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Purpose: <br />To prepare a proposal to provide supplementary fluvial geomorphological <br />information and assistance for a section of Blanco River, City of San Marcos, <br />for Halff Associates, Inc. <br />Channel Evaluation Procedure: <br />The procedures for assessing stream stability have been put forth by many <br />but the methodology proposed for this evaluation which has been used for <br />decades and found to include the major steps in analysis of any river project <br />is shown below (after Simons, Li and Associates, 1982 Engineering Analysis <br />of Fluvial Systems): <br />ChaC <br />DitEP 2. Flow ' Re ' gimsfflocid-- Site Specific <br />scliarget Analysis <br />Summary <br />Reach Erosion/ <br />iii i <br />Stability Setbacksl <br />J Channel Desigin <br />I 1 -1 OrptionS I.. -.- <br />FluvialGeorn000logy <br />EngineeringAnaTysis, <br />Combined Analysis <br />=�Ufw <br />While the flow chart indicates the necessary steps in channel evaluation and <br />4-esign, the current project is thought to require four stages in which the <br />2bove will be incorporated. These are: <br />