3829 SHORE AVE 2018-01-02 MF Import

� . � , . SLOPE STABILITY STUDY SHORE AV�NUE EVERETT, WASHINGTON INTRODUCTION This report presents the findings and results of a slope stability study for the north facing slope and the area south to Shore Avenue, between Powder Mill Gulch and Edgewater Creek in the City of Everett� Washington. The work was authorized in your letter dated April 29, 1983• The purpose of this study was to determine the areas of and causes for instability along tlte slope area, 3dentify those areas where potential instabilities could occur and present mitigating meaeures to reduce further s2iding and eroaion. The scope of study inaluded performance of four borings along Shore Avenue and visual reccnnaissance of the slope area. Available geologic maps and past studies of the area were reviewed for background information. Stereoscopic air photo pairs from 1947. 1967 and 1981 were also studied and used for information presented in this ;eport. Enclosures to this report include a location/geologic map, air photo interpretation map and boring logs. All elevations mentioned in this report refer to existing grade and to a topographic map of the area supplied by you. LOCATION & SITE DESCRIPTION The subject study area consists of the steep northerly facing sl.�e between Powder Mill Gulch and Edgewater Creek and the arra back Srom the top-of-slope to Shore Avenue in Everett, Washington. Burlington Northern Railroad right-of-way is located at the base of the steep slope, next to Possession Sound. Presently, the slope area ia in a natural andeveloped condition. Burlington Northern has conatructed a rock sea wall along the majority of the slope toe area to minimize erosion from Possession Sound. The relatively level area back Yrom the top-of-slope -1-