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<br />. ' <br /> <br />... II, Loutzenhizer Canal - D Svstem <br /> <br />The Loutzenhizer Canal conveys irrigation water from the Loutzenhizer <br />Dam on the Uncompahgre River in a northwesterly direction a distance of 11.2 <br />miles, serving lands on the east side of the Uncompahgre Valley, The <br />Loutzenhizer Canal serves 6,200 acres of land. In some areas the canal flow <br />~ is conveyed in natural drainage channels, Those would be left in their <br />,C~ natural state, The capacity of the canal would range from 155 to 25 cfs, The <br />~ location of the canal centerline is shown on Drawing No, 1344-417-1414, <br />0) <br /> <br />A, Geology and Construction Materials <br /> <br />The canal crosses several large drainages with deep alluvium and flows <br />along the base of small hills with bedrock near the surface, Bedrock <br />throughout the Loutzenhizer Canal alignment is Mancos Shale of Cretaceous Age. <br />In the first half of the alignment, the canal crosses three areas of deep <br />alluvium deposited by Dry Cedar Creek, the Montrose Arroyo and Cedar Creek. <br />This alluvium is up to 57,5 feet deep adjacent to the Montrose Arroyo, and is <br />predominately clay, with some sand and gravel, In most of the second half of <br />the alignment, shallow residual clay and silt soils overlie the shale bedrock. <br /> <br />Borrow materials for compacted embankment could come from the alluvium <br />of several washes in the area of the Loutzenhizer Canal, The soils that could <br />be used are lean clays with plasticity indexes ranging from 10 to 16. <br /> <br />. <br /> <br />B, Canal Lining <br /> <br />Approximately 11.2 miles of the Loutzenhizer Canal would be in an open, <br />PVC membrane lined section. <br /> <br />C. PVC membrane-lined canal reaches <br /> <br />Capacity Length <br />(cfs) (feet) <br />155 8,450 <br />150 14,260 <br />135 4,380 <br />130 1,320 <br />115 10,510 <br />45 9,050 <br />25 11,130 <br /> <br />D. Structures <br /> <br />. <br /> <br />Structures to be constructed along the canal would include 6 irrigation <br /> <br />27 <br />