The URL can be used to link to this page

Home My WebLink AboutBLD2024-00943 ATF Retaining Walls, Specs - BLD Inspections - 12/30/2024 MASON COUNTY 615 W.Alder St.Bldg 8,SHELTON,WA 98584 mjk I COMMUNITY SERVICES SHELTON:360 427-9670,EXT 352 BELFAIR:360-275-4467,EXT 352 Building,Planning,Environmental Health Community Health ELMA:360-482-5269,EXT 352 www.co.mason.wa.us INSPECTION CARD AND CERTIFICATE OF OCCUPANCY— To schedule an inspection call or visit http://www.co.mason.wa.us/community-services/bid-inspection Permit Number BLD2024-00943 Date Issued 11/19/2024 Issued B Project ATF-RETAINING WALLS(4 WALLS) Site Address 200 NE RAINTREE LN Applicant CALL JEFFREY&CARMEL Contractor BADGER EXCAVATION LLC Contractor Phone 360-329-2385 Primary Code UPC IBC,IRC,IFC,IEC,IMC,& Type Permit Type RETAINING WALL,DECK- Occupancy RESIDENTIAL -APPROVED PLANS MUST BE ONSITE FOR ALL INSPECTIONS. -DO NOT PROCEED BEYOND EACH STAGE OR COVER WORK UNTIL APPROVAL IS GRANTED. -THIS CARD MUST BE POSTED IN A CONSPICUOUS LOCATION,FRONT OF THE PREMISES IS BEST FOR MAKING ENTRY. -ALL PERMITS EXPIRE 180 DAYS AFTER THE PERMIT IS ISSUED OR 180 DAYS AFTER DATE OF LAST INSPECTION. -OWNER/AGENT IS RESPONSIBLE FOR REQUESTING ALL INSPECTIONS THROUGH FINAL INSPECTION. **THIS STRUCTURE MAY NOT BE USED OR OCCUPIED UNTIL ALL APPROVALS ARE GRANTED.** PRIOR TO CALLING FOR FINAL INSPECTION,ALL CONDITIONS OF THE PERMIT MUST BE MET Public Works Access/Driveway Other Health Septic Well Deptartment Planning Site Inspection Department Fire Marshall Fire Apparatus Access Fire Sprinkler Auto Fire Alarm Hood and Duct Other Final Building Building Official: Community Services Designee Department Concrete Setbacks o- 1 Slab Footing Perimeter Point load Footing Footing Interior Footing Decks/Porches Foundation Stem Walls Other Rough-In Groundwork Plumbing Framing Groundwork Mechanical Plumbing Groundwork Gas Pipe Mechanical Gas Piping Shear Wall Nailing Underfloor Other Insulation Slab Ceiling Floor Vaulted Ceiling Walls Vapor Barrier Other Wallboard Interior Wall Brace Panels Fire Walls Nailing Other Final Building Manufactured Setbacks Setup Home Concrete Foot/Runners Final /=jp- 4 t Other BLD2024-00943 Z _ LA ` �,• t�Q r;A't�, Al��5 C� /�� n� ! V f�� ?'VCl"L.17i �TLr.�Ji��2•� V;Jy�� lIA APPRcOVI�D _ MASON COUNTY DCD PLANNING SITE PLAN REQUIRED TO BE ON SITE CHANGES SUBJECT TO APPROVAL t By: � Date: 10/23/2024 5ct� This permit is for retaining walls only. EH APPROVED t Rhonda Thompson 10/04/2024 / pp EH Setbacks a�b�x A.) Drainfield/Reserve requires 10'setback from footingtfoundations B.)Septic tank(s)requires 5'setback from all footing/foundations C.)No foundation/Perimeter Drains within 30ft,downgradient of Drainfield/Reserve area D.)No Cut Bank(s)(greater than 5ft and over 45 degrees)within 50ft,down gradient of Drainfield/Reserve area i ' ✓ ��) CL s ( <5ft high �6 Vale-\ ' (3D Sol gca-S iv-, PLANNING SETBACKS Nl Setbacks measured from farthest � y� projection of the structure ?c� � Rear: 50' (from OHWM)** t�sa,K� "'� —7 -Ao C\QO• *Subject to EH Setbacks t **No clearing within 35'of lake. Retaining wales must meet lake setback but retaining walls close %i '`.a!i-1171 to grade do not need to meet property line setbacks CWA CONSUIXAN'rs, P.s. Plans to be kept on site STRUCTulZAI. ENGINEERING These plans must be on the job site BUILDING CODE CONSULTANTS for inspection 5G751 .0 ua��si�Ruul.l'txtChLh;url, hl A 9S+(�(� (360)871-5133 PAS L3l><))871- (z•,I-M,fil:chuck(ir?c�+nconsuli ufl�afel STRUCTURAL CALCULATIONS Stacked Block Retaining Wall 2021 IBC .lob Title: Call - Retaining Wall Changes Raintree Lane Submit changes for approval Tahuya, WA prior to performing work SEISMIC DATA Seismic Design Category D Site Class D MUST MEET ALL CURRENT WASHINGTON STATE CODES RETAINING WALL Allowable Soil Bearing 2000 PSF ASSUMED EFP 40 PCF (Phi Angle 32 degrees) Seismic Dynamic Force 81-1 (Applied to walls> 6') IBC Section 1803.5.12 Safety Factor without seismic 1.5 OTM/1.5 SLIDING Safety Factor with seismic 1.1 OTM/1.1 SLIDING IBC Section 1807.2.3 November 4, 2024 Must provide compaction SOIL BEHIND WALL TO BE report for all layers. COMPACTED TO 90 % RC t -,(; t Engineering and Architectural Drawings Construction must match all designs and apecifications of the vt Architectural and or the Engineering requirements OR a stamped letter of l\ approval must be provided from the design professional responsible for .. ,�.�ty the work that has been altered.—NOTE:Structural engineering shall .l.t, 7 . supersede Mason County"Typical"notes for structural items." 1' 1/04/2024 MUST COMPLY WITH PERMIT Reviewed for Code Compliance CONDITIONS Mason County Building Department Trish Woolett From: chuck@cwaconsultants.net Sent: Monday, November 4, 2024 10:44 AM To: Trish Woolett Reviewed for Code Compliance Cc: 'Phillip Olson' Mason County Building Subject: RE: Call Retaining walls Department Attachments: Call Retaining Wall PLANS 11-4-24.pdf Ij Caution: External Email Warning!This email has originated from outside of the Mason County l' Network. Do not click links or open attachments unless you recognize the sender, are expecting the email, and know the content is safe. If a link sends you to a website where you are asked to validate using your Account and Password, DO NOT DO SO! Instead, report the incident. Trish Thank you for the email. All is well here but time is flying by. 1. See attached stamped plans 2. The 12" embedment is intended to minimize frost heave for solid concrete footing/walls. The typical segmented retaining walls and the rock-based footings are more flexible and are not subject to frost heave. This type of footing is typical of all segmented retaining walls and, in my professional opinion, is acceptable. 3. The ground behind the wall, where the geogrid is required, should be compacted to 90% relative compaction. Engineering and Architectural Drawings Thanks Construction must match all designs and apecifications of the Architectural and or the Engineering requirements OR a stamped letter of approval must be provided from the design professional responsible for Chuck the work that has been altered."`NOTE:Structural engineering shall supersede Mason County"Typical"notes for structural items."` From:Trish Woolett<TW@masoncountywa.gov> Sent:Tuesday, October 29, 2024 2:11 PM To: chuck@cwaconsultants.net Subject:Call Retaining walls Hope this email finds you well. I have reviewed the supplied document for the Call retaining walls located at Raintree Lane,Tahuya WA.The following items have been identified as deficient: Please address and resubmit to me. 1. The construction plan pages must be stamped by the design professional. 2. According to the geo report page six section 5.1.1.foundation must be a min or 12" below natural ground surface. Please address this in design.These are after the fact walls it is unclear if the wall have been built accordingly. 3. The Geo-grid has a compaction requirement, Please address this in the specifications on your design. 1 o , ,y� nginegring ail"rchitectural Drawings ' \ C struction rtu{st match all'x signs and apecifications of the _ Architect ral and or the`fi gineering r$gVirements OR a stamped letter of \w\ approval st be provided om the design professional responsible for he work t t has been alter NOTE:'�tructural engineering shall supersede as on County" *NOT notes'tor structural items.— 3 t' 1 1 ` 6 Retaining -� Retaining Wall #2 \ Wall #1 I tk� I 8 r- 61017 ! i '%V c 3 N PROPOSEDA SPRINKLERE / 6 t 60 ? 