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<br /><::> <br />.~>..) <br />l'V <br />-.J <br />0' <br />W <br /> <br />, <br />times in a sing'le year with each having some affect on water delivery tD <br />the crop1 and. The nature of damages include canal washouts, di rect <br />floodwater and sediment damage tD cropland and roads, along with 10SSDf <br />Production from cropland that is deprived Df irrigation water. The f1DDd <br />plain related tD the two drainages totals about 700 acres below the Amity <br />Canal for a 100-year frequency f1DOd. The flood plain is primarily <br />cropland a1Dng with a state highway and county rDads. A few commercial <br />facilities and residences are also situated in the flood plain. <br /> <br />Recent damaging floods were experienced in 1964, 1965, 1967, and 1970. <br />The increased operation and maintenance cost on the Amity Canal that <br />results from this periodic flDoding is abDut $6,000 per year. Damages on <br />the flood plain, and losses in crop production due to interruptiDn of <br />canal service would be in addition to this. It was estimated that the <br />average annual damages are $36,900 under present conditions. <br /> <br />Improvement measures are needed that, would cD11ect and pass f10Ddwaters <br />from the Amity Canal to the Arkansas River. <br /> <br />The Fort Lyons Canal parallels the Amity Canal apprDximately 230 feet <br />higher in elevation in the watershed, and the Kicking Bird Canal parallels <br />the Fort Lyons CanalapprDximately 40 additional feet higher in elevatiDn. <br />The Kicking Bird Canal delivers winter water to several reservoirs Dutside <br />the watershed. This canal is empty during the flood season and therefore <br />serves as a flood diversion channel for the upper reaches of the watershed. <br />According to local canal company officials, cana,l bank failure on the <br />Fort Lyons and Kicking Bird Canals has occurreQ only Dnce during the <br />hi story of the canals. Because of th is, only the drainage area bel DW the <br />FDrt Lyons Canal was considered to be,cDntributing to flooding in the <br />lower watershed. <br /> <br />Eros i on Damages <br /> <br />FloDding and erosion damages occur above the Amity Canal, There <br />appears to be little potential for completely solving this upstream <br />problem, therefore, prDject measures are not included in this report for, <br />these areas. Some of the upstream erosiDn problems cDuld, however, be <br />reduced through land 'treatment measures Dr critical area treatment phases <br />of a PL-566 project. <br /> <br />. <br /> <br />WORKS OF IMPROVEMENT <br />FOR POT E N T I A L 0 E' VEL 0 P MEN T <br /> <br />Wiley Drainage <br /> <br />Proposed structural works on the Amity Canal as it crosses Wiley <br />Drainage, will contrDl the peak flDOd flows from breaking the canal dike <br />and disrupting irrigati'Dn service tD downstream cropland. Flood flows <br />entering the Amity Canal will be transported thrDugh radial gates to a <br />flood channel. The floDd channel will transpDrt floodwaters 4,100 feet <br /> <br />_?, <br />