C150303 Feasibility Study - Laserfiche WebLink

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Project Description The following concerns were addressed in the project: • Erosion of the upstream dam face was repaired • Installation of adequate riprap • Reconstruction of the upstream dam face to a slope ratio of 3:1 • Outlet pipe was extended • Replacement of the upstream sluice gate The Design Report for Smith Reservoir Dam Reconstruction and Outlet Structure Improvements and construction plans prepared by Davis Engineering Service, Inc. and approved by the Office of the State Engineer are included in Appendix D. Specifications for Smith Dam Reconstruction & Outlet Structure Improvements prepared by Davis Engineering Service, Inc. are found in Appendix E. Cost Estimate and Alternatives Allen Davey with Davis Engineering Service, Inc. prepared a preliminary cost estimate report dated August 3, 2009. This estimate compared two alternative plans. Alternate 1 estimated at $192,396.00 was based on a concrete outlet pipe extension. Alternate 2 estimated at $243,980.00 was based on a steel outlet pipe extension. Both alternates included costs for correcting the upstream dam slope to a 3:1 ratio. The engineer submitted both plans for consideration to the Office of the State Engineer on August 7, 2009. This report is included in Appendix F. However, the actual cost of the project dramatically increased. The reconstruction plans were altered to meet specifications as required in the plans approved by the Office of the State Engineer. Unexpected costs also accrued due the large amount of silt which had to be removed from the site, pumping costs to keep water out of the repair site, and upgrading material to meet specifications set by the State Engineer. The plans approved by the State are included in Appendixes D and E. Estimated costs as of late November are shown below. Estimated Engineering (Davis Engineering Service) $ 70,000.00 Estimated Construction $597,000.00 Total $667,000.00 Trinchera Irrigation Company sold 864 of company held stock for $172,800.00 to cover most of the original estimated construction costs. As of November 30, 2009 TIC has spent $226,616.19. Two stockholders have committed to prepaying their 2010 assessments to help cover costs due in 2009. TIC has a$75,000.00 line of credit at Alamosa State Bank which can also be used. A stockholder has committed to a short term loan to cover the reconstruction costs until long term funding can be obtained.