6 Taper top of retaining wall down to ground level. Maintain required clearance to property line Plans to be kept on site These plans must be on the job site MUST COMPLY WITH PERMIT for inspection CONDITIONS November 4, 2024 Must provide compaction SOIL BEHIND WALL TO BE ~ report for all layers. COMPACTED TO 90 % RC WALL #1 TYP 24X24X48 BLOCK ' 5 BLOCKS - 10' MAX VERTICAL OFFSET 3/4" PER BLOCK t Retaining wall heights vary. Upper 3 blocl�s do not require geogrid. Changes I Submit changes for approval prior to performing work I f 4.0' MIN (TYP.) , GEO-GRID (TYP.) g �-- 4.0' MIN (TYP.) UNDERDRAIN PIPE, 4" MIN 0 WITH GRAVEL I. ' � 11/04/2024 BACKFILL FOR DRAIN &GEOTEX TILE FABRIC , , ,S,, 4" MIN DEPTH CSTC GRAVEL BASF 1 Engineering and Architectural Drawings Construction must match all designs and apecifications of the Reviewed for Code Compliance Architectural and or the Engineering requirements OR a stamped letter of approval must be provided from the design professional responsible for Mason County Building the work that has been altered.—NOTE:Structural engineering shall supersede Mason County"Typical"notes for structural items.— Department Engineering and Architectural Drawings Construction andortheEngineerin requirementns and s OR astamons stamped MUST COMPLY WITH PERMIT Architectural and or the Engineering requirements OR a stamped letter of approval must be provided from the design professional responsible for the work that has been altered.—NOTE:Structural engineering shall CONDITION S supersede Mason County"Typical'notes for structural items."` Must provide compaction 01 November 4, 2024 report for all layers. SOIL BEHIND WALL TO BE COMPACTED TO 90 % RC 2:1 Backslope Reviewed for Code Compliance Mason County Building Department t� t; WALL #2 2.0' MIN r TYP 24X24X48 BLOCK 4 BLOCKS - 8' MAX VERTICAL OFFSET 3/4" PER BLOCK ic t 4.0' MIN (TYP.) GEO-GRID (TYP.) �., 4.0' MIN (TYP.) -9, R_, : 11/04/2024 iUNDERDRAIN PIPE, 4" MIN 0 WITH GRAVEL BACKFILL FOR DRAIN &GEOTEXIILE FABRIC _.z_ 4 4"MIN DEPTH CSTC GRAVEL BASE Changes Planis to be kept on site Submit changes for approval These plans must be on the job site prior to performing work for inspection Project Title: Call RW Raintree Lane Chuck Williams PE SE Plans to be kept on site Engineer: -------- These plans must be on the job site Project ID: for inspection Project Descr: Printed:18 NOV 2023,12:36PM Segmental Retaining wall Project File:phll glenn cove 4-9-23_backup_2.ec6 UC#:KW-06019118,Build:20.23.08.01 CWA Consultants (c)ENERCALC INC 1983-2023 Criteria ------ Wall height(retained height) 10.00 ft Backfill slope Level Backfill angle 0.0 deg i Embedment 1.0 ft Retaining wall heights [Sall data - vary. Upper 3 blocks do External Soil,Phi_a 35 deg not require geogrid. External soil density(In sitta) 120 pcf Internal Soil,Phi_i 35 deg Internal soil density 120 pot Wall Soil Friction Angle 0 deg K_a(Horiz) 0.21 4 5' min--► K_AE(Horiz) 0.32 Thumbnail ---__ Loading � Segmental block data Vendor selection Allan Block Dead load 0 psf Vendor ESR ESR-4206 Live load 0 psf Block selection type AB Fieldstone 812 LAU Seismic Factor,A 0. Block height 24.00 in aipha(u_1) 1697.30 lb d_seismic 0.00 in Block depth 24.00 In tan(lambda_u1) 1.38 Offset per block 0.84 in Max_1 5830.00 lb Stability Batter angle 2.00 deg alpha(u_2) 1697.30 lb Base length 6.00 ft Wall weight 150.00 psf tan(lambda_u2) 1.38 Base Sliding Force(w/o Seismic) 1,179.97lb Max-2 5830.00 lb Base Resisting Force(w/o Seismic) 3,897.46 lb Base Sliding(w/o Seismic)FS 3.30 Geogrid material Base Sliding Force(wl Seismic) 1,664.47 lb Vendor Selection Strata Systems Base Resisting Force(w/Seismic) 3,944.08 lb Geogrid type SG 200 Base Sliding(w/Seismic)FS 2.37 LTDS 1,919.00 Ib/ft Overturning Moment(w/o Seismic) 3,933.24 ft Ib Ci 0.90 RF_CR 1.55 Resisting Moment(w/o Seismic) 19,758.29 ft Ib alpha_u 1,69 .301b Overturning(w/o Seismic)FS 5.02 tan(lambda_u) 1.38 Overturning Moment(w/Seismic) 6,355.72 ft lb Max 5,830,001b Resisting Moment(w/Seismic) 