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<br />, <br /> <br />. <br /> <br />. <br /> <br />., <br /> <br />13 <br /> <br />the engineering properties and potentiometric pressures within <br />the embankment and foundation materials. Either simplified flow <br />nets or a 2-D finite element model will be used, depending on the <br />complexity of the problem. Once the seepage has been adequately <br />modelled, the affects of various rehabilitation alternatives will <br />be evaluated. <br /> <br />Borrow 1Iaterial Evaluation--Potential borrow areas will be evalu- <br />ated to demonstrate that an adequate quantity of quality borrow <br />materials are available. The following will be considered during <br />the evaluation: <br /> <br />o Engineering Classification <br />o Permeability <br />o Compressibility <br />o Shear Strength Characteristics <br />o Moisture-Density Compaction <br />o Liquifaction Potential <br />o Potential for Dispersive Clays <br /> <br />Dam Rehabilitation Preliminary Design--At the completion of the <br />initial six civil design tasks, preliminary design drawings will <br />be prepared for complete dam rehabilitation work, The design <br />will include the spillway and embankment configuration demon- <br />strated to be the most cost-effective technical solution. The <br />preliminary design drawings will not contain sufficient detail <br />suitable for construction, but could be presented to the State <br />Engineer for comment. Preparation of final construction draw- <br />ings, specifications, and bid documents is beyond the scope of <br />work for Phase I, but would be prepared during Phase II. The <br />preliminary design will provide the basis for the construction <br />cost estimate. <br />