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20000763.pdfDATE RECEIVED CITY OF EDMONDS CONSTRUCTION PERMIT APPLICATION IER NAMEINAME OF BUSINESS IND ADDRESS 5r ZIP I TELEPHONE ADDRESS -710 7 -,7 /4�0 5 CITY "P ITELIPH NE (nz�y_c PIA-17m NAME ADDRESS :Z%97 CITY ZIP I TELEPHONE LICENSE ioyz NEW RESIDENTIAL PLUMBING I VIEC. ADDITION COMMERCIAL COMPLIANCE OR CHANGE OF USE REMODEL APARTMENT F] SIGN REPAIR YGE 0 IENCE X FT) DEMOLISH TANK C) OTHER GARAGE CARPORT rl RETAINING WALL RENEWAL (TYPE OF USE, BUSINESS NUMBER NUMBER OF DWELLING OF STORIES I UNITS DESCRIBE WORK TO BE DONE [PERMIT EXPIRES U SE 3�6 ONE PERMIT -3 NUMBER JOB ELI ADDRESS ;76 P- Iltr- r PLAT NAMEISUB011WON NO IID NO.?",7 ,5, q, LOT NO. LID FEE S W­,�p P ....... 1j. PUBLIC RIGHT OFWAY PER.11rIA,, R p. EXISTING - PRO .S G� REQUIRED DEDICATION- IT - LINE E' IIINIARI(S OWNERICONTRACTOR RESPONSIBLE FOR EROSION CONTROUDRAINAGE 5- FIRE REVIEWED By DATE VARIANCE OR CU SHORELINE OR ADB� INSPEC�ION RE G SO I PO�NTED YESQ b(NO _____�EFA -REVIEW �SIGN4�EA HEIGHT COMPLETE EXEMPT ALLOWED PROPOSED ALLOWED PROF ED -�p I I LOT COVERAGE REQUIRED SETBACKS (FT.) SETBACKS (FT.) ALLOWED PROPOSED FRONT SIDE REAR POPOSED PONT UPSIDE REAR _16% 15% 1 2_15 1 401 29 '25 1 2-5,112-04 PARKING I LOT AREA DATE PM REQ'G I PROVIDED I / 9 CHECKED By YPE OF C NI.;VC ION C#�E_ 1 0 CUHNNT GROUP I W7f�-U ---I C�CACDUPANT A SPECIALINgYTEOR JAR�,,6 FE.0 ED B C2, IL REMA KS DRnrRESS INSPECTIONS PER UBC 1081FINAL INSPECTII VALUATION FEE I (R, (a PLAN CHECK FEE C E LOTSLO BUILDING 5,�X ocy QtS5 I V".1 PLAN CHECK NO: ESTED DATE PLUMBING or :359 MECHANICAL THIS PERMIT AUTHORI�ES ONLY THE WORK NOTED. THIS PERMIT COVERS WORK TO BE .11E ON PRIVATE PROPER I ..- Ally CONSTRUCTION ON THE PUBLIC GRADING/FILL DOMAIN 'CU..B,.,.EWAI.KS,T U DRIVEWAYS, MARQUEES, ETC.1 WILL REQ [RE SEPARATE PERMISSION. STATE SURCHARGE PERM ITAPPLICATI N: 18DIDAYS PERM' PERMIT LIMIT: 1 YEAR - PROVIDED WORK 15 STARTED WITHIN IBODAYS EA ENG REVIEW FEES SEE BACK OF PINK PERMIT FOR MORE INFORMATION P -A PLICANT. ON BEHALF OF HIS OR HER SPOUSE. HEIRS. ASSIGNS AND SUCCESORS PPL ENG. INSPECTION FEE ------------ IN INTEREST AGREES TO INDEMNIFY. DEFEND AND HOLD HARMLESS THE CITY F F M FROM I EDMONDS, WASHINGTON. ITS OFFICIALS. EMPLOYEES, AND AGENTS ANYAND ALLCLAIMS FOR DAMAGESOIWHATEIER NATURE. ARISING DIREC r LYORINDIR15CILY OF THIS PERMIT. ISSUANCE OF THIS PERMIT S.ALL NOT .5 DEPOSIT RECEII FROM THE ISSUANCE DEENEDTo MODIFY. WAIVE OR REDUCE ANY REOUIREMENT OF ANY CITY ORDINANCE Y WAIVE 01 PLAN q9lCK OR LIMIT IN ANY WAYTHE CITY'S ABILITY TO ENFORCE ANY ORDINANCE PROVISION.' No RECE TOTAL AMOUNT DUE IHEREB ACKNOWLEDGE THAT I HAVE READ THIS APPLICATION! THAT THE INFORMATION APPLICATION APPROVAL GIVEN IS CORRECT. AND THAT I AM THE OWNER. OR THE DULY AUTH.RIZEO AGENT OF I- �� - . -A -I'l �,­ �, - THE OWNER. I AGREE TO COMPLY WITH CITY AND STATE LAWS REGULATING CONSTRUC BE CALL .-I, - F­ - P,,.d...d TION: AND IN DOING THE WORK AUTHORIZED THEREBY. NO PERSON WILL EMPLOYED CODE OF THE STATE OF WASHINGTON RE LATING TO FOR INSPECTION SpIll pl.vld,d I N VIOLATION OF THE LABOR woRKMEN'S COMPENSATION INSURANCE AND RCW 18.27. OFFIC LSS%NATURE DATE SIG A7 N (425) 771-0220 L ASEDBY DATE ATTEIWON EXT 333 1p IT IS UNLAWFUL TO USE OR OCCUPY A BUILDING OR STRUCTURE UNTIL 771-0221 If A FINAL INSPECTION HAS BEEN MADE AND APPROVAL OR A CERTIFI- ORIGINAL FILE, YELLOW INSPECT R/ CATE OF OCCUPANCY HAS BEEN GRANTED. UBC SECTION 109 FAX PINK OWNE GOLD - ASSESSOR �198 z m a rn c 0 m 0 -1 C) 0 C:: -4 m x rn M z r- -4 co o -n n m M 0- 00, 0 c m C . I .0 z z -4 cl) z 0 1 0 IT, 5"jCMf' 99.0% w/ :115 F-VEL F-NO From! vgq4*?�V% a3 #1, TYFE I uf, KUN PFF 5,1z' f-.' GE 249.60 IF- 24ro.roo IE 246.6 E) % TAR IF- 246 0 '040 RO SED z, IDE 10, 2 - .1 - 475 .50' 199.27 Ln 126- PLOT PLAN, SCALE: 1" 20' DRAINAGE PLAN AUG 18 2000 APPROVED OF K sp. (3 Tva 2 - A 71 '02 M M 00 M Ez 0 -n m T 010 Cc: Fn C04 Z ro -4 Z� z 0 g 0 M — ----------- 10 tHEb-OCUMENT'IN THIS MAME is L:ESg'6LE;kFzTHM TkS NOTICE NOTICE: OCUMENT. IT IS DUE TO THE QUAUTY OF THE D .oz = A:]lVDs NVId SIOVNIVNG N NVJd 10 d Li r�� ro To 119 Izz 'P QD G) -bs 89-lzz,'l 101 22 71 J. au AHN J0191=10 ja s' ausoOH'Id CD C) C) N 41 7M7, cb) C� N to N ro r\) M (31 0 .xl i.t fOrj -10 X.w" . 0� 0 i NVIdLLdVJ,:)UNV I 70's ------ ILVANJ) V 1,961 a 0 Oz=j. OZ_'A 00 Z= Z if le, --- ------- / --------------- 9 low 1 -00. eqvo 11 -mr! O.al"19 ---------------------------- — -------- 00091 m a IN I . Dennis M. Bruce, P.E. M.