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21-102689-Permit FinalCity of federal Way Community Development Dept. 33325 8th Ave S Federal Way, WA 98003 Ph: (253) 835-2607 Fax: (253) 835-2609 Project Name: LEE Project Address: 30002 2NID AVE SW Project Description: BLUEBEAM - Foundation repair using helical piles. Building - Single Family Permit #:21-102689-00-SF Inspection Request Line: (253) 835-3050 Parcel Number: 513700 0050 Owner Applicant Contractor Lender HUBERT & CAROLYN LEE AMBER MILLER R & R R & R FOUNDATION PO BOX 25425 FOUNDATION SPECIALISTS SPECIALISTS 3409 MCDOUGALL AVE SUITE 20, 3409 MCDOUGALL AVE SUITE 204 FEDERAL WAY WA 98093 EVERETT WA 98201 EVERETT WA 98201 Census Category: 434 - Residential alt/add - no change in number of units Includes: #1 #2 #3 #4 Occupancy Class: Construction Type: Occupancy Load: Floor Area (sq. ft.) Additional Permit Information Mechanical to be Included? ..................................... No Is this an Online or O.T.C. application?.................. No Plumbing to be Included? ........................................ No Total Valuation: 22,252.50 No Fixtures Associated With This Permit li PERMIT EXPIRES Wednesday, 12 January, 2022 Permit Issued on Friday, July 16, 2021 I hereby certify that the above information is correct and that the construction on the above described property and the occupancy and the usb iririll n� ae pfc[Eihce with the laws, rules and regulations of the State of Was g ors nd the City of Federal Way. .i t 1 I a Owner or agent: Date: CITY OF Federal Way THIS CARD IS TO REMAIN ON -SITE Construction Inspection Record INSPECTION REQUESTS: (253) 835-3050 PERMIT #: 21 102689 00 Address: 30002 2ND AVE SW Project: HUBERT & CAROLYN LEE FEDERAL WAY WA 98023-3901 Scheduled inspections may be failed if this card is not on -site, 1?0 NOT Lf SI.'I'hl1S CA1111, inspections are listed as close to sequential order as possible (read left to right, top to bottom). Please schedule inspections as appropriate. Work must not be covered until it is approved. Check with your inspector if you are unsure about any of the inspections or the inspection sequence. fin -going inspections are lagged on the back of this card. SWM Precon Site Mtg (4400) 2❑ Initial Erosion Control (4365) Footings/Setback (4110) Approved To be done PRIOR to breaking ground Approved to place concrete By Date By Date By Date I w.l Underfloor Framing (4285) 0 Floor Sheathing (4105) © Shear Walls (4245) Approved to sheath floor Approved to install flooring Approved to install siding By Date By Date By Date Roof Sheathing (4220) Q Fire/Draft Stops (4095) Q Interim Erosion Control (4370) Approved to install rooting Approved Approved By Date By Date By Date Prior to scheduling a Framing inspection; 10 Framing (4120) 11 Insulation (4150) Electrical, Plumbing & Mechanical Rough -in Approved to insulate Approved to install wallboard and Fire/Draft Stop inspections must be signed - off and approved. IBC 109.3.4 By Date By Date 14 Final - Building (4050) 12 Gypsum Wallboard Nailing (4130) 13 Final Erosion Control (4375) Approved to install mud & tape Approved Approved By Date By Date By A� Date 7 Final Electrical Right of Way Approved Rough Electrical Approved Approved By Date By Date By Date 1 of 5 LONGITUDE ONE TWENTY° ENGINEERING & DESIGN Pile Review for Structural Compliance Date: November 