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INTRODUCTION <br />The Huerfano - Cucharas Irrigation Company (HCIC), located in southeast Pueblo County, owns and <br />operates the Cucharas # 5 Dam and Reservoir. The dam is located in northern Huerfano County, on <br />the Cucharas River, approximately 16 miles northeast of the City of Walsenburg. In May of 1987, <br />while the reservoir was full to the spillway crest, the dam developed extensive seepage along the <br />toe abutments of the dam. It was discovered that the upstream concrete facing on the rock fill <br />dam had failed and was allowing large quantities of seepage flow to occur through the rock fill <br />embankment. The reservoir was lowered and the concrete facing repaired, but the State Engineer's <br />Office (SEO) restricted storage to gauge height 100 feet or approximately 7,500 acre-feet of storage. <br />The storage restriction has remained in effect since 1988 and there is a suspense date of October 1, <br />2010 imposed by the SEO to either rehabilitate the existing dam, replace it with a new dam or a <br />zero, no storage restriction will be imposed followed by an order to breach the dam and remove the <br />hazard it represents. The dam has performed adequately at the restricted level with only moderate <br />increases in seepage flow at higher storage levels being recorded, but the spillway is significantly <br />inadequate and there remain many unknowns concerning the condition of the embankment and <br />foundation. <br />The purpose of this feasibility study is to select a financially possible alternative that would prevent <br />a zero storage restriction from being imposed and maintain at least some storage in the reservoir. <br />The company is applying for a loan from the CWCB Water Project Loan Program in the amount of <br />90% of the eligible project costs to fund the project. The remaining 10 percent and loan repayment <br />will be supplied by company shareholder participation. <br />PROJECT SPONSOR <br />The Huerfano - Cucharas Irrigation Company is a non-profit mutual ditch company, incorporated <br />in the State of Colorado. The company was formed to promote agribusiness by delivering a <br />dependable irrigation water supply to the company shareholders. The company has the authority to <br />encumber debt, pledge collateral, is not subject to TABOR and has a board of five directors that <br />manage the company. The board of directors is able to make limited decisions for the shareholders <br />in accordance with the Articles of Incorporation and Bylaws, a copy of which is presented in <br />Appendix A. <br />PROJECT BACKGROUND AND NEED <br />A) STUDY AREA DESCRIPTION <br />The Cucharas No. 5 Dam is located in northeastern Huerfano County on the Cucharas River, <br />approximately 16 miles northeast of the City of Walsenburg. The dam is a 145-foot high rock fill <br />dam that has undergone several enlargements since the original construction in 1914. The <br />reservoir has a capacity of 35,395 acre-feet to the spillway crest elevation of 5766.0 feet <br />MSL, gauge height 120.5 ft. based on an October 2002 survey completed by Clyde B. Young & <br />Company. Table 1 represents the elevation-area-capacity of the reservoir based on the <br />Cucharas Feasibility Study ~ Introduction <br />