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<br />. <br /> <br />In 1952, pursuant to Section i4 of the 1946 Flood Control Act, emer- <br />gency bank protection was provided. for valuable farmland and a county <br />road which were being destroyed by meandering of the river north of <br />the town. The work cons i sted of the excavat ion ofa pi lot channe I about <br />6,000 feet long across an oxbow and the construction of a diversion dike <br />at the upstream end to divert flows into the river channel. Tne Fed- <br />eral cost amounted to $25,600. In 1956, the pilot channel was extended <br />about 9,300 feet upstream at an additional Federal cost of $35,800. <br />This work was authorized in accordance with Section 15 of the 1946 <br />Flood Control Act. The city of Las Animas later extended the pi lot <br />channel downstream for a distance of about 10,500 feet to the AT&SF <br />Rai Iway bridge. <br /> <br />29. The only other Federal agency that has constructed water <br />resources improvements in the Arkansas River Basin in Colorado is the <br />Soi I Conservation Service. This agency, in addition to the regular <br />land treatment program carr)ed on through organized Sol I Conservation <br />Districts, has constructed or contemplates construction of a number of <br />floodwater retarding structures under the watershed proqram authorized <br />by the Watershed Protection and Flood Prevention Act (Publ ic Law 566, <br />as amended). In the upper watershed of Big Sandy Creek above Limon, <br />13 structures have been completed and one is under construction. One <br />structure, designated by the Soi I Conservation Service as FPCA No.2, <br />has been completed and another (FPCA No. I) is being bui It in the Fishers <br />Peak-Garbon Arroyos watershed near Trinidad. part of the city is <br />included in the project area and wil I benefit by the protection afforded. <br />Four structures are planned in the Vine land area about 10 mi les east of <br />Pueblo. A watershed Work Plan for three retardation dams has been <br />approved for Limon Creek, a tributQry to the Big Sandy. A plan for <br />floodwater retarding structures and channels on Cheyenne.Creek, near <br />the ColO.-Kans. State I ine, is being prepared. <br /> <br />30. There are more than 200 sma I I reservoirs constructed by local <br />interests in the Arkansas River Basin in Colorado. These reservoirs <br />are primarily for irrigation storage but they also provide local flood <br />control and domestic and industrial water supply. The largest of these <br />Is the Great Plains Reservoirs system, a series of off-channel reser- <br />voirs located northeast of John Martin Dam. This system has an aggre- <br />gate capacity of 100,000 acre-feet. Others are Adobe Creek Reservoir <br />on Adobe Creek with a capacity of 62,000 acre-feet; Cucharas and Two <br />Buttes Reservoirs on Cucharas River and Two Butte Creek, each with a <br />capacity of 40,000 acre~feet, and Horse Creek Reservoir on Horse Creek. <br /> <br />. <br /> <br />31. The only major flood control improvements constructed by <br />local interests in the Arkansas Basin are the Barrier Dam and Pueblo <br />Floodway. These improvements were bui It on the Arkansas River in <br />1924-25 by the Pueblo Conservancy District whiCh was organized soon <br />after the disastrous flood of 1921 for the purpose of providing flood <br />protection to the city of Pueblo. The floodway is a concrete trape- <br />zoidal channel approximately 10,000 feet long extending through the <br /> <br />II <br /> <br />