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FLOOD04263
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Last modified
1/25/2010 6:45:45 PM
Creation date
10/5/2006 12:30:12 AM
Metadata
Fields
Template:
Floodplain Documents
County
Statewide
Basin
Statewide
Title
Design of Open Channels
Date
10/1/1977
Prepared By
USDA Soil Conservation Service
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />Z-Z8 <br /> <br />work. For example, a channel may have a straight alignment and may <br />be a previously dug ditch; but it may be perceived as valuable because <br />it is used by the public as an open space. A LA site survey for channel <br />work should cover the following factors: <br /> <br />e <br /> <br />1. Landscape Use Value <br />Z. Visual Resource <br />3. Project Visibility <br /> <br />1. Landscape Use Value <br /> <br />The LA site survey should note how the existing project area is used <br />by the public. In most cases, channel work can be designed so the landscape <br />will retain its utility for human use, while improving its hydrologic <br />characteristics. Data to be noted and/or mapped for various reaches <br />include but are not limited to: <br /> <br />A. Identifying places where existing stream way vegetation function as a: <br /> <br />(1) Shelterbelt to help control wind erosion. <br /> <br />(Z) Privacy screen between homes. <br /> <br />(3) <br /> <br />Buffer between incompatible land uses such as industrial and <br />residential areas. <br /> <br />e <br /> <br />(4) <br /> <br />Noise barrier such as between homes and a busy highway. <br /> <br />(5) Safety barrier controlling pedestrian traffic such as between <br />schools and roads. <br /> <br />(6) Climate shelterbelt such as a wind/sun screen providing energy <br />conservation to homes and institutions. <br /> <br />B. Identifying areas along the stream way that function as or contain: <br /> <br />(1) Pedestrian paths between homes, schools and commercial areas. <br /> <br />(Z) Recreation areas contiguous to existing playgrounds, schools <br />and parks. <br /> <br />(3) An open space or environmental corridor within a developed <br />area. <br /> <br />Z. Visual Resource (VR) Value <br /> <br />Investigating the visual resource values should not involve a personal <br />judgment as to beauty. For example, a previously dug ditch might be <br />judged as "ugly" and yet have high VR value because it provides variety <br />in an otherwise monotonous landscape, A concrete drop structure may <br />be judged "ugly" and yet have high VR value because it relates architecturally <br />to the surro\Ulding landscape. Visual resource value involves an assessment <br /> <br />e <br /> <br />-- <br />
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