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I001 Main Street, Suite 305 <br /> STARK Vancouver WA, 98663 <br /> FOUNDATIONS P: 360.566.7343 <br /> July 17, 2018 <br /> Mr. Cory Myron <br /> R&R Foundation Specialists <br /> 7704 176th Street SE .._._ <br /> �ohomish <br /> Re: Special Inspection -7205 Juniper Lane, Everett, Washington <br /> Permi o.: b1806-018 <br /> Dear Cory- <br /> I have performed the special inspection of the installation of the helical piers per ICC ESR-3969 for the above- <br /> rafaranrarf nrniart <br /> Helical Pier Installation: <br /> The helical pier used for installation was a 2 7/8 inch diameter pipe with a 10 inch diameter helix configuration. <br /> The installation was performed by R&R Foundation Solutions certified installers for PierTech Products using a <br /> RS-6 drive head. <br /> The maximum axial load requirement for this project is 20000 lbs ultimate load. The piers were driven to depths <br /> of 10 -_15 feet with a_minimum installation pressure of 1500 psi. This results in an ultimate axial capacity of'W <br /> 36450 lbs, exceeding the required ultimate load per the design documents. Summary: <br /> Based on my special inspection and structural observation,the helical piers were installed according to the <br /> engineering design load requirements and according to ESR-3969. <br /> Please give our office a call if you have any questions or need further assistance. <br /> taA1ELWA <br /> pF WAs14j� <br /> 47" lit- `It <br /> Reaards. <br /> Daniel Stark. P.E. 40643 ff <br /> Stark Foundations, Inc. <br /> ��'GIS7ER� �Y <br /> Attachments: Drive Log S1ONAL <br /> RS-6 Torque.Chart <br /> EXPIRES: 07/13/20 <br />