2908 49TH ST SW 2016-01-01 MF Import

r LIU & ASSOCIATES, INC. - - ------ --- ------ _ _ - - -- -- Geotechniwl Engineenng Engineering Geoiogy September 7, 2010 Mr. John Mustach Mustach Land Development, LLC P. O. Box 12176 Mill Creek, WA 98082 Dcar Mc Mustach: Subject: Gcotechnical Investigation and Design Prccast Concrcte Block Wall Sea Breeze Plal Sea I3reeze Way and 49�h Strect SW Evcrett, Washington I.&A Job No. 10-036 INTRODUCTION Earth Science We understand that a precast concrete block wall is to be constructed across the downhill (east) side of Lots 5, G and 7 of the subject plat site to retain fill to bc placed for grading the subject lots. At your requcst, wc have completed a geotechnical investigation and performed a design for the proposed block wall. Presented in this report are our finding of the geotechnical investigation of thc silc and our design of thc block wall. DESCRIPTION OF 13LOCK WALL 'fhe proposed precast concrete block wall is to bc constructed on the downhill (east) side of the subject lots, abovc a ZO-foot widc drainage casemenL 7'hc height of this wall will be from under 4 feet to up to ahout 10.5 fcet. 7�he purpose of this wall is to retain fill to bc placed for grading of thc :,ubject lots. Geogrid :::csh will be embedded in the wall backfill and anchored between the ro�vs ol'precast concrete blocks, wherever reyuired. 19213 Kenlake Place NE • Kenmore, Washington 98028 Phone (425) 483-9134 • Fax (425) 486-2746