&C.E., M.B.A. Geotachnical/ Civil Engineer January 3, 2001 RECEIVED City of Edmonds JAN 17 2001 c/o Michol Construction, Inc. DEVELOPMENT SERVICES CTA 7907 - 212th Street S.W. #102 CITY OF EDMOND� Edmonds;, WA 98026 Subject: GeotechnIcal Inspections 17409, 17407, 17405 - 76th Avenue W., Edmonds Short Plat No. S-98-121 This; engineering report presents the results of geotechnical inspections to date for the three new single family residences constructed on Lots 2, 3 and 4 at 17409. 17407, 17405 - 76th Avenue West, Edmonds, Washington, by Michel Construction. BEfJJU'- N Q E S. City of Edmonds approved project plans Gcotechnical evaluaUon report by 0. Bruce, P.E., dated September 11, 2DOO 1NUy&Tl0N!jM This engineer has performed on -site geotechnical inspections throughout October, November and December of 2000 (see photographs). The eastern most lot (Lot No. 4, 17405 - 76th Avenue W), encountered ground water seepage upon site excavation in early October. This engineer worked with project contractor to install a perimeter Intercept draln (see photos). Storm warter was collected and diverted around the south property line, and discharged Into the existing City of Edmonds storm water System. Foundation subgrade soils were verified to meet 2,000 p.s.f. bearing capacity, as anticipated by the geotechnical report. Site "workability' required contractor to import large crushed rock as an improved working surface. The effective use of the subgrade rock, the intercept perimeter drain system, and relatively good weather allowed the foundation work to proceed successfully. Foundation tooting formwork, reinforcing steel, and concrete were placed properly for the foundation for the residence on Lot No. 4. SOILS - FOUNDATIONS - SITE DEVELOPMENT - INSPECTION - DRAINAGE - DESIGN A PERMIT - LEGAL P.0 Box 55502 - Shoreline, Washington 98156 - (206) 54&9217 - FAX 546-8442 I F� 0 4� M 0 M C m 0 80 a M JD > 01 m rn 0 0 Fn c: (a 171 0 z Z 0 m 01/17/2oei ie:34 425776�UHb MiUHtL UUN.1 Michel Construction, 17405, 17407, 17409 -76th Avenue W Page two RECEfV, JAN 1 7 2001 DEVELOPMENT SERVICES CTR. CITY OF EDMONDS Lot No. 3 (17407 - 76th Ave W) also encountered ground water seepage, although not as significant as Lot No. 4. Additional perimeter drains were utilized to control groundwater seepage, As with Lot No. 4, Imported heavy crushed rock was placed on foundation subgrade to improve overall workability, Foundation formwork, reinforcing steel and concrete were placed in accordance with City of Edmonds approved project plans. Lot No. 2 (17409 - 76th Ave W) did not encounter any significant ground water seepage, A small amount of crushed rock was imported to improve site workability. Foundation formwork, reinforcing steel and concrete were properly placed in accordance with City of Edmonds approved project plans. Overall site siltation control and erosion protection are well maintained. Contractor effectively has installed and maintains siltation fencing and straw bales, The up slope (easterly) drainage system continues to off actively control seepage water. This engineer to continue to monitor and provide on -site geotachnical Inspectiolls. Site work, foundation preparation, and foundation installation have been inE,pected and are geolechnically approved. Ths engineer to continue to monitor si to geotechniCal work. If there are any questions, do not hesitate to call. DMB:vlb 1EXP"* IRE= Dennis M. Bruce. P.E. Geotechnical / Civil Engineer Z 0 M 0�- 0' 0 x M. mz� C 2 5 10 i M M 0 0 0 Fn. Z Z 0 0 ...... M ...... Vdt 4 . , 0 Project ReView Checklist z:1 ProjectName: Oc-c- 4.q Plan Check#: _7(Q e � f ( _( Project Address: S�IJ Receipt Date: Un derground Wiring Required Hydraulics Permit Plat/Subdivision Requirements Street Dedications. Easements - Public/Private Storm Drain Review Feel Engineering Fee 460 Engineering 2.2 Inspection POR4 1 8 4?0 ,-Drainage Plan (On-sitg) Line k 61, Setback. - Storm Drain Open Ditch - Existing Culvert Required� Culvert ize -Shoul Drainage/Shale Open Runoff der Catch Basin Required All X- IFF-(2/ Driveway Slope & Vehicle Access Sidewalk Required AAP Curb & Gutter Required Curb Cut forbriveway Required Street Pa ving Required Rig . ht-of-Way Consim ction Permit Required Aic, Bond Required for Public Improvements FEMA Map Check/Water Table Side� Sewer Availability V4.i Z117 Ile Calculate Sewer Fee if No LID# Water Meter Size water Meter Charge Required Hydrant Required Street Cut AM Miscellaneous RW Permit # Date Issued — Receipt # —01 Receipt # SS Permit Q Date Issued M eter Size Paid S Date Receipt # z 0 C: M rn 0 0 80 C: --I K :r M M Z ,0­1 C: o -n n -4 x M M 0 Fn 0 0 'M C Cn k C2 M z z -4 M CD z 9 0 M Height Calculation Worksheet Address. 