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Below is a brief suitunary of the major project elements and their esrimated cost as <br />presented in the original cost estimate: <br />Mobilization = $5,000 <br />Excavate Access Bench = $7,500 <br />Excavate Cl�inuiey Drain = $7,000 <br />Supply/Place Chimney Gravel = $41,400 <br />Backfill Bench = $7,500 <br />SupplyJInstall Ctilmney Outfall = $5,000 <br />Excavate Toe Drain = $1,300 <br />Supply/Place Perforated Toe Drain = $6,000 <br />Suppiy/Place Toe Drain Gravel = 7 000 <br />Sub-total: _ $87,700 <br />5% Contingency = $4,385 <br />Construction Total: _ $92,085 <br />EngineeringQualityAssurance = $7,915 <br />Previous Piezometez Installation = $8,920 <br />Previous Eng. and Soils Work = $13,342 <br />Feasibility Study = 9 720 <br />Total Project Cost = $131,962 <br />The dam rehabilitation work was bid for constnzcrion in the sununer of 2002, and was <br />awazded to Zak Dirt, Longmont, Colorado in September of 2002, at their bid price of $93,'700. The <br />Contractor mobilized on-site in September of 2002 and completed the work in October of 2002. . <br />During construc6on of the project the Cedar Mesa Ditch and Reservoir Company <br />encountered wst overruus, due to design modificarions, construction access difficulties, and <br />additional work added during the time of construcrion. Theses addirional costs are summarized as <br />follows: <br />Professional En¢ineerinQ Services: <br />Prior to the development of final design plans for the project, the Cedar Mesa Ditch and <br />Reservoir Company hired the services of Smith Geotechnical, Fort Collins, Colorado to perform <br />preliminary engineering and soils investigation to rehabilitate the dam. This preliminary work was <br />conducted a number of years ago, with a significant portion of the prior soils work deemed unusable <br />by the State Engineer's Offlce. The State Engineer's concern on the soils investigation was the time <br />frame that had transpired from the point of collection to the time that the material testing actually <br />took place. Therefore, given the status of the preliminary engineering work, the Cedaz Mesa Ditch <br />and Reservoir Company hired the services of Knight Peisold, Denver, Colorado to utilized the <br />information available and to prepare final design plans to rehabilitate the existing reservoir to the <br />guidelines of the State Engineer's Office. <br />Added Cost: $28,OOQ <br />The final design submitted to the State Engineer's Office for review included the placement <br />of a vertical clumney drain in the existing dam embanlanent. Based on the recomnnendation from <br />the State Engineers Office during their review process this design altemative was changed to <br />include a buriress fill, 15-feet wide at a maximum height of 20-feet, placed at the downstream toe of <br />the existing dam. The main reason behind the change was the desire to unplement a solution that <br />