20,169.42 ft lb alpha_cs1 1,327,501b alpha_cs2 1,327.50lb Overturning(w/Seismic)FS 3.17 tan(lambda_csl) 0.19 tan(lambda_cs2) 0.19 Max-1 1,813.001b Max-2 1,813.00lb Applied Bearing Pressure(w/o Seismic) 978.89 psf Allowable Bearing Pressure(w/o Seismic) 1,500.00 psf Factors of safety Bearing(w/o Seismic)FS 1.53 Failure Mode Static Condition Condition w/Seismic Applied Bearing Pressure(w/Seismic) 1,148.41 psf Min MinAcceptable Actual Status Acceptable Actual Status Allowable Bearing Pressure(wl Seismic) 1,500.00 psf Bearing(w/Seismic)FS 1.31 Base Sliding 1.50 3.30 i t;... 1.10 2.37 (I`ri Overturning 1.50 5.02 OK 1.10 3.17 OK Eccentricity of Vert.Force(w/o Seismic) 0.16 ft Bearing 1.50 1.53 OK 1.10 1.31 OK Effective Base Width (w/o Seismic) 5.69 ft Internal Sliding 1.50 7.25 OK 1.10 4.86 OK Eccentricity of Vert.Force(w Seismic) 0.55 ft Tensile Overstress 1.50 3.10 OK 1.10 1.10 OK Effective Base Width (w Seismic) 4.90 ft Pullout 1.50 1.53 OK 1.10 3.02 OK Connection 1.50 2.51 OK 1.10 1.38 OK CSf146 Celladek Project Title: Glen Cove Retaining Walls Chuck Williams PE SE Plans to be kept on site Engineer: - These plans must be on the job site Project ID: for inspection Project Descr: Printed:18 NOV 2023,12:36PM Segmental Retaining Wail Project File:phil gienn cove 4-9-23_backup 2.ec6 LIC#:KW-06019118,Build:20.23.08.01 CWA Consultants c)ENERCALC INC 1983-2023 Wall Analysis Table: Layer Height Trib Depth Tension From Surcharge Static Total LTDS LTDS Total Tension FS Tensile Overstress ft Height to Midpoint Soil DL LL Fg (Seismic) (W/seismic),Fi (Static) w/Seismic) 3 6.00 5.00 4.00 515.5 0.0 0. 515.5 1,919.0 1,238.1 986.3 3.72 1.26 21 4.00 2.00 6.00 309.3 0.0 0.0 309.3 1,919.0 1,238.1 773.9 6.20 1.84 11 2,00 3.00 8,00 618.6 0.0 0.0 618.6 1,919.0 1,238.1 1,125,5 3.10 1.10 Wall Analysis Table Continued: Layer Pullout FS Pullout Connection FS Conn Internal Sliding FS Internal Internal Sliding FS Internal Strength (Static) (Seismic) Strength (Static) (Seismic) Force(Static) Sliding(Static) Force(Seismic) Sliding(Seismic) 3 740.2 1.44 3.02 1,439.8 2.79 1.4 6 188.8 18.68 358.8 9.86 2 2,0 44.5 6.5 112.45 1 9595.9 4.84 2.22 424.8 10.56 692.1 6.49 1 3,246.4 5.25 19.86 1,552.1 2.51 1.38 755.2 7.25 1,128.0 4.86 ASSUMPTIONS AND CRITERIA USED 1. References used include Design Manual for Segmental Retaining Wails,V Edition, by NCMA. 2. Blocks are all same size and uniform offsets(batter)for full wall height. 3. Coulomb earth pressure theory used for earth pressures and failure plane angle. 4. Refer to geotechnical report for backfill material,compaction,and other design data and recommendations. 5. Cap blocks If used are above the retained height and are neglected In this design. 6. Geogrid LTDS and connection values for block vendors obtained from ICC Evaluation Service(ES Legacy Reports)or as provided by vendors.Since these may change or be updated,verification of values is recommended, 7. Block sizes obtained from vendors'literature and may vary with locality. 8. Geogdd layers are equally spaced vertically,all same length,and laid horizontally. 9. Average weight of block and cell infitl assumed to be 120 pcf. 10. See vendor web sites(on Input screen)for more Information and specifications. 11. Venda specifications or project specifications,whichever is most restrictive,to be followed for construction procedures. 12. Add notes and details for proper drainage. 13. See User's Manual Design Example#10 for methodology and sample verification calculations. 