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20060283.pdfLC RECEIVED PERMIT EXPIRES ERM T LIM CITY OF EDMONDS PN 1'E R CONSTRUCTION PERMIT APPLICATION 'ATURESS Av-CUIT A- NE.—E A.EZ-LSIMSSS U PLAT NAMPSUBDIVISION NO, ING A RESS PUBLIC RIGHT OF WAY PER OFFICIAL STREET MAP 0 EXISTING � ..... REQUIRED DEDICATION --- FT _— W" METER LINE S1jEi NO� OF FIXTURES PEW REQUIRED AME YES 11 No 13 ti ADVRE!SS I E=all.-NTRACTOR RESPONSIBLE FOR EROSION CONTROU )RAINAGE "(I' DATE jtA'TE'['jCENS NO ER -C Day JE�cC m - - 7� ?'� k, -- 13 REDD I C.-Sls. I E.SMPT YES ONO HEIGHT CA. ZONE SIGN AREA 7ROPERV TAX ACCOUNT 00 PA �t)f� 4 1 ;,�� 0no- ALLO-D PROPOSED 'a.-EF -7114 STUDY — NEW T-� RES"E'NAL, PLU.131.. I NECH A LOT COVERAGE REQUIRED SETBACKS (ITL pa.1.1ED EET.,CKS (FT.) ALLOWED PROPOSED FRONT 40t REA FRONT �"10 REAR W � I ADDITION COMPLIANCE OR El CHANGE OF USE 74,1 I j� t I I RE ... EL MIXED SIGN PARKING LOTAREA PLANNING REVIEWED BY DATE FRQV'p RE PROVIDED 0-11?4b(o MULT, I- I , REPAIR GRADING Eyes 11 00 IEIOE ( X _FTL REm DEMOLISH TANK 17__ El 0 HER GARAGE eAAPgq�- RETAINING WALL ROOKERY 3E SPRINKLER ci F REALARM ��PE SINE" 11 A""' 111 CUPANT TYPE NUMBER �tRUCTJON ROUP 'ON ANT OF STORIES D ELLING UNITS ICIALINSPEC ;PE F.. YES .LE� DESCRISEWORK T—UU- REMARKS -7 atlo�n FEE F Plan C eck EDescription 6, EE�E Su State Surcharge HEATS,URCE LO SLOPE% VESTED DATE City Surcharge PLAN CHECK NO: �lu a Fee a Base Feel _�jb2ng -7, 2- T COVERS WORK TO TH15 PERMIT AUTHORIZES ONLY THE WORK NOTED. THIS PERM] THE PUBIC CONSTRUCTION ON BE DONE ON PRIVATE PROPER Y ONLY, ANY (CURBS, SIDEWALKS, DRIVEWAYS, MARQUEES, ETC.) WILL REQUIRE Grading DONMAIN SEPARATE PERMISSION. PERMIT APPLICATION: SEE ECDC 19.00,05(A)(5) PERMIT LIMIT. SEE ECDC R,.1BX(LIIA)IS) SEE SACK OF PINK PERMIT 'OR MORE INFORMATION Ea9r. Inspection Fire Review Plan Chk. Deposit ;AP.P11EC.AE1.T�.0AN.aEHALF IF "IS OR HER SPOUSE, HEIRS, ASSIGNS AND SUCCESSORS T R . To ..E IFY, DEFEND AND HOLD HARMLESS THE CITY OF MN Receipt # N 0 YEE% AND AGNTS FROM ANY AND ED OND IN 0 S F"C ALS' S TDREcT"y Fire Inspection 'EMP�ORE. ARS...,RECTLYOR M AT S NOT a AL CLA'4�WFA-SRH-AGMTA-"i-"-F--AT'�-R - UANC. � T.,. PERMIT HALL FIT a. 0 OM THE ISSUANCE OF THIS PERMIT, I.nds..pe InSp. Total Aral, Due Y MEN, 0, N CITY .,.A.c. AN R A Y . PeOv's'... EEMEO TO MODIFY, WAIVE OR REDUCE . . aE WAY THE CITY'S ABILITY F ANY FRA. E IN ANY NOR LIMIT Recording Fee Receipt 4 1 HEREBY ACKNOWLEDGE THAT I HMAVEIREAD THIS APPLICATION; THAT TH INFORMATION AGENT OF Th A A,,A.A I,— �y Ih. GIVEN IS CORRECT; AND THAT I A E OWNER, OR THE DULY AUTHORIZED A1.10 ST.A'� L�AWS REGULATING CONSTRUC- CALL �Vd�,g Off,CN1 ot NW- 0 ... IV ��d F— 11, PAIL ald THE OWNER, I AGREE TO COMP1yU%T0HRC1TY A Z�.T ER Y, . 'EaSONWILLaEEM LOY TION; AND 0 ING THE WORK TINS TE DO REL� FOR INSPECTION ,,,.pt., .1-111IM-n Space P-ded 'N IN VIOLATION OF THE LABOR CODE OF THE STATE OF WASHINGTON INSURANCEAlu)RCW 1-7 OF IALS S�GNA DATE WORKMEN'S COMPENSATION DATE SIGNED (425) _tRE L L -�ER OR AGENTI� kt-'N 2— 71-022 7 771-022 BED By 13 3 EXT. 13 i141v ATTENm6N IT IS UNLAWFUL TO I OR OCC`UAA BUILDING OR STRUCTURE UNTIL FINAL INSPECTION HAS BEEN MADE AND APPROVAL OR A CERTI. OW INAL ASSESSOR A OCCUPANCY HAS BEEN GRANTED. USC109 I IBC110 I IRC110 PINK -OWNER GOLD - FICATE OF PRESS HARD - YOU ARE MAKING 4 COPIES 10104 z 0 1 0 R1 C m M 0 --10 00 X M M Z co 0 -n m m 0 Fa OE- 0 m 0) C/) M 0 Z z Cl) z 0 0 m NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. VTTV rnpv =1 PT r A (7[jL," TO 11 1) 1 1 1— ?p Q v POINT "LEEVATION' 2�7.0 D TOTAL 177 T7 ,�Vr- —ELEV--, 1ON MAX. 5LDG P.-El6kT (25 FT) 2 3-7 DATUM� SSM�Jll 21-2,'-2W P N'wl CORNER !N STF,�E=-T L 00CW FRE C E 1 V E 0 OCT I �i ?005 IMFERVIOU5 C-UFRFAr-F- PERMIT COUNITER T� —HOUSE 2aa4 eF Dr,;vE 7-00 5F 27a PATIO 4AL< TOTAL 3502 5F APPROVED BY PLANNING R) LOT COVERAC ZX C8 5A (7�Pl RE 2.7j 84 2544 5F BUILDING FOOTPRINT 265 84 7� LOT AFZ---A i2000 5F LOT COVEYGE 21%, 0 one Comer — Flaa kw— kh� � ed ActUal L: Front W ViTil SidesN/�2-- ID' Rear e M, M ffTl \/V�'�WV4C"'Other 27- M H S�Zht Q1 EX. Gv V 20'-0",* lro-+f -c M0dI*-ftcah*cFy7 63 "1 I'l I'C- -h Dennis M. Bruce, RE. M.S.C.E., M.B.A. Geotech ical Evil En ineer June 20, 2005 CITY COPY Oct Silver City Construction P-`R41/r P.O. Box 1417 Mukilteo, WA 98275 CC Subject: Geotechnical Evaluation — Foundation Recommendations 0 Proposed 3 New Residences 7e Ave. W (near 157th St. SW), Meadowdale area, onds, Ui --i Washington 1,-1 Ill -) �-d A-,[ 'T" 2: z om This engineering report presents the results of a geotechnical evaluation of the Silver City property on 72nd Ave. W (near 157th St. SW), in the Meadowdale area, Edmonds, Washington. This evaluation was required due to owner / contractor concerns, as well as City of Edmonds requirements. REFERENCES: RECEHED • Property Survey and civil layout by Tietze and Associates n) I OCT 19 2005 • Individual house plans (to be submitted by Silver City ConstructE • Site photographs EECE BACKGROUND: The overall property is understood to consist of 3 lots (for the proposed 3 new single-family homes). The northern lot is designated ut-ot Kand has approximately 122 feet of frontage along 72nd Ave. W. The intermediate lot is designated "Lot C" and has 85 lineal feet along 72nd Ave. W. The southern lot is designated 'Lot B" and also has 85 lineal feet of frontage. All 3 lots are approximately 150 feet deep. The lots have never been developed and contain mature trees, shrubbery and grasses (see photographs). The rear portion of all 3 lots (the easterly zone) contains slopes that exceed 40 percent in declination (see Topographic Map). At the time of this report, it is understood that Silver City Construction proposes to construct 3 new single-family residences with access drives off 72nd Ave, W (see Site Plan and Project Plans). Site grading will require slope stabilization using standard rockery techniques as indicated on the Civil Plans. Geotechnical inspections required for rockery construction on slopes. SOILS - FOUAVA 7IONS - SITE DEVELOPMENT - INSPECTION - DRAINAGE - DESIGN& PERMIT - LEGAL P.O. Box 55502 - Shoreline, WA 98155 - (206) 546-9217 - FAX (206) 546-8442 MID 0 80 C M M Z 0 -n M M 0 091 C 90) M 0 Z > Z Z 0 q 0 M Silver City donstruction' June 20, 2005 Page 2 Visual evaluation of the property revealed no evidence of any geotechnical distress: no slides, no settlements, no soil tension cracks or any evidence of erosional degradation. EVALUATION: In order to augment the existing