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EXHIBIT D <br />PRELIMINARY ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COSTS <br />VINEYARD AVENUE CORRIDOR SPECIFIC PLAN AREA <br />WATER STORAGE TANK <br />City of Pleasanton, California <br />(Access Road Improvements on Reznick Property - Up to Existing Residence) <br />(Incremental costs beyond the 12-foot wide Tank Access Road for 18-foot wide Private Street) <br />ITEM DESCRIPTION <br />Roadway Items AMOUNT <br />1 . Clear 8 Grub $2,000 <br />2 . Rough Grading $5,000. <br />3 . Import $6,000 <br />4 . Fine Grading $2,200 <br />5 . Asphalt Paving (3" AC/6" AB) $36,000 <br />6 . 2' Retaining Wall $4,000 <br />7 . 3' Retaining Wall $15,000 <br />8 . 4' Retaining Wall $15,000 <br />9 . 8" Sanitary Sewer $39,000 <br />10 . Sanitary Sewer Manholes $39,000 <br />11 . Additional roadway design costs $11,000 <br />12 . Survey staking $5,000 <br />13 . Geotechnical construction support $5,000 <br /> Subtotal Roadway Costs $184,200 <br />Joint Trench Items <br />14 . Addiitonal trenching cost $4,500 <br />15 . Additional vaults and splice boxes $9,000 <br /> (Boxes equipped with J-bars to splice <br /> primary and secondary service runs) <br />16 . Additional conduits (telephone, cable $18,750 <br /> and secondary electrical) <br />17 . PG&E Gas system $6,800 <br />18 . Additional PG&E Contract costs $25,000 <br />19 . Additional Joint Trench Design/Inspection costs $5,750 <br /> Subtotal Joint Trench Costs $69,800 <br />15% Construction Contingency (construction items only) 30 000 <br />Total Estimated Construction Cost $284,000 <br />Note: Utilities will be stubbed to future lots only. No service laterals will be constructed within future lots.. <br />