3322 BROADWAY COMPASS HEALTH 2025-10-03

GEOTECHNICAL ENGINEERING STUDY Proposed Building 3322 Broadway Avenue Everett, Washington This report presents the findings and recommendations of our geotechnical engineering study for the site of the proposed building to be located in Everett. Based on preliminary information for the project, we understand that the proposed development of the site will consist of first demolishing the existing building and site structures and then constructing a new, multi -story building that will encompass much of the lot. The building is planned to daylight on the low side of the site, along Broadway Avenue, and will have a preliminary finish floor elevation of 79 feet. Based on this information and a topography map for the site we received (prepared by Bush, Roed, and Hitchings dated May 30, 2017), we understand that excavations of about 5 to 8 feet will be needed along the low, eastern side of the property, while excavations of about 18 to 22 feet will be needed along the higher, western side of the property. If the scope of the project changes from what we have described above, we should be provided with revised plans in order to determine if modifications to the recommendations and conclusions of this report are warranted. SITE CONDITIONS SURFACE The Vicinity Map, Plate 1, illustrates the general location of the site in the central portion of Everett. The rectangular site encompasses a half -city block and has dimensions of 400 feet in the north - south direction, and 120 feet in the east -west direction. The site is bordered to the north by 331 Street, to the east by Broadway Avenue, to the south by 34'" Street, and to the west by an alleyway. An older residence, multi -story apartment building, and parking lot are located on the western side of this alleyway, all of which are owned by the client. These adjacent buildings are located at -grade with the alley, and do not appear to contain below -grade space. The grade across the property slopes downward from west to east (alley down to Broadway), with a total elevation change of approximately 21 feet across the site. much of this elevation change occurs gently to moderately across the site. Much of the site is currently developed with an older, irregular shaped, 4-story building. This structure was apparently constructed in phases, with the construction phasing moving from north to south over time. Much of the structure is underlain by a basement that is situated in the range of 15 feet below the alley grade. A 13-foot tall, concrete retaining wall lines the western edge of the a "courtyard" that is located on the west -central area of the site adjacent to the alley. Also, a 4 to 6-foot tall concrete retaining wall lines the western property boundary by a loading dock that is further north of the courtyard. A small parking lot is located on the lower, southeastern corner of the lot, providing access to the building for the patrons. The remainder of the site is relatively undeveloped, and mostly consists of walkways, and scattered grass and landscape beds. GEOTECH CONSULTANTS, INC.