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Mr. Joseph Elliott <br /> December 16, 1988 <br /> Page 2 <br /> <br /> Task 3--Comparative Cost Estimate. Prepare comparative <br /> construction cost estimate of micro-tunneling construction. <br /> Compare micro- tunnel ing cost to conventional construction <br /> methods. <br /> <br /> Task 5--Letter Report. Prepare a letter report summarizing our <br /> findings and recommendation. <br /> <br /> If we determine that micro-tunneling is a viable alternative for <br /> the Cross-Town Sanitary Sewer Interceptor, plans and specifications <br /> can be revised to include micro-tunneling as an alternate bid <br /> item. The required effort by Brown and Caldwell to revise the <br /> plans and specifications will be determined later. <br /> <br /> We estimated that the cost for the weir design and bidding schedule <br /> changes is $7,500, and the cost for the micro-tunneling evaluation <br /> is $6,000. We anticipate that the changes and additional work will <br /> take approximately two weeks. Final plans will be submitted to the <br /> City on December 19, 1988 for review. <br /> <br /> If you are in agreement with the proposed additional effort, we <br /> request that you sign both copies of this letter and return one <br /> copy to us to authorize the above-mentioned additional work items <br /> for a total estimated cost of $13,500. <br /> <br /> If you have any questions or need further information, please call <br /> Grace Chow at ( 415 ) 937-9010. <br /> <br /> Very truly yours, <br /> ACCEPTED FOR THE CITY OF <br /> BROWN AND CALDWELL PLEASANTON: <br /> <br /> Joseph A. Cotteral, Jr. By <br /> Vice President <br /> <br />~ Title <br />Roy C. Fedotoff <br />Project Manager Date <br /> <br /> RCF: am <br /> <br /> cc: Ms. G. Chow, Brown and Caldwell <br /> <br />BROWN AND CALDWELL <br />PO 8OX8045 WALNUT CREEK CA94596-1220 * (415) 937-9010 TELEX33-6490 · OFFICE AT 3480 BUSKIRK AVENUE PLEASANTHILL94523 <br /> <br /> <br />