site geotechnical information, 4 soil test pits Z -04 were dug under this engineer's observation on June 7, 2005 using a track hoe (see 0 photographs). One test pit was dug on "Lot K, one pit on "Lot C" a nd 2 pits on "Lot B". All 4 test pits revealed similar sub -grade conditions, namely: 011 to a" Organics, roots, and organic silt -4 M C 8" to 8' (bottom of test pits) Very dense sand with gravels M 0 0 80 C No water was encountered in any of the 4 test pits. All test pit walls remained -4 C X M vertical and stable. No sloughing or caving occurred. M Z CONCLUSIONS I RECOMMENDATI C 2 -4 X Based on the findings of this investigation, and experience with similar sites in th O"n "n the area, the Silver City property on 72nd Ave. W (near 157 St. SW), Edmonds, Washington is neotechnically approved for the proposed 3 new residences, subject to M M the following: 0 0 No excavation deeper than 4 feet without geotechnical review and temporary shoring. At the time of this report, it is understood that no excavation will exceed 4 feet in depth. If deeper excavations are utilized, additional geotechnical review and shoring recommendations are reguired. 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 design provided drainage zone is inspected and verified by this engineer. For retaining wall design, use friction factor of 0.55 and passive pressure of 350 p.c.f. Geolechnical inspections by this engineer prior t any foundation concrete placement. The proposed structure 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 General Earthwork and Structural Fill for 0 C M M 0 Z .`1T ;U Z Z 0 M Silver City Construction June 20, 2005 Page 3 structural fill placement and compaction recommendations. Continuous and individual spread footings should have minim 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 over -excavation 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 over -excavation at the bottom must be at least as wide as the sum of two times the depth of the over -excavation and the footing width. For example, an over -excavation 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 two thousand (2,000) pounds per square foot (p.s.Q. A one-third 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. NOTE: The bearing capacity of 3,000 p.s.f. applies to over -excavated and backfill conditions. Footings placed on native soils may be designed for 2,000 p.s.f. 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 backlill 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: Param Design Valu Coefficient of Friction 0.55 Passive Earth Pressure 350 p.c.f. 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. z c: m M CI 0 C M M z c: 0 'n 3:9 M M a 0 C m M 0 z z z 9 0 M Silver City Construction June 20, 2005 Page 4 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 re -compacted 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 z slab with minimum overlaps of 12 inches for sealing purposes. PERMANENT FOUNDATION AND RETAINING WALLS: Retaining walls backfilled on one side only should be designed to resist lateral V M C earth pressures imposed by the soils retained by these structures. The following M 0 0 recommended design parameters are for walls less than twelve (12) feet in height, -40 0 which restrain level backfill: C d 9 Parameter Design Value Active Earth Pressure* 35 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 defect 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). 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. If these conditions exist, then those pressures should be added to the above lateral pressures. Also, if sloping backfill is desired behind the walls, then we will need to be given the wall dimensions and slope of the backfill in order to provide the appropriate design earth pressures. m M '0 F5 z 0 -n 'n M M a 0 0 M C CO 9 CO M 0 Z z -4 M (n 0 m silver City Construction June 20, 2005 Page 5 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 designed for the additional lateral pressures resulting from the equipment. Placement 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) pprcent silt or clay particles and have no particles great4 than four (4) inches in diameter. The percentage of particles passing the No. 4 sieve should be between twenty-five (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 beplaced against the retaining walls. The drainage composites should be hydraulicalIV connected to the foundation.drain system. The purpase of these backfill requirements is to assure that the design criteria for the retaining wall is not exceeded because of a build-up of hydrostatic pressure behind the wall. The subsection entitled General Earthwork and Structural Fill contains recommendations regarding placement and compaction of structural fill behind retaining and foundation walls. EXCAVATION AND SLOPES: At the time of this investigation and report, excavations are proposed to be no deeper than 4 feet in depth. If actual excavations exceed 4 feet in depth, additional geotechnical review is required with probable temporary shoring utilizing Ecology - Blocks will be necessary. 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) feet deep in unsaturated soils may be vertical. For temporary cuts having a height greater than four (4) feet, the cut should have an inclination no steeper than 1:1 (HorizontalMertical) 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 2H: 1 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. Z 0 0 M M 0 80 C M Z 0 -n n �d M M 0 0 M C cl) C ri) M 0 Z > Z Z M Silver City Construction June 20, 2005 rage 6 DRAINAGE CONSIDERATIONS: Footing drainsare 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. No groundwater was observed in any of the 4 test pits during the fieldwork. Seepage into the planned excavation is possible, and likely if excavation occur I s 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 of the site should be graded so that surface water is &ected off the site and away from the tops of slopes. Water should not be allowed to stan in ny 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. GENE L EARTHWORK AND STRUCTURAL FILL: 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. Structural fill is defined as any fill placed under the building, behind permanent I retaining or foundation walls, or in other areas where the underlying soi s 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: Z 9 0 M C MO 0 80 a M M Z 0-1 0 -n n �U -1 - 3:9 M M 0 0 0 M C ci) 90) M M --i 3: Z Z 0 M Silver City Construction June 20, 2005 Page 7 Location of Fill Placement Minimum Relative Compaction Beneath footings, slabs or walkways 95% Behind retaining walls 90% z Beneath pavements 95% for upper 12 inches of 9 0 Sub -grade, 90% below that level M Where: Minimum relative compaction is the ratio, expressed in perceniages, of the compacted dry density to the maximum dry density, as determined in accordance with ASTIVI Test Designation D-1 557-78 (Modified Proctor). Use of On -Sit oils If grading activities take place during wet weather, or when the sandy, 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 sandy and thus are not highly moisture sensitive. Grading operations will be difficult when the moisture content of these soils greatly exceeds the optimum moisture content. 