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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />B. <br /> <br />2 . Proposed Improvelllents. In order to restore the <br />reservoir to ful1 utilization, it is necessary to <br />reconstruct and repair major portions of the dam. <br />Both the upstream and downstream faces need to be <br />reworked to a flatter slope, new outlet works need <br />to be installed, riprap and riprap bedding must be <br />placed, a toe drain must be installed to control <br />the underseepage, and a new spillway constructed. <br />The new spillway is required for two reasons. The <br />existing spillway has no right-Of-way provisions <br />below it for spilling major flows, and it <br />currently takes runoff from one basin and <br />transfers it into another basin. Both of these <br />items make relocation of the spillway to the right <br />abutment desirable. <br />Geoloqic Investiqations. The geologic and geotechnical <br />investigations are described in Appendix G. <br />Desiqn. The design c]:"iteria for the dam and spillway <br />structures is based on several current publications <br />including textbooks, corps of Engineers design manuals, <br />and Bureau of Reclamation design manuals. A list of <br />references is provided in Appendix G with the geologic <br />investigations and a summary of the stability analyses <br />is provided which describes the design criteria used <br /> <br />c. <br /> <br />V-4 <br />