14. Final design responsibility Is with the project Engineer-of-Record. BLD2024-00943 CA 8Q H,A1 V 1 !i Y)17 �X 2-CC EA APPIR'OVED MASON COUNTY DCD PLANNING 16 5iSITE PLAN REQUIRED TO BE ON SITE CHANGES SUBJECT TO APPROVAL By: Date: 10/23/2024 This permit is for retaining walls only. EH APPROVED Rhonda Thompson 10/04/2024 EH Setbacks A.) Drainfield/Reserve requires 10'setback from footing/foundations B.)Septic tank(s)requires 5'setback from all footing/foundations 15' C.)No foundation/Perimeter Drains within 30ft,do.wngradient of Drainfield/Reserve area D.)No Cut Bank(s)(greater than 5ft and over 45 degrees)within 50ft,down gradient of Drainfield/Reserve area Ci A V-'A U vide corta f-1- 17-! - ption mv,-�Q-4— for all)4yek W 10 X-L,7 -0 ATIT Ta=L, A -5U Must provide verification or exposed for inspection 6 B= PLANNING SETBACKS Setbacks measured from farthest iD"D projection of the structure Rear: 50' (from OHWM)** -A-o C\W- *Subject to EH Setbacks **No clearing within 35'of lake. Retaining wales must meet lake setback but retaining walls close, , to grade do not need to meet property line setbacks .................... w Mason County Mason County - Division of Community Development 615 W.Alder St. Building 8 Shelton, WA 98584 360-427-9670 ext 352 www.masoncountywa.gov B DD2024-00943 RETAINING WALL, DECK- RESIDENTIAL PROJECT DESCRIPTION: ATF- RETAINING WALLS (4 WALLS) ISSUED: 11/19/2024 SITE ADDRESS: 200 NE RAINTREE LN TAHUYA EXPIRES: 05/18/2025 PARCEL: 223315200035 APPLICANT: CALL JEFFREY&CARMEL OWNER: CALL JEFFREY&CARMEL 2407 80TH ST E 2407 80TH ST E TACOMA,WA 98404 TACOMA,WA 98404 253-209-8717 GENERAL CONTRACTOR'S LICENSE: BADGER EXCAVATION LLC License: BADGEEL811 OJ PO BOX 377 Expires: 09/14/2025 OLALLA,WA 98359 360-329-2385 VALUATIONS: FEES: Paid Due Retaining Walls 1335.50 $30,716.50 Building Permit Fee $485.92 $0.00 Geo-Tech/Stormwater Review $300.00 $0.00 State Fee-Residential $6.50 $0.00 Planning Residential Review $275.00 $0.00 Fee Technology Surcharge $16.04 $0.00 Plan Check Fee $315.85 $0.00 Building Plan Review/Change of $135.00 $0.00 Use-Onsite Sewage Total: $30,716.50 Totals : $1,534.31 $0.00 REQUIRED INSPECTIONS Setback Inspection 3rd Party Inspection Report Footing Inspection BLD-Final Inspection CONDITIONS Printed by:Amber Selby on:11/19/2024 03:04 PM Page 1 of 4 Mason County Mason County - Division of Community Development 615 W. Alder St. io Building 8 Shelton, WA 98584 360-427-9670 ext 352 www.masoncountywa.gov RETAINING WALL, DECK- RESIDENTIAL BLD2O24-00943 * Disclaimer: Mason County does not require a survey to obtain a building permit. As a result, site plans may not reflect accurate data. It is the applicant's responsibility to comply with setback requirements. * All other necessary permits from Mason County, Washington State, Federal Agencies, and/or other agencies/groups that are required for this proposed development and construction must be obtained PRIOR TO DEVELOPMENT AND CONSTRUCTION. * All surface water and potential runoff must be controlled on site and shall not adversely affect any adjacent properties nor increase the velocity flow entering or abutting to any state or county culverting/ditching system or road way. * Approved per dimensions and setbacks on submitted site plan. Setbacks are measured from the farthest projection of the structure. Front setbacks are measured from the front lot line or road easement boundary, whichever is closer. * Provisions for surface/subsurface drainage control must be implemented with new construction or development on site and MUST NOT adversely impact adjacent parcels. Under the requirements of Mason County Stormwater Ordinance, either private ditches and drains will meet requirements of the stormwater ordinance or prior approval will be granted to use an existing utility and drainage easement dedicated for that specific purpose. For further information regarding this ordinance contact the Mason County Public Works Department prior to construction at Ext 450 * Contractor registration laws are governed under RCW 18.27 and enforced by the WA State Dept of Labor and Industries, Contractor Compliance Division. There are potential risks and monetary