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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 />deficiencies are listed in order of potential impact on the safety of the <br />existing structure. This prioritized list of deficiencies was used to lend <br />focus to the geotechnical evaluation and hydrologic 'analysis, and served as a <br />guide for the development of rehabilitation alternatives. <br /> <br />o Deterioration and reduced capacity of the drop inlet structure for <br />the outlet works and the unknowns associated with voids in the <br />embankment surrounding it. <br /> <br />o Uncontrolled embankment and foundation seepage. <br /> <br />o High phreatic level in the embankment, creating potential instability <br />of the downstream slope. <br /> <br />o Inadequate size of the riprap protection at the auxiliary spillway <br />overflow section. <br /> <br />o lack of an outlet structure for the outlet works. <br /> <br />o Uncontro11 ed seepage through the auxll i ary spi 11 way di ke anrl <br />foundation. <br /> <br />o Defects in the outlet works conduit. <br /> <br />o Inadequate riprap thickness on the upstream face. <br /> <br />o Sparseness of grass slope protecti on on the downstream face of the <br />dam. <br /> <br />o lack of freeboard on the dam and dike in the event of the PMF. <br /> <br />-42- <br />