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 may be acceptable if the upper organic materials are segregated and moisture contents are monitored by engineering inspection. DRAINAGE CONT No drainage problems were evident with the Silver City property on 72nd Ave. W. The property slopes downhill to the west with any runoff entering the City of Edmonds storm system in 72 nd Ave. W. It is understood that development of these 3 lots will require street improvements to include storm water drainage controls. The sub -grade soils are extremely sandy and will allow for on -site infiltration if desired. This engineer could provide on -site infiltration designs for storm water controls. 0 C M M 0 0 80 C M M z 0-4 C 0 n M M 0- 0 0 0 C ca 9 V) Q 0 z z Cn z 0 0 m Silver City Construction June 20, 2005 Page 8 CONCRETE: All foundation concrete (footings, stem walls, slabs, any retaining walls, etc.) .,t ff ^f r_1 /9 Qmr.kQ np.r nt thin v;;rri nf concrete mix. SLOPES — SETBACKS — BUFFERS: This engineer has reviewed the Site Plan by Tietze and Associates dated June 7, 2005. The Site Plan indicates that each of the new residences will be located in the western portion of the lot with driveway access from 72nd Ave. W. These house siting locations are geotechnically approved, subject to inspections by this engineer. The eastern pqrtions of the 3 lots will require slope grading and rockeor walls for erosion stabilization. irnspections are required for rockery construction on slopes. If actual house locations are altered from the current Site Plan, this engineer should review house locations and make additional recommendations as required. EROSION HAZARD AREA — DESIGNATION: It is understood that the overall property is designated as a potential erosion hazard area given the presence of Alderwood Everett soil type on slopes 15 percent or greater. The findings of this geotechnical investigation have verified dense sub -grade sands that allow for excellent foundation support and excellent sub -grade drainage. The construction of 3 new residences with reinforced concrete foundation elements, proper drainage controls, and slope stabilization rockeries will improve any potential for erosion on the slopes. INSPECTIONS: The recommendations of this report are only valid when key geotechnical aspects are inspected by this engineer during construction: • Soil cuts • Temporary shoring, if required • Foundation sub -grade verification • Any retaining wall, or rockery placement • Any fill placement • Subsurface drainage installation Z 2 0 M MO 0 80 M 0-4 a T C') 0 _n n M M 0 C_ 0 rf) 0 M C 0) 90) M 0 Z ;U Z 9 0 M Silver City Construction June 20, 2005 Page 9 Temporary and final erosion control measures SUMM The proposed 3 new residences by Silver City Construction on 72nd Ave. W, Edmonds, Washington are geotechnically viable when constructed in accordance with the recommendations herein, compliance with City of Edmonds approved plans and z requirements, and key geotechnical inspections during construction. 9 0 GEOTECHNICAL REVIEW OF FINAL PLANS: At the time of this investigation and report, final house plans were not available for review. M C 0 M 0 As stated in this report, the June 7, 2005 Site Plan indicates that each new 0 0 residence will be locai&d'in the western portion of the lots with no significant soil cuts m M greater than 4 feet in depth. — Prior to final issuance, this engineer should review the final house plans to C > C 3! �!, permit verify compliance with the recommendations of this report, o -n n 'T Upon satisfactory review, a "Statement of Minimal RisW'w ill be issued. M M CLOSURE: 0 r 0 The findings and recommendations of this report were prepared in accordance c: r ch MO wi I th generally accepted professional engineering principles and practice. No other z warranty, either express or implied, is made. The conclusions are based on the results ;0 of the field exploration and interpolation of subsurface conditions between explored locations. If conditions are encountered during construction that appear to be different > z 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. z DMB �1= DOD Dennis M. Bruce, P.E. GeotechniGal I Civil Engineer PROP /-, AT SHOR T Z 292.0 it 284.4 -/v YD - 4. Tr tv u + 0 koCII-CRY WALL "'t MAX HEIGH 1- 8' m - T I i c: > E� 5/ 0z IZ co 0 C) r C CD M 0 14J. 65' 156. 74 0 ,V n4 0 t?OCKER Y P y ,14F-T VE, MAX 0 3\3?, E-R'Y WAL� 61 HOUSE -V LOT 0 F10b19 fLf 2,�2. 0 VACXI�r 2774 El , I I . . . . . . . . . 'A 'A v" ROCIrERY WAZL AfAx HEloHr-6' /W 3URG'EO RESIMWOF MAX 1-111OHr HOL15E Er,-EPTION OT C FlobR Ell 272.0. VACANT r ------------ '271. % w 2.9,T. 0^ ROCA 270.4 (6R)' WAZL MAX HSICHT !8' 272.4 tOTA JIROF05io HOUS ROOR EEY 04(�ANr 272 9 'OA, 272.4 272.4 Wl tr, MaM U* Ub uu:jia u. uruce, r.in. 4uo_nq�_U�le Dennis M. Bruce, RE. M.S.C.E., M.B.A. h I/Cl 'I E Geotec nice ivi ngpeer April 26, 2006 R E C E I V E: City of Edmonds Community Services Division DEVELOPMENT SERVICES CTR. CITY OF EDMONE)S z 121 e Ave.N Edmonds, WA 980— Subject: Field Reports — Geotechnical Inspections ,,7,,,,,7,,,15711 72nd Ave. W, Edmonds, Washington Silver City Construction New Residence City of Edmonds Permit No. 05-1099 (15719 72 �d Ave. W) This engineering report presents the results of ongoing geotechnical inspections for the 3 new residences by Silver City Construction at the above addresses. These inspections were required as a condition of permit by the City of Edmonds. REFERENCES: City of Edmonds approved Project Plans Geotechnical and Inspection Reports by D. Bruce, P.E. City of Edmonds Special Inspection Agreement Site photographs INSPECTION This engineer provides 4gik on-si I te