R2000-220 ACCEPTING THE PROPOSAL AND AUTHORIZING AN AGREEMENT

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� � � . Appendix I Task 1 -Site Inspection Harza will visit the site to inspect the areas identified in the 1999 Annual Inspection as needing repair. Two engineers will travel to Decatur and visit the dam to inspect the present condition of the concrete and identify other areas that may be in need of rehabilitation. During this visit, Harza will also investigate means of access to the site for the rehabilitation work. Task 2-Core and Test Shotcrete in Spillway Access Platform Harza will prepare a letter request for proposal to obtain a qualified subcontractor(s)to core the shotcrete and perform a petrographic analysis of the spillway access platform shotcrete. Harza will review the subcontractor's quotations and provide a recommendation of award to the City. Upon concurrence by the City, Harza will instruct the subcontractor to proceed with the shotcrete coring and petrographic analysis. The results of this testing are required to determine the appropriate rehabilitative measures necessary for the platform. The subcontractor's costs to perform the coring and petrographic analyses will be passed through to the City by Harza. We have included the estimated costs for these services as a separate line item in the Estimated Cost Schedule. Actual costs for the subcontracted services may be more or less than the estimated amount. Harza's costs to prepare the letter of proposal and review quotations is included under Task 2 on the Estimated Cost Schedule. The estimated subcontractor's fees does not include costs to set-up a work platform to obtain the core samples. Access and set-up at the site will need to be coordinated by the subcontractar with the City. Harza may assist the City with these coordination efforts as required. Task 3—Preparation of Technical Specifications and Drawings Under this task, Harza will prepare technical specifications and drawings suitable for obtaining bids for the embankment and concrete repairs. Harza will prepare technical specifications and design drawings for the embankment modifications and minor concrete repairs based on our observations during the 1999 Annual Inspection and those made on part of Task 1 - Site Visit. Harza will also prepare a Bid Schedule to be included in the City's Bid Package. The Bid Forms, proposed Contract Forms, and Contract General Conditions (Division 0 of the Specifications) will be prepared by the City. Harza will review the forms provided by the City, and may make recommendations for modification of these forms. The technical specifications and drawings provided by Harza will be incorparated into the Bid Package by the City. To assist us in preparation of the drawings,we anticipate that the City will provide Harza with copies of record drawings that the City may have for the Project, including drawings for the 1996 repair work. Several of these drawings are already in Harza's files, due to our recent work for the 1999 Annual Inspection. We assume that the City will make available to Harza all drawings not currently in our files that would be appropriate for review during this rehabilitative work. The drawings to be prepared by Harza will be suitable for construction with the expectation that the City will issue the Bid Documents for competitive bid and that the contract between the City and contractor will be a lump sum construction contract. We anticipate that one contractor will be able to complete the repairs. One draft set of technical specifications and drawings will be sent to the City for review. After receiving the City's comments, the specifications and drawings will be revised to address the comments received from the City. One final set of the revised package will be issued to the City, along with a CD Rom containing the electronic files for both the drawings and the technical specifications. The drawings will be provided as AutoCAD files. Harza will prepare an estimate of probable construction costs using the drawings with the City's comments incorporated. We have developed the following preliminary list of the drawings that we expect will be needed to complete the rehabilitation: Page 10 of 15