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<br />~~O <br /> <br />surface elevations, Analyses of these data yield topo maps, cross- <br />sectional profiles. stage-dlscharge relationships, and bankful flood <br />flow estimates (pre- and post-restoration), USGS data are analyzed <br />to determine flow magnitude. frequency. duration, and timing of <br />flooding both pre- and post-restoration, Baseline topo maps and <br />channel profiles also serve as a basis for post-restoration <br />comparison, <br /> <br />Design options are developed and overlain on site topos. Once the <br />preferred option has been selected, permits acquired. Section 7, <br />NEPA, Recovery Program approval, etc" the site is staked out to <br />show areas requiring grading, levee breaching, and spoils <br />deposition. Assistance and oversight is provided to equipment <br />,operators during site construction/excavation, <br /> <br />VII, Task Description and Schedule <br /> <br />Task 1, Reconnaissance surveys (Oct 199Z-Mar 199B) <br /> <br />Establish permanent monuments for main channel cross-sectional <br />profiles, hydraulic controls. water surface elevations. site <br />topography, bankful and levee elevations, <br /> <br />Task 2, Data collection (Oct 1997-Jul 1998) <br /> <br />Conduct channel cross-sectional profile surveys and topographic <br />surveys: collect stage-discharge data. <br /> <br />Task 3. Analyses (Oct 1997-Aug 1998) <br /> <br />Plot cross-sectional profiles and topo maps: develop stage-discharge <br />relationships, Conduct HEC-2 analyses: develop area-of-inundation <br />versus flow relationships: conduct hydrologic analyses, <br /> <br />Task 4, Configuration design (Oct 1997-Aug 1998) <br /> <br />Identify design options; advantages/disadvantages of each, <br /> <br />Task 5, Construction oversight (Oct 1997-Sept 1998) <br /> <br />Stake out areas of excavation: oversee construction, <br /> <br />4 <br />