geotechnical inspections during periods of active geotechnical work (excavation, foundation preparation, any fill placement, subsurface drainage, rockery / keystone block wall, etc.). At a minimum, 2 inspection visits are provided each week. Southern Lot (15719 72rd Ave...SW): Sail Cuts: As previously verified, all excavation soil cuts encountered the dense '�afive sub -grade soil (dense sands with gravels). These sub -grade soils easily provide 2,000 p.s.f. bearing capacity. No significant excavation has occurred since January 2006. All excavations are stable through this date (April 26, 2006). SOILS - FOUNDA77ONS - SITE DEVELOPMENT - INSPECTION - DRIA11"AGE - DESIGN &PERMIT - LEGAL P.O. Box 55502 - Shoreline, WA 98155 - (206) 546-9217 - FAX (206) 546-8442 --A n 0 m C C, V m 0 -40 0 C: M m M z C o -n n Lo m M a 0 0 M 0 3: z z 9 0 m Mati 05 06 08:31a U. Bruce, P.E. 206-546-8442 F. 2 City of Edmonds Re: Silver City Construction April 26, 2006 Page 2 Temporary Shorim: As previously discussed, the dense stable sub -grade soils allow for open cut excavation wan appropriate slope of cut. No temporary shoring was required for this southern lot. Eoundabon Sub -Grade: Previously verified at 2,000 p.s.f. bearing capacity. footings and stem walls in z contractor subsequently Placea foundation with City of Edmonds approved Plans. accordance Additionally, this engineer verified dense sub -grade soils providing excellent 0 M foundation support for the tiered keystone block walls on the lot, 9 Fill Material: No fill material required for foundation sub -grade purposes. Vi --i m Locali7ed gravel required in conjunction with keystone block wall construction. M 0 8 0 All fill material properly placed. Subsurface Drainaige: This engineer inspected and verified proper placement of 3: M subsurface drainage in accordance w ith City of Edmonds approved Plans. C > z Rockery / Key§tone.Wall Placement: Con tractor has properly installed a two- erly) and the north sides of the Idt (see X -n tiered keystone block wall at me rear least photographs). All base block were property founded in compac led gravel on -n aterial. Block linkage batter and drainage zone comply with dense sub -grade m I s and good inspection in m the manufacturers recommendations, geotechnical practices. Ali keystone block walls on the southern lot are approved as a 5 Or. 0 M constructed. C 0) 9 cn Temporary Erosion Control Measures: Contractor continues to properly maintain M 0 F T the rocked construction entrance and down -slope siltation fencing (see ;0 photographs). Middle Lot (15715 72 nd Ave. fi�W: z V Soil Cuts Dense sub -grade soils were verified during the excavation phase. All rA excavation cuts remain stable (see photographs). z TemporarV Shoring: Not required due to extremely dense sub -grade soils and m 'benching" of the excavation cuts by the project excavator. Foundation Sub -Grad : This engineer verified dense native soils easily providing Wto with foundationformwork, 2,000 p.s.f. bearing capaciry� Proceed RECEIVED IMAY DEVELOPMENT SERVICES CTR. CITY OF EDMONDS Ma!J 05 06 08:31a D. Bruce, P.E. 206-546-8442 P.3 City of Edmonds Re: Silver City Construction, April 26, 2006 Page 3 reinforcing steel and concrete placement in accordance with approved Plans. House foundations have been subsequently placed (see photographs). Fill Material: No fill material was required for foundation sub -grade purposes. Backfill has begun adjacent the foundation stem walls. This engineer inspected Z and verified proper placement of imported gravel as well as placement of native material. All Fill material placement is app ved through this date (April 26, 2006). M Subsurface Drainag : Ongoing — inspections continue to monitor. Rockery I Keystone Wal: Not yet. It is understood that Silver City Construction m C m P roposes; to incorporate a terraced system of keystone block walls at the rear 0 -40 and north portions of this middle lot (similar to the already placed keystone walls 0 C at the southern lot). -ML MT - Temporary Erosion Control Measures: Contractor continues to maintain 0-4 C — Z appropriate temporary erosion control measures as with the southern lot. > Northern Lot (1571172 d Ave. SWI. o -n . Soil Cuts: Recent (April 20, 2006) inspections have verified extremely dense, m M glacially consolidated sub -grade soils as anticipated by the Geotechnical Report a — t' W and similar to the dense sub -grade soils encountered on the southern and middle 0 o Fn lots (see photographs). C ca All excavation cuts were stable through this date (April 26, 2006). M 0 Z This engineer recommended to Silver City Construction and project excavator to 'lay back" the top 3 feet of excavation to minimize the potential for erosional > sloughing. Geotechnical inspections continue to monitor soil cuts. Z - Temporary Shod Not yet required — geotechnical inspections continu6 to (a monitor soil cuts. Z . Foundation Sub -Grade: Verified dense, glacially consolidated soils easily m providing 2,000 p.s.f. bearing capacity. Fill Material: None yet required. R E C E I V r-- MAY 4,00 DEVELOPMENT SERVICES CM CITY OF EDMONDS matj 05 06 09:31a D. Bruce, P.E. 206-546-8442 p.4 City of Edmonds Re: Silver City Construction,, April 26, 2006 Page 4 Subsurface Drainage: Not yet. Rockeryl Keystone Wall: Not yet this engineer understands that Silver City Construction proposes to install a terraced system of keystone block walls similar el-rHEP, -roe *-r-rAeOrA to those already installed on the southern lot. ok BLOC14 WALL .9yS-rE7M WtLt- z Geotechnicall inspections will continue to monitor placement of keystone block -ro*-r A 9FPEFkA-rLF wallp. t-r IS UWheP-,,,-rooh 1,S TIM 6 Frok WAL4�, OA) N. (ALLAPh ?PbPgA:Ty. Is A-1 "A 5i Temporary Erosion Control Measures: Appr through date (April 26, --j i-006). m SUMM 0 0 Ongoing geotechnical inspections have verified that site conditions are consistent C C X m with approved Plans and normal good practices. m The foundation work has been completed on the southern IoL The foundation for C: the middle lot has also been completed with backfill operations underway, Excavation has recen tly occurred for the northern house. 0 "n -n Geotechnical inspections are ongoing. 