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<br />adequate to convey the increased flow.. Preliminary calculations show that the existing gates at the <br />Big Thompson diversion and Lake Loveland are large enough to handle the increased capacity. <br /> <br />Plan A 3 - Concrete Lined Canal for Decreed Capacity <br />The third structural alternative includes modifYing the geometry of the canal and relining the <br />existing concrete sections to restore the decreed capacity of the canal to 1,000 cfs. The existing <br />concrete would be replaced with a new concrete lining. The cross section of the canal would be <br />modified such that the bottom width would be increased to 40 feet with side slopes of l.5H: 1. OV. <br />The new cross sectional geometry would have the same approximate top width as the existing canal <br />and would eliminate the need for additional easements. Transitional sections are required between <br />the canal section and bridges. The existing bridges have sufficient capacity to convey the decreed <br />discharge of 1,000 cfs. The water surface would raise in the canal due to the increased discharge but <br />should not significantly affect normal operations of other structures. To accommodate the increased <br />water surface, the right embankment would need to be raised approximately 2 feet in some areas. <br /> <br />Plan A 4 - No Action <br />The non-structural alternative is to "do nothing" and continue operation of the canal. <br />Presently, the canal maximum capacity is 550 cfs and the decreed capacity is approximately 1,000 cfs. <br />The canal can not, in its present condition, be operated for flows higher than the 550 cfs. <br />Additionally, there is severe seepage along the benched section of the canal. This seepage could <br />cause a failure of the embankment during prolonged operation at its maximum or near maximum <br />capacity. Failure ofthe system would compromise the Company's ability to deliver water and result <br />in significant property damage with potential personal safety issues. <br /> <br />B. Plan B - Upper Greeley and Loveland Canal <br />The Greeley and Loveland Canal system is divided into an upper and lower section defined <br />by the location of the Hubbs Check structure. The upper Greeley and Loveland Canal includes the <br />reach from the Big Thompson diversion down to Hubbs Check. The lower Greeley and Loveland <br />Canal includes the reach from Hubbs Check structure to Equalizer Reservoir. Both structural and <br /> <br />E:\G&LREPOR. WPD <br /> <br />30 <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 />I <br />I <br />I <br />I <br />I <br />I <br />