12906 19TH AVE SE FRED MEYER FUELING STATION 2018-01-02 MF Import

Geotechnical Engineering Report 6 June 27. 2008 rred dleper Fueling Facility Project 92008-217 Everettwn For heavy truck traffic areas: 4 inches of AC over 12 inches of CRB; and J% l,or general parking areas: 3 inches of AC over 9 inches of CRB. The asphalt paving materials used should conform to the Washington State Department of Transportation (WSDOT) specifications for Class B asphalt concrete and CRB surfacing. Long-term pavement performance will depend on surface drainage. A poorly -drained pavement section will be subject to premature failure as a result of surface water infiltrating into the subgrade soils and reducing their supporting capability. For optimum pavement performance, surface drainage gradients Of no less than two percent are recommended. Also, some degree of longitudinal and transverse cracking of the pavement surface should be expected over time. Regular maintenance should be planned to seal cracks when they occur. 5.0 ADDITIONAL SERVICES Riley is available to provide further geotechnical consultation as the project design develops. We should review the final design and specifications in order to verify that earthwork and foundation recommendations have been properly interpreted and incorporated into project design and construction. Riley is also available to provide geotechnical engineering and monitoring services during construction. The integrity of the earthwork and construction depends on proper site preparation and procedures. In addition, engineering decisions may have to be made in the field in the event that variations in subsurface conditions become apparent. Construction monitoring services are not part of this scope of work. If these services are desired, please let us know and we will prepare a cost proposal. 6.0 LIMITATIONS This report is the property of The Riley Group, Inc., Fred Meyer Stores, Inc., and their designated agents and was prepared in accordance with generally accepted geolechnical engineering practices. This report is intended for specific application to the Fred Meyer Fueling Facility at 12906 Bothell-Iivercit Highway in Everett, Washington. This report was prepared for the exclusive use of Fred Meyer Stores, Inc. and its authorized representatives. It should be made available to prospective contractors for information or factual data only and not as a warranty of ground conditions. No other warranty, expressed or implied, is made. The analyses and recommendations presented in this report are based upon data obtained from the test borings drilled on -site. Variations in soil conditions can occur, the nature and extent of which may not become evident until construction. If variations appear evident, The Riley Group, Inc.