3:9 m M NOTE: The proposed terraced keystone walls for the middle and northern lots —0) 0 may require neighbor approval If soil cuts and keystone block walls extend T beyond Silver City property lines. This engineer recommends that Silver City M 0 Construction ygEft where actual property lines occur and if necessary, discuss placement of terraced walls with neighboring property owners. If there are any questions, do not hesitate to call. 01 wAs z DMB:abj cc: Silver city Construction 17405, A -- Dennis M. Bruce, P.E.. MAU Geotechnical I Cii il Engineer I -Ems .12aY .?-ID 1 0 R 5 C E I V E D DEVELOPMENT SERVICES CTR- CITY CF EOWNDS X Cn z 9 0 M MATHEW & NATALIA ALLARD CL 4 m 5 ag we W" c r OZ.4 T 284.4 P.92. 4- 12, PLUM Ln t-0 ru 'N V 1, Rocl(ER)l — 7HICAZAIEV CL m 2SZ 4 0, 0 5A, (7)Pl' L RomRr WAll RE z7j 84 A 75 5' % O'A i6b 12 Ifd,9RCW A in :Y5 4J'< .5. Mau Ub Ub uu:s?a 1). Hruce, V.h. ek.18-t,46-1,144i� P.b silver Cit4 Construction 4253531668 P.3 I rr MIN ROCKS MCI rX TION L4 W.: ^-Is PROVIDE SW -,. CRAD ANn ORIAN TO AP,�4V.EMYSMTEX 12' or co PACICO SOIL OVER c.;(OPF. TO DRAIN "u. V— CACC AND 01 Rw A�r�. UNDISTURBED NATIVE SOIL- EXISTING/OF 4INAL GRADE I'-Q* MIN LOWEL ROCK A GIKAINO 0 Pk()KHry LINF 2 uj m I x QUA Y SPALLS 7 3A4! CC TO 4' IN SIZE 0 GEOTEXTILE ROAD FILTER FABRIC 10 Z .1 FIC4E DA MIETER 01� LARGEST POCK IN BOTIOV, 6urtsr. on WHICHEVEJ? IS GREATER MIN 6* O� PERF 00 Ofum, PIPE CENTERED I 15_ff�I_S A.-C SHALL NOT—] L_— — HOW. IN BEDDING. SU) FO Eq 10 DRAIN AND CONNECT 70 BE , §S AN J... 1.,L IT =M OfZMN AIL OF THE ROC CRY AND NOT ,It LF'Ar (24 L, s T—N'1'0 Fr FROM COG n an. WHEN StOEVALKS A NOT POCSIENT. ��--JIJNDISTUROCD NATIVE: SOIL OR COMPACTED CRUSHED ROCK. A' HEQUIRCE) ROCKERIES SHALL NOT BE CONSTRUCTED IN CITY FLO.W. OR OVER PUBLIC EASEMENTS GENERA — -Nn TESI 1. SPECIM. INSPECTOR SHALL VERIFY ROCKERY HEIGHT, FUUN04TION MATERIAL. AND Anc. size. 21. QUARRy.SPALLS AND CRUSHED ROCK SHALL Bt: PLACED DmEctLy rROM TRUCK OR OTHER SUTTAIBLE CONTAINER IN CRDER TO MAINYIATN CLEAN RACKrILL. ROCK —WALL SCHEDULE WI—NIMUM ROCK SIZE 3. CIAENINGS S140ILI, BF 'CHINKED' WIIH OUARRY WALLS. HrIGHT 2 FEET 13ASF _TOP MAN 2-MAN 4 ROCKERIES SHALL HE DESIGNED AND STAMPED BY A LICENSED PROFESSIONAL — -;fFEET —T—MAN 2mMAN &EINCER IF GRrATEr TNwN 8 FEET IN HEIGHT OR IF VARYINIG CROM THESE 6 FEET 4�MAN 2WAN STANDARDS. OR IF CC�It,��t -TIONS� ISUC" _�Ef, �T X�Z�RD A.I�S —T -6'f—FFT S-MAN 2-MAN CIR ED-M 0"N' -R VI N�a STANDARD L)E(AIL D. GEBERT 09/09/2005 ROCKERY DETAIL TS E 8,9 RECEIVED DEVELOPMENT SERVICES CTR CITY OF EDMONDS z 0 c: M 0 80 --I = M ME z c Ri 0 -rT "n -i m M 0 0 F; c: cn M 0 M z z 0 d 0 FIT Mau 05 06 08:33a D. Bruce, P.E. 206-546-8442 p.7 Silver Cjt4 Constructi011 42535316138 P.4 BACKFUL BEHIND WALL WITH 2R.Ov V-O" MIN WIDTH OF CLEAN, WELL OFAININC GRANULAR FILL PER MANUFACTURER'S RECOMMENDATIONS 6" TOPSOIL OR GRAVEL OVER MTEKTILE BLOCK CAP GROUBEO IN PLACE FILL IN VOIDS W/ 1/2' TO 3/4- IV MAX MINUS CRUSHED ROCK OR PER UANUFACTURMS RECOMMENDATIONS z 0 0 CEO FILTER FABRIC ROAD SURFACE 0 FEE DIA PERF RIGID ORAN MIN 6 PIPE CENTEFIED HOR17 IN BEDDING. SLOPE TO GIVEN AND CONNECT TO STORM DRAIN SYSTEM. ROMOC CtEANOUM L.V"B" USS THAN I t4ND=g%D GIVE WALL HECMT 0 V NAM, SOIL WITHOUT A PERMIT AN ULAN A DESIGN By A SAS& AS REQUIRED LICENSED Ewnr& PRIVATELY OWNED BLOCK WALLS SHALL NOT BE CONSTRUCTED IN CITY R.O.W. OR OVER PUBLIC EASEMENTS IF WALL A"TS A PRIVATE A 2' SHY DISTANCE SHALI THE WALL FACE AND EOCI famst I — I� "DOX"AFE BLOCK NALLS WITH GEOCFW REINFORCING SHALL Be DESIGNED AND STAMPED BY A STATE LICENSED PROFESSIONAL ENGINEER. IF HECHT EXCEEDS 4�- 2. MODULAR %=K WALLS OVER 4'-0' IN HEIGHT ANDIOR I.CCATEE, IN A CRITICAL ARE& OR MFADGWDALE EARTH SUBSIDENCE OMMUOE HAZAND AREA, REQUIRE A BUILDING PERMIT AND MUST BE DESIGNED AND STAMPED BY A STATE LICENSED PROFESSIONAL ENGINEER. 3 MOO" BLOCK WALLS OVER 3'-0" IN nEon MEASURED FROM ORIGINAL GRADE ARE NOT ALLOWED WITHI S�1�5 AREAS. N BUILDING vO TONS STANDARD DETAIL D. GEB 04/27/05 MODULAR BLOCK WAt ERT D. GEDERT 39/09/2005 INIFE D DEVELOPMENT SERVICES CTR- CITY OF EDMONDS m 0 80 C -4 M X M TIT z .,.:2 CA 0 -n m M 0 0 o C ED MCI) M 0 Z z U) z 9 0 m Height Calculation Worksheet Q 0( Date 0 Permit Number '�Oa6-43 'k. Address I S Inspector z Average Grade P 94 4 Max Height (25'+Ave.) 31 Oi 3 Actual Height (A+B+C) 19, M 0 00 C M C CO 0 -n M M =(C 0 0 K CO, lb'O M 0 z z z 0 M Elevation of transit above Datum (B) Datum '>Im t,� Elevation (A) l/temp/building/fomis/height workshect 7777777�1 Dennis M. Bruce, P.E. ..E., M.B.A. aer August 29, 2006 RECEIVED z City of Edmonds SEP 19 2006 Community Services Division R1 1215 th Ave. N BUILDING DEPT. Edmonds, WA 98020 Subject: Field Reports — Geollechnical Inspections 15719,15716,15711 72nd Ave. W, Edmonds, Washington Silver City Construction 73 Now Residences City of Edmonds Permit No. 05-1099 (15719 72 nd Ave. W) This engineering report presents the results of ongoing geotechnical inspections for the 3 new residences by Silver City Construction at the above addresses. These inspections were required as a condition of permit by the City of Edmonds. REFERENCES: • City of Edmonds approved Project Plans • Geotechnical and Inspection Reports by D. Bruce, P.E. • City of Edmonds Special Inspection Agreement • Site photographs INSPECTIONS: This engineer provides 4AU on -site geotechnical inspections during periods of active geotechnical work (excavation, foundation preparation, any fill placement, subsurface drainage, rockery / keystone block wall, etc.). At a minimum, 2 inspection visits are provided each week. Southern Lot (15719 72nd Ave. SW): Soil Cuts: Previously verified and stable The excavation for the house encountered dense, stable sub -grade soils. No adverse effects. Additional soil cuts were made in conjunction with the multi -terraced keystone block Walls around this residence (see photographs). All soil cuts and excavations are stable through this date (August 29, 2006). SOILS FOUNDATIONS - SITE DEVELOPMENT - INSPECTION . DRAINAGE - DESIGN & PERMIT - LEGAL P.O. Box 55502 - Shoreline, WA 98155 - (206) 546-9217 - FAX (206) 546-8442 C rn MO 0 80 C In th z C 5; -4 �2; I, W 0 'n i X rn In a vi - 0, 0 M C 0) K (n Q 0 Z r- z -4 3: V) z rn City of Edmonds Re: Silver City Construction August 29, 2006 Page 2 . Temporary Shoring: Previously discussed — not required. * Foundation Sub -Grade: Previously verified and approved for the residence To-L ndation as well as the keystone block walls. z 0 Fill Material: No fill material was required for the residence foundations. 