'i Date: '7 - 1-7- J Inspector(s): 1. Datum Point: C tf Z" 2, Datum Point Elevation: 7 3. Average Grade:� LI - d -S 4. Maximum Elevation Allowed: (average grade) + 25'= M M 0, -40 0 C 5. Reference Point Elevation Shot to House: rn M, 2,1-,2�datflm elevation) +d �)A� ((grade to transit level fine sho t to house) Z, 6. Measurements from line shot onto house to roof ridge: MO --7. S M m, Oy 0 m C 0,1 K m z Z, 0, Total m 1 elevation) 7. Actual Elevation: '(reference point (measurements (.0 Ob from #6) Conclusion: U-�b (actual) is greater /(fft—I-ffiajti t�(allo-ed); therefore the house is/ is not over the height requiremenTlferECDC 16.20.30 requirements FINAL PROJECT APPROVAL FORM TO: DATE: MEMO TO: PERMIT COORDINATOR, BUILDING DIVISION FROM: FIR DEPARTMENT DATE --ENGINEERING DIVISION DATE —2L& , F--T— PLANNING DIVISION DATE PROJECT srrE ADDRESS 1-7 5 -7 6�k OAj PERmrr# A000-- oJJ.3—ADB# —DATEINSPECTED DESCRIPTION OF WORK TO BE INSPECTED F (Ylaj. A field inspection was conducted to determine final compliance with approved plans. Final approval denotes that there are no objections from the above signed Department to the release of PERFORMANCE BONDS and the granting of: �GLNT FINAL PROJECT APPROVAL GRANT PROJECT APPROVAL WITH CONDITIONS NOTED u Copy of CONDITIONS given to owner/contractor by inspector FAILED FINAL INSPECTION - OUTSTANDING ISSUES c3 Copy of CORRECTION NOTICE given to owner/contractor by inspector 2. 3. RE -INSPECTED OUTSTANDING ISSUES - GRANT FINAL PROJECT APPROVAL Date Si ocaprvl.doc.l:temp:bldg:fomisIO/OI z 0 i 0 M M rn -10 00 C: M M Z 0 C > 0 -n n M M 0 0 0 M C u) 9 U) M 0 z ch z 0 i 0 M FROM D.Bruce, P.E. Engineer PHONE NO. 206 546 8442 Jul. 29 2002 il:39RM Pl Dennis M. Bruce, P.E. M.S.C.E., M.B.A. Geotachnical /Civil Enginee—r July 27, 2002 LE ; "" "l, L-) AIL 2 9 2002 City.of Edmonds PERMIT COUNTER clo Michel Construction, Inc. 7907 212'n St. S.W., #102 Edmonds, WA 98026 Gubject: V- F uport / Geolechmeal inspections C!V 7407,17409 76th Ave. W., Edmonds, Washington Short Plat No. S-98-121 This engineering report presents the final results of geotechnical inspections for the three single-family residences constructed on Lot Nos. 2, 3, and 4 (17409, 17407, 17405 �6h Ave. W.). REFERENCES: • City of Edmonds approved Project Plans • Geotechnical Report by D. Bruce, P.E., dated September 11, 2000 • Inspection Report by D. Bruce, P.E. dated January 3, 2001 • Photographs INSPECTIONS I FINAL: This engineer has performed on -site geotechnical Inspections for the three new single-family residences constructed at the addresses above. As previously stated in the January 3, 2001 Inspection Report, foundation work, site clearing, soil bearing veriffication, drainage work, sub -grade preparation, and residence foundations have been inspected, verified and approved. Throughout 2001 and 2002 (to date), site work has consisted of residence construction with minor grading and drainage efforts. This engineer has inspected footing sub -grade drains, yard intercept drains, slope preparation, rockeries and final grading. SOILS - FOUNDATIONS - SITE DEVELOPMENT - INSPECTION - DRAINAGE - DESIGN& PERMIT - LEGAL P,C. Box 55W2 - Shoreline, Washington 98155 - (206) 546-9217 - FAX 546-8442 rrt� =I w Cal 0 'n;' I.. mm- 0 Z M FROM D. Bruce, P.E. Engir,eer City of Edmonds clo Michel Construction, Inc. July 27, 2002 Page 2 PHONE NO. 206 546 8442 Jul. 29 2ee2 11:40AII P2 All rockedes have been inspected by this engineer: base course rock properly embedded in the dense, native, sub -grade soils, rock linkage, rock batter, rock chinking and drainage zones have been inspected and comply to ARC Standards. Rockeries are geotechnically approved. All sub -grade drainage and gutter downspout drainage have been properly "tied In" to the approved storm drainage system. CITY OF EDMONDS INSPECTION ITEMS: 1) Erosion Control, Excavation and ShQdng: All properly completed and gootechnically approved (see January 3. 2001 Inspection Report). 2) Placement of Fill and Comnaction: As discussed in the January 3, 2001 Report, structural rock was imported under this engineer's on -site inspections to create an improved working surface. All imported fill material is geotechnically approved. 3) Soil Bearing Capacity: This engineer verified soil bearing capacity to meet a minimum of 2,000 p.s.f. 4) Sub -surface Drainage : This engineer inspected, photographed and verified the proper installation of sub -surface drainage (footing drains, tight line connections, etc.) into the City of Edmonds approved storm water system. Drainage approved. 