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<br />~& <br /> <br />VI. study Methods/Approach <br /> <br />1. Identification and evaluation of options for hydrologic <br />restoration. <br /> <br />Based on aerial photos, site visits, surveying, and HEC-2 <br />modelling, options will be identified for hydrologic and <br />geomorphologic restoration of selected sites. Input from <br />hydrologists, fluvial geomorphologists, and hydraulic engineers <br />will be solicited to evaluate various options. Factors <br />considered will include hydraulics, floodability/drainability, <br />erosion and deposition potential, and effects of restoration on <br />channel stability. Cost estimates will be developed for <br />options considered most promising. <br /> <br />2. Restoration of hydrologic regime at selected sites. <br /> <br />Based on input from hydrologists, fluvial geomorphologists, and <br />hydraulic engineers, sites will be configured to permit <br />flooding over the desired range of flows, beginning in FY 95. <br />Some sites will be restored to flood and drain naturally; other <br />sites will be fitted with inlet and/or outlet control <br />structures. <br /> <br />3. Evaluation of results. <br /> <br />Beginning in FY 95, sites will be monitored to determine if the <br />site floods and drains at the desired flows, and to determine <br />if the site and adjacent main channel remain stable (in terms <br />of changes in topography, sediment deposition, bank erosion, <br />etc.). To determine if site hydrology and geomorphology <br />changes over time as a function of flow and sediment, <br />topographic contour maps will be developed for each site as a <br />baseline. <br /> <br />VII. Task Description (FY 1995) <br /> <br />See "VI. Study Methods/Approach" above. <br /> <br />VIII. Study Schedule <br /> <br />Task 1. Evaluation of options <br /> <br />1994-1996 <br /> <br />Sites being considered for design/restoration will be visited <br />to evaluate options identified in conceptual management plans. <br /> <br />3 <br />