7000 HARDESON RD 2018-01-02 MF Import

SUBSURFACE EXPLORATION AND 6-917-10260 GEOTECHNICAL ENGINEERING REPORT COMMUNITY TRANSIT-HARDESON ROAD FACILITY EVERETT. WASHINGTON 1.0 INTRODUCTION The purpose of this study was to establish general surface and subsurface conditions at the site from which conclusions and recommendations for foundation design and earthwork procedures could be formulated. The scope of work consisted of field explorations, geotachnical engineering analyses, laboratory testing, and the preparation of this report. In the event that any changes in the nature, design, or location of the structures are planned, the conclusions and recommendations contained within this report should be reviewed and modified, if necessary, to reflect the changes. This report has been prepared for the exclusive use of Quadrant, Community Transit, and their agents, for specific application to this project in accordance with generally accepted geotechnical engineering practices. 2.0 PROJECT DESCRIPTION The project site is located west of Hardeson Road, midway between 75th SW and Merrill Creek Parkway in Everett, Washington, as shown on the Location Map (Figure 1). The site is a skewed rectangular parcel of land totaling 29.8 acres. The parcel measures roughly 688 to 772 feet by 1430 to 1680 feet overall, excluding the irregular jog in the center of the parcel along the western property boundary to the west. The parcel is bordered to the east by Hardeson Road, by the existing gravel pit/settling pond to the north, by the Overall Laundry facility to the south, and the approximate crest of slope to the west. The parcel is broken into two lots, Lots 1 and 2, both comprised of roughly 14.9 acres. The actual estimated useable land areas for development on the lots are 10.5 and 12.1 acres, respectively. The attached Location Map (Figure 1) illustrates the subject property and some of the adjacent properties. The proposed development will consist of constructing a bus maintenance facility. Preliminary plans call for a 70,200 square foot maintenance building. The eastern part of the building will have a second story, 11,475 square foot mezzanine for offices. An additional parts mezzanine of 6,550 square feet is in the middle of the building. The maintenance building will be approximately 30 feet high and will be of concrete tilt -up construction. In addition, an approximately 4,000 square foot fuel bam and 2,000 square foot wash barn will be constructed I along the eastern border of the site as shown on Figure 2, the Site and Exploration Plan. Underground utilities will service the buildings. Parking will consist of 249 bus stalls and 171 stalls as auxiliary bus parking. Standard bus parking will be underlain by concrete pavement and auxiliary parking will be underlain by Class 8 asphaltic concrete (AC) pavement. In addition 382 stalls for cars would be underlain by AC pavement. The proposed location of the ' structures and approximate locations of our explorations are shown on the attached Site and Exploration Plan, Figure 2 and Preload and Parking Plan, Figure 3.