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• PAR 1 K H Geotechnica! . <br />Environmental ^ <br />Materials Testing ^ <br />Practicing in the Geosciences Construction Inspection . <br />Biggs Cardosa Associates February 14, 2008 <br />1871 The Alameda, Suite 200 PR No: 200122 <br />San Jose, Ca 95126 <br />Attn: Mr. Greg Kenning <br />Sub: Cost Proposal -Bernal Avenue Bridge Replacement -Bernal Avenue over <br />Arroyo Del Valle, Isleasanton. <br />Dear Mr. Kenning: <br />As per our discussions and your a-mail with the structural plans, we are pleased to provide you <br />our scope of services and cost estimate through construction for the proposed project. The <br />overall detail schedule for the various project elements are not available at this time. Therefore <br />the estimates are based on assumptions that may change during construction. Therefore these <br />estimates should be considered as place holder budgets for future negotiations or for overall <br />budgeting purposes. Once detail schedules are available from a contractor the budget costs can be <br />refined. <br />The project elements that may require our services are 1) Compaction testing for rough grading <br />of the roadway work; 2) Construction Support Services; 3) Pile driving & footing observations. <br />Following are the basic assumptions and their respective cost estimates. We have allowed a <br />modest budget for project manager and project engineer for project services, report preparation, <br />and meetings. This phase of our services will include the following: <br />1. Compaction Testing <br />Compaction testing services during pavement construction will include subgrade compaction, <br />and aggregate base preparation. This also includes asphalt concrete testing. Additional time is <br />budgeted for laboratory testing of compaction curves, (one for subgrade, and one for <br />aggregate base). We have assumed that the grading work will require about 5 working days <br />for subgrade preparation, placement of base rock and paving. <br />2. Construction Support Services <br />Services during construction may include review of submittals and RFIs. Also includes <br />update of the existing report and log of test borings. <br />358 3. Milpitas Bivd., Milpitas, CA 95035-5421 • (408) 945-1011 • Fax: (408) 945-1012 • www.PARIKHNET.com <br />Olflces: MJlpitas • Fremont • Oakland • Sacramento • Walnut Creek <br />