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C153857 Feasibility Study
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C153857 Feasibility Study
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Last modified
3/27/2014 12:38:37 PM
Creation date
10/5/2006 11:35:38 PM
Metadata
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Template:
Loan Projects
Contract/PO #
C153857
Contractor Name
Western Mutual Ditch Company
Contract Type
Loan
Water District
2
County
Weld
Bill Number
SPL
Loan Projects - Doc Type
Feasibility Study
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<br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Western Mutual Diversion Repairs and Improvements <br />ewes Feasibility Study <br />May 6, 1998 (Revised December 29, 1998) <br /> <br />Table 3 (cont.) <br /> <br />Summary of Estimated Island Revetment Costs <br />Western Mutual Ditch - Diversion Repairs and Improvements <br /> <br />Island Revetment - Rock Riprap <br />Description Quantity Unit Unit Costs Item Costs <br /> Low Estimate High Estimate Low Estimate High Estimate <br />Riprap 2,200 Tons $17,00 $20.00 $37,400,00 $44,000,00 <br />Bedding 900 Tons $11,00 $13,00 $9,900,00 $11,700,00 <br />Total $47,300.00 $55,700.00 <br /> <br />The Selected Project <br /> <br />The Ditch Company would like to replace the existing check structure in the south channel, and <br />provide concrete rubble bank revetment around the island. The desired financing is through an <br />Emergency Loan, Any work related to river training may be financed through a Construction Fund <br />Loan which would be applied for at a later date, A preliminary site plan, and a detailed <br />construction drawing for the check replacement and island revetment are included in Appendix D, <br /> <br />The former wood and rubble check structure will be replaced with a steel sheet pile check dam <br />provided with stoplogs to allow a low flow outlet, and flash boards for checking to the full height of <br />the previous structure. A downstream rock riprap stilling basin would dissipate the energy of flow <br />proceeding over the check. Riprap will also be provided as bank revetment on both banks of the <br />approach to the check, for a short distance on the south bank of the south channel, and around the <br />east end of the island on the north bank of the south channel and the south bank of the north <br />channel. <br /> <br />Cost Estimate <br /> <br />The selected alternative is estimated to cost a total of $164,000 ($15,000 net for design and the <br />feasibility study, plus $149,000 for construction), The construction cost estimate, including <br />contingencies, was provided by the company's engineer and is summarized in the following table, <br /> <br />7 <br />
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