liabilities to the homeowner for using an unregistered contractor. Further information can be obtained at 1-800-647-0982. The person signing this condition is either the homeowner, agent for the owner or a registered contractor according to WA state law. * Concrete used for basement walls,foundation walls, exterior walls, porches, carport slabs, steps exposed to the weather, garage floor slabs and other vertical concrete work exposed to the weather shall have a minimum compressive strength of 3000 psi(IRC Table R402.2). * OWNER/BUILDER acknowledges submission of inaccurate information may result in a stop work order or permit revocation.Acknowledgement of such is by signature below. I declare that I am the owner, owners legal representative, or contractor. I further declare that I am entitled to receive this permit and to do the work as proposed. I have obtained permission from all the necessary parties, including any easement holder or parties of interest regarding this project. The owner or authorized agent represents that the information provided is accurate and grants employees of Mason County access to the above described property and structure(s)for review and inspection. This permit/application becomes null & void if work or authorized construction is not commenced within 180 days or if construction work is suspended for a period of 180 days. PROOF OF CONTINUATION OF WORK IS BY MEANS OF INSPECTION. INACTIVITY OF THIS PERMIT APPLICATION OF 180 DAYS WILL INVALIDATE THE APPLICATION UNLESS OTHERWISE APPROVED. * All building permits shall have a final inspection performed and approved by Mason County Building Department prior to permit expiration. The failure to request a final inspection or to obtain approval will be documented in the legal property records on file with Mason County as being non-compliant with Mason County ordinances and building regulations. * The stamped approved site plan is required to be on-site for inspection purposes. If an inspection is requested and the approved site plan is not on site, approval will not be granted. In addition, a re-inspection fee (refer to current fee schedule, minimum 1 hour)will be charged and shall be collected by the Building Department prior to any further inspections being performed or approvals granted. * All construction must meet or exceed all local and state ordinances in addition to the International Codes requirements as adopted and amended by Mason County and the State of Washington. Occupancy is limited to the approved and permitted classification. Any non-approved change of use or occupancy would result in permit revocation. * Owner/Agent is responsible to post the assigned address and/or purchase and post private road signs in accordance with Mason County Code 14.28 and 14.17. * Pressure treated wood manufactured after January 1, 2004 may contain high concentrations of copper which could quickly corrode metal fasteners, connectors, and flashing. Install metal connectors approved for contact with the new types of pressure treated material. Printed by:Amber Selby on:11/19/2024 03:04 PM Page 2 of 4 a � Mason County Mason County - Division of Community Development 615 W. Alder St. Building 8 Shelton, WA 98584 360-427-9670 ext 352 www.masoncountywa.gov RETAINING WALL, DECK- RESIDENTIAL BLD2024-00943 * Retaining walls needed to support a surcharge such as structures, roads, or to support slopes, shall require a separate building permit and approval prior to construction of the retaining wall. * All permits expire 180 days after permit issuance, or 180 days after the last inspection activity is performed.The Building Official may grant one or more extension of 180 days, upon the receipt of a written extension request prior to permit expiration. Letter must indicate that circumstances beyond the control of the permit