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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-30 <br /> Urban Areas e <br />(1) Stream way area is highly (1) Streamway area is not <br /> maintained (lawn, shrubs and a visual part of any main- <br /> trees) and/or is a visual part of tained area. <br /> residentiallots, school grounds <br /> and parks. <br />(Z) Adjacent landscape is highly (Z) Adjacent landscape is <br /> maintained with obvious care derelict, poorly maintained <br /> for its appearance (lawns, with no obvious concern <br /> residential gardens, industrial of its appearance. <br /> parks). <br />(3) Large, mature and/or (3) No significant woody <br /> flowering trees along stream- plants along streamways. <br /> way. <br />RATING CHART B: Visual Characteristics of the Water <br />High Value Visual Resource Low Value Visual Resource <br />(1) Clear, generally trans- (1) Visible color or turbidity, <br /> parent water. and/or pollution and/or e <br /> algae. <br />(Z) Desirable drift material (Z) Floating debris and trash. <br /> such as leaves. <br />(3) Variety of bottom material (3) Homogenous bottom material <br /> (bedrock boulders, gravel commonly found in all <br /> or unique bottom material area stream ways. <br /> for area). <br />(4) Conspicuous water movement, (4) No open water, weed <br /> rapids, riffles or slow move- choked or imperceptible <br /> ment with high reflecting water movement with <br /> ability. no reflecting abili ty. <br />(5) Variety of movement from (5) Homogenous movement <br /> fast reaches to still pools. with no visible variety. <br /> <br />e <br />
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