5) Site Monitoring During Wet Weather: This engineer provided on -site inspections during periods of rainy weather (including recommendations to cease work, which was complied with). All work performed in accordance with City of Edmonds approved Plans and normal, good geotechnical practices. COL4CLUSIONS: • All special geotechnical inspection aspects have been properly completed and are approved. • Final erosion control measures (landscaping, grading, rockeries) have been properly completed and are geotechnically approved. L Z! 9'� 0; M; a M M 0 M" M K, C Zi 0 -n XM � 0 oFn' C M Z� Z, M FROM D.Bruce, P.E. Engine— PHON� NO..'.,2p6 546 8442 Sul. 29 2602 il:40AM P3— Citv of Edmonds ZI O� % m c i M 0 C M M Z, Z, C: M M '.03 C: cn� M z C* Z, M" T -1/ Dennis M. Bruce, P.E. Geotechnical /Civil Engineer M.S.C.E., B.A. September 11, 2000 1 VE:r) SEP 13 2000 DEVELOPMENT SEFIVICES CTR. CITY OF EDMONDS Mr. Rob Michel Michel Construction, Inc. 7907 - 212th Street S.W. #102 Edmonds, Washington 98026 Lots 2, 3, and 4 Subject: Geotechnical Evaluation 17409, 17407, 17405 - 76th Avenue West, Edmonds S-98-121 This engineering report presents the results of a geotechnical evaluation of the property at 17409, 17407 and 17405 - 76th Avenue West, Edmonds, Washington. This evaluation was necessitated by City of Edmonds requirements. R E F F= REND-95! Vicinity Map (figure 1) Site If drainage plan by John Mellor, P.E., approved by City of Edmonds Engineer March 9, 2000 (copy in city file) Geotechnical engineering report and steep slope evaluation by Nelson Couvrette & Assoc., dated March 14, 1995 (copy in city file) Site photographs (available) BACK ROUND: It is understood that Lots 2, 3, and 4 are part of an overall parcel containing Lot No. 1 with existing residence, and Lots 2, 3, and 4 (see site map). This investigation es. It is understood deals with Lots 2, 3, and 4 with regard to geotechnical slope issu that property owner wishes to construct single family residences on each of Lots 2, 3, and 4. No development or construction has occurred on the lots to date. Lots 2 and 3 gently slope to the west. Lot 4 contains a "flatter" portion, as well as a more steeply sloped rear (easterly portion). Lots 2 and 3, and the flatter portion of Lot 4 are densely vegetated with shrubs, bushes and trees (see photographs). The steeper (easterly) portion of Lot 4 contains mature trees and shrubs. SOILS . FOUNDATIONS - SITE DEVELOPMENT . INSPECTION - DRAINAGE . DESIGN & PERMIT - LEGAL P.O. BOX 55502 - Shoreline, Washington 98155 - (206) 54&9217 - FAX 546-8442 el Z11 0 -n rn, M 0- M, M C —Z o -n n rn rn C) 0 o Fn: C Cn! C (A: M 0 Z z z rn, Michel Construction Page two ASSUSMENT-L While not within the scope of this evaluation, this engineer assessed the existing residence on Lot 1 for any geotechnicall distress. No evidence of any foundation settlements or shifting were observed. Visual assessments of Lots 2, 3, and 4 by this engineer throughout the past year revealed no evidence of any geotechnical distress: No sliding, no creep, no shifting, nor any significant erosional degradation was observed on the overall property, including Lots 2, 3, and 4. In order to augment existing site geotechnical information, soil test pits were dug (by backhoe) under this engineer's observation on September 11, 2000. The findings of the three soil test pits (plotted on the site plan) were very similar, namely: 9' to 6" Organics, roots, and black silt 6" to 16" Brown silty sand, moist, with silt lenses 16" to approx. 6' Dense to very dense grey sand with gravels Ground water was encountered at three foot (3') depths in each of the three test pits, All test pit walls remained vertical and stable throughout the excavated time frame (approximately two hours). CONCLUSIONS/11RECpM MEnDATIQVI-1 Based on the findings of this investigation, and experience with similar sites in the area, Lots 2, 3, and 4 are geotechnIcally approved for the proposed single family residences, subject to the following conditions: -Standard reinforced continuous and spread footings. Allowable bearing pressure: 2,000 p.s.f. Equivalent fluid pressure of 35 p.c.f. is recommended for any retaining wall provided the drainage zone is inspected and verified by this engineer. For retaining wall design, use a friction factor of 0.55 and passive pressure of 350 p.c.f. The foundations for the proposed structures may be placed anywhere on Lots 2, 3, and 4, within the City of Edmonds setback distances. i Z 0 0 1 0 