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<br />. <br /> <br />. <br /> <br />~ <br />"' <br />z <br />"' <br />a. <br />" <br />"' <br />I- <br />Z <br />w <br />:> <br />z <br />n: <br /> <br />. <br /> <br />.j <br /> <br />~ <br /> <br />" <br /> <br />:0 <br />"' <br />V <br />:J <br />o <br />o <br />n: <br />a. <br />w <br />n: <br /> <br />'. <br /> <br />o <br />-') <br />~ <br />r,.v <br />c.n <br />QO <br /> <br />Corps of Engineers <br />Revised July 1984 <br /> <br />ARKANSAS RIVER BASIN ABOVE KEYSTONE DAM <br /> <br />123, Arkansas and Walnut Rivers, Arkansas City, KS <br />STATUS: The draft survey report was sent to SWD for review in September 1983 <br />and was sent. for Field Level Review in April. The final survey report is <br />scheduled for May 1984. <br /> <br />DESCRIPTION: Arkansas City is located at the confluence of the Arkansas and <br />Walnut Rivers about 4 miles north of the Oklahoma-Kansas state line. The.rec- <br />ommended plan would include improvement of the existing seven mile long levee <br />and two miles of channel improvement on the lower Walnut River. The plan would <br />provide standard project flood protection for about 1,900 structures, of which <br />1,780 are residences. Because of the extensive urban development in the flood <br />plain and the threat of catastrophic losses due to overtopping of the existing <br />levee, the level of standard project flood protection was selected as the <br />minimum implementable level of protection. The plan would include the purchase <br />of 35 acres of bottom land for "in-kind" replacement of an equal acreage that <br />would be destroyed by the Walnut River channel improvement. <br /> <br />The project cost is estimated to be $14 million and the benefit-to-cost ratio <br />is 2.3 based on July 83 price levels and 7-7/8 percent discount rate. <br /> <br />SPONSOR: Arkansas City, KS. <br /> <br />133, Halstead Local Protection, KS <br />STATUS: Interim report (part of comprehensive study of the Arkansas River Great <br />Bend, KS, to Tulsa, OK) was submitted to the Office of the Secretary of the <br />Army in October 1981. Due to concerns dealing with policy changes and changes <br />in the survey area, the report was returned. A supplement is now being prepared <br />to address these concerns. <br /> <br />DESCRIPTION: (TD) Study completed in 1976. Recommended plan for control is a <br />combination of levee and channel improvement on the Little Arkansas River at <br />Halstead, KS. <br /> <br />SPONSOR: City of Halstead, Harvey County, and the State of Kansas. <br /> <br />16 <br />