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<br />()02i3~ <br /> <br />. <br /> <br />Oeterminations for river restrictions to navigation <br />would not automatically occur when flows exceed 28,000 cis <br />nor would they apply to the entire river below Davis Dam <br />inasmuch as flows of 28,000 cfs or higher would not warrant <br />restrictions for certain river reaches or under certain <br />cond i t ions. Re'Str.ai&:J:J._on~li!:.ter,minattons.",ould.be"made-for <br />sp_ecif ic-river-reaches-bas"ed -on---a's's--e'ssments" of the potential <br />for.losS90f.human'11fe~the.potential for damages to property~ <br />and natural. re"!fources, and other-relev.ant-factors at that. .... <br />time ~ <br /> <br />The Coast Guard determinations for river restrictions to <br />navigation and removal of such restrictions are to be <br />coordinated among the Coast Guard, Bureau of Reclamation, <br />all sheriff departments, as well as each tribe and other <br />entities with regulatory powers for river navigation. Formal <br />procedures in this regard should be developed by the Coast <br />Guard in conjunction with Bureau of Reclamation, the sheriff <br />departments, and tribal officials and become part of overall <br />public advisory and notification procedures regarding river <br />operations and conditions. <br /> <br />V. ISSUE <br /> <br />. The need for Colorado River Floodway bank stabilization, <br />erosion control and protection, channel improvements and 0</ <br />maintenance, and other related activities. <br /> <br />DISCUSSION <br /> <br />The Colorado River Front Work and Levee System and <br />Program was authorized by the Acts of March 3, 1925 (43 Stat. <br />1186, 1198), January 21, 1927 (44 Stat. 1010,1021), July 1, <br />1940 (54 Stat. 708), and the Act of June 28. 1946 (60 Stat. <br />338), Public Law 79-469, as amended by the Act of May 1, 1958 <br />(72 Stat. 101). The System is a comprehensive network of <br />dikes, levees, drainage channels, desilting basins, river <br />channel training structures, and other structures constructed <br />by the Bureau of Reclamtion throughout the length of the <br />lower Colorado River, providing varying degrees of <br />channelization and Floodway definition. Other program <br />activities carried out by the Bureau of Reclamation pursuant <br />to the Acts include river channel reconstruction, dredging, <br />bank stabilization, levee armoring, channel rectification and <br />modification, and phreatophyte control and removal. The <br />authorizing Acts also provided for the annual appropriation <br />of federal funds to carry out these activities as well as for <br />investigations and studies conducted in support thereof. <br /> <br />. <br /> <br />II I -10 <br />