0 C m M M _Z > (J) 0 -n -n M 0 0 rr, ;0 Z Z 01 =! i C.) M Michel construction Page three Geotechnical inspection by this engineer a�� any foundation concrete placement. The proposed structures can be supported on conventional continuous and spread footings bearing on undisturbed native soils or on structural fill placed above native soils. See the later sub -section entitled r I for structural fill placement and compaction recommendations. Continuous and, individual spread footings should have —min—INIUM widths of eighteen (18) and twenty- four (24) inches, respectively, and should be bottomed at least eighteen (18) inches below the lower adjacent finish ground surface. Depending on the final site grades, some overexcavation may be required below footings to expose competent native soils. Unless lean concrete is used to fill the over excavated hole, the width of the overexcavation at the bottom must be at least as wide as the sum of two times the depth of the overexcavation and the tooting width. For example, an overexcavation extending two feet below the bottom of a three-foot wide footing must be at least seven feet wide at the base of the excavation. Footings constructed according to the above recommendations may be designed for an allowable soil bearing pressure of three thousand (3,000) pounds per square foot (p.s.f.). A one-ftrcl increase in this design bearing pressure may be used when considering short-term wind or seismic loads. For the above design criteria, it is anticipated that total post -construction settlement of footings founded on competent, native soils (or on structural fill up to five (5) feet in thickness) will be about one-half inch, with differential settlements on the order of one -quarter inch. Lateral loads due to wind or seismic forces may be resisted by friction between the foundations and the bearing soils, or by passive earth pressure acting on the vertical, embedded portions of the foundations. For the latter condition, the foundations must either be poured directly against undisturbed soil or the backfill placed around the outside of the foundation must be level structural fill. We recommend the following design values be used for the foundation's resistance to lateral loading: RAMMQ191 coefficient of Friction 0.55 Passive Earth Pressure 350 p.c.f Z I 0 rn 0 M 1 C 0 MI -0 C: M M i,�: Z 0 -n i ,n x -4 M OT 0 0 Fri C W r. Cn A 'C' z Michel Construction Pagetour Where: (1) p.c.f. is pounds per cubic foot. (2) Passive earth pressure is computed using the equivalent fluid density. We recommend that a safety factor of at least 1.5 be used for design of the foundation's resistance to lateral loading. SLABS-ON-GRADE� Slab -on -grade floors may be supported on undisturbed, competent native soils or on structural fill. The slabs may be supported on the existing soils provided these soils can be recompacted prior to placement of the free -draining sand or gravel underneath the slab. This sand and gravel layer should be a minimum of four (4) inches thick. We also recommend using a vapor barrier such as 6-mil. plastic membrane beneath the slab with minimum overlaps of 12 inches for sealing purposes. PERMANENT FOUNDATION AND RETAININra WALLS: Retaining walls backfilled on one side only should be designed to resist lateral earth pressures imposed by the soils retained by these structures. The following recommended design parameters are for walls less than twelve (12) feet in height which restrain level backfill: Parameter D&tgaslawa Active Earth Pressure* 30 p.c.f. Passive Earth Pressure 350 p.c.f. Coefficient of Friction 0.55 Soil Unit Weight 125 p.c.f. Where: (1) p.c.f. is pounds per cubic foot (2) Active and passive earth pressures are computed using equivalent fluid densities. For restrained walls which cannot deflect at least 0.002 times the wall height, a uniform lateral pressure of one hundred (100 p.s.f. should be added to the active equivalent fluid pressure). z 0 0 0 M _0 M M Z C 2 > 0 h M M 0 0 0 z z Michel Construction Page five The values given above are to be used for design of permanent foundation and retaining walls only. An appropriate safety factor should be applied when designing the walls. We recommend using a safety factor of at least 1.5 for overturning and sliding. The above design values do not include the effects of any hydrostatic pressures behind the walls and assume that no surcharge slopes or loads will be placed above the walls. It these conditions exist, then those pressures should be added to the above lateral pressures. Also, if sloping