7th, 2021 Project Name: Foundation Stabilization/Lift — Federal Way Project Number: S210624-1XR Project Location: 30002 2nd Ave SW, Federal Way, WA 98023 Client's Name: Andi Holm, Project Coordinator — R&R Foundation Specialist, LLC To Whom It May Concern: The purpose of this letter is to confirm pile installation and capacity compliance with the structural re- quirements specified in the L120 Structural Calculation Package and Structural Site Plan dated June 25tn 2021. During the week of October 22nd, 2021, seven (7) helical piles were installed by R&R Foundation Specialists (R&R) to stabilize areas of the single-family residence located at 30002 2nd Ave SW, Federal Way, WA 98023. To the knowledge of L120, these piles were installed by R&R certified installers in accordance with the cited structural package, ESR-3750. Please refer to the attached drive log and photographs provided by R&R. The helical piles were installed with maximum pile spacing of 7'-0" on -center, the typical minimum required vertical capacity as determined by L120 is shown in the table below. These demand requirements are as determined and specified in L120's structural calculation package cited above. PILE 'SPACING 3 LOAD REOUIRMENTS TABLE MAX O.C. SPACING, h MNV VERTICAL CAPACITY, k" PROOF TESTING LOAD, Mpg �*,PILE TYPE BTWN PILES EN D OFFSET A 0WABLE LOADING 200% MIN VERTICAL CAPACITY (MMI ULTIMATE CAPACITY LOCATION TYPICAL HELICAL G-0' UNO TV UNO 14 5 kip 29 0 kip TYP TYPICAL HELIC& TV UNO YV UNO 17 0 1UP 3404 TYP Pile capacities for the helical piles have been calculated using a Digga MM-10K drive head with a torque correlation factor, Kt, of 9 as prescribed in ESR-3750. A chart showing the resulting capacities is attached to this letter. Per the attached document, an Ideal Foundation Systems 2-7/8" diameter helical pile installed to a minimum pressure of 1,400 psi results in a maximum allowable capacity of 21.9 kips including a safety factor of 2. 2 of 5 The results are summarized below: Helical Piles #1-#7: Maximum Demand (allowable): 17.0 kips/pile Available Capacity (allowable): 21.9 kips/pile By inspection, the pile capacities of the installed piles exceed the maximum loading demand as determined by L120's analysis. Therefore, the installed piles comply with the structural design/demand. Please contact us if you have any questions. Sincerely, Jason Tien L120 Engineering & Design (L120) j tien@1120engineering. com Mans R. Thurfjell, P.E. L120 Engineering Er Design (L120) xtitliurfjell@1120engineeriiig.corit r• a a a a 0 - ♦0 3 of 5 CuS:nr„>-r "a`"` `pr y"" `°e Ideal Pier Data Addrrss30032 Ina Ave SW, F.,de ral Way, WA, 98023 Drivehead: 10K Lead- Ty:er Lindstrom t 11 0-5 500 5007-5001 5001 500 500 5001 5-10 1 5001 7001 8001 5001 800 500 800� 10-15 14001 1500 1400 1400 1800 1600 1600 15-20 20-25 1 25-30 I 30-35 35-40 40-45 45-50 50-55 60-65 65-70 i 70-75 75-80 J 80-85 Final Depth 10 11 11 9 10 12 12 i 27.5' LOCATE PILE M = Existing Post WITHIN 3FT MA = 3" Helical Pile® OF CORNER N ' cli Patio in O = Polyurethane Lift --J (2) PILES V-0.0Z 50' _4 Sllder.2 /4 -7/8 -1 3/4 t 5/8 A in 20' a A GN PILES #5 AND #6 RECTLY UNDER C) 3 L1DER END SUPPORTS 0 o -isle House CD Gas 318 -1 /8 -3/4 2 1 rE3 w J 2. 