0 Structural gravel was properly used in conjunction with the terraced keystone block walls. -4 X C M o Subsurface Drainage: Previously inspected and approved. M 0 -40 0 Keystone Block Wall: Previously inspected and approved. Ongoing inspections C M M z verified the proper performance of the multi -terraced keystone block walls at the 0-4 rear and north portions of the residence (see photographs). Additionally, z contractor has "back graded" the slopes above and adjacent to the terraced walls. All keystone block walls remain stable and are approved, pending 0 n permanent erosion control measures (yet to be completed). Temporary Erosion Control Measures: Contractor continues to properly maintain M M a the rocked construction entrance and down -slope siltation fencing (see 0 0 photographs). NOTE: Permanent erosion control measures have yet to be C 9 Cn installed — geotechnical inspections are ongoing. ITI 0 Z nd Middle Lot (16715 72 Ave. SW): ;U * Soil Cuts: Previously verified and approved - all excavation is stable through this > z date (August 29, 2006). -4 Contractor subsequently properly installed ft.)undation footings and stem walls, as z well as proper backfill operations. 9 Temporary Shoring: None required due to "bench cuts!'as inspected and verified by this engineer during construction. a Foundation Sub -Grade: Previously verified. Foundation footings and stem walls �ave been properly installed in accordance with City of Edmonds approved plans. 0 Fill Material: No fill material was required for foundation sub -grade purposes. "I City of Edmonds Re: Silver City Construction August 29, 2006 Page 3 Backfill operations were properly completed, as well as the terraced keystone block walls at the east and north portions of this lot. All fill material and placement is geotechnically approved. Subsurface Drainage: This engineer inspected and verified proper installation of subsurface drains in accordance with approved plans and normal good practices Z approved. Keystone Block Wall: As previously discussed, Silver City Construction has submitted modified plans incorporating the terraced system of keystone block walls. This engineer has provided and continues to provide on -site inspections for: base block sub -grade, block linkage, geo-grid placement per manufacturer and this engineer's recommendations, compacted structural backfill, and overall "blending in" with the existing site slopes. All terraced keystone block walls are approved for this lot. NOTE: Permanent erosion control measures have yet to be established on the slopes adjacent and above the keystone walls — geotechnical inspections are ongoing. Temporary Erosion Control Measures: Contractor continues to maintain appropriate temporary erosion control measures as with the southern lot. NOTE: Permanent erosion control measures have yet to be established. Northern Lot (15711 72nd Ave. SWII: Soil Cuts: All excavation cuts remain stable through this date (August 29, 2006). Contractor encountered dense, native sub -grade soils as anticipated by the Geotechnical Report (see photographs). Foundation footings have been recently placed in accordance with City of Edmonds approved plans and inspections. Previously, this engineer recommended a "laid back" upper excavation to minimize erosional sloughing — contractor properly complied. • Temporary Shoring: Not required due to stable dense soils and "back cuf'of upper 3 feet. • Foundation Sub -Grade: Previously verified to easily provide 2,000 p.s.f. bearing capacity. 11� IL -1 "n M 0 0 C 3: M Z Z CO 0 _n n Ld MM a F) ! r 0 0 C C/) M 0 Z 3: Z 3: V5 Z 0 M City �f Edmonds Re: Silver City Construction W August 29, 2006 Page 4 Foundation footings have subsequently been properly placed. Fill Material: None required for geotechnical foundation purposes. Ongoing inspections will evaluate future placement of backfill of stem walls and keystone block wall construction. Z 0 • Subsurface Drainage: Not yet. • Keystone Block Wall: Partially installed for this lot (see photographs). Ongoing inspections to assess: base block foundation placement, block linkage, geo-grid layers as required, backfill and structural fill placement, drainage zone and overall "blending in" with existing slopes. NOTE: This engineer understands that a separate permit from the City of Edmonds has been obtained for the northern portion of the keystone wall. This northern portion is understood to be partially placed on the north neighbor (Allard) property as mutually agreed. It is understood that City of Edmonds has reviewed this mutual agreement and issued appropriate permits. This engineer inspects and makes recommendations regarding geotechnical aspects of the walls — no engineering evaluation of alignment or respective property lines is provided. Temporary Erosion Control Measures: Approved through this date (August 29, 2006). NOTE: Permanent erosion control measures have yet to be established — geotechnical inspections continue. SUMMA : • Geotechnical inspections (ongoing) have verified approved site conditions and practices comply with approved plans. • All foundation work for the 3 residences has been completed as of this date (August 29, 2006). The northern lot has yet to be framed and back filled. • The terraced keystone block walls for the southern and middle lots have been completed and are geotechnical approved pending appropriate permanent erosion control measures on the slopes. Vj M 0 C M M Z 0 n M M 0 0 C M 0 Z Z Z 0 M City of Edmonds Re: Silver City Construction August 29, 2006 Page 5 The entire site (all 3 lots) is geotechnically stable through this date (August 29, 2006). Geotechnical inspections are ongoing. z If there are any questions, do not hesitate to call. M. INAS W-4 x am a 11405 ma C m m z '0" C ONA.L Dennis M. Bruce, P.E. > M 12V2Y Geotechnical Civil Engineer 0 -n -4 DMB:abj M m M cc: Silver City Construction DOU 0,- 0 M C Ch M 0 Ln z m NOTICE: IF THE DOCUMENT IN THIS FRAME IS LESS CLEAR THAN THIS NOTICE IT IS DUE TO THE QUALITY OF THE DOCUMENT. C! A '56 w . . . . . . . . . . . APR-26-2007 06:09A FROM:SILVE CITY CO 425-353-1668 TO:,1257710221 P.1 Dennis M. Bruce, P.E. W -S -CE MZ: B::.: K January 14, 2007 RECEIVED City of Edmonds z I --; Services Division APR 2 6 2007 0 omm ty 121 5�" Ave, N DEVELOPMENT SERVICES CTP. Edmonds, WA 98020 CITY OF EDMONDS Subject: Field Reports — Geotechnical Inspections 16719, 15715, 16711 - 72nd Ave. W, Edmonds, Washington Silver City Construction - 3 New Residences City of Edmonds Permit No. 05-1099 (15719 72 nd Ave. W) This engineering report presents the results of ongoing geotechnical inspections '3 new residences by Silver City Construction at the