holder prevented action from being taken. * All changes to"approved"building plans that effect compliance with the international codes as amended and adopted, or any other Mason County ordinance or regulation, must be reviewed and approved by Mason County prior to construction. * Landings and stairs must meet the same setback conditions as any permitted structure; and, must be shown on your site plan. Please check your"Approved Site Plan"to ensure these structures are shown and meet the setback conditions listed. * The plan review check list and corrections are part of the approved plans and must remain attached. It is the responsibility of the applicant, owner or contractor to make the required corrections indicated on the plans. Once the plans are marked "APPROVED", they shall not be changed or altered without authorization from the Building Official. The permit holder is responsible to retain the complete approved set of plans on site for the duration of the project. Failure to comply and/or removal of approved documents will result in failure of required building inspections. * All property lines shall be clearly identified at the time of foundation inspection. * CONSTRUCTION PROCESS TO BE FIELD CORRECTED AS REQUIRED PER MASON COUNTY BUILDING DEPARTMENT AND THE ADOPTED BUILDING CODE. The construction of the permitted project is subject to inspections by the Mason County Building Department. All construction must be in conformance with the international codes as amended and adopted by Mason County. Any corrections, changes or alterations required by a Mason County Building Inspector shall be made prior to requesting additional inspections. * All RED stamped approved plans are required to be on-site for inspection purposes. If an inspection is called for and plans are not available on site, then approval will not be granted. In addition, a re-inspection fee (refer to current fee schedule, minimum 1 hour)will be charged and must be collected by the Building Department prior to any further inspections being performed or approvals granted. * The foundation/footing must be placed on undisturbed, firm-native soil. Proper frost depth, minimum 12 inches, shall be observed below grade in undisturbed soils. * Applicant/Owner assumes all responsibility if On-site Sewage Components are encumbered. A.) Drainfield/Reserve requires a 1Oft setback from all footing/foundations. B.)Septic tank(s) requires 5ft setback from all footing/foundations. C.) No foundation/Perimeter Drains within 30ft, down gradient of Drainfield/Reserve area. D.) No Cut Bank(s)(greater than 5ft and over 45 degrees)within 50ft, down gradient of Drainfield/Reserve area. * Per Geotech: Engineered backfill shall be compacted lifts of about 12 inches. Each lift shall be uniformly compacted to at least 85% but no more than 90%. * Per Geotech, if building or planning loads are located within retaining wall backfill, 90% compaction is required. Heavy equipment shall be located at a distance of 1/2 the wall height. * Buffers to critical areas (streams, shorelines, wetlands, slopes)shall be retained in natural vegetation or a legally established non-conforming condition. Removal of natural vegetation in the buffer is prohibited. * Must meet 50'setback from lake OHWM * This permit is for the retaining walls ONLY Printed by:Amber Selby on:11/19/2024 03:04 PM Page 3 of 4 Mason County Mason County - Division of Community Development 615 W. Alder St. Building 8 Shelton,WA 98584 360-427-9670 ext 352 www.masoncountywa.gov RETAINING WALL, DECK- RESIDENTIAL BLD2024-00943 The approval of this project is subject to the recommendations and specifications outlined in the attached geotechnical report or assessment.All applicable recommendations and specifications shall be applied to the development on this site. Any deviation requires