4 N a Garage Crac -1 1!8 18 6.6' _ -3/4 -1/4 0 -1 5/8 C= 37.5' -2 1/4 A 50 p U O 20' o 15' N A 4 of 5 MAX Project Name: Foundation Stabilization/Lift - Federal Way Project Number: S210624-1XR Project Location: 30002 2rrd Ave SW, Federal Way, WA 98023 Client's Name: Andi Holm, Project Coordinator - R&R Foundation Specialist, LLC Subject: 2 - 7/8" 0 Helical Pile - Compression Torque Chart - Digga MM-10K ideal Foundation Sinterns 2-7/8"0 Helical PIe 0.203-Inch wall thickness) - Soil Caai er ESR-3750 DIGGA 10K Drive Head Pressure (psi) Torque,T (Jt'!bs) Torque Correlation Factor, Kt Compression (Jf,' ) Ultimate Axial CompressiveCapocity, P. K,•T (kips) Allowable Axial Compressive Capacity, P, - 0.5'P, (kips) 5DO 1,740 9 15.7 7.8 600 21088 9 18.8 9.4 7D0 2,436 9 21.9 11.0 800 2,784 9 25.1 12.5 9D0 3,132 9 28.2 1 14.1 1000 9 31.3 1 15.7 1100 _ _3A80 3.828 9 34.5 17.2 12DO 4,176 9 37.6 18.8 1300 4.524 9 40.7 20.4 1400 4,872 9 43.8 21.9 1500 5.220 9 47.0 23.5 1600 5,568 9 50.1 25.1 1700 5.916 9 53.2 26.6 1800 6,264 9 56.4 28.2 1900 6.612 9 59.5 29.8 2D00 6,960 9 62.6 31.3 2100 7,308 9 65.8 32.9 2200 7,656 9 68.9 34.5 2300 8.000 9 72.0 36.0 i.) DIGGA 30K Drive Head differential pressure display to torque output has been pulled from the attached conversbn charts provided by DIGGA. il.) Per Table 5A of ESR-3750, the maximum installation torque rating of a 2-7/8"0 helical pile 10.203-Inch wall thickness) is 8,300 ft'Ibs. Per ideal Manufacturing, Inc., the maximum installation torque rating of a 2-7/8"0 helical pile (0.203-Inch wall thickness) is 8,000 ft'Ibs. Final Installation torque shall not exceed the lesser of these Ilmiting values. Ill.) Piles shall reach a torque that correlates with an allowable capacity that meets or exceeds the maximum allowable load demand as listed in the structural package, but shall not exceed the maximum allowable capacity for any part of the pile assembly. Iv.) Refer to ESR-3750 and Ideal Manufacturing, Inc. documents for additional information and requirements. v.) Definitions per ESR-3750: T = Final Installation torque In ft'lbs; the last torque reading taken during pile installation, using, for example, the torque reading instruments connected to the Installation equipment. K, = Torque correlation factor per ESR-3750 P. = ultimate axial compressive capacity (In kips) of helical pile P. = Allowable axial compressive capacity (in kips) of helical pile vi.) For torque readings between those listed, use the following equation to determine the allowable capacity: P.- (T*KJ/2 vil.) 1 kip = 1,000 Its Digga - Speed & Torque Chart Model Code: MM - 10K GF: 262 I rpm vs Ipm 20 I a 15 10 d �+ 5 A 0 _ 0 20 40 60 80 Flow rate (Ipm) Max. Flow I m 70 Max. S eed (rpm) 16 Output Torque Differential Pressure 0isplay Nm Bar 2,360 34 3,303 41 48 4,247 55 62 69 5,191 76 83 6,135 90 7,079 97 103 110 8,023 117 124 8,967 131 138 9,910 145 10,854 152 159 11,798 166 172 179 12,742 186 13,686 193 200 207 rpm vs gpm 20 . a 15 10 _ CQ, 5 0 - 0 5 10 15 20 Flow rate (gpm) Max. Flow m 18 Max. Speed (rem) 16 Differential Pressure Display Output Torque PSI Ibf ft 500 1,740 700 2,437 900 3,133 1,100 3,829 1,300 4,52a 1,500 5,221 1,700 5,917 1,900 6,613 2,100 2,300 7,310 8,006 2,500 2,700 8,702 9,398 2,900 10,094 x IMPORTANT: This chart is based on theoretical values and is provided as a guide only. Digga accepts no responsibility complying with any installation requiring certain torques being reached. You will need to consult an engineer.