3313 OAKES AVE 2020-07-14 - Laserfiche WebLink

GeoTest Services,Inc. December 9,2016 3313 Oakes Avenue,Everett,WA Job No. 16-0659 The western building would be comprised of a duplex consisting of two stories over a full basement that would daylight to the east. The basement would have a proposed floor elevation of 138 feet. The footprint of the proposed building would be set back at least 5 feet from the northern and southern property lines. Based on the topographic information provided to us, cuts of up to 6 feet below ground surface (BGS) would be required to reach the planned excavation bottom for this building. The eastern building would be comprised of a single residential unit consisting of two stories with no basement. This building would also have a proposed main floor elevation of 138 feet. Based on the topographic information provided to us, cuts of up to 3 feet are anticipated to reach the planned excavation bottom for this building. We expect that both proposed residential buildings would be wood-framed and utilize shallow conventional foundations such as continuous and spread footings. A new driveway would extend into the subject property from its northeast corner. The new driveway would terminate at the center of the subject property. We understand that the owner of the subject property also owns the adjacent property to the north. Short, landscape block walls would be constructed along the northern and southern ends of the driveway/parking area. The design of these walls is outside of the scope of this report. SITE CONDITIONS This section discusses the general surface and subsurface conditions observed at the project site at the time of our field investigation. Interpretations of the site conditions are based on the results of our review of available information, site reconnaissance, subsurface explorations, laboratory testing, and our experience in the project vicinity. General Geologic Conditions Geologic information for the project site was obtained from the Geologic Map of the Everett 7.5-minute Quadrangle, Snohomish County, Washington (Minard, 1985), published by the U.S. Geological Survey. Based on our review of this map, the site appears to be underlain by till (Qvt). The till is locally referred to as Vashon till or hardpan. It is a nonsorted mixture of clay, silt sand, pebbles, cobbles, and boulders. The hardpan is largely a result of compaction by the great weight of the overriding ice which was about 1,000 m in thickness. The poor sorting generally reflects mixing of the materials that are overridden and incorporated into the ice. The native soils encountered in our explorations are generally consistent with the published geologic information and our experience projects in the nearby vicinity of the subject site. Surface Conditions The rectangular-shaped subject property occupies approximately 50 feet of frontage along the eastern side of Oakes Avenue, just south of downtown Everett, Washington. The property measures approximately 120 feet in the east-west direction. Multi-family residences border the property to the south, an alley borders the property to the east, Page 2 of 17