above addresses. These for the y rn inspections were required as a condition of permit by the Cit of Ed onds. REFERENCES: City of Edmonds approved Project Plans Geotechnical and Inspection Reports by D, Bruce, P.E. City of Edmonds Special Inspection Agreement Site photographs _INSPECTIONS: This engineer has provided and continues to provide on -site geotechnical inspections for the 3 residences listed above. As of this report date (January 14, 2007), all geotechnical inspection items have be . an completed for the 3 houses themselves, However, additional inspections are required for the work pending regarding the completion of the road and driveway entrances. The following summary applies to all 3 lots. Soil C : Previously verified and stable. No adverse impacts had occurred to any of the 3 lots due to excavation. All excavation is stable, NOTE: All excavation for the 3 residences has been properly backfilled and is stable. SOILS . FOUNDATIONS - SITE DEVELOPMENT - INSPECTION - DRAINAGE - DESIGN & PERMIT - LEGAL P.O. Box 55502 , Shoreline, WA 98155 - (206) 546-9217 * FAX (206) 546-8442 M C M M 0 80 C m m z C M M a 0 0 r 0) M 0 Z 7-1 M z -4 X z 0 ITI RPR-26-2007 06:013R FROM:SILVE CITY CO 425-353-1666 T0:4257710221 P.2 City of Edmonds Re: Silver City Construction January 14, 2007 Page 2 RECEIVED APR 2 6 2007 0EVEL41PMENPI fjE a rZ • Temporary Shoring: Previously discuss ry 0 C&,jjR. • Foundation Sub -Grade: Previously verified and approved. All foundation footings ith city of Edmonds approved plans Z have been property placed in accordance w and inspections. 0 • Fill Material: None required for geotechnical foundation purposes. Free draining gravel was used in conjunction with the terraced keystone block walls. All imported gravel was properly placed under this engineer's inspections, • Subsurface Drainaqe: Previously inspected and approved. NOTE; Geotechnical inspections in December 2006 observed localized zones of excessive ponded water in property yard, This engineer advised Silver City construction to place additional "French drains" with proper tight line connections to the existing gutter downspout and storm water system. Follow -UP inspections verified that the additional drainage improvements eliminated the ponded water zones. Keystone Block Wall: See structural detail by Wendell Reed, P.E. This engineer performed on -site inspections to verify the following: Stable soil cuts in dense, native, sub -grade material, Proper placement of compacted crushed rock as a sub -base for the'blocks, proper block placement in accordance with manufacturers guidelines, effective? placement of gravel backfill and geo-grid layers in accordance with structural design (attached). All keystone block walls for the 3 lots have been completed and are geotechnically approved. NOTE: This engineer understands that additional block walls (or equivalent) will be placed during the final grade work of the access roadway. Inspections continue. Temporary Erosion Control Measures: Contractor has continued to properly maintain the rocked construction entrances Tor the 3 residences, siltation fencing, and inlet catch basin "socks". C: M MID 0 0 C M M Z jo C E: co 0 m M 05 0 0 M (A M 0 Z co Z 2 0 M APR-26-2007 06:09R FIRMSILVE CITY CO 425-353-1 668 TO�4257710221 P.3 City of Edmonds Re: Silver City Construction January 14, 2007 Page 3 Landscaping for the 3 residences has been completed (see photographs). There are no exposed earth surfaces on the resident lots themselves, NOTE: Additional grading work and final landscaping has yet to occur for the nd Ave. SW), completion of the access roadway (72 SUMMAR: M All geotechnical inspection items for the 3 residences have been properly completed. 0 Geotechnical inspections continue for the completion of the access road, final M 0 9 rading, slope stabilization walls (as required for the roadway), and permanent 0 C erosion control measures. C 'I, 3: M Ifthere are any questions, do not hesitate to WECE IVE D M Z APR 2 6 2007 M. DEVELOPMENTSERVICES CTA. O"n -n A CITY OF EDMONDS 1151UPINS EM DMB:abj V cc: Silver City Construction zo-'� Dennis M. Bruce, P.E. Geotechnical / Civil Engineer MM a 0 0 c: co M 0 Z :-I X -4 Z Z 0 M Dal I lgg I, Mau 09 07 04:53P D. Bruce, P.E. 206-546-8442 P.1 -15711 ,900,5-&)qq- 1571� -//00 157/6 D nnis M. Bruce, RE- e ngineer April 30,2007 n, Z 0 City of Edmonds ; c -Aces Division communty e 121 e Ave. N Edmonds, WA 98020 FINAL Reports - Geotechnical Inspections Subject 15719,15716 ' 115711 - 72 d Ave. W, Edmonds, Washington Silver City Construction - 3 New Residences City of Edmonds Permit No- 05-1099, etc. This engineering report presents the final results of geotechnical inspections for the 3 new residences by Silver City Construction at the above addresses, RF-FERENC uity of Edmonds approved project Plans Gectechnical and Inspection Reports by D. Bruce, P.E. Site photographs INSPECT As previously reported in the January 14, 2007 inspection report, the majority Of the geotechnical issues had been completed with proper compliance �o approved plans and this engineer's recommendations. engineer has performed additional site Since the January 114j 2007 report, this alized zones of ponded water had been properly mitigated visits to MgEft that the too additional yard drains and proper tight line connections). (using he keystone block walls had been completed and entrance Additionally, all of t areas "cleaned up�'to fie in with the roa4 extension. 61!��ttEo It is understood that the City of Edmonds will foll with specific n 'A' it inspections for the preparation and construction of 72 1 hus, this repo deals exclusively with the 3 new residences and their specific lots. SOILS - FOUNDATIONS . SITE DEVELOPMENT - INSPECTION - DRAINAGE - DESIGN & PERMIT' - LEGAL P.O. Box 55502 - Shoreline, WA 98155 (206) 546-9217 - FAX (206) 546-8442 3: C m mo 0 80 C m m Z 0-4 C/) 0-n 0 0 C ca M Co M 0 Z r- ;D Z Z 0 Th Mau 09 07 04:53p D. Bruce, P.E. 206-546-8442 P.2 City of Edmonds Re: Silver City Construction April 30, 2007 Page 2 A summary of all inspection items: Soil Cuts: All excavation for this site was stable throughout the project. All soil cuts have been properly backfilled and stabilized. Approved. Z Temporary Shoring: Not required. 0 Foundation Sub -Grade: All verified and approved. :;:9 Fill Material: No fill material required for the house foundations. 