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<br />2-3Z <br /> <br />CHART E: Viewshed and Viewpoints <br /> <br />e <br /> <br />Cri tical <br /> <br />Important <br /> <br />Normal <br /> <br />1. Viewpoint 'Elevated as 'Elevated <20' . Ground level <br /> location from bridge, <br /> relative to road, or two <br /> project story bldg. t:> 20') <br /> 'Scenic hwy . Interstate, . County or .farm <br /> or over look state or busy road <br /> country roads <br /> 'From resi- 'From isolated . From commercial <br /> dential, insti- home or farm- areas <br /> tutional or stead <br /> recreational <br /> areas <br />2. Location of 'Foreground* 'Middleground* . Background only <br /> proj ect within only only <br /> view shed 'Foreground to 'Middleground <br /> background* and background <br /> or a long vista <br /> on channel <br /> <br />See Figures 2-5 and 2-6 for examples of viewshed maps. <br /> <br />e <br /> <br />LANDSCAPE ARCHITECTURE SITE ANALYSIS <br /> <br />The intensity of a site analysis will vary between projects but the following <br />steps remain the same: <br /> <br />1. Locate opportunity and problem sites in the project area. <br /> <br />2. List in priority the landscape architecture objectives for <br />both problem and opportunity areas. <br /> <br />3. Document the analysis in a supporting data file. <br /> <br />1. Opportunity and Problem Sites <br /> <br />Opportunity sites are defined as areas where the channel design may <br />retain or rehabilitate existing landscape values. Problem sites are defined <br />as areas where the channel design may reduce or eliminate existing <br />landscape values. Opportunities and problems are located by superimposing <br />landscape value areas (use and visual) and project visibility data. For <br />example, an area of low visual resource value, moderate project visibility <br />and high use may be an opportunity site; whereas an area of high visual <br />resource value, high use, and moderate project visibility may be a problem <br />area. The relative importance of the visual resource value, use value <br />and visibility within the decision process can shift depending on the <br />project. For example, retaining the use value of the landscape may <br /> <br />e <br />