mm Drawing #1 -3 . ........... �0 U3 b xcrieg.Ry AL-P- _ 0 _0 m __A z . _r­a. C= � m i C=30 M c_" m C7 0 r - C-,-) o c> - nc) N3 _m C < O AJ 0 m 0c) C -- .---- ......... _.. _. ___ - - -- - -- - --- - -- - - - -- - - - - - -� a_.i �o rn AV,6::' I &ASSOCIATES, INC. SITE AND EXPLORATION LOCATION PLAN SINGLE-FAMILY RESIDENCE 16227 - 54TH AVENUE SOUTH rl IL-'%Alll A %AlAC%LJlKlf I s w 53 cr) C'3 Lr . ........... �0 U3 b xcrieg.Ry AL-P- _ 0 _0 m __A z . _r­a. C= � m i C=30 M c_" m C7 0 r - C-,-) o c> - nc) N3 _m C < O AJ 0 m 0c) C -- .---- ......... _.. _. ___ - - -- - -- - --- - -- - - - -- - - - - - -� a_.i �o rn AV,6::' I &ASSOCIATES, INC. SITE AND EXPLORATION LOCATION PLAN SINGLE-FAMILY RESIDENCE 16227 - 54TH AVENUE SOUTH rl IL-'%Alll A %AlAC%LJlKlf I s w 53 F Ss, 0 A- i� —rte , ► LAYOUT PLAN GENERAL NOTES 1. Construction of concrete block walls should proceed immediately after excavation for keyway trenches is completed. 2. The base - course blocks should be set on a 6- inch -min rock base over firm bearing soils. The rock base should consist of 7/8 -inch crushed rock compacted to a non - yielding state with a vibratory compactor. 3. A 4- inch - minimum, perforated, PVC drain pipe wrapped in non -woven filter fabric should be placed along the base of each wall segment. Water in the drain lines should be tightlined to discharge into a storm sewer. 4. The concrete block walls should be backfilled to finish grade with clean, free - draining, granular, structural fill, containing no more than 5% by weight finer than the No. 200 sieve based on the fraction of the material passing No. 4 sieve, and with individual particles not larger than four inches. Structural fill should be placed in lifts no more than 10 inches thick in loose state, with each lift compacted to at least 90% of the maximum dry density determined by ASTM D1557 (Modified Proctor method),as each course of blocks is completed. 5. Geogrid mesh should be securely anchored between concrete blocks, laid flat over level surface of backfill, stretched tight and staked down before placing the next lift of backfill. Overlap of geogrid mesh in the direction perpendicular to the wall alignments should not be allowed. Overlaps in the direction parallel to the wall alignments should be at least 12 inches. loEC Ot 110 Q�Tl�t RECEIVED CITY OF TUKWILA DEC 0 2 2005 PERMIT CENTER l �I�I�I�lililil� Illlljl IIII112l 3I _.i_I�Iji� ---III Ijl ICI Ill 111 llj l I III .III 1 I I I I I I 4 Inch 1/16 I I 5I I 1 6 II IIII�IIIIIIIII�IIIIIIIII�IIIIIIIII 'IIIIIIIII�ILIJ IIIII�IIILIIIII�IIIIIIIII�lllllllll�lllllllll�h y � ` z � w � 111 I 111111 I Illllllllllllllllillllll�llllllllllllllllil '�° `' . .;: •Y10S J J Q U O m H Uj Z O U U) Q W CL U W 0 co W _J LL J Z V . ON* w O H W I- J Q_ I— z o pO W Z Z = W Q FW o 2 L0 Y N Lr) � ~ L0 O M O U C D U C0 s W m 0 0 W C W U L U N O N ti� F" TI -1a.�1 2 % N : ! v Co 6ek c H, 6UT t�OT /� Ew ST. ' f Co t COHrAc ,�K61%oO �u�6 9;' Y. IS WxI Z o,T- H 5' ,of � O ,, o I 0,75 N2 , E*u7" ' ' h . ° oT e sS THAtA S. 1 0 a , G rgjJLTUftA L FILL (T`(P ) , o ' &UT , r NOT �.�ES TNp. 3.5 G� ,�.29' • a ,� � • � � �. C�✓-rRA-raG�i`A ton . o . • r D . l �� R� 1 ..i•w i o o ' p "" ate • v F-I D I S NOT ' r Vi •' �'' � � V u v AL 6 u7 � Q 1 ' REVIEWED FOR CODE COMPLIANCE 6000 ICID DEC 1 2005 Qty Of Tukwila UTLDTNr nT� /T';Tm • �, 4 'PeKF-. PVC PI Pe, � �r (A,h lower CL L POIAI P"ped� , �7, J 4,1 � w f�D E �Eo�RI� M�,N tJoT o f -y�8�� G�(JSFIGC F� c O�Z 1"�2 Lf' � 1"tI�I. R oc.K �ASG T1( P l C,A% L Z -- - > e,6 T t o t4 RECEIVED CITY OF TUKWILA DEC 0 2 2005 PERMIT CENTER Inch 1/ _.._._., -- _----- _�.._- -_ ____-- . - -. -- 1Itlllllllllll�2llllll�lllllll Illll�llill_�III Ilill�l III III III III III .III ,6 ll 3I 4I I I 5I I I I 6� .l�r�•llA� �.. fit.. IllillllllllllllLIII I I I I I I II s y � �, E�, z � w� IIILIIIILIILIIL�IIIIIIIIIIIIII�IIIIIIIIIIIIIII � , . I Illlhllllillili IIIIIIIIIIIIIIIIIilllllllll�lllllllll I I IIII 0 J J Y U O U w p D 00 z W Q J o U) � W Z co r U Q Q O U � W ~ Lo U N c o W a_ �- c o W 0 a) U C a) U V W n W O EEO ° a� V LU Q C W v 1 L C W U U 0 1 l�zR�oS