Laserfiche WebLink
it <br /> • • <br /> GA17311-135th Ave.N.E.Suite A-500 <br /> Woodinville,WA 98072 <br /> NELSON GEOTECHNICAL (425;486-1669 <br /> ' ASSOCIATES. INC. www.nelsongeotech.com <br /> RECEIVE --% <br /> FEB 0 4 2023 J <br /> DATE: January 18,2023 <br /> CITY OF EVERETT <br /> TO: Dennis and Chelsea Miller Permit Services <br /> VIA Email: doccaribb@icloud.com;c hordo@hotmail.com <br /> c/o Randy Hordo <br /> VIA Email: rh@rhlawcorp.com <br /> FROM: Khaled M.Shawish, PE �� M_Sk <br /> . of wA. ._,,/ <br /> Alex Rinaldi, LG ��,ttw ff 'Lc, <br /> `' a\ , <br /> RE: Emergency Foundation Underpinning Memorandum ► r -OW <br /> Miller Residence Landslide 35215 w <br /> 2702 59th Street Southwest 4\ -c's T E c <br /> Everett,Washington �/of� ;� <br /> NGA File No. 13333B22 1/18/2023 <br /> INTRODUCTION <br /> This memo presents the results of our observations and recommendations regarding the current <br /> condition of the property and recent significant slope movement activity at 2702 59th Street Southwest <br /> in Everett,Washington.We previously prepared a geotechnical evaluation for landslide repairs dated July <br /> 1,2022.The initial report documented our analysis and recommendations for stabilization of a significant <br /> landslide that occurred below and to the south of the residence during December 2021. Since this time, <br /> we have been working with the project structural engineer to develop stabilization plans. Additionally, <br /> NGA has been retained to monitor slope conditions,on a monthly basis,through measurement of a slope <br /> inclinometer,visual assessment,and foundation settlement monitoring points. <br /> SITE CONDITIONS <br /> We visited the site on December 29, 2022. During the site visit we measured the slope inclinometer well <br /> positioned within the paver patio area immediately south of the residence and north of the existing <br /> landslide scarp. We also surveyed the previously installed foundation monitoring points along the <br /> perimeter of the southeastern portion of the house,which protrudes close to the landslide scarp.Visually, <br /> we noted the presence of new tension cracking and depression of the soil above the pre-existing landslide <br /> scarp and just off the southeast corner of the residence. The inclinometer readings indicated <br />