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<br />Project Description and Alternatives <br /> <br />The purpose of this project is to provide a means for the Rio Grande and Piedra Valley Ditch <br />Company to continue providing irrigation water to shareholders. Three alternatives were <br />considered: <br /> <br />1. The no-action alternative" <br />2. Reconstruct the check structures using concrete only ($103,33:3). <br />3. Reconstruct the check structures using steel sheet piling and concrete ($69,333). <br /> <br />Alternative No.1 was considered unacceptable since it means the Company could not deliver <br />water to its shareholders. <br /> <br />Alternative No. 2 was ruled out due to cost. <br /> <br />Alternative No.3 was selected since is considered to be the least costly reliable approach. <br /> <br />The selected alternative, Alternative No.3, involves construction of a combination steel sheet <br />piling and concrete check structure. The structures will have steel walls and cutoffs, sheet metal <br />piling wing walls and a reinforced concrete floor. The old wooden structures will be removed as <br />part of the cost of this alternative. Site preparation and dressing the site after construction are <br />also included in the cost of this alternative. <br /> <br />The Rio Grande County Office of the Natural Resoum9s Conservation Service (NRCS) has <br />prepared engineering designs and cost estimates for the project. Conceptual plans as prepared <br />by the NRCS are attacl9cd in th~ back pncket of this stuQ.y-. /"t-zq;,CI2F"P I JA b/3i(.d>I/K F- <br /> <br />The estimated cost of the completed project is $69,333. The cost breakdown is summarized in <br />Table 1. The NRCS Preliminary Design report and detailed cost estimate are included in <br />Appendix D. <br /> <br />Table 1. ABC Ditch Company - Diversion Structure Project. Cost Estimate <br /> <br /> Item Quantity Unit Unit Price $ Amount $ <br />Mobilization 1 Job 2000 $2000,,00 <br />Structure Removal 13 Ea. 666.69 $8666.97 <br />Steel Sheet Pile 14155 Lbs. 1.30 $18,401.50 <br />Concrete 54 C.Y. 225 $12,150.00 <br />Structural Steel 18262 Lbs" 1.06 $19,357.72 <br />Feasibility Study 1 Job 1090.81 $1090_81 <br />Design Work 1 Job 3000 $3000.00 <br />Quality Control 1 Job 4666 $4666.00 <br /> Total $69,333 <br /> <br />Rio Grande and Piedra V alley Ditch Company <br />Check Structure Feasibility Study <br />July 29,2003 <br /> <br />Page 9 of 15 <br />