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<br />The I'ater surface profiles and pertinent hydraulic design data are pre- <br /> <br /> <br />sented in Appendix II, "Hydraulic Design." Preproject flood plains are <br /> <br /> <br />shol'n on plate 6 and postproject flood plains on plate 7. <br /> <br /> <br />24. \Qo1f Creek Diversion. The recommended plan as shown on plate 7 <br /> <br /> <br />I'ou1d consist of a levee on the alignment of the existing levee along <br /> <br /> <br />Wolf Creek I'ith an outfall channel to the Arkansas River. TIlis I'ou1d <br /> <br /> <br />extend from high ground on the right bank south of U.S. Highl'ay SO and <br /> <br /> <br />continue past State Highl'ay 51 to the northeast. The proposed diversion <br /> <br /> <br />would be designed to convey the peak discharge of the standard project <br /> <br /> <br />flood of 41,000 c.f.s. past Granada. For economy of the project, the <br /> <br /> <br />design of the outfall channel \'lOuld be for a discharge .less than SpF. <br /> <br /> <br />25. Existing Conditions. The capacity of the existing levee system <br /> <br /> <br />that extends from about 1/3 mile south of Colorado State Iliglmay SO to <br /> <br /> <br />the AT&SF Railroad Bridge is about 12,500 c.f.s. This section of levee <br /> <br /> <br />is the main protection for the tOl'n of Granada. The" levee is from the <br /> <br /> <br />north side of the AT&SF Railroad Bridge northeast to Colorado State <br /> <br /> <br />Highl'ay 51 Bridge then continues east for about 1-1/2 miles. ;nth the <br /> <br /> <br />existing levee system the town of Granado is protected from floods of <br /> <br /> <br />standard project flood magnitudes on the Arkansas River. <br /> <br /> <br />26. Interior Drainage. TIle s lope of the land in the vicinity of <br /> <br /> <br />Granada is in an easterly direction. TIlis generally r.taintains good drainage <br /> <br /> <br />of water al'ay from the existing levee. Il0\4ever, ponding areas are presently <br /> <br /> <br />formed by the existing levee at stations 57+00 and 97+00. These will remain <br /> <br /> <br />after construction of the proposed leve'e and an additional ponding area will <br /> <br /> <br />be formed at station 86+00. The drainage areas for these ponds are snaIl <br /> <br /> <br />and minimwn size outlets or lateral ditches will alleviate the ponding. <br /> <br />12 <br />