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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 /> <br />8 <br /> <br />Benefits to be derived from improved land use are not estimated, but obviously <br />they will be realized as a result of controlled water table depth and relief <br />to water logged lands. <br /> <br />Estimated Costs <br /> <br />The estimates presented below are based on 1970 construction costs and should <br />be adjusted to account for changes in costs after that year. Quantities of <br />materials are based on experience and knowledge gained during construction <br />of the Norton Drain. A bottom width of the channel is assumed to be 12 feet <br />for the purposes of this report. Any change in bottom width will be reflected <br />in the quantity of excavated material and reference should be made to the <br />preceding section, "Recommends tions for Design". <br /> <br />Excavation, 744,676 c.y. @ .35 a $ 260,636.60 <br />Road culverts, 6 @ $2400 - 14,400.00 <br />Vehicle croesings, 17 @ $1600 = 27,200.00 <br />Field drops, 75 @ 6300 = 22,500.00 <br />Riprap, 2000 c.y. @ $10 = 20,000.00 <br />Water crossings, 10 @ $2000 = 20,000.00 <br />Concrete, 20 c.y. @ $200 = 4,000.00 <br />Drain drops, 8 @ $3300 = 26,400.00 <br />Land acquisition, 274 acres @ $150 = 41,100.00 <br />Check & diversion structures, 11 @ $4500 = 49,500.00 <br />Tota I Estimated Construction Cost 485,736.60 <br /> <br /> <br />Administrative, Legal, Engineering and <br />Contingencies @ 25% Const. Cost <br /> <br />= <br /> <br />Total Estimated Project Cost <br /> <br />121,434.15 <br />= $ 607,170.75 <br /> <br />To avoid the problem of maintenance it is suggested that any ditches that <br />may be required to cross over the channel should utilize culverts in the <br />channel of sufficient length to permit the construction of the ditch in <br />backfill material. <br /> <br />In addition to the assumed bottom width other assumptions have been made in <br />arriving at the estimated cost of the project. These are: <br /> <br />1. Rights of way can be acquired at a cost of $150 per acre. <br />2. Eight major drop structures will be adequate to permit flow of water. <br />from major sources, e.g., the Waverly Drain. <br />3. One vehicle crossing per mile will serve adjacent land owners satisfactorily. <br />4. Seventy-five field drops will euffice. <br />5. The right of way will not be fenced on either side. In this respect <br />it should be kept in mind that 179,520 feet of fencing would be required <br />to fence both sides of the right of way. <br />6. Water developed by this project can be delivered to the Rio Grande by <br />aravi ty flow. <br /> <br />0577 <br />