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Last modified
1/26/2010 11:12:59 AM
Creation date
10/9/2006 2:51:28 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8064.100
Description
Ute Tribes
State
CO
Basin
San Juan/Dolores
Water Division
7
Date
6/1/1987
Author
CO Dept of Law
Title
Agricultural Engineering Study - San Juan East Watershed - Final Report - Design-Cost Estimate for Off-Farm Irrigation Facilities and PIA Determination
Water Supply Pro - Doc Type
Report/Study
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<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 />I <br />I <br />I <br />I <br />I <br />I <br /> <br />1410 <br /> <br />quan t i ties in the range of one foot average cuts at a cost 0 f SO. 50 to <br />Sl.OO per cubic yard. As a conservatively low estimate, an average <br />6-inch cut at SO.50 per cubic yard for a total cost of S403 per acre <br />was assumed for this Task D analysis. Amortizing this cost at 8-3/8 <br />percent interest over 50 years gives a cost of S34.40, or in round <br />numbers, S35 per acre. This cost was then included in the on-farm <br /> <br />costs for gravity irrigation. <br /> <br />D.3 OFF-FARM IRRIGATION TRANSMISSION SYSTEM COST <br /> <br /> <br />0.3.1 General <br /> <br /> <br />The off-farm irrigation transmission facilities will generally <br /> <br /> <br />consist of transmission pipelines, pumping stations, and diversion <br /> <br /> <br />facilities. Roads for access to pump stations; rights-of-way; and <br /> <br /> <br />the extension of electrical power services to pumping stations were <br /> <br /> <br />not included in the cost analysis. Costs for those items included <br /> <br /> <br />are based on experience with similar facilities. All costs are then <br /> <br /> <br />amortized using a discount rate of 8-3/8 percent over a 50 year <br /> <br /> <br />project life. <br /> <br />D.3.2 Pumping Stations <br />Pump station costs were estimated using an equation which considers <br /> <br />flow and horsepower as variables. The equation is based on Boyle's <br /> <br /> <br />experience with various size agricultural pump stations which <br /> <br /> <br />include pump motor, pump structure, valves, surge control, and power <br /> <br /> <br />panel. The equation is: <br />Cost (S) = 2441(GPM)O.4l + 150(HP)l.05 <br /> <br />4 <br />
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