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7.A. - Page 43 <br /> Redwood City Chapter 3.Project Description <br /> Construction <br /> Construction of the proposed modifications is anticipated to begin in Apri12013 and would last <br /> approximately seven weeks.As shown in Table 3-1,construction activities would include two main <br /> phases: demolition and site preparation followed by construction of the fuel system,paving,and <br /> canopy work.Some activities within Phase 2 would overlap with each other.The estimated number <br /> of workers on the site would vary during construction,but the maYimum number of workers on the <br /> site at any given time would be 15. <br /> Construction of the proposed modifications to the fueling center would require excavation of soils. <br /> Excavation would extend to a depth no greater than 2 feet below the existing grade of the site and <br /> would result in approximately 200 cubic yards (cy) of excavated soils.Soil and surface material <br /> would be segregated.Surface material (demolished asphalt and concrete curbing)would be <br /> exported to the appropriate landfill location that can accept this type of demolished material. <br /> Excavated soil would be stockpiled on the project site until it is re-used in the backfill process or it is <br /> determined it is no longer needed.The soil stockpile would be contained within the site construction <br /> fencing,and may be exported immediately if it is deemed by either the jurisdiction or design <br /> engineer as unsuitable for re-use as backfill. Likely potential soil disposal sites are located in San <br /> Jose (Mulvanny G2 2012). <br /> Table 3-1. Demolition and Construction Activities <br /> Truck Estimated Truck Activity Maximum Number of <br /> Construction Phase/Task Trips Trips Per Day Duration Workers Per Day <br /> Phase 1: Demolition/Site Preparation <br /> Temporary Fencing,Asphalt 20 10 2 days 4 <br /> Removal <br /> Sub-grade Earthwork 20 7 3 days 3 <br /> Relocate Storm Drain - - 3 days 2 <br /> Initial Concrete Work-Retaining 4 1 5 days 4 <br /> Wall,Footings,Curb <br /> Phase 2: Fuel System,Paving,Canopy <br /> Fuel System - - 10 days 3 <br /> Paving: Prepare Base 40 13 3 days 3 <br /> Paving: Concrete Apron 9 5 2 days 8 <br /> Paving:Asphalt Surfaces - - 2 days 2 <br /> Canopy and Installation Finishes - - 15 days 3 <br /> Landscaping/Striping - - 5 days 4 <br /> Several different pieces of construction equipment would be used during each phase for demolition <br /> and construction.Table 3-2 identifies the type and number of equipment by phase. <br /> Addendum No.2 to the Environmental Impact Report for September 2012 <br /> the Redwood City Costco Wholesale Project 3-5 ICF 00154.12 <br />