backf ill is desired behind the walls, then we will of the backfill in order to provide the need to be given the wall dimensions and slope appropriate design earth pressures. Heavy construction equipment should not be operated behind retaining and foundation walls within a distance equal to the height of the wall, unless the walls are I designed for the additional lateral pressures resulting from the equipment. Pacement and compaction of retaining wall backfill should be accomplished with hand -operated equipment. Retaining Wall Backfill Backfill placed within eighteen (18) inches of any retaining or foundation walls should be free -draining structural fill containing no organics. This backfill should contain no more than five (5) percent silt or clay particles and have no particles greater than four (4) inches in diameter. The percentage of particles passing the No. 4 sieve should be between twenty-f ive (25) and seventy (70) percent. Due to their high silt content, if the native soils are used as backfill, a drainage composite, such as Mirafi and Enkadrain, should be placed against the retaining walls. The drainage aulically connected to the foundation drain system. the composites should be hydr purpose of these backfill requirements is to assure that the design criteria for the retaining wall as not exceeded because of a build-up of hydrostatic pressure behind the wall. The subsection entitled General Faq�� �ru_rLLIF _JILcontains recommendations regarding placement and compaction of structural till behina retaining and foundation walls. N PIES: VA in no case should excavation slopes be greater than the limits specified in local, state and national government safety regulations. Temporary cuts up to a height of four (4) leet deep in unsaturated soils may be vertical. For temporary cuts having a ion no steeper than 11 height greater than four (4) feet, the cut should have an inclinat T _7 0 0 0 M M > o -n n Zii M M Or. Z z 0 Michel Construction Page six (Horizontal:Vertical) from the top of the slope to the bottom of the excavation. Under specific recommendations by the geotechnical engineer, excavation cuts may be modified for site conditions. All permanent cuts into native soils should be inclined no steeper than 2:1 (H:V). Fill slopes should not exceed 1:1 (H:V). It is important to note that sands do cave suddenly, and without warning. The contractors should be made aware of this potential hazard. Water should not be allowed to flow uncontrolled over the top of any temporary or permanent slope. All permanently exposed slopes should be seeded with an appropriate species of vegetation to reduce erosion and improve stability of the surficial layer of soil. Footing drains are recommended at the base of all footings and retaining walls. These drains should be surrounded by at least six (6) inches of one -inch -minus washed rock wrapped in non -woven geotextile filter fabric (Mirafi 140N, Supac 4NP, or similar material). At the highest point, the perforated pipe invert should be at least as low as the bottom of the footing and it should be sloped for drainage. All roof and surface water drains must be kept separate from the foundation drain system. Groundwater was observed in each of the three test pits during the field work. Seepage into the planned excavation is possible, and likely if excavation occurs during winter months, and if encountered should be drained away from the site by use of drainage ditches, perforated pipe, French drains, or by pumping from sumps interconnected by shallow connector trenches at the bottom of the excavation. The excavation and site should be graded so that surface water is directed off the site and away from the tops of slopes. Water should not be allowed to stand in any area where foundations, slabs, or pavements are to be constructed. Any exposed slopes to be covered with plastic to minimize erosion. Final site grading in areas adjacent to buildings should be sloped at least two (2) percent away from the building, except where the area adjacent to the building is paved. 