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<br />. <br /> <br />. <br /> <br />) <br /> <br />. <br /> <br />, <br /> <br />. <br /> <br />9 <br /> <br />@ <br /> <br />@ <br /> <br />8 <br /> <br />40,000 c.f.s. at the mouth. The reservoir \1Uuld cost approximately <br />;6,560,000, and ~~uld provide a flood control storage of 380,000 <br />acre-feet and Q total storaGe of 400,000 acre-feat. <br /> <br />6. The Tenkiller Ferry vrould be located on the Illinois River near <br />its mouth. This river has a length of about 145 miles and an area of <br />about 1.620 square miles. The topography of the l'."atershed is rough and <br />broken. The river is quite steep, with an average fall from source to <br />mouth of about 8 feet per mile. The reservoir at Tenklller Ferry ~~uld <br />provide praotically no protection to the Illinois River valley, and its <br />banefi ts would come from a reduction in flood heights in the arlca.ns&s <br />River and the ~185issippl. The reservoir under consideration would pro- <br />vide a flood oontrol storage of 580,000 aore-feet and II total storage of <br />600,000 acre-feet. and l'iOuld oost.l12,390.000. The reservoir ''i'Ould have <br />withheld about 26.000 cubic feet per second from the 1921 Arkansas River <br />orest flaw and would have reduced the state of the U1ssissippi River con- <br />fined by something in the vioinity of one-third of a foot. <br /> <br />7. The Ooloe;ah dam site is on the main stem of the Verdigris iliver, <br />located across a fairly wide valley. The dam under consideration ~uld <br />provide a flood control storage of 185.000 aore-feet and a total storage <br />of 815,000 aore-feet, at an estimated cost of .;8,345,000. <br /> <br />8. The 1!annf'ord reservoir is located near the mouth of the Chnarron <br />River. This reservoir will provide a flood oontrol storage of 580,000 <br />acre-feet and a total storage of 600,000 aore-feet, and ~~uld cost <br />i7,900.ooo. Because of its dOT!T1stream location, this reservoir will be <br />of little benefit to the Ctmarron Valley, but is Lmportatn in Arkansas <br />River valley protection. <br /> <br />C. Verdi~ris aiver in Kansas <br /> <br />1. The Verdigris River rises in the Flint Rills in Chase County. <br />Kansas, flows generally southeast 189 miles to the ;~nsas-oklah::)Ina line, <br />thenCe south 162 miles to the Arkansas River. The be.sin has an area of <br />8,150 square miles. '!"11th the exception of the area alan!; the western <br />boundary, the greater portion of the watershed is an undulating plain. <br />The fall is steep and run-off frOI!1 tributa.ry streams is rapid. The popu- <br />lation of the \'l8.tershed under consideration is 94,000. <br /> <br />2. Floods are frequent on the Verdigris River and its tributarios, <br />and usually occur during the crop-crowinc season. The greatost flood of <br />record at Independence is that of July 1904 with the estimated peak dis- <br />charge of 142.000 cubic feet per second, and t~ flood run-off of <br />2,500,000 acre-feet. The flood pill ins of the Verdicris, Fall and E;lk <br />Rivers in Kansas have 8. total area of 128.000 acres. <br /> <br />3. In addition to the flood problem, there is a serious problem <br />resulting from the protracted periods of low stream flow. Numerous com- <br />muni ties and industries are dependent upon strel\r..s, not only for water <br />supply, but also for disposal of sowage and 1'!8.ste. There 1s definite <br /> <br />2406 <br />