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<br />..- --.... <br /> <br />"" <br /> <br />.. <br /> <br />.. <br /> <br />.. <br /> <br />.. <br /> <br />.. <br /> <br />~ <br /> <br />... .. .....- <br /> <br />... .. .. .... -.............--....--..,.......----./---....-----.------"--,,.--.....- ". <br /> <br />'II'" <br /> <br />.. <br /> <br />"" <br /> <br />... <br /> <br />.. <br /> <br />.,.--.--....------,,-- <br /> <br />SUM MAR Y <br />TABLE 3 <br />STATE OF COLORADO <br />STREAMBANK EROSION STUDY - 1988 <br />ANALYSIS OF ECONOMIC, ENVIRONMENTAL, AND SOCIAL FACTORS <br /> <br />:------------------------------------------------------------------------------------------------------------------- <br /> <br /> Alternative Treatment (1) <br /> :----------------------------------------------------------------------------------------------- <br /> Factors Rock , Anchored , Rock : Jacks : Buffer : Sprig , Riparian , Remarks <br /> , , , , <br /> : Riprap : .Trees , Jetties , : Strips , Revetment : Zone <br /> , , , <br /> ----------------------------------------------------------------------------------------- ------------------------- <br /> Erosion Reduced ++ + + + + + ++ Streambank <br /> Sedimentation <br /> Reduc ed ++ + + + + + ++ <br /> Floodwater Roughness coefficient <br /> Reduced 0 of stream <br /> , <br /> , <br /> Wetlands 0 0 0 ,. 0 + + + <br /> , <br /> , <br /> , <br /> Wi I dl i fe 0 + 0 , + ++ + ++ <br /> , <br /> Groundwater 0 0 0 0 Recharge and wilter us.. <br /> Water Qual ity ++ + + + ++ ++ ++ Reduces erosion <br />N and sedimentation <br /><J1 <br /> Irrigation ++ + + + ++ ++ ++ Protects irrigation <br /> structures <br /> Endangered Plants <br /> and Animals 0 0 0 + ++ + ++ Increases habitat <br /> Net Economic <br /> Benefits High installation cost <br /> Recreation 0 + + ++ Reduces erosion <br /> and sedimentation <br /> Transportat ion ++ + + + + ++ ++ Reduces dallltag.e to <br /> roads and bridges <br /> Fish Hab i tat + + + + + Reduces sedimentation <br /> Social Resourc es 0 0 0 0 0 0 0 <br /> Visual Resources + + + Reduces cutbank areas <br /> <br />1------------------------------------------------------------------------------------------------------------------- <br /> <br />(1) Considered Value Ratings: 0 No Effect <br />+ Beneficial Effect <br />++ Very Beneficial Effect <br />Adverse Effect <br />Very Adverse Effect <br />