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FLOOD10332
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Last modified
1/29/2010 10:12:08 AM
Creation date
10/19/2007 11:37:58 AM
Metadata
Fields
Template:
Floodplain Documents
County
Bent
Prowers
Stream Name
Arkansas River
Basin
Arkansas
Title
Arkansas River from John Martin Dam to the Colorado/Kansas State Line: Channel Capacity and Riparian Habitat Planning Study
Date
7/1/1999
Prepared For
CWCB
Prepared By
USACE
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />IV <br /> <br />I <br />,I <br />,'I <br />'I <br />,.1 <br />I <br />I <br />I <br />;1 <br />:1 <br />,I <br />fl <br />~I <br />rl <br /> <br />.! . <br /> <br /> <br />,I <br />i.1 <br />~I <br />'I <br />'I <br /> <br />· Smaller-scale channel modification techniques cannot be approached generically. <br />Specific points along the river may benefit temporarily from channel modification to <br />avoid or reduce structural damage. Existing erratic hydraulic and sediment transport <br />characteristics demand site-specific design, determination of upstream and downstream <br />effects, and consideration of overall channel stability. Because of the widely varying <br />hydraulic characteristics throughout the study reach, a generic channel configuration <br />addressing conveyance, sediment transport, and vegetation encroachment on banks <br />could not be identified. <br /> <br />· Inundation of agricultural fields by river jlows can be addressed in various ways: <br />- Structurally, through rehabilitation of existing berms by local authorities; <br />- Non-structurally, through retirement of/ands from production and conversion to <br />pasture or riparian vegetation. This may be pursued individual landowners, or <br />facilitated by the Corps of Engineers' ecosystem restoration authority (Section <br />1135). <br /> <br />· Within the jloodway, cost-effective restoration of native riparian vegetation can be <br />accomplished through the Corps' Section 1135 program. Extensive opportunities for <br />riparian restoration (including salt cedar removal) exist within the study area Because <br />the majority of these lands are privately owned, this study has not selected ~ecific sites <br />suitable for restoration. Landowners will require the support of a local sponsor to take <br />advantage of the Section 1135 program. <br /> <br />· To prevent further encroachment on the jloodway, coordination and education of local <br />stakeholders is required The Colorado Water Conservation Board and the Arkansas <br />River Steering Committee can playa crucial role in coordinating these general <br />objectives in addition to facilitating all report recommendations. <br /> <br />\, <br />\ <br />
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