154;112 14; E I _R LIA; FRIN"LOMKI Elk' 193 1 RIMMUTILB-0-15 101; Cul M A V3 -- The proposed building and pavement areas should be stripped and cleared of all surface vegetation, all organic matter, and other deleterious material. The stripped or removed materials should not be mixed with any materials to be used as structural fill. A Z 0 1 N� I V 0 C ) I A M. C -Z > o -n P, 0 0 Fn C C"� C- M Z. Z Z 0 0 M J Michel Construction Page seven NOTE: Specific clearing limits to be established at pre,construction meeting with City of Edmonds building officials and inspectors. Structural fill is defined as any fill placed under the building, behind permanent retaining or foundation walls, or in other areas where the underlying soils needs to support loads. This engineer should observe site conditions during and after excavation prior to placement of any structural fill. All structural fill should be placed in horizontal lifts with a moisture content at or near the optimum moisture content. The optimum moisture content is that moisture content which results in the greatest compacted dry density. The moisture content of fill soils is very important and must be closely controlled during the filling and compaction process. The allowable thickness of the fill lift will depend on the material type, compaction equipment, and the number of passes made to compact the lift. In no case should the lifts exceed twelve (12) inches in loose thickness. The following table presents recommended relative compaction for structural fill: Location pLEBLE6120= Minimum Relati QQM25-& =1 Beneath footings, slabs or walkways 95% Behind retaining walls 90% Beneath pavements 95% for upper 12 inches of subgrade, 90% below that level Where: Minimum relative compaction is the ratio, expressed in percentages, of the compacted dry density to the maximum dry density, as determined in accordance with ASTM Test Designation D-1557-78 (Modified Proctor). use of On -Site Soils It grading activities take place during wet weather, or when the silty, on -site soils are wet, site preparation costs may be higher because of delays due to rains and the potential need to import granular fill. The on -site soils are generally silty and thus are moisture sensitive. Grading operations will be difficult when the moisture content of these soils exceeds the optimum moisture content. Z 0 M -4 -n XM M 0 C M MZ, ID a Z o -n. rn M 0 0 C) 0 r- I - M' CA M0 Z' ck Z K Michel Construction Page eight Moisture sensitive soils will also be susceptible to excessive softening and "pumping" from construction equipment traffic when the moisture content is greater than the optimum moisture content. Ideally, structural fill which is to be placed in wet weather should consist of a granular soil having no more than five (5) percent silt or clay particles. The percentage of particles passing the No. 200 sieve should be measured from that portion of the soil passing the three -quarter -inch sieve. The use of "some" on -site soils for fill material mav_ be. aQQgDjAb1kif the upper organic materials is segregated and moisture contents are monitored by engineering inspection. DRAINAGE CONTROLS; No drainage problems were evident on Lots 2, 3, and 4. Surface runoff flows generally westerly into the existing drainage channel. This engineer recommends compliance with the City of Edmonds standard storm water drainage controls. CONCRETE; All foundation concrete (footings, stem walls, slabs, any retaining walls, etc.) shall have a minimum- cement content of 5-1/2 sacks per cubic yard of concrete mix. INSPECTION* The recommendations of this report are only valid when key geotechnical aspects are inspected by this engineer during_c�i U. Soil cuts Foundation subgrade verification Any retaining wall, or rockery placement Any f ill placement and compaction Subsurface drainage installation 5MMMA B Y - The three proposed single family residences (on Lots 2, 3, and 4) are geotechnically viable when constructed in accordance with the 0 0 rn M 0 --1 0 i pzt X FTJ M ID C z > 0 -n -n rn M, 1 a 0 0 Fn M 0 z 7-1 X _P 0 M 1D. Michel Construction Page nine recommendations herein, compliance with City of Edmonds approved plans and key geotechnical inspection AU =I construction. CLOSURE: The findings and recommendations of this report were prepared in accordance with generally accepted professional engineering principles and practice. No other warranty, either express or implied, is made. The conclusions are based on the results of the field exploration and interpolation of subsurface conditions between explored locations. If conditions are encountered during construction that appear to be different than those described in this report, this engineer should be notified to observe the situation and review and verify or modify the recommendations. If there are any questions, do not hesitate to call 1111111WITE Mm A"�- /� - Z�'- �- Dennis M. Bruce, P.E. Geotechnical/Civil Engineer DMB:vIb A ....... ........... ;IIT—H S ATL -------------- SN 1 2--- 'OT4; pl. It. me 1:17 172ND 5�5 , - - E:-- :--1 I Im I Z09TH ST 21! C, O� z OR z - - - -- - - - - - - --- - - - --- - - - - . . . . . .. . . . LU 17, p46 5 N�, -N(GIZ5.. 