1903 W MUKILTEO BLVD 2020-02-24 - Laserfiche WebLink

G iT ,.#.. I 11 2401 10th Ave fi CONSULTANTS, INC. Seattle Wa(4225)5)747-5 744 98102 ( 47--55618 Ccaus March 4, 2019 11�J Al 12084 Dr. Hong Li APR 3 0 2019 1903 West Mukilteo Boulevard CIT Everett, Washington 98203 Pe OFS �ERETT s via email:HLi@vetmed.wsu.edu Subject: Review of Plans Tied-Back Pile Wall to Stabilize Top of Slope Li Residence 1903 West Mukilteo Boulevard Mukilteo, Washington Reference: Geotechnical Engineering Study, Slope Stability and Stabilization Measures, Li Property, 1903 West Mukilteo Boulevard, Everett, Washington; May 10, 2012; Geotech Consultants, Inc. Dear Dr. Li: As requested, we have completed a review of the geotechnical aspects of the plans for the slope stabilization wall to be constructed at the top of the slope to the north of your residence. We were provided with sheets S0.1, S1.1, S2.1, S2.2, and S3.1 prepared by CG Engineering, dated February 20, 2019. No groundwater is expected to reach the wall. As a result, a footing drain is not needed behind the wall. Any small amounts of shallow water reaching the wall face can simply weep out through the lagging boards. Based on our review of the plans, and discussions with Dennis Titus of CG Engineering, the designed wall is intended to provide stability against foreseeable shallow slope movement within the upper looser soils. This is one of the two stabilization options discussed in our 2012 report, and is similar to what has been completed previously on nearby properties. Based on our review, the provided plans conform to our recommendations. Please contact us if you have any questions, or if we can be of further assistance. Respectfully submitted, GEOTECH CONSULTANTS, INC. o R ivfe Marc R. McGinnis, P.E. 4 _; h 'o Principal ,t#a de, • cc: CT Engineering—Dennis Titus , { ; IZ4j13.1 via email: dennist@cgenoineering.com4,e 27 45c�.�f • ss • 1pNA1.06 � ,�� MRM:kg GEOTECH CONSULTANTS,INC.