3631 WETMORE AVE 2020-05-06 - Laserfiche WebLink

, (".'.1 -4 F EVERE } RE' , ::: FORF ,- Cobalt ile P.O.Box 82243 Kenmore,Washington 98028 Geosciences (206)331-1097 Permit#: PWW1804-003 Site Address: 3631 WETMORE AVE April 12, 2018 Owner: REID SECUNDUS LLC Tenant: Wayne Smith App.Date: 4/18/2018 Proposed Use: wavne@wavnesmithre.com Description: REBUILD RETAINING WALL AT PROPERTY UNE RE: Retaining Wall Design 3631 Wetmore Avenue 6� lie IS Everett, Washington ReviewedK 8y: /•, Date: Office Set Joh Site Set Fire/Planning Set Dear Mr.Smith In accordance with your authorization, Cobalt Geosciences, LLC (Cobalt) has prepared retaining wall designs for the property located at 3631 Wetmore Avenue in Everett, Washington. We understand that there was a concrete retaining wall along the south property line that was removed several years ago. Currently, there is a steep slope/cut covered with plastic in this area. Also, there is a concrete retaining wall along the east side of the property near an existing garage. This wall is outward leaning and there is a concrete paved parking area above the wall. Retaining Wall Location Along the south property line, a new modular block wall with geogrid reinforcement will face the existing slope cuts and will replace a set of concrete stairs and short section of failing concrete wall. The wall will be approximately 105 feet in length and range in height from under 4 feet at the southwest property corner up to about 8 feet near the existing garage. Figure 1 shows the approximate wall location and heights. General Wall Subgrade Preparation To prepare the wall areas for construction,all vegetation, organic surface soils, and other deleterious materials including any existing wall blocks/foundation systems. Organic topsoil will not be suitable for use as structural fill, but may be used for limited depths in non-structural areas. The native soils observed in the excavation appear firm and consist of medium dense, silty-sand with gravel (Glacial Till). These soils should be suitable to support the new wall system provided any loose soils and/or mud are removed prior to base placement.