1441.- 64 FT. -Z,4� �Jca—�E g T �A- G-T A (PKIVATE' KO. -- ---- PLOTPLAN NI 2 0 . . . . . . . . . . . . . . . . ............ ID It-0 N cli RECORD OF INSPECTIONS INSPECTOR DATE APPROVED Ir SETBACKS ..................... FOUNDATION: z Footing ...................... TVQ Wall.......................... Fier/porch ................. Retaining �Vall 4 0C Slab Insulation .......... M M 00 PLUMBING: 0 Underground .. .......... M Ro gh-in u 10 commercial Final HEATING: Gas Test ..................... Gas Piping MITI Equipment ................ 0 0 M Commercial Final C 0) M EXTERIOR SHEATHING 34- :221 z NAILING .......................... I& � I FRAMING ......................... FIRST FLOOR FRAMING z INSULATION ................... Floor Insulation z Wall Insulation ........... Ceiling Insulation SHEETROCK NAILING SPECIAL INSPECTION --, —Z— MISCELLANEOUS .......... FINAL APPROVAL FOR OCCUPANCY I ................. _41FIE --a— CITY OF EDMONDS CONSTRUCTION PERMIT APPLICATION 11 NESS M MAILING ADDRESS AILII 71-07' 6)lVrr CITY Zip ITEL51"ll %)0 40';- NAME dyr/ i //('// IDDRES� ,//�//7 Z`X CITY zli' .......... I- i'v b v hl, 1(2, NAME ADDRESS TELEPHONE I m ql if, PERMIT EX IRES USE PERMIT 27f J ZONE NUMBER i B U TEIAPTN ADDRESS ;7�1 7;- PLAT N MEISUBDIVISION NO. LOT NO. LID No .20 ? 4 LID FEE $ PUBLIC RIGHT OF WAY PER IAL STREET MAP TE I P:�Apll-ll 0 P-1- `j . 0 t I u P, P EXISTING — PROPOS REOUIREDDEDICAT101— FT MIT LINE NO. OF FlXqES P I ,V4E, to jZE [XqES SjElUlolEl YE N 2MARKIIS-T-1— .1—INSIBLE FOR EROSION CONTROUDRAINAGE FAF mmmm DATE CITY zip vr, I- 1 -11- Lj_ IVIANIt W L INSPECTION INSPECTION I 'ON STATE LICENSE NUMBER 4 DATE CHECKEDBY RED 0YREO&WO ES 0 YES No ST DO S �'-TE P�__ I BID N AREA SERA REVIEW ON AREA SERA R Z HEIGHT P COMPLETE ALLOWED R POSED PROPERTY TAX AC OUNT PA P-L NO. COMPLETE EXEMPT ALLOWED PROPOSED ALLOWED PROPOSED Pi / 4 �Y EXP NEW RESIDENTIAL PLUMBING1 ECH ALLOWED LOTCOVER�GE REOUIR90 SETBACKS (FT) POPOSED SETBACKS (FT.) P SED FRONT S E REAR PONT UPSIDE REAR ROPO ID ANCE OR I 2,5.1 251 25.1' 2q, , '2' El ADDITION C] COMMERCIAL COMPL C] M o HANGE OF USE N B PARKING L )T AREA P E IEWE�By E E G M 0 RTM T REDO PROVIDED C3 HE ODEL 0 APARTMENT SIGN FENCE C-] REPAIR Y.S 0 1 _ X IT) REMAHW J�mgjoq' L�� o OTHER DEMOLISH TANK FF-F, mr-mo G A'AGE ING'W—. CA.I.PT RWT-NR C3 RENEWAL. PCF -MID q5 VA - 16 - ob TYPE OF USE. BUSINESS OR ACTIVITY) -1— 0 CHECKED B� TYPE IF WC '0' GC�' Upp"TQ IVL '4.,wl v o VCON- NUMBER NUMBER 0 DINEI I ING Sp CIAL IN -7 CC g�TOR AR A F'L: LOAD OF STO REOUIRED YES DESCRIBE WORK TO BE DONE REMARKS PROGRESS INSPECTIONS PER UBC 108/FINAL INSPECTION REO A ek) ell AVI)a/o wlnl!lz�'eL� tv t� , FEE- HIAT ....... PLAN CHECK NO: PLUMBING MECHANICAL THIS PERMIT AUTHORIZES ONLY THE WORK NOTED. THIS PERMIT COVERS WORK TO ON THE PUBLIC BE DONE ON PRIVATE PROPERTY ONLY. ANY CONSTRUCTION DOMAIN (CURBS. SIDEWALKS, DRIVEWAY , MAROUBES. ETC.) WILL REQUIRE GRADINGIFLL SEPARATE PERSMISSION. L STATE SURCHARGE PERMIT APPLICATION: IBDDAYS PERMIT LIMIT. I YEAR . PROVIDED WO RK IS STARTED WITHI N 160 DAYS ENG. REVIEW FEES SEE BACK OF PINK PERMIT FOR MORE INIORM ION ON BEHAL REIGNS AND SVCCESORS F HIS OR HER SPOUSE, HEIRS� A CITY OF ENO, I -SF CTION FEE ;APPLICANT. N INTEREST. AGREES TO :NDEMNIFY. DEFEND AND HOLD HARMLESS THE TS OFFICIALS, EMPLOYEES. AND AGENTS FROM ANY AND LA I I I N F OF WHATEVER NATURE. ARS NO DIRECTLY OR INDIRECTLY THIS PERMIT 8 E OF 5 PERMIT SHALL NOT BE RECEIR g P -C CK DEPOSIT o-s z- OF ANY CITY ORDINANCE 0 RDINANCE PROVISION.- RECEIP _26 TOTAL AMOUNT DUE o 50 )0( I H EREBY ACKNOWLEDGE THAT I HAVE READ THIS APPLICATION THAT THE INFORMATION P THE MY AUTHORIZED AGENT 01 THAT. THE -WNER6 I APPLICATION APPROVAL T GIVEN I ' CORRECT, AND, S OU - THE OWNER. I AGREE TO ;OVPLy WITH CITY AN STATE LAW RE LATING CONSTRUC CALL 1 8. P I Y r 114 DOING THE WORK ORIZED THEREBY. NO PERSON WILL BE EMPLOYED TION; AND AUTH L OF WASHINGTON RE ATING TO FOR INSPECTION "-p- Ilk-110dood 1. GP-11 Pl-d-d IN VIOLATION OF THE LABOR CODE OF THE STATE COMPENSATION INSURANCE AND RCW 18.27. OF11 CIALS SIGNAruRE DATE WORKMEN'S QVINEY OR (425) A 76T6RE LL 771-0220 -_V.LrASED 11 DATE _Aftb�TfON EXT 333 TO USE OR OCCUPY A BUILDIN G OR STRUCTURE UNTIL �-QAA 771-0221 IT IS UNLAWFUL A FINAL INSPECTION HAS BEEN MADE AND APPROVAL OR A CERTIFI- gORGINAl FILE YELLOW INSPECTOR PINK - OWNER GOLD - ASSESSOR CATE OF OCCUPANCY HAS BEEN GRANTED. UBC SECTION 109 Z 9 0 a m c m m Z 091 U) c Z 9 0 m