0 m C Proper free -draining gravel was utilized in the drainage zone backfill of the M 0 T- 0 keystone block walls. All material quality and placement is approved. C Subsurface Drainage: All subsurface drainage has been properly installed in M M Z -1 accordance with City of Edmonds approved plans and this engineer's on -site C recommendations. Cn Keystone Block Wall: The 3 new homes incorporated extensive use of keystone 0 -n nT block walls in a terraced fashion (see photographs), m This engineer provided frequent on -site inspections to verify base block m a Cft 0 r- embedment, proper better, drainage zone and overall Wending in" with the . T existing topography. c: 9 CO All keystone block walls are approved as constructed. M 0 Z NOTE: As previously stated, the keystone block walls provide excellent slope and erosion stabilization. These walls are not retaining walls, therefore Z homeowners should be wary of placing any heavy loading at the top or near the top of the keystone block walls. Erosion Control Measures Contractor properly maintained temporary erosion Z control measures throughout the project. No adverse erosional impacts were 0 observed through this date (April 30, 2007). m Permanent erosion control meas6res (plantings, completion of keystone block walls, lawn placement, beauty bark, etc.) have been completed. There are no exposed earth surfaces on any of the 3 lots. Ma-d 09 07 04:53P D. Bruce, P.E. 206-546-8442 p.3 City of Edmonds Re: Silver City Construction ApH130,2007 Page 3 As stated, it is understood that City of Edmonds will inspect and be responsible I aspects of the road extension and for the geotechnical and erosion contro paving itself. z SUMMARY. 0 s for the 3 individual residences have All special geotechnical inspection item M pleted and are geotechnically. approved. been property com It is understood that City of Edmonds will be responsible for the geotechnical Ui -4 aspects of the road construction and associated slope issues. Orn C 0 mo 0 This report completes special inspection duties by D. Bruce, P.E. 40 C m If there are any questions, do not hesitate to call. m C z 0 -n m m 065 117405 0 0 ONA (0 C Cn Dennis M. Bruce, P-E. MO Zr r- Geotechnical Civil Engineer M DMB:abj CC*. Silver City Construction z 0 m DEPARTMENT OF BUILDINGS PER INTERNATIONAL RESIDENTIAL CODE SECTION R110 L" AT: 16711 — 72" Avenue W Building Permit #: 2006-0283 WE V R I A occupancy established by this certificate: R3 Dwelling Units: No. Stories: 2 Basement: _NIA Type of Construction: VB Owner of building: Silver City Construction, Inc. The Single Family Residence at 15711 — 72 nl.A_venUeW has been inspected and approved complying with the requirements the 2003 edition of the International Residential Code as adopted by the City for the group and division of occupancy and the use for which the proposed occupancy is classified. Issued this 3rd day of September, 2007 Chief Building Official By:_IBL— Any change of occupancy or use requires a building permit and a now Certificate of Occupancy Issued by the City of Edmonds Building Official. Permit Inspection Details Permit: BLD20060283 PrRMITI 1001 - E-Eroslon Controllmotillizaition, cornple "Y�� 011128i2607 Sibrel 0 Y Total Time: 0 1013-E-StorinTightlihe i Compliate� �y 09128i2OO6 MCCONNEL 10 House fightfine connected to detention. Okay to backfill. N 08/28W2007 Sibrel 0 Y Total Time: 10 1015-.E.StormDeteritionSysitem' z 09/26/2066 $!or-] 30 detention pipe not adequately mudded N 0 09/2612006 Sibrel 30 need it connect insp - at.rm ekt-tion. OK to backfill N M 09/26/2006 MCCONNEL 10 Need to cut pipe Inside control CB & put dser on control"T". N Detention outfall connected to City ston. :4 *ii I 08/2812007 Sibrel 0 rn -4 Total Time: 70 m "EMeterS 1034 ervice Lin Com tete�?'. M 09128/2006 MCCONNEL 15 Need to ground at house & met., and connect at meter. N 0 -40 0912812006 MCCONNEL 5 Ground at house Okay. IN 0 C 08/28/2007 Sibrel 0 Y pill m z Total Time: 20 ' Compile ? to y z 1077 - E-Engineerin 9 Final 1 08128/2 007 Sibrel 45 ON to Final Y Total Time: 45 1106 - B-Setbacks . -16t' , CoTP e? , I 1 "Y" 0 -n -n 6/05/2006 MS 20 SETBACK$ APPROVED PER STRUNG PROPERTY LINES Y Total Time: 20 m m 1108 ..g.'Footings a 0 0711412006 MS 20 FOOTINGS APPROVED y 0 C Total Time: 20 1110 - B-Foundation Wall e compl te? M 0 Z 0S10912006 MS 2 0 FOUNDATION APPROVED Y Total Time: 20 1122 - B-First Floor Framing cc 05/31/2006 MS 20 FIRST FLOOR FRAMING APPROVED y > z Total Time: 20 1126 - B-Plumb Rough In Complete? y 08/0412006 MS 20 PLUMBING APPROVED y z Total Time: 20 1 '128 - B-Gas Test/Pipe Complete? 08/04/2006 MS 20 GAS TEST AND GAS PIPING APPROVED Y IT! Total Time: 20 1132 ..B-Exterior Sheathing Complete? y 07114/2006 MS 25 EXTERIOR SHEATHING APPROVED Y Total Time: 25 1136 - B-Shear Nailing Complete?� Y 0810412006 MS 20 SHEAR APPROVED Y Total Time: 20 1140 - B-Height Verification Complete? Y 6/22/2009 11:44:45 AM Page I of 2 0810412006 MS 25 HEIGHTAPPROVED y Total Time: 25 11142 w B-Fiarnin6 . .. .. ....... ... 08104/iOO6 W 25 FRAMING APPROVED y Total Time: 25 1144. B-W A all Insulation C 08/2212006 MS 20 INSULATION APPROVED y Total Time: 20 FloorInsula Ion au k, 111�67B-t Ic onap ..... 0812212006 MS �l 20 INSULATION APPROVED y Total Time: 20 114&- B-Cellinq lnsulatlon/Caulkill,"�� 0 z 0910412007 Read.In 20 APPROVED y Total Time: 20 1160-64fieet; kiliall COMM 09/04/2007 Readwin 20 SR WAS NEVER CALLED FOR. VERIFIED ONE SECTION OF 518- IN GARAGE. y Total Time: 20 in 11158:m B BUildin ;�'o I N 0 'y 09/0412007 Readwin 20 WROTE CORRECTION N M 0910612007 ReadWIn 20 APPROVED y C, 11 IT! 0 -4 0 Total Time: 40 0 C: Total Inspections; 27 Total Time: 480 ITI M 10 0 -n -n M M 0 0 c ITI Q 0 Z 0 IT! 6/22/2009 11:44:45 AM Page2of2 RECORD OF IN SPECTIONS INSPECTOR DATE APPROVED SETBACKS ................... FOUNDATION: Footing ................. MIS Wall ............... Pier/Porch ................. Retaining Wall ........... z Slab Insulation .......... PLUMBING: Underground ............. Rough -in ................ IT Commercial Final ITI 0 0 HEATING: -4 x IT ITIZ Gas Test .................... vv� 10 Gas Piping ................. -4 Equipment . ................ Commercial Final 0 -n -n EXTERIOR SHEATHING Z2 __4 :C M M NAILING ............... oc� a 0 r- FRAMING ............. 0 M C C/) FIRST FLOOR FRAMING vv\ M 0 Z INSULATION ............... Floor Insulation ;U Wall Insulation ........... Ceiling Insulation SHEETROCK NAILING z SPECIAL INSPECTION Lo 0 M MISCELLANEOUS .......... FINAL APPROVAL FOR OCCUPANCY 55 Fk6zx (l, 6 Z3,7 COM EkG&Z) to 62 qL) 7,3 V/ (,'0 —oz-