stamped written approval from the registered design professional responsible for the report/assessment, and may require special inspection by same. Structures and/or land modifications (grading, cuts, fills, etc.) required in the geotechnical report/assessment, may require a separate permit.The geotechnical report/assessment shall remain attached to the approved building plans. I hereby certify that I have read and examined this application and know the same to be true and correct. All provisions of Laws and Ordinances governing this type of work will be complied with whether specified herein or not. he granting of a permit does not presume to give authority to violate or cancel the provisions ny er state oc gulating construction or the performance of construction. Issued By- Contractor or Authorized Agent: Date: " 'Z Printed by:Amber Selby on:11/19/2024 03:04 PM Page 4 of 4 cE BUILDING 3 �01� ti ........... 0Y.; 5r7l +{ S .ygj,A►.�� `',�y,� � � �� - 'mot. J _. .. " r., ' �+' t�'=-•mac, .. .�'.�y i :,,, yip t, Ir 'Al 10 r kip '14 " -4F Or NI lb- w t __ .-__. ,,.-_•J-•w..,- �� fir,. � 1.:,e.�.a � ,,.k,; t._ k 7 4� . ��F t M1* e r`_fir _;�'{•i,,. .,Y r f , . r- 's lop cr •r• X a 't wat `' a 1 4 k ro•" ��441 tiA40 ' y vu t �1 a, vx - •a ° t } i •a . r i 1 yy - .n.....w Y Ye+ � �-- '^.^`t5 ."'.'JT'�'•iG:.:,eY .eme.li Y S . ` J i f ti • .n / 1 .s a..1♦. /1 ..�• ♦ .'_ - ..• ♦ 'fir • -y � �:`� ..�•` i t f ..•? .� r r t n G` � r ti,.s" f :} ;i'.i 'L a tt 43 ` •� ��i �i'G +r� �c�- 1 i � � % i4(� �i �('� 6!• �er'4 l�y`r � t� � � .. G � ,� •s. `O�f' 4,.l� a°+ � �. 'PE.' i �� 5v.,, t rW A:.lirdi. } �'�� V ...i•:..� �..era -_ - Iw �. 'sue e ' * + A MUILAG DAYLIGHT EXISTING DRAIN 11,00 y� N 'E 367.00' +/- (PER PLAT) 1 og5b ,�T�C ' W�' ,1 Conn ->f rmue.fic- W TANKS; _.. _ n �U/ M j J , 1 1 1 1 1 1 1 , TAINING WALL 'I If RET NG WALL RETAINING WALL 1' 1 1 It 1 1 i 1 [K z 6RA1NkLb ; i I •"' !!! 1 1 1 1 1 1 + J y 1 1 1 1 1 1 TRAILER i y W I • C/0 PROPOSED CURTAIN DRAIN C/O M PROPOSED CURTAIN DRAIN w C/o z 0 �-- ..---� - ,� Q M N l RETAINING WAL ^ �yt` N �Lf Z C/0 -- z 1 C6n5 �-'�Q Ls•6s£ 3,�OOADA N I CURTAIN DRAIN DETAIL SOIL SURFACE F�ECEI�C� SLOPE 3 202y AUG 2 POLY SHEET Street Adder 7 8"- 1 1/2" GRAVEL TO 615 W. 2211 WI HIN 12'' OF SURFACE IMPERVIOUS LAYER 4" 611 PERFORATED 12„ MIN.DEPTH PIPE MIN.--� CLEANOUT AND INSPECTION PORT -' REQUIRED FOR CURTAIN DRAIN. CURTAIN DRAIN MUST EXTEND AT "`�-J LEAST 6" INTO RESTRICTIVE LAYER, REGARDLESS OF RESTRICTIVE SITE PLAN LAYER DEPTH SCALE: 1 " = 30' a 30 N CLIENT: JEFFERY & CARMEL CALL PROPERTY INFORMATION: ROGER PN: 22331 - 52- 00035 SITE ADDRESS: 200 NE RAINTREE LN Et 7m DRAWN: LP, 6/3/24 PAGE 1 OF 1 CWA CONSULTANTS, P.S. STRUCTURAL ENGINEERING BUILDING CODE CONSULTANTS 8675 E.Caraway Road,Pat Orchard, WA 98366 (360)871-5433 FAX (360)871-5633 E-Maik chucicgcwwarsul4 Zmd December 26, 2024 SUBJECT: Structural Observation of Retaining Walls LOCATION: 200 Raintree Lane, Call Residence To whom it may concern: I performed a post construction inspection of the site retaining walls at the above mentioned address. The geo-grid material has been placed at the specified locations as shown in the structural calculations and the structural drawings. I also performed a manual pentatrometer test at several locations within the soil material used for the retaining wall backfill. Based on those penetration tests it is my professional opinion that the soil used for the backfill material has a relative compaction of between 85% and 90% as required in the Geotech report. Based on my observations, it is my opinion that the actual construction of all of the site retaining walls is in general conformance the approved plans. Should there be any further questions, please contact me. C� Charles Williams PE, SE ,� wLSpd CWA Consultants �. �: A' lL I `r 12/26/2024 6 ) PIq �Jz°2