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<br />EXHIBIT D <br /> <br />PRELIMINARY ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COSTS <br />VINEYARD AVENUE CORRIDOR SPECIFIC PLAN AREA <br />WATER StO~AGE TANK <br />City of Pleasanton, California <br /> <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 /> <br />ITEM DESCRIPTION <br />Roadwav Items <br /> <br />AMOUNT <br /> <br />1. Clear & Grub <br />2. Rough Grading <br />3. Import <br />4. Fine Grading <br />5. Asphalt Paving (3" AC/6" AB) <br />6. 2' Retaining Wall <br />7. 3' Retaining Wall <br />8. 4' Retaining Wall <br />9. 8" Sanitary Sewer <br />10. Sanitary Sewer Manholes <br />11. Additional roadway design costs <br />12. Survey staking <br />13. Geotechnical construction support <br /> <br />$2,000 <br />$5,000 <br />$6,000 <br />$2,200 <br />$36,000 <br />$4,000 <br />$15,000 <br />$15,000 <br />$39,000 <br />$39,000 <br />$11,000 <br />$5,000 <br />$5,000 <br />Subtotal Roadway Costs $184,200 <br /> <br />Joint Trench Items <br /> <br />16. <br /> <br />Addiitonal trenching cost <br />Additional vaults and splice boxes <br />(Boxes equipped with J-bars to splice <br />primary and secondary service runs) <br />Additional conduits (telephone, cable <br />and secondary electrical) <br />PG&E Gas system <br />Additional PG&E Contract costs <br />Additional Joint Trench Designllnspection costs <br />Subtotal Joint Trench Costs <br /> <br />$4,500 <br />$9,000 <br /> <br />14. <br />15. <br /> <br />$18,750 <br /> <br />17. <br />18. <br />19. <br /> <br />$6,800 <br />$25,000 <br />$5,750 <br /> <br />$69,800 <br /> <br />15% Construction Contingency (construction items only) <br />Total Estimated Construction Cost <br /> <br />$30.000 <br />$284,000 <br /> <br />Note: Utilities will be stubbed to future lots only. No service laterals will be constructed within future lots. <br />