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<br />I <br />I <br />I <br />I <br />. <br />I <br />. <br />I <br />. <br />. <br />. <br />. <br />. <br />I <br />I <br />'. <br />. <br />I <br />. <br /> <br />Section 3 - Development of Alternatives <br /> <br />Pipeline <br /> <br />Assumptions: <br />Depending on where the treated water storage would be located, the pipeline would be <br />designed to carry either the max-day flow of 7.0 MGD or the max-hour flow of 10.9 <br />MGD. The Hazen-Williams formula with a conservative friction coefficient of 120 was <br />used to initially size the pipe. The pipe size was checked so that velocities would not <br />exceed 8 feet per second and so that the water would reach Fort Morgan by gravity <br />flow. The City of Fort Morgan has requested that water be provided to the distribution <br />system at a pressure of 60 psi. Two points of connection to the existing distribution <br />system in the southern part of the City are anticipated. <br /> <br />Options: <br />Two options were considered for the alignment from the Wiggins/Bijou Creek area to <br />Ft. Morgan. The first option was to run the pipe down County Road Q and the second <br />option was to run the pipe down County Road P and along the continuing section line. <br />The Road Q alignment consists of about 15% gravel road, and 85% paved road. <br />Approximately 80% of the pipe would be laid adjacent to the road in the public right of <br />way. The remaining portion, however, would require placement beneath the roadway. <br />Several utilities run parallel to and across Road Q. Truck traffic on Road Q is often <br />heavy. <br /> <br />The Road P alignment would include about four miles of public and private range land <br />in addition to the public right of way along the road. A right of way would have to be <br />obtained and a maintenance road constructed for the portion not in the road right of <br />way. Road P is unpaved. The only paved portion of this alignment would be about one <br />mile along Road 18 between Road P and Road Q. The range land that would be <br />crossed has many elevation changes, but would not present a problem in terms of the <br />hydraulic grade line. <br /> <br />The Road P alignment will be less disruptive to traffic, utilities and paved roads and <br />therefore will be less expensive. Thus, the Road P alignment is recommended. <br /> <br />Raw Water Reservoir <br /> <br />Assumptions: <br />The NCWCD recommends that all participants in the SWSP provide a mmlmum <br />storage volume equivalent to 7 days of maximum flow in the SWSP pipeline. This will <br />allow the City to continue service out of the reservoir when the NCWCD takes the <br />SWSP pipeline out of service each year for inspection and maintenance. For Fort <br />Morgan, the capacity of the NCWCD pipeline is 9.5 cfs. Therefore the recommended <br />storage is 43 MG or 132 AF (7 days x 9.5 cfs). Another method of calculating the <br />required size of the reservoir is to look at the potential needs of the City. The 132 <br />AF / 43 MG volume would be equivalent to more than 6 days at the maximum day <br /> <br />MONTGOMERY WATSON <br /> <br />Page 3-3 <br />