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Appendix I <br /> APPENDIX I <br /> SCOPE OF SERVICES <br /> GENERAL <br /> Harza will perform engineering services to address the following items identified in the 1999 Annual Report for <br /> the Lake Decatur Dam: <br /> l. Core shotcrete in spillway access platform and perform a petrographic analysis on the sample to <br /> evaluate for possible expansive aggregate. <br /> 2. Repair joints in the spillway overlay where concrete has broken off. <br /> 3. Fill the honeycombs in the concrete spillway overlay and provide a sack-rubbed concrete finish. <br /> 4. Replace the headwall under the storm sewer pipe on the left downstream edge of the river. <br /> 5. Repair eroded areas near the toe of the left embankment. <br /> 6. Add riprap to eroded embankment on the left side of the river,downstream of the storm sewer. <br /> 7. Plug the hole in the left side of the end sill that has water flowing through. <br /> 8. Repair the spalling at the water line on the upstream side of the outlet works. <br /> Harza has assumed that the concrete repairs will not require major structural modifications to the dam. The <br /> level of effort estimated is based on the conditions observed during our last inspection in 1999,to be confirmed <br /> during the first task under this scope of services. Rehabilitation of other areas of deteriorated concrete is not <br /> anticipated. <br /> Harza will perform engineering services for the preparation of technical specifications and plans,to be included <br /> in the bid package prepared by the City far the concrete and embankment repairs. The specifications and plans <br /> to be included in the bid package will be submitted to the City for approval, and used to solicit bids for <br /> construction. Some time has been included for responding to bidders questions and attendance at a pre-bid <br /> meeting at the site. <br /> WORK PLAN/TASK DESCRIPTION <br /> The scope of services for the project has been broken down into the following tasks: <br /> Task 1 —Site Inspection <br /> Task 2—Core and Test Shotcrete in Spillway Access Platform <br /> Task 3—Preparation of Technical Specifications and Drawings <br /> Task 4—Bid Support <br /> A description of each of these tasks follows. <br /> Page 9 of 15 <br />