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<br />CHAPTER 2 - PROJECT DESCRIPTION <br /> <br />2-01 Authorization. The Granada, Colorado, Flood Control Project was <br />authorized for construction by the Chief of Engineers under provisions of <br />Section 205 of the 1948 Flood Control Act, Public Law 87-874, as amended. <br /> <br />2-02 Location. The project is located at Granada, Prowers County, <br />Colorado, on Wolf Creek, a right bank tributary entering the Arkansas <br />River at about river mile 1115. <br /> <br />2-03 Agreements. The following agreements were executed in connection with <br />this project. A copy of each agreement is contained in Appendix B. <br /> <br />a. Agreement between the United States of America and the Town of <br />Granada, Colorado, for local cooperation with the United States of America <br />in the Granada, Colorado, Flood Control Project, executed on 22 November <br />1976, as revised by First Amendment thereto dated 8 January 1979. <br /> <br />b. Agreement between the Atchison, Topeka and Santa Fe Railway Company <br />and the Town of Granada of Prowers County, Colorado, relating to construction <br />and maintenance of flood protection near Granada, Prowers County, Colorado, <br />dated June 29, 1979. <br /> <br />c. Agreement between the Atchison, Topeka and Santa Fe Railway Company <br />and the Town of Granada, Prowers County, Colorado, relating to the use of <br />certain Santa Fe property for construction and maintenance of a levee for <br />flood protection at Granada, Prowers County, Colorado, dated June 29, 1979. <br /> <br />2-04 Brief Description of Project. The project provides, through improve- <br />ment of the existing Wolf Creek channel and levee system, standard project <br />flood protection to the town of Granada and 15-year reoccurrence interval <br />flood protection to adjacent farmlands. At the north edge of town, a leveed <br />outfall channel conveys flood flows up to the 15-year magnitude to the <br />Arkansas River. The right bank levee begins west of Granada, about 1,900 <br />feet south of the U. S. Highway 50 bridge over Wolf Creek and extends around <br />the west and north sides of town. At the point of beginning of the outfall <br />channel the right bank levee branches, one branch continues along the out- <br />fall channel while the other extends along the South Granada Ditch to a point <br />just east of the sewage treatment lagoons. At the point of take off of the <br />outfall channel a pipe through the levee allows low flows to continue in the ~_ <br />South Granada Ditch. The left bank levee begins just donwstream of the ~'/ <br />Highway 385 bridge and extends along the outfall channel. Interior drainage <br />runoff which collects in two ponding areas along the lands ide toe of the <br />right levee is conveyed into the South Granada Ditch through two gated struc- <br />tures. On the left bank, drainage runoff collects in V-ditches and is de- <br />livered into Wolf Creek via ungated structures. Drainage water in the North <br />Granada Ditch is diverted and conveyed to the Arkansas River in a structure <br />and ditch paralleling the left outfall channel levee. <br /> <br />-2- <br />