3628 UPLAND AVE 2016-01-01 MF Import

. `� ,� c � TERRA ASSOCIATES, Inc. Consultarns in Geotechnical Cngineering, Geology and [nvironmental [arlh Sciences Ocrobcr 7, 1997 Project No. 3788 Mr. Dave Sharp Sharp Building Company 21008-36th Avenue West Lynnwood, Wxshington 98036 Subject: Geotechnical Evaluation Proposed Residence,363011p1and Avenue Everett, Washington Reference: Geotechnical Report, Prepnred by The Galli Group Dcar Mr. Sha . • As requested, we have revicwed the proposed wnstruction of a single-family residence at the above subject site. The purpose of our review was to verify nnd confirm that geotechnical recommendations, as outlined in the above referenced report,were valid and were incorporated into the development of the design drawings. Design drawings reviewed in our evaluation were titled "Maple Residence" and included slieets 12 of 12, prepared by Dave A. Hermans,with a plan date of August I5, 1995.' The residence will be a two-story wood-frame struMure with a lower basement level. The main floor will be established at an elevation of 504.5, with the lower basement nine feet deeper,at an elevation of 495.5. Based on existing sire topography, this will require an e�cavation of approximately six feet below existing surface grade. The residence as sho�m on the site plan is set back a minimum distance of 22.5 fcet from the top of a steep west-facing slepe. fn the above referenced geotechnical report prepnred by T7�e Galli Group,soil conditions at the site were noted ro consist of hvo to three feet of surficial fill composed of a silty sand �vith gravel, followed by dense consolidated Glacial till. Observations of the westen� slope as reported by The Galli Group's representative, noted the slope to be in a stable configuration, with no evidence of past or current slope instability at the time of their obsen�ations. Based on their observations and limired field exploration, it was recommended that the building be set back a minimum distance of 22.5 feet from the top of the slope, and that building foundations gnin support on dense native soil conditions underlying the existing surficial fills. 12525 Willo�Y:s Koad, Suite 101, Kirkland, Washinglon 9803d • Phone (425) A21-7777